10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.  20549

FORM 10-K

(Mark One)

x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2016

OR

oTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from __________________ to __________________

Commission File Number  001-33572

Bank of Marin Bancorp

(Exact name of Registrant as specified in its charter)

California	20-8859754
(State or other jurisdiction of incorporation)	(IRS Employer Identification No.)
504 Redwood Boulevard, Suite 100, Novato, CA	94947
(Address of principal executive office)	(Zip Code)

Registrant’s telephone number, including area code:  (415) 763-4520

Securities registered pursuant to Section 12 (b) of the Act:

None

Securities registered pursuant to section 12(g) of the Act:

Common Stock, No Par Value,
and attached Share Purchase Rights	NASDAQ Capital Market
(Title of each class)	(Name of each exchange on which registered)

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

Yes   o         No  x

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.

Yes   o         No  x

Note - checking the box above will not relieve any registrant required to file reports pursuant to Section 13 or 15(d) of the Exchange Act from their obligations under these sections.

Indicate by check mark whether the registrant (1) has filed all reports to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes x                   No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Yes x                   No o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of the registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this form 10-K or any amendment to this Form 10-K.

o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

 Large accelerated filer   o  Accelerated filer   x  Non-accelerated filer   o  Smaller reporting company   o

Indicate by check mark if the registrant is a shell company, as defined in Rule 12b-2 of the Exchange Act.

Yes   o         No  x

As of June 30, 2016, the last business day of the registrant's most recently completed second fiscal quarter, the aggregate market value of the voting common equity held by non-affiliates, based upon the closing price per share of the registrant's common stock as reported by the NASDAQ, was approximately $292 million. For the purpose of this response, directors and certain officers of the Registrant are considered the affiliates at that date.

As of February 28, 2017, there were 6,129,817 shares of common stock outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant's Proxy Statement for the Annual Meeting of Shareholders to be held on May 16, 2017 are incorporated by reference into Part III.

TABLE OF CONTENTS

PART I		Page-4
Forward-Looking Statements		Page-4
ITEM 1.	BUSINESS	Page-4
ITEM 1A.	RISK FACTORS	Page-11
ITEM 1B.	UNRESOLVED STAFF COMMENTS	Page-20
ITEM 2.	PROPERTIES	Page-20
ITEM 3.	LEGAL PROCEEDINGS	Page-20
ITEM 4.	MINE SAFETY DISCLOSURES	Page-20
PART II		Page-21
ITEM 5.	MARKET FOR REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES	Page-21
ITEM 6.	SELECTED FINANCIAL DATA	Page-23
ITEM 7.	MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	Page-24
	Forward-Looking Statements	Page-24
	Executive Summary	Page-25
	Critical Accounting Policies	Page-28
	RESULTS OF OPERATIONS	Page-26
	Net Interest Income	Page-26
	Provision for Loan Losses	Page-29
	Non-Interest Income	Page-29
	Non-Interest Expense	Page-30
	Provision for Income Taxes	Page-31
	FINANCIAL CONDITION	Page-31
	Investment Securities	Page-31
	Loans	Page-34
	Allowance for Loan Losses	Page-36
	Other Assets	Page-40
	Deposits	Page-40
	Borrowings	Page-41
	Deferred Compensation Obligations	Page-42
	Off Balance Sheet Arrangements and Commitments	Page-42
	Capital Adequacy	Page-42
	Liquidity	Page-43
	Selected Quarterly Financial Data	Page-44
ITEM 7A.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	Page-44
ITEM 8.	FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA	Page-46

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	NOTES TO CONSOLIDATED FINANCIAL STATEMENTS	Page-52
	Note 1: Summary of Significant Accounting Policies	Page-52
	Note 2: Investment Securities	Page-63
	Note 3: Loans and Allowance for Loan Losses	Page-67
	Note 4: Bank Premises and Equipment	Page-74
	Note 5: Bank Owned Life Insurance	Page-75
	Note 6: Deposits	Page-75
	Note 7: Borrowings	Page-76
	Note 8: Stockholders' Equity and Stock Plans	Page-77
	Note 9: Fair Value of Assets and Liabilities	Page-81
	Note 10: Benefit Plans	Page-84
	Note 11: Income Taxes	Page-85
	Note 12: Commitments and Contingencies	Page-87
	Note 13: Concentrations of Credit Risk	Page-87
	Note 14: Derivative Financial Instruments and Hedging Activities	Page-88
	Note 15: Regulatory Matters	Page-89
	Note 16: Financial Instruments with Off-Balance Sheet Risk	Page-91
	Note 17: Condensed Bank of Marin Bancorp Parent Only Financial Statements	Page-92
ITEM 9.	CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE	Page-93
ITEM 9A.	CONTROLS AND PROCEDURES	Page-93
ITEM 9B.	OTHER INFORMATION	Page-94
PART III		Page-94
ITEM 10.	DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE	Page-94
ITEM 11.	EXECUTIVE COMPENSATION	Page-94
ITEM 12.	SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS	Page-94
ITEM 13.	CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE	Page-94
ITEM 14.	PRINCIPAL ACCOUNTANT FEES AND SERVICES	Page-94
PART IV		Page-96
ITEM 15.	EXHIBITS AND FINANCIAL STATEMENT SCHEDULES	Page-96
ITEM 16.	FORM 10-K SUMMARY	Page-98
SIGNATURES		Page-99
EXHIBIT INDEX		Page-101

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PART I       

Forward-Looking Statements

This discussion of financial results includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, (the "1933 Act") and Section 21E of the Securities Exchange Act of 1934, as amended, (the "1934 Act"). Those sections of the 1933 Act and 1934 Act provide a "safe harbor" for forward-looking statements to encourage companies to provide prospective information about their financial performance so long as they provide meaningful, cautionary statements identifying important factors that could cause actual results to differ significantly from projected results.

Our forward-looking statements include descriptions of plans or objectives of Management for future operations, products or services, and forecasts of revenues, earnings or other measures of economic performance. Forward-looking statements can be identified by the fact that they do not relate strictly to historical or current facts. They often include the words "believe," "expect," "intend," "estimate" or words of similar meaning, or future or conditional verbs preceded by "will," "would," "should," "could" or "may."

Forward-looking statements are based on Management's current expectations regarding economic, legislative, and regulatory issues that may affect our earnings in future periods. A number of factors, many of which are beyond Management’s control, could cause future results to vary materially from current Management expectations. Such factors include, but are not limited to, general economic conditions and the economic uncertainty in the United States and abroad, including changes in interest rates, deposit flows, real estate values, and expected future cash flows on loans and securities; integration of acquisitions and competition; changes in accounting principles, policies or guidelines; changes in legislation or regulation; natural disasters; adverse weather conditions; and other economic, competitive, governmental, regulatory and technological factors affecting our operations, pricing, products and services.

Important factors that could cause results or performance to materially differ from those expressed in our prior forward-looking statements are detailed in Item 1A. Risk Factors of this report. Forward-looking statements speak only as of the date they are made. We do not undertake to update forward-looking statements to reflect circumstances or events that occur after the date the forward-looking statements are made or to reflect the occurrence of unanticipated events.

ITEM 1        BUSINESS

Bank of Marin (the “Bank”) was incorporated in August 1989, received its charter from the California Superintendent of Banks (now the California Department of Business Oversight or "DBO") and commenced operations in January 1990. The Bank is an insured bank by the Federal Deposit Insurance Corporation (“FDIC”). On July 1, 2007 (the “Effective Date”), a bank holding company reorganization was completed whereby Bank of Marin Bancorp (“Bancorp”) became the parent holding company for the Bank, the sole and wholly-owned subsidiary of Bancorp. On the Effective Date, each outstanding share of Bank of Marin common stock was converted into one share of Bank of Marin Bancorp common stock. Bancorp is listed at NASDAQ under the ticker symbol BMRC, which was formerly used by the Bank. Prior to the Effective Date, the Bank filed reports and proxy statements with the FDIC pursuant to Section 12 of the 1934 Act. Upon formation of the holding company, Bancorp became subject to regulation under the Bank Holding Company Act of 1956, as amended, and Federal Reserve Board reporting and examination requirements. Bancorp files periodic reports and proxy statements with the Securities and Exchange Commission pursuant to the Securities Exchange Act of 1934, as amended.

References in this report to “Bancorp” mean Bank of Marin Bancorp, parent holding company for the Bank. References to “we,” “our,” “us” mean the holding company and the Bank that are consolidated for financial reporting purposes.

Virtually all of our business is conducted through Bancorp's subsidiary, Bank of Marin, which is headquartered in Novato, California. In addition to our headquarters office, we operate through twenty offices in Marin, Sonoma, San Francisco, Napa and Alameda counties, with a strong emphasis on supporting the local communities. Our customer base is made up of business and personal banking relationships from the communities near the branch office locations. Our business banking focus is on small to medium-sized businesses, professionals and not-for-profit organizations.

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We offer a broad range of commercial and retail deposit and lending programs designed to meet the needs of our target markets. Our lending categories include commercial real estate loans, commercial and industrial loans, construction financing, consumer loans, and home equity lines of credit. Merchant card services are available for our business customers. Through third party vendors, we offer a proprietary Visa^®credit card product combined with a rewards program to our customers, a Business Visa^® program, a leasing program for commercial equipment financing, and cash management sweep services.

We offer a variety of personal and business checking and savings accounts, and a number of time deposit alternatives, including time certificates of deposit, Individual Retirement Accounts (“IRAs”), Health Savings Accounts, Certificate of Deposit Account Registry Service^® ("CDARS") and Insured Cash Sweep^® ("ICS") accounts. CDARS and ICS are part of a network through which we offer full FDIC insurance coverage in excess of the regulatory maximum by placing deposits in multiple banks participating in the network. For businesses, we now offer another sweep product which also provides full FDIC insurance coverage called Demand Deposit Marketplace, or DDM Sweep. We also offer mobile banking, remote deposit capture, Automated Clearing House services (“ACH”), fraud prevention services including Positive Pay for Checks, ACH, Apple Pay^®, peer-to-peer funds transfer, and image lockbox services. A valet deposit pick-up service is available to our professional and business clients.

Automated teller machines (“ATM's”) are available at most retail branch locations. Our ATM network is linked to the PLUS, CIRRUS and NYCE networks, as well as to a network of nation-wide surcharge-free ATM's called MoneyPass. We also offer our depositors 24-hour access to their accounts by telephone and through our internet banking products available to personal and business account holders.

We offer Wealth Management and Trust Services (“WMTS”) which include customized investment portfolio management, trust administration, estate settlement and custody services. We also offer 401(k) plan services to small and medium-sized businesses through a third party vendor.

We make international banking services available to our customers indirectly through other financial institutions with whom we have correspondent banking relationships.

We hold no patents, licenses (other than licenses required by the appropriate banking regulatory agencies), franchises or concessions.  The Bank has registered the service marks "The Spirit of Marin", the words “Bank of Marin”, the Bank of Marin logo, and the Bank of Marin tagline “Committed to your business and our community” with the United States Patent & Trademark Office.  In addition, Bancorp has registered the service marks for the words “Bank of Marin Bancorp” and for the Bank of Marin Bancorp logo with the United States Patent & Trademark Office.

All service marks registered by Bancorp or the Bank are registered on the United States Patent & Trademark Office Principal Register, with the exception of the words "Bank of Marin Bancorp" which is registered on the United States Patent & Trademark Office Supplemental Register.

Market Area

Our primary market area consists of Marin, San Francisco, Napa, Sonoma and Alameda counties. Our customer base is primarily made up of business, not-for-profit and personal banking relationships within these market areas.

We attract deposit relationships from individuals, merchants, small to medium-sized businesses, not-for-profit organizations and professionals who live and/or work in the communities comprising our market areas. As of December 31, 2016, approximately 66% of our deposits are in Marin County and southern Sonoma County, and approximately 55% of our deposits are from businesses and 45% from individuals.

Competition

The banking business in California generally, and in our market area specifically, is highly competitive with respect to attracting both loan and deposit relationships. The increasingly competitive environment is affected by changes in regulation, interest rates, technology and product delivery systems, and consolidation among financial service providers. The banking industry is seeing strong competition for quality loans, with larger banks expanding their activities to attract businesses that are traditionally community bank customers. In all of our five counties, we have significant competitionfrom nationwide banks with much larger branch networks and greater financial resources, as well as credit unions and

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other local and regional banks. Nationwide banks have the competitive advantages of national advertising campaigns and technology infrastructure to achieve economies of scale. Large commercial banks also have substantially greater lending limits and the ability to offer certain services which are not offered directly by us. Other competitors for depositors' funds are money market mutual funds and non-bank financial institutions such as brokerage firms and insurance companies.

In order to compete with the numerous, and often larger, financial institutions in our primary market area, we use, to the fullest extent possible, the flexibility and rapid response capabilities that derive from our local leadership and decision making. Our competitive advantages also include an emphasis on personalized service, extensive community involvement, philanthropic giving, local promotional activities and strong relationships with our customers.

In Marin County, we have the third largest market share of total depositsat 10.2%, based upon the FDIC deposit market share data as of June 30, 2016.¹ A significant driver of our franchise value is the growth and stability of our checking deposits, a low-cost funding source for our loan portfolio.

Employees

At December 31, 2016, we employed 262 full-time equivalent (“FTE”) staff. The actual number of employees, including part-time employees, at year-end 2016 included six executive officers, 106 other corporate officers and 164 staff. None of our employees are presently represented by a union or covered by a collective bargaining agreement. We believe that our employee relations are good. We have consistently been recognized as one of the “Best Places to Work” by the North Bay Business Journal and as a "Top Corporate Philanthropist” by the San Francisco Business Times.

SUPERVISION AND REGULATION

Bank holding companies and banks are extensively regulated under both federal and state law. The following discussion summarizes certain significant laws, rules and regulations affecting Bancorp and the Bank.

Bank Holding Company Regulation

Upon formation of the bank holding company on July 1, 2007, we became subject to regulation under the Bank Holding Company Act of 1956, as amended (“BHCA”) which subjects Bancorp to Federal Reserve Board ("FRB") reporting and examination requirements. Under the FRB's regulations, a bank holding company is required to serve as a source of financial and managerial strength to its subsidiary banks. Under this requirement, we are expected to commit resources to support the Bank, including at times when we may not be in a financial position to provide such resources, and it may not be in our, or our shareholders’ or creditors’, best interests to do so. In addition, any capital loans we make to the Bank are subordinate in right of payment to depositors and to certain other indebtedness of the Bank. The BHCA regulates the activities of holding companies including acquisitions, mergers and consolidations and, together with the Gramm-Leach Bliley Act of 1999, the scope of allowable banking activities. Bancorp is also a bank holding company within the meaning of the California Financial Code. As such, Bancorp and its subsidiaries are subject to examination by, and may be required to file reports with, the DBO.

Bank Regulation

Banking regulations are primarily intended to protect consumers, depositors' funds, federal deposit insurance funds and the banking system as a whole. These regulations affect our lending practices, consumer protections, capital structure, investment practices and dividend policy.

As a state chartered bank, we are subject to regulation, supervision and examination by the DBO. We are also subject to regulation, supervision and periodic examination by the FDIC. If, as a result of an examination of the Bank, the FDIC or the DBO should determine that the financial condition, capital resources, asset quality, earnings prospects, management, liquidity, or other aspects of our operations are unsatisfactory, or that we have violated any law or regulation, various remedies are available to those regulators including issuing a “cease and desist” order, monetary penalties, restitution, restricting our growth or removing officers and directors.

_________________________________________________________________________________________

¹ Source: SNL Financial LC of Charlottesville, Virginia

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The Bank addresses the many state and federal regulations it is subject to through a comprehensive compliance program that addresses the various risks associated with these issues.

Dividends

The payment of cash dividends by the Bank to Bancorp is subject to restrictions set forth in the California Financial Code (the “Code”) in addition to regulations and policy statements of the FRB. Prior to any distribution from the Bank to Bancorp, a calculation is made to ensure compliance with the provisions of the Code and to ensure that the Bank remains within capital guidelines set forth by the DBO and the FDIC. See also Note 8 to the Consolidated Financial Statements, under the heading “Dividends” in Item 8 of this report.

FDIC Insurance Assessments

Our deposits are insured by the FDIC to the maximum amount permitted by law, which is currently $250,000 per depositor, based on the 2010 Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”).

Our FDIC insurance assessment base is quarterly average consolidated total assets minus average tangible equity, defined as Common Equity Tier 1 Capital. The FDIC has reduced the deposit insurance assessment rates since the Deposit Insurance Fund Reserve Ratio reached its target level as of June 30, 2016. Assessment rates are currently between 1.5 and 40 basis points annually on the assessment base for banks in all risk categories. In deriving the risk categories, the FDIC uses a bank's capital level, supervisory ratios and other financial measures to determine a bank's ability to withstand financial stress.

Community Reinvestment Act

The Community Reinvestment Act (“CRA”) was enacted in 1977 to encourage financial institutions to meet the credit needs of the communities where they are chartered. All banks and thrifts have a continuing and affirmative obligation, consistent with safe and sound operations, to help meet the credit needs of their entire communities, including low and moderate income neighborhoods. Regulatory agencies rate each bank's performance in assessing and meeting these credit needs. The Bank is committed to serving the credit needs of the communities in which we do business, and it is our policy to respond to all creditworthy segments of our market. As part of its CRA commitment, the Bank maintains strong philanthropic ties to the community. We invest in affordable housing projects that help economically disadvantaged individuals and residents of low- and moderate-income census tracts, in each case consistent with our long-established prudent underwriting practices. We also donate to and volunteer with organizations in our communities that serve low- and moderate-income individuals, that offer educational and health programs to economically disadvantaged students and families, community development services and affordable housing programs. We provide CRA reportable small business, small farm and community development loans within our assessment areas. The CRA requires a depository institution's primary federal regulator, in connection with its examination of the institution, to assess the institution's record in meeting CRA requirements. The regulatory agency's assessment of the institution's record is made available to the public. This record is taken into consideration when the institution establishes a new branch that accepts deposits, relocates an office, applies to merge or consolidate, or expands into other activities. The FDIC's last CRA performance examination, completed in May 2015, was performed under the large bank requirements and was assigned a rating of “Satisfactory”.

Anti Money-Laundering Regulations

A series of banking laws and regulations beginning with the Bank Secrecy Act in 1970 requires banks to prevent, detect, and report illicit or illegal financial activities to the federal government to prevent money laundering, international drug trafficking, and terrorism. Under the Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001, financial institutions are subject to prohibitions against specified financial transactions and account relationships, requirements regarding the Customer Identification Program, as well as enhanced due diligence and “know your customer” standards in their dealings with high risk customers, foreign financial institutions, and foreign individuals and entities.

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Privacy and Data Security

The Gramm-Leach Bliley Act (“GLBA”) of 1999 imposes requirements on financial institutions with respect to consumer privacy. The GLBA generally prohibits disclosure of consumer information to non-affiliated third parties unless the consumer has been given the opportunity to object and has not objected to such disclosure. Financial institutions are further required to disclose their privacy policies to consumers annually. The GLBA also directs federal regulators, including the FDIC, to prescribe standards for the security of consumer information. We are subject to such standards, as well as standards for notifying consumers in the event of a security breach. We must disclose our privacy policy to consumers and permit consumers to “opt out” of having non-public customer information disclosed to third parties. We are required to have an information security program to safeguard the confidentiality and security of customer information and to ensure proper disposal of information that is no longer needed. Customers must be notified when unauthorized disclosure involves sensitive customer information that may be misused.

Consumer Protection Regulations

Our lending activities are subject to a variety of statutes and regulations designed to protect consumers, including the CRA, Home Mortgage Disclosure Act, Fair Credit Reporting Act, Fair Lending, Fair Debt Collection Practices Act, Flood Disaster Protection Act, Equal Credit Opportunity Act, the Fair Housing Act, Truth-in-Lending Act ("TILA"), and the Real Estate Settlement Procedures Act ("RESPA"). Our deposit operations are also subject to laws and regulations that protect consumer rights including Expedited Funds Availability, Truth in Savings, and Electronic Funds Transfers. Other regulatory requirements include: the Unfair, Deceptive or Abusive Acts and Practices ("UDAAP"), Dodd-Frank Act, Right To Financial Privacy and Privacy of Consumer Financial Information. Additional rules govern check writing ability on certain interest earning accounts and prescribe procedures for complying with administrative subpoenas of financial records.

Restriction on Transactions between Bank's Affiliates

Transactions between Bancorp and the Bank are quantitatively and qualitatively restricted under Sections 23A and 23B of the Federal Reserve Act and Federal Reserve Regulation W. Section 23A places restrictions on the Bank's “covered transactions” with Bancorp, including loans and other extensions of credit, investments in the securities of, and purchases of assets from Bancorp. Section 23B requires that certain transactions, including all covered transactions, be on market terms and conditions. Federal Reserve Regulation W combines statutory restrictions on transactions between the Bank and Bancorp with FRB interpretations in an effort to simplify compliance with Sections 23A and 23B.

Capital Requirements

The FRB and the FDIC have adopted risk-based capital guidelines for bank holding companies and banks. Bancorp's ratios exceed the required minimum ratios for capital adequacy purposes and the Bank meets the definition for "well capitalized." Undercapitalized depository institutions may be subject to significant restrictions. Payment of dividends could be restricted or prohibited, with some exceptions, if the Bank were categorized as "critically undercapitalized" under applicable FDIC regulations.

In July 2013, the federal banking regulators approved a final rule to implement the revised capital adequacy standards of the Basel Committee on Banking Supervision, commonly called Basel III. The final rule strengthens the definition of regulatory capital, increases risk-based capital requirements, makes selected changes to the calculation of risk-weighted assets, and adjusts the prompt corrective action thresholds. We became subject to the new rule on January 1, 2015 and certain provisions of the new rule will be phased in over the period of 2015 through 2019. We have modeled our ratios under the finalized Basel III rules and we do not expect that we will be required to raise additional capital when the new rules fully phase in. For further information on our risk-based capital positions and the effect of the new Basel III rules, see Note 15 to the Consolidated Financial Statements in Item 8 of this report.

The Dodd-Frank Wall Street Reform and Consumer Protection Act

The Dodd-Frank Act, a landmark financial reform bill comprised of voluminous new rules and restrictions on bank operations, included provisions aimed at preventing a repeat of the 2008 financial crisis and a new process for winding down failing, systemically important institutions in a manner as close to a controlled bankruptcy as possible. Among

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other things, the Dodd-Frank Act established new government oversight responsibilities, enhanced capital adequacy requirements for certain institutions, established consumer protection laws and regulations, and placed limitations on certain banking activities. The new Presidential Administration ("Administration") has indicated a desire to reform the Dodd-Frank Act in order to reduce the regulatory burden on U.S. companies, including financial institutions. At this time, no details on the proposed reforms have been published and we are uncertain whether the intended deregulation will have a significant impact on us.

Notice and Approval Requirements Related to Control

Banking laws impose notice, approval and ongoing regulatory requirements on any shareholder or other party that seeks to acquire direct or indirect "control" of an FDIC-insured depository institution. These laws include the BHCA and the Change in Bank Control Act. Among other things, these laws require regulatory filings by a shareholder or other party that seeks to acquire direct or indirect "control" of an FDIC-insured depository institution or bank holding company. The determination whether an investor "controls" a depository institution is based on all of the facts and circumstances surrounding the investment. As a general matter, a party is deemed to control a depository institution or other company if the party owns or controls 25% or more of any class of voting stock. Subject to rebuttal, a party may be presumed to control a depository institution or other company if the investor owns or controls 10% or more of any class of voting stock. Ownership by family members, affiliated parties, or parties acting in concert, is typically aggregated for these purposes. If a party's ownership of the Company were to exceed certain thresholds, the investor could be deemed to "control" the Company for regulatory purposes. This could subject the investor to regulatory filings or other regulatory consequences.

In addition, except under limited circumstances, bank holding companies are prohibited from acquiring, without prior approval:

• control of any other bank or bank holding company or all or substantially all the assets thereof; or

• more than 5% of the voting shares of a bank or bank holding company which is not already a subsidiary.

Incentive Compensation

The Dodd-Frank Act required federal bank regulators and the Securities and Exchange Commission ("SEC") to establish joint regulations or guidelines prohibiting incentive-based payment arrangements that encourage inappropriate risks by providing an executive officer, employee, director or principal stockholder with excessive compensation, fees, or benefits or that could lead to material financial loss to the entity. These regulations apply to institutions having at least $1 billion in total assets. In addition, regulators must establish regulations or guidelines requiring enhanced disclosure to regulators of incentive-based compensation arrangements. The agencies proposed such regulations in April 2011, but the regulations have not been finalized. If the regulations are adopted in the form initially proposed, they will impose limitations on the manner in which we may structure compensation for our executives.

The FRB will review, as part of the regular, risk-focused examination process, the incentive compensation arrangements of banking organizations, such as us, that are not “large, complex banking organizations.” These reviews will be tailored to each organization based on the scope and complexity of the organization’s activities and the prevalence of incentive compensation arrangements. The findings of the supervisory initiatives will be included in reports of examination. Deficiencies will be incorporated into the organization’s supervisory ratings, which can affect the organization’s ability to make acquisitions and take other actions. Enforcement actions may be taken against a banking organization if its incentive compensation arrangements, or related risk management control or governance processes, pose a risk to the organization’s safety and soundness and the organization is not taking prompt and effective measures to correct the deficiencies.

Available Information

On our Internet web site, www.bankofmarin.com, we post the following filings as soon as reasonably practical after they are filed with or furnished to the Securities and Exchange Commission: Annual Report to Shareholders, Form 10-K, Proxy Statement for the Annual Meeting of Shareholders, quarterly reports on Form 10-Q, current reports on Form 8-K, and any amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities and Exchange Act of 1934. The text of the Code of Ethical Conduct for Bancorp and the Bank is also included on the website. All such materials on our website are available free of charge. This website address is for information only

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and is not intended to be an active link, or to incorporate any website information into this document. In addition, copies of our filings are available by requesting them in writing or by phone from:

Corporate Secretary

Bank of Marin Bancorp    

504 Redwood Boulevard, Suite 100

Novato, CA 94947

415-763-4523

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ITEM 1A      RISK FACTORS

We assume and manage a certain degree of risk in order to conduct our business. The material risks and uncertainties that Management believes may affect our business are listed below and in Item 7A, Quantitative and Qualitative Disclosure about Market Risk. The list is not exhaustive; additional risks and uncertainties that Management is not aware of, or focused on, or currently deems immaterial may also impair business operations. If any of the following risks, or risks that have not been identified, actually occur, our financial condition, results of operations, and stock trading price could be materially and adversely affected. We manage these risks by promoting sound corporate governance practices, which includes but is not limited to, establishing policies and internal controls, and implementing internal review processes. Before making an investment decision, investors should carefully consider the risks, together with all of the other information included or incorporated by reference in this Annual Report on Form 10-K and our other filings with the SEC. This report is qualified in its entirety by these risk factors.

Earnings are Significantly Influenced by General Business and Economic Conditions

Our success depends, to a certain extent, on local, national and global economic and political conditions. While the unemployment rates and consumer sentiments in the U.S. and local economies have improved over recent years, these improvements are uneven and corporate investment growth is still sluggish. There can be no assurance that the improvements are sustainable. The pro-growth fiscal policy by the new Administration could cause the inflation rate to rise faster than expected, which may force the U.S. central bank to raise interest rates rapidly to combat rising inflation, even though economic activity remains uneven. Such stagflation risk may disrupt the financial market and may ultimately push the economy back to recession. In addition, oil price volatility, the level of U.S. debt and global economic conditions can continue to have a destabilizing effect on financial markets.

Weakness in commercial and residential real estate values and home sale volumes, financial stress on borrowers, increases in unemployment rates¹, and customers' inability to pay debt could adversely affect our financial condition and results of operations in the following ways:

• Demand for our products and services may decline;

• Low cost or non-interest bearing deposits may decrease;

• Collateral for our loans, especially real estate, may decline in value;

• Loan delinquencies, problem assets and foreclosures may increase as a result of a deterioration of our borrowers' creditworthiness;

• Investment securities may become impaired.

Interest Rate Risk is Inherent in Our Business

Our earnings are largely dependent upon our net interest income, which is the difference between interest income earned on interest-earning assets, such as loans and securities, and interest expense paid on interest-bearing liabilities, such as deposits and borrowed funds. Interest rates are sensitive to many factors outside of our control, including general economic conditions and the policies of various governmental and regulatory agencies and, in particular, the FRB, which regulates the supply of money and credit in the United States. Changes in monetary policy, including changes in interest rates, can influence not only the interest we receive on loans and securities and interest we pay on deposits and borrowings, but can also affect (i) our ability to originate loans and obtain deposits, (ii) the fair value of our financial assets and liabilities, and (iii) the average duration of our securities and loan portfolios. Our portfolio of loans and securities will generally decline in value if market interest rates increase, and increase in value if market interest rates decline. In addition, our loans and mortgage-backed securities are also subject to prepayment risk when interest rates fall, and the borrowers' credit risk may increase in rising rate environments.

In December 2016, the Federal Open Market Committee of the FRB (“FOMC”) increased the federal funds target rate by 25 basis points (basis points are equal to one hundredth of a percentage point) for the second time since 2008 to a range of 0.50% to 0.75%. While there was no interest rate action in the first meeting of 2017, the FOMC indicated that it may consider additional increases in 2017 upon further strengthening of labor markets and reaching the targeted two percent inflation rate. Additionally, other factors such as productivity, oil prices, the strength of the U.S. dollar, and

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¹ According to the California Employment Development Department's December 2016 labor reports, the unemployment rates in Marin, San Francisco, Sonoma, Napa and Alameda counties were 2.9%, 3.0%, 3.7%, 4.4% and 3.8%, respectively, compared to the state of California of 5.2%.

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global demand play a role in the FOMC's consideration of future rate hikes. Our net interest income is vulnerable to a falling or flat rate environment and will benefit if the prevailing market interest rates increase.

However, a rise in index rates leads to lower debt service coverage of variable rate loans if the borrower's operating cash flow does not also rise. This creates a paradox of an improving economy (leading to higher interest rates) with increased credit risk as short-term rates move up faster than the cash flow or income of the borrowers. Higher interest rates may also depress loan demand, making it more difficult for us to grow loans.

See the sections captioned “Net Interest Income” in Management's Discussion and Analysis of Financial Condition and Results of Operations in Item 7 and Quantitative and Qualitative Disclosures about Market Risk in Item 7A of this report for further discussion related to management of interest rate risk.

Banks and Bank Holding Companies are Subject to Extensive Government Regulation and Supervision

Bancorp and the Bank are subject to extensive federal and state governmental supervision, regulation and control. Holding company regulations affect the range of activities in which Bancorp is engaged. Banking regulations affectthe Bank's lending practices, capital structure, investment practices and dividend policy, and compliance costs among other things. Future legislative changes or interpretations may also alter the structure and competitive relationship among financial institutions.

Disruptions in the financial marketplace during the most recent recession have lead to additional regulations in an attempt to reform financial markets. This reform included, among other things, regulations over consumer financial products, capital adequacy, and the creation of a regime for regulating systemic risk across all types of financial service firms. Further restrictions on financial service companies may adversely affect our results of operations and financial condition, as well as increase our compliance risk. While there is discussion to deregulate the financial industry under the new Administration, the nature and extent of future legislative and regulatory changes from both the federal and California legislatures affecting us are unpredictable at this time.

Compliance risk is the current and prospective risk to earnings or capital arising from violations of, or non-conformance with, laws, rules, regulations, prescribed practices, internal policies and procedures, or ethical standards set forth by regulators. Compliance risk also arises in situations where the laws or rules governing certain bank products or activities of our clients may be ambiguous or untested. This risk exposes Bancorp and the Bank to potential fines, civil money penalties, payment of damages and the voiding of contracts. Compliance risk can lead to diminished reputation, reduced franchise value, limited business opportunities, reduced expansion potential and an inability to enforce contracts.

For further information on supervision and regulation, see the section captioned “Supervision and Regulation” in Item 1 above.

Intense Competition with Other Financial Institutions to Attract and Retain Banking Customers

We are facing significant competition for customers from other banks and financial institutions located in the markets that we serve. We compete with commercial banks, saving banks, credit unions, non-bank financial services companies, including financial technology firms, and other financial institutions operating within or near our service areas. Some of our non-bank competitors and peer-to-peer lenders may not be subject to the same extensive regulations as we are, giving them greater flexibility in competing for business. We anticipate intense competition will continue for the coming year due to the consolidation of many financial institutions and more changes in legislature, regulation and technology. National and regional banks much larger than our size have entered our market through acquisitions and they may be able to benefit from economies of scale through their wider branch networks, more prominent national advertising campaigns, lower cost of borrowing, capital market access and sophisticated technology infrastructures. Further, intense competition for creditworthy borrowers could lead to loan rate concession pressure and affect our ability to generate profitable loans.

Going forward, we may see continued competition in the industry as competitors seek to expand market share in our core markets. Further, our customers may withdraw deposits to pursue alternative investment opportunities in the recent bullish equity market. Technology and other changes have made it more convenient for bank customers to transfer funds into alternative investments or other deposit accounts such as online virtual banks and non-bank service

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providers. Efforts and initiatives we may undertake to retain and increase deposits, including deposit pricing, can increase our costs. Based on our current strong liquidity position, our adjustment to deposit pricing may lag the market in a rising interest rate environment. If our customers move money into higher yielding deposits or alternative investments, we may lose a relatively inexpensive source of funds, thus increasing our funding costs through more expensive wholesale borrowings.

Activities of Our Large Borrowers and Depositors May Cause Unexpected Volatilities in Our Loan and Deposit Balances, as well as Net Interest Margin

The recent rise in real estate values in the Bay Area market motivated our borrowers to sell real estate that collateralized our loans, leading to loan payoff activity. We experienced loan payoffs of $158 million and $169 million in 2016 and 2015, respectively, which approximated eleven percent turnover of our loan portfolio annually. Payoffs of loans originated during a higher interest rate environment may be replaced by new loans with lower interest rates, causing downward pressure on our net interest margin. On the other hand, early payoffs of acquired loans may lead to the acceleration of accretion on purchase discounts that temporarily inflate our net interest margin. Although we expect the gains from the early pay-offs of acquired loans to decline, we cannot predict the timing and their effect on our future net interest margin.

In addition, the top ten depositors account for approximately 10% of our total deposit balances. The business models and cash cycles of some of our large commercial depositors may also cause short-term volatility in their deposit balances held with us. As our customers' businesses grow, the dollar value of their daily activities may also grow leading to larger fluctuations in daily balances. Any long-term decline in deposit funding would adversely affect our liquidity. For additional information on our management of deposit volatility, refer to the Liquidity section of Item 7, Management's Discussion and Analysis, of this report.

Negative Conditions Affecting Real Estate May Harm Our Business and Our Commercial Real Estate ("CRE") Concentration May Heighten Such Risk

Concentration of our lending activities in the California real estate sector could negatively affect our results of operations if adverse changes in our lending area occur or intensify. Although we do not offer traditional first mortgages, nor have sub-prime or Alt-A residential loans or significant amounts of securities backed by such loans in the portfolio, we are not immune to volatility in those markets. Approximately 85% of our loans were secured by real estate at December 31, 2016, of which 65% were secured by CRE and the remaining 20% by residential real estate. Real estate valuations are influenced by demand, and demand is driven by factors such as employment rates and interest rates.

Loans secured by CRE include those secured by office buildings, owner-user office/warehouses, mixed-use residential/commercial properties and retail properties. There can be no assurance that the companies or properties securing our loans will generate sufficient cash flows to allow borrowers to make full and timely loan payments to us. In the event of default, the collateral value may not cover the outstanding amount due to us, especially during real estate market downturns.

Rising CRE lending concentrations may expose institutions like us to unanticipated earnings and capital volatility in the event of adverse changes in the CRE market. In addition, institutions that are exposed to significant CRE concentration risk may be subject to increased regulatory scrutiny. The FDIC regulatory threshold for heightened supervision is a two-part test. The first test applies when the non-owner occupied commercial real estate concentration exceeds 300% of the Bank's capital. As of December 31, 2016, our non-owner occupied CRE concentration was 332% of the Bank's capital, which declined from 354% as of December 31, 2015. Although this concentration exceeds the regulatory guideline, we are below the regulatory threshold for the second part of the test, which measures the non-owner occupied CRE growth rate during the prior 36 months. Since December 31, 2013, our CRE portfolio has grown 36%, below the 50% regulatory hurdle. We maintain heightened review and analyses of our concentrations and have regular conversations with regulators to avoid unexpected regulatory risk.

Severe Weather, Natural Disasters or Other Climate Change Related Matters Could Significantly Affect Our Business

Our primary market is located in an earthquake-prone zone in northern California, which is also subject to other weather or disasters, such as severe rainstorms, wildfire, drought or flood. These events could interrupt our business operations unexpectedly. Climate-related physical changes and hazards could also pose credit risks for us. For example, our

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borrowers may have collateral properties or operations located in coastal areas at risk to rising sea levels and erosion or subject to the risk of drought in California. The properties pledged as collateral on our loan portfolio could also be damaged by tsunamis, landslides, floods, earthquakes or wildfires and thereby the recoverability of loans could be impaired. A number of factors can affect credit losses, including the extent of damage to the collateral, the extent of damage not covered by insurance, the extent to which unemployment and other economic conditions caused by the natural disaster adversely affect the ability of borrowers to repay their loans, and the cost of collection and foreclosure to us. Lastly, there could be increased insurance premiums and deductibles, or a decrease in the availability of coverage, due to severe weather-related losses. The ultimate outcome on our business of a natural disaster, whether or not caused by climate change, is difficult to predict.

We are Subject to Significant Credit Risk and Loan Losses May Exceed Our Allowance for Loan Losses in the Future

We maintain an allowance for loan losses, which is a reserve established through provisions for loan losses charged to expense, that represents Management's best estimate of probable losses that may be incurred within the existing portfolio of loans (the "incurred loss model"). The level of the allowance reflects Management's continuing evaluation of specific credit risks, loan loss experience, current loan portfolio quality and present economic, political and regulatory conditions. The determination of the appropriate level of the allowance for loan losses inherently involves a high degree of subjectivity and requires us to make significant estimates of current credit risks and future trends, all of which may undergo material changes. Further, we generally rely on appraisals of the collateral or comparable sales data to determine the level of specific reserve and/or the charge-off amount on certain collateral dependent loans. Inaccurate assumptions in the appraisals or an inappropriate choice of the valuation techniques may lead to an inadequate level of specific reserve or charge-offs.

Changes in economic conditions affecting borrowers, new information regarding existing loans and their collateral, identification of additional problem loans, and other factors may require an increase in our allowance for loan losses. In addition, bank regulatory agencies periodically review our allowance for loan losses and may require an increase in the provision for loan losses or the recognition of further loan charge-offs. If charge-offs in future periods exceed the allowance for loan losses or cash flows from acquired loans do not perform as expected, we will need to record additional provision for loan losses.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. This ASU replaces the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses, requiring a financial asset measured at amortized cost basis to be presented at the net amount expected to be collected. Under the new guidance, an entity recognizes as an allowance its estimate of expected credit losses, which is intended to result in more timely recognition of such losses. This impairment framework is expected to have wide reaching implications to financial institutions and the allowance for loan losses may increase when it becomes effective on January 1, 2020. In March of 2016, we refined our methodology for determining the appropriate level of the allowance for loan losses.  We track individual net charge offs at the loan and risk grade level and utilize migration analysis in determining our historical loss rates.  We have integrated detailed monthly loan-level data into the new model.  As a result, the bank is well-positioned to implement the new guidance.  We are in the process of working with our vendor to determine what methodology and assumptions we will use going forward. Refer to Note 1 to the Consolidated Financial Statements in Item 8 for further discussion.

Non-performing Assets Take Significant Time to Resolve and Adversely Affect Results of Operations and Financial Condition.

While our non-performing assets are currently at a low level, there can be no assurance that we will not experience increases in non-performing assets in the future. Generally, interest income is not recognized on non-performing loans and the administrative costs on these loans are higher than performing loans. We might incur losses if the creditworthiness of our borrowers deteriorate to a point when we need to take collateral in foreclosures and similar proceedings, resulting in possible mark down of the loans to the fair value of the collateral. While we have managed our problem assets through workouts, restructurings and other proactive credit management practices that mitigate credit losses, decreases in the value of the underlying collateral, or deterioration in borrowers' performance or financial conditions, whether or not due to economic and market conditions beyond our control, could adversely affect our business, results of operations and financial condition. In addition, the resolution of non-performing assets can distract Management from other responsibilities.

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Securities May Lose Value due to Credit Quality of the Issuers

We invest in significant portions of investment securities issued by government-sponsored enterprises ("GSE"), such as Federal Home Loan Bank ("FHLB"), Federal National Mortgage Association (“FNMA”), Federal Home Loan Mortgage Corporation ("FHLMC"), and Federal Farm Credit Bank. We also hold mortgage-backed securities (“MBS”) securities issued by FNMA and FHLMC. While we consider these securities to have low credit risk as they carry the backing of the U.S. Government, they are not direct obligations of the U.S. Government. GSE debt is sponsored but not guaranteed by the federal government, whereas government agencies such as Government National Mortgage Association ("GNMA") are divisions of the government whose securities are backed by the full faith and credit of the United States.

Since 2008, both FNMA and FHLMC have been under a U.S. Government conservatorship. As a result, securities issued by FNMA and FHLMC have benefited from this government support. However, the new Administration may introduce housing finance reform to end GSE status, which could lead to a decline in the fair value of our securities issued or guaranteed by these entities. Certain FOMC members recently expressed views that reducing the Fed's holdings of U.S. Treasury bonds is another way to normalize monetary policy without relying on rate hikes. If the U.S. Government stops reinvesting or starts selling their holdings in U.S. Treasury or MBS issued by the GSE; if the government support is phased-out or completely withdrawn; or if either FNMA or FHLMC comes under financial stress or suffers creditworthiness deterioration, the value of our investments may be significantly impacted.

We also invest in tax exempt obligations of state and political subdivisions whose value may be negatively impacted by tax rate reductions discussed by the new Administration. Additionally, while we generally seek to minimize our exposure by diversifying the geographic location of our portfolio and investing in investment grade securities, there is no guarantee that the issuers will remain financially sound or continue their payments on these debentures.

Unexpected Early Termination of Interest Rate Swap Agreements May Affect Earnings

We have entered into interest-rate swap agreements, primarily as an asset/liability risk management tool, in order to mitigate the changes in the fair value of specified long-term fixed-rate loans and firm commitments to enter into long-term fixed-rate loans caused by changes in interest rates. These hedges allow us to offer long-term, fixed-rate loans to customers without assuming the interest rate risk of a long-term asset by swapping our fixed-rate interest stream for a floating-rate interest stream. In the event of default by the borrowers on our hedged loans, we may have to terminate these designated interest-rate swap agreements early, resulting in prepayment penalties charged by our counterparties and negatively affect our earnings.

Growth Strategy or Potential Future Acquisitions May Produce Unfavorable Outcomes

We seek to expand our franchise safely and consistently. A successful growth strategy requires us to manage multiple aspects of the business simultaneously, such as following adequate loan underwriting standards, balancing loan and deposit growth without increasing interest rate risk or compressing our net interest margin, maintaining sufficient capital, and recruiting, training and retaining qualified professionals.

Our strategic plan also includes merger and acquisition possibilities that either enhance our market presence or have potential for improved profitability through financial management, economies of scale or expanded services. We may incur significant acquisition related expenses either during the due diligence phase of acquisition targets or during integration of the acquirees. These expenses may negatively impact our earnings prior to realizing the benefits of acquisitions. We may also be exposed to difficulties in combining the operations of acquired institutions into our own operations, which may prevent us from achieving the expected benefits from our acquisition activities. Our earnings, financial condition and prospects after a merger will depend in part on our ability to integrate the operations and management of the acquired institution while continuing to implement other aspects of our business plan. Inherent uncertainties exist in integrating the operations of an acquired institution and there is no assurance that we will be able to do so successfully. Among the issues that we could face are:

• unexpected problems with operations, personnel, technology or credit;

• loss of customers and employees of the acquiree;

• difficulty in working with the acquiree's employees and customers;

• the assimilation of the acquiree's operations, culture and personnel;

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• instituting and maintaining uniform standards, controls, procedures and policies; and

• litigation risk not discovered during the due diligence period.

Undiscovered factors as a result of an acquisition could bring liabilities against us, our management and the management of the institutions we acquire. These factors could contribute to our not achieving the expected benefits from our acquisitions within desired time frames, if at all. Further, although we generally anticipate cost savings from acquisitions, we may not be able to fully realize those savings. Any cost savings that are realized may be offset by losses in revenues or other charges to earnings.

We May Not Be Able to Attract and Retain Key Employees

Our success depends, in large part, on our ability to attract and retain key people. Competition for the best people in most activities engaged by us has been intense, especially in light of the recent improvement in the job market, and we may not be able to hire skilled people or retain them. We do not have non-compete agreements with any of our senior officers. The unexpected loss of key personnel could have an unfavorable effect on our business because of the skills, knowledge of our market, years of industry experience and difficulty of promptly finding qualified replacement personnel.

Accounting Estimates and Risk Management Processes Rely on Analytical and Forecasting Models

The processes we use to estimate probable loan losses and to measure the fair value of financial instruments, as well as the processes used to estimate the effects of changing interest rates and other market measures on our financial condition and results of operations, depends upon the use of analytical and forecasting models. These models reflect assumptions that may not be accurate, particularly in times of market stress or other unforeseen circumstances. Even if these assumptions are adequate, the models may prove to be inadequate or inaccurate because of other flaws in their design or their implementation. If the models we use for interest rate risk and asset-liability management are inadequate, we may incur increased or unexpected losses upon changes in market interest rates or other market measures. If the models we use for determining our probable loan losses are inadequate, the allowance for loan losses may not be sufficient to support future charge-offs. If the models we use to measure the fair value of financial instruments are inadequate, the fair value of such financial instruments may fluctuate unexpectedly or may not accurately reflect what we could realize upon sale or settlement of such financial instruments. Any such failure in our analytical or forecasting models could have a material adverse effect on our business, financial condition and results of operations.

The Value of Goodwill and Other Intangible Assets May Decline in the Future

As of December 31, 2016, we had goodwill totaling $6.4 million and a core deposit intangible asset totaling $2.6 million from a business acquisition. A significant decline in expected future cash flows, a significant adverse change in the business climate, slower growth rates or a significant and sustained decline in the price of our common stock could necessitate taking charges in the future related to the impairment of goodwill or other intangible assets. If we were to conclude that a future write-down of goodwill or other intangible assets is necessary, we would record the appropriate charge, which could have a material adverse effect on our business, financial condition and results of operations.

We May Take Filing Positions or Follow Tax Strategies That May Be Subject to Challenge

We provide for current and deferred taxes in our consolidated financial statements based on our results of operations, business activities and business combinations, legal structure and federal and state legislation and regulations. We may take filing positions or follow tax strategies that are subject to interpretation of tax statutes. Our net income may be reduced if a federal, state or local authority were to assess charges for taxes that have not been provided for in our consolidated financial statements. Taxing authorities could change applicable tax laws and interpretations, challenge filing positions or assess new taxes and interest charges. If taxing authorities take any of these actions, our business, results of operations or financial condition could be significantly affected.

We May Be Affected by Changes in Tax Laws and Regulations

Congress and the new Administration have indicated a desire to reform U.S. corporate taxes, including reducing the corporate tax rate. An increase in our on-going net income from a reduction in corporate tax rates may be partially

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offset by a write-down in the value of our deferred tax assets upon a tax rate reduction. The one-time impact on our deferred tax assets is dependent on the extent of the tax rate reduction, which remains uncertain at this time.

The Financial Services Industry is Undergoing Rapid Technological Changes and, As a Result, We Have a Continuing Need to Stay Current with Those Changes to Compete Effectively and Increase Our Efficiencies. We May Not Have The Resources to Implement New Technology to Stay Current with These Changes

The financial services industry is undergoing technological changes with frequent introductions of new technology-driven products and services. In addition to providing better client service, the effective use of technology increases efficiency and reduces operational costs. Our future success will depend in part upon our ability to use technology to provide products and services that will satisfy client demands securely and cost-effectively. In connection with implementing new technology enhancements and/or products, we may experience operational challenges (e.g. human error, system error, incompatibility) which could result in us not fully realizing the anticipated benefits from such new technology or require us to incur significant costs to remedy any such challenges in a timely manner.

Risks Associated with Cyber Security Could Negatively Affect Our Earnings and Reputation

Our business requires the secure e-management of sensitive client and bank information. We work diligently through implementing security measures that are intended to make our communications and information systems safe to conduct business. Cyber threats such as social engineering, ransomware, and phishing emails are more prevalent now than ever before. These incidents include intentional and unintentional events that may present threats that are designed to disrupt operations, corrupt data, release sensitive information or cause denial-of-service attacks. A cyber security breach of systems operated by the Bank, merchants, vendors, customers, or externally publicized breaches of other financial institutions may significantly harm our reputation, result in a loss of customer business, subject us to regulatory scrutiny, or expose us to civil litigation and financial liability. While we have systems and procedures designed to prevent security breaches, we cannot be certain that advances in criminal capabilities, physical system or network break-ins or inappropriate access will not compromise or breach the technology protecting our networks or proprietary client information.

We Rely on Third-Party Vendors for Important Aspects of Our Operation

We depend on the accuracy and completeness of information and systems provided by certain key vendors, including but not limited to data processing, payroll processing, technology support, investment safekeeping and accounting. In particular, we outsource core processing to Fidelity Information Services ("FIS") and wire processing to D+H, both of which are leading financial services solution providers, which allow us access to competitive technology offerings without having to directly invest in their development. Our ability to operate, as well as our financial condition and results of operations, could be negatively affected in the event of an interruption of an information system, an undetected error, a cyber breach, or in the event of a natural disaster whereby certain vendors are unable to maintain business continuity.

Failure of Correspondent Banks May Affect Liquidity

Financial services institutions are highly interrelated as a result of clearing and exchange, counterparty, and other business relationships. In particular, the financial services industry in general was materially and adversely affected by the recent credit crisis, including the failure and consolidation of banks in the industry in recent years. While we regularly monitor the financial health of our correspondent banks and we have diverse sources of liquidity, should any one of our correspondent banks become financially impaired, our available credit may decline and/or they may be unable to honor their commitments.

Deterioration of Credit Quality or Insolvency of Insurance Companies May Impede Our Ability to Recover Losses

The financial crisis led certain major insurance companies to be downgraded by rating agencies. We have property, casualty and financial institution risk coverage underwritten by several insurance companies, who may not avoid insolvency risk inherent in the insurance industry. In addition, some of our investments in obligations of state and political subdivisions are insured by insurance companies. While we closely monitor the credit ratings of our insurers and the insurers of our municipal securities and we are poised to make quick changes if needed, we cannot predict

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an unexpected inability to honor commitments. We also invest in bank-owned life insurance policies on certain members of Management, which may lose value in the event of a carrier's insolvency. In the event that a bank-owned life insurance policy carrier's credit ratings fall below investment grade, we may exchange policies to other carriers at a cost charged by the original carrier, or we may terminate the policies which may result in adverse tax consequences.

Our loan portfolio is secured primarily by properties located in earthquake or fire-prone zones. In the event of a disaster that causes pervasive damage to the region in which we operate, not only the Bank, but also the loan collateral may suffer losses not recoverable by insurance.

Bancorp Relies on Dividends from the Bank to Pay Cash Dividends to Shareholders

Bancorp is a separate legal entity from its subsidiary, the Bank. Bancorp receives substantially all of its cash stream from the Bank in the form of dividends, which is Bancorp's principal source of funds to pay cash dividends to Bancorp's common shareholders, service subordinated debt, and cover operational expenses of the holding company. Various federal and state laws and regulations limit the amount of dividends that the Bank may pay to Bancorp. In the event that the Bank is unable to pay dividends to Bancorp, Bancorp may not be able to pay dividends to its shareholders or pay interest on the subordinated debentures. As a result, it could have an adverse effect on Bancorp's stock price and investment value.

Under federal law, capital distributions from the Bank would become prohibited, with limited exceptions, if the Bank were categorized as "undercapitalized" under applicable FRB or FDIC regulations. In addition, as a California bank, Bank of Marin is subject to state law restrictions on the payment of dividends. For further information on the distribution limit from the Bank to Bancorp, see the section captioned “Bank Regulation” in Item 1 above and “Dividends” in Note 8 to the Consolidated Financial Statements in Item 8 of this report.

The Trading Volume of Bancorp's Common Stock is Less than That of Other, Larger Financial Services Companies

Our common stock is listed on the NASDAQ Capital Market exchange. Our trading volume is less than that of nationwide or larger regional financial institutions. A public trading market having the desired characteristics of depth, liquidity and orderliness depends on the presence of willing buyers and sellers of common stock at any given time. This presence depends on the individual decisions of investors and general economic and market conditions over which we have no control. Given the low trading volume of our common stock, significant trades of our stock in a given time, or the expectations of these trades, could cause volatility in the stock price.

We may need to Raise Additional Capital in the Future, and if we Fail to Maintain Sufficient Capital, Whether due to Losses, an Inability to Raise Additional Capital or Otherwise, our Financial Condition, Liquidity and Results of Operations, as well as our Ability to Maintain Regulatory Compliance, Could be Adversely Affected

We face significant capital and other regulatory requirements as a financial institution. We may need to raise additional capital in the future to provide us with sufficient capital resources and liquidity to meet our commitments and business needs, which could include the possibility of financing acquisitions. In addition, Bancorp, on a consolidated basis, and the Bank, on a stand-alone basis, must meet certain regulatory capital requirements and maintain sufficient liquidity. Importantly, as discussed below, regulatory capital requirements could increase from current levels, which could require us to raise additional capital or contract our operations. Our ability to raise additional capital depends on conditions in the capital markets, economic conditions and a number of other factors, including investor perceptions regarding the banking industry, market conditions and governmental activities, and on our financial condition and performance. Accordingly, we cannot assure that we will be able to raise additional capital if needed or on terms acceptable to us. If we fail to maintain capital to meet regulatory requirements, our liquidity, business, financial condition and results of operations could be materially and adversely affected.

We may be Subject to more Stringent Capital Requirements in the Future

We are subject to regulatory requirements specifying minimum amounts and types of capital that we must maintain. From time to time, the regulators change these regulatory capital adequacy guidelines. If we fail to meet these minimum capital guidelines and other regulatory requirements, Bancorp or the Bank may be restricted in the types of activities

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we may conduct and we may be prohibited from taking certain capital actions, such as paying dividends and repurchasing or redeeming capital securities.

In particular, the capital requirements applicable to us under the Basel III capital framework in the United States, which became effective beginning January 2015, will be fully phased-in by January 2019. As these new rules take effect, we will be required to satisfy additional, more stringent, capital adequacy standards than we have in the past. In addition, if we become subject to annual stress testing requirements, our stress test results may have the effect of requiring us to comply with even greater capital requirements. While we currently meet the requirements of the new Basel III-based capital rules on a fully implemented basis, we may eventually fail to do so. In addition, these requirements could have a negative affect on our ability to lend, grow deposit balances, make acquisitions or make capital distributions in the form of dividends or share repurchases. Higher capital levels could also lower our return on equity.

We may be Subject to Environmental Liabilities in Connection with the Foreclosure on Real Estate Assets Securing our Loan Portfolio

Hazardous or toxic substances or other environmental hazards may be located on the properties that secure our loans. If we acquire such properties as a result of foreclosure or otherwise, we could become subject to various environmental liabilities. For example, we could be held liable for the cost of cleaning up or otherwise addressing contamination at or from these properties. We could also be held liable to a governmental entity or third-party for property damage, personal injury or other claims relating to any environmental contamination at or from these properties. In addition, we own and operate certain properties that may be subject to similar environmental liability risks. Although we have policies and procedures that are designed to mitigate against certain environmental risks, we may not detect all environmental hazards associated with these properties. If we ever became subject to significant environmental liabilities, our business, financial condition and results of operations could be adversely affected.

The Small to Medium-sized Businesses that we Lend to may have Fewer Resources to Weather Adverse Business Developments, which may Impair a Borrower's Ability to Repay a Loan, and such Impairment could Adversely Affect our Results of Operations and Financial Condition

We focus our business development and marketing strategy primarily on small to medium-sized businesses. Small to medium-sized businesses frequently have smaller market shares than their competition, may be more vulnerable to economic downturns, often need substantial additional capital to expand or compete and may experience substantial volatility in operating results, any of which may impair a borrower's ability to repay a loan. In addition, the success of a small and medium-sized business often depends on the management talents and efforts of one or two people or a small group of people, and the death, disability or resignation of one or more of these people could adversely affect the business and its ability to repay its loan. If general economic conditions negatively affect the California markets in which we operate and small to medium-sized businesses are adversely affected or our borrowers are otherwise affected by adverse business developments, our business, financial condition and results of operations may be negatively affected.

A Lack of Liquidity could Adversely Affect our Operations and Jeopardize our Business, Financial Condition and Results of Operations

Liquidity is essential to our business. We rely on our ability to generate deposits and effectively manage the repayment and maturity schedules of our loans and investment securities, respectively, to ensure that we have adequate liquidity to fund our operations. An inability to raise funds through deposits, borrowings, securities sales, Federal Home Loan Bank advances, the sale of loans and other sources could have a substantial negative effect on our liquidity. Our most important source of funds consists of deposits. Deposit balances can decrease when customers perceive alternative investments as providing a better risk/return tradeoff. If customers move money out of bank deposits and into other investments, we would lose a relatively low-cost source of funds, increasing our funding costs and reducing our net interest income and net income.

Other primary sources of funds consist of cash flows from operations, investment maturities and sales, loan repayments, and proceeds from the issuance and sale of any equity and debt securities to investors. Additional liquidity is provided by the ability to borrow from the Federal Reserve Bank of San Francisco and the Federal Home Loan Bank and our ability to raise brokered deposits. We also may borrow funds from third-party lenders, such as other financial institutions. Our access to funding sources in amounts adequate to finance or capitalize our activities, or on terms that are acceptable

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to us, could be impaired by factors that affect us directly or the bank or non-bank financial services industries or the economy in general, such as disruptions in the financial markets or negative views and expectations about the prospects for the bank or non-bank financial services industries.

Based on past experience, we believe that our deposit accounts are relatively stable sources of funds. If we increase interest rates paid to retain deposits, our earnings may be adversely affected, which could have an adverse effect on our business, financial condition and results of operations.

Any decline in available funding could adversely affect our ability to originate loans, invest in securities, meet our expenses, pay dividends to our shareholders or to fulfill obligations such as repaying our borrowings or meeting deposit withdrawal demands, any of which could have a material adverse impact on our liquidity, business, financial condition and results of operations.

ITEM 1B      UNRESOLVED STAFF COMMENTS

None

ITEM 2     PROPERTIES

We lease our corporate headquarters building in Novato, California, which houses substantial loan production, operations and administration.  We also lease other branch or office facilities within our primary market areas in the cities of Corte Madera, San Rafael, Novato, Sausalito, Mill Valley, Tiburon, Greenbrae, Petaluma, Santa Rosa, Sonoma, Napa, San Francisco, Alameda and Oakland.  We consider our properties to be suitable and adequate for our needs. For additional information on properties, see Notes 4 and 12 to the Consolidated Financial Statements included in Item 8 of this report.

ITEM 3         LEGAL PROCEEDINGS

We may be party to legal actions which arise from time to time as part of the normal course of our business.  We believe, after consultation with legal counsel, that we have meritorious defenses in these actions, and that litigation contingent liability, if any, will not have a material adverse effect on our financial position, results of operations, or cash flows.

We are responsible for our proportionate share of certain litigation indemnifications provided to Visa U.S.A. by its member banks in connection with lawsuits related to anti-trust charges and interchange fees. For further details, see Note 12 to the Consolidated Financial Statements in Item 8 of this report.

ITEM 4      MINE SAFETY DISCLOSURES

Not applicable.

Page-20

PART II     

ITEM 5      MARKET FOR REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Bancorp common stock trades on the NASDAQ Capital Market under the symbol BMRC. At February 28, 2017, 6,129,817 shares of Bancorp's common stock, no par value, were outstanding and held by approximately 2,200 holders of record and beneficial owners. The following table sets forth, for the periods indicated, the range of high and low intra-day sales prices of Bancorp's common stock.

Calendar	2016				2015
Quarter	High		Low		High		Low
1st Quarter	$	54.50	$	45.65	$	52.96	$	48.63
2nd Quarter	$	51.61	$	47.16	$	53.00	$	45.81
3rd Quarter	$	52.47	$	47.25	$	52.89	$	46.81
4th Quarter	$	75.05	$	49.25	$	56.77	$	47.75

The table below shows cash dividends paid to common shareholders on a quarterly basis in the last two fiscal years.

Calendar	2016				2015
Quarter	Per Share		Dollars		Per Share		Dollars
1st Quarter	$	0.25	$	1,518	$	0.22	$	1,307
2nd Quarter	$	0.25	$	1,526	$	0.22	$	1,313
3rd Quarter	$	0.25	$	1,528	$	0.22	$	1,316
4th Quarter	$	0.27	$	1,651	$	0.24	$	1,454
	$	1.02	$	6,223	$	0.90	$	5,390

On January 20, 2017 the Company declared a quarterly cash dividend of 27 cents per share payable February 10, 2017 to shareholders of record at the close of business on February 3, 2017. For additional information regarding our ability to pay dividends, see discussion in Note 8 to the Consolidated Financial Statements, under the heading “Dividends,” in Item 8 of this report.

There were no purchases made by or on behalf of Bancorp or any “affiliated purchaser” (as defined in Rule 10b-18(a)(3) under the Securities Exchange Act of 1934), of the Bancorp's common stock during the fourth quarter of 2016.

On July 2, 2007, Bancorp executed a shareholder rights agreement (“Rights Agreement”) designed to discourage takeovers that involve abusive tactics or do not provide fair value to shareholders, which was amended on June 17, 2016. For further information, see Note 8 to the Consolidated Financial Statements, under the heading “Preferred Stock and Shareholder Rights Plan” in Item 8 of this report.

Securities Authorized for Issuance under Equity Compensation Plans

The following table summarizes information as of December 31, 2016, with respect to equity compensation plans. All plans have been approved by the shareholders.

	(A)	(B)		(C)
	Shares to be issued upon exercise of outstanding options1	Weighted average exercise price of outstanding options		Shares remaining available for future issuance (excluding shares in column A) 2
Equity compensation plans approved by shareholders	181,789	$	41.20	269,592

¹ Represents shares of common stock issuable upon exercise of outstanding options under the Bank of Marin 1999 Stock Option Plan and the Bank of Marin Bancorp 2007 Equity Plan.

² Represents remaining shares of common stock available for future grants under the 2007 Equity Plan and the 2010 Director Stock Plan, excluding shares to be issued upon exercise of outstanding options.

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Five-Year Stock Price Performance Graph

The following graph, compiled by SNL Financial LC of Charlottesville, Virginia, shows a comparison of cumulative total shareholder return on our common stock during the five fiscal years ended December 31, 2016 compared to the Russell 2000 Stock index and the SNL Bank $1B - $5B Index. The comparison assumes $100 was invested on December 31, 2011 in our common stock and all of the dividends were reinvested. The graph represents past performance and should not be considered to be an indication of future performance. In addition, total return performance results vary depending on the length of the performance period.

	2011	2012	2013	2014	2015	2016
Bank of Marin Bancorp (BMRC)	100	101.52	119.69	147.63	152.61	203.45
Russell 2000 Index	100	116.35	161.52	169.43	161.95	196.45
SNL Bank $1B - $5B Index	100	123.31	179.31	187.48	209.86	301.92
Source: SNL Financial LC of Charlottesville, Virginia

Page-22

ITEM 6        SELECTED FINANCIAL DATA

The following data has been derived from the audited consolidated financial statements of Bank of Marin Bancorp. For additional information, refer to Item 7, Management's Discussion and Analysis of Financial Condition and Results of Operations, and Item 8, Financial Statements and Supplementary Data.

	At December 31,
(in thousands)	2016			2015			2014			2013			2012
Selected financial condition data:
Total assets	$	2,023,493		$	2,031,134		$	1,787,130		$	1,805,194		$	1,434,749
Loans, net	1,471,174			1,436,299			1,348,252			1,255,098			1,060,291
Deposits	1,772,700			1,728,226			1,551,619			1,587,102			1,253,289
Borrowings	5,586			72,395			20,185			19,969			15,000
Stockholders' equity	230,563			214,473			200,026			180,887			151,792
	For the Years Ended December 31,
(dollars in thousands, except per share data)	2016			2015			2014			2013			2012
Selected operating data:
Net interest income	$	73,161		$	67,187		$	70,441		$	58,775		$	63,190
(Reversal of) provision for loan losses	(1,850		)	500			750			540			2,900
Non-interest income	9,161			9,193			9,041			8,066			7,112
Non-interest expense 1	47,692			46,949			47,263			44,092			38,694
Net income 1	23,134			18,441			19,771			14,270			17,817
Net income per common share:
Basic	$	3.81		$	3.09		$	3.35		$	2.62		$	3.34
Diluted	$	3.78		$	3.04		$	3.29		$	2.57		$	3.28
	At or for the Years ended December 31,
	2016			2015			2014			2013			2012
Performance and other financial ratios:
Return on average assets	1.15		%	0.98		%	1.08		%	0.96		%	1.24		%
Return on average equity	10.23		%	8.84		%	10.31		%	8.86		%	12.36		%
Tax-equivalent net interest margin	3.91		%	3.83		%	4.13		%	4.20		%	4.74		%
Efficiency ratio	57.93		%	61.47		%	59.46		%	65.97		%	55.04		%
Loan-to-deposit ratio	83.86		%	83.97		%	87.87		%	79.98		%	85.69		%
Cash dividend payout ratio on common stock 2	26.77		%	29.10		%	23.90		%	27.90		%	21.00		%
Cash dividends per common share	$	1.02		$	0.90		$	0.80		$	0.73		$	0.70
Asset quality ratios:
Allowance for loan losses to total loans	1.04		%	1.03		%	1.11		%	1.12		%	1.27		%
Allowance for loan losses to non-performing loans 3	106.5 x			6.88x			1.61x			1.22x			0.77x
Non-performing loans to total loans 3	0.01		%	0.15		%	0.69		%	0.92		%	1.64		%
Capital ratios:
Equity to total assets ratio	11.39		%	10.60		%	11.20		%	10.00		%	10.60		%
Total capital (to risk-weighted assets)	14.32		%	13.37		%	13.94		%	13.21		%	13.71		%
Tier 1 capital (to risk-weighted assets)	13.37		%	12.44		%	12.87		%	12.18		%	12.52		%
Tier 1 capital (to average assets)	11.39		%	10.67		%	10.62		%	10.78		%	10.30		%
Common equity Tier 1 capital (to risk-weighted assets)	13.07		%	12.16		%	N/A			N/A			N/A
Other data:
Number of full service offices	20			20			21			21			17
Full time equivalent employees	262			259			260			281			238

¹ 2014 and 2013 included $746 thousand and $3.7 million, respectively, in merger-related expenses.

² Calculated as dividends on common shares divided by basic net income per common share.

³ Non-performing loans include loans on non-accrual status and loans past due 90 days or more and still accruing interest.

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ITEM 7     MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion of financial condition as of December 31, 2016 and 2015 and results of operations for each of the years in the three-year period ended December 31, 2016 should be read in conjunction with our consolidated financial statements and related notes thereto, included in Part II Item 8 of this report. Average balances, including balances used in calculating certain financial ratios, are generally comprised of average daily balances.

Forward-Looking Statements

The disclosures set forth in this item are qualified by important factors detailed in Part I captioned Forward-Looking Statements and Item 1A captioned Risk Factors of this report and other cautionary statements set forth elsewhere in the report.

Page-24

Executive Summary

Annual earnings increased 25.4% in 2016 to $23.1 million compared to $18.4 million in 2015. Diluted earnings of $3.78 per share for the year ended December 31, 2016 compared to $3.04 per share in the same period of 2015.

The following are highlights of operating and financial performance for the year ended December 31, 2016:

• Record earnings resulted in a return on assets ("ROA") of 1.15% for the year ended December 31, 2016, and a return on equity ("ROE") of 10.23%. Earnings in 2016 benefited from higher earning assets, a large loan recovery in the third quarter that resulted in interest recoveries of $1.4 million and reversal of loan loss reserve of $1.6 million and a $1.0 million increase in gains on payoffs of purchased credit impaired loans.

• Credit quality is very strong and continues to improve. Non-accrual loans continued to trend downward, and decreased to $145.0 thousand at December 31, 2016 from $2.2 million at December 31, 2015, and as a percentage of total loans declined to 0.01% from 0.15% a year ago. Due to our current low level of non-performing loans, going forward we do not anticipate any significant recoveries on problem loans similar to the ones that boosted our earnings this year.

• Our loan to deposit ratio totaled 84% at December 31, 2016. Loans increased by $35.4 million for the year and totaled $1,486.6 million at December 31, 2016 compared to $1,451.2 million at December 31, 2015. New loan volume of approximately $192 million in 2016 resulted primarily from originations of investor commercial real estate, owner occupied commercial real estate and commercial and industrial loans. Loan payoffs of approximately $158 million for the year were down $11 million from 2015 and primarily the result of property sales, cash repayments and successful completion of construction projects.

• Deposits grew $44.5 million, or 2.6%, to $1,772.7 million at December 31, 2016 from $1,728.2 million at December 31, 2015. Non-interest bearing deposits totaled $817.0 million at December 31, 2016, an increase of $46.9 million, or 6.1%, when compared to December 31, 2015. Non-interest bearing deposits represented 46.1% of total deposits as of December 31, 2016 compared to 44.6% at December 31, 2015.

• Net interest income totaled $73.2 million and $67.2 million in 2016 and 2015, respectively. The increase of $6.0 million in 2016 is primarily due to an increase of $120 million in average earning assets, a $1.4 million interest recovery, and greater gains on payoffs and accretion on purchased loans, partially offset by lower average rates on loans and investment securities and prepayment fees of $312 thousand on a Federal Home Loan Bank ("FHLB") advance in the second quarter of 2016. The tax equivalent net interest margin increased to 3.91% in 2016 compared to 3.83% in 2015 for the same reasons.

• Our efficiency ratio (the ratio of non-interest expense divided by the sum of net interest income and non-interest income) was 57.93% and 61.47% in 2016 and 2015, respectively. Our expense discipline allowed for a healthy efficiency ratio, notwithstanding the challenging interest rate, competitive and regulatory environments.

• All of our capital ratios are well above current regulatory requirements for a "well-capitalized" institution. The total risk-based capital ratio for Bancorp was 14.3% at December 31, 2016 compared to 13.4% last year.

Looking forward into 2017, we believe we are well-positioned to grow our loans and deposits with strong loan and deposit pipelines at the end of 2016 despite many market uncertainties and a general expectation of 10% annual loan runoff.  We expect to be able to weather economic uncertainties, including but not limited to the interest rate environment and corporate tax rates.

• We have ample liquidity and capital to support organic growth and acquisitions in coming years.

• Acquisitions remain a component of our strategic plan. The Bay Area is an economically attractive area and we intend to expand our footprint through organic growth (including opening new branches and commercial banking offices) and strategic acquisitions. As we build our team and add strategic client-facing staff, we continue our expense control measures to remain an efficient bank.

• Our disciplined credit culture and relationship-focused banking continue to be critical components of our success.

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RESULTS OF OPERATIONS

Net Interest Income

Net interest income is the difference between the interest earned on loans, investments and other interest-earning assets and the interest expense incurred on deposits and other interest-bearing liabilities. Net interest income is affected by changes in general market interest rates and by changes in the amounts and composition of interest-earning assets and interest-bearing liabilities. Interest rate changes can create fluctuations in net interest income and/or margin due to an imbalance in the timing of repricing or maturity of assets or liabilities. We manage interest rate risk exposure with the goal of minimizing the effect of interest rate volatility on net interest income.

Net interest margin is expressed as net interest income divided by average interest-earning assets. Net interest rate spread is the difference between the average rate earned on total interest-earning assets and the average rate incurred on total interest-bearing liabilities. Both of these measures are reported on a taxable-equivalent basis. Net interest margin is the higher of the two because it reflects interest income earned on assets funded with non-interest-bearing sources of funds, which include demand deposits and stockholders’ equity.

The following table, Average Statements of Condition and Analysis of Net Interest Income, compares interest income, average interest-earning assets, interest expense, and average interest-bearing liabilities for the periods presented. The table also presents net interest income, net interest margin and net interest rate spread for the years indicated.

Table 1 Average Statements of Condition and Analysis of Net Interest Income
		Year ended						Year ended						Year ended
		December 31, 2016						December 31, 2015						December 31, 2014
				Interest						Interest						Interest
		Average		Income/		Yield/		Average		Income/		Yield/		Average		Income/		Yield/
(dollars in thousands; unaudited)		Balance		Expense		Rate		Balance		Expense		Rate		Balance		Expense		Rate
Assets
	Interest-bearing due from banks 1	$	38,314	$	209	0.54	%	$	52,004	$	135	0.26	%	$	63,150	$	161	0.25	%
	Investment securities 2, 3	406,640		8,671		2.13	%	370,730		8,255		2.23	%	341,787		8,385		2.45	%
	Loans 1, 3, 4	1,452,357		68,794		4.66	%	1,354,564		62,953		4.58	%	1,317,794		65,856		4.93	%
	Total interest-earning assets 1	1,897,311		77,674		4.03	%	1,777,298		71,343		3.96	%	1,722,731		74,402		4.26	%
	Cash and non-interest-bearing due from banks	42,150						44,543						44,452
	Bank premises and equipment, net	8,836						9,705						9,290
	Interest receivable and other assets, net	59,989						58,201						56,592
Total assets		$	2,008,286					$	1,889,747					$	1,833,065
Liabilities and Stockholders' Equity
	Interest-bearing transaction accounts	$	94,252	$	109	0.12	%	$	95,662	$	115	0.12	%	$	101,133	$	99	0.10	%
	Savings accounts	151,214		58		0.04	%	134,997		50		0.04	%	125,169		46		0.04	%
	Money market accounts	524,989		445		0.08	%	505,280		495		0.10	%	507,055		550		0.11	%
	Time accounts, including CDARS	158,878		742		0.47	%	156,316		853		0.55	%	155,229		917		0.59	%
	Overnight borrowings 1	5,383		23		0.42	%	784		3		0.38	%	4		—		—	%
	FHLB fixed-rate advances 1	6,803		456		6.59	%	15,000		315		2.07	%	15,000		315		2.07	%
	Subordinated debentures 1	5,493		436		7.80	%	5,288		420		7.94	%	5,070		422		8.36	%
	Total interest-bearing liabilities	947,012		2,269		0.24	%	913,327		2,251		0.25	%	908,660		2,349		0.26	%
	Demand accounts	819,916						753,038						717,738
	Interest payable and other liabilities	15,142						14,856						14,934
	Stockholders' equity	226,216						208,526						191,733
Total liabilities & stockholders' equity		$	2,008,286					$	1,889,747					$	1,833,065
Tax-equivalent net interest income/margin 1				$	75,405	3.91	%			$	69,092	3.83	%			$	72,053	4.13	%
Reported net interest income/margin 1				$	73,161	3.79	%			$	67,187	3.73	%			$	70,441	4.03	%
Tax-equivalent net interest rate spread						3.79	%					3.71	%					4.00	%
1 Interest income/expense is divided by actual number of days in the period times 360 days to correspond to stated interest rate terms, where applicable.
2 Yields on available-for-sale securities are calculated based on amortized cost balances rather than fair value, as changes in fair value are reflected as a component of stockholders' equity. Investment security interest is earned on 30/360 day basis monthly.
3 Yields and interest income on tax-exempt securities and loans are presented on a taxable-equivalent basis using the Federal statutory rate of 35 percent.
4 Average balances on loans outstanding include non-performing loans. The amortized portion of net loan origination fees is included in interest income on loans, representing an adjustment to the yield.

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Table 2Analysis of Changes in Net Interest Income

The following table presents the effects of changes in average balances (volume) or changes in average rates on net interest income for the years indicated. Volume variances are equal to the increase or decrease in average balances multiplied by prior period rates. Rate variances are equal to the increase or decrease in rates multiplied by prior period average balances. Mix variances are attributable to the change in yields or rates multiplied by the change in average balances.

	2016 compared to 2015												2015 compared to 2014
(in thousands, unaudited)	Volume			Yield/Rate			Mix			Total			Volume			Yield/Rate			Mix			Total
Interest-bearing due from banks	$	(36	)	$	149		$	(39	)	$	74		$	(28	)	$	3		$	(1	)	$	(26	)
Investment securities 1	800			(350		)	(34		)	416			710			(774		)	(66		)	(130		)
Loans 1	4,545			1,209			87			5,841			1,838			(4,612		)	(129		)	(2,903		)
Total interest-earning assets	5,309			1,008			14			6,331			2,520			(5,383		)	(196		)	(3,059		)
Interest-bearing transaction accounts	(2		)	(4		)	—			(6		)	(5		)	23			(1		)	17
Savings accounts	6			2			—			8			4			—			—			4
Money market accounts	19			(67		)	(3		)	(51		)	(2		)	(53		)	—			(55		)
Time accounts, including CDARS	14			(123		)	(2		)	(111		)	6			(70		)	—			(64		)
FHLB borrowings and overnight borrowings	(155		)	690			(374		)	161			—			—			3			3
Subordinated debentures	17			—			—			17			18			(20		)	(1		)	(3		)
Total interest-bearing liabilities	(101		)	498			(379		)	18			21			(120		)	1			(98		)
	$	5,410		$	510		$	393		$	6,313		$	2,499		$	(5,263	)	$	(197	)	$	(2,961	)
1 Yields and interest income on tax-exempt securities and loans are presented on a taxable-equivalent basis using the federal statutory rate of 35%.

2016 Compared with 2015

The tax-equivalent net interest margin was 3.91% in 2016, compared to 3.83% in 2015.  The increase of eight basis points was primarily due to a $1.4 million interest recovery upon payoff of a problem credit. Other factors that affected the net interest margin during 2016 included greater gains on payoffs and accretion on purchased loans and a shift to higher yielding earning assets, partially offset by lower average rates on loans and investment securities and prepayment fees of $312 thousand on FHLB borrowings. The net interest spread increased eight basis points over the same period for the same reasons.

The yield on average interest-earning assets increased seven basis points in 2016 compared to 2015 for the reasons listed above. The loan portfolio as a percentage of average interest-earning assets, increased to 76.6% in 2016, from 76.2% in 2015. The investment securities were 21.4% and 20.9% of average interest-earning assets in 2016 and 2015, respectively. Total average interest-earning assets increased $120.0 million, or 6.8%, in 2016 compared to 2015.

2015 Compared with 2014

The tax-equivalent net interest margin was 3.83% in 2015, compared to 4.13% in 2014.  The decrease of thirty basis points was primarily due to a lower yield on interest-earning assets, mainly relating to a decrease in accretion and gains on payoffs of acquired loans, new loans and investment securities yielding lower rates and downward repricing on renewed loans. The net interest spread decreased twenty nine basis points over the same period for the same reasons.

The yield on average interest-earning assets decreased thirty basis points in 2015 compared to 2014 for the reasons listed above. The loan portfolio as a percentage of average interest-earning assets, decreased to 76.2% in 2015, from 76.5% in 2014. Investment securities were 20.9% and 19.8% of average interest-earning assets in 2015 and 2014, respectively. Total average interest-earning assets increased $54.6 million, or 3.2%, in 2015 compared to 2014.

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Market Interest Rates

Market interest rates are, in part, based on the target federal funds interest rate (the interest rate banks charge each other for short-term borrowings) regulated by the Federal Open Market Committee ("FOMC"). In December 2015 and December 2016, the FOMC raised the target federal funds rate by 25 basis points to a range of 0.25% to 0.50% and 0.50% to 0.75%, respectively. The increase in 2016 was only the second rate hike since 2008. The prolonged low interest rate environment has negatively affected our net interest margin and yields on our earning assets and resulted in significant net interest margin compression over the last several years. Our net interest margin may compress due to repricing on loans and securities if the prevailing market interest rates do not increase. If interest rates rise, we anticipate that net interest income will increase.

Impact of Acquired Loans on Net Interest Margin

Early payoffs or prepayments of our acquired loans with significant unamortized purchase discount/premium could result in volatility in our net interest margin. Accretions and gains on payoffs of purchased loans are recorded in interest income. The positive affect on our net interest margin during the past three years was as follows:

	Years ended December 31,
	2016			2015			2014
(dollars in thousands; unaudited)	Dollar Amount		Basis point affect on net interest margin	Dollar Amount		Basis point affect on net interest margin	Dollar Amount		Basis point affect on net interest margin
Accretion on PCI loans	$	364	2 bps	$	495	3 bps	$	614	4 bps
Accretion on non-PCI loans	$	1,411	7 bps	$	1,389	8 bps	$	3,292	19 bps
Gains on payoffs of PCI loans	$	1,027	5 bps	$	44	0 bps	$	622	4 bps

Critical Accounting Policies and Estimates

Critical accounting policies are those that are both very important to the portrayal of our financial condition and results of operations and require Management's most difficult, subjective, or complex judgments, often as a result of the need to make estimates about the effect of matters that are inherently uncertain and imprecise.

Management has determined the following four accounting policies to be critical:

Allowance for Loan Losses: For information regarding our ALLL methodology, the related provision for loan losses, risks related to asset quality and lending activity, see Item 1A - Risk Factors, Item 7 - Management's Discussion and Analysis of Financial Condition and Results of Operations, and Note 1 - Summary of Significant Accounting Policies and Note 3 - Loans and Allowance for Loan Losses in Item 8 - Financial Statements and Supplementary Data of this Form 10-K.

Other-than-temporary Impairment of Investment Securities: For information regarding our investment securities, investment activity, and related risks, see Item 1A - Risk Factors, Item 7 - Management's Discussion and Analysis of Financial Condition and Results of Operations, Note 1 - Summary of Significant Accounting Policies and Note 2 - Investment Securities in Item 8 - Financial Statements and Supplementary Data of this Form 10-K.

Accounting for Income Taxes: For information on our tax assets and liabilities, and related provision for income taxes, see Note 1 - Summary of Significant Accounting Policies and Note 11 - Income Taxes in Item 8 - Financial Statements and Supplementary Data of this Form 10-K.

Fair Value Measurements: For information on our use of fair value measurements and our related valuation methodologies, see Note 1 - Summary of Significant Accounting Policies and Note 9 - Fair Value of Assets and Liabilities in Item 8 - Financial Statements and Supplementary Data of this Form 10-K.

Page-28

Provision for Loan Losses

Management assesses the adequacy of the allowance for loan losses on a quarterly basis based on several factors including growth of the loan portfolio, analysis of probable losses in the portfolio, historical loss experience and the current economic climate.  Actual losses on loans are charged against the allowance, and the allowance is increased by loss recoveries and provisions for loan losses charged to expense.  For further discussion, see Note 1 to the Consolidated Financial Statements in Item 8 of this report.

A $1.9 million reversal of the provision for loan losses was recorded in 2016, primarily related to a $2.6 million recovery of a commercial real estate credit and an improvement in credit quality of the portfolio. Provision for loan losses totaled $500 thousand in 2015 and $750 thousand in 2014. The allowance for loan losses totaled 1.04%, 1.03% and 1.11% of loans at December 31, 2016, 2015 and 2014, respectively. Net recoveries of $2.3 million in 2016 primarily related to the resolution of a problem commercial real estate credit (discussed previously), compared to net charge-offs of $600 thousand in the prior year primarily relating to a land development loan sold in 2015. Net recoveries totaled $125 thousand in 2014. See the section captioned “Allowance for Loan Losses” below for further analysis of the provision for loan losses.

Non-interest Income

The table below details the components of non-interest income.

Table 3 Components of Non-Interest Income
	Years ended						2016 compared to 2015					2015 compared to 2014
	December 31,						Amount			Percent		Amount			Percent
(dollars in thousands; unaudited)	2016		2015		2014		Increase (Decrease)			Increase (Decrease)		Increase (Decrease)			Increase (Decrease)
Service charges on deposit accounts	$	1,789	$	1,979	$	2,167	$	(190	)	(9.6	)%	$	(188	)	(8.7	)%
Wealth Management and Trust Services	2,090		2,391		2,309		(301		)	(12.6	)%	82			3.6	%
Debit card interchange fees	1,503		1,445		1,378		58			4.0	%	67			4.9	%
Merchant interchange fees	449		545		803		(96		)	(17.6	)%	(258		)	(32.1	)%
Earnings on bank-owned life insurance	844		814		841		30			3.7	%	(27		)	(3.2	)%
Dividends on FHLB stock	1,153		1,003		563		150			15.0	%	440			78.2	%
Gains on investment securities, net	425		79		80		346			438.0	%	(1		)	(1.3	)%
Other income	908		937		900		(29		)	(3.1	)%	37			4.1	%
Total non-interest income	$	9,161	$	9,193	$	9,041	$	(32	)	(0.3	)%	$	152		1.7	%

2016 Compared with 2015

Non-interest income totaled $9.2 million in both 2016 and 2015, respectively. Non-interest income in 2016 included higher gains on the sale of investment securities, and higher dividends on FHLB stock, as we purchased $1.8 million in capital stock and received a $347 thousand special dividend, compared to a $305 thousand special dividend in 2015. These increases were offset by lower service charges on business analysis accounts due to higher average deposit balances and lower wealth management and trust related fees due to the settlement of several large estates in 2015 and early 2016. Additionally, merchant interchange fees continue to trend down as we transition our merchant customers to a new service provider with different contract arrangements.

2015 Compared with 2014

Non-interest income totaled $9.2 million and $9.0 million in 2015 and 2014, respectively. The increase compared to the prior year primarily relates to the increase in dividends on FHLB stock, due to a $305 thousand special dividend from the FHLB and higher annualized dividend rates in 2015. The increase was partially offset by lower merchant interchange fees due to decreased transaction volume and lower service charges on deposit accounts compared to 2014.

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Non-interest Expense

The table below details the components of non-interest expense.

Table 4 Components of Non-Interest Expense
	Years ended							2016 compared to 2015					2015 compared to 2014
	December 31,							Amount			Percent		Amount			Percent
(dollars in thousands; unaudited)	2016		2015			2014		Increase (Decrease)			Increase (Decrease)		Increase (Decrease)			Increase (Decrease)
Salaries and related benefits	$	26,663	$	25,764		$	25,005	$	899		3.5	%	$	759		3.0	%
Occupancy and equipment	5,081		5,498			5,470		(417		)	(7.6	)%	28			0.5	%
Depreciation and amortization	1,822		1,968			1,585		(146		)	(7.4	)%	383			24.2	%
FDIC insurance	825		997			1,032		(172		)	(17.3	)%	(35		)	(3.4	)%
Data processing	3,625		3,318			3,665		307			9.3	%	(347		)	(9.5	)%
Professional services	2,044		2,121			2,230		(77		)	(3.6	)%	(109		)	(4.9	)%
Directors' expense	553		826			628		(273		)	(33.1	)%	198			31.5	%
Information technology	862		736			675		126			17.1	%	61			9.0	%
Provision for (reversal of) losses on off-balance sheet commitments	150		(263		)	334		413			(157.0	)%	(597		)	(178.7	)%
Other non-interest expense:
Advertising	565		334			400		231			69.2	%	(66		)	(16.5	)%
Amortization of core deposit intangible	533		619			771		(86		)	(13.9	)%	(152		)	(19.7	)%
Other expense	4,969		5,031			5,468		(62		)	(1.2	)%	(437		)	(8.0	)%
Total other non-interest expense	6,067		5,984			6,639		83			1.4	%	(655		)	(9.9	)%
Total non-interest expense	$	47,692	$	46,949		$	47,263	$	743		1.6	%	$	(314	)	(0.7	)%

2016 Compared with 2015

Non-interest expense increased by $743 thousand to $47.7 million in 2016. The increase primarily relates to higher salaries and benefits due to annual merit increases, higher employee insurance and stock-based compensation expense, partially offset by the effect of job vacancies during the year. The number of average FTE employees totaled 258 in 2016 and 260 in 2015. The increase also relates to a higher reserve for losses on off-balance sheet commitments, as unused commitments increased in 2016, and 2015 included a one-time adjustment (reversal) related to a refinement in methodology (see discussion below). Data processing costs also increased due to higher transaction volume and the addition of new products and services.

These increases were partially offset by a decrease in occupancy and equipment expenses from cost savings related to the relocation of offices in 2016 and lease accounting adjustments recorded in 2015, lower director expense resulting from fewer board members, as well as lower FDIC assessment expense due to lower assessment rates.

2015 Compared with 2014

Non-interest expense decreased by $314 thousand to $46.9 million in 2015. The decrease primarily relates to the reversal of provision for losses on off-balance sheet commitments that was mainly due to a refinement in methodology used in the calculation of the loss reserve on these commitments by incorporating rolling four-quarter and average commitment usage, as well as eliminating outlier data for small commitment categories. Management believes this refined method reflects a better estimate of its credit exposure for unused loan commitments. The decrease also includes a decline in data processing expenses from bank acquisition-related expenses totaling $442 thousand in the first quarter of 2014 related to the system conversion.

The decrease in non-interest expense was partially offset by higher salaries and related benefits mainly due to higher employee benefits and lower deferred loan origination costs (partially off-set by lower salaries, commissions and associated payroll taxes in 2015 mainly related to the absence of acquisition-related personnel costs). The number of average FTE employees totaled 260 in 2015and 266 in 2014. Depreciation and amortization expense also increased primarily due to non-recurring accounting adjustments in 2015.

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Provision for Income Taxes

The provision for income taxes totaled $13.3 million at an effective tax rate of 36.6% in 2016, compared to $10.5 million at an effective tax rate of 36.3% in 2015 and $11.7 million at an effective tax rate of 37.2% in 2014. The increase in both the provision for income taxes and the effective tax rate from the prior year is primarily due to the higher amount of pre-tax income with the effect of diluting the tax benefits from tax-exempt earnings. These provisions reflect accruals for taxes at the applicable rates for federal income tax and California franchise tax based upon reported pre-tax income, and adjusted for the effects of all permanent differences between income for tax and financial reporting purposes (such as earnings on qualified municipal securities, bank owned life insurance ("BOLI") and certain tax-exempt loans). Therefore, there are fluctuations in the effective rate from period to period based on the relationship of net permanent differences to income before tax.

Additionally, effective tax rates reflect the adoption of the amended FASB Accounting Standards Codification ("ASC") Topic 323-740 Investments—Equity Method and Joint Ventures—Income Taxes, beginning in 2014. In accordance with the proportional amortization methodology in accounting for low income tax credit investments, the tax credit investment amortization expense is presented as a component of provision for income taxes, as discussed in Note 2 to the Consolidated Financial Statements in Item 8 of this report.

We file a consolidated return in the U.S. Federal tax jurisdiction and a combined return in the State of California tax jurisdiction. There were no ongoing federal or state income tax examinations at the issuance of this report. In June 2015, the State of California completed its examination of the 2011 and 2012 corporate income tax returns, resulting in a minor adjustment. At December 31, 2016 and 2015, neither the Bank nor Bancorp had accruals for interest and penalties related to unrecognized tax benefits.

Although we believe our assumptions, judgments and estimates are reasonable, changes in tax laws could significantly impact the amounts provided for income taxes in our consolidated financial statements. In general, a reduction in the federal statutory tax rate would be a benefit to our future ongoing net income. However, upon the year of tax rate reduction, there would be a one-time write down to our deferred tax assets.

FINANCIAL CONDITION

The balance sheet declined $7.6 million between December 31, 2015 and December 31, 2016. Increases of $44.5 million in deposits and $35.4 million in loans were more than offset by the sale of investment securities and repayment of $67.0 million in FHLB borrowings.

A comparison of average balances between 2015 and 2016 shows healthy trends in loan and deposit growth of $97.8 million and $104.0 million, respectively.

Investment Securities

We maintain an investment securities portfolio to provide liquidity and to generate earnings on funds that have not been loaned to customers. Management determines the maturities and types of securities to be purchased based on liquidity, the interest rate risk position, and the desire to attain a reasonable investment yield balanced with risk exposure. Table 5 shows the composition of the debt securities portfolio by expected maturity at December 31, 2016 and 2015. Expected maturities differ from contractual maturities because the issuers of the securities may have the right to call or prepay obligations with or without call or prepayment penalties. We estimate and update expected maturity dates regularly based on current and historical prepayment speeds. The weighted average maturity of the portfolio at December 31, 2016 and 2015 was approximately four years.

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Table 5 Investment Securities

December 31, 2016	Within 1 Year				1-5 Years				5-10 Years				After 10 Years				Total
(dollars in thousands; unaudited)	AmortizedCost1		Average Yield2		AmortizedCost1		Average Yield2		AmortizedCost1		Average Yield2		AmortizedCost1		Average Yield2		AmortizedCost1		Fair Value		Average Yield2
Held-to-maturity:
State and municipal	$	9,954	3.18	%	$	18,925	5.33	%	$	1,977	6.85	%	$	—	—	%	$	30,856	$	31,544	4.73	%
Corporate bonds	3,519		1.07		—		—		—		—		—		—		3,519		3,518		1.07
MBS/CMOs issued by U.S. government agencies	—		—		4,051		3.50		6,012		3.32		—		—		10,063		10,035		3.39
Total held-to-maturity	13,473		2.63		22,976		5.01		7,989		4.19		—		—		44,438		45,097		4.14
Available-for-sale:
MBS/CMOs issued by U.S. government agencies	11,609		1.65		143,216		2.05		103,260		1.92		—		—		258,085		254,041		1.98
State and municipal	4,027		1.93		31,929		2.35		41,980		3.07		1,369		5.46		79,305		77,701		2.76
Debentures of government sponsored agencies	5,000		1.00		30,486		1.13		—		—		—		—		35,486		35,403		1.11
Privately issued CMOs	265		1.62		154		3.01		—		—		—		—		419		419		2.13
Corporate bonds	—		—		3,965		1.97		994		1.99		—		—		4,959		5,016		1.97
Total available-for-sale	20,901		1.55		209,750		1.97		146,234		2.25		1,369		2.31		378,254		372,580		2.06
Total	$	34,374	1.97	%	$	232,726	2.28	%	$	154,223	2.35	%	$	1,369	2.31	%	$	422,692	$	417,677	2.28	%
December 31, 2015	Within 1 Year				1-5 Years				5-10 Years				After 10 Years				Total
(dollars in thousands; unaudited)	AmortizedCost1		Average Yield2		AmortizedCost1		Average Yield2		AmortizedCost1		Average Yield2		AmortizedCost1		Average Yield2		AmortizedCost1		Fair Value		Average Yield2
Held-to-maturity:
State and municipal	$	7,795	2.82	%	$	28,966	4.42	%	$	6,158	6.40	%	$	—	—	%	$	42,919	$	44,146	4.41	%
Corporate bonds	11,534		2.16		3,538		1.07		—		—		—		—		15,072		15,098		1.90
MBS/CMOs issued by U.S. government agencies	—		—		2,240		4.65		9,406		1.80		—		—		11,646		11,810		2.35
Total held-to-maturity	19,329		2.43		34,744		4.09		15,564		3.62		—		—		69,637		71,054		3.52
Available-for-sale:
MBS/CMOs issued by U.S. government agencies	4,262		2.93		157,982		2.04		27,459		2.41		—		—		189,703		190,093		2.11
State and municipal	4,673		2.24		32,406		2.25		17,755		3.58		2,276		4.84		57,110		57,673		2.77
Debentures of government sponsored agencies	19,107		1.00		142,583		1.36		—		—		—		—		161,690		160,892		1.32
Privately issued CMOs	—		—		980		1.30		2,980		2.20		—		—		3,960		4,150		1.98
Corporate bonds	—		—		3,954		1.40		993		1.43		—		—		4,947		4,979		1.41
Total available-for-sale	28,042		1.50		337,905		1.76		49,187		2.80		2,276		4.84		417,410		417,787		1.88
Total	$	47,371	1.88	%	$	372,649	1.98	%	$	64,751	3.00	%	$	2,276	4.84	%	$	487,047	$	488,841	2.12	%

¹ Book value reflects cost, adjusted for accumulated amortization and accretion.

² Weighted average yields on tax-exempt basis and weighted average calculation is based on amortized cost of securities.

The amortized cost of our investment securities portfolio decreased $64.4 million or 13.2% during 2016. $163.8 million in securities were purchased in 2016. $2.4 million of the purchased securities were designated as held-to-maturity, and $161.4 million were designated as available-for-sale to provide flexibility for liquidity and interest rate risk management. These purchases were partially offset by $155.4 million of paydowns, calls and maturities, and $69.5 million of sales during 2016 to repay $67.0 million of FHLB borrowings.

During 2016, we purchased $5.0 million in agency debentures issued by FNMA, $103.3 million in mortgage pass-through securities, $28.0 million in municipal securities, and $27.5 million in collateralized mortgage obligations ("CMOs"). We consider agency debentures, mortgage-backed securities, and CMOs issued by U.S. government sponsored entities to have low credit risk as they carry the credit support of the U.S. federal government. We also invest in municipalities with sound credit fundamentals. The debentures and MBS issued by the U.S. government sponsored agencies, state and municipal securities and corporate bonds, made up 71.8%, 26.1% and 2.0% of the portfolio at December 31, 2016, compared to 74.5%, 20.5% and 4.1%, respectively at December 31, 2015. See the discussion in the section captioned “Securities May Lose Value due to Credit Quality of the Issuers” in Item 1A Risk Factors above.

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Any investment securities in our portfolio that may be backed by sub-prime or Alt-A mortgages, which account for approximately 0.1% of our total securities portfolio, relate to privately issued CMOs. See Note 2 to the Consolidated Financial Statements in Item 8, for more information on investment securities.

At December 31, 2016, distribution of our investment in obligations of state and political subdivisions was as follows:

	December 31, 2016						December 31, 2015
(dollars in thousands; unaudited)	Amortized Cost		Fair Value		% of state and municipal securities		Amortized Cost		Fair Value		% of state and municipal securities
Within California:
General obligation bonds	$	15,777	$	15,660	14.3	%	$	18,642	$	18,830	18.6	%
Revenue bonds	10,895		11,127		9.9		15,453		15,767		15.5
Tax allocation bonds	4,043		4,178		3.7		5,411		5,603		5.4
Total within California	30,715		30,965		27.9		39,506		40,200		39.5
Outside California:
General obligation bonds	71,534		70,376		64.9		51,920		52,990		51.9
Revenue bonds	7,913		7,904		7.2		8,603		8,629		8.6
Total outside California	79,447		78,280		72.1		60,523		61,619		60.5
Total obligations of state and political subdivisions	$	110,162	$	109,245	100.0	%	$	100,029	$	101,819	100.0	%

The portion of the portfolio outside the state of California is distributed among 20 states. The largest concentrations outside California are in Washington (11.9%), Minnesota (11.8%), and Texas (11.4%). Revenue bonds, both within and outside California, primarily consisted of bonds relating to essential services (such as roads, public transportation and utilities).

Investments in states, municipalities and political subdivisions are subject to an initial pre-purchase credit assessment and ongoing monitoring. Key considerations include:

• The soundness of a municipality’s budgetary position and stability of its tax revenues

• Debt profile and level of unfunded liabilities, diversity of revenue sources, taxing authority of the issuer

• Local demographics/economics including unemployment data, largest local taxpayers and employers, income indices and home values

• For revenue bonds, the source and strength of revenue for municipal authorities including obligors' financial condition and reserve levels, annual debt service and debt coverage ratio, and credit enhancement (such as insurer’s strength)

• Credit ratings by major credit rating agencies.

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Loans

Table 6 Loans Outstanding by Type at December 31

(in thousands; unaudited)	2016			2015			2014			2013			2012
Commercial loans	$	218,615		$	219,452		$	210,223		$	183,291		$	176,431
Real estate
Commercial owner-occupied	247,713			242,309			230,605			241,113			196,406
Commercial investor	724,228			715,879			673,499			625,019			509,006
Construction	74,809			65,495			48,413			31,577			30,665
Home equity	117,207			112,300			110,788			98,469			93,237
Other residential 1	78,549			73,154			73,035			72,634			49,432
Installment and other consumer loans	25,495			22,639			16,788			17,219			18,775
Total loans	1,486,616			1,451,228			1,363,351			1,269,322			1,073,952
Allowance for loan losses	(15,442		)	(14,999		)	(15,099		)	(14,224		)	(13,661		)
Total net loans	$	1,471,174		$	1,436,229		$	1,348,252		$	1,255,098		$	1,060,291
1 Our residential loan portfolio includes no sub-prime loans, nor is it our normal practice to underwrite loans commonly referred to as "Alt-A mortgages", the characteristics of which are loans lacking full documentation, borrowers having low FICO scores or collateral compositions reflecting high loan-to-value ratios. Substantially all of our residential loans are indexed to Treasury Constant Maturity Rates and have provisions to reset five years after their origination dates.

We continued to strengthen market presence throughout our footprint in 2016. New loan volume totaled approximately $192 million in 2016, compared to approximately $252 million in 2015. Approximately 85% of our outstanding loans were secured by real estate at both December 31, 2016 and 2015. Also see Item 1A, Risk Factors, regarding our loan concentration risk.

The following table summarizes our commercial real estate loan portfolio by the geographic location in which the property is located as of December 31, 2016 and 2015.

Table 7 Commercial Real Estate Loans Outstanding by Geographic Location

	December 31, 2016				December 31, 2015
(dollars in thousands; unaudited)	Amount		% of Commercial real estate loans		Amount		% of Commercial real estate loans
Marin	$	310,286	31.9	%	$	317,035	33.1	%
Sonoma	155,066		16.0		132,592		13.8
San Francisco	143,975		14.8		130,164		13.6
Alameda	121,467		12.5		135,835		14.2
Napa	79,872		8.2		76,409		8.0
Contra Costa	41,808		4.3		40,084		4.2
San Mateo	22,360		2.3		21,756		2.3
El Dorado	14,146		1.5		14,414		1.5
Sacramento	11,083		1.1		17,592		1.8
Other	71,878		7.4		72,307		7.5
Total	$	971,941	100.0	%	$	958,188	100.0	%

Commercial real estate loans increased by $13.8 million in 2016 and $54.1 million in 2015. Of the commercial real estate loans at December 31, 2016 and 2015, 75% were non-owner occupied and 25% were owner occupied. Almost all of our commercial real estate loan portfolio is comprised of term loans for which the primary source of repayment is the operating cash flow from the leasing activities of the real estate collateral. Originated loans are subject to our conservative credit underwriting standards and both the acquired and originated loans are actively managed.

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The following table shows an analysis of construction loans by type and location as of December 31, 2016 and 2015.

Table 8 Construction Loans Outstanding by Type and Geographic Location

(dollars in thousands; unaudited)	December 31, 2016				December 31, 2015
Construction loans by type	Amount		% of Construction Loans		Amount		% of Construction Loans
1-4 Single family residential	$	41,106	55.0	%	$	39,444	60.2	%
Commercial real estate	19,861		26.6		17,962		27.4
Apartments and multifamily	9,088		12.1		3,127		4.8
Land - improved	3,245		4.3		3,224		4.9
Land - unimproved	1,509		2.0		1,738		2.7
Total	$	74,809	100.0	%	$	65,495	100.0	%
(dollars in thousands; unaudited)	December 31, 2016				December 31, 2015
Construction loans by geographic location	Amount		% of Construction Loans		Amount		% of Construction Loans
San Francisco	$	31,256	41.8	%	$	26,120	39.9	%
Marin	19,354		25.9		15,921		24.3
Alameda	14,905		19.9		1,305		2.0
San Mateo	—		—		9,327		14.2
Napa	3,363		4.5		7,749		11.8
Riverside	3,224		4.3		3,224		4.9
Sonoma	2,609		3.5		1,725		2.6
Other	98		0.1		124		0.3
Total	$	74,809	100.0	%	$	65,495	100.0	%

Construction loans increased by $9.3 million in 2016 and $17.1 million in 2015. The increase in 2016 was due to draws on both new and existing single family development construction projects as well as on mixed-use commercial and owner-occupied construction projects.  The increases in construction fundings were partially offset by payoffs related to completed construction projects. The increase in 2015 was due to substantial draws on existing single family development construction projects as they approached completion and origination of new construction loans. The improving economy resulted in a number of new financing opportunities for existing customers who had successfully completed construction projects in the past.

At December 31, 2016 and 2015, respectively, approximately 2.0% and 1.5% of our total loans contained an interest-only feature as part of the loan terms. All of these loans were current with their payments as of December 31, 2016. Except for two loans to one borrowing relationship totaling $7.0 million as of December 31, 2016 and 2015, all were considered to have low credit risk (graded "Pass").

As of December 31, 2016 and 2015, approximately $48.7 million and $43.4 million, respectively, of our loans had interest reserves, all of which were construction loans. When we determine a loan is impaired before the interest reserve has been depleted, the interest funded by the interest reserve is applied against loan principal. As of December 31, 2016 and 2015, no loans having interest reserve balances were determined to be impaired.

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The following table presents the maturity distribution of our commercial and construction loans as of December 31, 2016 based on their contractual maturity dates and does not include scheduled payments or potential prepayments.

Table 9A Commercial and Construction Loan Maturity Distribution

	Due within		Due after 1 but		Due after
(in thousands; unaudited)	1 year		within 5 years		5 years		Total
Maturity distribution:
Commercial	$	75,278	$	72,146	$	71,191	$	218,615
Construction	53,128		2,606		19,075		74,809
Total	$	128,406	$	74,752	$	90,266	$	293,424

The following table shows the mix of variable-rate loans to fixed-rate loans for commercial and construction loans. The large majority of the variable-rate loans are tied to independent indices (such as the Wall Street Journal prime rate or a Treasury Constant Maturity Rate). Most loans with original terms of more than five years have provisions for the fixed rates to reset, or convert to variable rates, after one, three or five years. These loans are included in variable rate balances.

Table 9B Commercial and Construction Loan Interest Rate Sensitivity

(in thousands; unaudited)	Fixed		Variable		Total
Commercial	$	99,992	$	118,623	$	218,615
Construction	1,412		73,397		74,809
Total	$	101,404	$	192,020	$	293,424

Allowance for Loan Losses

Credit risk is inherent in the business of lending. As a result, we maintain an allowance for loan losses to absorb probable losses in our loan portfolio through a provision for loan losses charged against earnings. All specifically identifiable and quantifiable losses are charged off against the allowance. The balance of our allowance for loan losses is Management's best estimate of the remaining probable losses in the portfolio. The ultimate adequacy of the allowance is dependent upon a variety of factors beyond our control, including the real estate market, changes in interest rates and economic and political environments. Based on the current conditions of the loan portfolio, Management believes that the $15.4 million allowance for loan losses at December 31, 2016 is adequate to absorb losses in our loan portfolio. No assurance can be given, however, that adverse economic conditions or other circumstances will not result in increased losses in the portfolio.

The Components of the Allowance for Loan Losses

As stated in Note 1 to the Consolidated Financial Statements in Item 8 of this report, the overall allowance consists of 1) specific allowances for individually identified impaired loans ("ASC 310-10") and 2) general allowances for pools of loans ("ASC 450-20"), which incorporate quantitative (e.g., loan loss rates) and qualitative risk factors (e.g., portfolio growth and trends, credit concentrations, economic and regulatory factors, etc.).

The first component, specific allowances, results from the analysis of identified problem credits and the evaluation of sources of repayment including collateral, as applicable. These loans are evaluated for impairment individually by Management. Management considers an originated loan to be impaired when it is probable we will be unable to collect all amounts due according to the contractual terms of the loan agreement. For PCI loans, specific allowances are established to account for credit deterioration subsequent to acquisition if we have probable decreases in cash flows expected to be collected. For loans determined to be impaired, the extent of the impairment is measured based on the present value of expected future cash flows discounted at the loan's effective interest rate at origination (for originated loans), based on the loan's observable market price, or based on the fair value of the collateral if the loan is collateral dependent or if foreclosure is imminent. Generally with problem credits that are collateral dependent, we obtain appraisals of the collateral at least annually. We may obtain appraisals more frequently if we believe the collateral is subject to market volatility, if a specific event has occurred to the collateral, or if we believe foreclosure is imminent. Impaired loan balances decreased to $18.3 at December 31, 2016 from $21.2 million at December 31, 2015. The

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decrease primarily relates to the resolution and pay-off of a $1.9 million commercial real estate credit and paydowns of several other impaired loans. The specific allowance decreased slightly to $991 thousand at December 31, 2016 from $1.2 million at December 31, 2015.

The second component is an estimate of the probable inherent losses in each loan pool with similar risk characteristics. This analysis encompasses the entire loan portfolio, excluding individually identified impaired loans and acquired loans whose purchase discount has not been fully accreted. Under our allowance model, loans are evaluated on a pool basis by federal regulatory reporting codes ("CALL codes" or "segments"), which are further delineated by assigned credit risk ratings, as described in Note 3 to the Consolidated Financial Statements in Item 8 of this report. At December 31, 2016 and 2015, the allowance allocated for the second component totaled $14.5 million and $13.8 million, respectively. The increase from 2015 to 2016 primarily relates to a $63.6 million increase in loans subject to general allowances for pools of loans.

Table 10 shows the allocation of the allowance by loan type as well as the percentage of total loans in each of the same loan types.

Table 10 Allocation of Allowance for Loan Losses

	December 31, 2016				December 31, 2015				December 31, 2014				December 31, 2013				December 31, 2012
(dollars in thousands; unaudited)	Allowance balance allocation		Loans as a percent of total loans		Allowance balance allocation		Loans as a percent of total loans		Allowance balance allocation		Loans as a percent of total loans		Allowance balance allocation		Loans as a percent of total loans		Allowance balance allocation		Loans as a percent of total loans
Commercial loans	$	3,248	14.7	%	$	3,023	15.1	%	$	2,837	15.4	%	$	3,056	14.4	%	$	4,100	16.4	%
Real Estate:
Commercial, owner-occupied	1,753		16.7		2,249		16.7		1,924		16.9		2,012		19.0		1,313		18.3
Commercial, investor	6,320		48.7		6,178		49.4		6,672		49.4		6,196		49.2		4,372		47.4
Construction	781		5.0		724		4.5		839		3.6		633		2.5		611		2.9
Home Equity	973		7.9		910		7.7		859		8.1		875		7.8		1,264		8.7
Other residential	454		5.3		394		5.0		433		5.4		317		5.7		551		4.6
Installment and other consumer	372		1.7		425		1.6		566		1.2		629		1.4		1,231		1.7
Unallocated allowance	1,541		N/A		1,096		N/A		969		N/A		506		N/A		219		N/A
Total allowance for loan losses	$	15,442			$	14,999			$	15,099			$	14,224			$	13,661
Total percent			100.0	%			100.0	%			100.0	%			100.0	%			100.0	%

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Table 11 shows the activity in the allowance for loan losses for each of the years in the five-year period ended December 31, 2016.

Table 11 Allowance for Loan Losses

(dollars in thousands; unaudited)	2016			2015			2014			2013			2012
Beginning balance	$	14,999		$	15,099		$	14,224		$	13,661		$	14,639
(Reversal of) provision for loan losses	(1,850		)	500			750			540			2,900
Loans charged-off:
Commercial	(11		)	(5		)	(66		)	(672		)	(892		)
Real Estate:
Commercial, owner occupied	(20		)	—			—			—			(181		)
Commercial, investor	—			—			—			(156		)	(2,414		)
Construction	—			(839		)	(204		)	(62		)	(373		)
Home equity	—			—			—			(176		)	(382		)
Other residential	—			—			—			—			(196		)
Installment and other consumer	(5		)	(20		)	(7		)	(88		)	(122		)
Total loans charged-off	(36		)	(864		)	(277		)	(1,154		)	(4,560		)
Loans recovered:
Commercial	143			236			168			1,021			541
Real Estate:
Commercial, owner occupied	—			—			5			84			5
Commercial, investor	2,156			23			45			40			—
Construction	—			—			96			1			122
Home equity	3			3			3			10			12
Other residential	—			—			—			—			—
Installment and other consumer	27			2			85			21			2
Total loans recovered	2,329			264			402			1,177			682
Net loans recovered (charged-off)	2,293			(600		)	125			23			(3,878		)
Ending balance	$	15,442		$	14,999		$	15,099		$	14,224		$	13,661
Total loans outstanding at end of year, before deducting allowance for loan losses	$	1,486,616		$	1,451,228		$	1,363,351		$	1,269,322		$	1,073,952
Average total loans outstanding during year	$	1,452,357		$	1,354,564		$	1,317,794		$	1,092,885		$	1,023,165
Ratio of allowance for loan losses to total loans at end of year	1.04		%	1.03		%	1.11		%	1.12		%	1.27		%
Net (recoveries) charge-offs to average loans	(0.16		)%	0.04		%	(0.01		)%	—		%	0.38		%
Ratio of allowance for loan losses to net (recoveries) charge-offs	(673.4		)%	2,499.8		%	(12,079.2		)%	(61,843.5		)%	352.3		%

Net recoveries totaled $2.3 million in 2016, compared to net charge-offs of $600 thousand in 2015. Recoveries in 2016 primarily resulted from the resolution and pay-off of a commercial real estate credit. Charge-offs in 2015 were primarily comprised of an $839 charge-off related to a land development loan that was sold. The percentage of net (recoveries) charge-offs to average loans was (0.16)% in 2016, compared to 0.04% in 2015 and (0.01)% in 2014, reflecting the factors discussed above.

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Table 12 shows non-performing assets for each of the years in the five-year period ended December 31, 2016.

Table 12 Non-performing Assets

(dollars in thousands; unaudited)	2016			2015			2014			2013			2012
Non-accrual loans:
Commercial	$	—		$	21		$	—		$	1,187		$	4,893
Real Estate:
Commercial, owner-occupied	—			—			1,403			1,403			1,403
Commercial, investor	—			1,903			2,429			2,807			6,843
Construction	—			1			5,134			5,218			2,239
Home equity	91			171			280			234			545
Other residential	—			—			—			660			1,196
Installment and other consumer	54			83			104			169			533
Total non-accrual loans	145			2,179			9,350			11,678			17,652
Other real estate owned	408			421			461			461			—
Repossessed personal properties	—			—			—			—			35
Total non-performing assets	$	553		$	2,600		$	9,811		$	12,139		$	17,687
Accruing restructured loans:
Commercial	$	2,207		$	4,562		$	3,584		$	4,514		$	4,577
Real Estate:
Commercial, owner-occupied	6,993			6,993			7,056			534			—
Commercial, investor	2,256			513			524			2,930			—
Construction	3,245			3,237			550			1,516			1,929
Home equity	625			388			414			272			648
Other residential	1,965			2,011			2,045			1,403			2,116
Installment and other consumer	877			1,168			1,689			1,693			1,515
Total accruing restructured loans	18,168			18,872			15,862			12,862			10,785
Accreting impaired PCI loans:
Commercial real estate 1	—			—			—			1,155			1,866
Commercial 1	—			137			—			—			—
Construction1	—			—			11			—			—
Total accreting impaired PCI loans	—			137			—			1,155			1,866
Total impaired loans	$	18,313		$	21,188		$	25,212		$	25,695		$	30,303
Allowance for loan losses to non-accrual loans at period end	10,650		%	688		%	162		%	122		%	77		%
Non-accrual loans to total loans	0.01		%	0.15		%	0.69		%	0.92		%	1.64		%
1 The expected cash flows on these PCI loans declined post-acquisition, yet continue to accrete interest based on the revised expected cash flows.

The decrease in non-performing loans from 2015 to 2016 primarily relates to the resolution and pay-off of a commercial real estate credit, mentioned above. The decrease in non-performing loans from 2014 to 2015 primarily relates to a previously non-performing loan that was returned to accrual status, the pay-off of a commercial real estate loan, and a land development loan that was sold. The decrease in non-accrual loans from 2013 to 2014 primarily relates to the successful resolution of several problem loans that led to pay offs, pay downs or resumption of payments.

Troubled debt restructured loans, whose contractual terms have been restructured in a manner which grants a concession to a borrower experiencing financial difficulties, totaled $18.2 million and $19.1 million as of December 31, 2016 and 2015, respectively. The decrease from 2015 to 2016 primarily relates to loan pay-offs and paydowns, net of loans modified as TDRs during 2016. The decrease from 2014 to 2015 primarily relates to five loans that were removed from TDR designation, one sold TDR loan and pay-offs and paydowns of several other TDR loans. For more information, refer to Note 3 to the Consolidated Financial Statements in Item 8, under “Troubled Debt Restructuring”.

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Other Assets

BOLI totaled $32.4 million at December 31, 2016, compared to $29.5 million at December 31, 2015, and is recorded in other assets. The increase primarily relates to $2.1 million in BOLI purchases in 2016.

Other assets also included net deferred tax assets of $15.3 million and $12.7 million at December 31, 2016 and 2015, respectively. These deferred tax assets consist primarily of tax benefits expected to be realized in future periods related to net operating loss carryforwards, temporary differences of allowance for loan losses, fair value adjustments on acquired loans, deferred compensation, and accrued but unpaid expenses. The increase in deferred tax assets in 2016 primarily relates to a higher amount of net unrealized loss on available-for-sale securities. Management believes these deferred tax assets to be realizable due to our consistent record of earnings and the expectation that earnings will continue at a level adequate to realize such benefits. Therefore, no valuation allowance has been established as of December 31, 2016 or 2015.

In addition, we held $10.2 million and $8.4 million of FHLB stock recorded at cost in other assets at December 31, 2016 and 2015, respectively. The increase is due to a $1.8 million FHLB capital stock purchase in April 2016 associated with our increased asset size. The FHLB paid $1.2 million and $1.0 million in cash dividends in 2016 and 2015, respectively. On February 21, 2017, the FHLB declared a cash dividend for the fourth quarter of 2016 at an annualized dividend rate of 9.08%.

Other assets also included $6.4 million in goodwill at both December 31, 2016 and 2015, as a result of a previous bank acquisition. Goodwill represents the excess of the total purchase price paid over the fair value of the assets acquired, net of the fair value of liabilities assumed. Goodwill mainly reflects expected value created through the combined operations of the acquired business and Bank of Marin, which we consider to be one reporting unit. We determined that the fair value of our traditional community banking activities (provided through our branch network) exceeded the carrying amount. Therefore, no impairment on goodwill was recognized in 2016, 2015, or 2014. The goodwill is not deductible for tax purposes.

A core deposit intangible asset, net of amortization, totaling $2.6 million and $3.1 million, at December 31, 2016 and December 31, 2015, respectively, is included in other assets which represents the estimated future benefits of acquired deposits and is booked separately from the related deposits. The value of the core deposit intangible asset was determined using a discounted cash flow approach to arrive at the cost differential between the core deposits (non-maturity deposits such as transaction, savings and money market accounts) and alternative funding sources. It was calculated as the present value of the difference  in  cash flows between maintaining the core deposits (interest  and maintenance  costs) and the cost of an equal amount of  funds with a similar term from an alternative source. The core deposit intangible is amortized on an accelerated basis over an estimated ten-year life, and it is evaluated periodically for impairment. No impairment loss was recognized in 2016, 2015, or 2014. For more information, refer to Note 1 to the Consolidated Financial Statements under “Goodwill and Other Intangible Assets” in Item 8 of this report.

Deposits

Deposits increased $44.5 million, or2.6%, in 2016. The increase in deposits in 2016 compared to 2015 is primarily due to the expansion of business by many of our commercial depositors as well as the acquisition of new clients. Non-interest bearing deposits totaled $817.0 million at December 31, 2016, an increase of $46.9 million when compared to December 31, 2015. Non-interest bearing deposits totaled 46.1% of total deposits as of December 31, 2016, compared to 44.6% at December 31, 2015. No individual customer accounted for more than 5% of deposits. Also see Item 1A. Risk Factors, for a discussion risks associated with volatility due to activity of our large deposit customers.

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Table 13 Distribution of Average Deposits

Table 13 shows the relative composition of our average deposits for the years 2016, 2015 and 2014. For average rates paid on deposits, refer to Table 1 in Item 7- Management's Discussion and Analysis of Financial Condition and Results of Operations.

					Years ended December 31,
	2016				2015				2014
(dollars in thousands; unaudited)	Amount		Percent		Amount		Percent		Amount		Percent
Non-interest bearing	$	819,916	46.9	%	$	753,038	45.8	%	$	717,738	44.7	%
Interest bearing transaction	94,252		5.4		95,662		5.8		101,133		6.3
Savings	151,214		8.6		134,997		8.2		125,169		7.8
Money market 1	524,989		30.0		505,280		30.7		507,055		31.6
Time deposits, including CDARS:
Less than $100,000	37,359		2.2		39,666		2.4		43,982		2.9
$100,000 or more	121,519		6.9		116,650		7.1		111,247		6.7
Total time deposits	158,878		9.1		156,316		9.5		155,229		9.6
Total average deposits	$	1,749,249	100.0	%	$	1,645,293	100.0	%	$	1,606,324	100.0	%

¹ Included in money market balances are Insured Cash Sweep^® ("ICS") balances and Demand Deposit Marketplace^SM ("DDM") defined in Note 6 to the Consolidated Financial Statements in Item 8 of this report.

Table 14 Maturities of Time Deposits of $100,000 or more at December 31

Table 14 below shows the maturity groupings for time deposits of $100,000 or more at December 31, 2016, 2015 and 2014.

	December 31,
(in thousands; unaudited)	2016		2015		2014
Three months or less	$	34,212	$	29,694	$	19,634
Over three months through six months	17,482		18,525		16,668
Over six months through twelve months	26,301		35,735		20,207
Over twelve months	37,122		37,969		49,076
Total	$	115,117	$	121,923	$	105,585

Borrowings

As of December 31, 2016 and 2015, respectively, we had $513.7 million and $470.6 million in secured lines of credit with FHLB and $43.1 million and $37.8 million with the Federal Reserve Bank of San Francisco (“FRBSF”). We also had $92.0 million in unsecured lines with correspondent banks to cover any short or long-term borrowing needs at both December 31, 2016 and 2015.

At December 31, 2016 there were no FHLB overnight borrowings compared to $52.0 million in FHLB overnight borrowings at a rate of 0.27% at December 31, 2015. On February 5, 2008, the Bank entered into a ten-year borrowing agreement under the same FHLB line of credit for $15.0 million at a fixed rate of 2.07%. On June 15, 2016, the Bank repaid the $15.0 million early and incurred a prepayment fee of $312 thousand recorded in interest expense. At December 31, 2016 and 2015, respectively, $513.7 million and $403.4 million were remaining as available for borrowing from the FHLB, net of outstanding borrowings and an unused standby letter of credit totaling $241 thousand at December 31, 2015. The FRBSF and correspondent bank lines were not utilized at December 31, 2016 and 2015.

As part of a bank acquisition in 2013, we assumed two subordinated debentures due to the NorCal Community Bancorp Trusts I and II at fair values totaling $5.0 million at the acquisition date, which are being accreted up to the contractual values totaling $8.2 million over the remaining terms of the debentures. The subordinated debentures have been accreted up to $5.6 million and $5.4 million as of December 31, 2016 and 2015, respectively.

For additional information, see Note 7 to the Consolidated Financial Statements in Item 8 of this report.

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Deferred Compensation Obligations

We maintain a non-qualified, unfunded deferred compensation plan for certain key management personnel. Under this plan, participating employees may defer compensation, which will entitle them to receive certain payments for up to fifteen years commencing upon retirement, death, disability or termination of employment. The participating employee may elect to receive payments over periods not to exceed fifteen years. At December 31, 2016 and 2015, our aggregate payment obligations under this plan totaled $3.2 million and $3.0 million, respectively.

We established a Salary Continuation Plan on January 1, 2011. The plan was to provide a percentage of salary continuation benefits to a select group of Executive Management upon retirement at age sixty-five and reduced benefits upon early retirement.  At December 31, 2016 and 2015, our liability under the Salary Continuation Plan was $1.0 million and $823 thousand, respectively, and is recorded in interest payable and other liabilities in the Consolidated Statements of Condition. This Plan is unfunded and non-qualified for tax purposes and for purposes of Title I of the Employee Retirement Income Security Act of 1974.

For additional information, see Note 10 to the Consolidated Financial Statements in Item 8 of this report.

Off-Balance Sheet Arrangements, Commitments and Contractual Obligations

We make commitments to extend credit in the normal course of business to meet the financing needs of our customers. For additional information, see Note 16 to the Consolidated Financial Statements in Item 8 of this report. The following is a summary of our contractual obligations as of December 31, 2016.

Table 15 Contractual Obligations at December 31, 2016

	Payments due by period
(in thousands; unaudited)	<1 year		1-3 years		4-5 years		>5 years		Total
Operating leases	$	3,850	$	7,644	$	5,519	$	4,069	$	21,082
Subordinated debentures	—		—		—		8,248		8,248
Certificates of deposit	104,616		20,216		26,631		—		151,463
Total	$	108,466	$	27,860	$	32,150	$	12,317	$	180,793

The contractual amount of loan commitments not reflected on the consolidated statements of condition was $422.3 million and $376.6 million at December 31, 2016 and 2015, respectively.

As permitted or required under California law and to the maximum extent allowable under that law, we have certain obligations to indemnify our current and former officers and directors for certain events or occurrences while the officer or director is, or was serving, at our request in such capacity. These indemnification obligations are valid as long as the director or officer acted in good faith and in a manner the person reasonably believed to be in, or not opposed to, our best interests, and with respect to any criminal action or proceeding, had no reasonable cause to believe his or her conduct was unlawful. The maximum potential amount of future payments we could be required to make under these indemnification obligations is unlimited; however, we have a director and officer insurance policy that mitigates our exposure and enables us to recover a portion of any future amounts paid. As we believe the possibility of potential claims to be remote and any amounts under the indemnifications would be covered by the insurance policy, we have not recorded an indemnification obligation.

Capital Adequacy

As discussed in Note 15 to the Consolidated Financial Statements in Item 8 of this report, the Bank's capital ratios are above regulatory guidelines to be considered "well capitalized" and Bancorp's ratios exceed the required minimum ratios for capital adequacy purposes. The Bank's total risk-based capital ratio increased from 13.1% at December 31, 2015 to 14.1% at December 31, 2016, primarily due to accumulation of undistributed net income of the Bank in 2016 of $17.6 million. Bancorp's total risk-based capital ratio increased from 13.4% at December 31, 2015 to 14.3% at December 31, 2016, primarily due to the accumulation of undistributed net income of $16.9 million in 2016.

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We expect to maintain strong capital levels. Our anticipated sources of capital in 2017 include future earnings and shares issued under the stock-based compensation program.

Liquidity

The goal of liquidity management is to provide adequate funds to meet loan demand and fund operating activities and deposit withdrawals. We accomplish this goal by maintaining an appropriate level of liquid assets and formal lines of credit with the FHLB, FRBSF and correspondent banks that enable us to borrow funds as needed. Our Asset Liability Management Committee ("ALCO"), which is comprised of certain directors of the Bank, is responsible for approving and monitoring our liquidity targets and strategies. ALCO has adopted a contingency funding plan that provides early detection of a potential shortfall in liquidity below internal requirements and institutes prompt responses that may prevent or alleviate a potential liquidity crisis.

We obtain funds from the repayment and maturity of loans as well as deposit inflows, investment security maturities, paydowns and sales, federal funds purchases, FHLB advances and other borrowings.  Our primary uses of funds are the origination of loans, the purchase of investment securities, withdrawals of deposits, maturity of certificates of deposit, repayment of borrowings and dividends to common stockholders.

The most volatile factor in our short-term liquidity position has been the level of customer deposits. We attract and retain new deposits, which depends upon the variety and effectiveness of our customer account products, service and convenience, and rates paid to customers, as well as our financial strength. However, the business model and cyclical nature of the cash cycles of some of our large commercial depositors may also cause short-term volatility in their deposit balances held with us.

Any long-term decline in deposit funding would adversely affect our liquidity. Management monitors our liquidity position daily and regularly adjusts our investments in liquid assets based upon our assessment of expected loan demand and pay-off activities, expected deposit flows, desired mix and yields on interest-earning assets and the objectives of our asset/liability management program. In addition, we have secured borrowing capacity through the FHLB and FRBSF, as discussed in Note 7 to the Consolidated Financial Statements in Item 8 of this report, that can be drawn upon. Management anticipates our current strong liquidity position and core deposit base will provide adequate liquidity to fund our operations.

At December 31, 2016 our liquid assets, which included unencumbered available-for-sale securities and cash, totaled $314.8 million, compared to $375.0 million at December 31, 2015. The decline is primarily due to $68.7 million of available-for-sale securities sold to repay $67.0 million of FHLB borrowings in 2016. As presented in the accompanying consolidated statements of cash flows, the sources of liquidity vary between periods. Our cash and cash equivalents at December 31, 2016 totaled $48.8 million, an increase of $22.5 million from December 31, 2015. The primary sources of funds during 2016 included $225.4 million in proceeds from sales, paydowns and maturities of investment securities, a net increase of $44.5 million in deposits and $25.4 million net cash provided by operating activities. The primary uses of liquidity during 2016 were $163.8 million in investment securities purchases, the repayment of $67.0 million in borrowings to lower our funding costs going forward, loan originations (net of loan principal collections) of $32.0 million and $6.2 million cash dividends paid on common stock to our shareholders.

Undrawn credit commitments, as discussed above and in Note 16 to the Consolidated Financial Statements in Item 8 of this report, totaled $422.3 million at December 31, 2016. These commitments, to the extent used, are expected to be funded primarily through the repayment of existing loans, deposit growth and liquid assets. Over the next twelve months, $104.6 million of time deposits will mature. We expect these funds to be replaced with new deposits. Our emphasis on local deposits combined with our well capitalized equity position, provides a very stable funding base.

Since Bancorp is a holding company and does not conduct regular banking operations, its primary sources of liquidity are dividends from the Bank. Under the California Financial Code, payment of a dividend from the Bank to Bancorp without advance regulatory approval is restricted to the lesser of the Bank’s retained earnings or the amount of the Bank’s net profits from the previous three fiscal years less the amount of dividends paid during that period. The primary uses of funds for Bancorp are shareholder dividends and ordinary operating expenses.  Bancorp held $3.6 million of cash at December 31, 2016. Bancorp obtained a dividend distribution from the Bank in the amount of $4.0 million in February of 2017. These funds are deemed sufficient to cover Bancorp's operational needs and cash dividends to shareholders through the end of 2017. Management anticipates that there will be sufficient earnings at the Bank to provide dividends to Bancorp to meet its funding requirements for the foreseeable future.

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Quarterly Financial Data

Table 16 Summary of Quarterly Financial Data

	2016 Quarters Ended										2015 Quarters Ended
(dollars in thousands; unaudited)	Dec. 31			Sept. 30			Jun. 30		Mar. 31		Dec. 31		Sept. 30		Jun. 30		Mar. 31
Interest income	$	18,408		$	19,834		$	17,993	$	19,195	$	17,795	$	17,445	$	17,018	$	17,180
Interest expense	432			453			827		557		552		562		564		582
Net interest income	17,976			19,381			17,166		18,638		17,243		16,883		16,454		16,598
(Reversal of) provision for loan losses	(300		)	(1,550		)	—		—		500		—		—		—
Net interest income after (reversal of)
provision for loan losses	18,276			20,931			17,166		18,638		16,743		16,883		16,454		16,598
Non-interest income	2,463			2,114			2,421		2,163		2,098		2,298		2,608		2,189
Non-interest expense	11,755			11,910			12,017		12,010		11,135		11,638		12,319		11,848
Income before provision for income taxes	8,984			11,135			7,570		8,791		7,706		7,543		6,743		6,939
Provision for income taxes	3,297			4,171			2,733		3,145		2,781		2,770		2,457		2,482
Net income	$	5,687		$	6,964		$	4,837	$	5,646	$	4,925	$	4,773	$	4,286	$	4,457
Net income available to common stockholders	$	5,687		$	6,964		$	4,837	$	5,646	$	4,925	$	4,773	$	4,286	$	4,457
Net income per common share:
Basic	$	0.93		$	1.14		$	0.80	$	0.93	$	0.82	$	0.80	$	0.72	$	0.75
Diluted	$	0.93		$	1.14		$	0.79	$	0.93	$	0.81	$	0.79	$	0.71	$	0.74

ITEM 7A.     Quantitative and Qualitative Disclosure about MarketRisk

Market risk is defined as the risk of loss arising from an adverse change in the market value (or prices) of financial instruments. A significant form of market risk is interest rate risk, which is inherent in our investment, borrowing, lending and deposit gathering activities. The Bank manages interest rate sensitivity to minimize the exposure of our net interest margin, earnings, and capital to changes in interest rates. Interest rate changes can create fluctuations in the net interest margin due to an imbalance in the timing of repricing or maturity of assets or liabilities.

To mitigate interest rate risk, the structure of the Consolidated Statement of Condition is managed with the objective of correlating the effects of interest rate changes on loans and investments with those of deposits and borrowings. The asset liability management policy sets limits on the acceptable amount of change to net interest income and economic value of equity in different interest rate environments.

From time to time, we enter into interest rate swap contracts to mitigate the changes in the fair value of specified long-term fixed-rate loans and firm commitments to enter into long-term fixed-rate loans caused by changes in interest rates. See Note 14 to the Consolidated Financial Statements in Item 8 of this report.

Exposure to interest rate risk is reviewed at least quarterly by ALCO and the Board of Directors. Simulation models are used to measure interest rate risk and to evaluate strategies to improve profitability. A simplified statement of condition is prepared on a quarterly basis as a starting point, using instrument level data of our actual loans, investments, borrowings and deposits as inputs. If potential changes to net equity value and net interest income resulting from hypothetical interest rate changes are not within the limits established by the Board of Directors, Management may adjust the asset and liability mix to bring the risk position within approved limits.

In December 2016, the FOMC raised the target federal funds rate, the second time since December 2008, by 25 basis points to a range of 0.50% to 0.75%. The Bank currently has low interest rate risk and, in general, is slightly asset sensitive (net interest margin is expected to increase if rates go up due to our adjustable rate loans and our significant non-interest bearing deposit base). Our net interest income is most vulnerable to a falling interest rate environment.

Page-44

The following table estimates the effect of interest rate changes in all points of the yield curve as measured against a flat rate scenario. For modeling purposes, the likelihood of a decrease in interest rates beyond 100 basis points as of December 31, 2016 was considered to be remote given prevailing low interest rate levels. The interest rate risk is within policy guidelines established by ALCO and the Board of Directors.

Table 17	Effect of Interest Rate Change on Net Interest Income (NII) at December 31, 2016
	Immediate Changes in Interest Rates (in basis points)	Estimated Change in NII in Year 1 (as percent of NII)	Estimated Change in NII in Year 2 (as percent of NII)
	up 400	(0.6)%	10.0%
	up 300	(0.2)%	8.1%
	up 200	0.1%	5.9%
	up 100	0.3%	3.9%
	down 100	(5.7)%	(10.6)%

Interest rate sensitivity is a function of the repricing characteristics of our assets and liabilities. The Bank runs a combination of scenarios and sensitivities in its attempt to capture the range of interest rate risk. As with any simulation model or other method of measuring interest rate risk, limitations are inherent in the process and dependent on assumptions. For example, if we choose to pay interest on certain business deposits that are currently non-interest bearing, causing these deposits to become rate sensitive in the future, we would become less asset sensitive than the model currently indicates. Assets and liabilities may react differently to changes in market interest rates in terms of both timing and responsiveness to market rate movements. Further, the actual rates and timing of prepayments on loans and investment securities, and the behavior of depositors, could vary significantly from the assumptions applied in the various scenarios. Lastly, changes in U.S. Treasury rates accompanied by a change in the shape of the yield curve could produce different results from those presented in the table. Accordingly, the results presented should not be relied upon as indicative of actual results in the event of changing market interest rates.

Page-45

ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Report of Independent Registered Public Accounting Firm

The Board of Directors and Shareholders

Bank of Marin Bancorp

We have audited the accompanying consolidated statements of condition of Bank of Marin Bancorp and subsidiary (the “Company”) as of December 31, 2016 and 2015, and the related consolidated statements of comprehensive income, changes in stockholders' equity, and cash flows for each of the three years in the period ended December 31, 2016. We also have audited the Company's internal control over financial reporting as of December 31, 2016, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management's Report on Internal Control over Financial Reporting and Compliance with Applicable Laws and Regulations. Our responsibility is to express an opinion on these consolidated financial statements and an opinion on the Company's internal control over financial reporting based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the consolidated financial statements included examining, on a test basis, evidence supporting the amounts and disclosures in the consolidated financial statements, assessing the accounting principles used and significant estimates made by Management, and evaluating the overall consolidated financial statement presentation. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of Management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the consolidated financial position of Bank of Marin Bancorp and subsidiary as of December 31, 2016 and 2015, and the consolidated results of their operations and their cash flows each of the three years in the period ended December 31, 2016, in conformity with generally accepted accounting principles in the United States of America. Also in our opinion, Bank of Marin Bancorp maintained, in all material respects, effective internal control over financial reporting as of December 31, 2016, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

/s/ Moss Adams LLP

San Francisco, California

March 13, 2017

Page-46

504 Redwood Blvd, Suite 100

Novato, CA 94947

March 13, 2017

To the Shareholders:

Management's Report on Internal Control over Financial Reporting and Compliance with Applicable Laws and Regulations

Management of the Bank of Marin Bancorp and its subsidiary (”Bancorp”) is responsible for preparing the Bancorp's annual consolidated financial statements in accordance with generally accepted accounting principles. Management is also responsible for establishing and maintaining internal control over financial reporting, including controls over the preparation of regulatory financial statements, and for complying with the designated safety and soundness laws and regulations pertaining to insider loans and dividend restrictions. Bancorp's internal control contains monitoring mechanisms, and actions are taken to correct deficiencies identified.

There are inherent limitations in the effectiveness of any internal control, including the possibility of human error and the circumvention or overriding of controls. Accordingly, even effective internal control can provide only reasonable assurance with respect to financial statement preparation. Further, because of changes in conditions, the effectiveness of internal control may vary over time.

Management has assessed Bancorp's internal control over financial reporting encompassing both consolidated financial statements prepared in accordance with generally accepted accounting principles and those prepared for regulatory reporting purposes as of December 31, 2016. The assessment was based on criteria for effective internal control over financial reporting described in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, Management believes that, as of December 31, 2016, Bancorp maintained effective internal control over financial reporting encompassing both consolidated financial statements prepared in accordance with generally accepted accounting principles and those prepared for regulatory reporting purposes in all material respects. Management also believes that Bancorp complied with the designated safety and soundness laws and regulations pertaining to insider loans and dividend restrictions during 2016.

Management's assessment of the effectiveness of Bancorp's internal control over financial reporting as of December 31, 2016 has been audited by Moss Adams LLP, an independent registered public accounting firm, which expresses an unqualified opinion as stated in their report which appears on the previous page.

/s/ Russell A. Colombo

Russell A. Colombo, President and Chief Executive Officer

/s/ Tani Girton

Tani Girton, EVP and Chief Financial Officer

Page-47

BANK OF MARIN BANCORP

CONSOLIDATEDSTATEMENTS OFCONDITION

December 31, 2016 and 2015

(in thousands, except share data)	2016			2015
Assets
Cash and due from banks	$	48,804		$	26,343
Investment securities
Held-to-maturity, at amortized cost	44,438			69,637
Available-for-sale, at fair value	372,580			417,787
Total investment securities	417,018			487,424
Loans, net of allowance for loan losses of $15,442 and $14,999 at December 31, 2016 and 2015, respectively	1,471,174			1,436,229
Bank premises and equipment, net	8,520			9,305
Goodwill	6,436			6,436
Core deposit intangible	2,580			3,113
Interest receivable and other assets	68,961			62,284
Total assets	$	2,023,493		$	2,031,134
Liabilities and Stockholders' Equity
Liabilities
Deposits
Non-interest bearing	$	817,031		$	770,087
Interest bearing
Transaction accounts	100,723			114,277
Savings accounts	163,516			141,316
Money market accounts	539,967			541,089
Time accounts	151,463			161,457
Total deposits	1,772,700			1,728,226
Federal Home Loan Bank ("FHLB") borrowings	—			67,000
Subordinated debentures	5,586			5,395
Interest payable and other liabilities	14,644			16,040
Total liabilities	1,792,930			1,816,661
Stockholders' Equity
Preferred stock, no par value, Authorized - 5,000,000 shares, none issued	—			—
Common stock, no par value,    Authorized - 15,000,000 shares;    Issued and outstanding - 6,127,314 and 6,068,543 at December 31, 2016 and 2015,    respectively	87,392			84,727
Retained earnings	146,464			129,553
Accumulated other comprehensive (loss) income, net	(3,293		)	193
Total stockholders' equity	230,563			214,473
Total liabilities and stockholders' equity	$	2,023,493		$	2,031,134

The accompanying notes are an integral part of these consolidated financial statements.

Page-48

BANK OF MARIN BANCORP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

Years ended December 31, 2016, 2015 and 2014

(in thousands, except per share amounts)	2016			2015			2014
Interest income
Interest and fees on loans	$	67,472		$	61,754		$	64,823
Interest on investment securities
Securities of U.S. government agencies	5,155			4,709			4,502
Obligations of state and political subdivisions	2,339			2,155			2,273
Corporate debt securities and other	256			685			1,031
Interest on federal funds sold and due from banks	208			135			161
Total interest income	75,430			69,438			72,790
Interest expense
Interest on interest-bearing transaction accounts	109			115			99
Interest on savings accounts	58			51			46
Interest on money market accounts	445			495			550
Interest on time accounts	743			853			917
Interest on FHLB and overnight borrowings	478			317			315
Interest on subordinated debentures	436			420			422
Total interest expense	2,269			2,251			2,349
Net interest income	73,161			67,187			70,441
(Reversal of) provision for loan losses	(1,850		)	500			750
Net interest income after provision for loan losses	75,011			66,687			69,691
Non-interest income
Service charges on deposit accounts	1,789			1,979			2,167
Wealth Management and Trust Services	2,090			2,391			2,309
Debit card interchange fees	1,503			1,445			1,378
Merchant interchange fees	449			545			803
Earnings on bank-owned life Insurance	844			814			841
Dividends on FHLB stock	1,153			1,003			563
Gains on investment securities, net	425			79			80
Other income	908			937			900
Total non-interest income	9,161			9,193			9,041
Non-interest expense
Salaries and related benefits	26,663			25,764			25,005
Occupancy and equipment	5,081			5,498			5,470
Depreciation and amortization	1,822			1,968			1,585
Federal Deposit Insurance Corporation insurance	825			997			1,032
Data processing	3,625			3,318			3,665
Professional services	2,044			2,121			2,230
Directors' expense	553			826			628
Information technology	862			736			675
Provision for (reversal of) losses on off-balance sheet commitments	150			(263		)	334
Other expense	6,067			5,984			6,639
Total non-interest expense	47,692			46,949			47,263
Income before provision for income taxes	36,480			28,931			31,469
Provision for income taxes	13,346			10,490			11,698
Net income	$	23,134		$	18,441		$	19,771
Net income per common share:
Basic	$	3.81		$	3.09		$	3.35
Diluted	$	3.78		$	3.04		$	3.29
Weighted average shares:
Basic	6,073			5,966			5,893
Diluted	6,115			6,065			6,006
Dividends declared per common share	$	1.02		$	0.90		$	0.80
Comprehensive income:
Net income	$	23,134		$	18,441		$	19,771
Other comprehensive income
Change in net unrealized gain or loss on available-for-sale securities	(5,658		)	(1,420		)	2,939
Reclassification adjustment for (gains) losses on available-for-sale securities included in net income	(394		)	(6		)	24
Net change in unrealized gain or loss on available-for-sale securities, before tax	(6,052		)	(1,426		)	2,963
Deferred tax (benefit) expense	(2,566		)	(531		)	1,203
Other comprehensive (loss) income, net of tax	(3,486		)	(895		)	1,760
Comprehensive income	$	19,648		$	17,546		$	21,531

The accompanying notes are an integral part of these consolidated financial statements.

Page-49

BANK OF MARIN BANCORP

CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY

Years ended December 31, 2016, 2015 and 2014

(in thousands, except share data)	Common Stock				Retained Earnings			Accumulated Other Comprehensive  Income (Loss), Net of Taxes			Total
	Shares		Amount
Balance at December 31, 2013	5,877,524		$	80,095	$	101,464		$	(672	)	$	180,887
Net income	—		—		19,771			—			19,771
Other comprehensive income	—		—		—			1,760			1,760
Stock options exercised	49,415		1,452		—			—			1,452
Excess tax benefit - stock-based compensation	—		172		—			—			172
Stock issued under employee stock purchase plan	521		23		—			—			23
Restricted stock granted	8,523		—		—			—			—
Restricted stock forfeited / cancelled	(2,067	)	—		—			—			—
Stock-based compensation - stock options	—		200		—			—			200
Stock-based compensation - restricted stock	—		246		—			—			246
Cash dividends paid on common stock	—		—		(4,733		)	—			(4,733		)
Stock purchased by directors under director stock plan	260		12		—			—			12
Stock issued in payment of director fees	5,306		236		—			—			236
Balance at December 31, 2014	5,939,482		$	82,436	$	116,502		$	1,088		$	200,026
Net income	—		—		18,441			—			18,441
Other comprehensive loss	—		—		—			(895		)	(895		)
Stock options exercised	37,071		1,139		—			—			1,139
Excess tax benefit - stock-based compensation	—		212		—			—			212
Stock issued under employee stock purchase plan	339		17		—			—			17
Restricted stock granted	15,970		—		—			—			—
Restricted stock forfeited / cancelled	(450	)	—		—			—			—
Stock-based compensation - stock options	—		252		—			—			252
Stock-based compensation - restricted stock	—		384		—			—			384
Cash dividends paid on common stock	—		—		(5,390		)	—			(5,390		)
Stock purchased by directors under director stock plan	245		12		—			—			12
Stock issued in payment of director fees	5,295		275		—			—			275
Stock issued from exercise of warrants	70,591		—		—			—			—
Balance at December 31, 2015	6,068,543		$	84,727	$	129,553		$	193		$	214,473
Net income	—		—		23,134			—			23,134
Other comprehensive loss	—		—		—			(3,486		)	(3,486		)
Stock options exercised	36,117		1,227		—			—			1,227
Excess tax benefit - stock-based compensation	—		161		—			—			161
Stock issued under employee stock purchase plan	621		32		—			—			32
Restricted stock granted	16,910		—		—			—			—
Stock-based compensation - stock options	—		347		—			—			347
Stock-based compensation - restricted stock	—		638		—			—			638
Cash dividends paid on common stock	—		—		(6,223		)	—			(6,223		)
Stock purchased by directors under director stock plan	516		26		—			—			26
Stock issued in payment of director fees	4,607		234		—			—			234
Balance at December 31, 2016	6,127,314		$	87,392	$	146,464		$	(3,293	)	$	230,563

The accompanying notes are an integral part of these consolidated financial statements.

Page-50

BANK OF MARIN BANCORP

CONSOLIDATED STATEMENTS OF CASH FLOWS

Years ended December 31, 2016, 2015 and 2014

(in thousands)	2016			2015			2014
Cash Flows from Operating Activities:
Net income	$	23,134		$	18,441		$	19,771
Adjustments to reconcile net income to net cash provided  by operating activities:
(Reversal of) provision for loan losses	(1,850		)	500			750
Provision for (reversal of) losses on off-balance sheet commitments	150			(263		)	334
Compensation expense--common stock for director fees	180			274			270
Stock-based compensation expense	985			636			446
Excess tax benefits from exercised stock options	(161		)	(187		)	(118		)
Amortization of core deposit intangible	533			619			771
Amortization of investment security premiums, net of accretion of discounts	3,212			2,825			2,759
Accretion of discount on acquired loans	(1,775		)	(1,883		)	(3,906		)
Accretion of discount on subordinated debentures	191			210			216
Net amortization of deferred loan origination costs/fees	114			(281		)	(463		)
Write-down of other real estate owned	13			40			—
Gain on sale of investment securities	(425		)	(79		)	(93		)
Other-than-temporary impairment on securities available-for-sale	—			—			13
Depreciation and amortization	1,822			1,968			1,585
Loss on disposal of premises and equipment	3			4			—
Earnings on bank owned life insurance policies	(844		)	(814		)	(841		)
Net change in operating assets and liabilities:
Interest receivable	324			(734		)	(143		)
Interest payable	(53		)	(26		)	(40		)
Deferred rent and other rent-related expenses	(254		)	(4		)	160
Other assets	257			1,081			(184		)
Other liabilities	(110		)	1,355			(2,430		)
Net cash provided by operating activities	25,446			23,682			18,857
Cash Flows from Investing Activities:
Purchase of held-to-maturity securities	(2,424		)	(2,375		)	—
Purchase of available-for-sale securities	(161,374		)	(287,144		)	(18,206		)
Proceeds from sale of available-for-sale securities	68,673			2,099			2,436
Proceeds from sale of held-to-maturity securities	1,265			1,015			2,146
Proceeds from paydowns/maturities of held-to-maturity securities	25,779			47,181			16,793
Proceeds from paydowns/maturities of available-for-sale securities	129,669			64,839			46,371
Loans originated and principal collected, net	(32,005		)	(88,123		)	(88,872		)
Purchase of bank owned life insurance policies	(2,133		)	—			—
Purchase of premises and equipment	(1,040		)	(1,418		)	(2,334		)
Proceeds from sale of loan	—			1,502			—
Purchase of Federal Home Loan Bank stock	(1,791		)	(136		)	(492		)
Cash paid for low income housing investment	(301		)	(718		)	(494		)
Net cash provided by (used in) investing activities	24,318			(263,278		)	(42,652		)
Cash Flows from Financing Activities:
Net increase (decrease) in deposits	44,474			176,607			(35,483		)
Proceeds from stock options exercised	1,227			1,139			1,452
Federal Home Loan Bank (repayments) borrowings	(67,000		)	52,000			—
Cash dividends paid on common stock	(6,223		)	(5,390		)	(4,733		)
Proceeds from stock issued under employee and director stock purchase plans	58			29			35
Excess tax benefits from exercised stock options	161			187			118
Net cash (used in) provided by financing activities	(27,303		)	224,572			(38,611		)
Net increase (decrease) in cash and cash equivalents	22,461			(15,024		)	(62,406		)
Cash and cash equivalents at beginning of period	26,343			41,367			103,773
Cash and cash equivalents at end of period	$	48,804		$	26,343		$	41,367
Supplemental disclosure of cash flow items, non-cash investing and financing activities:
Cash paid in interest	$	2,131		$	2,066		$	2,185
Cash paid in income taxes	$	13,365		$	9,068		$	11,290
Change in unrealized gain on available-for-sale securities	$	(6,052	)	$	(1,426	)	$	2,963
Stock issued in payment of director fees	$	234		$	275		$	236
Subscription in low income housing tax credit investment	$	—		$	1,023		$	1,000
Securities transferred from available-for-sale to held-to-maturity	$	—		$	—		$	14,297
Transfer of loan to loans held-for-sale at fair value	$	—		$	1,502		$	—

The accompanying notes are an integral part of these consolidated financial statements.

Page-51

NOTES TO CONSOLIDATEDFINANCIAL STATEMENTS

Note 1:  Summary of Significant Accounting Policies

Basis of Presentation: The consolidated financial statements include the accounts of Bank of Marin Bancorp (“Bancorp”), a bank holding company, and its wholly-owned bank subsidiary, Bank of Marin (the “Bank”), a California state-chartered commercial bank. References to “we,” “our,” “us” mean the holding company and the Bank that are consolidated for financial reporting purposes. All material intercompany transactions have been eliminated. We have evaluated subsequent events through the date of filing with the Securities and Exchange Commission (“SEC”) and have determined that there are no subsequent events that require additional recognition or disclosure, except for the transfer of certain investment securities from the available-for-sale category to held-to-maturity as discussed in Note 2, Investment Securities, herein.

The NorCal Community Bancorp Trusts I and II, respectively (the "Trusts"), were formed for the sole purpose of issuing trust preferred securities. Bancorp is not considered the primary beneficiary of the Trusts (variable interest entities), therefore the Trusts are not consolidated in our consolidated financial statements, but rather the subordinated debentures are shown as a liability on our consolidated statements of condition (See Note 7, Borrowings). Bancorp's investment in the securities of the Trusts is accounted for under the equity method and is included in interest receivable and other assets on the consolidated statements of condition.

Nature of Operations: Bancorp, headquartered in Novato, CA, conducts business primarily through its wholly-owned subsidiary, the Bank, which provides a wide range of financial services to customers, who are predominantly professionals, small and middle-market businesses, and individuals who work and/or reside in Marin, Sonoma, Napa, San Francisco and Alameda counties. Besides the headquarters office in Novato, CA, the Bank operates ten branches in Marin County, one in Napa County, one in San Francisco, five in Sonoma County and three in Alameda County. Our accounting and reporting policies conform to generally accepted accounting principles, general practice, and regulatory guidance within the banking industry. A summary of our significant policies follows.

Cash and Cash Equivalents include cash, due from banks, federal funds sold and other short-term investments with maturity less than three months at the time of origination.

Investment Securities are classified as "held-to-maturity," "trading securities" or "available-for-sale." Investments classified as held-to-maturity are those that we have the ability and intent to hold until maturity and are reported at cost, adjusted for the amortization or accretion of premiums or discounts. Investments held for resale in anticipation of short-term market movements are classified as trading securities and are reported at fair value, with unrealized gains and losses included in earnings. Investments that are neither held-to-maturity nor trading are classified as available-for-sale and are reported at fair value. Unrealized gains and losses for available-for-sale securities, net of related tax, are reported as a separate component of comprehensive income and included in stockholders' equity until realized. For discussion of our methodology in determining fair value, see Note 9, Fair Value of Assets and Liabilities.

At each financial statement date, we assess whether declines in the fair value of held-to-maturity and available-for-sale securities below their costs are deemed to be other-than-temporary. We consider, among other things, (i) the length of time and the extent to which the fair value has been less than cost, (ii) the financial condition and near-term prospects of the issuer, and (iii) our intent and ability to retain the investment for a period of time sufficient to allow for any anticipated recovery in fair value. Evidence evaluated includes, but is not limited to, the remaining payment terms of the instrument and economic factors that are relevant to the collectability of the instrument, such as: current prepayment speeds, the current financial condition of the issuer(s), industry analyst reports, credit ratings, credit default rates, interest rate trends, the quality of any credit enhancement and the value of any underlying collateral.

For each security in an unrealized loss position ("impaired security"), we assess whether we intend to sell the security or if it is more likely than not that we will be required to sell the security before recovery of its amortized cost basis. If we intend to sell the security or it is more likely than not we will be required to sell the security before recovery of its amortized cost basis, the entire difference between the investment’s amortized cost basis and its fair value at the balance sheet date is recognized against earnings.

For impaired securities that are not intended for sale and will not be required to be sold prior to recovery of our amortized cost basis, we determine if the impairment has a credit loss component. For both held-to-maturity and available-for-

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sale securities, if the amount of cash flows expected to be collected are less than the amortized cost, an other-than-temporary impairment shall be considered to have occurred and the credit loss component is recognized against earnings as the difference between present value of the expected future cash flows and the amortized cost. In determining the present value of the expected cash flows, we discount the expected cash flows at the effective interest rate implicit in the security at the date of purchase. The remaining difference between the fair value and the amortized basis is deemed to be due to factors that are not credit related and is recognized in other comprehensive income, net of applicable taxes.

For held-to-maturity securities, if there is no credit loss component, no impairment is recognized. The portion of other-than-temporary impairment recognized in other comprehensive income for credit impaired debt securities classified as held-to-maturity is accreted from other comprehensive income to the amortized cost of the debt security over the remaining life of the debt security in a prospective manner on the basis of the amount and timing of future estimated cash flows.

Premiums and discounts are amortized or accreted over the life of the related security as an adjustment to yield using the effective interest method. Dividend and interest income are recognized when earned. Realized gains and losses on the sale of securities and credit losses related to other-than-temporary impairment on available-for-sale and held-to-maturity securities are included in non-interest income as gains (losses) on investment securities, net. The specific identification method is used to calculate realized gains and losses on sales of securities.

Originated Loansare reported at the principal amount outstanding net of deferred fees (costs), charge-offs and the allowance for loan losses (“ALLL”). Interest income is accrued daily using the simple interest method. Loans are placed on non-accrual status when Management believes that there is doubt as to the collection of principal or interest, generally when they become contractually past due by ninety days or more with respect to principal or interest, except for loans that are well-secured and in the process of collection. When loans are placed on non-accrual status, any accrued but uncollected interest is reversed from current-period interest income. Non-accrual loans may be returned to accrual status when one of the following occurs:

• The borrower has resumed paying the full amount of the principal and interest and we are satisfied with the borrower's financial position. In order to meet this test, we must have received repayment of all past due principal and interest unless the amounts contractually due are reasonably assured of repayment within a reasonable period of time, and there has been a sustained period of repayment performance (generally, six consecutive monthly payments), according to the original contractual terms or modified terms for loans whose contractual terms have been restructured in a manner which grants a concession to a borrower experiencing financial difficulties (“troubled debt restructuring”).

• The loan has become well secured and is in the process of collection.

Loan origination fees and commitment fees, offset by certain direct loan origination costs, are deferred and amortized as yield adjustments over the contractual lives of the related loans.

Loan Charge-Off Policy:For all loan types excluding overdraft accounts, we generally make a charge-off determination at or before 90 days past due. A collateral-dependent loan is partially charged down to the fair value of collateral securing it if: (1) it is deemed uncollectable, or (2) it has been classified as a loss by either our internal loan review process or external examiners. A non-collateral-dependent loan is partially charged down to its net realizable value under the same circumstances. Overdraft accounts are generally charged off when they exceed 60 days past due.

Acquired Loans: Acquired loans are recorded at their estimated fair values at acquisition date in accordance with ASC 805 Business Combinations, factoring in credit losses expected to be incurred over the life of the loan. Accordingly, an allowance for loan losses is not carried over or recorded for acquired loans as of the acquisition date.

We estimated the fair value of acquired loans at the acquisition date based on a discounted cash flow methodology that considered factors including the type of loan and related collateral, risk classification, fixed or variable interest rate, term of loan, whether or not the loan was amortizing, and current discount rates. Loans, except for purchased credit impaired ("PCI") loans, were grouped together according to similar risk characteristics and treated in the aggregate when applying various valuation techniques. Expected cash flows incorporated our best estimate of key assumptions at the time, such as property values, default rates, loss severity and prepayment speeds. Discount rates were based on market rates for new originations of comparable loans, where available, and included adjustments for liquidity

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factors. To the extent comparable market rates were not readily available, a discount rate was derived based on the assumptions of market participants' cost of funds, servicing costs and return requirements for comparable risk assets. In either case, the discount rate did not include a factor for credit losses, as that had been considered in estimating the cash flows. The process of calculating fair values of acquired loans, including estimates of losses expected to be incurred over the estimated remaining lives of the loans at acquisition date and ongoing updates to Management's expectation of future cash flows, requires significant subjective judgments and assumptions. The economic environment and lack of market liquidity and transparency are factors that have influenced, and may continue to affect, these assumptions and estimates.

We acquired loans with evidence of significant credit quality deterioration subsequent to their origination and for which it was probable, at acquisition, that we would be unable to collect all contractually required payments. Management applied significant subjective judgment in determining which loans were PCI loans. Evidence of credit quality deterioration as of the purchase date may include data such as past due and nonaccrual status, risk grades and charge-off history. Revolving credit agreements (e.g., home equity lines of credit and revolving commercial loans) where the borrower had revolving rights at acquisition date were not considered PCI loans because the timing and amount of cash flows could not be reasonably estimated.

The difference between the undiscounted expected cash flows expected to be collected and the fair value at acquisition date ("accretable difference") is accreted into interest income at a level yield of return over the estimated remaining life of the PCI loan, provided that the timing and amount of future cash flows is reasonably estimable. The accretable yield is affected by:

• Changes in interest rate indices for variable rate loans – Expected future cash flows are based on the variable rates in effect at the time of the regular evaluations of cash flows expected to be collected;

• Changes in prepayment assumptions – Prepayments affect the estimated life of the loans which may change the amount of interest income, and possibly principal, expected to be collected; and

• Changes in the expected principal and interest payments over the estimated life – Updates to expected cash flows are driven by the credit outlook and actions taken with borrowers. Changes in expected future cash flows from loan modifications are included in the regular evaluations of cash flows expected to be collected.

The cash flows expected to be collected are updated each quarter based on current assumptions regarding default rates, loss severities, and other factors that are reflective of current financial conditions of the borrowers and the market conditions. Probable decreases in expected cash flows after acquisition result in impairment recorded as a specific allowance for loan losses or a charge-off to the allowance. Impairment is calculated as the present value of the expected future cash flows on the PCI loan, discounted at the loan's effective interest rate implicit in the loan.

The nonaccretable difference on the date of acquisition is defined as the difference between the contractually required payments and the cash flows expected to be collected, considering the result of prepayments, and is not recorded.

For purposes of accounting for the PCI loans from past business combinations, we elected not to apply the pooling method but to account for these loans individually. Disposals of loans, which may include sales of loans to third parties, receipt of payments in full by the borrower, or foreclosure of the collateral, result in removal of the loan from the PCI loan portfolio at its carrying amount. If a PCI loan pays off earlier than expected, a gain is recorded as interest income when the payoff amount exceeds the recorded investment.

For acquired loans not considered credit impaired ("non-PCI"), we recognize the entire fair value discount accretion to interest income, based on contractual cash flows using an effective interest rate method for term loans, and on a straight line basis for revolving lines. When a non-PCI loan is placed on non-accrual status subsequent to acquisition, accretion stops until the loan is returned to accrual status. The level of accretion on non-PCI loans varies from period to period due to maturities and early pay-offs of these loans during the reporting periods. Subsequent to acquisition, if the probable and estimable losses for non-PCI loans exceed the amount of the remaining unaccreted discount, the excess is established as an allowance for loan losses.

For further information regarding our acquired loans, see Note 3, Loans and Allowance for Loan Losses.

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Allowance for Loan Lossesis based upon estimates of loan losses and is maintained at a level considered adequate to provide for probable losses inherent in the loan portfolio. The allowance is increased by provisions for loan losses charged against earnings and reduced by charge-offs, net of recoveries.

In periodic evaluations of the adequacy of the allowance balance, Management considers current economic conditions, known and inherent risks in the portfolio, adverse situations that may affect the borrower's ability to repay, the estimated value of any underlying collateral, our past loan loss experience and other factors. The ALLL is based on estimates, and ultimate losses may vary from current estimates. Our Board of Directors' Asset/Liability Management Committee (“ALCO”) reviews the adequacy of the ALLL at least quarterly.

The overall allowance consists of 1) specific allowances for individually identified impaired loans ("ASC 310-10") and 2) general allowances for pools of loans ("ASC 450-20"), which incorporate quantitative (e.g., historical loan loss rates) and qualitative risk factors (e.g., portfolio growth and trends, credit concentrations, economic and regulatory factors, etc.).

The first component, specific allowances, results from the analysis of identified problem credits and the evaluation of sources of repayment including collateral, as applicable. Through Management's ongoing loan grading and credit monitoring process, individual loans are identified that have conditions indicating the borrower may be unable to pay all amounts due in accordance with the contractual terms. These loans are evaluated for impairment individually by Management. Management considers an originated loan to be impaired when it is probable we will be unable to collect all amounts due according to the contractual terms of the loan agreement. When the fair value of the impaired loan is less than the recorded investment in the loan, the difference is recorded as an impairment through the establishment of a specific allowance. For loans determined to be impaired, the extent of the impairment is measured based on the present value of expected future cash flows discounted at the loan's effective interest rate at origination (for originated loans), based on the loan's observable market price, or based on the fair value of the collateral if the loan is collateral dependent or if foreclosure is imminent. Generally with problem credits that are collateral dependent, we obtain appraisals of the collateral at least annually. We may obtain appraisals more frequently if we believe the collateral value is subject to market volatility, if a specific event has occurred to the collateral, or if we believe foreclosure is imminent.

The second component is an estimate of the probable inherent losses in each loan pool with similar characteristics. This analysis encompasses the entire loan portfolio, excluding individually identified impaired loans and acquired loans whose purchase discount has not been fully accreted. Under our allowance model, loans are evaluated on a pool basis by federal regulatory reporting codes ("CALL codes" or "segments"), which are further delineated by assigned credit risk ratings, as described in Note 3, Loans and Allowance for Loan Losses. Segments include the following:

• Loans secured by real estate:

-     1-4 family residential construction loans

-     Other construction loans and all land development and other land loans

-     Secured by farmland (including residential and other improvements)

-     Revolving, open-end loans secured by 1-4 family residential properties and extended under lines of credit

-     Closed-end loans secured by 1-4 family residential properties, secured by first liens

-     Closed-end loans secured by 1-4 family residential properties, secured by junior liens

-     Secured by multifamily (5 or more) residential properties

-     Loans secured by owner-occupied non-farm nonresidential properties

-     Loans secured by other non-farm nonresidential properties

• Loans to finance agricultural production and other loans to farmers

• Commercial and industrial loans

• Loans to individuals for household, family and other personal expenditures (i.e., consumer loans)

• Other loans

The model determines general allowances by loan segment based on quantitative (loss history) and qualitative risk factors. Qualitative internal and external risk factors include, but are not limited to, the following:

• Changes in the nature and volume of the loan portfolio.

• Changes in the volume and severity of past due loans, the volume of non-accruals loans, and the volume and severity of adversely classified or graded loans.

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• The existence and effect of individual loan and loan segment concentrations.

• Changes in lending policies and procedures, including changes in underwriting standards and collection, charge-off, and recovery practices not considered elsewhere.

• Changes in the experience, ability, and depth of lending management and other relevant staff.

• Changes in the quality of our systematic loan review processes.

• Changes in economic and business conditions, and developments that affect the collectability of the portfolio.

• Changes in the value of underlying collateral, where applicable.

• The effect of other external factors such as legal and regulatory requirements on the level of estimated credit losses in the portfolio.

• The effect of acquisitions of other loan portfolios on our infrastructure, including risk associated with entering new geographic areas as a result of such acquisitions.

• The presence of specialized lending segments in the portfolio.

Beginning with the quarter ended March 31, 2016, Management enhanced its methodology for determining the quantitative and qualitative risk factors assigned to unimpaired loans in order to capture historical loss information at the loan level, track loss migration through risk grade deterioration, increase efficiencies related to performing the calculations, and refine how we incorporate environmental and other unique risk elements into our estimation of credit losses. The changes in methodology did not result in a material difference in general allowances. Prior to March 31, 2016, under the Bank's allowance model, each segment was assigned a quantitative loss factor that was primarily based on a rolling twenty-quarter look-back at our historical losses for that particular segment, as well as a number of other assumptions. Under the current methodology, the quantitative risk factor for each segment utilizes the greater of either the historical loss method based on a rolling twenty-four-quarter look-back period or migration analysis loss method based on loss history beginning March 2010.

Under the historical loss method, quarterly loss rates are calculated for each segment by dividing annualized net charge-offs during each quarter by the quarter's average segment balances. The quarterly loss rates are averaged over the entire loss history period. Under the migration analysis method, loss rates are calculated at the risk grade and segment levels by dividing the net charge-off amount by the total segment balance at the beginning of each migration period where the charged-off loan in question was present. Migration loss rates are averaged for each risk grade and segment for the entire loss history period. For each segment, the loss rates that result in the larger of the migration loss reserves or segment historical loss reserves are applied to the current loan balances. Qualitative factors are combined with these quantitative factors at the segment level to arrive at the overall general allowances.

We establish specific allowances to account for credit deterioration for probable decreases in cash flows for PCI loans subsequent to acquisition. The estimated cash flows expected to be collected on PCI loans is updated quarterly and requires the use of key assumptions and estimates based on factors such as the current economic environment, changes in collateral values, loan workout plans, changes in the probability of default, loss severities, and prepayments. Probable decreases in expected cash flows after acquisition result in impairment recorded as a specific allowance for loan losses or a charge-off to the allowance. Impairment is calculated as the present value of the expected future cash flows on the PCI loan, discounted at the loan's effective interest rate implicit in the loan.

While we believe we use the best information available to determine the allowance for loan losses, our results of operations could be significantly affected if circumstances differ substantially from the assumptions used in determining the allowance. A decline in local and national economic conditions, or significant changes in other assumptions, could result in a material increase in the allowance for loan losses and may adversely affect our financial condition and results of operations. In addition, the determination of the amount of the allowance for loan losses is subject to review by bank regulators as part of their routine examination process, which may result in the establishment of additional allowance for loan losses based upon their judgment of information available to them at the time of their examination.

For further information regarding the allowance for loan losses, see Note 3, Loans and Allowance for Loan Losses.

Allowance for Losses on Off-Balance Sheet Commitments: We make commitments to extend credit to meet the financing needs of our customers in the form of loans or standby letters of credit. We are exposed to credit loss in the event that a decline in credit quality of the borrower leads to nonperformance. We record an allowance for losses on these off-balance sheet commitments based on estimates of probability that these commitments will be drawn upon according to our historical utilization experience on different types of commitments and expected loss severity. This allowance is included in interest payable and other liabilities on the consolidated statements of condition.

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Transfers of Financial Assets: We have entered into certain participation agreements with other organizations. We account for these transfers of financial assets as sales when control over the transferred financial assets has been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets and liabilities have been isolated from us, (2) the transferee has the right to pledge or exchange the assets (or beneficial interests) it received, free of conditions that constrain it from taking advantage of that right, beyond a trivial benefit and (3) we do not maintain effective control over the transferred financial assets or third-party beneficial interests related to those transferred assets. No gain or loss has been recognized by us on the sale of these participation interests in 2016, 2015 and 2014.

Premises and Equipment: Premises and equipment consist of leasehold improvements, furniture, fixtures, software and equipment and are stated at cost, less accumulated depreciation and amortization, which are calculated on a straight-line basis. Furniture and fixtures are depreciated over eight years and equipment is generally depreciated over three to twenty years. Leasehold improvements are amortized over the lesser of their estimated useful lives or the terms of the leases. When assets are sold or otherwise disposed of, the cost and related accumulated depreciation or amortization are removed from the accounts and any resulting gain or loss is recognized in income for the period. The cost of maintenance and repairs is charged to expense as incurred.

Business Combinations: Business combinations are accounted for under the acquisition method of accounting in accordance with ASC 805, Business Combinations. Under the acquisition method the acquiring entity in a business combination recognizes the acquired assets and assumed liabilities at their estimated fair values as of the date of acquisition. Any excess of the purchase price over the fair value of net assets and other identifiable intangible assets acquired is recorded as goodwill. To the extent the fair value of net assets acquired, including other identifiable assets, exceed the purchase price, a bargain purchase gain is recognized. Assets acquired and liabilities assumed from contingencies must also be recognized at fair value, if the fair value can be determined during the measurement period. Results of operations of an acquired business are included in the statement of operations from the date of acquisition. Acquisition-related costs, including conversion and restructuring charges, are expensed as incurred.

Goodwill and Other Intangible Assets: Goodwill is determined as the excess of the fair value of the consideration transferred, plus the fair value of any noncontrolling interests in the acquiree, over the fair value of the net assets acquired and liabilities assumed as of the acquisition date. Goodwill that arises from a business combination is periodically evaluated for impairment at the reporting unit level, at least annually. Intangible assets with definite useful lives are amortized over their estimated useful lives to their estimated residual values. Core deposit intangible represents the estimated future benefit of deposits related to an acquisition and is booked separately from the related deposits and evaluated periodically for impairment. The core deposit intangible asset is amortized on an accelerated method over its estimated useful life of ten years. At December 31, 2016, the future estimated amortization expense is as follows:

(in thousands)	2017		2018		2019		2020		2021		Thereafter		Total
Core deposit intangible amortization	$	472	$	413	$	388	$	365	$	343	$	599	$	2,580

We make a qualitative assessment of whether it is more likely than not that the fair value of a reporting unit where goodwill is assigned is less than its carrying amount before applying a two-step goodwill impairment test. If we conclude that it is more likely than not that the fair value is more than its carrying amount, we do not perform the two-step impairment test. Goodwill is tested for impairment on an interim basis if circumstances change or an event occurs between annual tests that would more likely than not reduce the fair value of the reporting unit below its carrying amount. The qualitative assessment includes adverse events or circumstances identified that could negatively affect the reporting units’ fair value as well as positive and mitigating events. Such indicators may include, among others, a significant change in legal factors or in the general business climate, significant change in our stock price and market capitalization, unanticipated competition, and an action or assessment by a regulator.

Other Real Estate Owned ("OREO"):OREO is comprised of property acquired through foreclosure, in substance repossession or acceptance of deeds-in-lieu of foreclosure when the related loan receivable is de-recognized. OREO is recorded at fair value of the collateral less estimated costs to sell, establishing a new cost basis, and subsequently accounted for at the lower of cost or fair value less estimated costs to sell. Any shortfall of collateral value from the recorded investment of the related loan is recognized as loss at the time of foreclosure and is charged against the allowance for loan losses. Fair value of collateral is generally based on an independent appraisal of the property.

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Revenues and expenses associated with OREO, and subsequent adjustments to the fair value of the property and to the estimated costs of disposal, are realized and reported as a component of non-interest income and expense when incurred.

Bank Owned Life Insurance ("BOLI"): The Bank owns life insurance policies on certain key current and former officers. BOLI is recorded in interest receivable and other assets on the consolidated statements of condition at the amount that can be realized under the insurance contract at the period end, which is the cash surrender value adjusted for other charges or amounts due that are probable at settlement.

Federal Home Loan Bank of San Francisco ("FHLB") Stock: The Bank is a member of the FHLB. Members are required to own a certain amount of stock based on the level of borrowings and other factors. Our investment in FHLB stock is carried at cost and is included as part of interest receivable and other assets on the consolidated statements of condition. We periodically evaluate FHLB stock for impairment based on ultimate recovery of par value. Both cash and stock dividends are reported as non-interest income.

Investments in Low Income Housing Tax Credit Funds: We have invested in limited partnerships that were formed to develop and operate affordable housing projects for low or moderate income tenants throughout California. Our ownership in each limited partnership is less than two percent. In accordance with ASU No. 2014-01, Investments - Equity Method and Joint Ventures (Topic 323), we elected to account for the investments in qualified affordable housing tax credit funds using the proportional amortization method. Under the proportional amortization method, the initial cost of the investment is amortized in proportion to the tax credits and other tax benefits received and the net investment performance is recognized as part of income tax expense (benefit). Each of the partnerships must meet the regulatory minimum requirements for affordable housing for a minimum 15-year compliance period to fully utilize the tax credits. If the partnerships cease to qualify during the compliance period, the credit may be denied for any period in which the project is not in compliance and a portion of the credit previously taken is subject to recapture with interest.

Employee Stock Ownership Plan (“ESOP”): We recognize compensation cost of the ESOP contribution when funds become committed for the purchase of Bancorp's common shares into the ESOP in the year in which the employees render service entitling them to the contribution. If we contribute stock, the compensation cost is the fair value of the shares when they are committed to be released, i.e. when the number of shares becomes known. During 2016, 2015 and 2014, the Bank made only cash contributions to the ESOP without leveraging.

Income Taxes: Income taxes reported in the consolidated financial statements are computed based on an asset and liability approach. We recognize the amount of taxes payable or refundable for the current year and we record deferred tax assets and liabilities for future tax consequences attributable to differences between the financial statement carrying amount of existing assets and liabilities and their respective tax bases using enacted tax rates in effect for the year in which the temporary differences are expected to reverse. We record net deferred tax assets to the extent it is more likely than not that they will be realized. In evaluating our ability to recover the deferred tax assets and the need to establish a valuation allowance against the deferred tax assets, Management considers all available positive and negative evidence, including scheduled reversals of deferred tax liabilities, projected future taxable income, and tax planning strategies. In projecting future taxable income, Management develops assumptions including the amount of future state and federal pretax operating income, the reversal of temporary differences, and the implementation of feasible and prudent tax planning strategies. These assumptions require significant judgment about the forecasts of future taxable income and are consistent with the plans and estimates being used to manage the underlying business. Bancorp files consolidated federal and combined state income tax returns.

We recognize the financial statement effect of a tax position when it is more likely than not, based on the technical merits and all available evidence, that the position will be sustained upon examination, including the resolution through protests, appeals or litigation processes. For tax positions that meet the more-likely-than-not threshold, we measure and record the largest amount of tax benefit that is greater than fifty percent likely of being realized upon ultimate settlement with the taxing authority. The remainder of the benefits associated with tax positions taken is recorded as unrecognized tax benefits, along with any related interest and penalties. Interest and penalties related to unrecognized tax benefits are recorded in tax expense.

In deciding whether or not our tax positions taken meet the more-likely-than-not recognition threshold, we must make judgments and interpretations about the application of inherently complex state and federal tax laws. To the extent tax authorities disagree with tax positions taken by us, our effective tax rates could be materially affected in the period

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of settlement with the taxing authorities. Revision of our estimate of accrued income taxes also may result from our own income tax planning, which may affect effective tax rates and results of operations for any reporting period.

We present an unrecognized tax benefit as a reduction of a deferred tax asset for a net operating loss ("NOL") carryforward, or similar tax loss or tax credit carryforward, rather than as a liability, when (1) the uncertain tax position would reduce the NOL or other carryforward under the tax law of the applicable jurisdiction and (2) we intend to and are able to use the deferred tax asset for that purpose. Otherwise, the unrecognized tax benefit is presented as a liability instead of being netted with deferred tax assets.

Earnings per share (“EPS”) are based upon the weighted average number of common shares outstanding during each year. The following table shows: 1) weighted average basic shares, 2) potentially dilutive weighted average common shares related to stock options, unvested restricted stock awards and stock warrant, and 3) weighted average diluted shares. Basic EPS are calculated by dividing net income by the weighted average number of common shares outstanding during each period, excluding unvested restricted stock awards. Diluted EPS are calculated using the weighted average number of potentially dilutive common shares. The number of potentially dilutive common shares included in quarterly diluted EPS is computed using the average market prices during the three months included in the reporting period under the treasury stock method. The number of potentially dilutive common shares included in year-to-date diluted EPS is a year-to-date weighted average of potentially dilutive common shares included in each quarterly diluted EPS computation. We have two forms of our outstanding common stock: common stock and unvested restricted stock awards. Holders of unvested restricted stock awards receive non-forfeitable dividends at the same rate as common shareholders and they both share equally in undistributed earnings. Under the two-class method, the difference in EPS is not significant for these participating securities.

(in thousands, except per share data)	2016		2015		2014
Weighted average basic shares outstanding	6,073		5,966		5,893
Potentially dilutive common shares related to:
Stock options	34		41		43
Unvested restricted stock awards	8		5		5
Warrant	—		53		65
Weighted average diluted shares outstanding	6,115		6,065		6,006
Net income	$	23,134	$	18,441	$	19,771
Basic EPS	$	3.81	$	3.09	$	3.35
Diluted EPS	$	3.78	$	3.04	$	3.29
Weighted average anti-dilutive shares not included in the calculation of diluted EPS	64		36		45

Share-Based Compensation: All share-based payments, including stock options and restricted stock, are recognized as stock-based compensation expense in the statements of comprehensive income based on the grant-date fair value of the award with a corresponding increase in common stock. The grant-date fair value of the award is amortized on a straight-line basis over the requisite service period, which is generally the vesting period. The stock-based compensation expense excludes stock grants to directors as compensation for their services, which are recognized as director expenses separately based on the grant-date value of the stock. See Note 8, Stockholders' Equity and Stock Option Plans for further discussion.

We determine fair value of stock options at the grant date using a Black-Scholes pricing model that takes into account the stock price at the grant date, the exercise price, the expected life of the option, the volatility of the underlying stock, the expected dividend yield and the risk-free interest rate over the expected life of the option. The expected term of options granted is derived from historical data on employee exercises and post-vesting employment termination behavior. The risk-free rate for periods within the expected life of the option is based on the U.S. Treasury yield curve in effect at the time of the grant. Expected volatility is based on the historical volatility of the common stock over the most recent period that is generally commensurate with the expected life of the options. In addition, we estimate forfeitures based on historical forfeiture experience and expense is recognized only for those shares expected to vest. The Black-Scholes option valuation model requires the input of highly subjective assumptions, including the expected life of the stock-based award and stock price volatility. The assumptions used represent Management's best estimates based on historical information, but these estimates involve inherent uncertainties and the application of Management's judgment. As a result, if other assumptions had been used, the recorded stock-based compensation expense could

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have been materially different from that recorded in the consolidated financial statements. The fair value of restricted stock is based on the stock price on grant date.

Derivative Financial Instruments and Hedging Activities - Fair Value Hedges: All of our interest rate swap contracts are designated and qualified as fair value hedges. The terms of our interest rate swap contracts are closely aligned to the terms of the designated fixed-rate loans. The hedging relationships are tested for effectiveness on a quarterly basis. The interest rate swaps are carried on the consolidated statements of condition at their fair value in other assets (when the fair value is positive) or in other liabilities (when the fair value is negative). The changes in the fair value of the interest rate swaps are recorded in interest income. The unrealized gains or losses due to changes in fair value of the hedged fixed-rate loans are recorded as an adjustment to the hedged loans and offset in interest income. For derivative instruments executed with the same counterparty under a master netting arrangement, we do not offset fair value amounts of interest rate swaps in liability position with the ones in asset position.

From time to time, we make firm commitments to enter into long-term fixed-rate loans with borrowers backed by yield maintenance agreements and simultaneously enter into forward interest rate swap agreements with correspondent banks to mitigate the change in fair value of the yield maintenance agreement. Prior to loan funding, yield maintenance agreements with net settlement features that meet the definition of a derivative are considered as non-designated hedges and are carried on the consolidated statements of condition at their fair value in other assets (when the fair value is positive) or in other liabilities (when the fair value is negative). The offsetting changes in the fair value of the forward swap and the yield maintenance agreement are recorded in interest income. When the fixed-rate loans are originated, the forward swaps are designated to offset the change in fair value in the loans. Subsequent to the point of the swap designations, the related yield maintenance agreements are no longer considered derivatives. Their fair value at the designation date was recorded in other assets and is amortized using the effective yield method over the life of the respective designated loans.

The net effect of the change in fair value of interest rate swaps, the amortization of the yield maintenance agreement and the change in the fair value of the hedged loans result in an insignificant amount of hedge ineffectiveness recognized in interest income. For further detail, see Note 14, Derivative Financial Instruments and Hedging Activities.

Advertising Costsare expensed as incurred. For the years ended December 31, 2016, 2015, and 2014, advertising costs totaled $565 thousand, $334 thousand, and $400 thousand, respectively.

Comprehensive Income includes net income and changes in the unrealized gain or loss of available-for-sale investment securities, net of related taxes, reported on the statements of comprehensive income and as components of stockholders' equity.

Fair Value Measurements: We use fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. We base our fair values on the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Securities available-for-sale and derivatives are recorded at fair value on a recurring basis. Additionally, from time to time, we may be required to record certain assets at fair value on a non-recurring basis, such as purchased loans recorded at acquisition date, certain impaired loans, other real estate owned and securities held-to-maturity that are other-than-temporarily impaired. These non-recurring fair value adjustments typically involve write-downs of individual assets due to application of lower-of-cost or market accounting.

When we develop our fair value measurement process, we maximize the use of observable inputs. Whenever there is no readily available market data, we use our best estimates and assumptions in determining fair value, but these estimates involve inherent uncertainties and the application of Management's judgment. As a result, if other assumptions had been used, our recorded earnings or disclosures could have been materially different from those reflected in these financial statements.

For detailed information on our use of fair value measurements and our related valuation methodologies, see Note 9, Fair Value of Assets and Liabilities.

Use of Estimates: The preparation of financial statements in conformity with generally accepted accounting principles in the United States of America requires Management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent amounts of revenues and expenses during the reporting

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period. Actual results could differ from those estimates. Significant accounting estimates reflected in the consolidated financial statements include ALLL, other-than-temporary impairment of investment securities, accrued liabilities, accounting for income taxes and fair value measurements (including fair values of acquired assets and assumed liabilities at acquisition dates) as discussed in the Notes herein.

Recently Adopted and Issued Accounting Standards

In April 2015, the FASB issued ASU No. 2015-05, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40) Customer's Accounting for Fees Paid in a Cloud Computing Arrangement. This ASU was further clarified in December 2015 by ASU No. 2015-19, Technical Corrections and Improvements. These amendments provide guidance about a customer's accounting for fees paid in a cloud computing arrangement. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement as an intangible asset. If a cloud computing arrangement does not include a software license, then the customer should account for the arrangement as a service contract. The two criteria that must be met to be considered a software license are: 1) the customer has the contractual right to take possession of the software at any time during the hosting period without significant penalty; and 2) it is feasible for the customer to either run the software on its own hardware or contract with another party unrelated to the vendor to host the software. We adopted the accounting standards on a prospective basis during the first quarter of 2016 with no material impact on our financial condition or results of operations.

In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-09, Revenue from Contracts with Customers (Topic 606). This ASU is a converged standard involving FASB and International Financial Reporting Standards that provides a single comprehensive revenue recognition model for all contracts with customers across transactions and industries. The core principal of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount and at a time that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Subsequent updates related to Revenue from Contracts with Customers (Topic 606) are as follows:

• August 2015 ASU No. 2015-14 - Deferral of the Effective Date, institutes a one-year deferral of the effective date of this amendment to annual reporting periods beginning after December 15, 2017. Early application is permitted only as of annual periods beginning after December 15, 2016, including interim reporting periods within that reporting period.

• March 2016 ASU No. 2016-08 - Principal versus Agent Considerations (Reporting Revenue Gross versus Net), clarifies the implementation guidance on principal versus agent considerations and on the use of indicators that assist an entity in determining whether it controls a specified good or service before it is transferred to the customer.

• April 2016 ASU No. 2016-10 - Identifying Performance Obligations and Licensing, provides guidance in determining performance obligations in a contract with a customer and clarifies whether a promise to grant a license provides a right to access or the right to use intellectual property.

• May 2016 ASU No. 2016-12 - Narrow Scope Improvements and Practical Expedients, gives further guidance on assessing collectability, presentation of sales taxes, noncash consideration, and completed contracts and contract modifications at transition.

• December 2016 ASU No. 2016-20 - Technical Corrections and Improvements to Topic 606, further clarifies specific aspects of previously issued guidance or corrects unintended application of the guidance.

Our revenue is mainly comprised of net interest income on financial assets and financial liabilities, which is explicitly excluded from the scope of ASU 2014-09. While the recognition of certain revenue arrangements of components of our non-interest income may be affected by the ASU, we do not expect it to have a material impact on our financial condition and results of operations.

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. The amendments in this ASU make improvements to accounting standards related to financial instruments, including the following:

• Requires equity investments, except for those accounted for under the equity method of accounting or those that result in consolidation of the investee, to be measured at fair value with changes in fair value recognized

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in net income. However, an entity may choose to measure equity investments that do not have readily determinable fair values at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer.

• Simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment. When impairment exists, an entity is required to measure the investment at fair value.

• Eliminates the requirement to disclose the method(s) and significant assumptions used to estimate the fair value that is currently required to be disclosed for financial instruments measured at amortized cost on the balance sheet.

• Requires public companies to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes.

• Requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset (i.e., securities or loans and receivables) on the balance sheet or the accompanying notes to the financial statements.

• Clarifies that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity's other deferred tax assets.

ASU 2016-01 is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. This ASU may affect our financial statement presentation and related footnotes, but we do not expect it to have a material impact on our financial condition or results of operations.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). The amendments in this ASU intend to increase transparency and comparability among organizations by recognizing an asset, which represents the right to use the asset for the lease term, and a lease liability, which is a lessee's obligation to make lease payments measured on a discounted basis. This ASU generally applies to leasing arrangements exceeding a twelve month term. ASU 2016-02 is effective for annual periods, including interim periods within those annual periods beginning after December 15, 2018 and requires a modified retrospective method of adoption. Early application of the amendments is permitted. We intend to adopt this ASU during the first quarter of 2019, as required, and are currently evaluating accounting solutions. As of December 31, 2016, our undiscounted operating lease obligations that were off-balance sheet totaled $21.1 million (See Note 12, Commitments and Contingencies). Upon adoption of this ASU, the present values of leases currently classified as operating leases will be recognized as lease assets and liabilities on our balance sheet. Additional disclosures of key information about our leasing arrangements will also be required. We do not expect the ASU will have a material impact on our capital ratios or return on average assets when adopted and we are currently evaluating the effect the ASU will have on other components of our financial condition and results of operations.

In March 2016, the FASB issued ASU No. 2016-05, Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships. A contract novation refers to replacing one of the parties to a derivative instrument with a new party. This ASU clarifies that a change in counterparty in a derivative instrument does not, in and of itself, require dedesignation of that hedging relationship and therefore discontinue the application of hedge accounting. ASU 2016-05 is effective for financial statements issued for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. We have evaluated the requirements of this ASU and have determined that it will not have a material impact on our financial condition or results of operations upon adoption in the first quarter of 2017.

In March 2016, the FASB issued ASU No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. This ASU identifies areas for simplification involving several aspects of accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, forfeiture accounting, and classifications on the statement of cash flows. ASU 2016-09 is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. We have implemented the requirements of this ASU and have elected to change our accounting policy to recognize forfeitures as they occur starting January 1, 2017, which might cause earnings volatility in the future if there are material forfeitures. ASU 2016-09 also requires that all income tax effects related to settlements of share-based payment awards be reported in earnings as an increase (or decrease) to income tax expense. Previously, income tax benefits at settlement of an award were reported as an increase (or decrease) to stockholders' equity to the extent that those

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benefits were greater than (or less than) the income tax benefits recognized in earnings during the award's vesting period. The requirement to report those income tax effects in earnings will be applied to settlements occurring on or after January 1, 2017. These changes and those of the remaining provisions of ASU 2016-09 are not expected to have significant impact on our financial condition and results of operations.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. Under the new guidance, entities will be required to measure expected credit losses by utilizing forward-looking information to assess an entity's allowance for credit losses. The measurement of expected credit losses is based on historical experience, current conditions and reasonable and supportable forecasts that affect the collectability of a credit over its remaining life. In addition, the ASU amends the accounting for potential credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. ASU 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. As discussed previously under Allowance For Loan Losses, Management refined our allowance for loan loss model in 2016 and enhanced our loan-level data collection and methodology for analyzing credit losses in preparation for the new accounting standards. We will continue our evaluation of the provisions of this ASU and will be monitoring developments, additional guidance and the potential outcome the amendments will have on our financial condition and results of operations upon adoption in the first quarter of 2020.

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. This ASU provides guidance on how to present and classify eight specific cash flow topics in the statement of cash flows. The ASU is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The amendments should be applied using a retrospective transition method to each period presented, if practical. This ASU may affect our financial statement presentation, but we do not expect it to have a material impact on our financial condition, statements of cash flows, or results of operations.

In January 2017, the FASB issued ASU No. 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. The amendments are intended to help companies evaluate whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses and provide a more robust framework to use in determining when a set of assets and activities is a business. The amendments are effective for annual periods after December 31, 2017, including interim periods within those periods. We will consider these amendments in our evaluation of the accounting for any future business acquisitions or disposals of assets, upon adoption in first quarter of 2018.

In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This amendment simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test, which would measure a goodwill impairment loss by comparing the implied fair value of goodwill with the carrying amount of that goodwill. Instead, an entity will perform only Step 1 of its quantitative goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount, and then recognizing an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value. The loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. The new guidance does not amend the optional qualitative assessment of goodwill impairment, which Bancorp currently uses. The ASU is effective for fiscal years beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. We anticipate that this ASU will simplify our evaluation of the impairment of goodwill and do not expect it to have a material impact on our financial condition and results of operations.

Note 2:  Investment Securities

Our investment securities portfolio consists of obligations of state and political subdivisions, corporate bonds, U.S. government agency securities, including mortgage-backed securities (“MBS”) and collateralized mortgage obligations (“CMOs”) issued or guaranteed by Federal National Mortgage Association ("FNMA"), Federal Home Loan Mortgage Corporation ("FHLMC"), or Government National Mortgage Association ("GNMA"), debentures issued by government-sponsored agencies such as FNMA, Federal Farm Credit Bureau, FHLB and FHLMC, as well as privately issued CMOs, as reflected in the table below:

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	December 31, 2016									December 31, 2015
	Amortized		Fair		Gross Unrealized					Amortized		Fair		Gross Unrealized
(in thousands)	Cost		Value		Gains		(Losses)			Cost		Value		Gains		(Losses)
Held-to-maturity:
Obligations of state and   political subdivisions	$	30,856	$	31,544	$	694	$	(6	)	$	42,919	$	44,146	$	1,246	$	(19	)
Corporate bonds	3,519		3,518		—		(1		)	15,072		15,098		42		(16		)
MBS pass-through securities issued by FHLMC and FNMA	10,063		10,035		126		(154		)	11,646		11,810		171		(7		)
Total held-to-maturity	44,438		45,097		820		(161		)	69,637		71,054		1,459		(42		)
Available-for-sale:
Securities of U.S. government agencies:
MBS pass-through securities issued by FHLMC and FNMA	193,998		190,566		145		(3,577		)	138,222		138,462		694		(454		)
CMOs issued by FNMA	13,790		13,772		91		(109		)	18,266		18,219		97		(144		)
CMOs issued by FHLMC	43,452		42,758		37		(731		)	22,889		22,932		82		(39		)
CMOs issued by GNMA	6,844		6,945		102		(1		)	10,326		10,480		169		(15		)
Debentures of government- sponsored agencies	35,486		35,403		7		(90		)	161,690		160,892		28		(826		)
Privately issued CMOs	419		419		1		(1		)	3,960		4,150		190		—
Obligations of state and political subdivisions	79,306		77,701		135		(1,740		)	57,110		57,673		580		(17		)
Corporate bonds	4,959		5,016		57		—			4,947		4,979		43		(11		)
Total available-for-sale	378,254		372,580		575		(6,249		)	417,410		417,787		1,883		(1,506		)
Total investment securities	$	422,692	$	417,677	$	1,395	$	(6,410	)	$	487,047	$	488,841	$	3,342	$	(1,548	)

The amortized cost and fair value of investment debt securities by contractual maturity at December 31, 2016 are shown below. Expected maturities may differ from contractual maturities if the issuers of the securities have the right to call or prepay obligations with or without call or prepayment penalties.

	December 31, 2016								December 31, 2015
	Held-to-Maturity				Available-for-Sale				Held-to-Maturity				Available-for-Sale
(in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Within one year	$	13,473	$	13,506	$	20,136	$	20,109	$	18,853	$	18,920	$	12,135	$	12,176
After one but within five years	16,706		17,150		58,334		58,267		31,677		32,360		188,007		187,326
After five years through ten years	3,000		3,125		113,576		110,842		8,580		8,969		64,899		64,999
After ten years	11,259		11,316		186,208		183,362		10,527		10,805		152,369		153,286
Total	$	44,438	$	45,097	$	378,254	$	372,580	$	69,637	$	71,054	$	417,410	$	417,787

Sales of investment securities and gross gains and losses are shown in the following table. The sales of the held-to-maturity securities were due to evidence of significant deterioration of the issuers' creditworthiness since purchase.

(in thousands)	2016			2015			2014
Available-for-sale:
Sales proceeds	$	68,673		$	2,099		$	2,436
Gross realized gains	$	458		$	7		$	4
Gross realized losses	$	(64	)	$	(1	)	$	(28	)
Held-to-maturity:
Sales proceeds	$	1,265		$	1,015		$	2,146
Gross realized gains	$	32		$	73		$	104
Gross realized losses	$	—		$	—		$	—

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Investment securities carried at $109.1 million and $87.9 million at December 31, 2016 and 2015, respectively, were pledged with the State of California: $108.3 million million and $87.1 million to secure public deposits in compliance with the Local Agency Security Program at December 31, 2016 and 2015, respectively, and $822 thousand and $840 thousand to provide collateral for trust deposits. In addition, investment securities carried at $2.1 million and $1.1 million were pledged to collateralize a Wealth Management and Trust Services (“WMTS”) checking account at December 31, 2016 and 2015, respectively.

As part of our ongoing review of our investment securities portfolio, we reassessed the classification of certain MBS pass-through and CMOs securities issued by FHLMC and FNMA. Effective February 24, 2017, we transferred $129 million of these securities, which we intend and have the ability to hold to maturity, from available-for-sale securities to held-to-maturity at fair value. The unrealized pre-tax loss of $3.0 million at the date of transfer remained in accumulated other comprehensive income and is amortized over the remaining lives of the securities.

Other-Than-Temporarily Impaired ("OTTI") Debt Securities

We have evaluated the credit of our investment securities and their issuers and/or insurers. Based on our evaluation, Management has determined that no investment security in our investment portfolio is other-than-temporarily impaired as of December 31, 2016. We do not have the intent, and it is more likely than not that we will not have to sell the remaining securities temporarily impaired at December 31, 2016 before recovery of the amortized cost basis.

One hundred thirty-four and fifty-four investment securities were in unrealized loss positions at December 31, 2016and 2015, respectively. Those securities are summarized and classified according to the duration of the loss period in the tables below:

December 31, 2016	< 12 continuous months					≥ 12 continuous months					Total securities  in a loss position
(in thousands)	Fair value		Unrealized loss			Fair value		Unrealized loss			Fair value		Unrealized loss
Held-to-maturity:
MBS pass-through securities issued by FHLMC and FNMA	$	2,250	$	(154	)						$	2,250	$	(154	)
Obligations of state and political subdivisions	3,362		(6		)						3,362		(6		)
Corporate bonds	3,518		(1		)						3,518		(1		)
Total held-to-maturity	9,130		(161		)	—		—			9,130		(161		)
Available-for-sale:
MBS pass-through securities issued by FHLMC and FNMA	162,016		(3,577		)						162,016		(3,577		)
CMOs issued by FNMA	9,498		(109		)						9,498		(109		)
CMOs issued by FHLMC	31,545		(731		)						31,545		(731		)
CMOs issued by GNMA	1,583		(1		)						1,583		(1		)
Debentures of government- sponsored agencies	19,951		(38		)	9,946		(52		)	29,897		(90		)
Obligations of state and political subdivisions	59,567		(1,740		)						59,567		(1,740		)
Privately issued CMO's	154		(1		)						154		(1		)
Total available-for-sale	284,314		(6,197		)	9,946		(52		)	294,260		(6,249		)
Total temporarily impaired securities	$	293,444	$	(6,358	)	$	9,946	$	(52	)	$	303,390	$	(6,410	)

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December 31, 2015	< 12 continuous months					> 12 continuous months					Total securities  in a loss position
(in thousands)	Fair value		Unrealized loss			Fair value		Unrealized loss			Fair value		Unrealized loss
Held-to-maturity:
MBS pass-through securities issued by FHLMC and FNMA	$	2,332	$	(7	)	$	—	$	—		$	2,332	$	(7	)
Obligations of state and political subdivisions	8,297		(19		)	—		—			8,297		(19		)
Corporate bonds	3,523		(15		)	1,999		(1		)	5,522		(16		)
Total held-to-maturity	14,152		(41		)	1,999		(1		)	16,151		(42		)
Available-for-sale:
MBS pass-through securities issued by FHLMC and FNMA	68,809		(454		)	—		—			68,809		(454		)
CMOs issued by FNMA	9,277		(80		)	3,158		(64		)	12,435		(144		)
CMOs issued by FHLMC	—		—			1,989		(39		)	1,989		(39		)
CMOs issued by GNMA	164		—			2,374		(15		)	2,538		(15		)
Debentures of government- sponsored agencies	136,064		(713		)	9,887		(113		)	145,951		(826		)
Obligations of state and political subdivisions	4,557		(15		)	579		(2		)	5,136		(17		)
Corporate bonds	2,986		(11		)	—		—			2,986		(11		)
Total available-for-sale	221,857		(1,273		)	17,987		(233		)	239,844		(1,506		)
Total temporarily impaired securities	$	236,009	$	(1,314	)	$	19,986	$	(234	)	$	255,995	$	(1,548	)

As of December 31, 2016, there was one debenture of government-sponsored agency security that had been in a continuous loss position for twelve months or more. We have evaluated it and believe that the decline in fair value is primarily driven by factors other than credit. It is probable that we will be able to collect all amounts due according to the contractual terms as it is supported by the U.S. Federal Government, which protects us from credit losses. Based upon our assessment of the credit fundamentals, we concluded that this security was not other-than-temporarily impaired at December 31, 2016.

One hundred thirty-three investment securities in our portfolio were in a temporary loss position for less than twelve months as of December 31, 2016, and their temporary loss positions mainly arose from changes in interest rates since purchase. They consisted of eighty-six obligations of U.S. state and political subdivisions, one corporate bond, thirty-one MBS securities, thirteen CMOs, one privately issued CMO and one debenture of government-sponsored agencies. The MBS, CMOs and debentures issued by government-sponsored agencies are supported by the U.S. Federal Government, which protects us from credit losses. Other temporarily impaired securities are deemed creditworthy after internal analysis of the issuers' latest financial information and credit enhancement. Additionally, all are rated as investment grade by at least one major rating agency. As a result of this impairment analysis, we concluded that these securities were not other-than-temporarily impaired at December 31, 2016.

Non-Marketable Securities

As a member of the FHLB, we are required to maintain a minimum investment in FHLB capital stock determined by the Board of Directors of the FHLB. The minimum investment requirements can increase in the event we increase our total asset size or borrowings with the FHLB. Shares cannot be purchased or sold except between the FHLB and its members at the $100 per share par value. We held $10.2 million and $8.4 million of FHLB stock recorded at cost in other assets on the consolidated statements of condition at December 31, 2016 and 2015, respectively. The carrying amounts of these investments are reasonable estimates of fair value because the securities are restricted to member banks and they do not have a readily determinable market value. Management does not believe that the FHLB stock is other-than-temporarily-impaired, due to FHLB's current financial position. On February 21, 2017, FHLB announced a cash dividend for the fourth quarter of 2016 at an annualized dividend rate of 9.08%to be distributed in mid-March 2017. Cash dividends paid on FHLB capital stock are recorded as non-interest income.

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As a member bank of Visa U.S.A., we hold 16,939 shares of Visa Inc. Class B common stock with a carrying value of zero, which is equal to our cost basis. These shares are restricted from resale until their conversion into Class A (voting) shares upon the termination of Visa Inc.'s Covered Litigation escrow account. As a result of the restriction, these shares are not considered available-for-sale and are not carried at fair value. When converting this Class B common stock to Class A common stock under the conversion rate of 1.6483, as of the latest SEC Form 10-Q filed by Visa, Inc. on February 2, 2017, and the closing stock price of Class A shares, the value of our shares of Class B common stock would have been $2.2 million at both December 31, 2016 and 2015. The conversion rate is subject to further reduction upon the final settlement of the covered litigation against Visa Inc. and its member banks. See Note 12, Commitments and Contingencies herein.

We invest in low income housing tax credit funds as a limited partner, which totaled $2.5 million and $2.7 million recorded in other assets as of December 31, 2016 and 2015, respectively. In 2016, we recognized $297 thousand of low income housing tax credits and other tax benefits, net of $236 thousand of amortization expense of low income housing tax credit investment, as a component of income tax expense. As of December 31, 2016, our unfunded commitments for these low income housing tax credit funds totaled $1.4 million. We did not recognize any impairment losses on these low income housing tax credit investments during 2016 or 2015.

Note 3:  Loans and Allowance for Loan Losses

Credit Quality of Loans

Virtually all of our loans are from customers located in California, primarily in Marin, Alameda, Sonoma, San Francisco and Napa counties. Approximately 85% of total loans were secured by real estate at both December 31, 2016 and 2015. At December 31, 2016, 65% of our loans were for commercial real estate, 83% of which were secured by real estate located in Marin, Sonoma, Alameda, San Francisco and Napa counties (California).

The following table shows outstanding loans by class and payment aging as of December 31, 2016 and 2015.

Loan Aging Analysis by Class
(in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential 1		Installment and other consumer		Total
December 31, 2016
30-59 days past due	$	283	$	—	$	—	$	—	$	77	$	—	$	2	$	362
60-89 days past due	—		—		—		—				—		49		49
90 days or more past due	—		—		—		—		91		—		—		91
Total past due	283		—		—		—		168		—		51		502
Current	218,332		247,713		724,228		74,809		117,039		78,549		25,444		1,486,114
Total loans 3	$	218,615	$	247,713	$	724,228	$	74,809	$	117,207	$	78,549	$	25,495	$	1,486,616
Non-accrual loans 2	$	—	$	—	$	—	$	—	$	91	$	—	$	54	$	145
December 31, 2015
30-59 days past due	$	36	$	—	$	1,096	$	1	$	—	$	—	$	249	$	1,382
60-89 days past due	—		—		—		—		633		—		89		722
90 days or more past due	21		—		—		—		99		—		—		120
Total past due	57		—		1,096		1		732		—		338		2,224
Current	219,395		242,309		714,783		65,494		111,568		73,154		22,301		1,449,004
Total loans 3	$	219,452	$	242,309	$	715,879	$	65,495	$	112,300	$	73,154	$	22,639	$	1,451,228
Non-accrual loans 2	$	21	$	—	$	1,903	$	1	$	171	$	—	$	83	$	2,179

¹ Our residential loan portfolio does not include sub-prime loans, nor is it our practice to underwrite loans commonly referred to as "Alt-A mortgages," the characteristics of which are loans lacking full documentation, borrowers having low FICO scores or higher loan-to-value ratios.

² There were no purchased credit impaired ("PCI") loans that had stopped accreting interest at December 31, 2016. Amounts include $1 thousand of PCI loans that had stopped accreting interest at December 31, 2015. Amounts exclude accreting PCI loans of $2.9 million and $3.7 million at December 31, 2016 and 2015, respectively, as we have a reasonable expectation about future cash flows to be collected and we continue to recognize accretable yield on these loans in interest income. There were no accruing loans past due more than ninety days at December 31, 2016 or 2015.

³ Amounts include net deferred loan origination costs of $883 thousand and $768 thousand at December 31, 2016 and 2015, respectively. Amounts are also net of unaccreted purchase discounts on non-PCI loans of $1.8 million and $3.2 million at December 31, 2016 and 2015, respectively.

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Our commercial loans are generally made to established small and mid-sized businesses to provide financing for their growth and working capital needs, equipment purchases and/or acquisitions.  Management examines historical, current, and projected cash flows to determine the ability of the borrower to repay obligations as agreed. Commercial loans are made based primarily on the identified cash flows of the borrower and secondarily on the underlying collateral and/or guarantor support. The cash flows of borrowers, however, may not occur as expected, and the collateral securing these loans may fluctuate in value. Most commercial and industrial loans are secured by the assets being financed, such as accounts receivable and/or inventory, and typically include a personal guarantee. We target stable businesses with guarantors that have proven to be resilient in periods of economic stress.  Typically, the guarantors provide an additional source of repayment for most of our credit extensions.

Commercial real estate loans are subject to underwriting standards and processes similar to commercial loans discussed above. We underwrite these loans to be repaid from cash flow and to be supported by real property collateral. Underwriting standards for commercial real estate loans include, but are not limited to, debt coverage and loan-to-value ratios. Furthermore, substantially all of our loans are guaranteed by the owners of the properties.  Commercial real estate loans may be adversely affected by conditions in the real estate markets or in the general economy. In the event of a vacancy, guarantors are expected to carry the loans until a replacement tenant can be found.  The owner's substantial equity investment provides a strong economic incentive to continue to support the commercial real estate projects. As such, we have generally experienced a relatively low level of loss and delinquencies in this portfolio.

Construction loans are generally made to developers and builders to finance construction, renovation and occasionally land acquisitions in anticipation of near-term development. These loans are underwritten after evaluation of the borrower's financial strength, reputation, prior track record, and independent appraisals. The construction industry can be affected by significant events, including: the inherent volatility of real estate markets and vulnerability to delays due to weather, change orders, inability to obtain construction permits, labor or material shortages, and price changes. Estimates of construction costs and value associated with the completed project may be inaccurate. Repayment of construction loans is largely dependent on the ultimate success of the project.

Consumer loans primarily consist of home equity lines of credit, other residential (tenancy-in-common, or “TIC”) loans, and installment and other consumer loans. We originate consumer loans utilizing credit score information, debt-to-income ratio and loan-to-value ratio analysis. Diversification among loan types, coupled with relatively small loan amounts that are spread across many individual borrowers, mitigates risk. Additionally, trend reports are reviewed by Management on a regular basis. Our residential loan portfolio includes TIC units almost entirely in San Francisco, California. Installment and other consumer loans include mostly loans for floating homes and mobile homes along with a small number of installment loans.

We use a risk rating system to evaluate asset quality, and to identify and monitor credit risk in individual loans, and ultimately in the portfolio. Definitions of loans that are risk graded “Special Mention” or worse are consistent with those used by the Federal Deposit Insurance Corporation ("FDIC").  Our internally assigned grades are as follows:

Pass and Watch: Loans to borrowers of acceptable or better credit quality. Borrowers in this category demonstrate fundamentally sound financial positions, repayment capacity, credit history and management expertise.  Loans in this category must have an identifiable and stable source of repayment and meet the Bank’s policy regarding debt service coverage ratios.  These borrowers are capable of sustaining normal economic, market or operational setbacks without significant financial consequences.  Negative external industry factors are generally not present.  The loan may be secured, unsecured or supported by non-real estate collateral for which the value is more difficult to determine and/or marketability is more uncertain. This category also includes “Watch” loans, where the primary source of repayment has been delayed. “Watch” is intended to be a transitional grade, with either an upgrade or downgrade within a reasonable period.

Special Mention: Potential weaknesses that deserve close attention. If left uncorrected, those potential weaknesses may result in deterioration of the payment prospects for the asset. Special Mention assets do not present sufficient risk to warrant adverse classification.

Substandard: Inadequately protected by either the current sound worth and paying capacity of the obligor or the collateral pledged, if any. A Substandard asset has a well-defined weakness or weaknesses that jeopardize(s) the liquidation of the debt. Substandard assets are characterized by the distinct possibility that we will sustain some loss if such weaknesses or deficiencies are not corrected. Well-defined weaknesses include adverse trends or developments of the borrower’s financial condition, managerial weaknesses and/or significant collateral deficiencies.

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Doubtful: Critical weaknesses that make collection or liquidation in full improbable. There may be specific pending events that work to strengthen the asset; however, the amount or timing of the loss may not be determinable. Pending events generally occur within one year of the asset being classified as Doubtful. Examples include: merger, acquisition, or liquidation; capital injection; guarantee; perfecting liens on additional collateral; and refinancing. Such loans are placed on non-accrual status and usually are collateral-dependent.

We regularly review our credits for accuracy of risk grades whenever new information is received. Borrowers are required to submit financial information at regular intervals. Generally, commercial borrowers with lines of credit are required to submit financial information with reporting intervals ranging from monthly to annually depending on credit size, risk and complexity. Investor commercial real estate borrowers are generally required to submit rent rolls or property income statements annually. Construction loans are monitored monthly, and reviewed on an ongoing basis. Home equity and other consumer loans are reviewed based on delinquency. Loans graded “Watch” or worse, regardless of loan type, are reviewed no less than quarterly.

The following table represents an analysis of the carrying amount in loans, net of deferred fees or costs and purchase premiums or discounts, by internally assigned risk grades, including PCI loans, at December 31, 2016 and 2015.

Credit Risk Profile by Internally Assigned Risk Grade
(in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential		Installment and other consumer		Purchased credit-impaired		Total
December 31, 2016
Pass	$	201,987	$	234,849	$	720,417	$	71,564	$	115,680	$	78,549	$	25,083	$	2,920	$	1,451,049
Special Mention	9,197		4,799		607		—		1,334		—		—		—		15,937
Substandard	7,391		6,993		1,498		3,245		91		—		412		—		19,630
Total loans	$	218,575	$	246,641	$	722,522	$	74,809	$	117,105	$	78,549	$	25,495	$	2,920	$	1,486,616
December 31, 2015
Pass	$	192,560	$	219,060	$	710,042	$	62,255	$	109,959	$	73,154	$	22,307	$	3,260	$	1,392,597
Special Mention	22,457		12,371		372		—		1,100		—		—		—		36,300
Substandard	4,260		9,167		3,739		3,239		1,173		—		332		421		22,331
Total loans	$	219,277	$	240,598	$	714,153	$	65,494	$	112,232	$	73,154	$	22,639	$	3,681	$	1,451,228

Troubled Debt Restructuring

Our loan portfolio includes certain loans that have been modified in a troubled debt restructuring (“TDR”), where economic concessions have been granted to borrowers experiencing financial difficulties. These concessions typically result from our loss mitigation activities and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance or other actions. TDRs on non-accrual status at the time of restructure may be returned to accruing status after Management considers the borrower’s sustained repayment performance for a reasonable period, generally six months, and obtains reasonable assurance of repayment and performance.

A loan may no longer be reported as a TDR if all of the following conditions are met:

• The loan is subsequently refinanced or restructured at current market interest rates and the new terms are consistent with the treatment of creditworthy borrowers under regular underwriting standards;

• The borrower is no longer considered to be in financial difficulty;

• Performance on the loan is reasonably assured, and;

• Existing loan did not have any forgiveness of principal or interest.

The removal of TDR status must be approved by the same Management level that approved the upgrading of the loan classification.

There we no loans removed from TDR designation during 2016. During 2015, five loans with a recorded investment totaling $1.6 million were removed from TDR designation, after meeting all of the conditions noted above.

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The table below summarizes the carrying amount of TDR loans by loan class as of December 31, 2016 and December 31, 2015. The summary includes both TDRs that are on non-accrual status and those that continue to accrue interest.

(in thousands)	As of
Recorded investment in Troubled Debt Restructurings 1	December 31, 2016		December 31, 2015
Commercial and industrial	$	2,207	$	4,698
Commercial real estate, owner-occupied	6,993		6,993
Commercial real estate, investor	2,256		514
Construction 2	3,245		3,238
Home equity	625		460
Other residential	1,965		2,010
Installment and other consumer	877		1,168
Total	$	18,168	$	19,081

¹ There were no TDR loans on non-accrual status at December 31, 2016 and $72 thousand in TDR loans on non-accrual status as of December 31, 2015. Includes no acquired loans as of December 31, 2016 and $137 thousand in acquired loans at December 31, 2015.

² In 2015, one TDR loan was transferred to loans held-for-sale at fair value totaling $1.5 million, net of an $839 thousand charge-off to the allowance for loan losses. The loan was subsequently sold in 2015 for no additional gain or loss.

The table below presents the following information for loans modified in a TDR during the presented periods: number of contracts modified, the recorded investment in the loans prior to modification, and the recorded investment in the loans after being restructured. The table below excludes fully charged-off TDR loans and loans modified in a TDR and subsequently paid-off during the years presented.

(dollars in thousands)	Number of Contracts Modified	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment at Period End
TDRs modified during 2016:
Commercial real estate, investor	2	$	1,830	$	1,826	$	1,752
Home equity 1	1	$	87	$	222	$	245
Installment and other consumer	1	$	68	$	67	$	66
Total	4	$	1,985	$	2,115	$	2,063
1 The home equity line of credit modified in 2016 included debt consolidation, which increased the post-modification balance.
TDRs modified during 2015:
Commercial and industrial	7	$	3,271	$	3,251	$	2,811
TDRs modified during 2014:
Commercial and industrial	6	$	1,039	$	1,258	$	1,251
Commercial real estate, owner occupied	1	4,226		4,216		4,175
Commercial real estate, investor	2	224		224		220
Construction	2	964		1,312		1,309
Installment and other consumer	6	281		278		268
Total	17	$	6,734	$	7,288	$	7,223

Modifications during 2016, 2015 and 2014 primarily involved maturity or payment extensions and interest rate concessions or some combination thereof. During 2016, 2015 and 2014, there were no defaults on loans that had been modified in a TDR within the prior twelve-month period. We report defaulted TDRs based on a payment default definition of more than ninety days past due.

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Impaired Loans

The table below summarizes information by class on impaired loans and their related allowances. Total impaired loans include non-accrual loans, accruing TDR loans and accreting PCI loans that have experienced post-acquisition declines in cash flows expected to be collected.

(in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential		Installment and other consumer		Total
December 31, 2016
Recorded investment in impaired loans:
With no specific allowance recorded	$	315	$	—	$	—	$	2,692	$	91	$	1,008	$	103	$	4,209
With a specific allowance recorded	1,892		6,993		2,256		553		624		957		829		14,104
Total recorded investment in impaired loans	$	2,207	$	6,993	$	2,256	$	3,245	$	715	$	1,965	$	932	$	18,313
Unpaid principal balance of impaired loans	$	2,177	$	6,993	$	2,252	$	3,238	$	713	$	1,965	$	932	$	18,270
Specific allowance	$	285	$	163	$	375	$	8	$	7	$	55	$	98	$	991
Average recorded investment in impaired loans during 2016	$	3,514	$	7,069	$	2,950	$	3,242	$	945	$	1,988	$	1,127	$	20,835
Interest income recognized on impaired loans during 2016 1	$	175	$	199	$	1,514	$	137	$	60	$	90	$	48	$	2,223
December 31, 2015
Recorded investment in impaired loans:
With no specific allowance recorded	$	2,198	$	4,111	$	2,416	$	2,687	$	171	$	1,214	$	131	$	12,928
With a specific allowance recorded	2,522		2,882		—		551		388		797		1,120		8,260
Total recorded investment in impaired loans	$	4,720	$	6,993	$	2,416	$	3,238	$	559	$	2,011	$	1,251	$	21,188
Unpaid principal balance of impaired loans	$	4,763	$	6,993	$	4,408	$	3,424	$	559	$	2,011	$	1,251	$	23,409
Specific allowance	$	912	$	70	$	—	$	1	$	3	$	67	$	116	$	1,169
Average recorded investment in impaired loans during 2015	$	4,237	$	7,886	$	2,833	$	4,164	$	602	$	2,028	$	1,523	$	23,273
Interest income recognized on impaired loans during 2015 1	$	238	$	295	$	33	$	86	$	18	$	92	$	64	$	826
Average recorded investment in impaired loans during 2014	$	5,354	$	6,604	$	3,138	$	6,471	$	741	$	1,744	$	1,857	$	25,909
Interest income recognized on impaired loans during 2014 1	$	378	$	288	$	28	$	85	$	19	$	74	$	76	$	948
1 Interest income recognized on a cash basis totaled $1.4 million in 2016 and was primarily related to the interest recovery upon the pay-off of a partially charged off non-accrual commercial real estate loan during the third quarter. No interest interest income on impaired loans was recognized on a cash basis in 2015 and 2014.

Management monitors delinquent loans continuously and identifies problem loans, generally loans graded substandard or worse, loans on non-accrual status and loans modified in a TDR, to be evaluated individually for impairment testing. Generally, the recorded investment in impaired loans is net of any charge-offs from estimated losses related to specifically-identified impaired loans when they are deemed uncollectible. There were no charged-off portions of impaired loans outstanding at December 31, 2016. The charged-off portion of impaired loans outstanding at December 31, 2015 totaled approximately $2.1 million.  In addition, the recorded investment in impaired loans is net of purchase discounts or premiums on acquired loans and net deferred fees and cost. At December 31, 2016 and 2015, outstanding commitments to extend credit on impaired loans, including performing loans to borrowers whose terms have been modified in TDRs, totaled $1.6 million and $1.3 million, respectively.

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The following tables disclose activity in the ALLL and the recorded investment in loans by class, as well as the related ALLL disaggregated by impairment evaluation method.

Allowance for Loan Losses Rollforward for the Period
(in thousands)	Commercial and industrial			Commercial real estate, owner-occupied			Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated		Total
Year ended December 31, 2016
Beginning balance	$	3,023		$	2,249		$	6,178		$	724		$	910		$	394		$	425		$	1,096	$	14,999
Provision (reversal)	93			(476		)	(2,014		)	57			60			60			(75		)	445		(1,850		)
Charge-offs	(11		)	(20		)	—			—			—			—			(5		)	—		(36		)
Recoveries	143			—			2,156			—			3			—			27			—		2,329
Ending balance	$	3,248		$	1,753		$	6,320		$	781		$	973		$	454		$	372		$	1,541	$	15,442
Year ended December 31, 2015
Beginning balance	$	2,837		$	1,924		$	6,672		$	839		$	859		$	433		$	566		$	969	$	15,099
Provision (reversal)	(45		)	325			(517		)	724			48			(39		)	(123		)	127		500
Charge-offs	(5		)	—			—			(839		)	—			—			(20		)	—		(864		)
Recoveries	236			—			23			—			3			—			2			—		264
Ending balance	$	3,023		$	2,249		$	6,178		$	724		$	910		$	394		$	425		$	1,096	$	14,999
Year ended December 31, 2014
Beginning balance	$	3,056		$	2,012		$	6,196		$	633		$	875		$	317		$	629		$	506	$	14,224
Provision (reversal)	(321		)	(93		)	431			314			(19		)	116			(141		)	463		750
Charge-offs	(66		)	—			—			(204		)	—			—			(7		)	—		(277		)
Recoveries	168			5			45			96			3			—			85			—		402
Ending balance	$	2,837		$	1,924		$	6,672		$	839		$	859		$	433		$	566		$	969	$	15,099

Allowance for Loan Losses and Recorded Investment In Loans
(dollars in thousands)	Commercial and industrial			Commercial real estate, owner-occupied			Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated		Total
December 31, 2016
Ending ALLL related to loans collectively evaluated for impairment	$	2,963		$	1,590		$	5,945		$	773		$	966		$	399		$	274		$	1,541	$	14,451
Ending ALLL related to loans  individually evaluated for impairment	285			163			375			8			7			55			98			—		991
Ending ALLL related to purchased  credit-impaired loans	—			—			—			—			—			—			—			—		—
Ending balance	$	3,248		$	1,753		$	6,320		$	781		$	973		$	454		$	372		$	1,541	$	15,442
Recorded Investment:
Collectively evaluated for impairment	$	216,368		$	239,648		$	720,266		$	71,564		$	116,390		$	76,584		$	24,563		$	—	$	1,465,383
Individually evaluated for impairment	2,207			6,993			2,256			3,245			715			1,965			932			—		18,313
Purchased credit-impaired	40			1,072			1,706			—			102			—			—			—		2,920
Total	$	218,615		$	247,713		$	724,228		$	74,809		$	117,207		$	78,549		$	25,495		$	—	$	1,486,616
Ratio of allowance for loan losses to total loans	1.49		%	0.71		%	0.87		%	1.04		%	0.83		%	0.58		%	1.46		%	NM		1.04		%
Allowance for loan losses to non-accrual loans	NM			NM			NM			NM			1,071		%	NM			683		%	NM		10,650		%

NM - Not Meaningful

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Allowance for Loan Losses and Recorded Investment In Loans
(dollars in thousands)	Commercial and industrial			Commercial real estate, owner-occupied			Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated		Total
December 31, 2015
Ending ALLL related to loans collectively evaluated for impairment	$	2,111		$	2,179		$	6,178		$	723		$	907		$	327		$	309		$	1,096	$	13,830
Ending ALLL related to loans  individually evaluated for impairment	904			70			—			—			3			67			116			—		1,160
Ending ALLL related to purchased  credit-impaired loans	8			—			—			1			—			—			—			—		9
Ending balance	$	3,023		$	2,249		$	6,178		$	724		$	910		$	394		$	425		$	1,096	$	14,999
Loans outstanding:
Collectively evaluated for impairment	$	214,695		$	233,605		$	711,737		$	62,256		$	111,673		$	71,143		$	21,388		$	—	$	1,426,497
Individually evaluated for impairment1	4,582			6,993			2,416			3,238			559			2,011			1,251			—		21,050
Purchased credit-impaired	175			1,711			1,726			1			68			—			—			—		3,681
Total	$	219,452		$	242,309		$	715,879		$	65,495		$	112,300		$	73,154		$	22,639		$	—	$	1,451,228
Ratio of allowance for loan losses to total loans	1.38		%	0.93		%	0.86		%	1.11		%	0.81		%	0.54		%	1.88		%	NM		1.03		%
Allowance for loan losses to non-accrual loans	14,395		%	NM			325		%	72,400		%	532		%	NM			512		%	NM		688		%

¹ Totals exclude $138 thousand in PCI loans that have experienced credit deterioration post-acquisition, which are included in the "purchased credit-impaired" amount in the next line below.

NM - Not Meaningful

Purchased Credit-Impaired Loans

Acquired loans are considered credit-impaired if there is evidence of significant deterioration of credit quality since origination and it is probable, at the acquisition date, that we will be unable to collect all contractually required payments receivable. Management has determined certain loans purchased in our two bank acquisitions to be PCI loans based on credit indicators such as nonaccrual status, past due status, loan risk grade, loan-to-value ratio, etc. Revolving credit agreements (e.g., home equity lines of credit and revolving commercial loans) are not considered PCI loans as cash flows cannot be reasonably estimated.

The following table reflects the unpaid principal balance and related carrying value of PCI loans:

PCI Loans	December 31, 2016				December 31, 2015
(in thousands)	Unpaid Principal Balance		Carrying Value		Unpaid Principal Balance		Carrying Value
Commercial and industrial	$	45	$	40	$	237	$	175
Commercial real estate, owner occupied	1,344		1,072		2,573		1,711
Commercial real estate, investor	1,713		1,706		1,756		1,726
Construction	—		—		187		1
Home equity	248		102		224		68
Total purchased credit-impaired loans	$	3,350	$	2,920	$	4,977	$	3,681

There were no fluctuations in expected future cash flows on the remaining PCI loans that resulted in changes to the allowance for loan losses during 2016. The specific allowance for PCI loan losses increased by $4 thousandand $3 thousand during2015 and 2014, respectively. Probable and significant increases in expected cash flows would first reverse any related allowance for loan losses and any remaining increases would be recognized prospectively as interest income over the estimated remaining lives of the loans. The specific allowance for PCI loan losses decreased by $6 thousand during 2016 as a result of loan pay-offs. The allowance for loan losses for PCI loans, due to increases in the present value of cash flows expected to be collected, decreased by $2 thousand and $238 thousand during 2015 and 2014, respectively.

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The activities in the accretable yield, or income expected to be earned over the remaining lives of the PCI loans were as follows:

Accretable Yield	Years ended
(in thousands)	December 31, 2016			December 31, 2015			December 31, 2014
Balance at beginning of period	$	2,618		$	4,027		$	3,649
Additions	—			—			—
Removals 1	(778		)	(914		)	(273		)
Accretion	(364		)	(495		)	(613		)
Reclassifications from nonaccretable difference 2	—			—			1,264
Balance at end of period	$	1,476		$	2,618		$	4,027
1 Represents the accretable difference that is relieved when a loan exits the PCI population due to payoff, full charge-off, or transfer to repossessed assets, etc.
2 Primarily relates to changes in expected credit performance and changes in expected timing of cash flows.

Pledged Loans

Our FHLB line of credit is secured under terms of a blanket collateral agreement by a pledge of certain qualifying loans with an unpaid principal balance of $869.2 million and $833.8 million at December 31, 2016 and 2015, respectively. In addition, we pledge a certain residential loan portfolio, which totaled $54.6 million and $45.2 million at December 31, 2016 and 2015, respectively, to secure our borrowing capacity with the Federal Reserve Bank (“FRB”). Also see Note 7, Borrowings, below.

Related Party Loans

The Bank has, and expects to have in the future, banking transactions in the ordinary course of its business with directors, officers, principal shareholders and their associates. These transactions, including loans, are granted on substantially the same terms, including interest rates and collateral on loans, as those prevailing at the same time for comparable transactions with persons not related to us. Likewise, these transactions do not involve more than the normal risk of collectability or present other unfavorable features.

An analysis of net loans to related parties for each of the three years ended December 31, 2016, 2015 and 2014 is as follows:

(in thousands)	2016			2015			2014
Balance at beginning of year	$	2,562		$	3,329		$	3,749
Additions	—			—			—
Advances	—			165			—
Repayments	(574		)	(390		)	(420		)
Reclassified as unrelated-party loan due to a change in borrower status	—			(542		)	—
Balance at end of year	$	1,988		$	2,562		$	3,329

Undisbursed commitments to related parties totaled $1.1 million and $1.0 million as of December 31, 2016 and 2015, respectively.

Note 4:  Bank Premises and Equipment

A summary of Bank premises and equipment at December 31 follows:

(in thousands)	2016			2015
Leasehold improvements	$	13,883		$	13,615
Furniture and equipment	10,627			9,887
Subtotal	24,510			23,502
Accumulated depreciation and amortization	(15,990		)	(14,197		)
Bank premises and equipment, net	$	8,520		$	9,305

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The amount of depreciation and amortization totaled $1.8 million, $2.0 million, and $1.6 million for the years ended December 31, 2016, 2015 and 2014, respectively.

Note 5:  Bank Owned Life Insurance

We own life insurance policies on the lives of certain officers designated by the Board of Directors to finance employee benefit programs, and death benefits provided under the specific terms of these programs are estimated to be $71.0 million at December 31, 2016. The benefits to employees' beneficiaries are limited to the employee's active service period. The investment in bank owned life insurance policies are reported in interest receivable and other assets at their cash surrender value of $32.4 million and $29.5 million at December 31, 2016 and 2015, respectively. The cash surrender value includes both the original premiums paid for the life insurance policies and the accumulated accretion of policy income since inception of the policies. Income of $844 thousand, $814 thousand and $841 thousand was recognized on the life insurance policies in 2016, 2015 and 2014, respectively. We regularly monitor the credit ratings of our insurance carriers to ensure that they are in compliance with our policy.

Note 6:  Deposits

A stratification of time deposits at December 31, 2016 and 2015 is presented in the following table:

(in thousands)	December 31, 2016		December 31, 2015
Time deposits of less than $100 thousand	$	36,346	$	39,534
Time deposits of $100 thousand to $250 thousand	66,092		67,352
Time deposits of more than $250 thousand	49,025		54,571
Total time deposits	$	151,463	$	161,457

Interest on time deposits was $743 thousand, $853 thousand and $917 thousand in 2016, 2015 and 2014, respectively.

Scheduled maturities of time deposits at December 31, 2016 are presented as follows:

(in thousands)	2017		2018		2019		2020		2021		Thereafter		Total
Scheduled maturities of time deposits	$	104,616	$	12,325	$	7,891	$	7,246	$	19,385	$	—	$	151,463

As of December 31, 2016, $36.4 million in securities held-to-maturity and $71.9 million securities available-for-sale were pledged as collateral for our local agency deposits.

Our deposit portfolio includes deposits offered through the Promontory Interfinancial Network that are comprised of Certificate of Deposit Account Registry Service^® ("CDARS") balances included in time deposits and Insured Cash Sweep^® ("ICS") balances included in money market deposits. In addition, in 2016, we began offering deposits through Reich & Tang Deposit Networks, LLC, comprised of Demand Deposit Marketplace^SM ("DDM") balances, mostly in money market deposits. Through these two networks we are able to offer our customers access to FDIC-insured deposit products in aggregate amounts exceeding current insurance limits. When we place funds through CDARS,ICS and DDM, on behalf of a customer, we typically receive matching deposits through the network's reciprocal deposit program. We consider the reciprocal deposits to be in-market deposits as distinguished from traditional out-of-market brokered deposits. We had $15.1 million and $14.3 million in CDARS and $29.0 million and $12.2 million in ICS balances in the reciprocal deposit program at December 31, 2016 and 2015, respectively. In addition, we had $36.4 million in DDM balances in the reciprocal deposit program at December 31, 2016. We also have the ability to place deposits through the networks for which we receive no matching deposits ("one-way" deposits). One-way CDARS deposits totaled $361 thousand and $355 thousand at December 31, 2016 and 2015, respectively.

The aggregate amount of deposit overdrafts that have been reclassified as loan balances was $229 thousand and $84 thousand at December 31, 2016 and 2015, respectively. Collectability of these overdrafts is subject to the same credit review process as other loans.

The Bank accepts deposits from shareholders, directors and employees in the normal course of business, and the terms are comparable to those with non-affiliated parties. The total deposits from directors and their businesses, and executive officers were $7.3 million and $8.3 million at December 31, 2016 and 2015, respectively.

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Note 7: Borrowings

Federal Funds Purchased – The Bank had unsecured lines of credit totaling $92.0 million with correspondent banks for overnight borrowings at both December 31, 2016 and 2015.  In general, interest rates on these lines approximate the federal funds target rate. We had no overnight borrowings under these credit facilities at December 31, 2016 and December 31, 2015.

Federal Home Loan Bank Borrowings – As of December 31, 2016 and 2015, the Bank had lines of credit with the FHLB totaling $513.7 million and $470.6 million, respectively, based on eligible collateral of certain loans. At December 31, 2016 there were no FHLB overnight borrowings compared to $52.0 million in FHLB overnight borrowings at a rate of 0.27% at December 31, 2015. On February 5, 2008, the Bank entered into a ten-year borrowing agreement under the same FHLB line of credit for $15.0 million at a fixed rate of 2.07%. On June 15, 2016, the Bank repaid the $15.0 million early and incurred a prepayment fee of $312 thousand recorded in interest expense. At December 31, 2016 and 2015, $513.7 million and $403.4 million, respectively, were remaining as available for borrowing from the FHLB, net of outstanding borrowings and an unused standby letter of credit totaling $241 thousand at December 31, 2015.

Federal Reserve Line of Credit – The Bank has a line of credit with the Federal Reserve Bank of San Francisco ("FRBSF") secured by certain residential loans.  At December 31, 2016 and 2015, the Bank had borrowing capacity under this line totaling $43.1 million and $37.8 million, respectively, and had no outstanding borrowings with the FRBSF.

As part of an acquisition, Bancorp assumed two subordinated debentures due to NorCal Community Bancorp Trusts I and II (the "Trusts"), established for the sole purpose of issuing trust preferred securities on September 22, 2003 and December 29, 2005, respectively. The subordinated debentures were recorded at fair values totaling $4.95 million at acquisition date with contractual values totaling $8.2 million. The difference between the contractual balance and the fair value at acquisition date is accreted into interest expense over the lives of the debentures. Accretion on the subordinated debentures totaled $191 thousand, $210 thousand and $216 thousand in 2016, 2015 and 2014, respectively. Bancorp has the option to defer payment of the interest on the subordinated debentures for a period of up to five years, as long as there is no default on the subordinated debentures. In the event of interest deferral, dividends to Bancorp common stockholders are prohibited. The trust preferred securities were sold and issued in private transactions pursuant to an exemption from registration under the Securities Act of 1933, as amended. Bancorp has guaranteed, on a subordinated basis, distributions and other payments due on trust preferred securities totaling $8.0 million issued by the Trusts which have identical maturity, repricing and payment terms as the subordinated debentures.

The following is a summary of the contractual terms of the subordinated debentures due to the Trusts as of December 31, 2016:

(in thousands)
Subordinated debentures due to NorCal Community Bancorp Trust I on October 7, 2033 with interest payable quarterly, based on 3-month LIBOR plus 3.05%, repricing quarterly (3.93% as of December 31, 2016), redeemable, in whole or in part, on any interest payment date	$	4,124
Subordinated debentures due to NorCal Community Bancorp Trust II on March 15, 2036 with interest payable quarterly, based on 3-month LIBOR plus 1.40%, repricing quarterly (2.36% as of December 31, 2016), redeemable, in whole or in part, on any interest payment date	4,124
Total	$	8,248

Borrowings at December 31, 2016 and 2015 are summarized as follows:

	2016							2015
(dollars in thousands)	Carrying Value		Average Balance		Average Rate			Carrying Value		Average Balance		Average Rate
FHLB overnight borrowings	$	—	$	5,383	0.42	%		$	52,000	$	784	0.38	%
FHLB fixed-rate advances	$	—	$	6,803	6.59	%	1	$	15,000	$	15,000	2.07	%
Subordinated debentures	$	5,586	$	5,493	7.80	%		$	5,395	$	5,288	7.94	%

¹ Amount includes the impact of the $312 thousand prepayment fee in 2016 discussed above.

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Note 8:  Stockholders' Equity and Stock Plans

Warrant

Under the United States Department of the Treasury Capital Purchase Program (the “TCPP”), Bancorp issued to the U.S. Treasury a warrant to purchase 154,242 shares of common stock at a per share exercise price of $27.23. The warrant was immediately exercisable and was subsequently auctioned to two institutional investors in November 2011. The warrant, as adjusted, represented the right to purchase 157,711 shares of common stock at $26.63 per share when it was exercised in September 2015 and the cashless exercise resulted in the issuance of 70,591 shares of common stock.

Share-Based Awards

On May 11, 2010, our shareholders approved the 2010 Director Stock Plan to pay director fees in shares of Bancorp common stock up to 150,000 shares. In 2016, 2015 and 2014, our directors were awarded a total of 4,607, 5,295 and 5,306 common shares, respectively, from the 2010 Director Stock Plan in addition to their cash compensation. As of December 31, 2016, 113,842 shares were available for future grants under this plan.

On May 8, 2007, the 2007 Equity Plan was approved by the Bank shareholders. The 2007 Equity Plan was subsequently adopted by Bancorp as part of the holding company formation. All new share-based awards from the approval date forward are granted through the 2007 Equity Plan.

The 2007 Equity Plan provides financial incentives for selected employees, advisors and non-employee directors. Terms of the plan provide for the issuance of up to 500,000 shares of common stock for these employees, advisors and non-employee directors. As of December 31, 2016, there were 155,750 shares available for future grants under the 2007 Equity Plan. The Compensation Committee of the Board of Directors has the discretion to determine which employees, advisors and non-employee directors will receive an award, the timing of awards, the vesting schedule for each award, the type of award to be granted, the number of shares of Bancorp stock to be subject to each option and restricted stock award, and any other terms and conditions. Restricted or unrestricted whole-share awards are limited to 250,000 of the total shares available under the 2007 Equity Plan.

Effective July 1, 2007, we adopted an Employee Stock Purchase Plan whereby our employees may purchase Bancorp common shares through payroll deductions of between one percent and fifteen percent of pay in each pay period. Shares are purchased quarterly at a five percent discount from the closing market price on the last day of the quarter. The plan calls for 200,000 common shares to be set aside for employee purchases, and there were 192,965 shares available for future grants under the plan as of December 31, 2016.

The inactive 1999 Stock Option Plan covered certain full-time employees and directors who had substantial responsibility for the successful operation of the Bank. Stock options granted pursuant to the 1999 Stock Option Plan were subsequently adopted by Bancorp as part of the holding company formation. Stock options under that plan now relate to shares of common stock of Bancorp. Upon approval of the 2007 Equity Plan, no new awards have been granted under the 1999 Stock Option Plan.

Options are issued at an exercise price equal to the fair value of the stock at the date of grant. Options and restricted stock awarded to officers and employees during 2006 through 2014 vest 20% on each anniversary of the grant date for five years and expire ten years from the grant date. Options granted to non-employee directors prior to 2016 vest 20% immediately and 20% on each anniversary of the grant date for four years and expire seven years from the grant date. All options granted after 2014 for employees and in 2016 for non-employee directors generally vest by one-third on each anniversary of the grant for three years and expire ten years from the grant date.

Beginning in 2015, performance-based stock awards were issued to a selected group of employees. Stock award vesting is contingent upon the achievement of pre-established long-term performance goals set by the Compensation Committee of the Board of Directors. Performance is measured over a three-year period and cliff vested. These performance-based stock awards were granted at a maximum opportunity level, and based on the achievement of the pre-established goals, the actual payouts can range from 0% to 200% of the target award. For performance-based stock awards, an estimate is made of the number of shares expected to vest based on the probability that the

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performance criteria will be achieved to determine the amount of compensation expense to be recognized. The estimate is re-evaluated quarterly and total compensation expense is adjusted for any change in the current period.

A summary of activity for stock options for the years ended December 31, 2016, 2015 and 2014 is presented below. The intrinsic value of options outstanding and exercisable is calculated as the number of in-the-money options times the difference between the market price of our stock as of each year end presented and the exercise prices of the in-the-money options.

	Number of Shares		Weighted Average Exercise Price		Aggregate Intrinsic Value (in thousands)		Weighted Average Grant-Date Fair Value		Weighted Average Remaining Contractual Term (in years)
Options outstanding at December 31, 2013	220,456		$	32.74	$	2,349			4.05
Granted	26,421		44.83				$	12.04
Cancelled, expired or forfeited	(2,790	)	39.01
Exercised	(49,415	)	29.39		771
Options outstanding at December 31, 2014	194,672		35.14		3,398				4.48
Exercisable (vested) at December 31, 2014	133,153		32.31		2,701				2.88
Options outstanding at December 31, 2014	194,672		35.14		3,398				4.48
Granted	28,320		50.70				12.21
Cancelled, expired or forfeited	(652	)	48.38
Exercised	(37,071	)	30.72		755
Options outstanding at December 31, 2015	185,269		38.35		2,788				5.00
Exercisable (vested) at December 31, 2015	114,581		34.12		2,209				3.21
Options outstanding at December 31, 2015	185,269		38.35		2,788				5.00
Granted	32,637		49.37				10.11
Exercised	(36,117	)	33.98		661
Options outstanding at December 31, 2016	181,789		41.20		5,190				5.77
Exercisable (vested) at December 31, 2016	103,211		36.65		3,416				4.18

The following table shows the number, weighted average exercise price, intrinsic value, and weighted average remaining contractual life of options outstanding, vested and expected to vest as of December 31, 2016.

Number of options	177,122
Weighted average exercise price	$	41.03
Aggregate intrinsic value (in thousands)	$	5,086
Weighted average remaining contractual term (in years)	5.71

The following table summarizes non-vested restricted stock awards and changes during the years ended December 31, 2016, 2015 and 2014.

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	Restricted Stock Awards
	Number of Shares		Weighted Average Grant-Date Fair Value
Non-vested awards at December 31, 2013	22,521		$	37.59
Granted	8,523		45.36
Vested	(6,554	)	34.65
Forfeited	(2,067	)	39.32
Non-vested awards at December 31, 2014	22,423		41.25
Granted	15,970		50.75
Vested	(6,555	)	40.00
Forfeited	(450	)	48.45
Non-vested awards at December 31, 2015	31,388		46.24
Granted	16,910		49.65
Vested	(8,599	)	44.14
Non-vested awards at December 31, 2016	39,699		48.15

As of December 31, 2016, there was $1.6 million of total unrecognized compensation expense related to non-vested stock options and restricted stock awards. This cost is expected to be recognized over a weighted-average period of approximately 1.8 years. The total grant-date fair value of stock options vested during the years ended December 31, 2016, 2015 and 2014 was $282 thousand, $202 thousand and $187 thousand, respectively. The total grant-date fair value of restricted stock awards vested during 2016, 2015 and 2014 was $380 thousand, $262 thousand and $227 thousand, respectively.

A summary of the options outstanding and exercisable by price range as of December 31, 2016 is presented in the following table:

	Stock Options Outstanding as of December 31, 2016				Stock Options Exercisable as of December 31, 2016
Range of Exercise Prices	Stock Options Outstanding	Remaining Contractual Life (in years)	Weighted Average Exercise Price		Stock Options Exercisable	Weighted Average Exercise Price
$20.00 - $25.00	13,138	2.3	$	22.25	13,138	$	22.25
$25.01 - $30.00	10,180	1.3	28.75		10,180	28.75
$30.01 - $35.00	9,195	3.3	33.10		9,195	33.10
$35.01 - $40.00	46,588	4.1	37.70		39,038	37.48
$40.01 - $45.00	29,551	5.9	41.95		17,130	41.91
$45.01 - $50.00	45,187	8.7	48.40		5,020	45.88
$50.01 - $55.00	27,950	7.9	50.70		9,510	50.69
	181,789				103,211

The fair value of stock options on the grant date is recorded as a stock-based compensation expense in the consolidated statements of comprehensive income over the requisite service period with a corresponding increase in common stock. Stock-based compensation also includes compensation expense related to the issuance of restricted stock awards pursuant to the 2007 Equity Plan. The grant-date fair value of the restricted stock awards, which equals intrinsic value on that date, is being recorded as compensation expense over the requisite service period. Total compensation cost for these share-based payment arrangements was $994 thousand, $636 thousand and $446 thousand during 2016, 2015 and 2014, respectively, and the total recognized tax benefits related thereto were $318 thousand, $194 thousand and $128 thousand, respectively. In addition, we record excess tax benefits, if any, on the exercise of non-qualified stock options, the disqualifying disposition of incentive stock options and vesting of restricted stock awards as an addition to common stock with a corresponding decrease in current taxes payable. The tax benefit realized from disqualifying dispositions of incentive stock options recognized in the consolidated statements of comprehensive income during 2016, 2015 and 2014 was $70 thousand, $49 thousand and $76 thousand, respectively.

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We determine the fair value of stock options at the grant date using the Black-Scholes pricing model that takes into account the stock price at the grant date, the exercise price, and the following assumptions (weighted-average shown).

	Years ended December 31,
	2016		2015		2014
Risk-free interest rate	1.37	%	1.67	%	2.04	%
Expected dividend yield on common stock	2.02	%	1.75	%	1.70	%
Expected life in years	6.0		6.0		6.0
Expected price volatility	25.56	%	28.06	%	30.32	%

Dividends

Presented below is a summary of cash dividends paid to common shareholders, recorded as a reduction of retained earnings. On January 20, 2017, the Board of Directors declared a cash dividend of $0.27 per share, payable on February 10, 2017 to shareholders of record at the close of business on February 3, 2017.

	Years ended December 31,
(in thousands except per share data)	2016		2015		2014
Cash dividends to common stockholders	$	6,223	$	5,390	$	4,733
Cash dividends per common share	$	1.02	$	0.90	$	0.80

The holders of the unvested restricted common stock awards are entitled to dividends on the same per-share ratio as the holders of common stock. Dividends paid on the portion of share-based awards not expected to vest are included in stock-based compensation expense. Tax benefits on dividends paid on the portion of share-based awards expected to vest are recorded as an increase to common stock with a corresponding decrease in current taxes payable.

Under the California Corporations Code, payment of dividends by Bancorp to its shareholders is restricted to the amount of retained earnings immediately prior to the distribution or the amount of assets that exceeds the total liabilities immediately after the distribution. As of December 31, 2016, Bancorp's retained earnings and the amount of assets that exceeds the total liabilities were $146.5 million and $230.6 million, respectively.

Under the California Financial Code, payment of dividends by the Bank to Bancorp is restricted to the lesser of retained earnings or the amount of undistributed net profits of the Bank from the three most recent fiscal years. Under this restriction, approximately $50.8 million of the Bank's retained earnings balance was available for payment of dividends to Bancorp as of December 31, 2016. Bancorp held $3.5 million in cash at December 31, 2016. This cash, combined with the $50.8 million dividends available to be distributed from the Bank, is expected to be adequate to cover Bancorp's estimated operational needs and cash dividends to shareholders for 2017.

Preferred Stock and Shareholder Rights Plan

On July 2, 2007, Bancorp executed a shareholder rights agreement (“Rights Agreement”) designed to discourage takeovers that involve abusive tactics or do not provide fair value to shareholders. The Rights Agreement was amended on June 17, 2016 to reduce the percentage of share ownership defining an "acquiring person" and certain related terms from 15% to 10% of the outstanding common shares. As of December 31, 2016, Bancorp was authorized to issue five million shares of preferred stock with no par value under the Rights Agreement. In the event of a proposed merger, tender offer or other attempt to gain control of Bancorp that the Board of Directors does not approve, it might be possible for the Board of Directors to authorize the issuance of shares of common or preferred stock that would impede the completion of such a transaction. An effect of the possible issuance of common or preferred stock, therefore, may be to deter a future takeover attempt. The Board of Directors has no present plans or understandings for the issuance of any common or preferred stock in connection with the Rights Agreement.

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Note 9:  Fair Value of Assets and Liabilities

Fair Value Hierarchy and Fair Value Measurement

We group our assets and liabilities that are measured at fair value in three levels within the fair value hierarchy, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. These levels are:

Level 1: Valuations are based on unadjusted quoted prices in active markets for identical assets or liabilities.

Level 2: Valuations are based on quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-based valuations for which all significant assumptions are observable or can be corroborated by observable market data.

Level 3: Valuations are based on unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Values are determined using pricing models and discounted cash flow models and may include significant Management judgment and estimation.

Transfers between levels of the fair value hierarchy are recognized through our monthly and/or quarterly valuation process in the reporting period during which the event or circumstances that caused the transfer occurred.

The following table summarizes our assets and liabilities that were required to be recorded at fair value on a recurring basis.

(in thousands) Description of Financial Instruments	Carrying Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
December 31, 2016
Securities available for sale:
Mortgage-backed securities and collaterized mortgage obligations issued by U.S. government agencies	$	254,041	$	—	$	253,434	$	607
Debentures of government sponsored agencies	$	35,403	$	—	$	35,403	$	—
Privately-issued collateralized mortgage obligations	$	419	$	—	$	419	$	—
Obligations of state and political subdivisions	$	77,701	$	—	$	77,701	$	—
Corporate bonds	$	5,016	$	—	$	5,016	$	—
Derivative financial assets (interest rate contracts)	$	55	$	—	$	55	$	—
Derivative financial liabilities (interest rate contracts)	$	933	$	—	$	933	$	—
December 31, 2015
Securities available for sale:
Mortgage-backed securities and collaterized mortgage obligations issued by U.S. government agencies	$	190,093	$	—	$	188,381	$	1,712
Debentures of government sponsored agencies	$	160,892	$	—	$	160,892	$	—
Privately-issued collateralized mortgage obligations	$	4,150	$	—	$	4,150	$	—
Obligations of state and political subdivisions	$	57,673	$	—	$	57,673	$	—
Corporate bonds	$	4,979	$	—	$	4,979	$	—
Derivative financial assets (interest rate contracts)	$	3	$	—	$	3	$	—
Derivative financial liabilities (interest rate contracts)	$	1,658	$	—	$	1,658	$	—

Securities available-for-sale are recorded at fair value on a recurring basis. When available, quoted market prices (Level 1) are used to determine the fair value of securities available-for-sale. If quoted market prices are not available, we obtain pricing information from a reputable third-party service provider, who may utilize valuation techniques that use current market-based or independently sourced parameters, such as bid/ask prices, dealer-quoted prices, interest

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rates, benchmark yield curves, prepayment speeds, probability of default, loss severity and credit spreads (Level 2).   Level 2 securities include obligations of state and political subdivisions, U.S. agencies or government-sponsored agencies' debt securities, mortgage-backed securities, government agency-issued, privately-issued collateralized mortgage obligations and corporate bonds. As of December 31, 2016 and 2015, there were no securities that were considered Level 1 securities. As of December 31, 2016, we have one available-for-sale security that is considered a Level 3 security. The security is a U.S. government agency obligation collateralized by a small number of business equipment loans guaranteed by the Small Business Administration ("SBA") program. This security is not actively traded and is owned only by a few investors. The significant unobservable data that is reflected in the fair value measurement include dealer quotes, projected prepayment speeds/average life and credit information, among other things. The decrease in fair value during 2016 was due to the pay-off of one of the larger loans in the pool collateralizing the security. The unrealized gain or loss on this SBA-guaranteed security decreased by $15 thousand in the same period recorded as part of other comprehensive income.

Securities held-to-maturity may be written down to fair value (determined using the same techniques discussed above for securities available-for-sale) as a result of an other-than-temporary impairment, and we did not record any write-downs during 2016 or 2015.

On a recurring basis, derivative financial instruments are recorded at fair value, which is based on the income approach using observable Level 2 market inputs, reflecting market expectations of future interest rates as of the measurement date.  Standard valuation techniques are used to calculate the present value of the future expected cash flows assuming an orderly transaction.  Valuation adjustments may be made to reflect both our own credit risk and the counterparties’ credit risk in determining the fair value of the derivatives. Level 2 inputs for the valuations are limited to observable market prices for London Interbank Offered Rate (“LIBOR”) and Overnight Index Swap ("OIS") rates (for the very short term), quoted prices for LIBOR futures contracts, observable market prices for LIBOR and OIS swap rates, and one-month and three-month LIBOR basis spreads at commonly quoted intervals. Mid-market pricing of the inputs is used as a practical expedient in the fair value measurements. We project spot rates at reset days specified by each swap contract to determine future cash flows, then discount to present value using either LIBOR or OIS curves depending on whether the swap positions are fully collateralized as of the measurement date. When the value of any collateral placed with counterparties is less than the interest rate derivative liability, a credit valuation adjustment ("CVA") is applied to reflect the credit risk we pose to counterparties. We have used the spread between the Standard & Poor's BBB rated U.S. Bank Composite rate and LIBOR for the closest maturity term corresponding to the duration of the swaps to derive the CVA. A similar credit risk adjustment, correlated to the credit standing of the counterparty, is made when collateral posted by the counterparty does not fully cover their liability to the Bank. For further discussion on our methodology in valuing our derivative financial instruments, refer to Note 14, Derivative Financial Instruments and Hedging Activities.

Certain financial assets may be measured at fair value on a non-recurring basis. These assets are subject to fair value adjustments that result from the application of the lower of cost or fair value accounting or write-downs of individual assets, such as impaired loans and other real estate owned ("OREO").

The following table presents the carrying value of assets and liabilities measured at fair value on a non-recurring basis and that were held in the consolidated statements of condition at each respective period end, by level within the fair value hierarchy as of December 31, 2016 and 2015.

(in thousands) Description of Financial Instruments	Carrying Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs  (Level 3)
December 31, 2016
Other real estate	$	408	$	—	$	—	$	408
December 31, 2015
Other real estate	$	421	$	—	$	—	$	421

When a loan is identified as impaired, it is reported at the lower of cost or fair value, measured based on the loan's observable market price (Level 1) or the current net realizable value of the underlying collateral securing the loan, if the loan is collateral dependent (Level 3).  Net realizable value of the underlying collateral is the fair value of the

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collateral less estimated selling costs and any prior liens. Appraisals, recent comparable sales, offers and listing prices are factored in when valuing the collateral. We review and verify the qualifications and licenses of the certified general appraisers used for appraising commercial properties or certified residential appraisers for residential properties. Real estate appraisals may utilize a combination of approaches including replacement cost, sales comparison and the income approach. Comparable sales and income data are analyzed by the appraisers and adjusted to reflect differences between them and the subject property such as property characteristics, leasing status and physical condition. When appraisals are received, Management reviews the underlying assumptions and methodology utilized, as well as the overall resulting value in conjunction with independent data sources such as recent market data and industry-wide statistics. We generally use a 6% discount for selling costs which is applied to all properties, regardless of size. Appraised values may be adjusted to reflect changes in market conditions that have occurred subsequent to the appraisal date, or for revised estimates regarding the timing or cost of the property sale. These adjustments are based on qualitative judgments made by Management on a case-by-case basis and are generally unobservable valuation inputs as they are specific to the underlying collateral. There have been no significant changes in the valuation techniques during 2016.

OREO represents collateral acquired through foreclosure and is initially recorded at fair value as established by a current appraisal, adjusted for disposition costs. Subsequently, OREO is measured at lower of cost or fair value. OREO values are reviewed on an ongoing basis and any subsequent decline in fair value is recorded as a foreclosed asset expense in the current period. The value of OREO is determined based on independent appraisals, similar to the process used for impaired loans, discussed above, and is classified as Level 3. All OREO resulted from an acquisition. Decreases in the estimated fair value of OREO totaled $13 thousand and $40 thousand during 2016 and 2015, respectively.

Disclosures about Fair Value of Financial Instruments

The table below is a summary of fair value estimates for financial instruments as of December 31, 2016 and 2015, excluding financial instruments recorded at fair value on a recurring basis (summarized in the first table in this note). The carrying amounts in the following table are recorded in the consolidated statements of condition under the indicated captions. Further, we have not disclosed the fair value of financial instruments specifically excluded from disclosure requirements of the Financial Instruments Topic of the Codification (ASC 825-10-50-8), such as BOLI. Additionally, we hold shares of FHLB stock and Visa Inc. Class B common stock at cost. These shares are restricted from resale and their values were discussed in Note 2, Investment Securities, above.

	December 31, 2016					December 31, 2015
(in thousands)	Carrying Amounts		Fair Value		Fair Value Hierarchy	Carrying Amounts		Fair Value		Fair Value Hierarchy
Financial assets:
Cash and cash equivalents	$	48,804	$	48,804	Level 1	$	26,343	$	26,343	Level 1
Investment securities held-to-maturity	44,438		45,097		Level 2	69,637		71,054		Level 2
Loans, net	1,471,174		1,473,360		Level 3	1,436,229		1,470,380		Level 3
Interest receivable	6,319		6,319		Level 2	6,643		6,643		Level 2
Financial liabilities:
Deposits	1,772,700		1,773,102		Level 2	1,728,226		1,728,717		Level 2
Federal Home Loan Bank borrowing	—		—		Level 2	67,000		67,279		Level 2
Subordinated debentures	5,586		5,083		Level 3	5,395		5,132		Level 3
Interest payable	134		134		Level 2	187		187		Level 2

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Following is a description of methods and assumptions used to estimate the fair value of each class of financial instrument not recorded at fair value but required for disclosure purposes:

Cash and Cash Equivalents - The carrying amounts of cash and cash equivalents approximate their fair value because of the short-term nature of these instruments.

Held-to-maturity Securities - Held-to-maturity securities, which generally consist of obligations of state and political subdivisions and corporate bonds, are recorded at their amortized cost. Their fair value for disclosure purposes is determined using methodologies similar to those described above for available-for-sale securities using Level 2 inputs. If Level 2 inputs are not available, we may utilize pricing models that incorporate unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities (Level 3).  As of December 31, 2016 and 2015, we did not hold any held-to-maturity securities whose fair value was measured using significant unobservable inputs.

Loans - The fair value of loans with variable interest rates approximates their current carrying value, because their rates are regularly adjusted to current market rates. The fair value of fixed rate loans or variable loans at negotiated interest rate floors or ceilings with remaining maturities in excess of one year is estimated by discounting the future cash flows using current market rates at which similar loans would be made to borrowers with similar creditworthiness and similar remaining maturities. The allowance for loan losses (“ALLL”) is considered to be a reasonable estimate of the portion of loan discount attributable to credit risks.

Interest Receivable and Payable - The interest receivable and payable balances approximate their fair value due to the short-term nature of their settlement dates.

Deposits - The fair value of deposits without stated maturity, such as transaction accounts, savings accounts and money market accounts, is the amount payable on demand at the reporting date. The fair value of time deposits is estimated by discounting the future cash flows using current rates offered for deposits of similar remaining maturities.

Federal Home Loan Bank Borrowing - The fair value is estimated by discounting the future cash flows using current rates offered by the Federal Home Loan Bank of San Francisco ("FHLB") for similar credit advances corresponding to the remaining term of our fixed-rate credit advances.

Subordinated Debentures - The fair values of the subordinated debentures were estimated by discounting the future cash flows (interest payment at a rate of three-month LIBOR plus 3.05% and 1.40%) to their present values using current market rates at which similar bonds would be issued with similar credit ratings as ours and similar remaining maturities. Each interest payment was discounted at the spot rate of the corresponding term, determined based on the yields and terms of comparable trust preferred securities, plus a liquidity premium. In July 2010, the Dodd-Frank Act was signed into law and limits the ability of certain bank holding companies to treat trust preferred security debt issuances as Tier 1 capital. This law effectively closed the trust-preferred securities markets for new issuances and led to the absence of observable or comparable transactions in the market place. Due to the use of unobservable inputs of trust preferred securities, we consider the fair value to be a Level 3 measurement. See Note 7, Borrowings for further information.

Commitments - The value of unrecognized financial instruments is estimated based on the fee income associated with the commitments which, in the absence of credit exposure, is considered to approximate their settlement value. The fair value of commitment fees was not material as of December 31, 2016 and 2015, respectively.

Note 10: Benefit Plans

In 2003, we established a Deferred Compensation Plan that allows certain key Management personnel designated by the Board of Directors of the Bank to defer up to 80% of their salary and 100% of their annual bonus. The plan was amended in 2007 in order to comply with the most recent Internal Revenue Code Section 409A changes. Under the amended plan, amounts deferred earn interest that is equal to the prime rate as published in the Wall Street Journal, on the first business day of the year, which was 3.5% on January 1, 2016, and 3.25% on both January 1, 2015 and 2014. Our deferred compensation obligation totaled $3.2 millionand$3.0 million at December 31, 2016 and 2015, respectively, and is included in interest payable and other liabilities.

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Our 401(k) Defined Contribution Plan (the “401(k) Plan”) commenced in May 1990 and is available to all regular employees at least eighteen years of age who complete ninety days of service, and enter the plan during one of the four open enrollment dates (January 1, April 1, July 1, and October 1) of each year. Under the 401(k) Plan, employees can defer between 1% and 50% of their eligible compensation, up to the maximum amount allowed by the Internal Revenue Code. Contributions to the 401(k) Plan for the employer match are vested at a rate of 20% per year over a five year period. The Bank matched 50% of each participant's contribution prior to 2013 at which time the Bank increased the match to 60%, with a maximum of $4 thousand annually. Employer contributions totaled $589 thousand, $555 thousand and $548 thousand for the years ended December 31, 2016, 2015 and 2014, respectively.

In 1999, the 401(k) Plan was amended to include an employee stock ownership component and was renamed the Bank of Marin Employee Stock Ownership and Savings Plan (the “Plan”). Under the terms of the Plan, as amended, the Board of Directors determines a specific portion of the Bank's profits to be contributed to the employee stock ownership each year either in common stock or in cash for the purchase of Bancorp stock to be allocated to all eligible employees based on a percentage of their salaries, regardless of whether an employee is participating in the 401(k) plan or not. In January 2010, the Bank of Marin Employee Stock Ownership and Savings Plan was split into two plans: Bank of Marin 401(k) Plan and Bank of Marin Employee Stock Ownership Plan ("ESOP"). The same eligibility criteria apply under the ESOP, while employees' contributions are not permitted. For all participants, employer contributions vest over a five year period of service. After five years of service, all employer contributions vest immediately. The Bank of Marin 401(k) Plan was amended in early 2016 to incorporate recent changes in the pension laws, and was amended again in November 2016 to include a Roth 401(k) option.

The Bank contributed cash in the amount of $1.2 million, $1.1 million and $1.2 million in 2016, 2015 and 2014, respectively, to the ESOP, which purchased Bancorp stock at market prices. Cash dividends paid on Bancorpstock held by the ESOP are used to purchase additional shares in the open market.All shares of Bancorp stock held by the ESOP are included in the calculations of basic and diluted earnings per share. The employer contributions to the ESOP and the 401(k) Plan are included in salaries and benefits expense.

On January 1, 2011, we established a Salary Continuation Plan for a select group of Executive Management, who will receive twenty-five percent of their estimated salary at retirement as salary continuation benefit payments upon retirement.  Each participant will need to participate in this plan for five years before vesting begins. After five years, the participant will vest ratably in the benefit over the remaining period until age 65. This Plan is unfunded and nonqualified for tax purposes and for purposes of Title I of the Employee Retirement Income Security Act of 1974. At December 31, 2016 and 2015, respectively, our liability under the Salary Continuation Plan was $1.0 million and $823 thousand recorded in interest payable and other liabilities.

Note 11: Income Taxes

The current and deferred components of the income tax provision for each of the three years ended December 31 are as follows:

(in thousands)	2016			2015		2014
Current tax provision
Federal	$	9,710		$	7,097	$	8,523
State	3,794			2,931		3,195
Total current	13,504			10,028		11,718
Deferred tax provision (benefit)
Federal	(206		)	382		(146		)
State	48			80		126
Total deferred	(158		)	462		(20		)
Total income tax provision	$	13,346		$	10,490	$	11,698

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The following table shows the tax effect of our cumulative temporary differences as of December 31:

(in thousands)	2016			2015
Deferred tax assets:
Allowance for loan losses and off-balance sheet credit commitments	$	6,871		$	5,918
Net operating loss carryforwards	3,582			4,090
Net unrealized loss on securities available-for-sale	2,543			59
Deferred compensation plan and salary continuation plan	1,773			1,619
State franchise tax	1,300			1,005
Accrued but unpaid expenses	1,251			1,188
Fair value adjustment on acquired loans	799			1,197
Deferred rent and other lease incentives	547			595
Depreciation and disposals on premises and equipment	528			231
Other real estate owned	448			448
Stock-based compensation	398			273
Interest received on non-accrual loans	185			864
Other	196			381
Total gross deferred tax assets	20,421			17,868
Deferred tax liabilities:
Deferred loan origination costs and fees	(2,784		)	(2,567		)
Unaccreted discount on subordinated debentures	(1,119		)	(1,200		)
Core deposit intangible asset	(1,085		)	(1,309		)
Accretion on investment securities	(54		)	(55		)
Other	(42		)	(42		)
Total gross deferred tax liabilities	(5,084		)	(5,173		)
Net deferred tax assets	$	15,337		$	12,695

As of December 31, 2016, federal and California net operating loss carryforwards ("NOLs") of $6.3 million and $19.3 million, respectively, corresponded to the total $3.6 million deferred tax asset above. If not fully utilized, the federal NOLs will begin to expire in 2029, and the California NOLs will begin to expire in 2028. Based upon the level of historical taxable income and projections for future taxable income over the periods during which the deferred tax assets are expected to be deductible, Management believes it is more likely than not we will realize the benefit of the remaining deferred tax assets. Accordingly, no valuation allowance has been established as of December 31, 2016 or 2015.

The effective tax rate for 2016, 2015 and 2014 differs from the current federal statutory income tax rate as follows:

	2016		2015		2014
Federal statutory income tax rate	35.0	%	35.0	%	35.0	%
Increase (decrease) due to:
California franchise tax, net of federal tax benefit	6.8	%	6.8	%	6.8	%
Tax exempt interest on municipal securities and loans	(4.0	)%	(4.2	)%	(3.3	)%
Tax exempt earnings on bank owned life insurance	(0.8	)%	(1.0	)%	(0.9	)%
Low income housing and qualified zone academy bond tax credits	(0.3	)%	(0.2	)%	(0.1	)%
Other	(0.1	)%	(0.1	)%	(0.3	)%
Effective Tax Rate	36.6	%	36.3	%	37.2	%

Bancorp and the Bank have entered into a tax allocation agreement which provides that income taxes shall be allocated between the parties on a separate entity basis. The intent of this agreement is that each member of the consolidated group will incur no greater tax liability than it would have incurred on a stand-alone basis.

We file a consolidated return in the U.S. Federal tax jurisdiction and a combined return in the State of California tax jurisdiction. There were no ongoing federal or state income tax examinations at the issuance of this report. We are

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no longer subject to examinations by tax authorities for years before 2013 for federal income tax and before 2012 for California. At December 31, 2016 and 2015, there were no unrecognized tax benefits, and neither the Bank nor Bancorp had accruals for interest and penalties related to unrecognized tax benefits.

Note 12:  Commitments and Contingencies

We rent certain premises under long-term, non-cancelable operating leases expiring at various dates through the year 2032. Most of the leases contain certain renewal options and escalation clauses. At December 31, 2016, the approximate minimum future commitments payable under non-cancelable contracts for leased premises are as follows:

(in thousands)	2017		2018		2019		2020		2021		Thereafter		Total
Operating leases1	$	3,850	$	3,919	$	3,725	$	3,405	$	2,114	$	4,069	$	21,082

¹ Minimum payments have not been reduced by minimum sublease rentals of $151 thousand due in the future under non-cancelable subleases.

Rent expense included in occupancy expense totaled $3.9 million in 2016 and $4.2 million in 2015 and 2014, respectively.

Litigation Matters

We may be party to legal actions which arise from time to time as part of the normal course of our business.  We believe, after consultation with legal counsel, that we have meritorious defenses in these actions, and that litigation contingent liability, if any, will not have a material adverse effect on our financial position, results of operations, or cash flows.

We are responsible for our proportionate share of certain litigation indemnifications provided to Visa U.S.A. ("Visa") by its member banks in connection with lawsuits related to anti-trust charges and interchange fees ("Covered Litigation"). Visa maintains an escrow account from which settlements of, or judgments in, the Covered Litigation are paid. While the accrual related to the Covered Litigation could be higher or lower than the litigation escrow account balance, Visa did not record an additional accrual for the Covered Litigation during 2016. At December 31, 2016, according to the latest SEC Form 10-Q filed by Visa, Inc. on February 2, 2017, the balance of the escrow account was $1.0 billion. Visa had reached a $4.0 billion interchange multidistrict litigation class settlement agreement. However, a number of objectors have appealed and on June 30, 2016, an appellate court reversed the approval of the settlement by the lower court. Until the appeal process is complete, Visa is uncertain whether it will resolve the claims as contemplated by the settlement agreement and additional lawsuits may arise. The conversion rate of Visa Class B common stock held by us to Class A common stock (as discussed in Note 2, Investment Securities) may decrease if Visa makes more Covered Litigation settlement payments in the future, and the full effect on member banks is still uncertain. However, we are not aware of significant future cash settlement payments required by us on the Covered Litigation.

Note 13: Concentrations of Credit Risk

Concentration of credit risk is the risk associated with a lack of diversification, such as having substantial investments in a few individual issuers, thereby exposing us to greater risks resulting from adverse economic, political, regulatory, geographic, industrial or credit developments. Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash and cash equivalents, investment securities and loans.

Our cash in correspondent bank accounts, at times, may exceed FDIC insured limits. We place cash and cash equivalents with high quality financial institutions, periodically monitor their credit worthiness and limit the amount of credit exposure with any one institution according to regulations. Concentrations of credit risk with respect to investment securities are limited to the U.S. Government, its agencies and Government Sponsored Enterprises ("GSEs") and was $299.5 million, or 72% of our total investment portfolio at December 31, 2016 and $362.6 million, or 74.4% at December 31, 2015.

We also manage our credit exposure related to our loan portfolio to avoid the risk of undue concentration of credits in a particular industry by reducing significant exposure to highly leveraged transactions or to any individual customer or counterparty, and by obtaining collateral as appropriate. No individual borrower accounts for more than 5% of loans held in the portfolio. The largest loan concentration group by industry of the borrowers is real estate, which accounts for 79% and 80% of our loan portfolio at December 31, 2016 and 2015, respectively.

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Note 14: Derivative Financial Instruments and Hedging Activities

We have entered into interest rate swap agreements, primarily as an asset/liability management strategy, in order to mitigate the changes in the fair value of specified long-term fixed-rate loans (or firm commitments to enter into long-term fixed-rate loans) caused by changes in interest rates. These hedges allow us to offer long-term fixed rate loans to customers without assuming the interest rate risk of a long-term asset. Converting our fixed-rate interest payments to floating-rate interest payments, generally benchmarked to the one-month U.S. dollar LIBOR index, protects us against changes in the fair value of our loans associated with fluctuating interest rates.

Our credit exposure, if any, on interest rate swap asset positions is limited to the fair value (net of any collateral pledged to us) and interest payments of all swaps by each counterparty. Conversely, when an interest rate swap is in a liability position exceeding a certain threshold, we may be required to post collateral to the counterparty in an amount determined by the agreements. Collateral levels are monitored and adjusted on a regular basis for changes in interest rate swap values.

As of December 31, 2016, we had five interest rate swap agreements, which are scheduled to mature in June 2031, October 2031, July 2032, August 2037 and October 2037. All of our derivatives are accounted for as fair value hedges. The notional amounts of the interest rate contracts are equal to the notional amounts of the hedged loans. In September 2016 and April 2016, respectively, one interest rate swap scheduled to mature in August 2020 and another one scheduled to mature in June 2020 were terminated as the hedged loans were paid off. In both cases, prepayment fees were collected from the borrowers to settle the interest rate swap liability, resulting in no net gain or loss on the terminations of the swaps and loan pay-offs. Our interest rate swap payments are settled monthly with counterparties. Accrued interest on the swaps totaled $13 thousand and $28 thousand as of December 31, 2016 and 2015, respectively. Information on our derivatives follows:

	Asset derivatives				Liability derivatives
(in thousands)	December 31, 2016		December 31, 2015		December 31, 2016		December 31, 2015
Fair value hedges:
Interest rate contracts notional amount	$	4,217	$	4,407	$	15,495	$	22,187
Interest rate contracts fair value 1	$	55	$	3	$	933	$	1,658

	Years ended December 31,
(in thousands)	2016			2015			2014
Increase (decrease) in value of designated interest rate swaps due to LIBOR interest rate movements recognized in interest income	$	778		$	280		$	(377	)
Payment on interest rate swaps recorded in interest income	(556		)	(918		)	(1,002		)
(Decrease) increase in value of hedged loans recognized in interest income	(571		)	(308		)	662
Decrease in value of yield maintenance agreement recognized against interest income	(94		)	(52		)	(91		)
Net loss on derivatives recognized against interest income 2	$	(443	)	$	(998	)	$	(808	)

¹ See Note 9, Fair Value of Assets and Liabilities for valuation methodology.

² Includes hedge ineffectiveness gain of $113 thousand, loss of $80 thousandand gain of $194 thousand for the years December 31, 2016, 2015 and 2014, respectively. Changes in value of swaps were included in the assessment of hedge effectiveness. Hedge ineffectiveness is the measure of the extent to which the change in the fair value of the hedging instruments does not exactly offset the change in the fair value of the hedged items from period to period.

Our derivative transactions with counterparties are under International Swaps and Derivative Association (“ISDA”) master agreements that include “right of set-off” provisions. “Right of set-off” provisions are legally enforceable rights to offset recognized amounts and there may be an intention to settle such amounts on a net basis. We do not offset such financial instruments for financial reporting purposes.

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Information on financial instruments that are eligible for offset in the consolidated statements of condition follows:

Offsetting of Financial Assets and Derivative Assets
							Gross Amounts Not Offset in the Statements of Condition
			Gross Amounts		Net Amounts
	Gross Amounts		Offset in the		of Assets Presented
	of Recognized		Statements of		in the Statements		Financial			Cash Collateral
(in thousands)	Assets1		Condition		of Condition1		Instruments			Received		Net Amount
December 31, 2016
Derivatives by Counterparty:
Counterparty A	$	55			$	55	$	(55	)			$	—
Total	$	55	$	—	$	55	$	(55	)	$	—	$	—
December 31, 2015
Derivatives by Counterparty:
Counterparty A	$	3	$	—	$	3	$	(3	)	$	—	$	—
Total	$	3	$	—	$	3	$	(3	)	$	—	$	—

¹ Amounts exclude accrued interest totaling $1 thousand at both December 31, 2016 and December 31, 2015, respectively.

Offsetting of Financial Liabilities and Derivative Liabilities
							Gross Amounts Not Offset in the Statements of Condition
			Gross Amounts		Net Amounts of
	Gross Amounts		Offset in the		Liabilities Presented
	of Recognized		Statements of		in the Statements of		Financial			Cash Collateral
(in thousands)	Liabilities2		Condition		Condition2		Instruments			Pledged			Net Amount
December 31, 2016
Derivatives by Counterparty:
Counterparty A	$	933			$	933	$	(55	)	(878		)	$	—
Total	$	933	$	—	$	933	$	(55	)	$	(878	)	$	—
December 31, 2015
Derivatives by Counterparty:
Counterparty A	$	1,390	$	—	$	1,390	$	(3	)	$	(1,387	)	$	—
Counterparty B	268		—		268		—			(268		)	—
Total	$	1,658	$	—	$	1,658	$	(3	)	$	(1,655	)	$	—

² Amounts exclude accrued interest totaling $12 thousand and $27 thousand at December 31, 2016 and December 31, 2015, respectively.

Note 15: Regulatory Matters

We are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements as set forth in the tables below can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a material effect on our consolidated financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, we must meet specific capital guidelines that involve quantitative measures of our assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. The capital amounts and the Bank’s prompt corrective action classification are also subject to qualitative judgments by the regulators about components of capital, risk weightings and other factors.

Capital ratios are reviewed by Management on a regular basis to ensure that capital exceeds the prescribed regulatory minimums and is adequate to meet our anticipated future needs.  For all periods presented, the Bank’s ratios exceed the regulatory definition of “well capitalized” under the regulatory framework for prompt corrective action and Bancorp’s ratios exceed the required minimum ratios to be considered a well capitalized bank holding company. In addition, the most recent notification from the FDIC categorized the Bank as well capitalized under the regulatory framework for prompt corrective action as of December 31, 2016. There are no conditions or events since that notification that

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Management believes have changed the Bank’s categories and we expect the Bank to remain well capitalized for prompt corrective action purposes.

In July 2013, the Board of Governors of the Federal Reserve, the FDIC and the Office of the Comptroller of the Currency, finalized regulatory capital rules known as “Basel III.” The rules became effective beginning January 2015, and will be fully phased-in by January 2019. The guidelines, among other things, changed the minimum capital requirements of banks and bank holding companies, by increasing the Tier 1 capital to risk-weighted assets ratio to 6%, and introduced a new requirement to maintain a minimum ratio of common equity Tier 1 capital to risk-weighted assets of 4.5%. By 2019, when fully phased in, the rules will require further increases to certain minimum capital requirements and a capital conservation buffer of an additional 2.5% of risk-weighted assets. Basel III permits certain banks such as us to exclude accumulated other comprehensive income or loss from regulatory capital through a one-time election in the first quarter of 2015. As it was consistent with our existing treatment, there were no changes to our capital ratios as a result of making this election. The changes that affected us most significantly include:

• shifting off-balance sheet items with an original maturity of one year or less from 0% to 20% risk weight,

• moving past due loan balances from 100% to 150% risk weight,

• deducting deferred tax assets associated with NOLs and tax credits from common equity Tier 1 capital, and

• subjecting deferred tax assets related to temporary timing differences that exceed certain thresholds to 250% risk-weighting, beginning in 2018.

We have modeled our ratios under fully phased-in Basel III rules and, based on present facts, we do not expect that we will be required to raise additional capital as a result of the fully phased-in rules.

The Bancorp’s and Bank's capital adequacy ratios as of December 31, 2016 and 2015 are presented in the following tables. Bancorp's Tier 1 capital includes the subordinated debentures, which are not included at the Bank level. We continued to build capital in 2016 through the accumulation of net income.

Capital Ratios for Bancorp (dollars in thousands)	Actual Ratio				Adequately Capitalized Threshold 1				Ratio to be a Well Capitalized Bank Holding Company
December 31, 2016	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total Capital (to risk-weighted assets)	$	247,453	14.32	%	≥ $	149,039	≥ 8.625	%	≥ $	172,799	≥ 10.000	%
Tier 1 Capital (to risk-weighted assets)	$	231,111	13.37	%	≥ $	114,479	≥ 6.625	%	≥ $	138,239	≥ 8.000	%
Tier 1 Capital (to average assets)	$	231,111	11.39	%	≥ $	81,189	≥ 4.000	%	≥ $	101,486	≥ 5.000	%
Common Equity Tier 1 (to risk-weighted assets)	$	225,925	13.07	%	≥ $	88,559	≥ 5.125	%	≥ $	112,319	≥ 6.500	%
December 31, 2015
Total Capital (to risk-weighted assets)	$	227,269	13.37	%	≥ $	135,996	≥ 8.000	%	≥ $	169,995	≥ 10.000	%
Tier 1 Capital (to risk-weighted assets)	$	211,521	12.44	%	≥ $	101,997	≥ 6.000	%	≥ $	135,996	≥ 8.000	%
Tier 1 Capital (to average assets)	$	211,521	10.67	%	≥ $	79,296	≥ 4.000	%	≥ $	99,120	≥ 5.000	%
Common Equity Tier 1 (to risk-weighted assets)	$	206,724	12.16	%	≥ $	76,498	≥ 4.500	%	≥ $	110,497	≥ 6.500	%
1 The 2016 adequately capitalized threshold includes the capital conservation buffer that was effective January 1, 2016. These ratios are not reflected on a fully phased-in basis, which will occur in January 2019.

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Capital Ratios for the Bank (dollars in thousands)	Actual Ratio				Adequately Capitalized Threshold 1				Ratio to be Well Capitalized under Prompt Corrective Action Provisions
December 31, 2016	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total Capital (to risk-weighted assets)	$	243,468	14.09	%	≥ $	149,016	≥ 8.625	%	≥ $	172,772	≥ 10.000	%
Tier 1 Capital (to risk-weighted assets)	$	227,127	13.15	%	≥ $	114,462	≥ 6.625	%	≥ $	138,218	≥ 8.000	%
Tier 1 Capital (to average assets)	$	227,127	11.19	%	≥ $	81,176	≥ 4.000	%	≥ $	101,469	≥ 5.000	%
Common Equity Tier 1 (to risk-weighted assets)	$	227,127	13.15	%	≥ $	88,546	≥ 5.125	%	≥ $	112,302	≥ 6.500	%
December 31, 2015
Total Capital (to risk-weighted assets)	$	222,830	13.11	%	≥ $	135,968	≥ 8.000	%	≥ $	169,960	≥ 10.000	%
Tier 1 Capital (to risk-weighted assets)	$	207,082	12.18	%	≥ $	101,976	≥ 6.000	%	≥ $	135,968	≥ 8.000	%
Tier 1 Capital (to average assets)	$	207,082	10.45	%	≥ $	79,268	≥ 4.000	%	≥ $	99,085	≥ 5.000	%
Common Equity Tier 1 (to risk-weighted assets)	$	207,082	12.18	%	≥ $	76,482	≥ 4.500	%	≥ $	110,474	≥ 6.500	%
1 The 2016 adequately capitalized threshold includes the capital conservation buffer that was effective January 1, 2016. These ratios are not reflected on a fully phased-in basis, which will occur in January 2019.

Note 16:  Financial Instruments with Off-Balance Sheet Risk

We make commitments to extend credit in the normal course of business to meet the financing needs of our customers. These financial instruments include commitments to extend credit in the form of loans or through standby letters of credit. Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Because various commitments will expire without being fully drawn upon, the total commitment amount does not necessarily represent future cash requirements.

We are exposed to credit loss equal to the contract amount of the commitment in the event of nonperformance by the borrower. We use the same credit underwriting criteria for all credit exposure. The amount of collateral obtained, if deemed necessary by us, is based on Management's credit evaluation of the borrower. Collateral types pledged may include accounts receivable, inventory, other personal property and real property.

The contractual amount of undrawn loan commitments and standby letters of credit not reflected on the consolidated statements of condition are as follows:

(in thousands)	December 31, 2016		December 31, 2015
Commercial lines of credit	$	216,774	$	191,305
Revolving home equity lines	148,143		130,359
Undisbursed construction loans	44,798		39,442
Personal and other lines of credit	10,635		11,112
Standby letters of credit	1,939		4,381
Total commitments and standby letters of credit	$	422,289	$	376,599

We record an allowance for losses on these off-balance sheet commitments based on an estimate of probabilities of these commitments being drawn upon according to our historical utilization experience on different types of commitments and expected loss severity. We set aside an allowance for losses on off-balance sheet commitments in the amount of $899 thousand and $749 thousand as of December 31, 2016 and 2015, respectively, which is recorded in interest payable and other liabilities on the consolidated statements of condition. The increase in the reserve for off-balance sheet commitments in 2016 was primarily due to an increase in commitments and a decrease in average utilization. Approximately 42% of the commitments expire in 2017, approximately 42% expire between 2018 and 2024 and approximately 16% expire thereafter.

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Note 17:  Condensed Bank of Marin Bancorp Parent Only Financial Statements

Presented below is financial information for Bank of Marin Bancorp, parent holding company only.

CONDENSED UNCONSOLIDATED STATEMENTS OF CONDITION
December 31, 2016 and 2015
(in thousands)	2016		2015
Assets
Cash and due from Bank of Marin	$	3,568	$	3,796
Investment in bank subsidiary	232,431		215,722
Other assets	670		770
Total assets	$	236,669	$	220,288
Liabilities and Stockholders' Equity
Subordinated debentures	$	5,586	$	5,395
Accrued expenses payable	96		109
Other liabilities	424		311
Total liabilities	6,106		5,815
Stockholders' equity	230,563		214,473
Total liabilities and stockholders' equity	$	236,669	$	220,288

CONDENSED UNCONSOLIDATED STATEMENTS OF INCOME
Years ended December 31, 2016, 2015 and 2014
(in thousands)	2016		2015		2014
Income
Dividends from bank subsidiary	$	6,400	$	6,500	$	—
Miscellaneous Income	7		6		8
Total income	6,407		6,506		8
Expense
Interest expense	435		420		421
Non-interest expense	984		973		851
Total expense	1,419		1,393		1,272
Income (loss) before income taxes and equity in undistributed net income of subsidiary	4,988		5,113		(1,264		)
Income tax benefit	594		583		532
Income (loss) before equity in undistributed net income of subsidiary	5,582		5,696		(732		)
Earnings of bank subsidiary greater (less) than dividends received from bank subsidiary	17,552		12,745		20,503
Net income	$	23,134	$	18,441	$	19,771

Page-92

CONDENSED UNCONSOLIDATED STATEMENTS OF CASH FLOWS
Years ended December 31, 2016, 2015 and 2014
(in thousands)	2016			2015			2014
Cash Flows from Operating Activities:
Net income	$	23,134		$	18,441		$	19,771
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Earnings of bank subsidiary greater than dividends received from bank subsidiary	(17,552		)	(12,745		)	(20,503		)
Net change in operating assets and liabilities:
Accretion of discount on subordinated debentures	191			210			216
Other assets	353			(298		)	(88		)
Intercompany receivable	171			(18		)	—
Other liabilities	(302		)	368			(99		)
Net cash provided by (used in) operating activities	5,995			5,958			(703		)
Cash Flows from Investing Activities:
Capital contribution to subsidiary	(1,285		)	(1,156		)	(1,475		)
Net cash used in investing activities	(1,285		)	(1,156		)	(1,475		)
Cash Flows from Financing Activities:
Stock options exercised and stock purchases	1,285			1,156			1,475
Dividends paid on common stock	(6,223		)	(5,390		)	(4,733		)
Net cash used by financing activities	(4,938		)	(4,234		)	(3,258		)
Net (decrease) increase in cash and cash equivalents	(228		)	568			(5,436		)
Cash and cash equivalents at beginning of period	3,796			3,228			8,664
Cash and cash equivalents at end of period	$	3,568		$	3,796		$	3,228
Supplemental schedule of non-cash investing and financing activities:
Stock issued in payment of director fees	$	234		$	275		$	236

End of 2016 Audited Consolidated Financial Statements

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

ITEM 9A.CONTROLS AND PROCEDURES

(A)Evaluation of Disclosure Controls and Procedures

Bank of Marin Bancorp and its subsidiary (the "Company") conducted an evaluation under the supervision and with the participation of our Management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rule 13a-15(e) or 15d-15(e) under the Exchange Act of 1934 (the “Act”)) as of the end of the period covered by this report. The term disclosure controls and procedures means controls and other procedures that are designed to ensure that information required to be disclosed by us in the reports that we file or submit under the Act (15 U.S.C. 78a etseq.) is recorded, processed, summarized and reported within the time periods specified in the Commission's rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by us in the reports that we file or submit under the Act is accumulated and communicated to our Management, including our principal executive and principal financial officers, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure. Based upon that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of the end of the period covered by this report.

Page-93

(B)Management's Annual Report on Internal Control over Financial Reporting

Management is responsible for establishing and maintaining effective internal control over financial reporting (as defined in Rules 13a-15(f) promulgated under the 1934 Act). The internal control process has been designed under our supervision to provide reasonable assurance regarding the reliability of financial reporting and the preparation of the Company's financial statements for external reporting purposes in accordance with accounting principles generally accepted in the United States of America. Management conducted an assessment of the effectiveness of internal control over financial reporting as of December 31, 2016, utilizing the framework established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Based on this assessment, Management has concluded that the Company maintained effective internal control over financial reporting as of December 31, 2016.

There are inherent limitations to the effectiveness of any system of internal control over financial reporting. These limitations include the possibility of human error, the circumvention or overriding of the system and reasonable resource constraints. Because of its inherent limitations, our internal control over financial reporting may not prevent or detect misstatements. Projections of any evaluation of effectiveness to future periods are subject to the risks that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Management's report on internal control over financial reporting is set forth in Item 8 and is incorporated herein by reference.

(C)Audit Report of the Registered Public Accounting Firm

The Company's independent registered public accounting firm, Moss Adams, LLP, has audited the effectiveness of internal control over financial reporting as of December 31, 2016 as stated in their audit report, which is included in item 8 and incorporated herein by reference.

(D)Changes in Internal Control Over Financial Reporting

During the quarter ended December 31, 2016, there were no significant changes that materially affected, or are reasonably likely to affect, our internal control over financial reporting identified in connection with the evaluation mentioned in (B) above.

ITEM 9B.OTHER INFORMATION

None.

PART III     

ITEM 10.    DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

The information required by this Item is incorporated by reference from our Proxy Statement for the 2017 Annual Meeting of Shareholders. Bancorp and the Bank have adopted a Code of Ethics that applies to all staff including the Chief Executive Officer, Chief Financial Officer and Principal Accounting Officer. A copy of the Code of Ethical Conduct, which is also included on our website, will be provided to any person, without charge, upon written request to Corporate Secretary, Bank of Marin Bancorp, 504 Redwood Boulevard, Suite 100, Novato, CA 94947. During 2016 there were no changes in the procedures for the election or nomination of directors.

ITEM 11.     EXECUTIVE COMPENSATION

The information required by this Item is incorporated by reference from our Proxy Statement for the 2017 Annual Meeting of Shareholders.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND

Page-94

RELATED STOCKHOLDER MATTERS

The information required by this Item is incorporated by reference from Item 5 above, Note 8 to our audited consolidated financial statements and our Proxy Statement for the 2017 Annual Meeting of Shareholders.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

The information required by this Item is incorporated by reference from our Proxy Statement for the 2017 Annual Meeting of Shareholders.

ITEM 14.    PRINCIPAL ACCOUNTANT FEES AND SERVICES

The information required by this Item is incorporated by reference from our Proxy Statement for the 2017 Annual Meeting of Shareholders.

Page-95

PART IV

ITEM 15.    Exhibits and Financial Statement Schedules

(A)     Documents Filed as Part of this Report

1.     Financial Statements

The financial statements and supplementary data listed below are filed as part of this report under Item 8, captioned Financial Statements and Supplementary Data.

Report of Independent Registered Public Accounting Firm for the years ended December 31, 2016, 2015 and 2014

Management's Report on Internal Control over Financial Reporting     

Consolidated Statements of Condition as of December 31, 2016 and 2015

Consolidated Statements of Comprehensive Income for the Years Ended December 31, 2016, 2015 and 2014

Consolidated Statement of Changes in Stockholders' Equity for the Years Ended December 31, 2016, 2015 and 2014

Consolidated Statement of Cash Flows for the Years Ended December 31, 2016, 2015 and 2014

Notes to Consolidated Financial Statements    

2.     Financial Statement Schedules

All financial statement schedules have been omitted, as they are inapplicable or the required information is included in the financial statements or notes thereto.

(B)    Exhibits Filed

The following exhibits are filed as part of this report or hereby incorporated by references to filings previously made with the SEC.

Page-96

		Incorporated by Reference
Exhibit Number	Exhibit Description	Form	File No.	Exhibit	Filing Date	Herewith
2.01	Modified Whole Bank Purchase and Assumption Agreement dated February 18, 2011 among Federal Deposit Insurance Corporation, Receiver of Charter Oak Bank, Napa, California, Federal Deposit Insurance Corporation, and Bank of Marin	8-K	001-33572	99.2	February 28, 2011
2.02	Agreement and Plan of Merger with NorCal Community Bancorp, dated July 1, 2013	8-K	001-33572	2.1	July 5, 2013
3.01	Articles of Incorporation, as amended	10-Q	001-33572	3.01	November 7, 2007
3.02	Bylaws	10-Q	001-33572	3.02	May 9, 2011
3.02a	Bylaw Amendment	8-K	001-33572	3.03	July 6, 2015
4.01	Rights Agreement dated as of July 2, 2007	8-A12B	001-33572	4.1	July 2, 2007
4.01a	Rights Agreement, Amendment No. 1, dated June 17, 2016	8-K	001-33572	4.2	June 22, 2016
10.01	2007 Employee Stock Purchase Plan	S-8	333-144810	4.1	July 24, 2007
10.03	1999 Stock Option Plan	S-8	333-144808	4.1	July 24, 2007
10.04	2007 Equity Plan	S-8	333-144809	4.1	July 24, 2007
10.05	2010 Director Stock Plan	S-8	333-167639	4.1	June 21, 2010
10.06	Form of Indemnification Agreement for Directors and Executive Officers dated August 9, 2007	10-Q	001-33572	10.06	November 7, 2007
10.07	Form of Employment Agreement dated January 23, 2009	8-K	001-33572	10.1	January 26, 2009
10.09	2010 Annual Individual Incentive Compensation Plan	8-K	001-33572	99.1	October 21, 2010
10.10a	Salary Continuation Agreements with executive officers, Russell Colombo, Chief Executive Officer, and Peter Pelham, Director of Retail Banking, dated January 1, 2011	8-K	001-33572	10.1 10.4	January 6, 2011
10.10b	Salary Continuation Agreements with executive officers Tani Girton, Chief Financial Officer, dated October 18, 2013 and Elizabeth Reizman, Chief Credit Officer, dated July 20, 2014	8-K	001-33572	10.2 10.3	November 4, 2014
10.10c	Salary Continuation Agreement for executive officer Timothy Myers, Executive Vice President and Commercial Banking Manager, dated May 28, 2015	8-K	001-33572	10.4	June 2, 2015
10.11	2007 Form of Change in Control Agreement	8-K	001-33572	10.1	October 31, 2007
10.12	Information Technology Services Agreement with Fidelity Information Services, LLC, dated July 11, 2012	8-K	001-33572	10.1	July 17, 2012
11.01	Earnings Per Share Computation - included in Note 1 to the Consolidated Financial Statements					Filed
14.02	Code of Ethical Conduct, dated June 17, 2016		001-33572	14.02		Filed
23.01	Consent of Moss Adam LLP					Filed
31.01	Certification of Principal Executive Officer pursuant to Rule 13a-14(a)/15d-14(a) as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002					Filed
31.02	Certification of Principal Financial Officer pursuant to Rule 13a-14(a)/15d-14(a) as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002					Filed
32.01	Certification pursuant to 18 U.S.C. §1350 as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002					Filed
101.01*	XBRL Interactive Data File					Furnished

*    As provided in Rule 406T of Regulation S-T, this information is furnished and not filed for purposes of Sections 11 and 12

of the Securities Act of 1933 and Section 18 of the Securities Exchange Act of 1934.

Page-97

ITEM 16.     Form 10-K Summary

None.

Page-98

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	Bank of Marin Bancorp (registrant)
March 13, 2017	/s/ Russell A. Colombo
Date	Russell A. Colombo
	President &
	Chief Executive Officer
	(Principal Executive Officer)
March 13, 2017	/s/ Tani Girton
Date	Tani Girton
	Executive Vice President &
	Chief Financial Officer
	(Principal Financial Officer)
March 13, 2017	/s/ Cecilia Situ
Date	Cecilia Situ
	First Vice President &
	Manager of Finance & Treasury
	(Principal Accounting Officer)

Page-99

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Dated:	March 13, 2017	/s/ Tani Girton
		Tani Girton
		Executive Vice President & Chief Financial Officer
		(Principal Financial Officer)
Dated:	March 13, 2017	/s/ Cecilia Situ
		Cecilia Situ
		First Vice President & Manager of Finance & Treasury
		(Principal Accounting Officer)

		Members of Bank of Marin Bancorp's Board of Directors
Dated:	March 13, 2017	/s/ Brian M. Sobel
		Brian M. Sobel
		Chairman of the Board
Dated:	March 13, 2017	/s/ Russell A. Colombo
		Russell A. Colombo
		President & Chief Executive Officer
		(Principal Executive Officer)
Dated:	March 13, 2017	/s/ James C. Hale
		James C. Hale
Dated:	March 13, 2017	/s/ Robert Heller
		Robert Heller
Dated:	March 13, 2017	/s/ Norma J. Howard
		Norma J. Howard
Dated:	March 13, 2017	/s/ Kevin Kennedy
		Kevin Kennedy
Dated:	March 13, 2017	/s/ William H. McDevitt, Jr.
		William H. McDevitt, Jr.
Dated:	March 13, 2017	/s/ Leslie Murphy
		Leslie Murphy
Dated:	March 13, 2017	/s/ Michaela Rodeno
		Michaela Rodeno
Dated:	March 13, 2017	/s/ Joel Sklar
		Joel Sklar, M.D.

Page-100

EXHIBIT INDEX
Exhibit No.	Description	Location
14.02	Code of Ethical Conduct, dated June 17, 2016	Filed herewith.
23.01	Consent of Moss Adams LLP.	Filed herewith.
31.01	Certification of Principal Executive Officer pursuant to Rule 13a-14(a)/15d-14(a) as adopted pursuant to §302 of the Sarbanes-Oxley Act of 2002.	Filed herewith.
31.02	Certification of Principal Financial Officer pursuant to Rule 13a-14(a)/15d-14(a) as adopted pursuant to §302 of the Sarbanes-Oxley Act of 2002.	Filed herewith.
32.01	Certification pursuant to 18 U.S.C. §1350 as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002.	Furnished herewith.

Page-101

EX-14.02

Exhibit 14.02

Bank of Marin Bancorp and Bank of Marin

CODE OF ETHICAL CONDUCT

Adopted by the Board of Directors 6/20/2008

Reviewed for Update

on June 17, 2016

1

2

BANK OF MARIN BANCORP AND BANK OF MARIN

CODE OF ETHICAL CONDUCT

Adopted by the Board of Directors 6/20/2008

Reviewed for Update

on June 17, 2016

Table of Contents

Introduction4

Personal Conduct5

Conflict of Interest6

Self-Dealing/Handling Personal Transactions/Loans7

Gifts/The Bank Bribery Act8

Bequests or Legacies9

Fiduciary (Trust) Appointments9

Personal Financial Responsibility9

Employee Borrowings10

Personal Investments10

Securities Trading and Investment Guidelines11

Confidential Information11

Protecting Company Information12

Books and Records, Accounting Controls and Disclosures13

Use of the Company’s Name13

Suspicious Activity Reports13

Bank Examination Reports14

Disclosure of Corporate News and Information14

Information Regarding Past and Present Employees or Directors14

Fidelity Coverage14

Obeying Laws and Regulations15

Disclosure16

Dealing with Auditors, Examiners and Legal Counsel17

Money Laundering Activities/the Bank Secrecy Act/OFAC17

Anti-Competitive Activities18

Directors or Officers in Outside for Profit Companies18

Directors or Officers in Nonprofit Companies and Civic and Charitable Organizations19

Outside Employment19

Solicitation And Distribution Activities20

Advice To Customers20

Speeches and Articles for Publication21

Political Activities21

Reporting Procedures22

Disciplinary Action23

Changes Made to the Code of Ethical Conduct / Waiver24

3

Introduction

This Code of Ethical Conduct (“Code of Ethics”)applies to all employees, officers and directors (hereinafter an “employee” irrespective of whether or not an actual employment relationship exists) of Bank of Marin Bancorp and Bank of Marin (collectively the “Company”).

This Code of Ethics describes some of your responsibilities as an employee. It recognizes that personal conduct directly and indirectly reflects upon the reputation and successful business operation of the Company.

The following policies and guidelines are set forth to assist you in determining what is appropriate personal and professional conduct. The Code of Ethics does not encompass all of our expectations; you should also familiarize yourself with the Employee Handbook and other policies and procedures that are applicable to you. In general, the use of good judgment, coupled with high ethical standards, is your best guide. If you have any questions regarding this Code of Ethicsor the appropriateness of any action or arrangement, you should seek the advice of your department manager. For purposes of this Code, the term “department manager” means in the case of (i) an employee – such employee’s immediate supervisor, (ii) an officer – such officer’s immediate supervisor, (iii) an executive officer – the Chief Executive Officer, (iv) the Chief Executive Officer – the Chairman of the Board and (v) a director – the Chairman of the Board.

This Code of Ethics is required by the United States securities laws and the rules and regulations of the Securities and Exchange Commission (the “Commission”) as well as the listing standards of Nasdaq as being necessary to deter wrongdoing and to promote:

1. honest and ethical conduct, including the ethical handling of actual or apparent conflicts of interest between personal and professional relationships;

2. full, fair, accurate, timely, and understandable disclosure in reports and documents that a company files with, or submits to, the Commission and in other public communications made by the company;

3. compliance with applicable governmental laws, rules and regulations;

4. the prompt internal reporting of Code violations to an appropriate person or persons identified in the Code; and

5. accountability for adherence to the Code.

The policies, rules, standards and guidelines contained in this Code of Ethics do not establish enforceable employee rights, contractual or otherwise, and do not establish an employment relationship enforceable by employees. They are not promises to employees

4

and they are subject to change at any time without notice. Employees continue to be employed at will; the at will employment relationship shall continue unless changed in writing by the Chief Executive Officer of the Company.

Personal Conduct

1.     Trustworthiness/Personal Behavior and Appearance. You should always be mindful of the Company’s position and reputation in the community. Since the success of any banking operation depends on the public’s trust, it is extremely important that you conduct your personal affairs in such a way as to avoid discredit or embarrassment to either yourself or the Company. Your personal behavior and appearance should, likewise, be governed by both common sense and good taste. Employees are expected to provide complete and truthful information in dealing with Company employees.

2. Discrimination and Harassment. Discriminatory or harassing behavior may not only be illegal, but also precludes good customer, vendor and employee relations, all of which are essential to the success of the Company. Therefore, the Company’s policy prohibits discriminatory conduct or harassment with respect to Company customers, vendors, employees or the general public, based on race, color, creed, religion, gender, marital status, age, national origin or ancestry, physical or mental disability, medical condition including genetic characteristics, sexual orientation, veteran status, or any other consideration made unlawful by federal, state or local laws while conducting business for or representing the Company in any manner.

Harassment includes but is not limited to: making unsolicited or unwelcome written, verbal, physical and/or visual contact with sexual overtones; making reprisals or threats of reprisals or implied threats of reprisal following a negative response to a personal invitation you issued to another employee; engaging in implicit or explicit coercive sexual behavior to control, influence or affect the career, salary and/or work environment of another employee; or offering favors or employment benefits in exchange for sexual favors.

3.     Drugs and Alcohol. You may not use, possess or sell alcohol or drugs on Company property, nor work under the influence of such substances.

4.     Weapons. You may not bring a weapon of any kind onto Company property, including any property where a Company function is taking place. You may not use or threaten to use a weapon or physical violence against any employee, vendor or customer of the Company.

5

Conflict of Interest

You must avoid situations and transactions which create, or appear to create, a conflict of interest. A conflict of interest occurs when you engage in a personal activity or have a personal interest that conflicts with your duty to the Company or adversely affects your judgment in the performance of work responsibilities, or when you use your position with the Company or use the Company’s confidential information to benefit yourself rather than the Company. The Company strictly prohibits its employees from taking any action or entering into any relationship that creates, or even appears to create, a conflict of interest without the prior approval of the employee’s department manager. The Company’s President/Chief Executive Officer, Chief Financial Officer, or other executive officers must receive approval of the Board of Directors or a committee of the Board of Directors prior to taking any action or entering into any relationship that creates, or even appears to create, a conflict of interest. For purposes of determining whether a conflict exists, the actions of an employee’s immediate family members are treated as those of the employee and are therefore subject to the same considerations.

Conflicts can arise due to either personal or business relationships with customers, suppliers, business associates or competitors of the Company. For example, you should:

1. Not be a signer on any account over which you exercise control as a Company employee.

2. Not be a signer on any customer’s account, act as a co-tenant of a safe deposit box, or otherwise represent another customer in dealings with the Company, excluding accounts or boxes where the other customer is related to you by blood or marriage or where you act in official capacity as an officer of a non profit. You may not process your own transactions.

3. Not enter into any business relationship (e.g., partnerships, joint ventures, syndicates) with present or prospective customers or suppliers.

4. Unless prior approval of the Chief Credit Officer is obtained as well as any necessary Board approval under Regulation O, not extend credit to: (a) any customers, if the proceeds are to be given or loaned to you or used to pay a debt owed by you, or to benefit you, a family member or a close relative; (b) any customers, if the loan, in whole or in part, will enable them to purchase real or personal property from you, a family member or a close relative; (c) any company in which you have an interest as a director, officer, controlling person or partner, or in which a family member or close relative has such an interest; or (d) customers or vendors of the Company by way of loaning your own funds or personal credit by a guarantee or similar means.

5. Not make a loan to any public bank examiner who examines or has the authority to examine the Company.

6

It is important to recognize that the appearance of a conflict may be just as damaging to the Company’s reputation as a real conflict.

When faced with a situation involving a potential or actual conflict of interest you should immediately notify your department manager and the Human Resources Director in writing.

The Company maintains a separate Related Party Transactions Policy which applies to executive officers, directors, director nominees and certain others and is incorporated by reference in this Code of Ethics.

Self-Dealing/Handling Personal Transactions/Loans

You must not represent the Company in any transaction with a person or organization in which you or any of your family, relatives or close personal friends have a direct or indirect interest or from which any of you may derive a benefit.

You may not open accounts or receive incentive pay for transactions involving family members or relatives.

You may not handle a loan application or participate in any credit decision (including overdrafts) for yourself, or for any of your family members, relatives, close personal friends, or entities controlled by family members, relatives or close personal friends; instead you must refer the borrower to another loan officer in an equal or higher position to make, check on the progress of and/or handle the loan.

Employees are not allowed to process their own banking transactions, nor those of their family members or relatives, even if the employee has the other party’s authorization; such transactions must be referred to another employee or your manager to process.

Transactions that involve fee waivers, non-sufficient funds, overdraft fee reversals, overdrafts or similar matters for your accounts, or for those of family members, relatives or close personal friends, must be referred to your supervisor for processing and approval (even if you would otherwise be authorized to process the transaction or make such a decision). You may not make decisions, approve transactions, or influence others to approve transactions on such accounts.

If you are asked to process a transaction for another employee, be careful to ensure the transaction is appropriate and within your authority.

You must not accept business opportunities from persons doing business or seeking to do business with the Company if such opportunities are made available to you because of your position with the Company.

7

You must never use your position with the Company to influence public officials or others for your personal benefit. Likewise, your Company employment should not be used as leverage to gain favors from customers or suppliers.

Gifts/The Bank Bribery Act

Neither you nor members of your immediate family shall solicit or accept for yourselves or third parties (other than the Company) any gift, offer of travel, unusual hospitality or other thing of value (other than your salary, commissions or bonus from the Company) from any person or entity which either appears to be or is in connection with any business, service, confidential information or transaction of the Company, either before or after a transaction is discussed or consummated. Criminal penalties may be imposed for violating this prohibition.

The foregoing is not intended to preclude the receipt of unsolicited non-cash gifts of nominal value or customer hospitality from persons or entities doing business with the Company, when it is clear from the circumstances that no attempt is being made to influence you. A gift of nominal value is defined as being $100 or less during any twelve month period.

Possible exceptions to the general prohibition regarding the acceptance of things of value may include:

1. Acceptance of gifts, gratuities, amenities or favors based on family relationships (e.g., from a parent, child or spouse of a Company employee) where the circumstances make it clear that it is those relationships, rather than the business of the Company, which are the motivating factors.

2. Acceptance of meals, refreshments, travel arrangements, accommodations, or entertainment, all of reasonable value and in the regular course of a meeting or other occasion, the purpose of which is to hold bona fide business discussions, provided the expenses would be paid for by the Company as a reasonable business expense, if not paid for by another party.

3. Acceptance of loans from other banks or financial institutions on customary terms to finance proper and usual activities, such as home mortgage loans, except where prohibited by law.

4. Acceptance of civic, charitable, educational or religious organization awards for recognition of service in an amount of $100 or less during any twelve month period.

5. Acceptance of advertising or promotional material of nominal value, such as pens, pencils, note pads, key chains, calendars and similar items.

8

6. Acceptance of discounts or rebates on merchandise or services that are offered by a third party to the general public.

If you are offered or anticipate receiving a gift or other thing of value, which is not permitted under the above guidelines, you must report it immediately in writing to your department manager and the Human Resources Director.

If you are uncertain as to the propriety of a gift, you must seek the written approval of your department manager before accepting it. Your request should be in writing and should state all relevant facts. You must send a copy of the request and the approval to the Human Resources Director.

Bequests or Legacies

You and your immediate family must not accept bequests or legacies from customers of the Company (other than a family member, relative or close personal friend, or a person who has never dealt with you as a representative of the Company) under a will or trust without the advance written consent of your department manager. If you find that you are named as a beneficiary in a will or trust not involving a family member, relative or close personal relationship, or you first learn of the fact after the death of a grantor who was a customer, you should immediately notify your department manager.

Fiduciary (Trust) Appointments

You may not accept any appointment as an executor, administrator, guardian, trustee or any similar fiduciary capacity without the prior written approval of your department manager. Notice of such appointment shall be sent to the Human Resources Department. This does not, however, apply to appointments made by family members, relatives or close personal friends, provided the duties required will not interfere with the proper performance of your duties to the Company.

Personal Financial Responsibility

Company employees are expected to demonstrate an ability to manage personal finances properly, particularly the intelligent use of credit. Imprudent personal financial management can affect job performance and reflects poorly on your ability to perform responsibilities of a financial nature.

Acting as an accommodation co-signer or guarantor for others can be a risky practice and often results in the accommodation co-signer or guarantor having to pay the obligation. As such, you should not assume co-signer or guarantor responsibilities unless you are in a position to pay the entire obligation upon demand.

9

Employee Borrowings

You may not borrow money from customers, vendors or suppliers (including personal friends) of the Company, unless the lender is a recognized lending institution. The term “borrow” does not include a loan from a family member or purchase from a customer or supplier resulting in an extension of credit in the normal course of business.

Federal law imposes certain restrictions on loans by the Company to its executive officers, directors, principal shareholders and their related interests. Questions regarding such loans should be directed to the Chief Credit Officer.

Personal Investments

Company employees, by the very nature of their positions, must be particularly circumspect regarding investments which may appear improper to customers, supervisory authorities or the public. You should consult with the Human Resources Director if you have or are considering any investments of questionable propriety.

You should avoid entering into transactions where it may appear that you are benefiting improperly from your relationship with the Company or violating your fiduciary responsibilities. This applies to investments by members of your immediate family, as well.

While a complete list of such matters cannot be given, you must refrain from directly or indirectly owning or purchasing any of the following:

1.     Real or personal property in which the Company has or intends to obtain an ownership interest (e.g., through purchase, foreclosure or repossession, or in a fiduciary capacity). This does not include any sale of the Company’s valet automobiles or surplus personal property offered through a third party to the general public, as long as the sale is in accordance with the Company’s established policies. Note: Although employees may purchase such property if it is offered through a third party to the general public, it is against Company policy for executive officers (as defined by Regulation “O”) to do so.

2.     Stocks, bonds or other securities (a) pledged to the Company as collateral, (b) sold by the Company in a fiduciary capacity, or (c) issued by any entity indebted to the Company, except for securities, which are publicly traded.

3.     Stock of any business or financial institution in anticipation of its merger with or acquisition by the Company. Investment in stock of any financial institution, even though made in good faith and without prior inside knowledge, should be given careful consideration because of the possible adverse publicity to the Company in the event of a subsequent merger with, or acquisition by the Company.

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4.     Trust deeds, mortgages or chattel mortgages that are a lien against property in which the Company has a security interest.

5.     An interest in any company which is a customer, vendor or supplier of the Company. This limitation does not apply to non-officer directors or the ownership or purchase of less than 5 percent of the outstanding stock of any company whose securities are listed on a national securities exchange.

6.     An interest in a company for which you are the account officer or in which you have access to information which is not generally available to the public.

7.     If you deal with securities firms in purchasing or selling securities for the Company or its customers, you may not accept preferential treatment from those firms in your personal dealings with them. Any appearance of a conflict of interest must scrupulously be avoided.

Securities Trading and Investment Guidelines

The Company maintains a separate Insider Trading Policy which is incorporated by reference in this Code of Ethics. Employees should consult and must adhere to the Insider Trading Policy anytime an employee engages in a transaction involving Bank of Marin Bancorp common stock, or other form of security.

Confidential Information

During the course of your work, you may hear or have access to confidential information about the Company or about present and prospective customers, suppliers, shareholders and other staff members. Such information must be held in the strictest of confidence and it is to be used solely for corporate purposes and never for personal gain. Under no circumstances should such information be transmitted to persons outside the Company, includingyourfamily or associates, or to other employees of the Company unless they have a need to know such information to discharge their duties. In general, the only exceptions to this policy would be routine credit inquiries, information released in the normal course of business (e.g., for the negotiation of checks), disclosures required by law or regulation, legal process and information authorized for release by customers.

If you are authorized to reveal confidential information to another, you must specifically designate such information as confidential. For example, if you provide material nonpublic information to accountants or other consultants who have been retained to assist in an acquisition, you must make it clear such information is confidential in order to avoid “tipper” liability under the securities laws. Before revealing confidential information to outsiders, you should ascertain whether outside law firms, rating services, investment banks, accountants and other outside consultants to whom confidential information may be given have confidential or “inside information” compliance

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procedures in place to guard against any misuse of such information by members of such firms.

You must keep all files, records, or inquiries regarding customers and employees and other records that contain confidential information in a secure place. Do not leave documents of a confidential nature lying on your desk or work area when you are not using them.

If particularly sensitive information is involved, additional precautions should be taken. If possible, avoid using file names which might disclose confidential information. Confidential files and word processing disks or tapes should be kept in a locked cabinet or other secure place.

When transporting confidential documents, keep them in sealed envelopes or folders marked as “confidential.” Any envelopes or folders marked as “confidential” or “personal” should only be opened by the addressee.

If you find it necessary to carry sensitive information off premises, due care should be taken to protect its security. Care also should be taken not to discuss any matter of a confidential nature on cellular or digital phones, on car phones, on elevators or other public conveyances, in restrooms, restaurants or other public places where the conversation might be overheard. You must be sensitive to whether information is confidential when using E-mail, voicemail or facsimile machines, or the Internet.

You must keep all identification and access codes, security equipment, security programs and security procedures confidential.

You must not disclose confidential information, whether it is in a written form or in your memory, even after you leave your employment or position with the Company.

You must comply with all other Company policies and procedures relating to confidentiality, including those that have been adopted for your line of business or department.

Protecting Company Information

All Company information must be protected against unauthorized access, modification, destruction, disclosure or release to unauthorized parties. Employees must follow applicable policies and procedures and safeguard information in whatever form it exists (e.g., electronic or hard copy).Deliberate or willful violations of existing policies for protecting Company information or negligent failure to protect Company information properly may result in disciplinary action, including termination.

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Books and Records, Accounting Controls and Disclosures

The Company requires that all its books and records be maintained accurately and with honesty. This requires that no fund, asset, liability, revenue or expense be concealed or incompletely recorded for any purpose. Employees must closely adhere to the following accounting guidelines:

1. All assets, liabilities and transactions of the Company should be accurately recorded in accordance with the Company’s record keeping procedures and generally accepted accounting principles;

2. No false or misleading entries are permitted to be knowingly made or caused to be made in the Company’s record books, even if such entries would not be material to the Company or its operations as a whole;

3. Any entries that are inaccurate should be reported to mangament. False or irregular entries should be promptly reported to a member of the Audit Committee for an immediate corrective action; and

4. All entries must be supported by documentation adequate to permit the books and records to be verified by audit.

Proper accounting requires not only careful compliance by the Company’s accountants, but also the cooperation of all employees who are involved in keeping financial records of any type.

For further details on the requirements of employees dealing with maintenance of the Company’s financial records, please refer to Sections 302 and 303 of Sarbanes-Oxley Act of 2002.

Use of the Company’s Name

Good judgment should be exercised at all times to avoid the use of the Company’s name or its logo in any manner which may imply the Company’s endorsement of any outside activity or product. Requests for Company endorsement and/or use of the Company name/logo require approval from the Marketing Department.

Suspicious Activity Reports

It is unlawful to disclose to a customer or other person who is the subject of a suspicious activity report the contents or existence of a Suspicious Activity Report. You may, however, discuss a SAR with other Company employees who have a need to know, Company’s counsel and law enforcement officials, as appropriate.

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Bank Examination Reports

Periodically, various regulatory agencies examine the Company. The reports generated as a result of the examination usually remain the property of the issuing agency and are considered strictly confidential. Employees are prohibited from disclosing any information contained in or related to such examination reports. These prohibitions may extend to subpoenas. If a subpoena requests such information, consult with the Company’s Chief Financial Officer.

Disclosure of Corporate News and Information

Financial information about the Company is not to be released to anyone unless it has previously been included in a published report or otherwise made generally available to the public. Any questions concerning the disclosure of confidential information should be referred to the Chief Financial Officer.

All media inquiries regarding the Company should be referred to the Chief Executive Officer or the Chief Financial Officer. The following subjects are never to be discussed with the media or in any other public forum:

1.     Confidential business matters which could be of interest to competitors.

2.     Information about a customer and the customer’s dealings with the Company.

Information Regarding Past and Present Employees or Directors

The policy of the Company is to safeguard the confidential aspects of its relationship with its employees and directors; to satisfy all requirements of applicable labor laws; and to maintain uniformity in replies to inquiries concerning past and present employees. In order to assure that this policy is consistently maintained, any request for information regarding past or present employees or directors must be referred to the Human Resources Department. This includes inquiries relating to employment, salary verification and performance evaluation.

The above procedures apply to all requests, whether written or oral, regarding Company employment. They do not apply, however, to routine credit inquiries from legitimate businesses regarding deposit or loan information or to those instances in which the Company appears to be a victim of a crime or for other legitimate business reasons. Credit inquiries may be answered in the normal course of business by the banking office where the employee’s accounts or loans are carried.

Fidelity Coverage

Every employee must be covered by the Company’s fidelity bond. The Company will not continue to employ anyone who ceases to be eligible for coverage.

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Obeying Laws and Regulations

The Company and its employees may be subject to penalties if they violate any laws or regulations. It is therefore important that you be familiar with the laws and regulations governing the line of business in which you work and that you be careful to ensure that you fully comply with them. Compliance with laws and regulations is every employee’s responsibility. Employees who commit illegal acts could be subject to disciplinary action which may include termination.

You must report all instances of known or suspected illegal activities or other suspicious activities on the part of any employee, agent, customer or potential customer of the Company. If you are uncertain as to the propriety of an individual’s actions, call the Security and/or Compliance Officers to obtain clarification. You must promptly notify the Security and/or Compliance Officers if you believe an employee, agent, customer or potential customer has committed or tried to commit an illegal act or if you discover any circumstances which suggest that a crime has been committed. Failure to report suspected illegal activities properly may subject you to disciplinary action, including, if appropriate, termination. The Company is required by law to report violations or suspected violations of criminal laws to federal and/or state law enforcement agencies. As noted above, it is a crime to disclose the contents or existence of a suspicious activity report to anyone other than Company employees or the Company’s legal counsel to the extent that such persons are involved in preparing or submitting the report. Please see the section below titled “Reporting Procedures” for additional detail on the process for reporting violations.

Dishonest and fraudulent acts by Company employees are crimes under federal and state law, and may be punishable by fines and/or imprisonment. Examples of activities prohibited by law include:

1. Accepting anything of value (except an employee’s salary or other compensation paid or sanctioned by the Company) in connection with Company business (See “Gifts/the Bank Bribery Act” page 6);

2. Willfully making any false or untrue entry or willful omission in any book or record of the Company;

3.     Stealing, embezzling or misapplying corporate funds or assets;

4. Willfully making any statement or rumor which is derogatory and untrue regarding the financial condition of any bank doing business in California;

5. Intentionally failing to make Currency Transaction Reports or other reports required under the Bank Secrecy Act (collectively referred to as “CTRs”), or

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assisting in the structuring of a transaction to avoid the filing of a CTR, as required by law;

6.     Using threats, physical force or other unauthorized means to collect money;

7. Issuing unauthorized obligations (such as certificates of deposit, notes or mortgages);

8.     Certifying a check drawn on an account with insufficient funds;

9. Unless specifically permitted by law, making a loan or giving a gift to a regulator who has the authority to examine any Company affiliate;

10.     Using a computer to gain unauthorized access to the records of a customer;

11.     Concealing or misapplying any of the Company’s assets; and

12. Loaning funds to, or depositing funds with third parties with the understanding, express or implied, that the party receiving such funds will make a loan or pay any consideration to you.

Disclosure

It is the Company’s policy and intent to issue full, clear, accurate, timely and understandable reports to the public and regulatory authorities. Each director, officer or employee involved in the Company’s disclosure process, including the Chief Executive Officer, the Chief Financial Officer and the Chief Accounting Officer (sometimes referred to as the “senior financial officers”), is required to be familiar with and comply with the Company’s disclosure controls and procedures and internal control over financial reporting, to the extent relevant to his or her area of responsibility, so that the Company’s public reports and documents filed with the SEC comply in all material respects with the applicable federal securities laws and SEC rules. In addition, each such person having direct or supervisory authority regarding these SEC filings or the Company’s other public communications concerning its general business, results, financial condition, or prospects should, to the extent appropriate within his or her area of responsibility, consult with other Company officers and employees and take appropriate steps regarding these disclosures with the goal of making full, fair, accurate, timely and understandable disclosure. To that end, each director, officer or employee who is involved in the Company’s disclosure process, including without limitation the senior financial officers, must:

• Familiarize himself or herself with the disclosure requirements applicable to the Company as well as the business and financial operations of the Company, to the extent relevant to his/her responsibilities.

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• Not knowingly misrepresent, or cause others to misrepresent, facts about the Company to others, whether within or outside the Company, including to the Company’s independent auditors, governmental regulators and self-regulatory organizations.

• Properly review and critically analyze proposed disclosure for accuracy and completeness (or, where appropriate, delegate this task to others.)

• Take appropriate steps, including consulting with other Company officers and employees, to assure that reports and disclosures they issue comply with the spirit as well as the actual federal law and SEC regulations regarding full and accurate disclosures.

Dealing with Auditors, Examiners and Legal Counsel

All employees, officers and directors are required to respond honestly and with candor when dealing with the Company’s independent and internal auditors, regulators and attorneys.

Money Laundering Activities/the Bank Secrecy Act/OFAC

Both federal and state law prohibit the laundering of money or aiding and abetting the laundering or attempted laundering of money or avoidance of any Bank Secrecy Act reporting requirement.

Money is laundered to hide the criminal activity associated with it, including the crimes by which it is generated, e.g., drug trafficking, tax avoidance, counterfeiting, etc. Employees need to “know their customer,” and be alert to the dangers to the Company should it, even unwittingly, become involved in receiving or laundering proceeds of crimes.

Financial institutions and their affiliates are required to report any known or suspected laundering of money or the structuring of transactions to avoid Bank Secrecy Act reporting requirements. Employees must contact the Security and/or Compliance Officers immediately in the event any known or suspected criminal activity or transaction, or other suspicious or unusual activity, comes to their attention.

Federal law also prohibits the processing of any transactions involving a person, business, or government agency who is named on the Office of Foreign Assets Control’s Specially Designated Nationals list (“SDN”) or who is otherwise the subject of economic sanctions by the U.S. government. Employees are to immediately report any transaction, loan application, letter of credit application, or other bank account, service or document which may involve or make reference to an SDN to the Security and/or Compliance Officers.

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Anti-Competitive Activities

Federal law prohibits any combination, conspiracy or agreement among competitors to restrict or prevent competition. A violation of the law can occur through a formal or informal agreement between the Company and a competitor to (1) fix prices; (2) allocate markets; or (3) refuse to deal with particular suppliers or customers.

If you are in contact with the Company’s competitors, you must avoid any agreements with them (or even circumstances that might give the appearance of such agreements) relating to how the Company conducts or will conduct its business. You should be especially careful at social or professional gatherings and at trade association meetings. Discussions or exchanges of information relating to competitive matters (e.g., cost, pricing or strategy) must carefully be avoided.

In addition, federal law specifies that banks in general may not extend credit, lease or sell property of any kind, or furnish any service, on the condition that the customer: (1) obtain additional credit, property or service from the Company; (2) provide some additional credit, property or service to the Company; or (3) refrain from obtaining some other credit, property or service from a competitor of the Company. Employees may, however, cross-sell the Company’s products, and ask for our customer’s business.

Questions concerning anti-competitive issues should be directed to the Human Resources Director or the Chief Financial Officer.

Directors or Officers in Outside for Profit Companies

Employees, other than directors, may not serve as an officer, director, advisory director or on any committee of an outside for profit business organization without the prior written approval of the Chief Executive Officer. Directors who serve in such capacities must disclose those relationships yearly as required by Item 401 (e) (2) of Regulation S-K of the Securities Act of 1933. Employees serving in such capacities at the request of the Company are covered to a limited extent by the Company’s Director and Officer Liability Insurance policy. Any employee considering such service should confirm adequate liability insurance is maintained by the business organization for the employee’s protection and/or that the organization has taken appropriate action to indemnify its officers and directors to the extent permitted by law.

The foregoing does not apply to any fiduciary account where the Company finds it necessary or helpful for you to be appointed as an officer or director of an outside organization (e.g., where the Company holds or controls a substantial interest in the company because of its responsibilities). Such appointments may, under certain circumstances, require the approval of the Board of Directors.

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Directors or Officers in Nonprofit Companies and Civic and Charitable Organizations

The Company recognizes the benefits of active participation by employees in nonprofit organizations, such as the Red Cross, United Way and community organizations. Appointments as a trustee, director or officer of a nonprofit religious, charitable or health and welfare organization are recognized as worthwhile community involvement. However, if you are considering an appointment as trustee, director or officer of a health and welfare organization (including but not limited to convalescent homes, hospitals or health maintenance organizations), you must obtain the prior written consent of the Chief Executive Officer. If you have been specifically asked by the Company to serve as a trustee, director or officer of a nonprofit organization, prior to serving you must notify the Company’s Chief Executive Officer in writing that you intend to serve as requested. Directors who serve in such capacities must disclose those relationships yearly in conjunction with the annual filing of the Company’s proxy statement. Employees serving in such capacities at the request of the Company are covered to a limited extent by the Company’s Director and Officer Liability Insurance policy.

Outside Employment

You are expected to devote full-time attention and energy to your career with the Company. The Company’s policy requires that you obtain the prior written consent of your department manager and the Human Resources Director prior to accepting any outside employment which would require a significant amount of your time.

You must avoid outside employment which involves or may appear to involve a conflict of interest. Examples include:

1. Employment by a company or personally engaging in any activity that is competitive with the Company.

2. Employment which involves the use of the Company’s equipment, supplies or facilities.

3. Employment which involves the preparation, audit or certification of statements, tax returns or other documents upon which the Company may place reliance for lending or other purposes. If you prepare income tax returns for individuals or entities other than yourself, you must obtain confirmation from your potential client that the client does not intend to use your work product as part of any transaction with the Company.

4. Employment which involves the rendering of investment, legal or other advice, or exercising judgment which is based upon information, reports or analyses that are accessible primarily from or through your employment with the Company.

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5. Employment under circumstances which may suggest the sponsorship or support of the Company on behalf of the outside employer or an outside organization.

6.     Employment as an insurance or securities broker, agent or representative.

7. Employment as a real estate salesperson, broker, agent or contractor (except with the prior written approval of the Human Resources Director). Prior written approval is required since there are a number of potential conflict of interest situations, as well as possible violations of banking laws, which must scrupulously be avoided in this area).

Solicitation And Distribution Activities

In order to minimize work interruptions and to maintain a businesslike environment, the Company restricts solicitation and distribution activities on its property. Unless officially sanctioned by the Company and approved by an executive officer of the Company, you may not permit: (1) the display of any advertisement or promotion, or the sale of any goods or services by others on Company property; and (2) nonemployees to solicit contributions or place literature on Company property.

You may not solicit contributions from other employees on your or their work time in work areas without prior approval of the department manager for fundraiser items (e.g., Girl Scout Cookies, school fund raising projects, etc.). Distribution of literature in work areas is also prohibited unless it is in the normal course of Company business (e.g., IRS forms, Company forms and Federal Reserve pamphlets).

Advice To Customers

A.     Legal Advice

You may occasionally be asked by customers to make statements which relate to the legality of particular transactions. Neither the Company nor its employees are authorized to practice law for or provide legal advice to customers. As such, you must exercise care in your discussions with customers. Nothing must be said which might be interpreted as the giving of legal advice.

B.     Tax or Investment Advice

You must avoid giving customers advice on tax matters, the preparation of tax returns, or investment decisions, except as may be appropriate in the performance of a fiduciary responsibility, or as otherwise required in the ordinary course of your duties.

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C.     Recommending Other Firms To Customers

During the course of your contact with customers and the general public, you may occasionally be asked to recommend others who provide professional services. Typically, such requests involve attorneys, accountants, securities dealers, insurance agents, brokers and real estate agents. Customers who receive recommendations must be given several qualified sources, without indicating any preference or warranty by the Company, excluding only referral arrangements made by the Company.

Speeches and Articles for Publication

You may not speak on behalf of the Company or discuss the Company’s policies or procedures in articles, speeches or presentations without the prior written consent of the Chief Executive Officer. Although you are encouraged to prepare articles and make presentations in your individual capacity, you must avoid any appearance that you represent the Company with respect to such articles or presentations.

You may not use official Company stationery for personal correspondence or other non-work related purposes.

Neither you nor members of your immediate family may solicit honoraria for public speaking or writing services performed on behalf of the Company or by reason of the fact that you are an employee of the Company. You may not accept honoraria worth more than a nominal amount ($100) without the prior approval of the Human Resources Director. However, you may accept reimbursement of related expenses.

Political Activities

The Company believes that it is important for every citizen to take an active interest in political and governmental affairs. You are encouraged to keep yourself well informed concerning political issues and candidates and, to the degree practicable, take an active role in fostering better government. You should make it clear at all times, however, that your participation in political activities is done as a private citizen and not as a representative of the Company.

For legal and other reasons, your political activities must not be conducted during work hours and must not involve the use of the Company equipment, supplies or facilities. You may not make any political contributions (in the form of cash, goods or services) directly or indirectly (e.g., through reimbursement) on behalf of the Company.

If you run for political office or are considering a prominent role in a campaign or ballot measure, you are encouraged to consider the Company’s position.

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If the amount of time required by your political activities is significant and may have an adverse effect on your overall performance, prior notice and approval by the Human Resources Director is required. If you become involved in political activities, you should also seek competent legal advice concerning the laws governing campaign financing and practices.

Under no circumstances may you make any payment to any government official or other person or organization which might in any way be construed to be improper, illegal, a bribe, a kickback, etc. If any transaction with a government official or other person or organization seems even remotely questionable, it must be referred to the Chief Financial Officer for a determination as to its propriety.

Although it is the Company’s policy not to endorse individual candidates in an election, you are free to express your own opinions, as long as it is clear that they are your own personal opinions. You may not write supportive letters for candidates or issues on Company stationery or act in any way which suggests the Company’s support of or opposition to a candidate or issue. When the Company deems it appropriate to take a public position on issues, it will designate specific individuals to speak on its behalf.

The roles of treasurer and assistant treasurer in political campaigns can present unusual problems because of the complex nature of the laws governing campaign contributions. A potential conflict of interest can also arise because of an employee’s access to insider information and customer lists. Accordingly, you should normally decline to accept such positions if there is any potential for a conflict of interest (or any appearance of a conflict). You must never use customer lists or exploit your business relationship with customers for the benefit of any campaign.

Reporting Procedures

All employees have a duty to report any violations of this Code, as well as violations of any laws, rules, or regulations. Employees also have a duty to report any transaction or relationship that could reasonably be expected to give rise to a conflict of interest.

If you are aware of a potential conflict of interest or believe that the Code has been violated by an employee you must promptly report the violation to his or her direct supervisor, the Human Resources Director or such other personnel listed in this Code. If a report is made to a person other than the Human Resources Director, such person must in turn report the violation to the Human Resources Director. All violations by an officer or director of the Company must be reported directly to the Human Resources Director. Employees may also choose to report any violations regarding record keeping or financial reporting to the Audit Committee of the Board of Directors.

Reports may be made in person, by telephone, or in writing by sending a description of the violation and the names of the parties involved to the appropriate personnel mentioned in the preceding paragraph or to the personnel listed in this Code. Reports to

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the Human Resources Director may be sent to the following address: 504 Redwood Blvd., Suite 100, Novato CA 94947. Reports to the Audit Committee may be sent to the following address: 504 Redwood Blvd., Suite 100, Novato CA 94947. Additional reporting information is available on the Company’s intranet site under the whistleblower section. The Company maintains a separate Whistleblower Policy which is available on the Company’s intranet site and is incorporated by reference in this Code of Ethics.

When reporting a violation, you may choose to remain anonymous. However, if you make an anonymous report, you should create and preserve your own record of this report in order to be able to demonstrate your compliance with the requirement of reporting violations. Generally speaking, every effort will be made to maintain the confidentiality of reports of potential violations. However, there may be a point where the identity of the reporting employee may become known or may have to be revealed in the course of the investigation or to take corrective action.

The Company does not permit retaliation of any kind against employees for good faith reports of ethical violations. Any employee who attempts to or encourages others to retaliate against an individual who has reported a violation will be subject to disciplinary action.

Disciplinary Action

The Company has implemented the following disciplinary policies to ensure that prompt and consistent actions are taken in response to Code violations:

A.    Range of Penalties

All violations of this Code will be treated seriously and will result in the prompt imposition of penalties which may include (1) an oral or written warning, (2) a reprimand, (3) suspension, (4) termination and/or (5) restitution. Violations will also be reported to the appropriate regulatory agencies or other authorities.

B.    Disciplinary Process

The penalty for a particular violation of this Code will be decided on a case-by-case basis and will depend on the nature and severity of the violation as well as the employee’s history of non-compliance and cooperation in the disciplinary process. Significant penalties will be imposed for violations resulting from intentional or reckless behavior. Penalties may also be imposed when an employee fails to report a violation due to the employee’s indifference, deliberate ignorance or reckless conduct. Where there is credible evidence of a violation, the Human Resources Director will determine the appropriate sanction with the assistance of appropriate members of Executive Management.

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C.    Consistent Enforcement

All employees, officers and directors will be treated equally with respect to the imposition of disciplinary measures. Pursuant to this policy, all levels of employees will be subject to the same disciplinary action for the commission of a similar offense.

Changes Made to the Code of Ethical Conduct / Waiver

Any change in the Company’s Code of Ethics must be approved by the Company’s board of directors and disclosed as required by SEC and Nasdaq rules. From time to time the Company may waive some provisions of this Code. Any waiver of the Code for executive officers or directors of the Company may be made only by the Board of Directors and must be disclosed as required by SEC or Nasdaq rules. Any waiver for other employees may be made only by Director of Human Resources.

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EX-23.01

EXHIBIT 23.01

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statements No. 333-144807, No. 333-144808, No. 333-144809, No. 333-144810, and No. 333-167639 on Form S-8 of our report dated March 13, 2017, relating to the consolidated financial statements and the effectiveness of internal control over financial reporting, appearing in this Annual Report on Form 10-K, of Bank of Marin Bancorp for the year ended December 31, 2016.

/s/ Moss Adams LLP

San Francisco, California

March 13, 2017

EX-31.01

EXHIBIT 31.01

Certification of Principal Executive Officer pursuant to Rule 13a-14(a)/15d-14(a) as adopted pursuant to §302 of the Sarbanes-Oxley Act of 2002

I, Russell A. Colombo, certify that:

1. I have reviewed this annual report on Form 10-K of Bank of Marin Bancorp (the Registrant);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this report;

4. The Registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a -15(f) and 15d-15(f)) for the Registrant and have:

(a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiary, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) evaluated the effectiveness of the Registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures as of the end of the period covered by this report based on such evaluation; and

(d) disclosed in this report any change in the Registrant's internal control over financial reporting that occurred during the Registrant's most recent fiscal quarter (the Registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant's internal control over financial reporting; and

5. The Registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant's auditors and the audit committee of Registrant's Board of Directors (or persons performing the equivalent functions):

(a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting, which are reasonably likely to adversely affect the Registrant's ability to record, process, summarize and report financial information; and

(b) any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant's internal controls over financial reporting.

March 13, 2017	/s/ Russell A. Colombo
Date	Russell A. Colombo
	Chief Executive Officer

EX-31.02

EXHIBIT 31.02

Certification of Principal Financial Officer pursuant to Rule 13a-14(a)/15d-14(a)as adopted pursuant to §302 of the Sarbanes-Oxley Act of 2002

I, Tani Girton, certify that:

1. I have reviewed this annual report on Form 10-K of Bank of Marin Bancorp (the Registrant);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this report;

4. The Registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Registrant and have:

(a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiary, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) evaluated the effectiveness of the Registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures as of the end of the period covered by this report based on such evaluation; and

(d) disclosed in this report any change in the Registrant's internal control over financial reporting that occurred during the Registrant's most recent fiscal quarter (the Registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant's internal control over financial reporting; and

5. The Registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant's auditors and the audit committee of Registrant's Board of Directors (or persons performing the equivalent functions):

(a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting, which are reasonably likely to adversely affect the Registrant's ability to record, process, summarize and report financial information; and

(b) any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant's internal controls over financial reporting.

March 13, 2017	/s/ Tani Girton
Date	Tani Girton
	Chief Financial Officer

EX-32.01

EXHIBIT 32.01

Certification pursuant to 18 U.S.C. §1350 as adopted pursuant to §906

of the Sarbanes-Oxley Act of 2002

In connection with the annual report on Form 10-K of Bank of Marin Bancorp (the Registrant) for the year ended December 31, 2016, as filed with the Securities and Exchange Commission, the undersigned hereby certify pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that:

1) such Form 10-K fully complies with the requirements of Section 13(a) or 15(d)

of the Securities Exchange Act of 1934; and

2) the information contained in such Form 10-K fairly presents, in all material

respects, the financial condition and results of operations of the Registrant.

March 13, 2017	/s/ Russell A. Colombo
Date	Russell A. Colombo
	President &
	Chief Executive Officer

March 13, 2017	/s/ Tani Girton
Date	Tani Girton
	Executive Vice President &
	Chief Financial Officer

This certification accompanies each report pursuant to §906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the Registrant for purposes of §18 of the Securities Exchange Act of 1934, as amended.

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Document And Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Feb. 28, 2017	Jun. 30, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	Bank of Marin Bancorp
Entity Central Index Key	0001403475
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float			$ 292
Entity Common Stock, Shares Outstanding		6,129,817
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2016

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CONSOLIDATED STATEMENTS OF CONDITION - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Assets
Cash and due from banks	$ 48,804	$ 26,343
Investment securities
Held-to-maturity, at amortized cost	44,438	69,637
Available-for-sale, at fair value	372,580	417,787
Total investment securities	417,018	487,424
Loans, net of allowance for loan losses of $15,442 and $14,999 at December 31, 2016 and 2015, respectively	1,471,174	1,436,229
Bank premises and equipment, net	8,520	9,305
Goodwill	6,436	6,436
Core deposit intangible	2,580	3,113
Interest receivable and other assets	68,961	62,284
Total assets	2,023,493	2,031,134
Deposits
Non-interest bearing	817,031	770,087
Interest bearing
Transaction accounts	100,723	114,277
Savings accounts	163,516	141,316
Money market accounts	539,967	541,089
Time accounts	151,463	161,457
Total deposits	1,772,700	1,728,226
Federal Home Loan Bank (FHLB) borrowings	0	67,000
Subordinated debentures	5,586	5,395
Interest payable and other liabilities	14,644	16,040
Total liabilities	1,792,930	1,816,661
Stockholders' Equity
Preferred stock, no par value, Authorized - 5,000,000 shares, none issued	0	0
Common stock, no par value, Authorized - 15,000,000 shares; Issued and outstanding - 6,127,314 and 6,068,543 at December 31, 2016 and 2015, respectively	87,392	84,727
Retained earnings	146,464	129,553
Accumulated other comprehensive (loss) income, net	(3,293)	193
Total stockholders' equity	230,563	214,473
Total liabilities and stockholders' equity	$ 2,023,493	$ 2,031,134

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CONSOLIDATED STATEMENTS OF CONDITION (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Investment Securities
Loans, allowance for loan losses	$ 15,442	$ 14,999
Stockholders' Equity
Preferred stock, no par value (in dollars per share)	$ 0	$ 0
Preferred stock, authorized (in shares)	5,000,000	5,000,000
Preferred stock, issued, (in shares)	0	0
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	15,000,000	15,000,000
Common stock, issued (in shares)	6,127,314	6,068,543
Common stock, outstanding (in shares)	6,127,314	6,068,543

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest income
Interest and fees on loans	$ 67,472	$ 61,754	$ 64,823
Interest on investment securities
Securities of U.S. government agencies	5,155	4,709	4,502
Obligations of state and political subdivisions	2,339	2,155	2,273
Corporate debt securities and other	256	685	1,031
Interest on federal funds sold and due from banks	208	135	161
Total interest income	75,430	69,438	72,790
Interest expense
Interest on interest-bearing transaction accounts	109	115	99
Interest on savings accounts	58	51	46
Interest on money market accounts	445	495	550
Interest on time accounts	743	853	917
Interest on FHLB and overnight borrowings	478	317	315
Interest on subordinated debentures	436	420	422
Total interest expense	2,269	2,251	2,349
Net interest income	73,161	67,187	70,441
(Reversal of) provision for loan losses	(1,850)	500	750
Net interest income after provision for loan losses	75,011	66,687	69,691
Non-interest income
Service charges on deposit accounts	1,789	1,979	2,167
Wealth Management and Trust Services	2,090	2,391	2,309
Debit card interchange fees	1,503	1,445	1,378
Merchant interchange fees	449	545	803
Earnings on bank-owned life Insurance	844	814	841
Dividends on FHLB stock	1,153	1,003	563
Gains on investment securities, net	425	79	80
Other income	908	937	900
Total non-interest income	9,161	9,193	9,041
Non-interest expense
Salaries and related benefits	26,663	25,764	25,005
Occupancy and equipment	5,081	5,498	5,470
Depreciation and amortization	1,822	1,968	1,585
Federal Deposit Insurance Corporation insurance	825	997	1,032
Data processing	3,625	3,318	3,665
Professional services	2,044	2,121	2,230
Directors' expense	553	826	628
Information technology	862	736	675
Provision for (reversal of) losses on off-balance sheet commitments	150	(263)	334
Other expense	6,067	5,984	6,639
Total non-interest expense	47,692	46,949	47,263
Income before provision for income taxes	36,480	28,931	31,469
Provision for income taxes	13,346	10,490	11,698
Net income	$ 23,134	$ 18,441	$ 19,771
Net income per common share:
Basic (in dollars per share)	$ 3.81	$ 3.09	$ 3.35
Diluted (in dollars per share)	$ 3.78	$ 3.04	$ 3.29
Weighted average shares:
Basic (in shares)	6,073	5,966	5,893
Diluted (in shares)	6,115	6,065	6,006
Dividends declared per common share (in dollars per share)	$ 1.02	$ 0.90	$ 0.80
Comprehensive income:
Net income	$ 23,134	$ 18,441	$ 19,771
Other comprehensive income
Change in net unrealized gain or loss on available-for-sale securities	(5,658)	(1,420)	2,939
Reclassification adjustment for (gains) losses on available-for-sale securities included in net income	(394)	(6)	24
Net change in unrealized gain or loss on available-for-sale securities, before tax	(6,052)	(1,426)	2,963
Deferred tax (benefit) expense	(2,566)	(531)	1,203
Other comprehensive (loss) income, net of tax	(3,486)	(895)	1,760
Comprehensive income	$ 19,648	$ 17,546	$ 21,531

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CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss), Net of Taxes
Balance (in shares) at Dec. 31, 2013		5,877,524
Balance at Dec. 31, 2013	$ 180,887	$ 80,095	$ 101,464	$ (672)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	19,771		19,771
Other comprehensive income (loss)	$ 1,760			1,760
Stock options exercised (in shares)	49,415	49,415
Stock options exercised	$ 1,452	$ 1,452
Excess tax benefit - stock-based compensation	172	$ 172
Stock issued under employee stock purchase plan (in shares)		521
Stock issued under employee stock purchase plan	23	$ 23
Restricted stock granted (in shares)		8,523
Restricted stock granted	0	$ 0
Restricted stock forfeited/cancelled (in shares)		(2,067)
Restricted stock forfeited/cancelled	0	$ 0
Stock-based compensation - stock options	200	200
Stock-based compensation - restricted stock	246	$ 246
Cash dividends paid on common stock	(4,733)		(4,733)
Stock purchased by directors under director stock plan (in shares)		260
Stock purchased by directors under director stock plan	12	$ 12
Stock issued in payment of director fees (in shares)		5,306
Stock issued in payment of director fees	236	$ 236
Balance (in shares) at Dec. 31, 2014		5,939,482
Balance at Dec. 31, 2014	200,026	$ 82,436	116,502	1,088
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	18,441		18,441
Other comprehensive income (loss)	$ (895)			(895)
Stock options exercised (in shares)	37,071	37,071
Stock options exercised	$ 1,139	$ 1,139
Excess tax benefit - stock-based compensation	212	$ 212
Stock issued under employee stock purchase plan (in shares)		339
Stock issued under employee stock purchase plan	17	$ 17
Restricted stock granted (in shares)		15,970
Restricted stock granted	0	$ 0
Restricted stock forfeited/cancelled (in shares)		(450)
Restricted stock forfeited/cancelled	0	$ 0
Stock-based compensation - stock options	252	252
Stock-based compensation - restricted stock	384	$ 384
Cash dividends paid on common stock	(5,390)		(5,390)
Stock purchased by directors under director stock plan (in shares)		245
Stock purchased by directors under director stock plan	12	$ 12
Stock issued in payment of director fees (in shares)		5,295
Stock issued in payment of director fees	275	$ 275
Stock issued from exercise of warrants (in shares)		70,591
Stock issued from exercise of warrants	$ 0	$ 0
Balance (in shares) at Dec. 31, 2015	6,068,543	6,068,543
Balance at Dec. 31, 2015	$ 214,473	$ 84,727	129,553	193
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	23,134	0	23,134	0
Other comprehensive income (loss)	$ (3,486)	$ 0	0
Stock options exercised (in shares)	36,117	36,117
Stock options exercised	$ 1,227	$ 1,227
Excess tax benefit - stock-based compensation	161	$ 161
Stock issued under employee stock purchase plan (in shares)		621
Stock issued under employee stock purchase plan	32	$ 32
Restricted stock granted (in shares)		16,910
Restricted stock granted	0	$ 0
Stock-based compensation - stock options	347	347
Stock-based compensation - restricted stock	638	$ 638
Cash dividends paid on common stock	(6,223)		(6,223)
Stock purchased by directors under director stock plan (in shares)		516
Stock purchased by directors under director stock plan	26	$ 26
Stock issued in payment of director fees (in shares)		4,607
Stock issued in payment of director fees	$ 234	$ 234
Balance (in shares) at Dec. 31, 2016	6,127,314	6,127,314
Balance at Dec. 31, 2016	$ 230,563	$ 87,392	$ 146,464	$ (3,293)

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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash Flows from Operating Activities:
Net income	$ 23,134	$ 18,441	$ 19,771
Adjustments to reconcile net income to net cash provided by operating activities:
(Reversal of) provision for loan losses	(1,850)	500	750
Provision for (reversal of) losses on off-balance sheet commitments	150	(263)	334
Compensation expense--common stock for director fees	180	274	270
Stock-based compensation expense	985	636	446
Excess tax benefits from exercised stock options	(161)	(187)	(118)
Amortization of core deposit intangible	533	619	771
Amortization of investment security premiums, net of accretion of discounts	3,212	2,825	2,759
Accretion of discount on acquired loans	(1,775)	(1,883)	(3,906)
Accretion of discount on subordinated debentures	191	210	216
Net amortization of deferred loan origination costs/fees	114	(281)	(463)
Write-down of other real estate owned	13	40	0
Gain on sale of investment securities	(425)	(79)	(93)
Other-than-temporary impairment on securities available-for-sale	0	0	13
Depreciation and amortization	1,822	1,968	1,585
Loss on disposal of premises and equipment	3	4	0
Earnings on bank owned life insurance policies	(844)	(814)	(841)
Net change in operating assets and liabilities:
Interest receivable	324	(734)	(143)
Interest payable	(53)	(26)	(40)
Deferred rent and other rent-related expenses	(254)	(4)	160
Other assets	257	1,081	(184)
Other liabilities	(110)	1,355	(2,430)
Net cash provided by operating activities	25,446	23,682	18,857
Cash Flows from Investing Activities:
Purchase of held-to-maturity securities	(2,424)	(2,375)	0
Purchase of available-for-sale securities	(161,374)	(287,144)	(18,206)
Proceeds from sale of available-for-sale securities	68,673	2,099	2,436
Proceeds from sale of held-to-maturity securities	1,265	1,015	2,146
Proceeds from paydowns/maturities of held-to-maturity securities	25,779	47,181	16,793
Proceeds from paydowns/maturities of available-for-sale securities	129,669	64,839	46,371
Loans originated and principal collected, net	(32,005)	(88,123)	(88,872)
Purchase of bank owned life insurance policies	(2,133)	0	0
Purchase of premises and equipment	(1,040)	(1,418)	(2,334)
Proceeds from sale of repossessed assets	0	1,502	0
Purchase of Federal Home Loan Bank stock	(1,791)	(136)	(492)
Cash paid for low income housing investment	(301)	(718)	(494)
Net cash provided by (used in) investing activities	24,318	(263,278)	(42,652)
Cash Flows from Financing Activities:
Net increase (decrease) in deposits	44,474	176,607	(35,483)
Proceeds from stock options exercised	1,227	1,139	1,452
Federal Home Loan Bank (repayments) borrowings	(67,000)	52,000	0
Cash dividends paid on common stock	(6,223)	(5,390)	(4,733)
Proceeds from stock issued under employee and director stock purchase plans	58	29	35
Excess tax benefits from exercised stock options	161	187	118
Net cash (used in) provided by financing activities	(27,303)	224,572	(38,611)
Net increase (decrease) in cash and cash equivalents	22,461	(15,024)	(62,406)
Cash and cash equivalents at beginning of period	26,343	41,367	103,773
Cash and cash equivalents at end of period	48,804	26,343	41,367
Supplemental disclosure of cash flow items, non-cash investing and financing activities:
Cash paid in interest	2,131	2,066	2,185
Cash paid in income taxes	13,365	9,068	11,290
Change in unrealized gain on available-for-sale securities	(6,052)	(1,426)	2,963
Stock issued in payment of director fees	234	275	236
Subscription in low income housing tax credit investment	0	1,023	1,000
Securities transferred from available-for-sale to held-to-maturity	0	0	14,297
Transfer of loan to loans held-for-sale at fair value	$ 0	$ 1,502	$ 0

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Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Basis of Presentation: The consolidated financial statements include the accounts of Bank of Marin Bancorp (“Bancorp”), a bank holding company, and its wholly-owned bank subsidiary, Bank of Marin (the “Bank”), a California state-chartered commercial bank. References to “we,” “our,” “us” mean the holding company and the Bank that are consolidated for financial reporting purposes. All material intercompany transactions have been eliminated. We have evaluated subsequent events through the date of filing with the Securities and Exchange Commission (“SEC”) and have determined that there are no subsequent events that require additional recognition or disclosure, except for the transfer of certain investment securities from the available-for-sale category to held-to-maturity as discussed in Note 2, Investment Securities, herein.

The NorCal Community Bancorp Trusts I and II, respectively (the "Trusts"), were formed for the sole purpose of issuing trust preferred securities. Bancorp is not considered the primary beneficiary of the Trusts (variable interest entities), therefore the Trusts are not consolidated in our consolidated financial statements, but rather the subordinated debentures are shown as a liability on our consolidated statements of condition (See Note 7, Borrowings). Bancorp's investment in the securities of the Trusts is accounted for under the equity method and is included in interest receivable and other assets on the consolidated statements of condition.

Nature of Operations: Bancorp, headquartered in Novato, CA, conducts business primarily through its wholly-owned subsidiary, the Bank, which provides a wide range of financial services to customers, who are predominantly professionals, small and middle-market businesses, and individuals who work and/or reside in Marin, Sonoma, Napa, San Francisco and Alameda counties. Besides the headquarters office in Novato, CA, the Bank operates ten branches in Marin County, one in Napa County, one in San Francisco, five in Sonoma County and three in Alameda County. Our accounting and reporting policies conform to generally accepted accounting principles, general practice, and regulatory guidance within the banking industry. A summary of our significant policies follows.

Cash and Cash Equivalents include cash, due from banks, federal funds sold and other short-term investments with maturity less than three months at the time of origination.

Investment Securities are classified as "held-to-maturity," "trading securities" or "available-for-sale." Investments classified as held-to-maturity are those that we have the ability and intent to hold until maturity and are reported at cost, adjusted for the amortization or accretion of premiums or discounts. Investments held for resale in anticipation of short-term market movements are classified as trading securities and are reported at fair value, with unrealized gains and losses included in earnings. Investments that are neither held-to-maturity nor trading are classified as available-for-sale and are reported at fair value. Unrealized gains and losses for available-for-sale securities, net of related tax, are reported as a separate component of comprehensive income and included in stockholders' equity until realized. For discussion of our methodology in determining fair value, see Note 9, Fair Value of Assets and Liabilities.

At each financial statement date, we assess whether declines in the fair value of held-to-maturity and available-for-sale securities below their costs are deemed to be other-than-temporary. We consider, among other things, (i) the length of time and the extent to which the fair value has been less than cost, (ii) the financial condition and near-term prospects of the issuer, and (iii) our intent and ability to retain the investment for a period of time sufficient to allow for any anticipated recovery in fair value. Evidence evaluated includes, but is not limited to, the remaining payment terms of the instrument and economic factors that are relevant to the collectability of the instrument, such as: current prepayment speeds, the current financial condition of the issuer(s), industry analyst reports, credit ratings, credit default rates, interest rate trends, the quality of any credit enhancement and the value of any underlying collateral.

For each security in an unrealized loss position ("impaired security"), we assess whether we intend to sell the security or if it is more likely than not that we will be required to sell the security before recovery of its amortized cost basis. If we intend to sell the security or it is more likely than not we will be required to sell the security before recovery of its amortized cost basis, the entire difference between the investment’s amortized cost basis and its fair value at the balance sheet date is recognized against earnings.

For impaired securities that are not intended for sale and will not be required to be sold prior to recovery of our amortized cost basis, we determine if the impairment has a credit loss component. For both held-to-maturity and available-for-sale securities, if the amount of cash flows expected to be collected are less than the amortized cost, an other-than-temporary impairment shall be considered to have occurred and the credit loss component is recognized against earnings as the difference between present value of the expected future cash flows and the amortized cost. In determining the present value of the expected cash flows, we discount the expected cash flows at the effective interest rate implicit in the security at the date of purchase. The remaining difference between the fair value and the amortized basis is deemed to be due to factors that are not credit related and is recognized in other comprehensive income, net of applicable taxes.

For held-to-maturity securities, if there is no credit loss component, no impairment is recognized. The portion of other-than-temporary impairment recognized in other comprehensive income for credit impaired debt securities classified as held-to-maturity is accreted from other comprehensive income to the amortized cost of the debt security over the remaining life of the debt security in a prospective manner on the basis of the amount and timing of future estimated cash flows.

Premiums and discounts are amortized or accreted over the life of the related security as an adjustment to yield using the effective interest method. Dividend and interest income are recognized when earned. Realized gains and losses on the sale of securities and credit losses related to other-than-temporary impairment on available-for-sale and held-to-maturity securities are included in non-interest income as gains (losses) on investment securities, net. The specific identification method is used to calculate realized gains and losses on sales of securities.

Originated Loansare reported at the principal amount outstanding net of deferred fees (costs), charge-offs and the allowance for loan losses (“ALLL”). Interest income is accrued daily using the simple interest method. Loans are placed on non-accrual status when Management believes that there is doubt as to the collection of principal or interest, generally when they become contractually past due by ninety days or more with respect to principal or interest, except for loans that are well-secured and in the process of collection. When loans are placed on non-accrual status, any accrued but uncollected interest is reversed from current-period interest income. Non-accrual loans may be returned to accrual status when one of the following occurs:

• The borrower has resumed paying the full amount of the principal and interest and we are satisfied with the borrower's financial position. In order to meet this test, we must have received repayment of all past due principal and interest unless the amounts contractually due are reasonably assured of repayment within a reasonable period of time, and there has been a sustained period of repayment performance (generally, six consecutive monthly payments), according to the original contractual terms or modified terms for loans whose contractual terms have been restructured in a manner which grants a concession to a borrower experiencing financial difficulties (“troubled debt restructuring”).

• The loan has become well secured and is in the process of collection.

Loan origination fees and commitment fees, offset by certain direct loan origination costs, are deferred and amortized as yield adjustments over the contractual lives of the related loans.

Loan Charge-Off Policy:For all loan types excluding overdraft accounts, we generally make a charge-off determination at or before 90 days past due. A collateral-dependent loan is partially charged down to the fair value of collateral securing it if: (1) it is deemed uncollectable, or (2) it has been classified as a loss by either our internal loan review process or external examiners. A non-collateral-dependent loan is partially charged down to its net realizable value under the same circumstances. Overdraft accounts are generally charged off when they exceed 60 days past due.

Acquired Loans: Acquired loans are recorded at their estimated fair values at acquisition date in accordance with ASC 805 Business Combinations, factoring in credit losses expected to be incurred over the life of the loan. Accordingly, an allowance for loan losses is not carried over or recorded for acquired loans as of the acquisition date.

We estimated the fair value of acquired loans at the acquisition date based on a discounted cash flow methodology that considered factors including the type of loan and related collateral, risk classification, fixed or variable interest rate, term of loan, whether or not the loan was amortizing, and current discount rates. Loans, except for purchased credit impaired ("PCI") loans, were grouped together according to similar risk characteristics and treated in the aggregate when applying various valuation techniques. Expected cash flows incorporated our best estimate of key assumptions at the time, such as property values, default rates, loss severity and prepayment speeds. Discount rates were based on market rates for new originations of comparable loans, where available, and included adjustments for liquidity factors. To the extent comparable market rates were not readily available, a discount rate was derived based on the assumptions of market participants' cost of funds, servicing costs and return requirements for comparable risk assets. In either case, the discount rate did not include a factor for credit losses, as that had been considered in estimating the cash flows. The process of calculating fair values of acquired loans, including estimates of losses expected to be incurred over the estimated remaining lives of the loans at acquisition date and ongoing updates to Management's expectation of future cash flows, requires significant subjective judgments and assumptions. The economic environment and lack of market liquidity and transparency are factors that have influenced, and may continue to affect, these assumptions and estimates.

We acquired loans with evidence of significant credit quality deterioration subsequent to their origination and for which it was probable, at acquisition, that we would be unable to collect all contractually required payments. Management applied significant subjective judgment in determining which loans were PCI loans. Evidence of credit quality deterioration as of the purchase date may include data such as past due and nonaccrual status, risk grades and charge-off history. Revolving credit agreements (e.g., home equity lines of credit and revolving commercial loans) where the borrower had revolving rights at acquisition date were not considered PCI loans because the timing and amount of cash flows could not be reasonably estimated.

The difference between the undiscounted expected cash flows expected to be collected and the fair value at acquisition date ("accretable difference") is accreted into interest income at a level yield of return over the estimated remaining life of the PCI loan, provided that the timing and amount of future cash flows is reasonably estimable. The accretable yield is affected by:

• Changes in interest rate indices for variable rate loans – Expected future cash flows are based on the variable rates in effect at the time of the regular evaluations of cash flows expected to be collected;

• Changes in prepayment assumptions – Prepayments affect the estimated life of the loans which may change the amount of interest income, and possibly principal, expected to be collected; and

• Changes in the expected principal and interest payments over the estimated life – Updates to expected cash flows are driven by the credit outlook and actions taken with borrowers. Changes in expected future cash flows from loan modifications are included in the regular evaluations of cash flows expected to be collected.

The cash flows expected to be collected are updated each quarter based on current assumptions regarding default rates, loss severities, and other factors that are reflective of current financial conditions of the borrowers and the market conditions. Probable decreases in expected cash flows after acquisition result in impairment recorded as a specific allowance for loan losses or a charge-off to the allowance. Impairment is calculated as the present value of the expected future cash flows on the PCI loan, discounted at the loan's effective interest rate implicit in the loan.

The nonaccretable difference on the date of acquisition is defined as the difference between the contractually required payments and the cash flows expected to be collected, considering the result of prepayments, and is not recorded.

For purposes of accounting for the PCI loans from past business combinations, we elected not to apply the pooling method but to account for these loans individually. Disposals of loans, which may include sales of loans to third parties, receipt of payments in full by the borrower, or foreclosure of the collateral, result in removal of the loan from the PCI loan portfolio at its carrying amount. If a PCI loan pays off earlier than expected, a gain is recorded as interest income when the payoff amount exceeds the recorded investment.

For acquired loans not considered credit impaired ("non-PCI"), we recognize the entire fair value discount accretion to interest income, based on contractual cash flows using an effective interest rate method for term loans, and on a straight line basis for revolving lines. When a non-PCI loan is placed on non-accrual status subsequent to acquisition, accretion stops until the loan is returned to accrual status. The level of accretion on non-PCI loans varies from period to period due to maturities and early pay-offs of these loans during the reporting periods. Subsequent to acquisition, if the probable and estimable losses for non-PCI loans exceed the amount of the remaining unaccreted discount, the excess is established as an allowance for loan losses.

For further information regarding our acquired loans, see Note 3, Loans and Allowance for Loan Losses.

Allowance for Loan Lossesis based upon estimates of loan losses and is maintained at a level considered adequate to provide for probable losses inherent in the loan portfolio. The allowance is increased by provisions for loan losses charged against earnings and reduced by charge-offs, net of recoveries.

In periodic evaluations of the adequacy of the allowance balance, Management considers current economic conditions, known and inherent risks in the portfolio, adverse situations that may affect the borrower's ability to repay, the estimated value of any underlying collateral, our past loan loss experience and other factors. The ALLL is based on estimates, and ultimate losses may vary from current estimates. Our Board of Directors' Asset/Liability Management Committee (“ALCO”) reviews the adequacy of the ALLL at least quarterly.

The overall allowance consists of 1) specific allowances for individually identified impaired loans ("ASC 310-10") and 2) general allowances for pools of loans ("ASC 450-20"), which incorporate quantitative (e.g., historical loan loss rates) and qualitative risk factors (e.g., portfolio growth and trends, credit concentrations, economic and regulatory factors, etc.).

The first component, specific allowances, results from the analysis of identified problem credits and the evaluation of sources of repayment including collateral, as applicable. Through Management's ongoing loan grading and credit monitoring process, individual loans are identified that have conditions indicating the borrower may be unable to pay all amounts due in accordance with the contractual terms. These loans are evaluated for impairment individually by Management. Management considers an originated loan to be impaired when it is probable we will be unable to collect all amounts due according to the contractual terms of the loan agreement. When the fair value of the impaired loan is less than the recorded investment in the loan, the difference is recorded as an impairment through the establishment of a specific allowance. For loans determined to be impaired, the extent of the impairment is measured based on the present value of expected future cash flows discounted at the loan's effective interest rate at origination (for originated loans), based on the loan's observable market price, or based on the fair value of the collateral if the loan is collateral dependent or if foreclosure is imminent. Generally with problem credits that are collateral dependent, we obtain appraisals of the collateral at least annually. We may obtain appraisals more frequently if we believe the collateral value is subject to market volatility, if a specific event has occurred to the collateral, or if we believe foreclosure is imminent.

The second component is an estimate of the probable inherent losses in each loan pool with similar characteristics. This analysis encompasses the entire loan portfolio, excluding individually identified impaired loans and acquired loans whose purchase discount has not been fully accreted. Under our allowance model, loans are evaluated on a pool basis by federal regulatory reporting codes ("CALL codes" or "segments"), which are further delineated by assigned credit risk ratings, as described in Note 3, Loans and Allowance for Loan Losses. Segments include the following:

• Loans secured by real estate:

-     1-4 family residential construction loans

-     Other construction loans and all land development and other land loans

-     Secured by farmland (including residential and other improvements)

-     Revolving, open-end loans secured by 1-4 family residential properties and extended under lines of credit

-     Closed-end loans secured by 1-4 family residential properties, secured by first liens

-     Closed-end loans secured by 1-4 family residential properties, secured by junior liens

-     Secured by multifamily (5 or more) residential properties

-     Loans secured by owner-occupied non-farm nonresidential properties

-     Loans secured by other non-farm nonresidential properties

• Loans to finance agricultural production and other loans to farmers

• Commercial and industrial loans

• Loans to individuals for household, family and other personal expenditures (i.e., consumer loans)

• Other loans

The model determines general allowances by loan segment based on quantitative (loss history) and qualitative risk factors. Qualitative internal and external risk factors include, but are not limited to, the following:

• Changes in the nature and volume of the loan portfolio.

• Changes in the volume and severity of past due loans, the volume of non-accruals loans, and the volume and severity of adversely classified or graded loans.

• The existence and effect of individual loan and loan segment concentrations.

• Changes in lending policies and procedures, including changes in underwriting standards and collection, charge-off, and recovery practices not considered elsewhere.

• Changes in the experience, ability, and depth of lending management and other relevant staff.

• Changes in the quality of our systematic loan review processes.

• Changes in economic and business conditions, and developments that affect the collectability of the portfolio.

• Changes in the value of underlying collateral, where applicable.

• The effect of other external factors such as legal and regulatory requirements on the level of estimated credit losses in the portfolio.

• The effect of acquisitions of other loan portfolios on our infrastructure, including risk associated with entering new geographic areas as a result of such acquisitions.

• The presence of specialized lending segments in the portfolio.

Beginning with the quarter ended March 31, 2016, Management enhanced its methodology for determining the quantitative and qualitative risk factors assigned to unimpaired loans in order to capture historical loss information at the loan level, track loss migration through risk grade deterioration, increase efficiencies related to performing the calculations, and refine how we incorporate environmental and other unique risk elements into our estimation of credit losses. The changes in methodology did not result in a material difference in general allowances. Prior to March 31, 2016, under the Bank's allowance model, each segment was assigned a quantitative loss factor that was primarily based on a rolling twenty-quarter look-back at our historical losses for that particular segment, as well as a number of other assumptions. Under the current methodology, the quantitative risk factor for each segment utilizes the greater of either the historical loss method based on a rolling twenty-four-quarter look-back period or migration analysis loss method based on loss history beginning March 2010.

Under the historical loss method, quarterly loss rates are calculated for each segment by dividing annualized net charge-offs during each quarter by the quarter's average segment balances. The quarterly loss rates are averaged over the entire loss history period. Under the migration analysis method, loss rates are calculated at the risk grade and segment levels by dividing the net charge-off amount by the total segment balance at the beginning of each migration period where the charged-off loan in question was present. Migration loss rates are averaged for each risk grade and segment for the entire loss history period. For each segment, the loss rates that result in the larger of the migration loss reserves or segment historical loss reserves are applied to the current loan balances. Qualitative factors are combined with these quantitative factors at the segment level to arrive at the overall general allowances.

We establish specific allowances to account for credit deterioration for probable decreases in cash flows for PCI loans subsequent to acquisition. The estimated cash flows expected to be collected on PCI loans is updated quarterly and requires the use of key assumptions and estimates based on factors such as the current economic environment, changes in collateral values, loan workout plans, changes in the probability of default, loss severities, and prepayments. Probable decreases in expected cash flows after acquisition result in impairment recorded as a specific allowance for loan losses or a charge-off to the allowance. Impairment is calculated as the present value of the expected future cash flows on the PCI loan, discounted at the loan's effective interest rate implicit in the loan.

While we believe we use the best information available to determine the allowance for loan losses, our results of operations could be significantly affected if circumstances differ substantially from the assumptions used in determining the allowance. A decline in local and national economic conditions, or significant changes in other assumptions, could result in a material increase in the allowance for loan losses and may adversely affect our financial condition and results of operations. In addition, the determination of the amount of the allowance for loan losses is subject to review by bank regulators as part of their routine examination process, which may result in the establishment of additional allowance for loan losses based upon their judgment of information available to them at the time of their examination.

For further information regarding the allowance for loan losses, see Note 3, Loans and Allowance for Loan Losses.

Allowance for Losses on Off-Balance Sheet Commitments: We make commitments to extend credit to meet the financing needs of our customers in the form of loans or standby letters of credit. We are exposed to credit loss in the event that a decline in credit quality of the borrower leads to nonperformance. We record an allowance for losses on these off-balance sheet commitments based on estimates of probability that these commitments will be drawn upon according to our historical utilization experience on different types of commitments and expected loss severity. This allowance is included in interest payable and other liabilities on the consolidated statements of condition.

Transfers of Financial Assets: We have entered into certain participation agreements with other organizations. We account for these transfers of financial assets as sales when control over the transferred financial assets has been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets and liabilities have been isolated from us, (2) the transferee has the right to pledge or exchange the assets (or beneficial interests) it received, free of conditions that constrain it from taking advantage of that right, beyond a trivial benefit and (3) we do not maintain effective control over the transferred financial assets or third-party beneficial interests related to those transferred assets. No gain or loss has been recognized by us on the sale of these participation interests in 2016, 2015 and 2014.

Premises and Equipment: Premises and equipment consist of leasehold improvements, furniture, fixtures, software and equipment and are stated at cost, less accumulated depreciation and amortization, which are calculated on a straight-line basis. Furniture and fixtures are depreciated over eight years and equipment is generally depreciated over three to twenty years. Leasehold improvements are amortized over the lesser of their estimated useful lives or the terms of the leases. When assets are sold or otherwise disposed of, the cost and related accumulated depreciation or amortization are removed from the accounts and any resulting gain or loss is recognized in income for the period. The cost of maintenance and repairs is charged to expense as incurred.

Business Combinations: Business combinations are accounted for under the acquisition method of accounting in accordance with ASC 805, Business Combinations. Under the acquisition method the acquiring entity in a business combination recognizes the acquired assets and assumed liabilities at their estimated fair values as of the date of acquisition. Any excess of the purchase price over the fair value of net assets and other identifiable intangible assets acquired is recorded as goodwill. To the extent the fair value of net assets acquired, including other identifiable assets, exceed the purchase price, a bargain purchase gain is recognized. Assets acquired and liabilities assumed from contingencies must also be recognized at fair value, if the fair value can be determined during the measurement period. Results of operations of an acquired business are included in the statement of operations from the date of acquisition. Acquisition-related costs, including conversion and restructuring charges, are expensed as incurred.

Goodwill and Other Intangible Assets: Goodwill is determined as the excess of the fair value of the consideration transferred, plus the fair value of any noncontrolling interests in the acquiree, over the fair value of the net assets acquired and liabilities assumed as of the acquisition date. Goodwill that arises from a business combination is periodically evaluated for impairment at the reporting unit level, at least annually. Intangible assets with definite useful lives are amortized over their estimated useful lives to their estimated residual values. Core deposit intangible represents the estimated future benefit of deposits related to an acquisition and is booked separately from the related deposits and evaluated periodically for impairment. The core deposit intangible asset is amortized on an accelerated method over its estimated useful life of ten years. At December 31, 2016, the future estimated amortization expense is as follows:

(in thousands)	2017		2018		2019		2020		2021		Thereafter		Total
Core deposit intangible amortization	$	472	$	413	$	388	$	365	$	343	$	599	$	2,580

We make a qualitative assessment of whether it is more likely than not that the fair value of a reporting unit where goodwill is assigned is less than its carrying amount before applying a two-step goodwill impairment test. If we conclude that it is more likely than not that the fair value is more than its carrying amount, we do not perform the two-step impairment test. Goodwill is tested for impairment on an interim basis if circumstances change or an event occurs between annual tests that would more likely than not reduce the fair value of the reporting unit below its carrying amount. The qualitative assessment includes adverse events or circumstances identified that could negatively affect the reporting units’ fair value as well as positive and mitigating events. Such indicators may include, among others, a significant change in legal factors or in the general business climate, significant change in our stock price and market capitalization, unanticipated competition, and an action or assessment by a regulator.

Other Real Estate Owned ("OREO"):OREO is comprised of property acquired through foreclosure, in substance repossession or acceptance of deeds-in-lieu of foreclosure when the related loan receivable is de-recognized. OREO is recorded at fair value of the collateral less estimated costs to sell, establishing a new cost basis, and subsequently accounted for at the lower of cost or fair value less estimated costs to sell. Any shortfall of collateral value from the recorded investment of the related loan is recognized as loss at the time of foreclosure and is charged against the allowance for loan losses. Fair value of collateral is generally based on an independent appraisal of the property. Revenues and expenses associated with OREO, and subsequent adjustments to the fair value of the property and to the estimated costs of disposal, are realized and reported as a component of non-interest income and expense when incurred.

Bank Owned Life Insurance ("BOLI"): The Bank owns life insurance policies on certain key current and former officers. BOLI is recorded in interest receivable and other assets on the consolidated statements of condition at the amount that can be realized under the insurance contract at the period end, which is the cash surrender value adjusted for other charges or amounts due that are probable at settlement.

Federal Home Loan Bank of San Francisco ("FHLB") Stock: The Bank is a member of the FHLB. Members are required to own a certain amount of stock based on the level of borrowings and other factors. Our investment in FHLB stock is carried at cost and is included as part of interest receivable and other assets on the consolidated statements of condition. We periodically evaluate FHLB stock for impairment based on ultimate recovery of par value. Both cash and stock dividends are reported as non-interest income.

Investments in Low Income Housing Tax Credit Funds: We have invested in limited partnerships that were formed to develop and operate affordable housing projects for low or moderate income tenants throughout California. Our ownership in each limited partnership is less than two percent. In accordance with ASU No. 2014-01, Investments - Equity Method and Joint Ventures (Topic 323), we elected to account for the investments in qualified affordable housing tax credit funds using the proportional amortization method. Under the proportional amortization method, the initial cost of the investment is amortized in proportion to the tax credits and other tax benefits received and the net investment performance is recognized as part of income tax expense (benefit). Each of the partnerships must meet the regulatory minimum requirements for affordable housing for a minimum 15-year compliance period to fully utilize the tax credits. If the partnerships cease to qualify during the compliance period, the credit may be denied for any period in which the project is not in compliance and a portion of the credit previously taken is subject to recapture with interest.

Employee Stock Ownership Plan (“ESOP”): We recognize compensation cost of the ESOP contribution when funds become committed for the purchase of Bancorp's common shares into the ESOP in the year in which the employees render service entitling them to the contribution. If we contribute stock, the compensation cost is the fair value of the shares when they are committed to be released, i.e. when the number of shares becomes known. During 2016, 2015 and 2014, the Bank made only cash contributions to the ESOP without leveraging.

Income Taxes: Income taxes reported in the consolidated financial statements are computed based on an asset and liability approach. We recognize the amount of taxes payable or refundable for the current year and we record deferred tax assets and liabilities for future tax consequences attributable to differences between the financial statement carrying amount of existing assets and liabilities and their respective tax bases using enacted tax rates in effect for the year in which the temporary differences are expected to reverse. We record net deferred tax assets to the extent it is more likely than not that they will be realized. In evaluating our ability to recover the deferred tax assets and the need to establish a valuation allowance against the deferred tax assets, Management considers all available positive and negative evidence, including scheduled reversals of deferred tax liabilities, projected future taxable income, and tax planning strategies. In projecting future taxable income, Management develops assumptions including the amount of future state and federal pretax operating income, the reversal of temporary differences, and the implementation of feasible and prudent tax planning strategies. These assumptions require significant judgment about the forecasts of future taxable income and are consistent with the plans and estimates being used to manage the underlying business. Bancorp files consolidated federal and combined state income tax returns.

We recognize the financial statement effect of a tax position when it is more likely than not, based on the technical merits and all available evidence, that the position will be sustained upon examination, including the resolution through protests, appeals or litigation processes. For tax positions that meet the more-likely-than-not threshold, we measure and record the largest amount of tax benefit that is greater than fifty percent likely of being realized upon ultimate settlement with the taxing authority. The remainder of the benefits associated with tax positions taken is recorded as unrecognized tax benefits, along with any related interest and penalties. Interest and penalties related to unrecognized tax benefits are recorded in tax expense.

In deciding whether or not our tax positions taken meet the more-likely-than-not recognition threshold, we must make judgments and interpretations about the application of inherently complex state and federal tax laws. To the extent tax authorities disagree with tax positions taken by us, our effective tax rates could be materially affected in the period of settlement with the taxing authorities. Revision of our estimate of accrued income taxes also may result from our own income tax planning, which may affect effective tax rates and results of operations for any reporting period.

We present an unrecognized tax benefit as a reduction of a deferred tax asset for a net operating loss ("NOL") carryforward, or similar tax loss or tax credit carryforward, rather than as a liability, when (1) the uncertain tax position would reduce the NOL or other carryforward under the tax law of the applicable jurisdiction and (2) we intend to and are able to use the deferred tax asset for that purpose. Otherwise, the unrecognized tax benefit is presented as a liability instead of being netted with deferred tax assets.

Earnings per share (“EPS”) are based upon the weighted average number of common shares outstanding during each year. The following table shows: 1) weighted average basic shares, 2) potentially dilutive weighted average common shares related to stock options, unvested restricted stock awards and stock warrant, and 3) weighted average diluted shares. Basic EPS are calculated by dividing net income by the weighted average number of common shares outstanding during each period, excluding unvested restricted stock awards. Diluted EPS are calculated using the weighted average number of potentially dilutive common shares. The number of potentially dilutive common shares included in quarterly diluted EPS is computed using the average market prices during the three months included in the reporting period under the treasury stock method. The number of potentially dilutive common shares included in year-to-date diluted EPS is a year-to-date weighted average of potentially dilutive common shares included in each quarterly diluted EPS computation. We have two forms of our outstanding common stock: common stock and unvested restricted stock awards. Holders of unvested restricted stock awards receive non-forfeitable dividends at the same rate as common shareholders and they both share equally in undistributed earnings. Under the two-class method, the difference in EPS is not significant for these participating securities.

(in thousands, except per share data)	2016		2015		2014
Weighted average basic shares outstanding	6,073		5,966		5,893
Potentially dilutive common shares related to:
Stock options	34		41		43
Unvested restricted stock awards	8		5		5
Warrant	—		53		65
Weighted average diluted shares outstanding	6,115		6,065		6,006
Net income	$	23,134	$	18,441	$	19,771
Basic EPS	$	3.81	$	3.09	$	3.35
Diluted EPS	$	3.78	$	3.04	$	3.29
Weighted average anti-dilutive shares not included in the calculation of diluted EPS	64		36		45

Share-Based Compensation: All share-based payments, including stock options and restricted stock, are recognized as stock-based compensation expense in the statements of comprehensive income based on the grant-date fair value of the award with a corresponding increase in common stock. The grant-date fair value of the award is amortized on a straight-line basis over the requisite service period, which is generally the vesting period. The stock-based compensation expense excludes stock grants to directors as compensation for their services, which are recognized as director expenses separately based on the grant-date value of the stock. See Note 8, Stockholders' Equity and Stock Option Plans for further discussion.

We determine fair value of stock options at the grant date using a Black-Scholes pricing model that takes into account the stock price at the grant date, the exercise price, the expected life of the option, the volatility of the underlying stock, the expected dividend yield and the risk-free interest rate over the expected life of the option. The expected term of options granted is derived from historical data on employee exercises and post-vesting employment termination behavior. The risk-free rate for periods within the expected life of the option is based on the U.S. Treasury yield curve in effect at the time of the grant. Expected volatility is based on the historical volatility of the common stock over the most recent period that is generally commensurate with the expected life of the options. In addition, we estimate forfeitures based on historical forfeiture experience and expense is recognized only for those shares expected to vest. The Black-Scholes option valuation model requires the input of highly subjective assumptions, including the expected life of the stock-based award and stock price volatility. The assumptions used represent Management's best estimates based on historical information, but these estimates involve inherent uncertainties and the application of Management's judgment. As a result, if other assumptions had been used, the recorded stock-based compensation expense could have been materially different from that recorded in the consolidated financial statements. The fair value of restricted stock is based on the stock price on grant date.

Derivative Financial Instruments and Hedging Activities - Fair Value Hedges: All of our interest rate swap contracts are designated and qualified as fair value hedges. The terms of our interest rate swap contracts are closely aligned to the terms of the designated fixed-rate loans. The hedging relationships are tested for effectiveness on a quarterly basis. The interest rate swaps are carried on the consolidated statements of condition at their fair value in other assets (when the fair value is positive) or in other liabilities (when the fair value is negative). The changes in the fair value of the interest rate swaps are recorded in interest income. The unrealized gains or losses due to changes in fair value of the hedged fixed-rate loans are recorded as an adjustment to the hedged loans and offset in interest income. For derivative instruments executed with the same counterparty under a master netting arrangement, we do not offset fair value amounts of interest rate swaps in liability position with the ones in asset position.

From time to time, we make firm commitments to enter into long-term fixed-rate loans with borrowers backed by yield maintenance agreements and simultaneously enter into forward interest rate swap agreements with correspondent banks to mitigate the change in fair value of the yield maintenance agreement. Prior to loan funding, yield maintenance agreements with net settlement features that meet the definition of a derivative are considered as non-designated hedges and are carried on the consolidated statements of condition at their fair value in other assets (when the fair value is positive) or in other liabilities (when the fair value is negative). The offsetting changes in the fair value of the forward swap and the yield maintenance agreement are recorded in interest income. When the fixed-rate loans are originated, the forward swaps are designated to offset the change in fair value in the loans. Subsequent to the point of the swap designations, the related yield maintenance agreements are no longer considered derivatives. Their fair value at the designation date was recorded in other assets and is amortized using the effective yield method over the life of the respective designated loans.

The net effect of the change in fair value of interest rate swaps, the amortization of the yield maintenance agreement and the change in the fair value of the hedged loans result in an insignificant amount of hedge ineffectiveness recognized in interest income. For further detail, see Note 14, Derivative Financial Instruments and Hedging Activities.

Advertising Costsare expensed as incurred. For the years ended December 31, 2016, 2015, and 2014, advertising costs totaled $565 thousand, $334 thousand, and $400 thousand, respectively.

Comprehensive Income includes net income and changes in the unrealized gain or loss of available-for-sale investment securities, net of related taxes, reported on the statements of comprehensive income and as components of stockholders' equity.

Fair Value Measurements: We use fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. We base our fair values on the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Securities available-for-sale and derivatives are recorded at fair value on a recurring basis. Additionally, from time to time, we may be required to record certain assets at fair value on a non-recurring basis, such as purchased loans recorded at acquisition date, certain impaired loans, other real estate owned and securities held-to-maturity that are other-than-temporarily impaired. These non-recurring fair value adjustments typically involve write-downs of individual assets due to application of lower-of-cost or market accounting.

When we develop our fair value measurement process, we maximize the use of observable inputs. Whenever there is no readily available market data, we use our best estimates and assumptions in determining fair value, but these estimates involve inherent uncertainties and the application of Management's judgment. As a result, if other assumptions had been used, our recorded earnings or disclosures could have been materially different from those reflected in these financial statements.

For detailed information on our use of fair value measurements and our related valuation methodologies, see Note 9, Fair Value of Assets and Liabilities.

Use of Estimates: The preparation of financial statements in conformity with generally accepted accounting principles in the United States of America requires Management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant accounting estimates reflected in the consolidated financial statements include ALLL, other-than-temporary impairment of investment securities, accrued liabilities, accounting for income taxes and fair value measurements (including fair values of acquired assets and assumed liabilities at acquisition dates) as discussed in the Notes herein.

Recently Adopted and Issued Accounting Standards

In April 2015, the FASB issued ASU No. 2015-05, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40) Customer's Accounting for Fees Paid in a Cloud Computing Arrangement. This ASU was further clarified in December 2015 by ASU No. 2015-19, Technical Corrections and Improvements. These amendments provide guidance about a customer's accounting for fees paid in a cloud computing arrangement. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement as an intangible asset. If a cloud computing arrangement does not include a software license, then the customer should account for the arrangement as a service contract. The two criteria that must be met to be considered a software license are: 1) the customer has the contractual right to take possession of the software at any time during the hosting period without significant penalty; and 2) it is feasible for the customer to either run the software on its own hardware or contract with another party unrelated to the vendor to host the software. We adopted the accounting standards on a prospective basis during the first quarter of 2016 with no material impact on our financial condition or results of operations.

In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-09, Revenue from Contracts with Customers (Topic 606). This ASU is a converged standard involving FASB and International Financial Reporting Standards that provides a single comprehensive revenue recognition model for all contracts with customers across transactions and industries. The core principal of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount and at a time that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Subsequent updates related to Revenue from Contracts with Customers (Topic 606) are as follows:

• August 2015 ASU No. 2015-14 - Deferral of the Effective Date, institutes a one-year deferral of the effective date of this amendment to annual reporting periods beginning after December 15, 2017. Early application is permitted only as of annual periods beginning after December 15, 2016, including interim reporting periods within that reporting period.

• March 2016 ASU No. 2016-08 - Principal versus Agent Considerations (Reporting Revenue Gross versus Net), clarifies the implementation guidance on principal versus agent considerations and on the use of indicators that assist an entity in determining whether it controls a specified good or service before it is transferred to the customer.

• April 2016 ASU No. 2016-10 - Identifying Performance Obligations and Licensing, provides guidance in determining performance obligations in a contract with a customer and clarifies whether a promise to grant a license provides a right to access or the right to use intellectual property.

• May 2016 ASU No. 2016-12 - Narrow Scope Improvements and Practical Expedients, gives further guidance on assessing collectability, presentation of sales taxes, noncash consideration, and completed contracts and contract modifications at transition.

• December 2016 ASU No. 2016-20 - Technical Corrections and Improvements to Topic 606, further clarifies specific aspects of previously issued guidance or corrects unintended application of the guidance.

Our revenue is mainly comprised of net interest income on financial assets and financial liabilities, which is explicitly excluded from the scope of ASU 2014-09. While the recognition of certain revenue arrangements of components of our non-interest income may be affected by the ASU, we do not expect it to have a material impact on our financial condition and results of operations.

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. The amendments in this ASU make improvements to accounting standards related to financial instruments, including the following:

• Requires equity investments, except for those accounted for under the equity method of accounting or those that result in consolidation of the investee, to be measured at fair value with changes in fair value recognized in net income. However, an entity may choose to measure equity investments that do not have readily determinable fair values at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer.

• Simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment. When impairment exists, an entity is required to measure the investment at fair value.

• Eliminates the requirement to disclose the method(s) and significant assumptions used to estimate the fair value that is currently required to be disclosed for financial instruments measured at amortized cost on the balance sheet.

• Requires public companies to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes.

• Requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset (i.e., securities or loans and receivables) on the balance sheet or the accompanying notes to the financial statements.

• Clarifies that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity's other deferred tax assets.

ASU 2016-01 is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. This ASU may affect our financial statement presentation and related footnotes, but we do not expect it to have a material impact on our financial condition or results of operations.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). The amendments in this ASU intend to increase transparency and comparability among organizations by recognizing an asset, which represents the right to use the asset for the lease term, and a lease liability, which is a lessee's obligation to make lease payments measured on a discounted basis. This ASU generally applies to leasing arrangements exceeding a twelve month term. ASU 2016-02 is effective for annual periods, including interim periods within those annual periods beginning after December 15, 2018 and requires a modified retrospective method of adoption. Early application of the amendments is permitted. We intend to adopt this ASU during the first quarter of 2019, as required, and are currently evaluating accounting solutions. As of December 31, 2016, our undiscounted operating lease obligations that were off-balance sheet totaled $21.1 million (See Note 12, Commitments and Contingencies). Upon adoption of this ASU, the present values of leases currently classified as operating leases will be recognized as lease assets and liabilities on our balance sheet. Additional disclosures of key information about our leasing arrangements will also be required. We do not expect the ASU will have a material impact on our capital ratios or return on average assets when adopted and we are currently evaluating the effect the ASU will have on other components of our financial condition and results of operations.

In March 2016, the FASB issued ASU No. 2016-05, Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships. A contract novation refers to replacing one of the parties to a derivative instrument with a new party. This ASU clarifies that a change in counterparty in a derivative instrument does not, in and of itself, require dedesignation of that hedging relationship and therefore discontinue the application of hedge accounting. ASU 2016-05 is effective for financial statements issued for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. We have evaluated the requirements of this ASU and have determined that it will not have a material impact on our financial condition or results of operations upon adoption in the first quarter of 2017.

In March 2016, the FASB issued ASU No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. This ASU identifies areas for simplification involving several aspects of accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, forfeiture accounting, and classifications on the statement of cash flows. ASU 2016-09 is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. We have implemented the requirements of this ASU and have elected to change our accounting policy to recognize forfeitures as they occur starting January 1, 2017, which might cause earnings volatility in the future if there are material forfeitures. ASU 2016-09 also requires that all income tax effects related to settlements of share-based payment awards be reported in earnings as an increase (or decrease) to income tax expense. Previously, income tax benefits at settlement of an award were reported as an increase (or decrease) to stockholders' equity to the extent that those benefits were greater than (or less than) the income tax benefits recognized in earnings during the award's vesting period. The requirement to report those income tax effects in earnings will be applied to settlements occurring on or after January 1, 2017. These changes and those of the remaining provisions of ASU 2016-09 are not expected to have significant impact on our financial condition and results of operations.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. Under the new guidance, entities will be required to measure expected credit losses by utilizing forward-looking information to assess an entity's allowance for credit losses. The measurement of expected credit losses is based on historical experience, current conditions and reasonable and supportable forecasts that affect the collectability of a credit over its remaining life. In addition, the ASU amends the accounting for potential credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. ASU 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. As discussed previously under Allowance For Loan Losses, Management refined our allowance for loan loss model in 2016 and enhanced our loan-level data collection and methodology for analyzing credit losses in preparation for the new accounting standards. We will continue our evaluation of the provisions of this ASU and will be monitoring developments, additional guidance and the potential outcome the amendments will have on our financial condition and results of operations upon adoption in the first quarter of 2020.

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. This ASU provides guidance on how to present and classify eight specific cash flow topics in the statement of cash flows. The ASU is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The amendments should be applied using a retrospective transition method to each period presented, if practical. This ASU may affect our financial statement presentation, but we do not expect it to have a material impact on our financial condition, statements of cash flows, or results of operations.

In January 2017, the FASB issued ASU No. 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. The amendments are intended to help companies evaluate whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses and provide a more robust framework to use in determining when a set of assets and activities is a business. The amendments are effective for annual periods after December 31, 2017, including interim periods within those periods. We will consider these amendments in our evaluation of the accounting for any future business acquisitions or disposals of assets, upon adoption in first quarter of 2018.

In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This amendment simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test, which would measure a goodwill impairment loss by comparing the implied fair value of goodwill with the carrying amount of that goodwill. Instead, an entity will perform only Step 1 of its quantitative goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount, and then recognizing an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value. The loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. The new guidance does not amend the optional qualitative assessment of goodwill impairment, which Bancorp currently uses. The ASU is effective for fiscal years beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. We anticipate that this ASU will simplify our evaluation of the impairment of goodwill and do not expect it to have a material impact on our financial condition and results of operations.

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Investment Securities

12 Months Ended

Dec. 31, 2016

Investments, Debt and Equity Securities [Abstract]

Investment Securities

Investment Securities

Our investment securities portfolio consists of obligations of state and political subdivisions, corporate bonds, U.S. government agency securities, including mortgage-backed securities (“MBS”) and collateralized mortgage obligations (“CMOs”) issued or guaranteed by Federal National Mortgage Association ("FNMA"), Federal Home Loan Mortgage Corporation ("FHLMC"), or Government National Mortgage Association ("GNMA"), debentures issued by government-sponsored agencies such as FNMA, Federal Farm Credit Bureau, FHLB and FHLMC, as well as privately issued CMOs, as reflected in the table below:

	December 31, 2016									December 31, 2015
	Amortized		Fair		Gross Unrealized					Amortized		Fair		Gross Unrealized
(in thousands)	Cost		Value		Gains		(Losses)			Cost		Value		Gains		(Losses)
Held-to-maturity:
Obligations of state and   political subdivisions	$	30,856	$	31,544	$	694	$	(6	)	$	42,919	$	44,146	$	1,246	$	(19	)
Corporate bonds	3,519		3,518		—		(1		)	15,072		15,098		42		(16		)
MBS pass-through securities issued by FHLMC and FNMA	10,063		10,035		126		(154		)	11,646		11,810		171		(7		)
Total held-to-maturity	44,438		45,097		820		(161		)	69,637		71,054		1,459		(42		)
Available-for-sale:
Securities of U.S. government agencies:
MBS pass-through securities issued by FHLMC and FNMA	193,998		190,566		145		(3,577		)	138,222		138,462		694		(454		)
CMOs issued by FNMA	13,790		13,772		91		(109		)	18,266		18,219		97		(144		)
CMOs issued by FHLMC	43,452		42,758		37		(731		)	22,889		22,932		82		(39		)
CMOs issued by GNMA	6,844		6,945		102		(1		)	10,326		10,480		169		(15		)
Debentures of government- sponsored agencies	35,486		35,403		7		(90		)	161,690		160,892		28		(826		)
Privately issued CMOs	419		419		1		(1		)	3,960		4,150		190		—
Obligations of state and political subdivisions	79,306		77,701		135		(1,740		)	57,110		57,673		580		(17		)
Corporate bonds	4,959		5,016		57		—			4,947		4,979		43		(11		)
Total available-for-sale	378,254		372,580		575		(6,249		)	417,410		417,787		1,883		(1,506		)
Total investment securities	$	422,692	$	417,677	$	1,395	$	(6,410	)	$	487,047	$	488,841	$	3,342	$	(1,548	)

The amortized cost and fair value of investment debt securities by contractual maturity at December 31, 2016 are shown below. Expected maturities may differ from contractual maturities if the issuers of the securities have the right to call or prepay obligations with or without call or prepayment penalties.

	December 31, 2016								December 31, 2015
	Held-to-Maturity				Available-for-Sale				Held-to-Maturity				Available-for-Sale
(in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Within one year	$	13,473	$	13,506	$	20,136	$	20,109	$	18,853	$	18,920	$	12,135	$	12,176
After one but within five years	16,706		17,150		58,334		58,267		31,677		32,360		188,007		187,326
After five years through ten years	3,000		3,125		113,576		110,842		8,580		8,969		64,899		64,999
After ten years	11,259		11,316		186,208		183,362		10,527		10,805		152,369		153,286
Total	$	44,438	$	45,097	$	378,254	$	372,580	$	69,637	$	71,054	$	417,410	$	417,787

Sales of investment securities and gross gains and losses are shown in the following table. The sales of the held-to-maturity securities were due to evidence of significant deterioration of the issuers' creditworthiness since purchase.

(in thousands)	2016			2015			2014
Available-for-sale:
Sales proceeds	$	68,673		$	2,099		$	2,436
Gross realized gains	$	458		$	7		$	4
Gross realized losses	$	(64	)	$	(1	)	$	(28	)
Held-to-maturity:
Sales proceeds	$	1,265		$	1,015		$	2,146
Gross realized gains	$	32		$	73		$	104
Gross realized losses	$	—		$	—		$	—

Investment securities carried at $109.1 million and $87.9 million at December 31, 2016 and 2015, respectively, were pledged with the State of California: $108.3 million million and $87.1 million to secure public deposits in compliance with the Local Agency Security Program at December 31, 2016 and 2015, respectively, and $822 thousand and $840 thousand to provide collateral for trust deposits. In addition, investment securities carried at $2.1 million and $1.1 million were pledged to collateralize a Wealth Management and Trust Services (“WMTS”) checking account at December 31, 2016 and 2015, respectively.

As part of our ongoing review of our investment securities portfolio, we reassessed the classification of certain MBS pass-through and CMOs securities issued by FHLMC and FNMA. Effective February 24, 2017, we transferred $129 million of these securities, which we intend and have the ability to hold to maturity, from available-for-sale securities to held-to-maturity at fair value. The unrealized pre-tax loss of $3.0 million at the date of transfer remained in accumulated other comprehensive income and is amortized over the remaining lives of the securities.

Other-Than-Temporarily Impaired ("OTTI") Debt Securities

We have evaluated the credit of our investment securities and their issuers and/or insurers. Based on our evaluation, Management has determined that no investment security in our investment portfolio is other-than-temporarily impaired as of December 31, 2016. We do not have the intent, and it is more likely than not that we will not have to sell the remaining securities temporarily impaired at December 31, 2016 before recovery of the amortized cost basis.

One hundred thirty-four and fifty-four investment securities were in unrealized loss positions at December 31, 2016and 2015, respectively. Those securities are summarized and classified according to the duration of the loss period in the tables below:

December 31, 2016	< 12 continuous months					≥ 12 continuous months					Total securities  in a loss position
(in thousands)	Fair value		Unrealized loss			Fair value		Unrealized loss			Fair value		Unrealized loss
Held-to-maturity:
MBS pass-through securities issued by FHLMC and FNMA	$	2,250	$	(154	)						$	2,250	$	(154	)
Obligations of state and political subdivisions	3,362		(6		)						3,362		(6		)
Corporate bonds	3,518		(1		)						3,518		(1		)
Total held-to-maturity	9,130		(161		)	—		—			9,130		(161		)
Available-for-sale:
MBS pass-through securities issued by FHLMC and FNMA	162,016		(3,577		)						162,016		(3,577		)
CMOs issued by FNMA	9,498		(109		)						9,498		(109		)
CMOs issued by FHLMC	31,545		(731		)						31,545		(731		)
CMOs issued by GNMA	1,583		(1		)						1,583		(1		)
Debentures of government- sponsored agencies	19,951		(38		)	9,946		(52		)	29,897		(90		)
Obligations of state and political subdivisions	59,567		(1,740		)						59,567		(1,740		)
Privately issued CMO's	154		(1		)						154		(1		)
Total available-for-sale	284,314		(6,197		)	9,946		(52		)	294,260		(6,249		)
Total temporarily impaired securities	$	293,444	$	(6,358	)	$	9,946	$	(52	)	$	303,390	$	(6,410	)

December 31, 2015	< 12 continuous months					> 12 continuous months					Total securities  in a loss position
(in thousands)	Fair value		Unrealized loss			Fair value		Unrealized loss			Fair value		Unrealized loss
Held-to-maturity:
MBS pass-through securities issued by FHLMC and FNMA	$	2,332	$	(7	)	$	—	$	—		$	2,332	$	(7	)
Obligations of state and political subdivisions	8,297		(19		)	—		—			8,297		(19		)
Corporate bonds	3,523		(15		)	1,999		(1		)	5,522		(16		)
Total held-to-maturity	14,152		(41		)	1,999		(1		)	16,151		(42		)
Available-for-sale:
MBS pass-through securities issued by FHLMC and FNMA	68,809		(454		)	—		—			68,809		(454		)
CMOs issued by FNMA	9,277		(80		)	3,158		(64		)	12,435		(144		)
CMOs issued by FHLMC	—		—			1,989		(39		)	1,989		(39		)
CMOs issued by GNMA	164		—			2,374		(15		)	2,538		(15		)
Debentures of government- sponsored agencies	136,064		(713		)	9,887		(113		)	145,951		(826		)
Obligations of state and political subdivisions	4,557		(15		)	579		(2		)	5,136		(17		)
Corporate bonds	2,986		(11		)	—		—			2,986		(11		)
Total available-for-sale	221,857		(1,273		)	17,987		(233		)	239,844		(1,506		)
Total temporarily impaired securities	$	236,009	$	(1,314	)	$	19,986	$	(234	)	$	255,995	$	(1,548	)

As of December 31, 2016, there was one debenture of government-sponsored agency security that had been in a continuous loss position for twelve months or more. We have evaluated it and believe that the decline in fair value is primarily driven by factors other than credit. It is probable that we will be able to collect all amounts due according to the contractual terms as it is supported by the U.S. Federal Government, which protects us from credit losses. Based upon our assessment of the credit fundamentals, we concluded that this security was not other-than-temporarily impaired at December 31, 2016.

One hundred thirty-three investment securities in our portfolio were in a temporary loss position for less than twelve months as of December 31, 2016, and their temporary loss positions mainly arose from changes in interest rates since purchase. They consisted of eighty-six obligations of U.S. state and political subdivisions, one corporate bond, thirty-one MBS securities, thirteen CMOs, one privately issued CMO and one debenture of government-sponsored agencies. The MBS, CMOs and debentures issued by government-sponsored agencies are supported by the U.S. Federal Government, which protects us from credit losses. Other temporarily impaired securities are deemed creditworthy after internal analysis of the issuers' latest financial information and credit enhancement. Additionally, all are rated as investment grade by at least one major rating agency. As a result of this impairment analysis, we concluded that these securities were not other-than-temporarily impaired at December 31, 2016.

Non-Marketable Securities

As a member of the FHLB, we are required to maintain a minimum investment in FHLB capital stock determined by the Board of Directors of the FHLB. The minimum investment requirements can increase in the event we increase our total asset size or borrowings with the FHLB. Shares cannot be purchased or sold except between the FHLB and its members at the $100 per share par value. We held $10.2 million and $8.4 million of FHLB stock recorded at cost in other assets on the consolidated statements of condition at December 31, 2016 and 2015, respectively. The carrying amounts of these investments are reasonable estimates of fair value because the securities are restricted to member banks and they do not have a readily determinable market value. Management does not believe that the FHLB stock is other-than-temporarily-impaired, due to FHLB's current financial position. On February 21, 2017, FHLB announced a cash dividend for the fourth quarter of 2016 at an annualized dividend rate of 9.08%to be distributed in mid-March 2017. Cash dividends paid on FHLB capital stock are recorded as non-interest income.

As a member bank of Visa U.S.A., we hold 16,939 shares of Visa Inc. Class B common stock with a carrying value of zero, which is equal to our cost basis. These shares are restricted from resale until their conversion into Class A (voting) shares upon the termination of Visa Inc.'s Covered Litigation escrow account. As a result of the restriction, these shares are not considered available-for-sale and are not carried at fair value. When converting this Class B common stock to Class A common stock under the conversion rate of 1.6483, as of the latest SEC Form 10-Q filed by Visa, Inc. on February 2, 2017, and the closing stock price of Class A shares, the value of our shares of Class B common stock would have been $2.2 million at both December 31, 2016 and 2015. The conversion rate is subject to further reduction upon the final settlement of the covered litigation against Visa Inc. and its member banks. See Note 12, Commitments and Contingencies herein.

We invest in low income housing tax credit funds as a limited partner, which totaled $2.5 million and $2.7 million recorded in other assets as of December 31, 2016 and 2015, respectively. In 2016, we recognized $297 thousand of low income housing tax credits and other tax benefits, net of $236 thousand of amortization expense of low income housing tax credit investment, as a component of income tax expense. As of December 31, 2016, our unfunded commitments for these low income housing tax credit funds totaled $1.4 million. We did not recognize any impairment losses on these low income housing tax credit investments during 2016 or 2015.

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Loans and Allowance for Loan Losses

12 Months Ended

Dec. 31, 2016

Receivables [Abstract]

Loans and Allowance for Loan Losses

Loans and Allowance for Loan Losses

Credit Quality of Loans

Virtually all of our loans are from customers located in California, primarily in Marin, Alameda, Sonoma, San Francisco and Napa counties. Approximately 85% of total loans were secured by real estate at both December 31, 2016 and 2015. At December 31, 2016, 65% of our loans were for commercial real estate, 83% of which were secured by real estate located in Marin, Sonoma, Alameda, San Francisco and Napa counties (California).

The following table shows outstanding loans by class and payment aging as of December 31, 2016 and 2015.

Loan Aging Analysis by Class
(in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential 1		Installment and other consumer		Total
December 31, 2016
30-59 days past due	$	283	$	—	$	—	$	—	$	77	$	—	$	2	$	362
60-89 days past due	—		—		—		—				—		49		49
90 days or more past due	—		—		—		—		91		—		—		91
Total past due	283		—		—		—		168		—		51		502
Current	218,332		247,713		724,228		74,809		117,039		78,549		25,444		1,486,114
Total loans 3	$	218,615	$	247,713	$	724,228	$	74,809	$	117,207	$	78,549	$	25,495	$	1,486,616
Non-accrual loans 2	$	—	$	—	$	—	$	—	$	91	$	—	$	54	$	145
December 31, 2015
30-59 days past due	$	36	$	—	$	1,096	$	1	$	—	$	—	$	249	$	1,382
60-89 days past due	—		—		—		—		633		—		89		722
90 days or more past due	21		—		—		—		99		—		—		120
Total past due	57		—		1,096		1		732		—		338		2,224
Current	219,395		242,309		714,783		65,494		111,568		73,154		22,301		1,449,004
Total loans 3	$	219,452	$	242,309	$	715,879	$	65,495	$	112,300	$	73,154	$	22,639	$	1,451,228
Non-accrual loans 2	$	21	$	—	$	1,903	$	1	$	171	$	—	$	83	$	2,179

¹ Our residential loan portfolio does not include sub-prime loans, nor is it our practice to underwrite loans commonly referred to as "Alt-A mortgages," the characteristics of which are loans lacking full documentation, borrowers having low FICO scores or higher loan-to-value ratios.

² There were no purchased credit impaired ("PCI") loans that had stopped accreting interest at December 31, 2016. Amounts include $1 thousand of PCI loans that had stopped accreting interest at December 31, 2015. Amounts exclude accreting PCI loans of $2.9 million and $3.7 million at December 31, 2016 and 2015, respectively, as we have a reasonable expectation about future cash flows to be collected and we continue to recognize accretable yield on these loans in interest income. There were no accruing loans past due more than ninety days at December 31, 2016 or 2015.

³ Amounts include net deferred loan origination costs of $883 thousand and $768 thousand at December 31, 2016 and 2015, respectively. Amounts are also net of unaccreted purchase discounts on non-PCI loans of $1.8 million and $3.2 million at December 31, 2016 and 2015, respectively.

Our commercial loans are generally made to established small and mid-sized businesses to provide financing for their growth and working capital needs, equipment purchases and/or acquisitions.  Management examines historical, current, and projected cash flows to determine the ability of the borrower to repay obligations as agreed. Commercial loans are made based primarily on the identified cash flows of the borrower and secondarily on the underlying collateral and/or guarantor support. The cash flows of borrowers, however, may not occur as expected, and the collateral securing these loans may fluctuate in value. Most commercial and industrial loans are secured by the assets being financed, such as accounts receivable and/or inventory, and typically include a personal guarantee. We target stable businesses with guarantors that have proven to be resilient in periods of economic stress.  Typically, the guarantors provide an additional source of repayment for most of our credit extensions.

Commercial real estate loans are subject to underwriting standards and processes similar to commercial loans discussed above. We underwrite these loans to be repaid from cash flow and to be supported by real property collateral. Underwriting standards for commercial real estate loans include, but are not limited to, debt coverage and loan-to-value ratios. Furthermore, substantially all of our loans are guaranteed by the owners of the properties.  Commercial real estate loans may be adversely affected by conditions in the real estate markets or in the general economy. In the event of a vacancy, guarantors are expected to carry the loans until a replacement tenant can be found.  The owner's substantial equity investment provides a strong economic incentive to continue to support the commercial real estate projects. As such, we have generally experienced a relatively low level of loss and delinquencies in this portfolio.

Construction loans are generally made to developers and builders to finance construction, renovation and occasionally land acquisitions in anticipation of near-term development. These loans are underwritten after evaluation of the borrower's financial strength, reputation, prior track record, and independent appraisals. The construction industry can be affected by significant events, including: the inherent volatility of real estate markets and vulnerability to delays due to weather, change orders, inability to obtain construction permits, labor or material shortages, and price changes. Estimates of construction costs and value associated with the completed project may be inaccurate. Repayment of construction loans is largely dependent on the ultimate success of the project.

Consumer loans primarily consist of home equity lines of credit, other residential (tenancy-in-common, or “TIC”) loans, and installment and other consumer loans. We originate consumer loans utilizing credit score information, debt-to-income ratio and loan-to-value ratio analysis. Diversification among loan types, coupled with relatively small loan amounts that are spread across many individual borrowers, mitigates risk. Additionally, trend reports are reviewed by Management on a regular basis. Our residential loan portfolio includes TIC units almost entirely in San Francisco, California. Installment and other consumer loans include mostly loans for floating homes and mobile homes along with a small number of installment loans.

We use a risk rating system to evaluate asset quality, and to identify and monitor credit risk in individual loans, and ultimately in the portfolio. Definitions of loans that are risk graded “Special Mention” or worse are consistent with those used by the Federal Deposit Insurance Corporation ("FDIC").  Our internally assigned grades are as follows:

Pass and Watch: Loans to borrowers of acceptable or better credit quality. Borrowers in this category demonstrate fundamentally sound financial positions, repayment capacity, credit history and management expertise.  Loans in this category must have an identifiable and stable source of repayment and meet the Bank’s policy regarding debt service coverage ratios.  These borrowers are capable of sustaining normal economic, market or operational setbacks without significant financial consequences.  Negative external industry factors are generally not present.  The loan may be secured, unsecured or supported by non-real estate collateral for which the value is more difficult to determine and/or marketability is more uncertain. This category also includes “Watch” loans, where the primary source of repayment has been delayed. “Watch” is intended to be a transitional grade, with either an upgrade or downgrade within a reasonable period.

Special Mention: Potential weaknesses that deserve close attention. If left uncorrected, those potential weaknesses may result in deterioration of the payment prospects for the asset. Special Mention assets do not present sufficient risk to warrant adverse classification.

Substandard: Inadequately protected by either the current sound worth and paying capacity of the obligor or the collateral pledged, if any. A Substandard asset has a well-defined weakness or weaknesses that jeopardize(s) the liquidation of the debt. Substandard assets are characterized by the distinct possibility that we will sustain some loss if such weaknesses or deficiencies are not corrected. Well-defined weaknesses include adverse trends or developments of the borrower’s financial condition, managerial weaknesses and/or significant collateral deficiencies.

Doubtful: Critical weaknesses that make collection or liquidation in full improbable. There may be specific pending events that work to strengthen the asset; however, the amount or timing of the loss may not be determinable. Pending events generally occur within one year of the asset being classified as Doubtful. Examples include: merger, acquisition, or liquidation; capital injection; guarantee; perfecting liens on additional collateral; and refinancing. Such loans are placed on non-accrual status and usually are collateral-dependent.

We regularly review our credits for accuracy of risk grades whenever new information is received. Borrowers are required to submit financial information at regular intervals. Generally, commercial borrowers with lines of credit are required to submit financial information with reporting intervals ranging from monthly to annually depending on credit size, risk and complexity. Investor commercial real estate borrowers are generally required to submit rent rolls or property income statements annually. Construction loans are monitored monthly, and reviewed on an ongoing basis. Home equity and other consumer loans are reviewed based on delinquency. Loans graded “Watch” or worse, regardless of loan type, are reviewed no less than quarterly.

The following table represents an analysis of the carrying amount in loans, net of deferred fees or costs and purchase premiums or discounts, by internally assigned risk grades, including PCI loans, at December 31, 2016 and 2015.

Credit Risk Profile by Internally Assigned Risk Grade
(in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential		Installment and other consumer		Purchased credit-impaired		Total
December 31, 2016
Pass	$	201,987	$	234,849	$	720,417	$	71,564	$	115,680	$	78,549	$	25,083	$	2,920	$	1,451,049
Special Mention	9,197		4,799		607		—		1,334		—		—		—		15,937
Substandard	7,391		6,993		1,498		3,245		91		—		412		—		19,630
Total loans	$	218,575	$	246,641	$	722,522	$	74,809	$	117,105	$	78,549	$	25,495	$	2,920	$	1,486,616
December 31, 2015
Pass	$	192,560	$	219,060	$	710,042	$	62,255	$	109,959	$	73,154	$	22,307	$	3,260	$	1,392,597
Special Mention	22,457		12,371		372		—		1,100		—		—		—		36,300
Substandard	4,260		9,167		3,739		3,239		1,173		—		332		421		22,331
Total loans	$	219,277	$	240,598	$	714,153	$	65,494	$	112,232	$	73,154	$	22,639	$	3,681	$	1,451,228

Troubled Debt Restructuring

Our loan portfolio includes certain loans that have been modified in a troubled debt restructuring (“TDR”), where economic concessions have been granted to borrowers experiencing financial difficulties. These concessions typically result from our loss mitigation activities and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance or other actions. TDRs on non-accrual status at the time of restructure may be returned to accruing status after Management considers the borrower’s sustained repayment performance for a reasonable period, generally six months, and obtains reasonable assurance of repayment and performance.

A loan may no longer be reported as a TDR if all of the following conditions are met:

• The loan is subsequently refinanced or restructured at current market interest rates and the new terms are consistent with the treatment of creditworthy borrowers under regular underwriting standards;

• The borrower is no longer considered to be in financial difficulty;

• Performance on the loan is reasonably assured, and;

• Existing loan did not have any forgiveness of principal or interest.

The removal of TDR status must be approved by the same Management level that approved the upgrading of the loan classification.

There we no loans removed from TDR designation during 2016. During 2015, five loans with a recorded investment totaling $1.6 million were removed from TDR designation, after meeting all of the conditions noted above.

The table below summarizes the carrying amount of TDR loans by loan class as of December 31, 2016 and December 31, 2015. The summary includes both TDRs that are on non-accrual status and those that continue to accrue interest.

(in thousands)	As of
Recorded investment in Troubled Debt Restructurings 1	December 31, 2016		December 31, 2015
Commercial and industrial	$	2,207	$	4,698
Commercial real estate, owner-occupied	6,993		6,993
Commercial real estate, investor	2,256		514
Construction 2	3,245		3,238
Home equity	625		460
Other residential	1,965		2,010
Installment and other consumer	877		1,168
Total	$	18,168	$	19,081

¹ There were no TDR loans on non-accrual status at December 31, 2016 and $72 thousand in TDR loans on non-accrual status as of December 31, 2015. Includes no acquired loans as of December 31, 2016 and $137 thousand in acquired loans at December 31, 2015.

² In 2015, one TDR loan was transferred to loans held-for-sale at fair value totaling $1.5 million, net of an $839 thousand charge-off to the allowance for loan losses. The loan was subsequently sold in 2015 for no additional gain or loss.

The table below presents the following information for loans modified in a TDR during the presented periods: number of contracts modified, the recorded investment in the loans prior to modification, and the recorded investment in the loans after being restructured. The table below excludes fully charged-off TDR loans and loans modified in a TDR and subsequently paid-off during the years presented.

(dollars in thousands)	Number of Contracts Modified	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment at Period End
TDRs modified during 2016:
Commercial real estate, investor	2	$	1,830	$	1,826	$	1,752
Home equity 1	1	$	87	$	222	$	245
Installment and other consumer	1	$	68	$	67	$	66
Total	4	$	1,985	$	2,115	$	2,063
1 The home equity line of credit modified in 2016 included debt consolidation, which increased the post-modification balance.
TDRs modified during 2015:
Commercial and industrial	7	$	3,271	$	3,251	$	2,811
TDRs modified during 2014:
Commercial and industrial	6	$	1,039	$	1,258	$	1,251
Commercial real estate, owner occupied	1	4,226		4,216		4,175
Commercial real estate, investor	2	224		224		220
Construction	2	964		1,312		1,309
Installment and other consumer	6	281		278		268
Total	17	$	6,734	$	7,288	$	7,223

Modifications during 2016, 2015 and 2014 primarily involved maturity or payment extensions and interest rate concessions or some combination thereof. During 2016, 2015 and 2014, there were no defaults on loans that had been modified in a TDR within the prior twelve-month period. We report defaulted TDRs based on a payment default definition of more than ninety days past due.

Impaired Loans

The table below summarizes information by class on impaired loans and their related allowances. Total impaired loans include non-accrual loans, accruing TDR loans and accreting PCI loans that have experienced post-acquisition declines in cash flows expected to be collected.

(in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential		Installment and other consumer		Total
December 31, 2016
Recorded investment in impaired loans:
With no specific allowance recorded	$	315	$	—	$	—	$	2,692	$	91	$	1,008	$	103	$	4,209
With a specific allowance recorded	1,892		6,993		2,256		553		624		957		829		14,104
Total recorded investment in impaired loans	$	2,207	$	6,993	$	2,256	$	3,245	$	715	$	1,965	$	932	$	18,313
Unpaid principal balance of impaired loans	$	2,177	$	6,993	$	2,252	$	3,238	$	713	$	1,965	$	932	$	18,270
Specific allowance	$	285	$	163	$	375	$	8	$	7	$	55	$	98	$	991
Average recorded investment in impaired loans during 2016	$	3,514	$	7,069	$	2,950	$	3,242	$	945	$	1,988	$	1,127	$	20,835
Interest income recognized on impaired loans during 2016 1	$	175	$	199	$	1,514	$	137	$	60	$	90	$	48	$	2,223
December 31, 2015
Recorded investment in impaired loans:
With no specific allowance recorded	$	2,198	$	4,111	$	2,416	$	2,687	$	171	$	1,214	$	131	$	12,928
With a specific allowance recorded	2,522		2,882		—		551		388		797		1,120		8,260
Total recorded investment in impaired loans	$	4,720	$	6,993	$	2,416	$	3,238	$	559	$	2,011	$	1,251	$	21,188
Unpaid principal balance of impaired loans	$	4,763	$	6,993	$	4,408	$	3,424	$	559	$	2,011	$	1,251	$	23,409
Specific allowance	$	912	$	70	$	—	$	1	$	3	$	67	$	116	$	1,169
Average recorded investment in impaired loans during 2015	$	4,237	$	7,886	$	2,833	$	4,164	$	602	$	2,028	$	1,523	$	23,273
Interest income recognized on impaired loans during 2015 1	$	238	$	295	$	33	$	86	$	18	$	92	$	64	$	826
Average recorded investment in impaired loans during 2014	$	5,354	$	6,604	$	3,138	$	6,471	$	741	$	1,744	$	1,857	$	25,909
Interest income recognized on impaired loans during 2014 1	$	378	$	288	$	28	$	85	$	19	$	74	$	76	$	948
1 Interest income recognized on a cash basis totaled $1.4 million in 2016 and was primarily related to the interest recovery upon the pay-off of a partially charged off non-accrual commercial real estate loan during the third quarter. No interest interest income on impaired loans was recognized on a cash basis in 2015 and 2014.

Management monitors delinquent loans continuously and identifies problem loans, generally loans graded substandard or worse, loans on non-accrual status and loans modified in a TDR, to be evaluated individually for impairment testing. Generally, the recorded investment in impaired loans is net of any charge-offs from estimated losses related to specifically-identified impaired loans when they are deemed uncollectible. There were no charged-off portions of impaired loans outstanding at December 31, 2016. The charged-off portion of impaired loans outstanding at December 31, 2015 totaled approximately $2.1 million.  In addition, the recorded investment in impaired loans is net of purchase discounts or premiums on acquired loans and net deferred fees and cost. At December 31, 2016 and 2015, outstanding commitments to extend credit on impaired loans, including performing loans to borrowers whose terms have been modified in TDRs, totaled $1.6 million and $1.3 million, respectively.

The following tables disclose activity in the ALLL and the recorded investment in loans by class, as well as the related ALLL disaggregated by impairment evaluation method.

Allowance for Loan Losses Rollforward for the Period
(in thousands)	Commercial and industrial			Commercial real estate, owner-occupied			Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated		Total
Year ended December 31, 2016
Beginning balance	$	3,023		$	2,249		$	6,178		$	724		$	910		$	394		$	425		$	1,096	$	14,999
Provision (reversal)	93			(476		)	(2,014		)	57			60			60			(75		)	445		(1,850		)
Charge-offs	(11		)	(20		)	—			—			—			—			(5		)	—		(36		)
Recoveries	143			—			2,156			—			3			—			27			—		2,329
Ending balance	$	3,248		$	1,753		$	6,320		$	781		$	973		$	454		$	372		$	1,541	$	15,442
Year ended December 31, 2015
Beginning balance	$	2,837		$	1,924		$	6,672		$	839		$	859		$	433		$	566		$	969	$	15,099
Provision (reversal)	(45		)	325			(517		)	724			48			(39		)	(123		)	127		500
Charge-offs	(5		)	—			—			(839		)	—			—			(20		)	—		(864		)
Recoveries	236			—			23			—			3			—			2			—		264
Ending balance	$	3,023		$	2,249		$	6,178		$	724		$	910		$	394		$	425		$	1,096	$	14,999
Year ended December 31, 2014
Beginning balance	$	3,056		$	2,012		$	6,196		$	633		$	875		$	317		$	629		$	506	$	14,224
Provision (reversal)	(321		)	(93		)	431			314			(19		)	116			(141		)	463		750
Charge-offs	(66		)	—			—			(204		)	—			—			(7		)	—		(277		)
Recoveries	168			5			45			96			3			—			85			—		402
Ending balance	$	2,837		$	1,924		$	6,672		$	839		$	859		$	433		$	566		$	969	$	15,099

Allowance for Loan Losses and Recorded Investment In Loans
(dollars in thousands)	Commercial and industrial			Commercial real estate, owner-occupied			Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated		Total
December 31, 2016
Ending ALLL related to loans collectively evaluated for impairment	$	2,963		$	1,590		$	5,945		$	773		$	966		$	399		$	274		$	1,541	$	14,451
Ending ALLL related to loans  individually evaluated for impairment	285			163			375			8			7			55			98			—		991
Ending ALLL related to purchased  credit-impaired loans	—			—			—			—			—			—			—			—		—
Ending balance	$	3,248		$	1,753		$	6,320		$	781		$	973		$	454		$	372		$	1,541	$	15,442
Recorded Investment:
Collectively evaluated for impairment	$	216,368		$	239,648		$	720,266		$	71,564		$	116,390		$	76,584		$	24,563		$	—	$	1,465,383
Individually evaluated for impairment	2,207			6,993			2,256			3,245			715			1,965			932			—		18,313
Purchased credit-impaired	40			1,072			1,706			—			102			—			—			—		2,920
Total	$	218,615		$	247,713		$	724,228		$	74,809		$	117,207		$	78,549		$	25,495		$	—	$	1,486,616
Ratio of allowance for loan losses to total loans	1.49		%	0.71		%	0.87		%	1.04		%	0.83		%	0.58		%	1.46		%	NM		1.04		%
Allowance for loan losses to non-accrual loans	NM			NM			NM			NM			1,071		%	NM			683		%	NM		10,650		%

NM - Not Meaningful

Allowance for Loan Losses and Recorded Investment In Loans
(dollars in thousands)	Commercial and industrial			Commercial real estate, owner-occupied			Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated		Total
December 31, 2015
Ending ALLL related to loans collectively evaluated for impairment	$	2,111		$	2,179		$	6,178		$	723		$	907		$	327		$	309		$	1,096	$	13,830
Ending ALLL related to loans  individually evaluated for impairment	904			70			—			—			3			67			116			—		1,160
Ending ALLL related to purchased  credit-impaired loans	8			—			—			1			—			—			—			—		9
Ending balance	$	3,023		$	2,249		$	6,178		$	724		$	910		$	394		$	425		$	1,096	$	14,999
Loans outstanding:
Collectively evaluated for impairment	$	214,695		$	233,605		$	711,737		$	62,256		$	111,673		$	71,143		$	21,388		$	—	$	1,426,497
Individually evaluated for impairment1	4,582			6,993			2,416			3,238			559			2,011			1,251			—		21,050
Purchased credit-impaired	175			1,711			1,726			1			68			—			—			—		3,681
Total	$	219,452		$	242,309		$	715,879		$	65,495		$	112,300		$	73,154		$	22,639		$	—	$	1,451,228
Ratio of allowance for loan losses to total loans	1.38		%	0.93		%	0.86		%	1.11		%	0.81		%	0.54		%	1.88		%	NM		1.03		%
Allowance for loan losses to non-accrual loans	14,395		%	NM			325		%	72,400		%	532		%	NM			512		%	NM		688		%

¹ Totals exclude $138 thousand in PCI loans that have experienced credit deterioration post-acquisition, which are included in the "purchased credit-impaired" amount in the next line below.

NM - Not Meaningful

Purchased Credit-Impaired Loans

Acquired loans are considered credit-impaired if there is evidence of significant deterioration of credit quality since origination and it is probable, at the acquisition date, that we will be unable to collect all contractually required payments receivable. Management has determined certain loans purchased in our two bank acquisitions to be PCI loans based on credit indicators such as nonaccrual status, past due status, loan risk grade, loan-to-value ratio, etc. Revolving credit agreements (e.g., home equity lines of credit and revolving commercial loans) are not considered PCI loans as cash flows cannot be reasonably estimated.

The following table reflects the unpaid principal balance and related carrying value of PCI loans:

PCI Loans	December 31, 2016				December 31, 2015
(in thousands)	Unpaid Principal Balance		Carrying Value		Unpaid Principal Balance		Carrying Value
Commercial and industrial	$	45	$	40	$	237	$	175
Commercial real estate, owner occupied	1,344		1,072		2,573		1,711
Commercial real estate, investor	1,713		1,706		1,756		1,726
Construction	—		—		187		1
Home equity	248		102		224		68
Total purchased credit-impaired loans	$	3,350	$	2,920	$	4,977	$	3,681

There were no fluctuations in expected future cash flows on the remaining PCI loans that resulted in changes to the allowance for loan losses during 2016. The specific allowance for PCI loan losses increased by $4 thousandand $3 thousand during2015 and 2014, respectively. Probable and significant increases in expected cash flows would first reverse any related allowance for loan losses and any remaining increases would be recognized prospectively as interest income over the estimated remaining lives of the loans. The specific allowance for PCI loan losses decreased by $6 thousand during 2016 as a result of loan pay-offs. The allowance for loan losses for PCI loans, due to increases in the present value of cash flows expected to be collected, decreased by $2 thousand and $238 thousand during 2015 and 2014, respectively.

The activities in the accretable yield, or income expected to be earned over the remaining lives of the PCI loans were as follows:

Accretable Yield	Years ended
(in thousands)	December 31, 2016			December 31, 2015			December 31, 2014
Balance at beginning of period	$	2,618		$	4,027		$	3,649
Additions	—			—			—
Removals 1	(778		)	(914		)	(273		)
Accretion	(364		)	(495		)	(613		)
Reclassifications from nonaccretable difference 2	—			—			1,264
Balance at end of period	$	1,476		$	2,618		$	4,027
1 Represents the accretable difference that is relieved when a loan exits the PCI population due to payoff, full charge-off, or transfer to repossessed assets, etc.
2 Primarily relates to changes in expected credit performance and changes in expected timing of cash flows.

Pledged Loans

Our FHLB line of credit is secured under terms of a blanket collateral agreement by a pledge of certain qualifying loans with an unpaid principal balance of $869.2 million and $833.8 million at December 31, 2016 and 2015, respectively. In addition, we pledge a certain residential loan portfolio, which totaled $54.6 million and $45.2 million at December 31, 2016 and 2015, respectively, to secure our borrowing capacity with the Federal Reserve Bank (“FRB”). Also see Note 7, Borrowings, below.

Related Party Loans

The Bank has, and expects to have in the future, banking transactions in the ordinary course of its business with directors, officers, principal shareholders and their associates. These transactions, including loans, are granted on substantially the same terms, including interest rates and collateral on loans, as those prevailing at the same time for comparable transactions with persons not related to us. Likewise, these transactions do not involve more than the normal risk of collectability or present other unfavorable features.

An analysis of net loans to related parties for each of the three years ended December 31, 2016, 2015 and 2014 is as follows:

(in thousands)	2016			2015			2014
Balance at beginning of year	$	2,562		$	3,329		$	3,749
Additions	—			—			—
Advances	—			165			—
Repayments	(574		)	(390		)	(420		)
Reclassified as unrelated-party loan due to a change in borrower status	—			(542		)	—
Balance at end of year	$	1,988		$	2,562		$	3,329

Undisbursed commitments to related parties totaled $1.1 million and $1.0 million as of December 31, 2016 and 2015, respectively.

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Bank Premises and Equipment

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Bank Premises and Equipment

Bank Premises and Equipment

A summary of Bank premises and equipment at December 31 follows:

(in thousands)	2016			2015
Leasehold improvements	$	13,883		$	13,615
Furniture and equipment	10,627			9,887
Subtotal	24,510			23,502
Accumulated depreciation and amortization	(15,990		)	(14,197		)
Bank premises and equipment, net	$	8,520		$	9,305

The amount of depreciation and amortization totaled $1.8 million, $2.0 million, and $1.6 million for the years ended December 31, 2016, 2015 and 2014, respectively.

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Bank Owned Life Insurance

12 Months Ended

Dec. 31, 2016

Insurance [Abstract]

Bank Owned Life Insurance

Bank Owned Life Insurance

We own life insurance policies on the lives of certain officers designated by the Board of Directors to finance employee benefit programs, and death benefits provided under the specific terms of these programs are estimated to be $71.0 million at December 31, 2016. The benefits to employees' beneficiaries are limited to the employee's active service period. The investment in bank owned life insurance policies are reported in interest receivable and other assets at their cash surrender value of $32.4 million and $29.5 million at December 31, 2016 and 2015, respectively. The cash surrender value includes both the original premiums paid for the life insurance policies and the accumulated accretion of policy income since inception of the policies. Income of $844 thousand, $814 thousand and $841 thousand was recognized on the life insurance policies in 2016, 2015 and 2014, respectively. We regularly monitor the credit ratings of our insurance carriers to ensure that they are in compliance with our policy.

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Deposits

12 Months Ended

Dec. 31, 2016

Banking and Thrift [Abstract]

Deposits

Deposits

A stratification of time deposits at December 31, 2016 and 2015 is presented in the following table:

(in thousands)	December 31, 2016		December 31, 2015
Time deposits of less than $100 thousand	$	36,346	$	39,534
Time deposits of $100 thousand to $250 thousand	66,092		67,352
Time deposits of more than $250 thousand	49,025		54,571
Total time deposits	$	151,463	$	161,457

Interest on time deposits was $743 thousand, $853 thousand and $917 thousand in 2016, 2015 and 2014, respectively.

Scheduled maturities of time deposits at December 31, 2016 are presented as follows:

(in thousands)	2017		2018		2019		2020		2021		Thereafter		Total
Scheduled maturities of time deposits	$	104,616	$	12,325	$	7,891	$	7,246	$	19,385	$	—	$	151,463

As of December 31, 2016, $36.4 million in securities held-to-maturity and $71.9 million securities available-for-sale were pledged as collateral for our local agency deposits.

Our deposit portfolio includes deposits offered through the Promontory Interfinancial Network that are comprised of Certificate of Deposit Account Registry Service^® ("CDARS") balances included in time deposits and Insured Cash Sweep^® ("ICS") balances included in money market deposits. In addition, in 2016, we began offering deposits through Reich & Tang Deposit Networks, LLC, comprised of Demand Deposit Marketplace^SM ("DDM") balances, mostly in money market deposits. Through these two networks we are able to offer our customers access to FDIC-insured deposit products in aggregate amounts exceeding current insurance limits. When we place funds through CDARS,ICS and DDM, on behalf of a customer, we typically receive matching deposits through the network's reciprocal deposit program. We consider the reciprocal deposits to be in-market deposits as distinguished from traditional out-of-market brokered deposits. We had $15.1 million and $14.3 million in CDARS and $29.0 million and $12.2 million in ICS balances in the reciprocal deposit program at December 31, 2016 and 2015, respectively. In addition, we had $36.4 million in DDM balances in the reciprocal deposit program at December 31, 2016. We also have the ability to place deposits through the networks for which we receive no matching deposits ("one-way" deposits). One-way CDARS deposits totaled $361 thousand and $355 thousand at December 31, 2016 and 2015, respectively.

The aggregate amount of deposit overdrafts that have been reclassified as loan balances was $229 thousand and $84 thousand at December 31, 2016 and 2015, respectively. Collectability of these overdrafts is subject to the same credit review process as other loans.

The Bank accepts deposits from shareholders, directors and employees in the normal course of business, and the terms are comparable to those with non-affiliated parties. The total deposits from directors and their businesses, and executive officers were $7.3 million and $8.3 million at December 31, 2016 and 2015, respectively.

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Borrowings

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Borrowings

Borrowings

Federal Funds Purchased – The Bank had unsecured lines of credit totaling $92.0 million with correspondent banks for overnight borrowings at both December 31, 2016 and 2015.  In general, interest rates on these lines approximate the federal funds target rate. We had no overnight borrowings under these credit facilities at December 31, 2016 and December 31, 2015.

Federal Home Loan Bank Borrowings – As of December 31, 2016 and 2015, the Bank had lines of credit with the FHLB totaling $513.7 million and $470.6 million, respectively, based on eligible collateral of certain loans. At December 31, 2016 there were no FHLB overnight borrowings compared to $52.0 million in FHLB overnight borrowings at a rate of 0.27% at December 31, 2015. On February 5, 2008, the Bank entered into a ten-year borrowing agreement under the same FHLB line of credit for $15.0 million at a fixed rate of 2.07%. On June 15, 2016, the Bank repaid the $15.0 million early and incurred a prepayment fee of $312 thousand recorded in interest expense. At December 31, 2016 and 2015, $513.7 million and $403.4 million, respectively, were remaining as available for borrowing from the FHLB, net of outstanding borrowings and an unused standby letter of credit totaling $241 thousand at December 31, 2015.

Federal Reserve Line of Credit – The Bank has a line of credit with the Federal Reserve Bank of San Francisco ("FRBSF") secured by certain residential loans.  At December 31, 2016 and 2015, the Bank had borrowing capacity under this line totaling $43.1 million and $37.8 million, respectively, and had no outstanding borrowings with the FRBSF.

As part of an acquisition, Bancorp assumed two subordinated debentures due to NorCal Community Bancorp Trusts I and II (the "Trusts"), established for the sole purpose of issuing trust preferred securities on September 22, 2003 and December 29, 2005, respectively. The subordinated debentures were recorded at fair values totaling $4.95 million at acquisition date with contractual values totaling $8.2 million. The difference between the contractual balance and the fair value at acquisition date is accreted into interest expense over the lives of the debentures. Accretion on the subordinated debentures totaled $191 thousand, $210 thousand and $216 thousand in 2016, 2015 and 2014, respectively. Bancorp has the option to defer payment of the interest on the subordinated debentures for a period of up to five years, as long as there is no default on the subordinated debentures. In the event of interest deferral, dividends to Bancorp common stockholders are prohibited. The trust preferred securities were sold and issued in private transactions pursuant to an exemption from registration under the Securities Act of 1933, as amended. Bancorp has guaranteed, on a subordinated basis, distributions and other payments due on trust preferred securities totaling $8.0 million issued by the Trusts which have identical maturity, repricing and payment terms as the subordinated debentures.

The following is a summary of the contractual terms of the subordinated debentures due to the Trusts as of December 31, 2016:

(in thousands)
Subordinated debentures due to NorCal Community Bancorp Trust I on October 7, 2033 with interest payable quarterly, based on 3-month LIBOR plus 3.05%, repricing quarterly (3.93% as of December 31, 2016), redeemable, in whole or in part, on any interest payment date	$	4,124
Subordinated debentures due to NorCal Community Bancorp Trust II on March 15, 2036 with interest payable quarterly, based on 3-month LIBOR plus 1.40%, repricing quarterly (2.36% as of December 31, 2016), redeemable, in whole or in part, on any interest payment date	4,124
Total	$	8,248

Borrowings at December 31, 2016 and 2015 are summarized as follows:

	2016							2015
(dollars in thousands)	Carrying Value		Average Balance		Average Rate			Carrying Value		Average Balance		Average Rate
FHLB overnight borrowings	$	—	$	5,383	0.42	%		$	52,000	$	784	0.38	%
FHLB fixed-rate advances	$	—	$	6,803	6.59	%	1	$	15,000	$	15,000	2.07	%
Subordinated debentures	$	5,586	$	5,493	7.80	%		$	5,395	$	5,288	7.94	%

¹ Amount includes the impact of the $312 thousand prepayment fee in 2016 discussed above.

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Stockholders' Equity and Stock Plans

12 Months Ended

Dec. 31, 2016

Equity [Abstract]

Stockholders' Equity and Stock Plans

Stockholders' Equity and Stock Plans

Warrant

Under the United States Department of the Treasury Capital Purchase Program (the “TCPP”), Bancorp issued to the U.S. Treasury a warrant to purchase 154,242 shares of common stock at a per share exercise price of $27.23. The warrant was immediately exercisable and was subsequently auctioned to two institutional investors in November 2011. The warrant, as adjusted, represented the right to purchase 157,711 shares of common stock at $26.63 per share when it was exercised in September 2015 and the cashless exercise resulted in the issuance of 70,591 shares of common stock.

Share-Based Awards

On May 11, 2010, our shareholders approved the 2010 Director Stock Plan to pay director fees in shares of Bancorp common stock up to 150,000 shares. In 2016, 2015 and 2014, our directors were awarded a total of 4,607, 5,295 and 5,306 common shares, respectively, from the 2010 Director Stock Plan in addition to their cash compensation. As of December 31, 2016, 113,842 shares were available for future grants under this plan.

On May 8, 2007, the 2007 Equity Plan was approved by the Bank shareholders. The 2007 Equity Plan was subsequently adopted by Bancorp as part of the holding company formation. All new share-based awards from the approval date forward are granted through the 2007 Equity Plan.

The 2007 Equity Plan provides financial incentives for selected employees, advisors and non-employee directors. Terms of the plan provide for the issuance of up to 500,000 shares of common stock for these employees, advisors and non-employee directors. As of December 31, 2016, there were 155,750 shares available for future grants under the 2007 Equity Plan. The Compensation Committee of the Board of Directors has the discretion to determine which employees, advisors and non-employee directors will receive an award, the timing of awards, the vesting schedule for each award, the type of award to be granted, the number of shares of Bancorp stock to be subject to each option and restricted stock award, and any other terms and conditions. Restricted or unrestricted whole-share awards are limited to 250,000 of the total shares available under the 2007 Equity Plan.

Effective July 1, 2007, we adopted an Employee Stock Purchase Plan whereby our employees may purchase Bancorp common shares through payroll deductions of between one percent and fifteen percent of pay in each pay period. Shares are purchased quarterly at a five percent discount from the closing market price on the last day of the quarter. The plan calls for 200,000 common shares to be set aside for employee purchases, and there were 192,965 shares available for future grants under the plan as of December 31, 2016.

The inactive 1999 Stock Option Plan covered certain full-time employees and directors who had substantial responsibility for the successful operation of the Bank. Stock options granted pursuant to the 1999 Stock Option Plan were subsequently adopted by Bancorp as part of the holding company formation. Stock options under that plan now relate to shares of common stock of Bancorp. Upon approval of the 2007 Equity Plan, no new awards have been granted under the 1999 Stock Option Plan.

Options are issued at an exercise price equal to the fair value of the stock at the date of grant. Options and restricted stock awarded to officers and employees during 2006 through 2014 vest 20% on each anniversary of the grant date for five years and expire ten years from the grant date. Options granted to non-employee directors prior to 2016 vest 20% immediately and 20% on each anniversary of the grant date for four years and expire seven years from the grant date. All options granted after 2014 for employees and in 2016 for non-employee directors generally vest by one-third on each anniversary of the grant for three years and expire ten years from the grant date.

Beginning in 2015, performance-based stock awards were issued to a selected group of employees. Stock award vesting is contingent upon the achievement of pre-established long-term performance goals set by the Compensation Committee of the Board of Directors. Performance is measured over a three-year period and cliff vested. These performance-based stock awards were granted at a maximum opportunity level, and based on the achievement of the pre-established goals, the actual payouts can range from 0% to 200% of the target award. For performance-based stock awards, an estimate is made of the number of shares expected to vest based on the probability that the performance criteria will be achieved to determine the amount of compensation expense to be recognized. The estimate is re-evaluated quarterly and total compensation expense is adjusted for any change in the current period.

A summary of activity for stock options for the years ended December 31, 2016, 2015 and 2014 is presented below. The intrinsic value of options outstanding and exercisable is calculated as the number of in-the-money options times the difference between the market price of our stock as of each year end presented and the exercise prices of the in-the-money options.

	Number of Shares		Weighted Average Exercise Price		Aggregate Intrinsic Value (in thousands)		Weighted Average Grant-Date Fair Value		Weighted Average Remaining Contractual Term (in years)
Options outstanding at December 31, 2013	220,456		$	32.74	$	2,349			4.05
Granted	26,421		44.83				$	12.04
Cancelled, expired or forfeited	(2,790	)	39.01
Exercised	(49,415	)	29.39		771
Options outstanding at December 31, 2014	194,672		35.14		3,398				4.48
Exercisable (vested) at December 31, 2014	133,153		32.31		2,701				2.88
Options outstanding at December 31, 2014	194,672		35.14		3,398				4.48
Granted	28,320		50.70				12.21
Cancelled, expired or forfeited	(652	)	48.38
Exercised	(37,071	)	30.72		755
Options outstanding at December 31, 2015	185,269		38.35		2,788				5.00
Exercisable (vested) at December 31, 2015	114,581		34.12		2,209				3.21
Options outstanding at December 31, 2015	185,269		38.35		2,788				5.00
Granted	32,637		49.37				10.11
Exercised	(36,117	)	33.98		661
Options outstanding at December 31, 2016	181,789		41.20		5,190				5.77
Exercisable (vested) at December 31, 2016	103,211		36.65		3,416				4.18

The following table shows the number, weighted average exercise price, intrinsic value, and weighted average remaining contractual life of options outstanding, vested and expected to vest as of December 31, 2016.

Number of options	177,122
Weighted average exercise price	$	41.03
Aggregate intrinsic value (in thousands)	$	5,086
Weighted average remaining contractual term (in years)	5.71

The following table summarizes non-vested restricted stock awards and changes during the years ended December 31, 2016, 2015 and 2014.

	Restricted Stock Awards
	Number of Shares		Weighted Average Grant-Date Fair Value
Non-vested awards at December 31, 2013	22,521		$	37.59
Granted	8,523		45.36
Vested	(6,554	)	34.65
Forfeited	(2,067	)	39.32
Non-vested awards at December 31, 2014	22,423		41.25
Granted	15,970		50.75
Vested	(6,555	)	40.00
Forfeited	(450	)	48.45
Non-vested awards at December 31, 2015	31,388		46.24
Granted	16,910		49.65
Vested	(8,599	)	44.14
Non-vested awards at December 31, 2016	39,699		48.15

As of December 31, 2016, there was $1.6 million of total unrecognized compensation expense related to non-vested stock options and restricted stock awards. This cost is expected to be recognized over a weighted-average period of approximately 1.8 years. The total grant-date fair value of stock options vested during the years ended December 31, 2016, 2015 and 2014 was $282 thousand, $202 thousand and $187 thousand, respectively. The total grant-date fair value of restricted stock awards vested during 2016, 2015 and 2014 was $380 thousand, $262 thousand and $227 thousand, respectively.

A summary of the options outstanding and exercisable by price range as of December 31, 2016 is presented in the following table:

	Stock Options Outstanding as of December 31, 2016				Stock Options Exercisable as of December 31, 2016
Range of Exercise Prices	Stock Options Outstanding	Remaining Contractual Life (in years)	Weighted Average Exercise Price		Stock Options Exercisable	Weighted Average Exercise Price
$20.00 - $25.00	13,138	2.3	$	22.25	13,138	$	22.25
$25.01 - $30.00	10,180	1.3	28.75		10,180	28.75
$30.01 - $35.00	9,195	3.3	33.10		9,195	33.10
$35.01 - $40.00	46,588	4.1	37.70		39,038	37.48
$40.01 - $45.00	29,551	5.9	41.95		17,130	41.91
$45.01 - $50.00	45,187	8.7	48.40		5,020	45.88
$50.01 - $55.00	27,950	7.9	50.70		9,510	50.69
	181,789				103,211

The fair value of stock options on the grant date is recorded as a stock-based compensation expense in the consolidated statements of comprehensive income over the requisite service period with a corresponding increase in common stock. Stock-based compensation also includes compensation expense related to the issuance of restricted stock awards pursuant to the 2007 Equity Plan. The grant-date fair value of the restricted stock awards, which equals intrinsic value on that date, is being recorded as compensation expense over the requisite service period. Total compensation cost for these share-based payment arrangements was $994 thousand, $636 thousand and $446 thousand during 2016, 2015 and 2014, respectively, and the total recognized tax benefits related thereto were $318 thousand, $194 thousand and $128 thousand, respectively. In addition, we record excess tax benefits, if any, on the exercise of non-qualified stock options, the disqualifying disposition of incentive stock options and vesting of restricted stock awards as an addition to common stock with a corresponding decrease in current taxes payable. The tax benefit realized from disqualifying dispositions of incentive stock options recognized in the consolidated statements of comprehensive income during 2016, 2015 and 2014 was $70 thousand, $49 thousand and $76 thousand, respectively.

We determine the fair value of stock options at the grant date using the Black-Scholes pricing model that takes into account the stock price at the grant date, the exercise price, and the following assumptions (weighted-average shown).

	Years ended December 31,
	2016		2015		2014
Risk-free interest rate	1.37	%	1.67	%	2.04	%
Expected dividend yield on common stock	2.02	%	1.75	%	1.70	%
Expected life in years	6.0		6.0		6.0
Expected price volatility	25.56	%	28.06	%	30.32	%

Dividends

Presented below is a summary of cash dividends paid to common shareholders, recorded as a reduction of retained earnings. On January 20, 2017, the Board of Directors declared a cash dividend of $0.27 per share, payable on February 10, 2017 to shareholders of record at the close of business on February 3, 2017.

	Years ended December 31,
(in thousands except per share data)	2016		2015		2014
Cash dividends to common stockholders	$	6,223	$	5,390	$	4,733
Cash dividends per common share	$	1.02	$	0.90	$	0.80

The holders of the unvested restricted common stock awards are entitled to dividends on the same per-share ratio as the holders of common stock. Dividends paid on the portion of share-based awards not expected to vest are included in stock-based compensation expense. Tax benefits on dividends paid on the portion of share-based awards expected to vest are recorded as an increase to common stock with a corresponding decrease in current taxes payable.

Under the California Corporations Code, payment of dividends by Bancorp to its shareholders is restricted to the amount of retained earnings immediately prior to the distribution or the amount of assets that exceeds the total liabilities immediately after the distribution. As of December 31, 2016, Bancorp's retained earnings and the amount of assets that exceeds the total liabilities were $146.5 million and $230.6 million, respectively.

Under the California Financial Code, payment of dividends by the Bank to Bancorp is restricted to the lesser of retained earnings or the amount of undistributed net profits of the Bank from the three most recent fiscal years. Under this restriction, approximately $50.8 million of the Bank's retained earnings balance was available for payment of dividends to Bancorp as of December 31, 2016. Bancorp held $3.5 million in cash at December 31, 2016. This cash, combined with the $50.8 million dividends available to be distributed from the Bank, is expected to be adequate to cover Bancorp's estimated operational needs and cash dividends to shareholders for 2017.

Preferred Stock and Shareholder Rights Plan

On July 2, 2007, Bancorp executed a shareholder rights agreement (“Rights Agreement”) designed to discourage takeovers that involve abusive tactics or do not provide fair value to shareholders. The Rights Agreement was amended on June 17, 2016 to reduce the percentage of share ownership defining an "acquiring person" and certain related terms from 15% to 10% of the outstanding common shares. As of December 31, 2016, Bancorp was authorized to issue five million shares of preferred stock with no par value under the Rights Agreement. In the event of a proposed merger, tender offer or other attempt to gain control of Bancorp that the Board of Directors does not approve, it might be possible for the Board of Directors to authorize the issuance of shares of common or preferred stock that would impede the completion of such a transaction. An effect of the possible issuance of common or preferred stock, therefore, may be to deter a future takeover attempt. The Board of Directors has no present plans or understandings for the issuance of any common or preferred stock in connection with the Rights Agreement.

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Fair Value of Assets and Liabilities

12 Months Ended

Dec. 31, 2016

Fair Value Disclosures [Abstract]

Fair Value of Assets and Liabilities

Fair Value of Assets and Liabilities

Fair Value Hierarchy and Fair Value Measurement

We group our assets and liabilities that are measured at fair value in three levels within the fair value hierarchy, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. These levels are:

Level 1: Valuations are based on unadjusted quoted prices in active markets for identical assets or liabilities.

Level 2: Valuations are based on quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-based valuations for which all significant assumptions are observable or can be corroborated by observable market data.

Level 3: Valuations are based on unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Values are determined using pricing models and discounted cash flow models and may include significant Management judgment and estimation.

Transfers between levels of the fair value hierarchy are recognized through our monthly and/or quarterly valuation process in the reporting period during which the event or circumstances that caused the transfer occurred.

The following table summarizes our assets and liabilities that were required to be recorded at fair value on a recurring basis.

(in thousands) Description of Financial Instruments	Carrying Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
December 31, 2016
Securities available for sale:
Mortgage-backed securities and collaterized mortgage obligations issued by U.S. government agencies	$	254,041	$	—	$	253,434	$	607
Debentures of government sponsored agencies	$	35,403	$	—	$	35,403	$	—
Privately-issued collateralized mortgage obligations	$	419	$	—	$	419	$	—
Obligations of state and political subdivisions	$	77,701	$	—	$	77,701	$	—
Corporate bonds	$	5,016	$	—	$	5,016	$	—
Derivative financial assets (interest rate contracts)	$	55	$	—	$	55	$	—
Derivative financial liabilities (interest rate contracts)	$	933	$	—	$	933	$	—
December 31, 2015
Securities available for sale:
Mortgage-backed securities and collaterized mortgage obligations issued by U.S. government agencies	$	190,093	$	—	$	188,381	$	1,712
Debentures of government sponsored agencies	$	160,892	$	—	$	160,892	$	—
Privately-issued collateralized mortgage obligations	$	4,150	$	—	$	4,150	$	—
Obligations of state and political subdivisions	$	57,673	$	—	$	57,673	$	—
Corporate bonds	$	4,979	$	—	$	4,979	$	—
Derivative financial assets (interest rate contracts)	$	3	$	—	$	3	$	—
Derivative financial liabilities (interest rate contracts)	$	1,658	$	—	$	1,658	$	—

Securities available-for-sale are recorded at fair value on a recurring basis. When available, quoted market prices (Level 1) are used to determine the fair value of securities available-for-sale. If quoted market prices are not available, we obtain pricing information from a reputable third-party service provider, who may utilize valuation techniques that use current market-based or independently sourced parameters, such as bid/ask prices, dealer-quoted prices, interest rates, benchmark yield curves, prepayment speeds, probability of default, loss severity and credit spreads (Level 2).   Level 2 securities include obligations of state and political subdivisions, U.S. agencies or government-sponsored agencies' debt securities, mortgage-backed securities, government agency-issued, privately-issued collateralized mortgage obligations and corporate bonds. As of December 31, 2016 and 2015, there were no securities that were considered Level 1 securities. As of December 31, 2016, we have one available-for-sale security that is considered a Level 3 security. The security is a U.S. government agency obligation collateralized by a small number of business equipment loans guaranteed by the Small Business Administration ("SBA") program. This security is not actively traded and is owned only by a few investors. The significant unobservable data that is reflected in the fair value measurement include dealer quotes, projected prepayment speeds/average life and credit information, among other things. The decrease in fair value during 2016 was due to the pay-off of one of the larger loans in the pool collateralizing the security. The unrealized gain or loss on this SBA-guaranteed security decreased by $15 thousand in the same period recorded as part of other comprehensive income.

Securities held-to-maturity may be written down to fair value (determined using the same techniques discussed above for securities available-for-sale) as a result of an other-than-temporary impairment, and we did not record any write-downs during 2016 or 2015.

On a recurring basis, derivative financial instruments are recorded at fair value, which is based on the income approach using observable Level 2 market inputs, reflecting market expectations of future interest rates as of the measurement date.  Standard valuation techniques are used to calculate the present value of the future expected cash flows assuming an orderly transaction.  Valuation adjustments may be made to reflect both our own credit risk and the counterparties’ credit risk in determining the fair value of the derivatives. Level 2 inputs for the valuations are limited to observable market prices for London Interbank Offered Rate (“LIBOR”) and Overnight Index Swap ("OIS") rates (for the very short term), quoted prices for LIBOR futures contracts, observable market prices for LIBOR and OIS swap rates, and one-month and three-month LIBOR basis spreads at commonly quoted intervals. Mid-market pricing of the inputs is used as a practical expedient in the fair value measurements. We project spot rates at reset days specified by each swap contract to determine future cash flows, then discount to present value using either LIBOR or OIS curves depending on whether the swap positions are fully collateralized as of the measurement date. When the value of any collateral placed with counterparties is less than the interest rate derivative liability, a credit valuation adjustment ("CVA") is applied to reflect the credit risk we pose to counterparties. We have used the spread between the Standard & Poor's BBB rated U.S. Bank Composite rate and LIBOR for the closest maturity term corresponding to the duration of the swaps to derive the CVA. A similar credit risk adjustment, correlated to the credit standing of the counterparty, is made when collateral posted by the counterparty does not fully cover their liability to the Bank. For further discussion on our methodology in valuing our derivative financial instruments, refer to Note 14, Derivative Financial Instruments and Hedging Activities.

Certain financial assets may be measured at fair value on a non-recurring basis. These assets are subject to fair value adjustments that result from the application of the lower of cost or fair value accounting or write-downs of individual assets, such as impaired loans and other real estate owned ("OREO").

The following table presents the carrying value of assets and liabilities measured at fair value on a non-recurring basis and that were held in the consolidated statements of condition at each respective period end, by level within the fair value hierarchy as of December 31, 2016 and 2015.

(in thousands) Description of Financial Instruments	Carrying Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs  (Level 3)
December 31, 2016
Other real estate	$	408	$	—	$	—	$	408
December 31, 2015
Other real estate	$	421	$	—	$	—	$	421

When a loan is identified as impaired, it is reported at the lower of cost or fair value, measured based on the loan's observable market price (Level 1) or the current net realizable value of the underlying collateral securing the loan, if the loan is collateral dependent (Level 3).  Net realizable value of the underlying collateral is the fair value of the collateral less estimated selling costs and any prior liens. Appraisals, recent comparable sales, offers and listing prices are factored in when valuing the collateral. We review and verify the qualifications and licenses of the certified general appraisers used for appraising commercial properties or certified residential appraisers for residential properties. Real estate appraisals may utilize a combination of approaches including replacement cost, sales comparison and the income approach. Comparable sales and income data are analyzed by the appraisers and adjusted to reflect differences between them and the subject property such as property characteristics, leasing status and physical condition. When appraisals are received, Management reviews the underlying assumptions and methodology utilized, as well as the overall resulting value in conjunction with independent data sources such as recent market data and industry-wide statistics. We generally use a 6% discount for selling costs which is applied to all properties, regardless of size. Appraised values may be adjusted to reflect changes in market conditions that have occurred subsequent to the appraisal date, or for revised estimates regarding the timing or cost of the property sale. These adjustments are based on qualitative judgments made by Management on a case-by-case basis and are generally unobservable valuation inputs as they are specific to the underlying collateral. There have been no significant changes in the valuation techniques during 2016.

OREO represents collateral acquired through foreclosure and is initially recorded at fair value as established by a current appraisal, adjusted for disposition costs. Subsequently, OREO is measured at lower of cost or fair value. OREO values are reviewed on an ongoing basis and any subsequent decline in fair value is recorded as a foreclosed asset expense in the current period. The value of OREO is determined based on independent appraisals, similar to the process used for impaired loans, discussed above, and is classified as Level 3. All OREO resulted from an acquisition. Decreases in the estimated fair value of OREO totaled $13 thousand and $40 thousand during 2016 and 2015, respectively.

Disclosures about Fair Value of Financial Instruments

The table below is a summary of fair value estimates for financial instruments as of December 31, 2016 and 2015, excluding financial instruments recorded at fair value on a recurring basis (summarized in the first table in this note). The carrying amounts in the following table are recorded in the consolidated statements of condition under the indicated captions. Further, we have not disclosed the fair value of financial instruments specifically excluded from disclosure requirements of the Financial Instruments Topic of the Codification (ASC 825-10-50-8), such as BOLI. Additionally, we hold shares of FHLB stock and Visa Inc. Class B common stock at cost. These shares are restricted from resale and their values were discussed in Note 2, Investment Securities, above.

	December 31, 2016					December 31, 2015
(in thousands)	Carrying Amounts		Fair Value		Fair Value Hierarchy	Carrying Amounts		Fair Value		Fair Value Hierarchy
Financial assets:
Cash and cash equivalents	$	48,804	$	48,804	Level 1	$	26,343	$	26,343	Level 1
Investment securities held-to-maturity	44,438		45,097		Level 2	69,637		71,054		Level 2
Loans, net	1,471,174		1,473,360		Level 3	1,436,229		1,470,380		Level 3
Interest receivable	6,319		6,319		Level 2	6,643		6,643		Level 2
Financial liabilities:
Deposits	1,772,700		1,773,102		Level 2	1,728,226		1,728,717		Level 2
Federal Home Loan Bank borrowing	—		—		Level 2	67,000		67,279		Level 2
Subordinated debentures	5,586		5,083		Level 3	5,395		5,132		Level 3
Interest payable	134		134		Level 2	187		187		Level 2

Following is a description of methods and assumptions used to estimate the fair value of each class of financial instrument not recorded at fair value but required for disclosure purposes:

Cash and Cash Equivalents - The carrying amounts of cash and cash equivalents approximate their fair value because of the short-term nature of these instruments.

Held-to-maturity Securities - Held-to-maturity securities, which generally consist of obligations of state and political subdivisions and corporate bonds, are recorded at their amortized cost. Their fair value for disclosure purposes is determined using methodologies similar to those described above for available-for-sale securities using Level 2 inputs. If Level 2 inputs are not available, we may utilize pricing models that incorporate unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities (Level 3).  As of December 31, 2016 and 2015, we did not hold any held-to-maturity securities whose fair value was measured using significant unobservable inputs.

Loans - The fair value of loans with variable interest rates approximates their current carrying value, because their rates are regularly adjusted to current market rates. The fair value of fixed rate loans or variable loans at negotiated interest rate floors or ceilings with remaining maturities in excess of one year is estimated by discounting the future cash flows using current market rates at which similar loans would be made to borrowers with similar creditworthiness and similar remaining maturities. The allowance for loan losses (“ALLL”) is considered to be a reasonable estimate of the portion of loan discount attributable to credit risks.

Interest Receivable and Payable - The interest receivable and payable balances approximate their fair value due to the short-term nature of their settlement dates.

Deposits - The fair value of deposits without stated maturity, such as transaction accounts, savings accounts and money market accounts, is the amount payable on demand at the reporting date. The fair value of time deposits is estimated by discounting the future cash flows using current rates offered for deposits of similar remaining maturities.

Federal Home Loan Bank Borrowing - The fair value is estimated by discounting the future cash flows using current rates offered by the Federal Home Loan Bank of San Francisco ("FHLB") for similar credit advances corresponding to the remaining term of our fixed-rate credit advances.

Subordinated Debentures - The fair values of the subordinated debentures were estimated by discounting the future cash flows (interest payment at a rate of three-month LIBOR plus 3.05% and 1.40%) to their present values using current market rates at which similar bonds would be issued with similar credit ratings as ours and similar remaining maturities. Each interest payment was discounted at the spot rate of the corresponding term, determined based on the yields and terms of comparable trust preferred securities, plus a liquidity premium. In July 2010, the Dodd-Frank Act was signed into law and limits the ability of certain bank holding companies to treat trust preferred security debt issuances as Tier 1 capital. This law effectively closed the trust-preferred securities markets for new issuances and led to the absence of observable or comparable transactions in the market place. Due to the use of unobservable inputs of trust preferred securities, we consider the fair value to be a Level 3 measurement. See Note 7, Borrowings for further information.

Commitments - The value of unrecognized financial instruments is estimated based on the fee income associated with the commitments which, in the absence of credit exposure, is considered to approximate their settlement value. The fair value of commitment fees was not material as of December 31, 2016 and 2015, respectively.

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Benefit Plans

12 Months Ended

Dec. 31, 2016

Compensation and Retirement Disclosure [Abstract]

Benefit Plans

Benefit Plans

In 2003, we established a Deferred Compensation Plan that allows certain key Management personnel designated by the Board of Directors of the Bank to defer up to 80% of their salary and 100% of their annual bonus. The plan was amended in 2007 in order to comply with the most recent Internal Revenue Code Section 409A changes. Under the amended plan, amounts deferred earn interest that is equal to the prime rate as published in the Wall Street Journal, on the first business day of the year, which was 3.5% on January 1, 2016, and 3.25% on both January 1, 2015 and 2014. Our deferred compensation obligation totaled $3.2 millionand$3.0 million at December 31, 2016 and 2015, respectively, and is included in interest payable and other liabilities.

Our 401(k) Defined Contribution Plan (the “401(k) Plan”) commenced in May 1990 and is available to all regular employees at least eighteen years of age who complete ninety days of service, and enter the plan during one of the four open enrollment dates (January 1, April 1, July 1, and October 1) of each year. Under the 401(k) Plan, employees can defer between 1% and 50% of their eligible compensation, up to the maximum amount allowed by the Internal Revenue Code. Contributions to the 401(k) Plan for the employer match are vested at a rate of 20% per year over a five year period. The Bank matched 50% of each participant's contribution prior to 2013 at which time the Bank increased the match to 60%, with a maximum of $4 thousand annually. Employer contributions totaled $589 thousand, $555 thousand and $548 thousand for the years ended December 31, 2016, 2015 and 2014, respectively.

In 1999, the 401(k) Plan was amended to include an employee stock ownership component and was renamed the Bank of Marin Employee Stock Ownership and Savings Plan (the “Plan”). Under the terms of the Plan, as amended, the Board of Directors determines a specific portion of the Bank's profits to be contributed to the employee stock ownership each year either in common stock or in cash for the purchase of Bancorp stock to be allocated to all eligible employees based on a percentage of their salaries, regardless of whether an employee is participating in the 401(k) plan or not. In January 2010, the Bank of Marin Employee Stock Ownership and Savings Plan was split into two plans: Bank of Marin 401(k) Plan and Bank of Marin Employee Stock Ownership Plan ("ESOP"). The same eligibility criteria apply under the ESOP, while employees' contributions are not permitted. For all participants, employer contributions vest over a five year period of service. After five years of service, all employer contributions vest immediately. The Bank of Marin 401(k) Plan was amended in early 2016 to incorporate recent changes in the pension laws, and was amended again in November 2016 to include a Roth 401(k) option.

The Bank contributed cash in the amount of $1.2 million, $1.1 million and $1.2 million in 2016, 2015 and 2014, respectively, to the ESOP, which purchased Bancorp stock at market prices. Cash dividends paid on Bancorpstock held by the ESOP are used to purchase additional shares in the open market.All shares of Bancorp stock held by the ESOP are included in the calculations of basic and diluted earnings per share. The employer contributions to the ESOP and the 401(k) Plan are included in salaries and benefits expense.

On January 1, 2011, we established a Salary Continuation Plan for a select group of Executive Management, who will receive twenty-five percent of their estimated salary at retirement as salary continuation benefit payments upon retirement.  Each participant will need to participate in this plan for five years before vesting begins. After five years, the participant will vest ratably in the benefit over the remaining period until age 65. This Plan is unfunded and nonqualified for tax purposes and for purposes of Title I of the Employee Retirement Income Security Act of 1974. At December 31, 2016 and 2015, respectively, our liability under the Salary Continuation Plan was $1.0 million and $823 thousand recorded in interest payable and other liabilities.

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Income Taxes

12 Months Ended

Dec. 31, 2016

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The current and deferred components of the income tax provision for each of the three years ended December 31 are as follows:

(in thousands)	2016			2015		2014
Current tax provision
Federal	$	9,710		$	7,097	$	8,523
State	3,794			2,931		3,195
Total current	13,504			10,028		11,718
Deferred tax provision (benefit)
Federal	(206		)	382		(146		)
State	48			80		126
Total deferred	(158		)	462		(20		)
Total income tax provision	$	13,346		$	10,490	$	11,698

The following table shows the tax effect of our cumulative temporary differences as of December 31:

(in thousands)	2016			2015
Deferred tax assets:
Allowance for loan losses and off-balance sheet credit commitments	$	6,871		$	5,918
Net operating loss carryforwards	3,582			4,090
Net unrealized loss on securities available-for-sale	2,543			59
Deferred compensation plan and salary continuation plan	1,773			1,619
State franchise tax	1,300			1,005
Accrued but unpaid expenses	1,251			1,188
Fair value adjustment on acquired loans	799			1,197
Deferred rent and other lease incentives	547			595
Depreciation and disposals on premises and equipment	528			231
Other real estate owned	448			448
Stock-based compensation	398			273
Interest received on non-accrual loans	185			864
Other	196			381
Total gross deferred tax assets	20,421			17,868
Deferred tax liabilities:
Deferred loan origination costs and fees	(2,784		)	(2,567		)
Unaccreted discount on subordinated debentures	(1,119		)	(1,200		)
Core deposit intangible asset	(1,085		)	(1,309		)
Accretion on investment securities	(54		)	(55		)
Other	(42		)	(42		)
Total gross deferred tax liabilities	(5,084		)	(5,173		)
Net deferred tax assets	$	15,337		$	12,695

As of December 31, 2016, federal and California net operating loss carryforwards ("NOLs") of $6.3 million and $19.3 million, respectively, corresponded to the total $3.6 million deferred tax asset above. If not fully utilized, the federal NOLs will begin to expire in 2029, and the California NOLs will begin to expire in 2028. Based upon the level of historical taxable income and projections for future taxable income over the periods during which the deferred tax assets are expected to be deductible, Management believes it is more likely than not we will realize the benefit of the remaining deferred tax assets. Accordingly, no valuation allowance has been established as of December 31, 2016 or 2015.

The effective tax rate for 2016, 2015 and 2014 differs from the current federal statutory income tax rate as follows:

	2016		2015		2014
Federal statutory income tax rate	35.0	%	35.0	%	35.0	%
Increase (decrease) due to:
California franchise tax, net of federal tax benefit	6.8	%	6.8	%	6.8	%
Tax exempt interest on municipal securities and loans	(4.0	)%	(4.2	)%	(3.3	)%
Tax exempt earnings on bank owned life insurance	(0.8	)%	(1.0	)%	(0.9	)%
Low income housing and qualified zone academy bond tax credits	(0.3	)%	(0.2	)%	(0.1	)%
Other	(0.1	)%	(0.1	)%	(0.3	)%
Effective Tax Rate	36.6	%	36.3	%	37.2	%

Bancorp and the Bank have entered into a tax allocation agreement which provides that income taxes shall be allocated between the parties on a separate entity basis. The intent of this agreement is that each member of the consolidated group will incur no greater tax liability than it would have incurred on a stand-alone basis.

We file a consolidated return in the U.S. Federal tax jurisdiction and a combined return in the State of California tax jurisdiction. There were no ongoing federal or state income tax examinations at the issuance of this report. We are no longer subject to examinations by tax authorities for years before 2013 for federal income tax and before 2012 for California. At December 31, 2016 and 2015, there were no unrecognized tax benefits, and neither the Bank nor Bancorp had accruals for interest and penalties related to unrecognized tax benefits.

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Commitments and Contingencies

12 Months Ended

Dec. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

We rent certain premises under long-term, non-cancelable operating leases expiring at various dates through the year 2032. Most of the leases contain certain renewal options and escalation clauses. At December 31, 2016, the approximate minimum future commitments payable under non-cancelable contracts for leased premises are as follows:

(in thousands)	2017		2018		2019		2020		2021		Thereafter		Total
Operating leases1	$	3,850	$	3,919	$	3,725	$	3,405	$	2,114	$	4,069	$	21,082

¹ Minimum payments have not been reduced by minimum sublease rentals of $151 thousand due in the future under non-cancelable subleases.

Rent expense included in occupancy expense totaled $3.9 million in 2016 and $4.2 million in 2015 and 2014, respectively.

Litigation Matters

We may be party to legal actions which arise from time to time as part of the normal course of our business.  We believe, after consultation with legal counsel, that we have meritorious defenses in these actions, and that litigation contingent liability, if any, will not have a material adverse effect on our financial position, results of operations, or cash flows.

We are responsible for our proportionate share of certain litigation indemnifications provided to Visa U.S.A. ("Visa") by its member banks in connection with lawsuits related to anti-trust charges and interchange fees ("Covered Litigation"). Visa maintains an escrow account from which settlements of, or judgments in, the Covered Litigation are paid. While the accrual related to the Covered Litigation could be higher or lower than the litigation escrow account balance, Visa did not record an additional accrual for the Covered Litigation during 2016. At December 31, 2016, according to the latest SEC Form 10-Q filed by Visa, Inc. on February 2, 2017, the balance of the escrow account was $1.0 billion. Visa had reached a $4.0 billion interchange multidistrict litigation class settlement agreement. However, a number of objectors have appealed and on June 30, 2016, an appellate court reversed the approval of the settlement by the lower court. Until the appeal process is complete, Visa is uncertain whether it will resolve the claims as contemplated by the settlement agreement and additional lawsuits may arise. The conversion rate of Visa Class B common stock held by us to Class A common stock (as discussed in Note 2, Investment Securities) may decrease if Visa makes more Covered Litigation settlement payments in the future, and the full effect on member banks is still uncertain. However, we are not aware of significant future cash settlement payments required by us on the Covered Litigation.

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Concentrations of Credit Risk

12 Months Ended

Dec. 31, 2016

Risks and Uncertainties [Abstract]

Concentrations of Credit Risk

Concentrations of Credit Risk

Concentration of credit risk is the risk associated with a lack of diversification, such as having substantial investments in a few individual issuers, thereby exposing us to greater risks resulting from adverse economic, political, regulatory, geographic, industrial or credit developments. Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash and cash equivalents, investment securities and loans.

Our cash in correspondent bank accounts, at times, may exceed FDIC insured limits. We place cash and cash equivalents with high quality financial institutions, periodically monitor their credit worthiness and limit the amount of credit exposure with any one institution according to regulations. Concentrations of credit risk with respect to investment securities are limited to the U.S. Government, its agencies and Government Sponsored Enterprises ("GSEs") and was $299.5 million, or 72% of our total investment portfolio at December 31, 2016 and $362.6 million, or 74.4% at December 31, 2015.

We also manage our credit exposure related to our loan portfolio to avoid the risk of undue concentration of credits in a particular industry by reducing significant exposure to highly leveraged transactions or to any individual customer or counterparty, and by obtaining collateral as appropriate. No individual borrower accounts for more than 5% of loans held in the portfolio. The largest loan concentration group by industry of the borrowers is real estate, which accounts for 79% and 80% of our loan portfolio at December 31, 2016 and 2015, respectively.

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Derivative Financial Instruments and Hedging Activities

12 Months Ended

Dec. 31, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments and Hedging Activities

Derivative Financial Instruments and Hedging Activities

We have entered into interest rate swap agreements, primarily as an asset/liability management strategy, in order to mitigate the changes in the fair value of specified long-term fixed-rate loans (or firm commitments to enter into long-term fixed-rate loans) caused by changes in interest rates. These hedges allow us to offer long-term fixed rate loans to customers without assuming the interest rate risk of a long-term asset. Converting our fixed-rate interest payments to floating-rate interest payments, generally benchmarked to the one-month U.S. dollar LIBOR index, protects us against changes in the fair value of our loans associated with fluctuating interest rates.

Our credit exposure, if any, on interest rate swap asset positions is limited to the fair value (net of any collateral pledged to us) and interest payments of all swaps by each counterparty. Conversely, when an interest rate swap is in a liability position exceeding a certain threshold, we may be required to post collateral to the counterparty in an amount determined by the agreements. Collateral levels are monitored and adjusted on a regular basis for changes in interest rate swap values.

As of December 31, 2016, we had five interest rate swap agreements, which are scheduled to mature in June 2031, October 2031, July 2032, August 2037 and October 2037. All of our derivatives are accounted for as fair value hedges. The notional amounts of the interest rate contracts are equal to the notional amounts of the hedged loans. In September 2016 and April 2016, respectively, one interest rate swap scheduled to mature in August 2020 and another one scheduled to mature in June 2020 were terminated as the hedged loans were paid off. In both cases, prepayment fees were collected from the borrowers to settle the interest rate swap liability, resulting in no net gain or loss on the terminations of the swaps and loan pay-offs. Our interest rate swap payments are settled monthly with counterparties. Accrued interest on the swaps totaled $13 thousand and $28 thousand as of December 31, 2016 and 2015, respectively. Information on our derivatives follows:

	Asset derivatives				Liability derivatives
(in thousands)	December 31, 2016		December 31, 2015		December 31, 2016		December 31, 2015
Fair value hedges:
Interest rate contracts notional amount	$	4,217	$	4,407	$	15,495	$	22,187
Interest rate contracts fair value 1	$	55	$	3	$	933	$	1,658

	Years ended December 31,
(in thousands)	2016			2015			2014
Increase (decrease) in value of designated interest rate swaps due to LIBOR interest rate movements recognized in interest income	$	778		$	280		$	(377	)
Payment on interest rate swaps recorded in interest income	(556		)	(918		)	(1,002		)
(Decrease) increase in value of hedged loans recognized in interest income	(571		)	(308		)	662
Decrease in value of yield maintenance agreement recognized against interest income	(94		)	(52		)	(91		)
Net loss on derivatives recognized against interest income 2	$	(443	)	$	(998	)	$	(808	)

¹ See Note 9, Fair Value of Assets and Liabilities for valuation methodology.

² Includes hedge ineffectiveness gain of $113 thousand, loss of $80 thousandand gain of $194 thousand for the years December 31, 2016, 2015 and 2014, respectively. Changes in value of swaps were included in the assessment of hedge effectiveness. Hedge ineffectiveness is the measure of the extent to which the change in the fair value of the hedging instruments does not exactly offset the change in the fair value of the hedged items from period to period.

Our derivative transactions with counterparties are under International Swaps and Derivative Association (“ISDA”) master agreements that include “right of set-off” provisions. “Right of set-off” provisions are legally enforceable rights to offset recognized amounts and there may be an intention to settle such amounts on a net basis. We do not offset such financial instruments for financial reporting purposes.

Information on financial instruments that are eligible for offset in the consolidated statements of condition follows:

Offsetting of Financial Assets and Derivative Assets
							Gross Amounts Not Offset in the Statements of Condition
			Gross Amounts		Net Amounts
	Gross Amounts		Offset in the		of Assets Presented
	of Recognized		Statements of		in the Statements		Financial			Cash Collateral
(in thousands)	Assets1		Condition		of Condition1		Instruments			Received		Net Amount
December 31, 2016
Derivatives by Counterparty:
Counterparty A	$	55			$	55	$	(55	)			$	—
Total	$	55	$	—	$	55	$	(55	)	$	—	$	—
December 31, 2015
Derivatives by Counterparty:
Counterparty A	$	3	$	—	$	3	$	(3	)	$	—	$	—
Total	$	3	$	—	$	3	$	(3	)	$	—	$	—

¹ Amounts exclude accrued interest totaling $1 thousand at both December 31, 2016 and December 31, 2015, respectively.

Offsetting of Financial Liabilities and Derivative Liabilities
							Gross Amounts Not Offset in the Statements of Condition
			Gross Amounts		Net Amounts of
	Gross Amounts		Offset in the		Liabilities Presented
	of Recognized		Statements of		in the Statements of		Financial			Cash Collateral
(in thousands)	Liabilities2		Condition		Condition2		Instruments			Pledged			Net Amount
December 31, 2016
Derivatives by Counterparty:
Counterparty A	$	933			$	933	$	(55	)	(878		)	$	—
Total	$	933	$	—	$	933	$	(55	)	$	(878	)	$	—
December 31, 2015
Derivatives by Counterparty:
Counterparty A	$	1,390	$	—	$	1,390	$	(3	)	$	(1,387	)	$	—
Counterparty B	268		—		268		—			(268		)	—
Total	$	1,658	$	—	$	1,658	$	(3	)	$	(1,655	)	$	—

² Amounts exclude accrued interest totaling $12 thousand and $27 thousand at December 31, 2016 and December 31, 2015, respectively.

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Regulatory Matters

12 Months Ended

Dec. 31, 2016

Banking and Thrift [Abstract]

Regulatory Matters

Regulatory Matters

We are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements as set forth in the tables below can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a material effect on our consolidated financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, we must meet specific capital guidelines that involve quantitative measures of our assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. The capital amounts and the Bank’s prompt corrective action classification are also subject to qualitative judgments by the regulators about components of capital, risk weightings and other factors.

Capital ratios are reviewed by Management on a regular basis to ensure that capital exceeds the prescribed regulatory minimums and is adequate to meet our anticipated future needs.  For all periods presented, the Bank’s ratios exceed the regulatory definition of “well capitalized” under the regulatory framework for prompt corrective action and Bancorp’s ratios exceed the required minimum ratios to be considered a well capitalized bank holding company. In addition, the most recent notification from the FDIC categorized the Bank as well capitalized under the regulatory framework for prompt corrective action as of December 31, 2016. There are no conditions or events since that notification that Management believes have changed the Bank’s categories and we expect the Bank to remain well capitalized for prompt corrective action purposes.

In July 2013, the Board of Governors of the Federal Reserve, the FDIC and the Office of the Comptroller of the Currency, finalized regulatory capital rules known as “Basel III.” The rules became effective beginning January 2015, and will be fully phased-in by January 2019. The guidelines, among other things, changed the minimum capital requirements of banks and bank holding companies, by increasing the Tier 1 capital to risk-weighted assets ratio to 6%, and introduced a new requirement to maintain a minimum ratio of common equity Tier 1 capital to risk-weighted assets of 4.5%. By 2019, when fully phased in, the rules will require further increases to certain minimum capital requirements and a capital conservation buffer of an additional 2.5% of risk-weighted assets. Basel III permits certain banks such as us to exclude accumulated other comprehensive income or loss from regulatory capital through a one-time election in the first quarter of 2015. As it was consistent with our existing treatment, there were no changes to our capital ratios as a result of making this election. The changes that affected us most significantly include:

• shifting off-balance sheet items with an original maturity of one year or less from 0% to 20% risk weight,

• moving past due loan balances from 100% to 150% risk weight,

• deducting deferred tax assets associated with NOLs and tax credits from common equity Tier 1 capital, and

• subjecting deferred tax assets related to temporary timing differences that exceed certain thresholds to 250% risk-weighting, beginning in 2018.

We have modeled our ratios under fully phased-in Basel III rules and, based on present facts, we do not expect that we will be required to raise additional capital as a result of the fully phased-in rules.

The Bancorp’s and Bank's capital adequacy ratios as of December 31, 2016 and 2015 are presented in the following tables. Bancorp's Tier 1 capital includes the subordinated debentures, which are not included at the Bank level. We continued to build capital in 2016 through the accumulation of net income.

Capital Ratios for Bancorp (dollars in thousands)	Actual Ratio				Adequately Capitalized Threshold 1				Ratio to be a Well Capitalized Bank Holding Company
December 31, 2016	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total Capital (to risk-weighted assets)	$	247,453	14.32	%	≥ $	149,039	≥ 8.625	%	≥ $	172,799	≥ 10.000	%
Tier 1 Capital (to risk-weighted assets)	$	231,111	13.37	%	≥ $	114,479	≥ 6.625	%	≥ $	138,239	≥ 8.000	%
Tier 1 Capital (to average assets)	$	231,111	11.39	%	≥ $	81,189	≥ 4.000	%	≥ $	101,486	≥ 5.000	%
Common Equity Tier 1 (to risk-weighted assets)	$	225,925	13.07	%	≥ $	88,559	≥ 5.125	%	≥ $	112,319	≥ 6.500	%
December 31, 2015
Total Capital (to risk-weighted assets)	$	227,269	13.37	%	≥ $	135,996	≥ 8.000	%	≥ $	169,995	≥ 10.000	%
Tier 1 Capital (to risk-weighted assets)	$	211,521	12.44	%	≥ $	101,997	≥ 6.000	%	≥ $	135,996	≥ 8.000	%
Tier 1 Capital (to average assets)	$	211,521	10.67	%	≥ $	79,296	≥ 4.000	%	≥ $	99,120	≥ 5.000	%
Common Equity Tier 1 (to risk-weighted assets)	$	206,724	12.16	%	≥ $	76,498	≥ 4.500	%	≥ $	110,497	≥ 6.500	%
1 The 2016 adequately capitalized threshold includes the capital conservation buffer that was effective January 1, 2016. These ratios are not reflected on a fully phased-in basis, which will occur in January 2019.

Capital Ratios for the Bank (dollars in thousands)	Actual Ratio				Adequately Capitalized Threshold 1				Ratio to be Well Capitalized under Prompt Corrective Action Provisions
December 31, 2016	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total Capital (to risk-weighted assets)	$	243,468	14.09	%	≥ $	149,016	≥ 8.625	%	≥ $	172,772	≥ 10.000	%
Tier 1 Capital (to risk-weighted assets)	$	227,127	13.15	%	≥ $	114,462	≥ 6.625	%	≥ $	138,218	≥ 8.000	%
Tier 1 Capital (to average assets)	$	227,127	11.19	%	≥ $	81,176	≥ 4.000	%	≥ $	101,469	≥ 5.000	%
Common Equity Tier 1 (to risk-weighted assets)	$	227,127	13.15	%	≥ $	88,546	≥ 5.125	%	≥ $	112,302	≥ 6.500	%
December 31, 2015
Total Capital (to risk-weighted assets)	$	222,830	13.11	%	≥ $	135,968	≥ 8.000	%	≥ $	169,960	≥ 10.000	%
Tier 1 Capital (to risk-weighted assets)	$	207,082	12.18	%	≥ $	101,976	≥ 6.000	%	≥ $	135,968	≥ 8.000	%
Tier 1 Capital (to average assets)	$	207,082	10.45	%	≥ $	79,268	≥ 4.000	%	≥ $	99,085	≥ 5.000	%
Common Equity Tier 1 (to risk-weighted assets)	$	207,082	12.18	%	≥ $	76,482	≥ 4.500	%	≥ $	110,474	≥ 6.500	%
1 The 2016 adequately capitalized threshold includes the capital conservation buffer that was effective January 1, 2016. These ratios are not reflected on a fully phased-in basis, which will occur in January 2019.

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Financial Instruments with Off-Balance Sheet Risk

12 Months Ended

Dec. 31, 2016

Fair Value Disclosures [Abstract]

Financial Instruments with Off-Balance Sheet Risk

Financial Instruments with Off-Balance Sheet Risk

We make commitments to extend credit in the normal course of business to meet the financing needs of our customers. These financial instruments include commitments to extend credit in the form of loans or through standby letters of credit. Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Because various commitments will expire without being fully drawn upon, the total commitment amount does not necessarily represent future cash requirements.

We are exposed to credit loss equal to the contract amount of the commitment in the event of nonperformance by the borrower. We use the same credit underwriting criteria for all credit exposure. The amount of collateral obtained, if deemed necessary by us, is based on Management's credit evaluation of the borrower. Collateral types pledged may include accounts receivable, inventory, other personal property and real property.

The contractual amount of undrawn loan commitments and standby letters of credit not reflected on the consolidated statements of condition are as follows:

(in thousands)	December 31, 2016		December 31, 2015
Commercial lines of credit	$	216,774	$	191,305
Revolving home equity lines	148,143		130,359
Undisbursed construction loans	44,798		39,442
Personal and other lines of credit	10,635		11,112
Standby letters of credit	1,939		4,381
Total commitments and standby letters of credit	$	422,289	$	376,599

We record an allowance for losses on these off-balance sheet commitments based on an estimate of probabilities of these commitments being drawn upon according to our historical utilization experience on different types of commitments and expected loss severity. We set aside an allowance for losses on off-balance sheet commitments in the amount of $899 thousand and $749 thousand as of December 31, 2016 and 2015, respectively, which is recorded in interest payable and other liabilities on the consolidated statements of condition. The increase in the reserve for off-balance sheet commitments in 2016 was primarily due to an increase in commitments and a decrease in average utilization. Approximately 42% of the commitments expire in 2017, approximately 42% expire between 2018 and 2024 and approximately 16% expire thereafter.

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Condensed Bank of Marin Bancorp Parent Only Financial Statements

12 Months Ended

Dec. 31, 2016

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Condensed Bank of Marin Bancorp Parent Only Financial Statements

Condensed Bank of Marin Bancorp Parent Only Financial Statements

Presented below is financial information for Bank of Marin Bancorp, parent holding company only.

CONDENSED UNCONSOLIDATED STATEMENTS OF CONDITION
December 31, 2016 and 2015
(in thousands)	2016		2015
Assets
Cash and due from Bank of Marin	$	3,568	$	3,796
Investment in bank subsidiary	232,431		215,722
Other assets	670		770
Total assets	$	236,669	$	220,288
Liabilities and Stockholders' Equity
Subordinated debentures	$	5,586	$	5,395
Accrued expenses payable	96		109
Other liabilities	424		311
Total liabilities	6,106		5,815
Stockholders' equity	230,563		214,473
Total liabilities and stockholders' equity	$	236,669	$	220,288

CONDENSED UNCONSOLIDATED STATEMENTS OF INCOME
Years ended December 31, 2016, 2015 and 2014
(in thousands)	2016		2015		2014
Income
Dividends from bank subsidiary	$	6,400	$	6,500	$	—
Miscellaneous Income	7		6		8
Total income	6,407		6,506		8
Expense
Interest expense	435		420		421
Non-interest expense	984		973		851
Total expense	1,419		1,393		1,272
Income (loss) before income taxes and equity in undistributed net income of subsidiary	4,988		5,113		(1,264		)
Income tax benefit	594		583		532
Income (loss) before equity in undistributed net income of subsidiary	5,582		5,696		(732		)
Earnings of bank subsidiary greater (less) than dividends received from bank subsidiary	17,552		12,745		20,503
Net income	$	23,134	$	18,441	$	19,771

CONDENSED UNCONSOLIDATED STATEMENTS OF CASH FLOWS
Years ended December 31, 2016, 2015 and 2014
(in thousands)	2016			2015			2014
Cash Flows from Operating Activities:
Net income	$	23,134		$	18,441		$	19,771
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Earnings of bank subsidiary greater than dividends received from bank subsidiary	(17,552		)	(12,745		)	(20,503		)
Net change in operating assets and liabilities:
Accretion of discount on subordinated debentures	191			210			216
Other assets	353			(298		)	(88		)
Intercompany receivable	171			(18		)	—
Other liabilities	(302		)	368			(99		)
Net cash provided by (used in) operating activities	5,995			5,958			(703		)
Cash Flows from Investing Activities:
Capital contribution to subsidiary	(1,285		)	(1,156		)	(1,475		)
Net cash used in investing activities	(1,285		)	(1,156		)	(1,475		)
Cash Flows from Financing Activities:
Stock options exercised and stock purchases	1,285			1,156			1,475
Dividends paid on common stock	(6,223		)	(5,390		)	(4,733		)
Net cash used by financing activities	(4,938		)	(4,234		)	(3,258		)
Net (decrease) increase in cash and cash equivalents	(228		)	568			(5,436		)
Cash and cash equivalents at beginning of period	3,796			3,228			8,664
Cash and cash equivalents at end of period	$	3,568		$	3,796		$	3,228
Supplemental schedule of non-cash investing and financing activities:
Stock issued in payment of director fees	$	234		$	275		$	236

End of 2016 Audited Consolidated Financial Statements

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Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation: The consolidated financial statements include the accounts of Bank of Marin Bancorp (“Bancorp”), a bank holding company, and its wholly-owned bank subsidiary, Bank of Marin (the “Bank”), a California state-chartered commercial bank. References to “we,” “our,” “us” mean the holding company and the Bank that are consolidated for financial reporting purposes. All material intercompany transactions have been eliminated. We have evaluated subsequent events through the date of filing with the Securities and Exchange Commission (“SEC”) and have determined that there are no subsequent events that require additional recognition or disclosure, except for the transfer of certain investment securities from the available-for-sale category to held-to-maturity as discussed in Note 2, Investment Securities, herein.

The NorCal Community Bancorp Trusts I and II, respectively (the "Trusts"), were formed for the sole purpose of issuing trust preferred securities. Bancorp is not considered the primary beneficiary of the Trusts (variable interest entities), therefore the Trusts are not consolidated in our consolidated financial statements, but rather the subordinated debentures are shown as a liability on our consolidated statements of condition (See Note 7, Borrowings). Bancorp's investment in the securities of the Trusts is accounted for under the equity method and is included in interest receivable and other assets on the consolidated statements of condition.

Cash and Cash Equivalents

Cash and Cash Equivalents include cash, due from banks, federal funds sold and other short-term investments with maturity less than three months at the time of origination.

Investment Securities

Investment Securities are classified as "held-to-maturity," "trading securities" or "available-for-sale." Investments classified as held-to-maturity are those that we have the ability and intent to hold until maturity and are reported at cost, adjusted for the amortization or accretion of premiums or discounts. Investments held for resale in anticipation of short-term market movements are classified as trading securities and are reported at fair value, with unrealized gains and losses included in earnings. Investments that are neither held-to-maturity nor trading are classified as available-for-sale and are reported at fair value. Unrealized gains and losses for available-for-sale securities, net of related tax, are reported as a separate component of comprehensive income and included in stockholders' equity until realized. For discussion of our methodology in determining fair value, see Note 9, Fair Value of Assets and Liabilities.

At each financial statement date, we assess whether declines in the fair value of held-to-maturity and available-for-sale securities below their costs are deemed to be other-than-temporary. We consider, among other things, (i) the length of time and the extent to which the fair value has been less than cost, (ii) the financial condition and near-term prospects of the issuer, and (iii) our intent and ability to retain the investment for a period of time sufficient to allow for any anticipated recovery in fair value. Evidence evaluated includes, but is not limited to, the remaining payment terms of the instrument and economic factors that are relevant to the collectability of the instrument, such as: current prepayment speeds, the current financial condition of the issuer(s), industry analyst reports, credit ratings, credit default rates, interest rate trends, the quality of any credit enhancement and the value of any underlying collateral.

For each security in an unrealized loss position ("impaired security"), we assess whether we intend to sell the security or if it is more likely than not that we will be required to sell the security before recovery of its amortized cost basis. If we intend to sell the security or it is more likely than not we will be required to sell the security before recovery of its amortized cost basis, the entire difference between the investment’s amortized cost basis and its fair value at the balance sheet date is recognized against earnings.

For impaired securities that are not intended for sale and will not be required to be sold prior to recovery of our amortized cost basis, we determine if the impairment has a credit loss component. For both held-to-maturity and available-for-sale securities, if the amount of cash flows expected to be collected are less than the amortized cost, an other-than-temporary impairment shall be considered to have occurred and the credit loss component is recognized against earnings as the difference between present value of the expected future cash flows and the amortized cost. In determining the present value of the expected cash flows, we discount the expected cash flows at the effective interest rate implicit in the security at the date of purchase. The remaining difference between the fair value and the amortized basis is deemed to be due to factors that are not credit related and is recognized in other comprehensive income, net of applicable taxes.

For held-to-maturity securities, if there is no credit loss component, no impairment is recognized. The portion of other-than-temporary impairment recognized in other comprehensive income for credit impaired debt securities classified as held-to-maturity is accreted from other comprehensive income to the amortized cost of the debt security over the remaining life of the debt security in a prospective manner on the basis of the amount and timing of future estimated cash flows.

Premiums and discounts are amortized or accreted over the life of the related security as an adjustment to yield using the effective interest method. Dividend and interest income are recognized when earned. Realized gains and losses on the sale of securities and credit losses related to other-than-temporary impairment on available-for-sale and held-to-maturity securities are included in non-interest income as gains (losses) on investment securities, net. The specific identification method is used to calculate realized gains and losses on sales of securities.

Originated Loans

Originated Loansare reported at the principal amount outstanding net of deferred fees (costs), charge-offs and the allowance for loan losses (“ALLL”). Interest income is accrued daily using the simple interest method. Loans are placed on non-accrual status when Management believes that there is doubt as to the collection of principal or interest, generally when they become contractually past due by ninety days or more with respect to principal or interest, except for loans that are well-secured and in the process of collection. When loans are placed on non-accrual status, any accrued but uncollected interest is reversed from current-period interest income. Non-accrual loans may be returned to accrual status when one of the following occurs:

• The borrower has resumed paying the full amount of the principal and interest and we are satisfied with the borrower's financial position. In order to meet this test, we must have received repayment of all past due principal and interest unless the amounts contractually due are reasonably assured of repayment within a reasonable period of time, and there has been a sustained period of repayment performance (generally, six consecutive monthly payments), according to the original contractual terms or modified terms for loans whose contractual terms have been restructured in a manner which grants a concession to a borrower experiencing financial difficulties (“troubled debt restructuring”).

• The loan has become well secured and is in the process of collection.

Loan origination fees and commitment fees, offset by certain direct loan origination costs, are deferred and amortized as yield adjustments over the contractual lives of the related loans.

Loan Charge-Off Policy

Loan Charge-Off Policy:For all loan types excluding overdraft accounts, we generally make a charge-off determination at or before 90 days past due. A collateral-dependent loan is partially charged down to the fair value of collateral securing it if: (1) it is deemed uncollectable, or (2) it has been classified as a loss by either our internal loan review process or external examiners. A non-collateral-dependent loan is partially charged down to its net realizable value under the same circumstances. Overdraft accounts are generally charged off when they exceed 60 days past due.

Acquired Loans

Acquired Loans: Acquired loans are recorded at their estimated fair values at acquisition date in accordance with ASC 805 Business Combinations, factoring in credit losses expected to be incurred over the life of the loan. Accordingly, an allowance for loan losses is not carried over or recorded for acquired loans as of the acquisition date.

We estimated the fair value of acquired loans at the acquisition date based on a discounted cash flow methodology that considered factors including the type of loan and related collateral, risk classification, fixed or variable interest rate, term of loan, whether or not the loan was amortizing, and current discount rates. Loans, except for purchased credit impaired ("PCI") loans, were grouped together according to similar risk characteristics and treated in the aggregate when applying various valuation techniques. Expected cash flows incorporated our best estimate of key assumptions at the time, such as property values, default rates, loss severity and prepayment speeds. Discount rates were based on market rates for new originations of comparable loans, where available, and included adjustments for liquidity factors. To the extent comparable market rates were not readily available, a discount rate was derived based on the assumptions of market participants' cost of funds, servicing costs and return requirements for comparable risk assets. In either case, the discount rate did not include a factor for credit losses, as that had been considered in estimating the cash flows. The process of calculating fair values of acquired loans, including estimates of losses expected to be incurred over the estimated remaining lives of the loans at acquisition date and ongoing updates to Management's expectation of future cash flows, requires significant subjective judgments and assumptions. The economic environment and lack of market liquidity and transparency are factors that have influenced, and may continue to affect, these assumptions and estimates.

We acquired loans with evidence of significant credit quality deterioration subsequent to their origination and for which it was probable, at acquisition, that we would be unable to collect all contractually required payments. Management applied significant subjective judgment in determining which loans were PCI loans. Evidence of credit quality deterioration as of the purchase date may include data such as past due and nonaccrual status, risk grades and charge-off history. Revolving credit agreements (e.g., home equity lines of credit and revolving commercial loans) where the borrower had revolving rights at acquisition date were not considered PCI loans because the timing and amount of cash flows could not be reasonably estimated.

The difference between the undiscounted expected cash flows expected to be collected and the fair value at acquisition date ("accretable difference") is accreted into interest income at a level yield of return over the estimated remaining life of the PCI loan, provided that the timing and amount of future cash flows is reasonably estimable. The accretable yield is affected by:

• Changes in interest rate indices for variable rate loans – Expected future cash flows are based on the variable rates in effect at the time of the regular evaluations of cash flows expected to be collected;

• Changes in prepayment assumptions – Prepayments affect the estimated life of the loans which may change the amount of interest income, and possibly principal, expected to be collected; and

• Changes in the expected principal and interest payments over the estimated life – Updates to expected cash flows are driven by the credit outlook and actions taken with borrowers. Changes in expected future cash flows from loan modifications are included in the regular evaluations of cash flows expected to be collected.

The cash flows expected to be collected are updated each quarter based on current assumptions regarding default rates, loss severities, and other factors that are reflective of current financial conditions of the borrowers and the market conditions. Probable decreases in expected cash flows after acquisition result in impairment recorded as a specific allowance for loan losses or a charge-off to the allowance. Impairment is calculated as the present value of the expected future cash flows on the PCI loan, discounted at the loan's effective interest rate implicit in the loan.

The nonaccretable difference on the date of acquisition is defined as the difference between the contractually required payments and the cash flows expected to be collected, considering the result of prepayments, and is not recorded.

For purposes of accounting for the PCI loans from past business combinations, we elected not to apply the pooling method but to account for these loans individually. Disposals of loans, which may include sales of loans to third parties, receipt of payments in full by the borrower, or foreclosure of the collateral, result in removal of the loan from the PCI loan portfolio at its carrying amount. If a PCI loan pays off earlier than expected, a gain is recorded as interest income when the payoff amount exceeds the recorded investment.

For acquired loans not considered credit impaired ("non-PCI"), we recognize the entire fair value discount accretion to interest income, based on contractual cash flows using an effective interest rate method for term loans, and on a straight line basis for revolving lines. When a non-PCI loan is placed on non-accrual status subsequent to acquisition, accretion stops until the loan is returned to accrual status. The level of accretion on non-PCI loans varies from period to period due to maturities and early pay-offs of these loans during the reporting periods. Subsequent to acquisition, if the probable and estimable losses for non-PCI loans exceed the amount of the remaining unaccreted discount, the excess is established as an allowance for loan losses.

For further information regarding our acquired loans, see Note 3, Loans and Allowance for Loan Losses.

Allowance for Loan Losses

Allowance for Loan Lossesis based upon estimates of loan losses and is maintained at a level considered adequate to provide for probable losses inherent in the loan portfolio. The allowance is increased by provisions for loan losses charged against earnings and reduced by charge-offs, net of recoveries.

In periodic evaluations of the adequacy of the allowance balance, Management considers current economic conditions, known and inherent risks in the portfolio, adverse situations that may affect the borrower's ability to repay, the estimated value of any underlying collateral, our past loan loss experience and other factors. The ALLL is based on estimates, and ultimate losses may vary from current estimates. Our Board of Directors' Asset/Liability Management Committee (“ALCO”) reviews the adequacy of the ALLL at least quarterly.

The overall allowance consists of 1) specific allowances for individually identified impaired loans ("ASC 310-10") and 2) general allowances for pools of loans ("ASC 450-20"), which incorporate quantitative (e.g., historical loan loss rates) and qualitative risk factors (e.g., portfolio growth and trends, credit concentrations, economic and regulatory factors, etc.).

The first component, specific allowances, results from the analysis of identified problem credits and the evaluation of sources of repayment including collateral, as applicable. Through Management's ongoing loan grading and credit monitoring process, individual loans are identified that have conditions indicating the borrower may be unable to pay all amounts due in accordance with the contractual terms. These loans are evaluated for impairment individually by Management. Management considers an originated loan to be impaired when it is probable we will be unable to collect all amounts due according to the contractual terms of the loan agreement. When the fair value of the impaired loan is less than the recorded investment in the loan, the difference is recorded as an impairment through the establishment of a specific allowance. For loans determined to be impaired, the extent of the impairment is measured based on the present value of expected future cash flows discounted at the loan's effective interest rate at origination (for originated loans), based on the loan's observable market price, or based on the fair value of the collateral if the loan is collateral dependent or if foreclosure is imminent. Generally with problem credits that are collateral dependent, we obtain appraisals of the collateral at least annually. We may obtain appraisals more frequently if we believe the collateral value is subject to market volatility, if a specific event has occurred to the collateral, or if we believe foreclosure is imminent.

The second component is an estimate of the probable inherent losses in each loan pool with similar characteristics. This analysis encompasses the entire loan portfolio, excluding individually identified impaired loans and acquired loans whose purchase discount has not been fully accreted. Under our allowance model, loans are evaluated on a pool basis by federal regulatory reporting codes ("CALL codes" or "segments"), which are further delineated by assigned credit risk ratings, as described in Note 3, Loans and Allowance for Loan Losses. Segments include the following:

• Loans secured by real estate:

-     1-4 family residential construction loans

-     Other construction loans and all land development and other land loans

-     Secured by farmland (including residential and other improvements)

-     Revolving, open-end loans secured by 1-4 family residential properties and extended under lines of credit

-     Closed-end loans secured by 1-4 family residential properties, secured by first liens

-     Closed-end loans secured by 1-4 family residential properties, secured by junior liens

-     Secured by multifamily (5 or more) residential properties

-     Loans secured by owner-occupied non-farm nonresidential properties

-     Loans secured by other non-farm nonresidential properties

• Loans to finance agricultural production and other loans to farmers

• Commercial and industrial loans

• Loans to individuals for household, family and other personal expenditures (i.e., consumer loans)

• Other loans

The model determines general allowances by loan segment based on quantitative (loss history) and qualitative risk factors. Qualitative internal and external risk factors include, but are not limited to, the following:

• Changes in the nature and volume of the loan portfolio.

• Changes in the volume and severity of past due loans, the volume of non-accruals loans, and the volume and severity of adversely classified or graded loans.

• The existence and effect of individual loan and loan segment concentrations.

• Changes in lending policies and procedures, including changes in underwriting standards and collection, charge-off, and recovery practices not considered elsewhere.

• Changes in the experience, ability, and depth of lending management and other relevant staff.

• Changes in the quality of our systematic loan review processes.

• Changes in economic and business conditions, and developments that affect the collectability of the portfolio.

• Changes in the value of underlying collateral, where applicable.

• The effect of other external factors such as legal and regulatory requirements on the level of estimated credit losses in the portfolio.

• The effect of acquisitions of other loan portfolios on our infrastructure, including risk associated with entering new geographic areas as a result of such acquisitions.

• The presence of specialized lending segments in the portfolio.

Beginning with the quarter ended March 31, 2016, Management enhanced its methodology for determining the quantitative and qualitative risk factors assigned to unimpaired loans in order to capture historical loss information at the loan level, track loss migration through risk grade deterioration, increase efficiencies related to performing the calculations, and refine how we incorporate environmental and other unique risk elements into our estimation of credit losses. The changes in methodology did not result in a material difference in general allowances. Prior to March 31, 2016, under the Bank's allowance model, each segment was assigned a quantitative loss factor that was primarily based on a rolling twenty-quarter look-back at our historical losses for that particular segment, as well as a number of other assumptions. Under the current methodology, the quantitative risk factor for each segment utilizes the greater of either the historical loss method based on a rolling twenty-four-quarter look-back period or migration analysis loss method based on loss history beginning March 2010.

Under the historical loss method, quarterly loss rates are calculated for each segment by dividing annualized net charge-offs during each quarter by the quarter's average segment balances. The quarterly loss rates are averaged over the entire loss history period. Under the migration analysis method, loss rates are calculated at the risk grade and segment levels by dividing the net charge-off amount by the total segment balance at the beginning of each migration period where the charged-off loan in question was present. Migration loss rates are averaged for each risk grade and segment for the entire loss history period. For each segment, the loss rates that result in the larger of the migration loss reserves or segment historical loss reserves are applied to the current loan balances. Qualitative factors are combined with these quantitative factors at the segment level to arrive at the overall general allowances.

We establish specific allowances to account for credit deterioration for probable decreases in cash flows for PCI loans subsequent to acquisition. The estimated cash flows expected to be collected on PCI loans is updated quarterly and requires the use of key assumptions and estimates based on factors such as the current economic environment, changes in collateral values, loan workout plans, changes in the probability of default, loss severities, and prepayments. Probable decreases in expected cash flows after acquisition result in impairment recorded as a specific allowance for loan losses or a charge-off to the allowance. Impairment is calculated as the present value of the expected future cash flows on the PCI loan, discounted at the loan's effective interest rate implicit in the loan.

While we believe we use the best information available to determine the allowance for loan losses, our results of operations could be significantly affected if circumstances differ substantially from the assumptions used in determining the allowance. A decline in local and national economic conditions, or significant changes in other assumptions, could result in a material increase in the allowance for loan losses and may adversely affect our financial condition and results of operations. In addition, the determination of the amount of the allowance for loan losses is subject to review by bank regulators as part of their routine examination process, which may result in the establishment of additional allowance for loan losses based upon their judgment of information available to them at the time of their examination.

For further information regarding the allowance for loan losses, see Note 3, Loans and Allowance for Loan Losses.

Allowance for Losses on Off-Balance-Sheet Commitments

Allowance for Losses on Off-Balance Sheet Commitments: We make commitments to extend credit to meet the financing needs of our customers in the form of loans or standby letters of credit. We are exposed to credit loss in the event that a decline in credit quality of the borrower leads to nonperformance. We record an allowance for losses on these off-balance sheet commitments based on estimates of probability that these commitments will be drawn upon according to our historical utilization experience on different types of commitments and expected loss severity. This allowance is included in interest payable and other liabilities on the consolidated statements of condition.

Transfers of Financial Assets

Transfers of Financial Assets: We have entered into certain participation agreements with other organizations. We account for these transfers of financial assets as sales when control over the transferred financial assets has been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets and liabilities have been isolated from us, (2) the transferee has the right to pledge or exchange the assets (or beneficial interests) it received, free of conditions that constrain it from taking advantage of that right, beyond a trivial benefit and (3) we do not maintain effective control over the transferred financial assets or third-party beneficial interests related to those transferred assets.

Premises and Equipment

Premises and Equipment: Premises and equipment consist of leasehold improvements, furniture, fixtures, software and equipment and are stated at cost, less accumulated depreciation and amortization, which are calculated on a straight-line basis. Furniture and fixtures are depreciated over eight years and equipment is generally depreciated over three to twenty years. Leasehold improvements are amortized over the lesser of their estimated useful lives or the terms of the leases. When assets are sold or otherwise disposed of, the cost and related accumulated depreciation or amortization are removed from the accounts and any resulting gain or loss is recognized in income for the period. The cost of maintenance and repairs is charged to expense as incurred.

Business Combinations

Business Combinations: Business combinations are accounted for under the acquisition method of accounting in accordance with ASC 805, Business Combinations. Under the acquisition method the acquiring entity in a business combination recognizes the acquired assets and assumed liabilities at their estimated fair values as of the date of acquisition. Any excess of the purchase price over the fair value of net assets and other identifiable intangible assets acquired is recorded as goodwill. To the extent the fair value of net assets acquired, including other identifiable assets, exceed the purchase price, a bargain purchase gain is recognized. Assets acquired and liabilities assumed from contingencies must also be recognized at fair value, if the fair value can be determined during the measurement period. Results of operations of an acquired business are included in the statement of operations from the date of acquisition. Acquisition-related costs, including conversion and restructuring charges, are expensed as incurred.

Goodwill and Other Intangible Assets

We make a qualitative assessment of whether it is more likely than not that the fair value of a reporting unit where goodwill is assigned is less than its carrying amount before applying a two-step goodwill impairment test. If we conclude that it is more likely than not that the fair value is more than its carrying amount, we do not perform the two-step impairment test. Goodwill is tested for impairment on an interim basis if circumstances change or an event occurs between annual tests that would more likely than not reduce the fair value of the reporting unit below its carrying amount. The qualitative assessment includes adverse events or circumstances identified that could negatively affect the reporting units’ fair value as well as positive and mitigating events. Such indicators may include, among others, a significant change in legal factors or in the general business climate, significant change in our stock price and market capitalization, unanticipated competition, and an action or assessment by a regulator.

Goodwill and Other Intangible Assets: Goodwill is determined as the excess of the fair value of the consideration transferred, plus the fair value of any noncontrolling interests in the acquiree, over the fair value of the net assets acquired and liabilities assumed as of the acquisition date. Goodwill that arises from a business combination is periodically evaluated for impairment at the reporting unit level, at least annually. Intangible assets with definite useful lives are amortized over their estimated useful lives to their estimated residual values. Core deposit intangible represents the estimated future benefit of deposits related to an acquisition and is booked separately from the related deposits and evaluated periodically for impairment. The core deposit intangible asset is amortized on an accelerated method over its estimated useful life of ten years.

Other Real Estate Owned (OREO)

Other Real Estate Owned ("OREO"):OREO is comprised of property acquired through foreclosure, in substance repossession or acceptance of deeds-in-lieu of foreclosure when the related loan receivable is de-recognized. OREO is recorded at fair value of the collateral less estimated costs to sell, establishing a new cost basis, and subsequently accounted for at the lower of cost or fair value less estimated costs to sell. Any shortfall of collateral value from the recorded investment of the related loan is recognized as loss at the time of foreclosure and is charged against the allowance for loan losses. Fair value of collateral is generally based on an independent appraisal of the property. Revenues and expenses associated with OREO, and subsequent adjustments to the fair value of the property and to the estimated costs of disposal, are realized and reported as a component of non-interest income and expense when incurred.

Bank Owned Life Insurance

Bank Owned Life Insurance ("BOLI"): The Bank owns life insurance policies on certain key current and former officers. BOLI is recorded in interest receivable and other assets on the consolidated statements of condition at the amount that can be realized under the insurance contract at the period end, which is the cash surrender value adjusted for other charges or amounts due that are probable at settlement.

Federal Home Loan Bank of San Francisco (FHLB) Stock

Federal Home Loan Bank of San Francisco ("FHLB") Stock: The Bank is a member of the FHLB. Members are required to own a certain amount of stock based on the level of borrowings and other factors. Our investment in FHLB stock is carried at cost and is included as part of interest receivable and other assets on the consolidated statements of condition. We periodically evaluate FHLB stock for impairment based on ultimate recovery of par value. Both cash and stock dividends are reported as non-interest income.

Investments in Low Income Housing Tax Credit Funds

Investments in Low Income Housing Tax Credit Funds: We have invested in limited partnerships that were formed to develop and operate affordable housing projects for low or moderate income tenants throughout California. Our ownership in each limited partnership is less than two percent. In accordance with ASU No. 2014-01, Investments - Equity Method and Joint Ventures (Topic 323), we elected to account for the investments in qualified affordable housing tax credit funds using the proportional amortization method. Under the proportional amortization method, the initial cost of the investment is amortized in proportion to the tax credits and other tax benefits received and the net investment performance is recognized as part of income tax expense (benefit). Each of the partnerships must meet the regulatory minimum requirements for affordable housing for a minimum 15-year compliance period to fully utilize the tax credits. If the partnerships cease to qualify during the compliance period, the credit may be denied for any period in which the project is not in compliance and a portion of the credit previously taken is subject to recapture with interest.

Employee Stock Ownership Plan (ESOP)

Employee Stock Ownership Plan (“ESOP”): We recognize compensation cost of the ESOP contribution when funds become committed for the purchase of Bancorp's common shares into the ESOP in the year in which the employees render service entitling them to the contribution. If we contribute stock, the compensation cost is the fair value of the shares when they are committed to be released, i.e. when the number of shares becomes known. During 2016, 2015 and 2014, the Bank made only cash contributions to the ESOP without leveraging.

Income Taxes

Income Taxes: Income taxes reported in the consolidated financial statements are computed based on an asset and liability approach. We recognize the amount of taxes payable or refundable for the current year and we record deferred tax assets and liabilities for future tax consequences attributable to differences between the financial statement carrying amount of existing assets and liabilities and their respective tax bases using enacted tax rates in effect for the year in which the temporary differences are expected to reverse. We record net deferred tax assets to the extent it is more likely than not that they will be realized. In evaluating our ability to recover the deferred tax assets and the need to establish a valuation allowance against the deferred tax assets, Management considers all available positive and negative evidence, including scheduled reversals of deferred tax liabilities, projected future taxable income, and tax planning strategies. In projecting future taxable income, Management develops assumptions including the amount of future state and federal pretax operating income, the reversal of temporary differences, and the implementation of feasible and prudent tax planning strategies. These assumptions require significant judgment about the forecasts of future taxable income and are consistent with the plans and estimates being used to manage the underlying business. Bancorp files consolidated federal and combined state income tax returns.

We recognize the financial statement effect of a tax position when it is more likely than not, based on the technical merits and all available evidence, that the position will be sustained upon examination, including the resolution through protests, appeals or litigation processes. For tax positions that meet the more-likely-than-not threshold, we measure and record the largest amount of tax benefit that is greater than fifty percent likely of being realized upon ultimate settlement with the taxing authority. The remainder of the benefits associated with tax positions taken is recorded as unrecognized tax benefits, along with any related interest and penalties. Interest and penalties related to unrecognized tax benefits are recorded in tax expense.

In deciding whether or not our tax positions taken meet the more-likely-than-not recognition threshold, we must make judgments and interpretations about the application of inherently complex state and federal tax laws. To the extent tax authorities disagree with tax positions taken by us, our effective tax rates could be materially affected in the period of settlement with the taxing authorities. Revision of our estimate of accrued income taxes also may result from our own income tax planning, which may affect effective tax rates and results of operations for any reporting period.

We present an unrecognized tax benefit as a reduction of a deferred tax asset for a net operating loss ("NOL") carryforward, or similar tax loss or tax credit carryforward, rather than as a liability, when (1) the uncertain tax position would reduce the NOL or other carryforward under the tax law of the applicable jurisdiction and (2) we intend to and are able to use the deferred tax asset for that purpose. Otherwise, the unrecognized tax benefit is presented as a liability instead of being netted with deferred tax assets.

Earnings per share (EPS)

Earnings per share (“EPS”) are based upon the weighted average number of common shares outstanding during each year. The following table shows: 1) weighted average basic shares, 2) potentially dilutive weighted average common shares related to stock options, unvested restricted stock awards and stock warrant, and 3) weighted average diluted shares. Basic EPS are calculated by dividing net income by the weighted average number of common shares outstanding during each period, excluding unvested restricted stock awards. Diluted EPS are calculated using the weighted average number of potentially dilutive common shares. The number of potentially dilutive common shares included in quarterly diluted EPS is computed using the average market prices during the three months included in the reporting period under the treasury stock method. The number of potentially dilutive common shares included in year-to-date diluted EPS is a year-to-date weighted average of potentially dilutive common shares included in each quarterly diluted EPS computation. We have two forms of our outstanding common stock: common stock and unvested restricted stock awards. Holders of unvested restricted stock awards receive non-forfeitable dividends at the same rate as common shareholders and they both share equally in undistributed earnings. Under the two-class method, the difference in EPS is not significant for these participating securities.

Share-Based Compensation

Share-Based Compensation: All share-based payments, including stock options and restricted stock, are recognized as stock-based compensation expense in the statements of comprehensive income based on the grant-date fair value of the award with a corresponding increase in common stock. The grant-date fair value of the award is amortized on a straight-line basis over the requisite service period, which is generally the vesting period. The stock-based compensation expense excludes stock grants to directors as compensation for their services, which are recognized as director expenses separately based on the grant-date value of the stock. See Note 8, Stockholders' Equity and Stock Option Plans for further discussion.

We determine fair value of stock options at the grant date using a Black-Scholes pricing model that takes into account the stock price at the grant date, the exercise price, the expected life of the option, the volatility of the underlying stock, the expected dividend yield and the risk-free interest rate over the expected life of the option. The expected term of options granted is derived from historical data on employee exercises and post-vesting employment termination behavior. The risk-free rate for periods within the expected life of the option is based on the U.S. Treasury yield curve in effect at the time of the grant. Expected volatility is based on the historical volatility of the common stock over the most recent period that is generally commensurate with the expected life of the options. In addition, we estimate forfeitures based on historical forfeiture experience and expense is recognized only for those shares expected to vest. The Black-Scholes option valuation model requires the input of highly subjective assumptions, including the expected life of the stock-based award and stock price volatility. The assumptions used represent Management's best estimates based on historical information, but these estimates involve inherent uncertainties and the application of Management's judgment. As a result, if other assumptions had been used, the recorded stock-based compensation expense could have been materially different from that recorded in the consolidated financial statements. The fair value of restricted stock is based on the stock price on grant date.

Derivative Financial Instruments and Hedging Activities

Derivative Financial Instruments and Hedging Activities - Fair Value Hedges: All of our interest rate swap contracts are designated and qualified as fair value hedges. The terms of our interest rate swap contracts are closely aligned to the terms of the designated fixed-rate loans. The hedging relationships are tested for effectiveness on a quarterly basis. The interest rate swaps are carried on the consolidated statements of condition at their fair value in other assets (when the fair value is positive) or in other liabilities (when the fair value is negative). The changes in the fair value of the interest rate swaps are recorded in interest income. The unrealized gains or losses due to changes in fair value of the hedged fixed-rate loans are recorded as an adjustment to the hedged loans and offset in interest income. For derivative instruments executed with the same counterparty under a master netting arrangement, we do not offset fair value amounts of interest rate swaps in liability position with the ones in asset position.

From time to time, we make firm commitments to enter into long-term fixed-rate loans with borrowers backed by yield maintenance agreements and simultaneously enter into forward interest rate swap agreements with correspondent banks to mitigate the change in fair value of the yield maintenance agreement. Prior to loan funding, yield maintenance agreements with net settlement features that meet the definition of a derivative are considered as non-designated hedges and are carried on the consolidated statements of condition at their fair value in other assets (when the fair value is positive) or in other liabilities (when the fair value is negative). The offsetting changes in the fair value of the forward swap and the yield maintenance agreement are recorded in interest income. When the fixed-rate loans are originated, the forward swaps are designated to offset the change in fair value in the loans. Subsequent to the point of the swap designations, the related yield maintenance agreements are no longer considered derivatives. Their fair value at the designation date was recorded in other assets and is amortized using the effective yield method over the life of the respective designated loans.

The net effect of the change in fair value of interest rate swaps, the amortization of the yield maintenance agreement and the change in the fair value of the hedged loans result in an insignificant amount of hedge ineffectiveness recognized in interest income. For further detail, see Note 14, Derivative Financial Instruments and Hedging Activities.

Advertising Costs

Advertising Costsare expensed as incurred.

Comprehensive Income

Comprehensive Income includes net income and changes in the unrealized gain or loss of available-for-sale investment securities, net of related taxes, reported on the statements of comprehensive income and as components of stockholders' equity.

Fair Value Measurements

Fair Value Measurements: We use fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. We base our fair values on the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Securities available-for-sale and derivatives are recorded at fair value on a recurring basis. Additionally, from time to time, we may be required to record certain assets at fair value on a non-recurring basis, such as purchased loans recorded at acquisition date, certain impaired loans, other real estate owned and securities held-to-maturity that are other-than-temporarily impaired. These non-recurring fair value adjustments typically involve write-downs of individual assets due to application of lower-of-cost or market accounting.

When we develop our fair value measurement process, we maximize the use of observable inputs. Whenever there is no readily available market data, we use our best estimates and assumptions in determining fair value, but these estimates involve inherent uncertainties and the application of Management's judgment. As a result, if other assumptions had been used, our recorded earnings or disclosures could have been materially different from those reflected in these financial statements.

For detailed information on our use of fair value measurements and our related valuation methodologies, see Note 9, Fair Value of Assets and Liabilities.

Use of Estimates

Use of Estimates: The preparation of financial statements in conformity with generally accepted accounting principles in the United States of America requires Management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant accounting estimates reflected in the consolidated financial statements include ALLL, other-than-temporary impairment of investment securities, accrued liabilities, accounting for income taxes and fair value measurements (including fair values of acquired assets and assumed liabilities at acquisition dates) as discussed in the Notes herein.

Recently Adopted and Issued Accounting Standards

Recently Adopted and Issued Accounting Standards

In April 2015, the FASB issued ASU No. 2015-05, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40) Customer's Accounting for Fees Paid in a Cloud Computing Arrangement. This ASU was further clarified in December 2015 by ASU No. 2015-19, Technical Corrections and Improvements. These amendments provide guidance about a customer's accounting for fees paid in a cloud computing arrangement. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement as an intangible asset. If a cloud computing arrangement does not include a software license, then the customer should account for the arrangement as a service contract. The two criteria that must be met to be considered a software license are: 1) the customer has the contractual right to take possession of the software at any time during the hosting period without significant penalty; and 2) it is feasible for the customer to either run the software on its own hardware or contract with another party unrelated to the vendor to host the software. We adopted the accounting standards on a prospective basis during the first quarter of 2016 with no material impact on our financial condition or results of operations.

In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-09, Revenue from Contracts with Customers (Topic 606). This ASU is a converged standard involving FASB and International Financial Reporting Standards that provides a single comprehensive revenue recognition model for all contracts with customers across transactions and industries. The core principal of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount and at a time that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Subsequent updates related to Revenue from Contracts with Customers (Topic 606) are as follows:

• August 2015 ASU No. 2015-14 - Deferral of the Effective Date, institutes a one-year deferral of the effective date of this amendment to annual reporting periods beginning after December 15, 2017. Early application is permitted only as of annual periods beginning after December 15, 2016, including interim reporting periods within that reporting period.

• March 2016 ASU No. 2016-08 - Principal versus Agent Considerations (Reporting Revenue Gross versus Net), clarifies the implementation guidance on principal versus agent considerations and on the use of indicators that assist an entity in determining whether it controls a specified good or service before it is transferred to the customer.

• April 2016 ASU No. 2016-10 - Identifying Performance Obligations and Licensing, provides guidance in determining performance obligations in a contract with a customer and clarifies whether a promise to grant a license provides a right to access or the right to use intellectual property.

• May 2016 ASU No. 2016-12 - Narrow Scope Improvements and Practical Expedients, gives further guidance on assessing collectability, presentation of sales taxes, noncash consideration, and completed contracts and contract modifications at transition.

• December 2016 ASU No. 2016-20 - Technical Corrections and Improvements to Topic 606, further clarifies specific aspects of previously issued guidance or corrects unintended application of the guidance.

Our revenue is mainly comprised of net interest income on financial assets and financial liabilities, which is explicitly excluded from the scope of ASU 2014-09. While the recognition of certain revenue arrangements of components of our non-interest income may be affected by the ASU, we do not expect it to have a material impact on our financial condition and results of operations.

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. The amendments in this ASU make improvements to accounting standards related to financial instruments, including the following:

• Requires equity investments, except for those accounted for under the equity method of accounting or those that result in consolidation of the investee, to be measured at fair value with changes in fair value recognized in net income. However, an entity may choose to measure equity investments that do not have readily determinable fair values at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer.

• Simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment. When impairment exists, an entity is required to measure the investment at fair value.

• Eliminates the requirement to disclose the method(s) and significant assumptions used to estimate the fair value that is currently required to be disclosed for financial instruments measured at amortized cost on the balance sheet.

• Requires public companies to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes.

• Requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset (i.e., securities or loans and receivables) on the balance sheet or the accompanying notes to the financial statements.

• Clarifies that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity's other deferred tax assets.

ASU 2016-01 is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. This ASU may affect our financial statement presentation and related footnotes, but we do not expect it to have a material impact on our financial condition or results of operations.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). The amendments in this ASU intend to increase transparency and comparability among organizations by recognizing an asset, which represents the right to use the asset for the lease term, and a lease liability, which is a lessee's obligation to make lease payments measured on a discounted basis. This ASU generally applies to leasing arrangements exceeding a twelve month term. ASU 2016-02 is effective for annual periods, including interim periods within those annual periods beginning after December 15, 2018 and requires a modified retrospective method of adoption. Early application of the amendments is permitted. We intend to adopt this ASU during the first quarter of 2019, as required, and are currently evaluating accounting solutions. As of December 31, 2016, our undiscounted operating lease obligations that were off-balance sheet totaled $21.1 million (See Note 12, Commitments and Contingencies). Upon adoption of this ASU, the present values of leases currently classified as operating leases will be recognized as lease assets and liabilities on our balance sheet. Additional disclosures of key information about our leasing arrangements will also be required. We do not expect the ASU will have a material impact on our capital ratios or return on average assets when adopted and we are currently evaluating the effect the ASU will have on other components of our financial condition and results of operations.

In March 2016, the FASB issued ASU No. 2016-05, Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships. A contract novation refers to replacing one of the parties to a derivative instrument with a new party. This ASU clarifies that a change in counterparty in a derivative instrument does not, in and of itself, require dedesignation of that hedging relationship and therefore discontinue the application of hedge accounting. ASU 2016-05 is effective for financial statements issued for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. We have evaluated the requirements of this ASU and have determined that it will not have a material impact on our financial condition or results of operations upon adoption in the first quarter of 2017.

In March 2016, the FASB issued ASU No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. This ASU identifies areas for simplification involving several aspects of accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, forfeiture accounting, and classifications on the statement of cash flows. ASU 2016-09 is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. We have implemented the requirements of this ASU and have elected to change our accounting policy to recognize forfeitures as they occur starting January 1, 2017, which might cause earnings volatility in the future if there are material forfeitures. ASU 2016-09 also requires that all income tax effects related to settlements of share-based payment awards be reported in earnings as an increase (or decrease) to income tax expense. Previously, income tax benefits at settlement of an award were reported as an increase (or decrease) to stockholders' equity to the extent that those benefits were greater than (or less than) the income tax benefits recognized in earnings during the award's vesting period. The requirement to report those income tax effects in earnings will be applied to settlements occurring on or after January 1, 2017. These changes and those of the remaining provisions of ASU 2016-09 are not expected to have significant impact on our financial condition and results of operations.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. Under the new guidance, entities will be required to measure expected credit losses by utilizing forward-looking information to assess an entity's allowance for credit losses. The measurement of expected credit losses is based on historical experience, current conditions and reasonable and supportable forecasts that affect the collectability of a credit over its remaining life. In addition, the ASU amends the accounting for potential credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. ASU 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. As discussed previously under Allowance For Loan Losses, Management refined our allowance for loan loss model in 2016 and enhanced our loan-level data collection and methodology for analyzing credit losses in preparation for the new accounting standards. We will continue our evaluation of the provisions of this ASU and will be monitoring developments, additional guidance and the potential outcome the amendments will have on our financial condition and results of operations upon adoption in the first quarter of 2020.

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. This ASU provides guidance on how to present and classify eight specific cash flow topics in the statement of cash flows. The ASU is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The amendments should be applied using a retrospective transition method to each period presented, if practical. This ASU may affect our financial statement presentation, but we do not expect it to have a material impact on our financial condition, statements of cash flows, or results of operations.

In January 2017, the FASB issued ASU No. 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. The amendments are intended to help companies evaluate whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses and provide a more robust framework to use in determining when a set of assets and activities is a business. The amendments are effective for annual periods after December 31, 2017, including interim periods within those periods. We will consider these amendments in our evaluation of the accounting for any future business acquisitions or disposals of assets, upon adoption in first quarter of 2018.

In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This amendment simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test, which would measure a goodwill impairment loss by comparing the implied fair value of goodwill with the carrying amount of that goodwill. Instead, an entity will perform only Step 1 of its quantitative goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount, and then recognizing an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value. The loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. The new guidance does not amend the optional qualitative assessment of goodwill impairment, which Bancorp currently uses. The ASU is effective for fiscal years beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. We anticipate that this ASU will simplify our evaluation of the impairment of goodwill and do not expect it to have a material impact on our financial condition and results of operations.

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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

At December 31, 2016, the future estimated amortization expense is as follows:

(in thousands)	2017		2018		2019		2020		2021		Thereafter		Total
Core deposit intangible amortization	$	472	$	413	$	388	$	365	$	343	$	599	$	2,580

Schedule of Earnings Per Share Reconciliation

The following table shows: 1) weighted average basic shares, 2) potentially dilutive weighted average common shares related to stock options, unvested restricted stock awards and stock warrant, and 3) weighted average diluted shares. Basic EPS are calculated by dividing net income by the weighted average number of common shares outstanding during each period, excluding unvested restricted stock awards. Diluted EPS are calculated using the weighted average number of potentially dilutive common shares. The number of potentially dilutive common shares included in quarterly diluted EPS is computed using the average market prices during the three months included in the reporting period under the treasury stock method. The number of potentially dilutive common shares included in year-to-date diluted EPS is a year-to-date weighted average of potentially dilutive common shares included in each quarterly diluted EPS computation. We have two forms of our outstanding common stock: common stock and unvested restricted stock awards. Holders of unvested restricted stock awards receive non-forfeitable dividends at the same rate as common shareholders and they both share equally in undistributed earnings. Under the two-class method, the difference in EPS is not significant for these participating securities.

(in thousands, except per share data)	2016		2015		2014
Weighted average basic shares outstanding	6,073		5,966		5,893
Potentially dilutive common shares related to:
Stock options	34		41		43
Unvested restricted stock awards	8		5		5
Warrant	—		53		65
Weighted average diluted shares outstanding	6,115		6,065		6,006
Net income	$	23,134	$	18,441	$	19,771
Basic EPS	$	3.81	$	3.09	$	3.35
Diluted EPS	$	3.78	$	3.04	$	3.29
Weighted average anti-dilutive shares not included in the calculation of diluted EPS	64		36		45

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Investment Securities (Tables)

12 Months Ended

Dec. 31, 2016

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities and Held-to-maturity Securities Reconciliation

Our investment securities portfolio consists of obligations of state and political subdivisions, corporate bonds, U.S. government agency securities, including mortgage-backed securities (“MBS”) and collateralized mortgage obligations (“CMOs”) issued or guaranteed by Federal National Mortgage Association ("FNMA"), Federal Home Loan Mortgage Corporation ("FHLMC"), or Government National Mortgage Association ("GNMA"), debentures issued by government-sponsored agencies such as FNMA, Federal Farm Credit Bureau, FHLB and FHLMC, as well as privately issued CMOs, as reflected in the table below:

	December 31, 2016									December 31, 2015
	Amortized		Fair		Gross Unrealized					Amortized		Fair		Gross Unrealized
(in thousands)	Cost		Value		Gains		(Losses)			Cost		Value		Gains		(Losses)
Held-to-maturity:
Obligations of state and   political subdivisions	$	30,856	$	31,544	$	694	$	(6	)	$	42,919	$	44,146	$	1,246	$	(19	)
Corporate bonds	3,519		3,518		—		(1		)	15,072		15,098		42		(16		)
MBS pass-through securities issued by FHLMC and FNMA	10,063		10,035		126		(154		)	11,646		11,810		171		(7		)
Total held-to-maturity	44,438		45,097		820		(161		)	69,637		71,054		1,459		(42		)
Available-for-sale:
Securities of U.S. government agencies:
MBS pass-through securities issued by FHLMC and FNMA	193,998		190,566		145		(3,577		)	138,222		138,462		694		(454		)
CMOs issued by FNMA	13,790		13,772		91		(109		)	18,266		18,219		97		(144		)
CMOs issued by FHLMC	43,452		42,758		37		(731		)	22,889		22,932		82		(39		)
CMOs issued by GNMA	6,844		6,945		102		(1		)	10,326		10,480		169		(15		)
Debentures of government- sponsored agencies	35,486		35,403		7		(90		)	161,690		160,892		28		(826		)
Privately issued CMOs	419		419		1		(1		)	3,960		4,150		190		—
Obligations of state and political subdivisions	79,306		77,701		135		(1,740		)	57,110		57,673		580		(17		)
Corporate bonds	4,959		5,016		57		—			4,947		4,979		43		(11		)
Total available-for-sale	378,254		372,580		575		(6,249		)	417,410		417,787		1,883		(1,506		)
Total investment securities	$	422,692	$	417,677	$	1,395	$	(6,410	)	$	487,047	$	488,841	$	3,342	$	(1,548	)

Investments Classified by Contractual Maturity Date

The amortized cost and fair value of investment debt securities by contractual maturity at December 31, 2016 are shown below. Expected maturities may differ from contractual maturities if the issuers of the securities have the right to call or prepay obligations with or without call or prepayment penalties.

	December 31, 2016								December 31, 2015
	Held-to-Maturity				Available-for-Sale				Held-to-Maturity				Available-for-Sale
(in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Within one year	$	13,473	$	13,506	$	20,136	$	20,109	$	18,853	$	18,920	$	12,135	$	12,176
After one but within five years	16,706		17,150		58,334		58,267		31,677		32,360		188,007		187,326
After five years through ten years	3,000		3,125		113,576		110,842		8,580		8,969		64,899		64,999
After ten years	11,259		11,316		186,208		183,362		10,527		10,805		152,369		153,286
Total	$	44,438	$	45,097	$	378,254	$	372,580	$	69,637	$	71,054	$	417,410	$	417,787

Schedule of Unrealized Loss on Investments

Those securities are summarized and classified according to the duration of the loss period in the tables below:

December 31, 2016	< 12 continuous months					≥ 12 continuous months					Total securities  in a loss position
(in thousands)	Fair value		Unrealized loss			Fair value		Unrealized loss			Fair value		Unrealized loss
Held-to-maturity:
MBS pass-through securities issued by FHLMC and FNMA	$	2,250	$	(154	)						$	2,250	$	(154	)
Obligations of state and political subdivisions	3,362		(6		)						3,362		(6		)
Corporate bonds	3,518		(1		)						3,518		(1		)
Total held-to-maturity	9,130		(161		)	—		—			9,130		(161		)
Available-for-sale:
MBS pass-through securities issued by FHLMC and FNMA	162,016		(3,577		)						162,016		(3,577		)
CMOs issued by FNMA	9,498		(109		)						9,498		(109		)
CMOs issued by FHLMC	31,545		(731		)						31,545		(731		)
CMOs issued by GNMA	1,583		(1		)						1,583		(1		)
Debentures of government- sponsored agencies	19,951		(38		)	9,946		(52		)	29,897		(90		)
Obligations of state and political subdivisions	59,567		(1,740		)						59,567		(1,740		)
Privately issued CMO's	154		(1		)						154		(1		)
Total available-for-sale	284,314		(6,197		)	9,946		(52		)	294,260		(6,249		)
Total temporarily impaired securities	$	293,444	$	(6,358	)	$	9,946	$	(52	)	$	303,390	$	(6,410	)

December 31, 2015	< 12 continuous months					> 12 continuous months					Total securities  in a loss position
(in thousands)	Fair value		Unrealized loss			Fair value		Unrealized loss			Fair value		Unrealized loss
Held-to-maturity:
MBS pass-through securities issued by FHLMC and FNMA	$	2,332	$	(7	)	$	—	$	—		$	2,332	$	(7	)
Obligations of state and political subdivisions	8,297		(19		)	—		—			8,297		(19		)
Corporate bonds	3,523		(15		)	1,999		(1		)	5,522		(16		)
Total held-to-maturity	14,152		(41		)	1,999		(1		)	16,151		(42		)
Available-for-sale:
MBS pass-through securities issued by FHLMC and FNMA	68,809		(454		)	—		—			68,809		(454		)
CMOs issued by FNMA	9,277		(80		)	3,158		(64		)	12,435		(144		)
CMOs issued by FHLMC	—		—			1,989		(39		)	1,989		(39		)
CMOs issued by GNMA	164		—			2,374		(15		)	2,538		(15		)
Debentures of government- sponsored agencies	136,064		(713		)	9,887		(113		)	145,951		(826		)
Obligations of state and political subdivisions	4,557		(15		)	579		(2		)	5,136		(17		)
Corporate bonds	2,986		(11		)	—		—			2,986		(11		)
Total available-for-sale	221,857		(1,273		)	17,987		(233		)	239,844		(1,506		)
Total temporarily impaired securities	$	236,009	$	(1,314	)	$	19,986	$	(234	)	$	255,995	$	(1,548	)

Gain (Loss) on Investments [Table Text Block]

Sales of investment securities and gross gains and losses are shown in the following table. The sales of the held-to-maturity securities were due to evidence of significant deterioration of the issuers' creditworthiness since purchase.

(in thousands)	2016			2015			2014
Available-for-sale:
Sales proceeds	$	68,673		$	2,099		$	2,436
Gross realized gains	$	458		$	7		$	4
Gross realized losses	$	(64	)	$	(1	)	$	(28	)
Held-to-maturity:
Sales proceeds	$	1,265		$	1,015		$	2,146
Gross realized gains	$	32		$	73		$	104
Gross realized losses	$	—		$	—		$	—

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Loans and Allowance for Loan Losses (Tables)

12 Months Ended

Dec. 31, 2016

Receivables [Abstract]

Past Due Financing Receivables

The following table shows outstanding loans by class and payment aging as of December 31, 2016 and 2015.

Loan Aging Analysis by Class
(in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential 1		Installment and other consumer		Total
December 31, 2016
30-59 days past due	$	283	$	—	$	—	$	—	$	77	$	—	$	2	$	362
60-89 days past due	—		—		—		—				—		49		49
90 days or more past due	—		—		—		—		91		—		—		91
Total past due	283		—		—		—		168		—		51		502
Current	218,332		247,713		724,228		74,809		117,039		78,549		25,444		1,486,114
Total loans 3	$	218,615	$	247,713	$	724,228	$	74,809	$	117,207	$	78,549	$	25,495	$	1,486,616
Non-accrual loans 2	$	—	$	—	$	—	$	—	$	91	$	—	$	54	$	145
December 31, 2015
30-59 days past due	$	36	$	—	$	1,096	$	1	$	—	$	—	$	249	$	1,382
60-89 days past due	—		—		—		—		633		—		89		722
90 days or more past due	21		—		—		—		99		—		—		120
Total past due	57		—		1,096		1		732		—		338		2,224
Current	219,395		242,309		714,783		65,494		111,568		73,154		22,301		1,449,004
Total loans 3	$	219,452	$	242,309	$	715,879	$	65,495	$	112,300	$	73,154	$	22,639	$	1,451,228
Non-accrual loans 2	$	21	$	—	$	1,903	$	1	$	171	$	—	$	83	$	2,179

¹ Our residential loan portfolio does not include sub-prime loans, nor is it our practice to underwrite loans commonly referred to as "Alt-A mortgages," the characteristics of which are loans lacking full documentation, borrowers having low FICO scores or higher loan-to-value ratios.

² There were no purchased credit impaired ("PCI") loans that had stopped accreting interest at December 31, 2016. Amounts include $1 thousand of PCI loans that had stopped accreting interest at December 31, 2015. Amounts exclude accreting PCI loans of $2.9 million and $3.7 million at December 31, 2016 and 2015, respectively, as we have a reasonable expectation about future cash flows to be collected and we continue to recognize accretable yield on these loans in interest income. There were no accruing loans past due more than ninety days at December 31, 2016 or 2015.

³ Amounts include net deferred loan origination costs of $883 thousand and $768 thousand at December 31, 2016 and 2015, respectively. Amounts are also net of unaccreted purchase discounts on non-PCI loans of $1.8 million and $3.2 million at December 31, 2016 and 2015, respectively.

Financing Receivable Credit Quality Indicators

The following table represents an analysis of the carrying amount in loans, net of deferred fees or costs and purchase premiums or discounts, by internally assigned risk grades, including PCI loans, at December 31, 2016 and 2015.

Credit Risk Profile by Internally Assigned Risk Grade
(in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential		Installment and other consumer		Purchased credit-impaired		Total
December 31, 2016
Pass	$	201,987	$	234,849	$	720,417	$	71,564	$	115,680	$	78,549	$	25,083	$	2,920	$	1,451,049
Special Mention	9,197		4,799		607		—		1,334		—		—		—		15,937
Substandard	7,391		6,993		1,498		3,245		91		—		412		—		19,630
Total loans	$	218,575	$	246,641	$	722,522	$	74,809	$	117,105	$	78,549	$	25,495	$	2,920	$	1,486,616
December 31, 2015
Pass	$	192,560	$	219,060	$	710,042	$	62,255	$	109,959	$	73,154	$	22,307	$	3,260	$	1,392,597
Special Mention	22,457		12,371		372		—		1,100		—		—		—		36,300
Substandard	4,260		9,167		3,739		3,239		1,173		—		332		421		22,331
Total loans	$	219,277	$	240,598	$	714,153	$	65,494	$	112,232	$	73,154	$	22,639	$	3,681	$	1,451,228

Troubled Debt Restructurings on Financing Receivables

The table below summarizes the carrying amount of TDR loans by loan class as of December 31, 2016 and December 31, 2015. The summary includes both TDRs that are on non-accrual status and those that continue to accrue interest.

(in thousands)	As of
Recorded investment in Troubled Debt Restructurings 1	December 31, 2016		December 31, 2015
Commercial and industrial	$	2,207	$	4,698
Commercial real estate, owner-occupied	6,993		6,993
Commercial real estate, investor	2,256		514
Construction 2	3,245		3,238
Home equity	625		460
Other residential	1,965		2,010
Installment and other consumer	877		1,168
Total	$	18,168	$	19,081

¹ There were no TDR loans on non-accrual status at December 31, 2016 and $72 thousand in TDR loans on non-accrual status as of December 31, 2015. Includes no acquired loans as of December 31, 2016 and $137 thousand in acquired loans at December 31, 2015.

² In 2015, one TDR loan was transferred to loans held-for-sale at fair value totaling $1.5 million, net of an $839 thousand charge-off to the allowance for loan losses. The loan was subsequently sold in 2015 for no additional gain or loss.

The table below presents the following information for loans modified in a TDR during the presented periods: number of contracts modified, the recorded investment in the loans prior to modification, and the recorded investment in the loans after being restructured. The table below excludes fully charged-off TDR loans and loans modified in a TDR and subsequently paid-off during the years presented.

(dollars in thousands)	Number of Contracts Modified	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment at Period End
TDRs modified during 2016:
Commercial real estate, investor	2	$	1,830	$	1,826	$	1,752
Home equity 1	1	$	87	$	222	$	245
Installment and other consumer	1	$	68	$	67	$	66
Total	4	$	1,985	$	2,115	$	2,063
1 The home equity line of credit modified in 2016 included debt consolidation, which increased the post-modification balance.
TDRs modified during 2015:
Commercial and industrial	7	$	3,271	$	3,251	$	2,811
TDRs modified during 2014:
Commercial and industrial	6	$	1,039	$	1,258	$	1,251
Commercial real estate, owner occupied	1	4,226		4,216		4,175
Commercial real estate, investor	2	224		224		220
Construction	2	964		1,312		1,309
Installment and other consumer	6	281		278		268
Total	17	$	6,734	$	7,288	$	7,223

Impaired Financing Receivables

The table below summarizes information by class on impaired loans and their related allowances. Total impaired loans include non-accrual loans, accruing TDR loans and accreting PCI loans that have experienced post-acquisition declines in cash flows expected to be collected.

(in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential		Installment and other consumer		Total
December 31, 2016
Recorded investment in impaired loans:
With no specific allowance recorded	$	315	$	—	$	—	$	2,692	$	91	$	1,008	$	103	$	4,209
With a specific allowance recorded	1,892		6,993		2,256		553		624		957		829		14,104
Total recorded investment in impaired loans	$	2,207	$	6,993	$	2,256	$	3,245	$	715	$	1,965	$	932	$	18,313
Unpaid principal balance of impaired loans	$	2,177	$	6,993	$	2,252	$	3,238	$	713	$	1,965	$	932	$	18,270
Specific allowance	$	285	$	163	$	375	$	8	$	7	$	55	$	98	$	991
Average recorded investment in impaired loans during 2016	$	3,514	$	7,069	$	2,950	$	3,242	$	945	$	1,988	$	1,127	$	20,835
Interest income recognized on impaired loans during 2016 1	$	175	$	199	$	1,514	$	137	$	60	$	90	$	48	$	2,223
December 31, 2015
Recorded investment in impaired loans:
With no specific allowance recorded	$	2,198	$	4,111	$	2,416	$	2,687	$	171	$	1,214	$	131	$	12,928
With a specific allowance recorded	2,522		2,882		—		551		388		797		1,120		8,260
Total recorded investment in impaired loans	$	4,720	$	6,993	$	2,416	$	3,238	$	559	$	2,011	$	1,251	$	21,188
Unpaid principal balance of impaired loans	$	4,763	$	6,993	$	4,408	$	3,424	$	559	$	2,011	$	1,251	$	23,409
Specific allowance	$	912	$	70	$	—	$	1	$	3	$	67	$	116	$	1,169
Average recorded investment in impaired loans during 2015	$	4,237	$	7,886	$	2,833	$	4,164	$	602	$	2,028	$	1,523	$	23,273
Interest income recognized on impaired loans during 2015 1	$	238	$	295	$	33	$	86	$	18	$	92	$	64	$	826
Average recorded investment in impaired loans during 2014	$	5,354	$	6,604	$	3,138	$	6,471	$	741	$	1,744	$	1,857	$	25,909
Interest income recognized on impaired loans during 2014 1	$	378	$	288	$	28	$	85	$	19	$	74	$	76	$	948
1 Interest income recognized on a cash basis totaled $1.4 million in 2016 and was primarily related to the interest recovery upon the pay-off of a partially charged off non-accrual commercial real estate loan during the third quarter. No interest interest income on impaired loans was recognized on a cash basis in 2015 and 2014.

Allowance for Credit Losses on Financing Receivables

The following tables disclose activity in the ALLL and the recorded investment in loans by class, as well as the related ALLL disaggregated by impairment evaluation method.

Allowance for Loan Losses Rollforward for the Period
(in thousands)	Commercial and industrial			Commercial real estate, owner-occupied			Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated		Total
Year ended December 31, 2016
Beginning balance	$	3,023		$	2,249		$	6,178		$	724		$	910		$	394		$	425		$	1,096	$	14,999
Provision (reversal)	93			(476		)	(2,014		)	57			60			60			(75		)	445		(1,850		)
Charge-offs	(11		)	(20		)	—			—			—			—			(5		)	—		(36		)
Recoveries	143			—			2,156			—			3			—			27			—		2,329
Ending balance	$	3,248		$	1,753		$	6,320		$	781		$	973		$	454		$	372		$	1,541	$	15,442
Year ended December 31, 2015
Beginning balance	$	2,837		$	1,924		$	6,672		$	839		$	859		$	433		$	566		$	969	$	15,099
Provision (reversal)	(45		)	325			(517		)	724			48			(39		)	(123		)	127		500
Charge-offs	(5		)	—			—			(839		)	—			—			(20		)	—		(864		)
Recoveries	236			—			23			—			3			—			2			—		264
Ending balance	$	3,023		$	2,249		$	6,178		$	724		$	910		$	394		$	425		$	1,096	$	14,999
Year ended December 31, 2014
Beginning balance	$	3,056		$	2,012		$	6,196		$	633		$	875		$	317		$	629		$	506	$	14,224
Provision (reversal)	(321		)	(93		)	431			314			(19		)	116			(141		)	463		750
Charge-offs	(66		)	—			—			(204		)	—			—			(7		)	—		(277		)
Recoveries	168			5			45			96			3			—			85			—		402
Ending balance	$	2,837		$	1,924		$	6,672		$	839		$	859		$	433		$	566		$	969	$	15,099

Allowance for Loan Losses and Recorded Investment In Loans
(dollars in thousands)	Commercial and industrial			Commercial real estate, owner-occupied			Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated		Total
December 31, 2016
Ending ALLL related to loans collectively evaluated for impairment	$	2,963		$	1,590		$	5,945		$	773		$	966		$	399		$	274		$	1,541	$	14,451
Ending ALLL related to loans  individually evaluated for impairment	285			163			375			8			7			55			98			—		991
Ending ALLL related to purchased  credit-impaired loans	—			—			—			—			—			—			—			—		—
Ending balance	$	3,248		$	1,753		$	6,320		$	781		$	973		$	454		$	372		$	1,541	$	15,442
Recorded Investment:
Collectively evaluated for impairment	$	216,368		$	239,648		$	720,266		$	71,564		$	116,390		$	76,584		$	24,563		$	—	$	1,465,383
Individually evaluated for impairment	2,207			6,993			2,256			3,245			715			1,965			932			—		18,313
Purchased credit-impaired	40			1,072			1,706			—			102			—			—			—		2,920
Total	$	218,615		$	247,713		$	724,228		$	74,809		$	117,207		$	78,549		$	25,495		$	—	$	1,486,616
Ratio of allowance for loan losses to total loans	1.49		%	0.71		%	0.87		%	1.04		%	0.83		%	0.58		%	1.46		%	NM		1.04		%
Allowance for loan losses to non-accrual loans	NM			NM			NM			NM			1,071		%	NM			683		%	NM		10,650		%

NM - Not Meaningful

Allowance for Loan Losses and Recorded Investment In Loans
(dollars in thousands)	Commercial and industrial			Commercial real estate, owner-occupied			Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated		Total
December 31, 2015
Ending ALLL related to loans collectively evaluated for impairment	$	2,111		$	2,179		$	6,178		$	723		$	907		$	327		$	309		$	1,096	$	13,830
Ending ALLL related to loans  individually evaluated for impairment	904			70			—			—			3			67			116			—		1,160
Ending ALLL related to purchased  credit-impaired loans	8			—			—			1			—			—			—			—		9
Ending balance	$	3,023		$	2,249		$	6,178		$	724		$	910		$	394		$	425		$	1,096	$	14,999
Loans outstanding:
Collectively evaluated for impairment	$	214,695		$	233,605		$	711,737		$	62,256		$	111,673		$	71,143		$	21,388		$	—	$	1,426,497
Individually evaluated for impairment1	4,582			6,993			2,416			3,238			559			2,011			1,251			—		21,050
Purchased credit-impaired	175			1,711			1,726			1			68			—			—			—		3,681
Total	$	219,452		$	242,309		$	715,879		$	65,495		$	112,300		$	73,154		$	22,639		$	—	$	1,451,228
Ratio of allowance for loan losses to total loans	1.38		%	0.93		%	0.86		%	1.11		%	0.81		%	0.54		%	1.88		%	NM		1.03		%
Allowance for loan losses to non-accrual loans	14,395		%	NM			325		%	72,400		%	532		%	NM			512		%	NM		688		%

¹ Totals exclude $138 thousand in PCI loans that have experienced credit deterioration post-acquisition, which are included in the "purchased credit-impaired" amount in the next line below.

NM - Not Meaningful

Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period

The following table reflects the unpaid principal balance and related carrying value of PCI loans:

PCI Loans	December 31, 2016				December 31, 2015
(in thousands)	Unpaid Principal Balance		Carrying Value		Unpaid Principal Balance		Carrying Value
Commercial and industrial	$	45	$	40	$	237	$	175
Commercial real estate, owner occupied	1,344		1,072		2,573		1,711
Commercial real estate, investor	1,713		1,706		1,756		1,726
Construction	—		—		187		1
Home equity	248		102		224		68
Total purchased credit-impaired loans	$	3,350	$	2,920	$	4,977	$	3,681

Accretable Yield Activity

The activities in the accretable yield, or income expected to be earned over the remaining lives of the PCI loans were as follows:

Accretable Yield	Years ended
(in thousands)	December 31, 2016			December 31, 2015			December 31, 2014
Balance at beginning of period	$	2,618		$	4,027		$	3,649
Additions	—			—			—
Removals 1	(778		)	(914		)	(273		)
Accretion	(364		)	(495		)	(613		)
Reclassifications from nonaccretable difference 2	—			—			1,264
Balance at end of period	$	1,476		$	2,618		$	4,027
1 Represents the accretable difference that is relieved when a loan exits the PCI population due to payoff, full charge-off, or transfer to repossessed assets, etc.
2 Primarily relates to changes in expected credit performance and changes in expected timing of cash flows.

Schedule of Related Party Transactions

An analysis of net loans to related parties for each of the three years ended December 31, 2016, 2015 and 2014 is as follows:

(in thousands)	2016			2015			2014
Balance at beginning of year	$	2,562		$	3,329		$	3,749
Additions	—			—			—
Advances	—			165			—
Repayments	(574		)	(390		)	(420		)
Reclassified as unrelated-party loan due to a change in borrower status	—			(542		)	—
Balance at end of year	$	1,988		$	2,562		$	3,329

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Bank Premises and Equipment (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Summary of Bank Premises and Equipment

A summary of Bank premises and equipment at December 31 follows:

(in thousands)	2016			2015
Leasehold improvements	$	13,883		$	13,615
Furniture and equipment	10,627			9,887
Subtotal	24,510			23,502
Accumulated depreciation and amortization	(15,990		)	(14,197		)
Bank premises and equipment, net	$	8,520		$	9,305

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Deposits (Tables)

12 Months Ended

Dec. 31, 2016

Banking and Thrift [Abstract]

Schedule of Time Deposits

A stratification of time deposits at December 31, 2016 and 2015 is presented in the following table:

(in thousands)	December 31, 2016		December 31, 2015
Time deposits of less than $100 thousand	$	36,346	$	39,534
Time deposits of $100 thousand to $250 thousand	66,092		67,352
Time deposits of more than $250 thousand	49,025		54,571
Total time deposits	$	151,463	$	161,457

Schedule of Maturities for Time Deposits

Scheduled maturities of time deposits at December 31, 2016 are presented as follows:

(in thousands)	2017		2018		2019		2020		2021		Thereafter		Total
Scheduled maturities of time deposits	$	104,616	$	12,325	$	7,891	$	7,246	$	19,385	$	—	$	151,463

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Borrowings (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Schedule of Subordinated Debentures

The following is a summary of the contractual terms of the subordinated debentures due to the Trusts as of December 31, 2016:

(in thousands)
Subordinated debentures due to NorCal Community Bancorp Trust I on October 7, 2033 with interest payable quarterly, based on 3-month LIBOR plus 3.05%, repricing quarterly (3.93% as of December 31, 2016), redeemable, in whole or in part, on any interest payment date	$	4,124
Subordinated debentures due to NorCal Community Bancorp Trust II on March 15, 2036 with interest payable quarterly, based on 3-month LIBOR plus 1.40%, repricing quarterly (2.36% as of December 31, 2016), redeemable, in whole or in part, on any interest payment date	4,124
Total	$	8,248

Schedule of Borrowings

Borrowings at December 31, 2016 and 2015 are summarized as follows:

	2016							2015
(dollars in thousands)	Carrying Value		Average Balance		Average Rate			Carrying Value		Average Balance		Average Rate
FHLB overnight borrowings	$	—	$	5,383	0.42	%		$	52,000	$	784	0.38	%
FHLB fixed-rate advances	$	—	$	6,803	6.59	%	1	$	15,000	$	15,000	2.07	%
Subordinated debentures	$	5,586	$	5,493	7.80	%		$	5,395	$	5,288	7.94	%

¹ Amount includes the impact of the $312 thousand prepayment fee in 2016 discussed above.

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Stockholders' Equity and Stock Plans (Tables)

12 Months Ended

Dec. 31, 2016

Equity [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity

A summary of activity for stock options for the years ended December 31, 2016, 2015 and 2014 is presented below. The intrinsic value of options outstanding and exercisable is calculated as the number of in-the-money options times the difference between the market price of our stock as of each year end presented and the exercise prices of the in-the-money options.

	Number of Shares		Weighted Average Exercise Price		Aggregate Intrinsic Value (in thousands)		Weighted Average Grant-Date Fair Value		Weighted Average Remaining Contractual Term (in years)
Options outstanding at December 31, 2013	220,456		$	32.74	$	2,349			4.05
Granted	26,421		44.83				$	12.04
Cancelled, expired or forfeited	(2,790	)	39.01
Exercised	(49,415	)	29.39		771
Options outstanding at December 31, 2014	194,672		35.14		3,398				4.48
Exercisable (vested) at December 31, 2014	133,153		32.31		2,701				2.88
Options outstanding at December 31, 2014	194,672		35.14		3,398				4.48
Granted	28,320		50.70				12.21
Cancelled, expired or forfeited	(652	)	48.38
Exercised	(37,071	)	30.72		755
Options outstanding at December 31, 2015	185,269		38.35		2,788				5.00
Exercisable (vested) at December 31, 2015	114,581		34.12		2,209				3.21
Options outstanding at December 31, 2015	185,269		38.35		2,788				5.00
Granted	32,637		49.37				10.11
Exercised	(36,117	)	33.98		661
Options outstanding at December 31, 2016	181,789		41.20		5,190				5.77
Exercisable (vested) at December 31, 2016	103,211		36.65		3,416				4.18

Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding

The following table shows the number, weighted average exercise price, intrinsic value, and weighted average remaining contractual life of options outstanding, vested and expected to vest as of December 31, 2016.

Number of options	177,122
Weighted average exercise price	$	41.03
Aggregate intrinsic value (in thousands)	$	5,086
Weighted average remaining contractual term (in years)	5.71

Schedule of Unrecognized Compensation Cost, Nonvested Awards

The following table summarizes non-vested restricted stock awards and changes during the years ended December 31, 2016, 2015 and 2014.

	Restricted Stock Awards
	Number of Shares		Weighted Average Grant-Date Fair Value
Non-vested awards at December 31, 2013	22,521		$	37.59
Granted	8,523		45.36
Vested	(6,554	)	34.65
Forfeited	(2,067	)	39.32
Non-vested awards at December 31, 2014	22,423		41.25
Granted	15,970		50.75
Vested	(6,555	)	40.00
Forfeited	(450	)	48.45
Non-vested awards at December 31, 2015	31,388		46.24
Granted	16,910		49.65
Vested	(8,599	)	44.14
Non-vested awards at December 31, 2016	39,699		48.15

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

A summary of the options outstanding and exercisable by price range as of December 31, 2016 is presented in the following table:

	Stock Options Outstanding as of December 31, 2016				Stock Options Exercisable as of December 31, 2016
Range of Exercise Prices	Stock Options Outstanding	Remaining Contractual Life (in years)	Weighted Average Exercise Price		Stock Options Exercisable	Weighted Average Exercise Price
$20.00 - $25.00	13,138	2.3	$	22.25	13,138	$	22.25
$25.01 - $30.00	10,180	1.3	28.75		10,180	28.75
$30.01 - $35.00	9,195	3.3	33.10		9,195	33.10
$35.01 - $40.00	46,588	4.1	37.70		39,038	37.48
$40.01 - $45.00	29,551	5.9	41.95		17,130	41.91
$45.01 - $50.00	45,187	8.7	48.40		5,020	45.88
$50.01 - $55.00	27,950	7.9	50.70		9,510	50.69
	181,789				103,211

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

We determine the fair value of stock options at the grant date using the Black-Scholes pricing model that takes into account the stock price at the grant date, the exercise price, and the following assumptions (weighted-average shown).

	Years ended December 31,
	2016		2015		2014
Risk-free interest rate	1.37	%	1.67	%	2.04	%
Expected dividend yield on common stock	2.02	%	1.75	%	1.70	%
Expected life in years	6.0		6.0		6.0
Expected price volatility	25.56	%	28.06	%	30.32	%

Summary of Cash Dividends Paid to Common Shareholders

Presented below is a summary of cash dividends paid to common shareholders, recorded as a reduction of retained earnings. On January 20, 2017, the Board of Directors declared a cash dividend of $0.27 per share, payable on February 10, 2017 to shareholders of record at the close of business on February 3, 2017.

	Years ended December 31,
(in thousands except per share data)	2016		2015		2014
Cash dividends to common stockholders	$	6,223	$	5,390	$	4,733
Cash dividends per common share	$	1.02	$	0.90	$	0.80

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Fair Value of Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2016

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following table summarizes our assets and liabilities that were required to be recorded at fair value on a recurring basis.

(in thousands) Description of Financial Instruments	Carrying Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
December 31, 2016
Securities available for sale:
Mortgage-backed securities and collaterized mortgage obligations issued by U.S. government agencies	$	254,041	$	—	$	253,434	$	607
Debentures of government sponsored agencies	$	35,403	$	—	$	35,403	$	—
Privately-issued collateralized mortgage obligations	$	419	$	—	$	419	$	—
Obligations of state and political subdivisions	$	77,701	$	—	$	77,701	$	—
Corporate bonds	$	5,016	$	—	$	5,016	$	—
Derivative financial assets (interest rate contracts)	$	55	$	—	$	55	$	—
Derivative financial liabilities (interest rate contracts)	$	933	$	—	$	933	$	—
December 31, 2015
Securities available for sale:
Mortgage-backed securities and collaterized mortgage obligations issued by U.S. government agencies	$	190,093	$	—	$	188,381	$	1,712
Debentures of government sponsored agencies	$	160,892	$	—	$	160,892	$	—
Privately-issued collateralized mortgage obligations	$	4,150	$	—	$	4,150	$	—
Obligations of state and political subdivisions	$	57,673	$	—	$	57,673	$	—
Corporate bonds	$	4,979	$	—	$	4,979	$	—
Derivative financial assets (interest rate contracts)	$	3	$	—	$	3	$	—
Derivative financial liabilities (interest rate contracts)	$	1,658	$	—	$	1,658	$	—

Fair Value Measurements, Nonrecurring

The following table presents the carrying value of assets and liabilities measured at fair value on a non-recurring basis and that were held in the consolidated statements of condition at each respective period end, by level within the fair value hierarchy as of December 31, 2016 and 2015.

(in thousands) Description of Financial Instruments	Carrying Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs  (Level 3)
December 31, 2016
Other real estate	$	408	$	—	$	—	$	408
December 31, 2015
Other real estate	$	421	$	—	$	—	$	421

Fair Value, by Balance Sheet Grouping

The table below is a summary of fair value estimates for financial instruments as of December 31, 2016 and 2015, excluding financial instruments recorded at fair value on a recurring basis (summarized in the first table in this note). The carrying amounts in the following table are recorded in the consolidated statements of condition under the indicated captions. Further, we have not disclosed the fair value of financial instruments specifically excluded from disclosure requirements of the Financial Instruments Topic of the Codification (ASC 825-10-50-8), such as BOLI. Additionally, we hold shares of FHLB stock and Visa Inc. Class B common stock at cost. These shares are restricted from resale and their values were discussed in Note 2, Investment Securities, above.

	December 31, 2016					December 31, 2015
(in thousands)	Carrying Amounts		Fair Value		Fair Value Hierarchy	Carrying Amounts		Fair Value		Fair Value Hierarchy
Financial assets:
Cash and cash equivalents	$	48,804	$	48,804	Level 1	$	26,343	$	26,343	Level 1
Investment securities held-to-maturity	44,438		45,097		Level 2	69,637		71,054		Level 2
Loans, net	1,471,174		1,473,360		Level 3	1,436,229		1,470,380		Level 3
Interest receivable	6,319		6,319		Level 2	6,643		6,643		Level 2
Financial liabilities:
Deposits	1,772,700		1,773,102		Level 2	1,728,226		1,728,717		Level 2
Federal Home Loan Bank borrowing	—		—		Level 2	67,000		67,279		Level 2
Subordinated debentures	5,586		5,083		Level 3	5,395		5,132		Level 3
Interest payable	134		134		Level 2	187		187		Level 2

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

The current and deferred components of the income tax provision for each of the three years ended December 31 are as follows:

(in thousands)	2016			2015		2014
Current tax provision
Federal	$	9,710		$	7,097	$	8,523
State	3,794			2,931		3,195
Total current	13,504			10,028		11,718
Deferred tax provision (benefit)
Federal	(206		)	382		(146		)
State	48			80		126
Total deferred	(158		)	462		(20		)
Total income tax provision	$	13,346		$	10,490	$	11,698

Schedule of Deferred Tax Assets and Liabilities

The following table shows the tax effect of our cumulative temporary differences as of December 31:

(in thousands)	2016			2015
Deferred tax assets:
Allowance for loan losses and off-balance sheet credit commitments	$	6,871		$	5,918
Net operating loss carryforwards	3,582			4,090
Net unrealized loss on securities available-for-sale	2,543			59
Deferred compensation plan and salary continuation plan	1,773			1,619
State franchise tax	1,300			1,005
Accrued but unpaid expenses	1,251			1,188
Fair value adjustment on acquired loans	799			1,197
Deferred rent and other lease incentives	547			595
Depreciation and disposals on premises and equipment	528			231
Other real estate owned	448			448
Stock-based compensation	398			273
Interest received on non-accrual loans	185			864
Other	196			381
Total gross deferred tax assets	20,421			17,868
Deferred tax liabilities:
Deferred loan origination costs and fees	(2,784		)	(2,567		)
Unaccreted discount on subordinated debentures	(1,119		)	(1,200		)
Core deposit intangible asset	(1,085		)	(1,309		)
Accretion on investment securities	(54		)	(55		)
Other	(42		)	(42		)
Total gross deferred tax liabilities	(5,084		)	(5,173		)
Net deferred tax assets	$	15,337		$	12,695

Schedule of Effective Income Tax Rate Reconciliation

The effective tax rate for 2016, 2015 and 2014 differs from the current federal statutory income tax rate as follows:

	2016		2015		2014
Federal statutory income tax rate	35.0	%	35.0	%	35.0	%
Increase (decrease) due to:
California franchise tax, net of federal tax benefit	6.8	%	6.8	%	6.8	%
Tax exempt interest on municipal securities and loans	(4.0	)%	(4.2	)%	(3.3	)%
Tax exempt earnings on bank owned life insurance	(0.8	)%	(1.0	)%	(0.9	)%
Low income housing and qualified zone academy bond tax credits	(0.3	)%	(0.2	)%	(0.1	)%
Other	(0.1	)%	(0.1	)%	(0.3	)%
Effective Tax Rate	36.6	%	36.3	%	37.2	%

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Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases

At December 31, 2016, the approximate minimum future commitments payable under non-cancelable contracts for leased premises are as follows:

(in thousands)	2017		2018		2019		2020		2021		Thereafter		Total
Operating leases1	$	3,850	$	3,919	$	3,725	$	3,405	$	2,114	$	4,069	$	21,082

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Derivative Financial Instruments and Hedging Activities (Tables)

12 Months Ended

Dec. 31, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value

Information on our derivatives follows:

	Asset derivatives				Liability derivatives
(in thousands)	December 31, 2016		December 31, 2015		December 31, 2016		December 31, 2015
Fair value hedges:
Interest rate contracts notional amount	$	4,217	$	4,407	$	15,495	$	22,187
Interest rate contracts fair value 1	$	55	$	3	$	933	$	1,658

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance

	Years ended December 31,
(in thousands)	2016			2015			2014
Increase (decrease) in value of designated interest rate swaps due to LIBOR interest rate movements recognized in interest income	$	778		$	280		$	(377	)
Payment on interest rate swaps recorded in interest income	(556		)	(918		)	(1,002		)
(Decrease) increase in value of hedged loans recognized in interest income	(571		)	(308		)	662
Decrease in value of yield maintenance agreement recognized against interest income	(94		)	(52		)	(91		)
Net loss on derivatives recognized against interest income 2	$	(443	)	$	(998	)	$	(808	)

¹ See Note 9, Fair Value of Assets and Liabilities for valuation methodology.

² Includes hedge ineffectiveness gain of $113 thousand, loss of $80 thousandand gain of $194 thousand for the years December 31, 2016, 2015 and 2014, respectively. Changes in value of swaps were included in the assessment of hedge effectiveness. Hedge ineffectiveness is the measure of the extent to which the change in the fair value of the hedging instruments does not exactly offset the change in the fair value of the hedged items from period to period.

Offsetting Assets

Information on financial instruments that are eligible for offset in the consolidated statements of condition follows:

Offsetting of Financial Assets and Derivative Assets
							Gross Amounts Not Offset in the Statements of Condition
			Gross Amounts		Net Amounts
	Gross Amounts		Offset in the		of Assets Presented
	of Recognized		Statements of		in the Statements		Financial			Cash Collateral
(in thousands)	Assets1		Condition		of Condition1		Instruments			Received		Net Amount
December 31, 2016
Derivatives by Counterparty:
Counterparty A	$	55			$	55	$	(55	)			$	—
Total	$	55	$	—	$	55	$	(55	)	$	—	$	—
December 31, 2015
Derivatives by Counterparty:
Counterparty A	$	3	$	—	$	3	$	(3	)	$	—	$	—
Total	$	3	$	—	$	3	$	(3	)	$	—	$	—

¹ Amounts exclude accrued interest totaling $1 thousand at both December 31, 2016 and December 31, 2015, respectively.

Offsetting of Financial Liabilities and Derivative Liabilities
							Gross Amounts Not Offset in the Statements of Condition
			Gross Amounts		Net Amounts of
	Gross Amounts		Offset in the		Liabilities Presented
	of Recognized		Statements of		in the Statements of		Financial			Cash Collateral
(in thousands)	Liabilities2		Condition		Condition2		Instruments			Pledged			Net Amount
December 31, 2016
Derivatives by Counterparty:
Counterparty A	$	933			$	933	$	(55	)	(878		)	$	—
Total	$	933	$	—	$	933	$	(55	)	$	(878	)	$	—
December 31, 2015
Derivatives by Counterparty:
Counterparty A	$	1,390	$	—	$	1,390	$	(3	)	$	(1,387	)	$	—
Counterparty B	268		—		268		—			(268		)	—
Total	$	1,658	$	—	$	1,658	$	(3	)	$	(1,655	)	$	—

Offsetting Liabilities

Offsetting of Financial Liabilities and Derivative Liabilities
							Gross Amounts Not Offset in the Statements of Condition
			Gross Amounts		Net Amounts of
	Gross Amounts		Offset in the		Liabilities Presented
	of Recognized		Statements of		in the Statements of		Financial			Cash Collateral
(in thousands)	Liabilities2		Condition		Condition2		Instruments			Pledged			Net Amount
December 31, 2016
Derivatives by Counterparty:
Counterparty A	$	933			$	933	$	(55	)	(878		)	$	—
Total	$	933	$	—	$	933	$	(55	)	$	(878	)	$	—
December 31, 2015
Derivatives by Counterparty:
Counterparty A	$	1,390	$	—	$	1,390	$	(3	)	$	(1,387	)	$	—
Counterparty B	268		—		268		—			(268		)	—
Total	$	1,658	$	—	$	1,658	$	(3	)	$	(1,655	)	$	—

² Amounts exclude accrued interest totaling $12 thousand and $27 thousand at December 31, 2016 and December 31, 2015, respectively.

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Regulatory Matters (Tables)

12 Months Ended

Dec. 31, 2016

Banking and Thrift [Abstract]

Schedule of Capital Adequacy Ratios

The Bancorp’s and Bank's capital adequacy ratios as of December 31, 2016 and 2015 are presented in the following tables. Bancorp's Tier 1 capital includes the subordinated debentures, which are not included at the Bank level. We continued to build capital in 2016 through the accumulation of net income.

Capital Ratios for Bancorp (dollars in thousands)	Actual Ratio				Adequately Capitalized Threshold 1				Ratio to be a Well Capitalized Bank Holding Company
December 31, 2016	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total Capital (to risk-weighted assets)	$	247,453	14.32	%	≥ $	149,039	≥ 8.625	%	≥ $	172,799	≥ 10.000	%
Tier 1 Capital (to risk-weighted assets)	$	231,111	13.37	%	≥ $	114,479	≥ 6.625	%	≥ $	138,239	≥ 8.000	%
Tier 1 Capital (to average assets)	$	231,111	11.39	%	≥ $	81,189	≥ 4.000	%	≥ $	101,486	≥ 5.000	%
Common Equity Tier 1 (to risk-weighted assets)	$	225,925	13.07	%	≥ $	88,559	≥ 5.125	%	≥ $	112,319	≥ 6.500	%
December 31, 2015
Total Capital (to risk-weighted assets)	$	227,269	13.37	%	≥ $	135,996	≥ 8.000	%	≥ $	169,995	≥ 10.000	%
Tier 1 Capital (to risk-weighted assets)	$	211,521	12.44	%	≥ $	101,997	≥ 6.000	%	≥ $	135,996	≥ 8.000	%
Tier 1 Capital (to average assets)	$	211,521	10.67	%	≥ $	79,296	≥ 4.000	%	≥ $	99,120	≥ 5.000	%
Common Equity Tier 1 (to risk-weighted assets)	$	206,724	12.16	%	≥ $	76,498	≥ 4.500	%	≥ $	110,497	≥ 6.500	%
1 The 2016 adequately capitalized threshold includes the capital conservation buffer that was effective January 1, 2016. These ratios are not reflected on a fully phased-in basis, which will occur in January 2019.

Capital Ratios for the Bank (dollars in thousands)	Actual Ratio				Adequately Capitalized Threshold 1				Ratio to be Well Capitalized under Prompt Corrective Action Provisions
December 31, 2016	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total Capital (to risk-weighted assets)	$	243,468	14.09	%	≥ $	149,016	≥ 8.625	%	≥ $	172,772	≥ 10.000	%
Tier 1 Capital (to risk-weighted assets)	$	227,127	13.15	%	≥ $	114,462	≥ 6.625	%	≥ $	138,218	≥ 8.000	%
Tier 1 Capital (to average assets)	$	227,127	11.19	%	≥ $	81,176	≥ 4.000	%	≥ $	101,469	≥ 5.000	%
Common Equity Tier 1 (to risk-weighted assets)	$	227,127	13.15	%	≥ $	88,546	≥ 5.125	%	≥ $	112,302	≥ 6.500	%
December 31, 2015
Total Capital (to risk-weighted assets)	$	222,830	13.11	%	≥ $	135,968	≥ 8.000	%	≥ $	169,960	≥ 10.000	%
Tier 1 Capital (to risk-weighted assets)	$	207,082	12.18	%	≥ $	101,976	≥ 6.000	%	≥ $	135,968	≥ 8.000	%
Tier 1 Capital (to average assets)	$	207,082	10.45	%	≥ $	79,268	≥ 4.000	%	≥ $	99,085	≥ 5.000	%
Common Equity Tier 1 (to risk-weighted assets)	$	207,082	12.18	%	≥ $	76,482	≥ 4.500	%	≥ $	110,474	≥ 6.500	%
1 The 2016 adequately capitalized threshold includes the capital conservation buffer that was effective January 1, 2016. These ratios are not reflected on a fully phased-in basis, which will occur in January 2019.

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Financial Instruments with Off-Balance Sheet Risk Financial Instruments with Off-Balance Sheet Risk (Tables)

12 Months Ended

Dec. 31, 2016

Fair Value Disclosures [Abstract]

Schedule of Contractual Amount, Off-Balance Sheet Risks

The contractual amount of undrawn loan commitments and standby letters of credit not reflected on the consolidated statements of condition are as follows:

(in thousands)	December 31, 2016		December 31, 2015
Commercial lines of credit	$	216,774	$	191,305
Revolving home equity lines	148,143		130,359
Undisbursed construction loans	44,798		39,442
Personal and other lines of credit	10,635		11,112
Standby letters of credit	1,939		4,381
Total commitments and standby letters of credit	$	422,289	$	376,599

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Condensed Bank of Marin Bancorp Parent Only Financial Statements (Tables)

12 Months Ended

Dec. 31, 2016

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Schedule of Condensed Balance Sheet

Presented below is financial information for Bank of Marin Bancorp, parent holding company only.

CONDENSED UNCONSOLIDATED STATEMENTS OF CONDITION
December 31, 2016 and 2015
(in thousands)	2016		2015
Assets
Cash and due from Bank of Marin	$	3,568	$	3,796
Investment in bank subsidiary	232,431		215,722
Other assets	670		770
Total assets	$	236,669	$	220,288
Liabilities and Stockholders' Equity
Subordinated debentures	$	5,586	$	5,395
Accrued expenses payable	96		109
Other liabilities	424		311
Total liabilities	6,106		5,815
Stockholders' equity	230,563		214,473
Total liabilities and stockholders' equity	$	236,669	$	220,288

Schedule of Condensed Income Statement

CONDENSED UNCONSOLIDATED STATEMENTS OF INCOME
Years ended December 31, 2016, 2015 and 2014
(in thousands)	2016		2015		2014
Income
Dividends from bank subsidiary	$	6,400	$	6,500	$	—
Miscellaneous Income	7		6		8
Total income	6,407		6,506		8
Expense
Interest expense	435		420		421
Non-interest expense	984		973		851
Total expense	1,419		1,393		1,272
Income (loss) before income taxes and equity in undistributed net income of subsidiary	4,988		5,113		(1,264		)
Income tax benefit	594		583		532
Income (loss) before equity in undistributed net income of subsidiary	5,582		5,696		(732		)
Earnings of bank subsidiary greater (less) than dividends received from bank subsidiary	17,552		12,745		20,503
Net income	$	23,134	$	18,441	$	19,771

Schedule of Condensed Cash Flow Statement

CONDENSED UNCONSOLIDATED STATEMENTS OF CASH FLOWS
Years ended December 31, 2016, 2015 and 2014
(in thousands)	2016			2015			2014
Cash Flows from Operating Activities:
Net income	$	23,134		$	18,441		$	19,771
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Earnings of bank subsidiary greater than dividends received from bank subsidiary	(17,552		)	(12,745		)	(20,503		)
Net change in operating assets and liabilities:
Accretion of discount on subordinated debentures	191			210			216
Other assets	353			(298		)	(88		)
Intercompany receivable	171			(18		)	—
Other liabilities	(302		)	368			(99		)
Net cash provided by (used in) operating activities	5,995			5,958			(703		)
Cash Flows from Investing Activities:
Capital contribution to subsidiary	(1,285		)	(1,156		)	(1,475		)
Net cash used in investing activities	(1,285		)	(1,156		)	(1,475		)
Cash Flows from Financing Activities:
Stock options exercised and stock purchases	1,285			1,156			1,475
Dividends paid on common stock	(6,223		)	(5,390		)	(4,733		)
Net cash used by financing activities	(4,938		)	(4,234		)	(3,258		)
Net (decrease) increase in cash and cash equivalents	(228		)	568			(5,436		)
Cash and cash equivalents at beginning of period	3,796			3,228			8,664
Cash and cash equivalents at end of period	$	3,568		$	3,796		$	3,228
Supplemental schedule of non-cash investing and financing activities:
Stock issued in payment of director fees	$	234		$	275		$	236

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Summary of Significant Accounting Policies - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) payment branch	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Entity Location [Line Items]
Number of consecutive payments considered sustained repayment performance | payment	6
Threshold period a past due loan is charged off	90 days
Threshold period a past due overdraft account is charged off	60 days
Ownership interest in each limited partnerships formed for affordable housing projects (less than)	2.00%
Advertising costs | $	$ 565	$ 334	$ 400
Commitments under operating leases | $	$ 21,082
Marin County
Entity Location [Line Items]
Number of branches	10
Napa County
Entity Location [Line Items]
Number of branches	1
San Francisco
Entity Location [Line Items]
Number of branches	1
Sonoma County
Entity Location [Line Items]
Number of branches	5
Alameda County
Entity Location [Line Items]
Number of branches	3

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Summary of Significant Accounting Policies - Premises and Equipment (Details)	12 Months Ended
	Dec. 31, 2016
Furniture and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment useful life	8 years
Minimum | Equipment
Property, Plant and Equipment [Line Items]
Premises and equipment useful life	3 years
Maximum | Equipment
Property, Plant and Equipment [Line Items]
Premises and equipment useful life	20 years

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Summary of Significant Accounting Policies - Future Amortization Expense of Core Deposits (Details) - Core deposit intangible $ in Thousands	Dec. 31, 2016 USD ($)
Finite-Lived Intangible Assets [Line Items]
2017	$ 472
2018	413
2019	388
2020	365
2021	343
Thereafter	599
Total core deposit intangible amortization	$ 2,580

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Summary of Significant Accounting Policies - Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share, Basic and Diluted [Abstract]
Weighted average basic shares outstanding (in shares)	6,073	5,966	5,893
Potential common shares related to stock options (in shares)	34	41	43
Potential common shares related to unvested restricted stock awards (in shares)	8	5	5
Potential common shares related to warrants (in shares)	0	53	65
Weighted average diluted shares outstanding (in shares)	6,115	6,065	6,006
Net income	$ 23,134	$ 18,441	$ 19,771
Basic EPS (in dollars per share)	$ 3.81	$ 3.09	$ 3.35
Diluted EPS (in dollars per share)	$ 3.78	$ 3.04	$ 3.29
Weighted average anti-dilutive shares not included in the calculation of diluted EPS (shares)	64	36	45

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Investment Securities - Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held to maturity, Amortized Cost	$ 44,438	$ 69,637
Held-to-maturity, Fair Value	45,097	71,054
Held-to-maturity, Gross Unrealized Gains	820	1,459
Held-to-maturity, Gross Unrealized (Losses)	(161)	(42)
Available for sale, Amortized Cost	378,254	417,410
Available-for-sale, at fair value	372,580	417,787
Available-for-sale, Gross Unrealized Gains	575	1,883
Available-for-sale, Gross Unrealized (Losses)	(6,249)	(1,506)
Total investment securities, Amortized Cost	422,692	487,047
Total investment securities, Fair Value	417,677	488,841
Total investment securities, Gross Unrealized Gains	1,395	3,342
Total investment securities, Gross Unrealized (Losses)	(6,410)	(1,548)
MBS pass-through securities
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available for sale, Amortized Cost	193,998	138,222
Available-for-sale, at fair value	190,566	138,462
Available-for-sale, Gross Unrealized Gains	145	694
Available-for-sale, Gross Unrealized (Losses)	(3,577)	(454)
CMOs issued by FNMA
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available for sale, Amortized Cost	13,790	18,266
Available-for-sale, at fair value	13,772	18,219
Available-for-sale, Gross Unrealized Gains	91	97
Available-for-sale, Gross Unrealized (Losses)	(109)	(144)
CMOs issued by FHLMC
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available for sale, Amortized Cost	43,452	22,889
Available-for-sale, at fair value	42,758	22,932
Available-for-sale, Gross Unrealized Gains	37	82
Available-for-sale, Gross Unrealized (Losses)	(731)	(39)
CMOs issued by GNMA
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available for sale, Amortized Cost	6,844	10,326
Available-for-sale, at fair value	6,945	10,480
Available-for-sale, Gross Unrealized Gains	102	169
Available-for-sale, Gross Unrealized (Losses)	(1)	(15)
Debentures of government-sponsored agencies
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available for sale, Amortized Cost	35,486	161,690
Available-for-sale, at fair value	35,403	160,892
Available-for-sale, Gross Unrealized Gains	7	28
Available-for-sale, Gross Unrealized (Losses)	(90)	(826)
Privately-issued CMOs
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available for sale, Amortized Cost	419	3,960
Available-for-sale, at fair value	419	4,150
Available-for-sale, Gross Unrealized Gains	1	190
Available-for-sale, Gross Unrealized (Losses)	(1)	0
Obligations of state and political subdivisions
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held to maturity, Amortized Cost	30,856	42,919
Held-to-maturity, Fair Value	31,544	44,146
Held-to-maturity, Gross Unrealized Gains	694	1,246
Held-to-maturity, Gross Unrealized (Losses)	(6)	(19)
Available for sale, Amortized Cost	79,306	57,110
Available-for-sale, at fair value	77,701	57,673
Available-for-sale, Gross Unrealized Gains	135	580
Available-for-sale, Gross Unrealized (Losses)	(1,740)	(17)
Corporate bonds
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held to maturity, Amortized Cost	3,519	15,072
Held-to-maturity, Fair Value	3,518	15,098
Held-to-maturity, Gross Unrealized Gains	0	42
Held-to-maturity, Gross Unrealized (Losses)	(1)	(16)
Available for sale, Amortized Cost	4,959	4,947
Available-for-sale, at fair value	5,016	4,979
Available-for-sale, Gross Unrealized Gains	57	43
Available-for-sale, Gross Unrealized (Losses)	0	(11)
MBS pass-through securities
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held to maturity, Amortized Cost	10,063	11,646
Held-to-maturity, Fair Value	10,035	11,810
Held-to-maturity, Gross Unrealized Gains	126	171
Held-to-maturity, Gross Unrealized (Losses)	$ (154)	$ (7)

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Investment Securities - Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Held to Maturity, Amortized Cost, Within one year	$ 13,473	$ 18,853
Held to Maturity, Fair Value, Within one year	13,506	18,920
Available for Sale Securities, Amortized Cost, Within one year	20,136	12,135
Available for Sale Securities, Debt Maturities, Fair Value, Within one year	20,109	12,176
Held to Maturity, Amortized Cost, After one but within five years	16,706	31,677
Held to Maturity, Fair Value, After one but within five years	17,150	32,360
Available for Sale, Amortized Cost, After one but within five years	58,334	188,007
Available for Sale, Fair Value, After one but within five years	58,267	187,326
Held to Maturity, Amortized Cost, After five years through ten years	3,000	8,580
Held to Maturity, Fair Value, After five years through ten years	3,125	8,969
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis	113,576	64,899
Available for Sale, Fair Value, After five years through ten years	110,842	64,999
Held to Maturity, Amortized Cost, After ten years	11,259	10,527
Held to Maturity, Fair Value, After ten years	11,316	10,805
Available for Sale, Amortized Cost, After five years through ten years	186,208	152,369
Available for Sale, Fair Value, After ten years	183,362	153,286
Held to Maturity, Amortized Cost, Total	44,438	69,637
Held-to-Maturity, Fair Value, Total	45,097	71,054
Available for Sale, Amortized Cost, Total	378,254	417,410
Available for Sale, Fair Value, Total	$ 372,580	$ 417,787

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Investment Securities - Securities Sold, Pledged as Collateral and Transfers (Details) - USD ($) $ in Thousands		12 Months Ended
	Feb. 24, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Available-for-sale:
Sales proceeds		$ 68,673	$ 2,099	$ 2,436
Gross realized gains		458	7	4
Gross realized losses		(64)	(1)	(28)
Held-to-maturity:
Sales proceeds		1,265	1,015	2,146
Gross realized gains		32	73	104
Gross realized losses		0	0	0
Securities transferred from available-for-sale to held-to-maturity		0	0	$ 14,297
Subsequent event
Held-to-maturity:
Securities transferred from available-for-sale to held-to-maturity	$ 129,000
Unrealized pre-tax loss from transfer of available-for-sale securities to held-to-maturity	$ 3,000
State of California
Available-for-sale:
Available-for-sale securities pledged as collateral		109,100	87,900
Public Deposits
Available-for-sale:
Available-for-sale securities pledged as collateral		108,300	87,100
Trust Deposits
Available-for-sale:
Available-for-sale securities pledged as collateral		822	840
Internal checking account
Available-for-sale:
Available-for-sale securities pledged as collateral		$ 2,100	$ 1,100

XML

Investment Securities - Other Than Temporarily Impaired Debt Securities (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) security	Dec. 31, 2015 USD ($) security	Dec. 31, 2014 USD ($)
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Number of securities considered other than temporarily impaired | security	0
Other-than-temporary impairment on securities available-for-sale	$ 0	$ 0	$ 13
Number of investment securities in unrealized loss positions | security	134	54
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Held-to-maturity, Less than 12 continuous months, Fair value	$ 9,130	$ 14,152
Held-to-maturity, Less than 12 continuous months, Unrealized loss	(161)	(41)
Held-to-maturity, Greater than 12 continuous months, Fair value	0	1,999
Held-to-maturity, Greater than 12 continuous months, Unrealized loss	0	(1)
Held-to-maturity, Total securities in a loss position, Fair value	9,130	16,151
Held-to-maturity, Total securities in a loss position, Unrealized loss	(161)	(42)
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale, Less than 12 continuous months, Fair value	284,314	221,857
Available-for-sale, Less than 12 continuous months, Unrealized loss	(6,197)	(1,273)
Available-for-sale, Greater than 12 continuous months, Fair value	9,946	17,987
Available-for-sale, Greater than 12 continuous months, Unrealized loss	(52)	(233)
Available-for-sale, Total securities in a loss position, Fair value	294,260	239,844
Available-for-sale, Total securities in a loss position, Unrealized loss	(6,249)	(1,506)
Available-for-sale and Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract] [Abstract]
Total temporarily impaired securities, Less than 12 continuous months, Fair value	293,444	236,009
Total temporarily impaired securities, Less than 12 continuous months, Unrealized loss	(6,358)	(1,314)
Total temporarily impaired securities, Greater than 12 continuous months, Fair value	9,946	19,986
Total temporarily impaired securities, Greater than 12 continuous months, Unrealized loss	(52)	(234)
Total temporarily impaired securities, Total securities in a loss position, Fair value	303,390	255,995
Total temporarily impaired securities, Total securities in a loss position, Unrealized loss	$ (6,410)	(1,548)
Number of securities in continuous loss position for more than 12 months | security	1
Number of securities in continuous loss position for less than 12 months | security	133
Net loss on sale of available for sale securities sold	$ 64	1	$ 28
MBS pass-through securities
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale, Less than 12 continuous months, Fair value	162,016	68,809
Available-for-sale, Less than 12 continuous months, Unrealized loss	(3,577)	(454)
Available-for-sale, Greater than 12 continuous months, Fair value		0
Available-for-sale, Greater than 12 continuous months, Unrealized loss		0
Available-for-sale, Total securities in a loss position, Fair value	162,016	68,809
Available-for-sale, Total securities in a loss position, Unrealized loss	$ (3,577)	(454)
Available-for-sale and Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract] [Abstract]
Number of securities in continuous loss position for less than 12 months | security	31
Collateralized Mortgage Obligations
Available-for-sale and Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract] [Abstract]
Number of securities in continuous loss position for less than 12 months | security	13
CMOs issued by FNMA
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale, Less than 12 continuous months, Fair value	$ 9,498	9,277
Available-for-sale, Less than 12 continuous months, Unrealized loss	(109)	(80)
Available-for-sale, Greater than 12 continuous months, Fair value		3,158
Available-for-sale, Greater than 12 continuous months, Unrealized loss		(64)
Available-for-sale, Total securities in a loss position, Fair value	9,498	12,435
Available-for-sale, Total securities in a loss position, Unrealized loss	(109)	(144)
CMOs issued by FHLMC
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale, Less than 12 continuous months, Fair value	31,545	0
Available-for-sale, Less than 12 continuous months, Unrealized loss	(731)	0
Available-for-sale, Greater than 12 continuous months, Fair value		1,989
Available-for-sale, Greater than 12 continuous months, Unrealized loss		(39)
Available-for-sale, Total securities in a loss position, Fair value	31,545	1,989
Available-for-sale, Total securities in a loss position, Unrealized loss	(731)	(39)
CMOs issued by GNMA
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale, Less than 12 continuous months, Fair value	1,583	164
Available-for-sale, Less than 12 continuous months, Unrealized loss	(1)	0
Available-for-sale, Greater than 12 continuous months, Fair value		2,374
Available-for-sale, Greater than 12 continuous months, Unrealized loss		(15)
Available-for-sale, Total securities in a loss position, Fair value	1,583	2,538
Available-for-sale, Total securities in a loss position, Unrealized loss	(1)	(15)
Debentures of government-sponsored agencies
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale, Less than 12 continuous months, Fair value	19,951	136,064
Available-for-sale, Less than 12 continuous months, Unrealized loss	(38)	(713)
Available-for-sale, Greater than 12 continuous months, Fair value	9,946	9,887
Available-for-sale, Greater than 12 continuous months, Unrealized loss	(52)	(113)
Available-for-sale, Total securities in a loss position, Fair value	29,897	145,951
Available-for-sale, Total securities in a loss position, Unrealized loss	$ (90)	(826)
Available-for-sale and Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract] [Abstract]
Number of securities in continuous loss position for less than 12 months | security	1
Obligations of state and political subdivisions
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale, Less than 12 continuous months, Fair value	$ 59,567	4,557
Available-for-sale, Less than 12 continuous months, Unrealized loss	(1,740)	(15)
Available-for-sale, Greater than 12 continuous months, Fair value		579
Available-for-sale, Greater than 12 continuous months, Unrealized loss		(2)
Available-for-sale, Total securities in a loss position, Fair value	59,567	5,136
Available-for-sale, Total securities in a loss position, Unrealized loss	$ (1,740)	(17)
Available-for-sale and Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract] [Abstract]
Number of securities in continuous loss position for less than 12 months | security	86
Corporate bonds
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale, Less than 12 continuous months, Fair value		2,986
Available-for-sale, Less than 12 continuous months, Unrealized loss		(11)
Available-for-sale, Greater than 12 continuous months, Fair value		0
Available-for-sale, Greater than 12 continuous months, Unrealized loss		0
Available-for-sale, Total securities in a loss position, Fair value		2,986
Available-for-sale, Total securities in a loss position, Unrealized loss		(11)
Available-for-sale and Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract] [Abstract]
Number of securities in continuous loss position for less than 12 months | security	1
Privately-issued CMOs
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale, Less than 12 continuous months, Fair value	$ 154
Available-for-sale, Less than 12 continuous months, Unrealized loss	(1)
Available-for-sale, Greater than 12 continuous months, Fair value
Available-for-sale, Greater than 12 continuous months, Unrealized loss
Available-for-sale, Total securities in a loss position, Fair value	154
Available-for-sale, Total securities in a loss position, Unrealized loss	$ (1)
Available-for-sale and Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract] [Abstract]
Number of securities in continuous loss position for less than 12 months | security	1
MBS pass-through securities
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Held-to-maturity, Less than 12 continuous months, Fair value	$ 2,250	2,332
Held-to-maturity, Less than 12 continuous months, Unrealized loss	(154)	(7)
Held-to-maturity, Greater than 12 continuous months, Fair value		0
Held-to-maturity, Greater than 12 continuous months, Unrealized loss		0
Held-to-maturity, Total securities in a loss position, Fair value	2,250	2,332
Held-to-maturity, Total securities in a loss position, Unrealized loss	(154)	(7)
Obligations of state and political subdivisions
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Held-to-maturity, Less than 12 continuous months, Fair value	3,362	8,297
Held-to-maturity, Less than 12 continuous months, Unrealized loss	(6)	(19)
Held-to-maturity, Greater than 12 continuous months, Fair value		0
Held-to-maturity, Greater than 12 continuous months, Unrealized loss		0
Held-to-maturity, Total securities in a loss position, Fair value	3,362	8,297
Held-to-maturity, Total securities in a loss position, Unrealized loss	(6)	(19)
Corporate bonds
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Held-to-maturity, Less than 12 continuous months, Fair value	3,518	3,523
Held-to-maturity, Less than 12 continuous months, Unrealized loss	(1)	(15)
Held-to-maturity, Greater than 12 continuous months, Fair value		1,999
Held-to-maturity, Greater than 12 continuous months, Unrealized loss		(1)
Held-to-maturity, Total securities in a loss position, Fair value	3,518	5,522
Held-to-maturity, Total securities in a loss position, Unrealized loss	$ (1)	$ (16)

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Investment Securities - Non-marketable Securities (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) $ / shares shares	Feb. 21, 2017	Dec. 31, 2015 USD ($)
Schedule of Cost-method Investments [Line Items]
Federal Home Loan Bank stock, par value (usd per share) | $ / shares	$ 100
Investments in low income housing tax credit funds	$ 2,500,000		$ 2,700,000
Low income housing tax credits and other tax benefits	297,000
Low income housing amortization expense	236,000
Unfunded commitments for low income housing tax credit funds	$ 1,400,000
Subsequent event
Schedule of Cost-method Investments [Line Items]
Federal Home Loan Bank, dividend rate percentage		9.08%
Visa Inc. Class B common stock
Schedule of Cost-method Investments [Line Items]
Number of shares of securities carried at cost | shares	16,939
Carrying value of securities carried at cost	$ 0
Fair value of Class B common stock	$ 2,200,000		2,200,000
Conversion ratio for common stock	1.6483
Other assets
Schedule of Cost-method Investments [Line Items]
Federal Home Loan Bank stock	$ 10,200,000		$ 8,400,000

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Loans and Allowance for Loan Losses - Percentage of Loans Geographically and by Collateral (Details)	Dec. 31, 2016	Dec. 31, 2015
Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of loans by class to all loans	65.00%
Commercial real estate loans | California
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of loans by class and geographic location	83.00%
Loans secured by real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of loans by class to all loans	85.00%	85.00%

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Loans and Allowance for Loan Losses - Loans Outstanding and Aging Analysis (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	$ 502,000	$ 2,224,000
Current	1,486,114,000	1,449,004,000
Total loans	1,486,616,000	1,451,228,000
Non-accrual loans	145,000	2,179,000
Purchased Credit Impaired (PCI) loans no longer accreting interest	0	1,000
Purchased Credit-impaired (PCI) loans accreting interest	2,900,000	3,700,000
Deferred loan fees	883,000	768,000
Unaccreted purchase discounts on non-PCI loans	1,800,000	3,200,000
30-59 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	362,000	1,382,000
60-89 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	49,000	722,000
90 days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	91,000	120,000
Commercial loans | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	283,000	57,000
Current	218,332,000	219,395,000
Total loans	218,615,000	219,452,000
Non-accrual loans	0	21,000
Commercial loans | Commercial and industrial | 30-59 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	283,000	36,000
Commercial loans | Commercial and industrial | 60-89 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	0	0
Commercial loans | Commercial and industrial | 90 days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	0	21,000
Commercial real estate loans | Commercial real estate, owner-occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	0	0
Current	247,713,000	242,309,000
Total loans	247,713,000	242,309,000
Non-accrual loans	0	0
Commercial real estate loans | Commercial real estate, owner-occupied | 30-59 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	0	0
Commercial real estate loans | Commercial real estate, owner-occupied | 60-89 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	0	0
Commercial real estate loans | Commercial real estate, owner-occupied | 90 days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	0	0
Commercial real estate loans | Commercial real estate, investor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	0	1,096,000
Current	724,228,000	714,783,000
Total loans	724,228,000	715,879,000
Non-accrual loans	0	1,903,000
Commercial real estate loans | Commercial real estate, investor | 30-59 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	0	1,096,000
Commercial real estate loans | Commercial real estate, investor | 60-89 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	0	0
Commercial real estate loans | Commercial real estate, investor | 90 days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	0	0
Commercial real estate loans | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	0	1,000
Current	74,809,000	65,494,000
Total loans	74,809,000	65,495,000
Non-accrual loans	0	1,000
Commercial real estate loans | Construction | 30-59 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	0	1,000
Commercial real estate loans | Construction | 60-89 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	0	0
Commercial real estate loans | Construction | 90 days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	0	0
Residential loans | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	168,000	732,000
Current	117,039,000	111,568,000
Total loans	117,207,000	112,300,000
Non-accrual loans	91,000	171,000
Residential loans | Home equity | 30-59 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	77,000	0
Residential loans | Home equity | 60-89 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due		633,000
Residential loans | Home equity | 90 days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	91,000	99,000
Residential loans | Other residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	0	0
Current	78,549,000	73,154,000
Total loans	78,549,000	73,154,000
Non-accrual loans	0	0
Residential loans | Other residential | 30-59 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	0	0
Residential loans | Other residential | 60-89 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	0	0
Residential loans | Other residential | 90 days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	0	0
Consumer loans | Installment and other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	51,000	338,000
Current	25,444,000	22,301,000
Total loans	25,495,000	22,639,000
Non-accrual loans	54,000	83,000
Consumer loans | Installment and other consumer | 30-59 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	2,000	249,000
Consumer loans | Installment and other consumer | 60-89 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	49,000	89,000
Consumer loans | Installment and other consumer | 90 days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	$ 0	$ 0

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Loans and Allowance for Loan Losses - Credit Risk Profile by Internally Assigned Risk Grade (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 1,486,616	$ 1,451,228
Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,451,049	1,392,597
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	15,937	36,300
Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	19,630	22,331
Commercial loans | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	218,575	219,277
Total loans	218,615	219,452
Commercial loans | Pass | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	201,987	192,560
Commercial loans | Special Mention | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	9,197	22,457
Commercial loans | Substandard | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	7,391	4,260
Commercial real estate loans | Commercial real estate, owner-occupied
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	246,641	240,598
Total loans	247,713	242,309
Commercial real estate loans | Commercial real estate, investor
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	722,522	714,153
Total loans	724,228	715,879
Commercial real estate loans | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	74,809	65,494
Total loans	74,809	65,495
Commercial real estate loans | Pass | Commercial real estate, owner-occupied
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	234,849	219,060
Commercial real estate loans | Pass | Commercial real estate, investor
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	720,417	710,042
Commercial real estate loans | Pass | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	71,564	62,255
Commercial real estate loans | Special Mention | Commercial real estate, owner-occupied
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	4,799	12,371
Commercial real estate loans | Special Mention | Commercial real estate, investor
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	607	372
Commercial real estate loans | Special Mention | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	0	0
Commercial real estate loans | Substandard | Commercial real estate, owner-occupied
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	6,993	9,167
Commercial real estate loans | Substandard | Commercial real estate, investor
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	1,498	3,739
Commercial real estate loans | Substandard | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	3,245	3,239
Residential loans | Home equity
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	117,105	112,232
Total loans	117,207	112,300
Residential loans | Other residential
Financing Receivable, Recorded Investment [Line Items]
Total loans	78,549	73,154
Residential loans | Pass | Home equity
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	115,680	109,959
Residential loans | Pass | Other residential
Financing Receivable, Recorded Investment [Line Items]
Total loans	78,549	73,154
Residential loans | Special Mention | Home equity
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	1,334	1,100
Residential loans | Special Mention | Other residential
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Residential loans | Substandard | Home equity
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	91	1,173
Residential loans | Substandard | Other residential
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Consumer loans | Installment and other consumer
Financing Receivable, Recorded Investment [Line Items]
Total loans	25,495	22,639
Consumer loans | Pass | Installment and other consumer
Financing Receivable, Recorded Investment [Line Items]
Total loans	25,083	22,307
Consumer loans | Special Mention | Installment and other consumer
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Consumer loans | Substandard | Installment and other consumer
Financing Receivable, Recorded Investment [Line Items]
Total loans	412	332
Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Recorded Investment [Line Items]
Purchased credit-impaired	2,920	3,681
Receivables Acquired with Deteriorated Credit Quality | Pass
Financing Receivable, Recorded Investment [Line Items]
Purchased credit-impaired	2,920	3,260
Receivables Acquired with Deteriorated Credit Quality | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Purchased credit-impaired	0	0
Receivables Acquired with Deteriorated Credit Quality | Substandard
Financing Receivable, Recorded Investment [Line Items]
Purchased credit-impaired	0	421
Receivables Acquired with Deteriorated Credit Quality | Commercial loans | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Purchased credit-impaired	40	175
Receivables Acquired with Deteriorated Credit Quality | Commercial real estate loans | Commercial real estate, owner-occupied
Financing Receivable, Recorded Investment [Line Items]
Purchased credit-impaired	1,072	1,711
Receivables Acquired with Deteriorated Credit Quality | Commercial real estate loans | Commercial real estate, investor
Financing Receivable, Recorded Investment [Line Items]
Purchased credit-impaired	1,706	1,726
Receivables Acquired with Deteriorated Credit Quality | Commercial real estate loans | Construction
Financing Receivable, Recorded Investment [Line Items]
Purchased credit-impaired	0	1
Receivables Acquired with Deteriorated Credit Quality | Residential loans | Home equity
Financing Receivable, Recorded Investment [Line Items]
Purchased credit-impaired	102	68
Receivables Acquired with Deteriorated Credit Quality | Residential loans | Other residential
Financing Receivable, Recorded Investment [Line Items]
Purchased credit-impaired	0	0
Receivables Acquired with Deteriorated Credit Quality | Consumer loans | Installment and other consumer
Financing Receivable, Recorded Investment [Line Items]
Purchased credit-impaired	$ 0	$ 0

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Loans and Allowance for Loan Losses - Troubled Debt Restructuring by Class (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) loans	Dec. 31, 2015 USD ($) loans	Dec. 31, 2014 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans removed from TDR resignation | loans	0	5
Recorded investment of loans removed from TDR resignation		$ 1,600,000
Recorded investment in Troubled Debt Restructurings	$ 18,168,000	19,081,000
TDR loans accruing interest as of period end	0	72,000
Acquired loans included in TDR	0	$ 137,000
Number of loans transferred to loans held-for-sale | loans		1
Charge-off on loan transferred to held-for-sale	36,000	$ 864,000	$ 277,000
Gain (loss) on transfer of loans to held-for-sale		0
Commercial loans | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in Troubled Debt Restructurings	2,207,000	4,698,000
Charge-off on loan transferred to held-for-sale	11,000	5,000	66,000
Commercial real estate loans | Commercial real estate, owner-occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in Troubled Debt Restructurings	6,993,000	6,993,000
Charge-off on loan transferred to held-for-sale	20,000	0	0
Commercial real estate loans | Commercial real estate, investor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in Troubled Debt Restructurings	2,256,000	514,000
Charge-off on loan transferred to held-for-sale	0	0	0
Commercial real estate loans | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in Troubled Debt Restructurings	3,245,000	3,238,000
Loans reclassified to held-for-sale		1,500,000
Charge-off on loan transferred to held-for-sale	0	839,000	204,000
Residential loans | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in Troubled Debt Restructurings	625,000	460,000
Charge-off on loan transferred to held-for-sale	0	0	0
Residential loans | Other residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in Troubled Debt Restructurings	1,965,000	2,010,000
Charge-off on loan transferred to held-for-sale	0	0	0
Consumer loans | Installment and other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in Troubled Debt Restructurings	877,000	1,168,000
Charge-off on loan transferred to held-for-sale	$ 5,000	$ 20,000	$ 7,000

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Loans and Allowance for Loan Losses - Troubled Debt Restructuring Modifications (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) contract	Dec. 31, 2015 USD ($) contract	Dec. 31, 2014 USD ($) contract
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract	4		17
Pre-Modification Outstanding Recorded Investment	$ 1,985,000		$ 6,734,000
Post-Modification Outstanding Recorded Investment	2,115,000		7,288,000
Post-Modification Outstanding Recorded Investment at Period End	2,063,000		7,223,000
Total of TDR loans charged-off within previous 12 months	$ 0	$ 0	$ 0
Residential loans | Home equity
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract	1
Pre-Modification Outstanding Recorded Investment	$ 87,000
Post-Modification Outstanding Recorded Investment	222,000
Post-Modification Outstanding Recorded Investment at Period End	$ 245,000
Commercial loans | Commercial real estate, investor
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract	2		2
Pre-Modification Outstanding Recorded Investment	$ 1,830,000		$ 224,000
Post-Modification Outstanding Recorded Investment	1,826,000		224,000
Post-Modification Outstanding Recorded Investment at Period End	$ 1,752,000		$ 220,000
Commercial loans | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract		7	6
Pre-Modification Outstanding Recorded Investment		$ 3,271,000	$ 1,039,000
Post-Modification Outstanding Recorded Investment		3,251,000	1,258,000
Post-Modification Outstanding Recorded Investment at Period End		$ 2,811,000	$ 1,251,000
Commercial real estate loans | Commercial real estate, owner-occupied
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract			1
Pre-Modification Outstanding Recorded Investment			$ 4,226,000
Post-Modification Outstanding Recorded Investment			4,216,000
Post-Modification Outstanding Recorded Investment at Period End			$ 4,175,000
Commercial real estate loans | Construction
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract			2
Pre-Modification Outstanding Recorded Investment			$ 964,000
Post-Modification Outstanding Recorded Investment			1,312,000
Post-Modification Outstanding Recorded Investment at Period End			$ 1,309,000
Consumer loans | Installment and other consumer
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract	1		6
Pre-Modification Outstanding Recorded Investment	$ 68,000		$ 281,000
Post-Modification Outstanding Recorded Investment	67,000		278,000
Post-Modification Outstanding Recorded Investment at Period End	$ 66,000		$ 268,000

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Loans and Allowance for Loan Losses - Impaired Loans and Related Allowance (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Recorded investment in impaired loans:
With no specific allowance recorded	$ 4,209,000	$ 12,928,000
With a specific allowance recorded	14,104,000	8,260,000
Total recorded investment in impaired loans	18,313,000	21,188,000
Unpaid principal balance of impaired loans:
Total unpaid principal balance of impaired loans	18,270,000	23,409,000
Specific valuation	991,000	1,169,000
Average recorded investment in impaired loans during the period	20,835,000	23,273,000	$ 25,909,000
Interest income recognized on impaired loans	2,223,000	826,000	948,000
Charged-off portion of impaired loans	0	2,100,000
Outstanding commitments to extend credit on impaired loans	1,600,000	1,300,000
Interest income recognized on impaired loans during the period ended, cash basis	1,400,000	0	0
Commercial loans | Commercial and industrial
Recorded investment in impaired loans:
With no specific allowance recorded	315,000	2,198,000
With a specific allowance recorded	1,892,000	2,522,000
Total recorded investment in impaired loans	2,207,000	4,720,000
Unpaid principal balance of impaired loans:
Total unpaid principal balance of impaired loans	2,177,000	4,763,000
Specific valuation	285,000	912,000
Average recorded investment in impaired loans during the period	3,514,000	4,237,000	5,354,000
Interest income recognized on impaired loans	175,000	238,000	378,000
Commercial real estate loans | Commercial real estate, owner-occupied
Recorded investment in impaired loans:
With no specific allowance recorded	0	4,111,000
With a specific allowance recorded	6,993,000	2,882,000
Total recorded investment in impaired loans	6,993,000	6,993,000
Unpaid principal balance of impaired loans:
Total unpaid principal balance of impaired loans	6,993,000	6,993,000
Specific valuation	163,000	70,000
Average recorded investment in impaired loans during the period	7,069,000	7,886,000	6,604,000
Interest income recognized on impaired loans	199,000	295,000	288,000
Commercial real estate loans | Commercial real estate, investor
Recorded investment in impaired loans:
With no specific allowance recorded	0	2,416,000
With a specific allowance recorded	2,256,000	0
Total recorded investment in impaired loans	2,256,000	2,416,000
Unpaid principal balance of impaired loans:
Total unpaid principal balance of impaired loans	2,252,000	4,408,000
Specific valuation	375,000	0
Average recorded investment in impaired loans during the period	2,950,000	2,833,000	3,138,000
Interest income recognized on impaired loans	1,514,000	33,000	28,000
Commercial real estate loans | Construction
Recorded investment in impaired loans:
With no specific allowance recorded	2,692,000	2,687,000
With a specific allowance recorded	553,000	551,000
Total recorded investment in impaired loans	3,245,000	3,238,000
Unpaid principal balance of impaired loans:
Total unpaid principal balance of impaired loans	3,238,000	3,424,000
Specific valuation	8,000	1,000
Average recorded investment in impaired loans during the period	3,242,000	4,164,000	6,471,000
Interest income recognized on impaired loans	137,000	86,000	85,000
Residential loans | Home equity
Recorded investment in impaired loans:
With no specific allowance recorded	91,000	171,000
With a specific allowance recorded	624,000	388,000
Total recorded investment in impaired loans	715,000	559,000
Unpaid principal balance of impaired loans:
Total unpaid principal balance of impaired loans	713,000	559,000
Specific valuation	7,000	3,000
Average recorded investment in impaired loans during the period	945,000	602,000	741,000
Interest income recognized on impaired loans	60,000	18,000	19,000
Residential loans | Other residential
Recorded investment in impaired loans:
With no specific allowance recorded	1,008,000	1,214,000
With a specific allowance recorded	957,000	797,000
Total recorded investment in impaired loans	1,965,000	2,011,000
Unpaid principal balance of impaired loans:
Total unpaid principal balance of impaired loans	1,965,000	2,011,000
Specific valuation	55,000	67,000
Average recorded investment in impaired loans during the period	1,988,000	2,028,000	1,744,000
Interest income recognized on impaired loans	90,000	92,000	74,000
Consumer loans | Installment and other consumer
Recorded investment in impaired loans:
With no specific allowance recorded	103,000	131,000
With a specific allowance recorded	829,000	1,120,000
Total recorded investment in impaired loans	932,000	1,251,000
Unpaid principal balance of impaired loans:
Total unpaid principal balance of impaired loans	932,000	1,251,000
Specific valuation	98,000	116,000
Average recorded investment in impaired loans during the period	1,127,000	1,523,000	1,857,000
Interest income recognized on impaired loans	$ 48,000	$ 64,000	$ 76,000

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Loans and Allowance for Loan Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 14,999	$ 15,099	$ 14,224
Provision (reversal)	(1,850)	500	750
Charge-offs	(36)	(864)	(277)
Recoveries	2,329	264	402
Ending balance	15,442	14,999	15,099
Ending ALLL related to loans collectively evaluated for impairment	14,451	13,830
Ending ALLL related to loans individually evaluated for impairment	991	1,160
Ending ALLL	15,442	14,999
Collectively evaluated for impairment	1,465,383	1,426,497
Individually evaluated for impairment	18,313	21,050
Total loans	$ 1,486,616	$ 1,451,228
Ratio of allowance for loan losses to total loans	1.04%	1.03%
Allowance for loan losses to non-accrual loans	10650.00%	688.00%
PCI loans impaired post-acquisition		$ 138
Receivables Acquired with Deteriorated Credit Quality
Allowance for Loan and Lease Losses [Roll Forward]
Ending ALLL	$ 0	9
Purchased credit-impaired	2,920	3,681
Commercial loans | Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	3,023	2,837	3,056
Provision (reversal)	93	(45)	(321)
Charge-offs	(11)	(5)	(66)
Recoveries	143	236	168
Ending balance		3,023	2,837
Ending ALLL related to loans collectively evaluated for impairment	2,963	2,111
Ending ALLL related to loans individually evaluated for impairment	285	904
Ending ALLL	3,248	3,023
Collectively evaluated for impairment	216,368	214,695
Individually evaluated for impairment	2,207	4,582
Total loans	$ 218,615	$ 219,452
Ratio of allowance for loan losses to total loans	1.49%	1.38%
Allowance for loan losses to non-accrual loans		14395.00%
Commercial loans | Commercial and industrial | Receivables Acquired with Deteriorated Credit Quality
Allowance for Loan and Lease Losses [Roll Forward]
Ending ALLL	$ 0	$ 8
Purchased credit-impaired	40	175
Commercial real estate loans | Commercial real estate, owner-occupied
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,249	1,924	2,012
Provision (reversal)	(476)	325	(93)
Charge-offs	(20)	0	0
Recoveries	0	0	5
Ending balance		2,249	1,924
Ending ALLL related to loans collectively evaluated for impairment	1,590	2,179
Ending ALLL related to loans individually evaluated for impairment	163	70
Ending ALLL	1,753	2,249
Collectively evaluated for impairment	239,648	233,605
Individually evaluated for impairment	6,993	6,993
Total loans	$ 247,713	$ 242,309
Ratio of allowance for loan losses to total loans	0.71%	0.93%
Commercial real estate loans | Commercial real estate, owner-occupied | Receivables Acquired with Deteriorated Credit Quality
Allowance for Loan and Lease Losses [Roll Forward]
Ending ALLL	$ 0	$ 0
Purchased credit-impaired	1,072	1,711
Commercial real estate loans | Commercial real estate, investor
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	6,178	6,672	6,196
Provision (reversal)	(2,014)	(517)	431
Charge-offs	0	0	0
Recoveries	2,156	23	45
Ending balance		6,178	6,672
Ending ALLL related to loans collectively evaluated for impairment	5,945	6,178
Ending ALLL related to loans individually evaluated for impairment	375	0
Ending ALLL	6,320	6,178
Collectively evaluated for impairment	720,266	711,737
Individually evaluated for impairment	2,256	2,416
Total loans	$ 724,228	$ 715,879
Ratio of allowance for loan losses to total loans	0.87%	0.86%
Allowance for loan losses to non-accrual loans		325.00%
Commercial real estate loans | Commercial real estate, investor | Receivables Acquired with Deteriorated Credit Quality
Allowance for Loan and Lease Losses [Roll Forward]
Ending ALLL	$ 0	$ 0
Purchased credit-impaired	1,706	1,726
Commercial real estate loans | Construction
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	724	839	633
Provision (reversal)	57	724	314
Charge-offs	0	(839)	(204)
Recoveries	0	0	96
Ending balance		724	839
Ending ALLL related to loans collectively evaluated for impairment	773	723
Ending ALLL related to loans individually evaluated for impairment	8	0
Ending ALLL	781	724
Collectively evaluated for impairment	71,564	62,256
Individually evaluated for impairment	3,245	3,238
Total loans	$ 74,809	$ 65,495
Ratio of allowance for loan losses to total loans	1.04%	1.11%
Allowance for loan losses to non-accrual loans		72400.00%
Commercial real estate loans | Construction | Receivables Acquired with Deteriorated Credit Quality
Allowance for Loan and Lease Losses [Roll Forward]
Ending ALLL	$ 0	$ 1
Purchased credit-impaired	0	1
Residential loans | Home equity
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	910	859	875
Provision (reversal)	60	48	(19)
Charge-offs	0	0	0
Recoveries	3	3	3
Ending balance		910	859
Ending ALLL related to loans collectively evaluated for impairment	966	907
Ending ALLL related to loans individually evaluated for impairment	7	3
Ending ALLL	973	910
Collectively evaluated for impairment	116,390	111,673
Individually evaluated for impairment	715	559
Total loans	$ 117,207	$ 112,300
Ratio of allowance for loan losses to total loans	0.83%	0.81%
Allowance for loan losses to non-accrual loans	1071.00%	532.00%
Residential loans | Home equity | Receivables Acquired with Deteriorated Credit Quality
Allowance for Loan and Lease Losses [Roll Forward]
Ending ALLL	$ 0	$ 0
Purchased credit-impaired	102	68
Residential loans | Other residential
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	394	433	317
Provision (reversal)	60	(39)	116
Charge-offs	0	0	0
Recoveries	0	0	0
Ending balance		394	433
Ending ALLL related to loans collectively evaluated for impairment	399	327
Ending ALLL related to loans individually evaluated for impairment	55	67
Ending ALLL	454	394
Collectively evaluated for impairment	76,584	71,143
Individually evaluated for impairment	1,965	2,011
Total loans	$ 78,549	$ 73,154
Ratio of allowance for loan losses to total loans	0.58%	0.54%
Residential loans | Other residential | Receivables Acquired with Deteriorated Credit Quality
Allowance for Loan and Lease Losses [Roll Forward]
Ending ALLL	$ 0	$ 0
Purchased credit-impaired	0	0
Consumer loans | Installment and other consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	425	566	629
Provision (reversal)	(75)	(123)	(141)
Charge-offs	(5)	(20)	(7)
Recoveries	27	2	85
Ending balance		425	566
Ending ALLL related to loans collectively evaluated for impairment	274	309
Ending ALLL related to loans individually evaluated for impairment	98	116
Ending ALLL	372	425
Collectively evaluated for impairment	24,563	21,388
Individually evaluated for impairment	932	1,251
Total loans	$ 25,495	$ 22,639
Ratio of allowance for loan losses to total loans	1.46%	1.88%
Allowance for loan losses to non-accrual loans	683.00%	512.00%
Consumer loans | Installment and other consumer | Receivables Acquired with Deteriorated Credit Quality
Allowance for Loan and Lease Losses [Roll Forward]
Ending ALLL	$ 0	$ 0
Purchased credit-impaired	0	0
Unallocated
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,096	969	506
Provision (reversal)	445	127	463
Charge-offs	0	0	0
Recoveries	0	0	0
Ending balance		1,096	$ 969
Ending ALLL related to loans collectively evaluated for impairment	1,541	1,096
Ending ALLL related to loans individually evaluated for impairment	0	0
Ending ALLL	1,541	1,096
Collectively evaluated for impairment	0	0
Individually evaluated for impairment	0	0
Total loans	0	0
Unallocated | Receivables Acquired with Deteriorated Credit Quality
Allowance for Loan and Lease Losses [Roll Forward]
Ending ALLL	0	0
Purchased credit-impaired	$ 0	$ 0

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Loans and Allowance for Loan Losses - Purchased Credit-Impaired Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
PCI Loans, Carrying Value [Abstract]
Unpaid principal balance	$ 3,350	$ 4,977
Carrying value	2,920	3,681
Increase of specific allowance for PCI loan losses		4	$ 3
Decrease in allowance for loan losses for PCI loans	6	2	238
Accretable Yield [Roll Forward]
Balance at beginning of period	2,618	4,027	3,649
Additions	0	0	0
Removals	(778)	(914)	(273)
Accretion	(364)	(495)	(613)
Reclassifications from nonaccretable difference	0	0	1,264
Balance at end of period	1,476	2,618	$ 4,027
Commercial loans | Commercial and industrial
PCI Loans, Carrying Value [Abstract]
Unpaid principal balance	45	237
Carrying value	40	175
Commercial real estate loans | Commercial real estate, owner-occupied
PCI Loans, Carrying Value [Abstract]
Unpaid principal balance	1,344	2,573
Carrying value	1,072	1,711
Commercial real estate loans | Commercial real estate, investor
PCI Loans, Carrying Value [Abstract]
Unpaid principal balance	1,713	1,756
Carrying value	1,706	1,726
Commercial real estate loans | Construction
PCI Loans, Carrying Value [Abstract]
Unpaid principal balance	0	187
Carrying value	0	1
Residential loans | Home equity
PCI Loans, Carrying Value [Abstract]
Unpaid principal balance	248	224
Carrying value	$ 102	$ 68

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Loans and Allowance for Loan Losses - Pledged Loans (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Financial Instruments Owned and Pledged as Collateral [Line Items]
Certain qualifying loans pledged for FHLB line of credit	$ 869.2	$ 833.8
Other residential
Financial Instruments Owned and Pledged as Collateral [Line Items]
Residential loans pledged for FRB borrowings	$ 54.6	$ 45.2

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Loans and Allowance for Loan Losses - Related Party Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Loans and Leases Receivable, Related Parties [Roll Forward]
Balance at beginning of year	$ 2,562	$ 3,329	$ 3,749
Additions	0	0	0
Advances	0	165	0
Repayments	(574)	(390)	(420)
Reclassified as unrelated-party loan due to a change in borrower status	0	(542)	0
Balance at end of year	1,988	2,562	$ 3,329
Directors, Officers, Principal Shareholders and Associates
Related Party Transaction [Line Items]
Undisbursed commitment to related parties	$ 1,100	$ 1,000

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Bank Premises and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Bank premises and equipment, Gross	$ 24,510	$ 23,502
Accumulated depreciation and amortization	(15,990)	(14,197)
Bank premises and equipment, net	8,520	9,305
Depreciation and amortization	1,800	2,000	$ 1,600
Leasehold improvements
Property, Plant and Equipment [Line Items]
Bank premises and equipment, Gross	13,883	13,615
Furniture and equipment
Property, Plant and Equipment [Line Items]
Bank premises and equipment, Gross	$ 10,627	$ 9,887

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Bank Owned Life Insurance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Insurance [Abstract]
Estimated death benefits	$ 71,000
Death benefits provided under terms of the programs	32,400	$ 29,500
Earnings on bank-owned life Insurance	$ 844	$ 814	$ 841

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Deposits - Stratification of Time Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Banking and Thrift [Abstract]
Time deposits of less than $100 thousand	$ 36,346	$ 39,534
Time deposits of $100 thousand to $250 thousand	66,092	67,352
Time deposits of more than $250 thousand	49,025	54,571
Time accounts	$ 151,463	$ 161,457

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Deposits - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Banking and Thrift [Abstract]
Interest on time accounts	$ 743	$ 853	$ 917
Held-to-maturity securities pledged as collateral	36,400
Available-for-sale securities pledged as collateral	71,900
CDARS balance in reciprocal deposit program	15,100	14,300
ICS balance in reciprocal deposit program	29,000	12,200
DDM balance in reciprocal deposit program	36,400
One-way CDARS deposits	361	355
Deposit overdrafts reclassified as loan balances	229	84
Related party deposit liabilities	$ 7,300	$ 8,300

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Deposits - Time Deposit Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Maturities of Time Deposits [Abstract]
2017	$ 104,616
2018	12,325
2019	7,891
2020	7,246
2021	19,385
Thereafter	0
Time accounts	$ 151,463	$ 161,457

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Borrowings - Lines of Credit and Borrowing Agreements (Details) - USD ($)	Jun. 15, 2016	Feb. 05, 2008	Dec. 31, 2016	Dec. 31, 2015
Line of Credit | Federal Home Loan Bank Borrowings
Line of Credit Facility [Line Items]
Term of FHLB borrowing agreements		10 years
Principal amount of borrowing agreements with FHLB		$ 15,000,000.0
Fixed interest rate of FHLB borrowing agreement		2.07%
Amount of FHLB borrowings outstanding			$ 0	$ 15,000,000
Line of Credit | Federal Home Loan Bank
Line of Credit Facility [Line Items]
Lines of credit			513,700,000	470,600,000
Remaining available line of credit from FHLB			513,700,000	403,400,000
Line of Credit | Federal Home Loan Bank Borrowings [Member]
Line of Credit Facility [Line Items]
Amount of debt repaid	$ 15,000,000
Line of Credit | Federal Home Loan Bank Borrowings [Member] | Interest expense
Line of Credit Facility [Line Items]
Prepayment fee on debt repaid	$ 312,000
Letters of credit | Federal Home Loan Bank
Line of Credit Facility [Line Items]
Remaining available line of credit from FHLB				241,000
Federal Funds Purchased | Line of Credit
Line of Credit Facility [Line Items]
Lines of credit			92,000,000	92,000,000
Short-term Debt			0	0
Federal Home Loan Bank Overnight Borrowings | Line of Credit
Line of Credit Facility [Line Items]
Short-term Debt			0	$ 52,000,000
Effective interest rate at period end				0.27%
Federal Home Loan Bank Borrowings | Line of Credit
Line of Credit Facility [Line Items]
Short-term Debt			0	$ 52,000,000
Federal Reserve Line of Credit | Line of Credit
Line of Credit Facility [Line Items]
Lines of credit			43,100,000	37,800,000
Amount of FHLB borrowings outstanding			$ 0	$ 0

XML

Borrowings - Subordinated Debt (Details) $ in Thousands		12 Months Ended
	Nov. 29, 2013 USD ($) debenture	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Number of subordinated debentures acquired | debenture	2
Accretion of discount on subordinated debentures		$ 191	$ 210	$ 216
Amount guaranteed, on subordinated basis, distributions and other payments on trust preferred securities		8,000
Subordinated debentures		5,586	5,395
Subordinated debenture
Debt Instrument [Line Items]
Subordinated debenture	$ 4,950
Long-term Debt, Gross	$ 8,200	8,248
Accretion of discount on subordinated debentures		191	210	$ 216
Subordinated debentures		5,586	$ 5,395
Subordinated debenture | NorCal Community Bancorp Trust I
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 4,124
Effective interest rate		3.93%
Basis spread on subordinated debenture		3.05%
Subordinated debenture | NorCal Community Bancorp Trust II
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 4,124
Effective interest rate		2.36%
Basis spread on subordinated debenture		1.40%
Subordinated debenture | Maximum
Debt Instrument [Line Items]
Debenture distribution deferral period	5 years

XML

Borrowings - Schedule of Borrowings (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Subordinated debenture, Carrying Value	$ 5,586	$ 5,395
Subordinated debenture
Debt Instrument [Line Items]
Subordinated debenture, Carrying Value	5,586	5,395
Subordinated debenture, Average Balance	$ 5,493	$ 5,288
Borrowings, Average Rate	7.80%	7.94%
Line of Credit | Federal Home Loan Bank Borrowings
Debt Instrument [Line Items]
FHLB overnight borrowings and advances, Carrying Value	$ 0	$ 15,000
FHLB overnight borrowings and advances, Average Balance	$ 6,803	$ 15,000
Borrowings, Average Rate	6.59%	2.07%
Federal Home Loan Bank Borrowings | Line of Credit
Debt Instrument [Line Items]
Short-term Debt	$ 0	$ 52,000
FHLB overnight borrowings and advances, Average Balance	$ 5,383	$ 784
Borrowings, Average Rate	0.42%	0.38%

XML

Stockholders' Equity and Stock Plans - Narrative (Details) $ / shares in Units, $ in Thousands		1 Months Ended		12 Months Ended
	Jan. 20, 2017 $ / shares	Sep. 30, 2015 $ / shares shares	Nov. 30, 2011 investor	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($) shares	Jun. 17, 2016	May 11, 2010 shares	Jul. 02, 2007	Jul. 01, 2007 shares	May 08, 2007 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of institutional investors that purchased warrant | investor			2
Unrecognized compensation expense | $				$ 1,600
Total compensation cost for share-based payment arrangements | $				994	$ 636	$ 446
Share-based compensation income tax benefit recognized | $				318	194	128
Tax benefit realized from disqualifying dispositions of incentive stock options | $				$ 70	$ 49	76
Percentage of share ownership defining an acquiring person							10.00%		15.00%
Preferred stock, authorized (in shares)				5,000,000	5,000,000
Preferred stock, no par value (in dollars per share) | $ / shares				$ 0	$ 0
Subsequent event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends declared per common share (usd per share) | $ / shares	$ 0.27
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total grant-date fair value of option shares vested | $				$ 282	$ 202	187
Stock options | During 2006 through 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				5 years
Expiration period of grants				10 years
Stock options | During 2006 through 2014 | Vesting Rate, Year One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				20.00%
Stock options | During 2006 through 2014 | Vesting Rate, Year Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				20.00%
Stock options | During 2006 through 2014 | Vesting Rate, Year Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				20.00%
Stock options | During 2006 through 2014 | Vesting Rate Year Four
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				20.00%
Stock options | During 2006 through 2014 | Vesting Rate Year Five
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				20.00%
Stock options | Prior to 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				4 years
Expiration period of grants				7 years
Stock options | Prior to 2016 | Immediately Upon Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				20.00%
Stock options | Prior to 2016 | Vesting Rate, Year One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				20.00%
Stock options | Prior to 2016 | Vesting Rate, Year Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				20.00%
Stock options | Prior to 2016 | Vesting Rate, Year Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				20.00%
Stock options | Prior to 2016 | Vesting Rate Year Four
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				20.00%
Stock options | After 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				33.00%
Award vesting period				3 years
Expiration period of grants				10 years
Stock options | During 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				33.00%
Award vesting period				3 years
Expiration period of grants				10 years
Restricted stock award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total grant-date fair value of option shares vested | $				$ 380	$ 262	$ 227
Restricted stock award | During 2006 through 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				5 years
Expiration period of grants				10 years
Restricted stock award | During 2006 through 2014 | Vesting Rate, Year One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				20.00%
Restricted stock award | During 2006 through 2014 | Vesting Rate, Year Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				20.00%
Restricted stock award | During 2006 through 2014 | Vesting Rate, Year Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				20.00%
Restricted stock award | During 2006 through 2014 | Vesting Rate Year Four
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				20.00%
Restricted stock award | During 2006 through 2014 | Vesting Rate Year Five
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				20.00%
Performance shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				3 years
Minimum | Performance shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				0.00%
Maximum | Performance shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				200.00%
Director Stock Plan, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common shares approved to be issued in each plan								150,000
Number of shares available for future grants under plan				113,842
Equity Plan, 2007
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common shares approved to be issued in each plan											500,000
Number of shares available for future grants under plan				155,750
Number of shares to be granted				250,000
Employee Stock Purchase Plan, 2007
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common shares approved to be issued in each plan										200,000
Number of shares available for future grants under plan				192,965
Discount from closing market price at end of each quarter				5.00%
Employee Stock Purchase Plan, 2007 | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Approved payroll deduction to purchase shares, percentage				1.00%
Employee Stock Purchase Plan, 2007 | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Approved payroll deduction to purchase shares, percentage				15.00%
Former 1999 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options granted				0
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock shares authorized to be purchased by warrant		157,711
Exercise price of warrant to purchase common stock | $ / shares		$ 26.63
Net issuance of shares of common stock from cashless exercise (in shares)		70,591
Common Stock | Director Stock Plan, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded in period from plan				4,607	5,295	5,306
Common Stock | U.S. Treasury Capital Purchase Program (TCPP)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock shares authorized to be purchased by warrant				154,242
Exercise price of warrant to purchase common stock | $ / shares				$ 27.23

XML

Stockholders' Equity and Stock Plans - Options Outstanding Rollforward (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Number of Shares
Options outstanding, beginning balance (in shares)	185,269	194,672	220,456
Granted (in shares)	32,637	28,320	26,421
Cancelled, expired or forfeited (in shares)		(652)	(2,790)
Exercised (in shares)	(36,117)	(37,071)	(49,415)
Options outstanding, ending balance (in shares)	181,789	185,269	194,672	220,456
Exercisable (vested), ending balance (in shares)	103,211	114,581	133,153
Weighted Average Exercise Price
Options outstanding, beginning balance (usd per share)	$ 38.35	$ 35.14	$ 32.74
Granted (usd per share)	49.37	50.70	44.83
Cancelled, expired or forfeited (usd per share)		48.38	39.01
Exercised (usd per share)	33.98	30.72	29.39
Options outstanding, ending balance (usd per share)	41.20	38.35	35.14	$ 32.74
Exercisable (vested), ending balance (usd per share)	$ 36.65	$ 34.12	$ 32.31
Aggregate Intrinsic Value
Options outstanding, beginning balance	$ 2,788	$ 3,398	$ 2,349
Exercised	661	755	771
Options outstanding, ending balance	5,190	2,788	3,398	$ 2,349
Exercisable (vested) at year end	$ 3,416	$ 2,209	$ 2,701
Weighted Average Grant-Date Fair Value
Granted (usd per share)	$ 10.11	$ 12.21	$ 12.04
Weighted Average Remaining Contractual Term
Options outstanding (in years)	5 years 9 months 7 days	5 years	4 years 5 months 22 days	4 years 18 days
Exercisable (vested)	4 years 2 months 4 days	3 years 2 months 15 days	2 years 10 months 16 days

XML

Stockholders' Equity and Stock Plans - Options Outstanding, Vested and Expected to Vest (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) $ / shares shares
Equity [Abstract]
Number of options | shares	177,122
Weighted average exercise price (usd per share) | $ / shares	$ 41.03
Aggregate intrinsic value | $	$ 5,086
Weighted average remaining contractual term (in years)	5 years 8 months 16 days

XML

Stockholders' Equity and Stock Plans - Non-vested Awards Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Number of Shares
Non-vested awards, beginning balance (in shares)	31,388	22,423	22,521
Granted (in shares)	16,910	15,970	8,523
Vested (in shares)	(8,599)	(6,555)	(6,554)
Forfeited (in shares)		(450)	(2,067)
Non-vested awards, ending balance (in shares)	39,699	31,388	22,423
Weighted Average Grant-Date Fair Value
Non-vested awards, beginning balance (usd per share)	$ 46.24	$ 41.25	$ 37.59
Granted (usd per share)	49.65	50.75	45.36
Vested (usd per share)	44.14	40.00	34.65
Forfeited (usd per share)		48.45	39.32
Non-vested awards, ending balance (usd per share)	$ 48.15	$ 46.24	$ 41.25

XML

Stockholders' Equity and Stock Plans - Options Outstanding by Price Range (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options Outstanding (in shares)	181,789	185,269	194,672	220,456
Stock Options Outstanding, Remaining Contractual Life (in years)	5 years 9 months 7 days	5 years	4 years 5 months 22 days	4 years 18 days
Stock Options Outstanding, Weighted Average Exercise Price (usd per share)	$ 41.20	$ 38.35	$ 35.14	$ 32.74
$20.01 - $25.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Limit (usd per share)	20.00
Range of Exercise Prices, Upper Limit (usd per share)	25.00
$25.01 - $30.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Limit (usd per share)	25.01
Range of Exercise Prices, Upper Limit (usd per share)	30.00
$30.01 - $35.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Limit (usd per share)	30.01
Range of Exercise Prices, Upper Limit (usd per share)	35.00
$35.01 - $40.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Limit (usd per share)	35.01
Range of Exercise Prices, Upper Limit (usd per share)	40.00
$40.01 - $45.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Limit (usd per share)	40.01
Range of Exercise Prices, Upper Limit (usd per share)	45.00
$45.01 - $50.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Limit (usd per share)	45.01
Range of Exercise Prices, Upper Limit (usd per share)	50.00
$50.01 - $55.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Limit (usd per share)	50.01
Range of Exercise Prices, Upper Limit (usd per share)	$ 55.00
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options Outstanding (in shares)	181,789
Stock Options Outstanding, Remaining Contractual Life (in years)
Stock Options Exercisable (in shares)	103,211
Stock options | $20.01 - $25.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options Outstanding (in shares)	13,138
Stock Options Outstanding, Remaining Contractual Life (in years)	2 years 3 months 18 days
Stock Options Outstanding, Weighted Average Exercise Price (usd per share)	$ 22.25
Stock Options Exercisable (in shares)	13,138
Stock Options Exercisable, Weighted Average Exercise Price (usd per share)	$ 22.25
Stock options | $25.01 - $30.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options Outstanding (in shares)	10,180
Stock Options Outstanding, Remaining Contractual Life (in years)	1 year 3 months 18 days
Stock Options Outstanding, Weighted Average Exercise Price (usd per share)	$ 28.75
Stock Options Exercisable (in shares)	10,180
Stock Options Exercisable, Weighted Average Exercise Price (usd per share)	$ 28.75
Stock options | $30.01 - $35.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options Outstanding (in shares)	9,195
Stock Options Outstanding, Remaining Contractual Life (in years)	3 years 3 months 18 days
Stock Options Outstanding, Weighted Average Exercise Price (usd per share)	$ 33.10
Stock Options Exercisable (in shares)	9,195
Stock Options Exercisable, Weighted Average Exercise Price (usd per share)	$ 33.10
Stock options | $35.01 - $40.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options Outstanding (in shares)	46,588
Stock Options Outstanding, Remaining Contractual Life (in years)	4 years 1 month 6 days
Stock Options Outstanding, Weighted Average Exercise Price (usd per share)	$ 37.70
Stock Options Exercisable (in shares)	39,038
Stock Options Exercisable, Weighted Average Exercise Price (usd per share)	$ 37.48
Stock options | $40.01 - $45.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options Outstanding (in shares)	29,551
Stock Options Outstanding, Remaining Contractual Life (in years)	5 years 10 months 24 days
Stock Options Outstanding, Weighted Average Exercise Price (usd per share)	$ 41.95
Stock Options Exercisable (in shares)	17,130
Stock Options Exercisable, Weighted Average Exercise Price (usd per share)	$ 41.91
Stock options | $45.01 - $50.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options Outstanding (in shares)	45,187
Stock Options Outstanding, Remaining Contractual Life (in years)	8 years 8 months 12 days
Stock Options Outstanding, Weighted Average Exercise Price (usd per share)	$ 48.40
Stock Options Exercisable (in shares)	5,020
Stock Options Exercisable, Weighted Average Exercise Price (usd per share)	$ 45.88
Stock options | $50.01 - $55.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options Outstanding (in shares)	27,950
Stock Options Outstanding, Remaining Contractual Life (in years)	7 years 10 months 24 days
Stock Options Outstanding, Weighted Average Exercise Price (usd per share)	$ 50.70
Stock Options Exercisable (in shares)	9,510
Stock Options Exercisable, Weighted Average Exercise Price (usd per share)	$ 50.69

XML

Stockholders' Equity and Stock Plans - Valuation Assumptions (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	1.37%	1.67%	2.04%
Expected dividend yield on common stock	2.02%	1.75%	1.70%
Expected life in years	6 years	6 years	6 years
Expected price volatility	25.56%	28.06%	30.32%

XML

Stockholders' Equity and Stock Plans - Dividends (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Equity [Abstract]
Cash dividends to common stockholders	$ 6,223	$ 5,390	$ 4,733
Cash dividends paid per common share	$ 1.02	$ 0.90	$ 0.80
Retained earnings	$ 146,464	$ 129,553
Stockholders' equity	$ 230,563	$ 214,473	$ 200,026	$ 180,887
Period used to determine amount available for payment of dividends based on restriction (in years)	3 years
Amount of retained earnings available for payment of dividends based on restriction	$ 50,800
Cash held	$ 3,500

XML

Fair Value of Assets and Liabilities - Recorded on a Recurring Basis (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) security	Dec. 31, 2015 USD ($) security
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 372,580	$ 417,787
Derivative financial assets (interest rate contracts)	55	3
Derivative financial liabilities (interest rate contracts)	$ 933	$ 1,658
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of securities | security	0	0
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of securities | security	1
Assets and liabilities at fair value measured on a recurring basis | Carrying Value | Interest rate contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative financial assets (interest rate contracts)	$ 55	$ 3
Derivative financial liabilities (interest rate contracts)	933	1,658
Assets and liabilities at fair value measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest rate contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative financial assets (interest rate contracts)	0	0
Derivative financial liabilities (interest rate contracts)	0	0
Assets and liabilities at fair value measured on a recurring basis | Significant Other Observable Inputs (Level 2) | Interest rate contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative financial assets (interest rate contracts)	55	3
Derivative financial liabilities (interest rate contracts)	933	1,658
Assets and liabilities at fair value measured on a recurring basis | Significant Unobservable Inputs (Level 3) | Interest rate contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative financial assets (interest rate contracts)	0	0
Derivative financial liabilities (interest rate contracts)	0	0
Mortgage-backed securities and collaterized mortgage obligations issued by U.S. government agencies | Assets and liabilities at fair value measured on a recurring basis | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	254,041	190,093
Mortgage-backed securities and collaterized mortgage obligations issued by U.S. government agencies | Assets and liabilities at fair value measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Mortgage-backed securities and collaterized mortgage obligations issued by U.S. government agencies | Assets and liabilities at fair value measured on a recurring basis | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	253,434	188,381
Mortgage-backed securities and collaterized mortgage obligations issued by U.S. government agencies | Assets and liabilities at fair value measured on a recurring basis | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	607	1,712
Debentures of government sponsored agencies | Assets and liabilities at fair value measured on a recurring basis | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	35,403	160,892
Debentures of government sponsored agencies | Assets and liabilities at fair value measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Debentures of government sponsored agencies | Assets and liabilities at fair value measured on a recurring basis | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	35,403	160,892
Debentures of government sponsored agencies | Assets and liabilities at fair value measured on a recurring basis | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Privately-issued CMOs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	419	4,150
Privately-issued CMOs | Assets and liabilities at fair value measured on a recurring basis | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	419	4,150
Privately-issued CMOs | Assets and liabilities at fair value measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Privately-issued CMOs | Assets and liabilities at fair value measured on a recurring basis | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	419	4,150
Privately-issued CMOs | Assets and liabilities at fair value measured on a recurring basis | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Obligations of state and political subdivisions | Assets and liabilities at fair value measured on a recurring basis | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	77,701	57,673
Obligations of state and political subdivisions | Assets and liabilities at fair value measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Obligations of state and political subdivisions | Assets and liabilities at fair value measured on a recurring basis | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	77,701	57,673
Obligations of state and political subdivisions | Assets and liabilities at fair value measured on a recurring basis | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Corporate bonds | Assets and liabilities at fair value measured on a recurring basis | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	5,016	4,979
Corporate bonds | Assets and liabilities at fair value measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Corporate bonds | Assets and liabilities at fair value measured on a recurring basis | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	5,016	4,979
Corporate bonds | Assets and liabilities at fair value measured on a recurring basis | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	$ 0
U.S. government agency obligation collateralized by loans guaranteed by SBA program
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Decrease in unrealized gain (loss) due to transfers to Level 3	$ 15

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Fair Value of Assets and Liabilities - Recorded on Nonrecurring Basis (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate for selling costs applied to all properties	6.00%
Change in estimated fair value of OREO as of acquisition date	$ (13)	$ (40)
Financial instruments at fair value measured on a nonrecurring basis | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate	408	421
Financial instruments at fair value measured on a nonrecurring basis | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate	408	421
Financial instruments at fair value measured on a nonrecurring basis | Fair Value Hierarcy (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate	0	0
Financial instruments at fair value measured on a nonrecurring basis | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate	$ 0	$ 0

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Fair Value of Assets and Liabilities - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Nov. 29, 2013
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Investment securities held to maturity	$ 45,097	$ 71,054
Subordinated debenture
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Subordinated debentures			$ 4,950
Subordinated debenture | NorCal Community Bancorp Trust I
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Basis spread on subordinated debenture	3.05%
Subordinated debenture | NorCal Community Bancorp Trust II
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Basis spread on subordinated debenture	1.40%
Fair Value Hierarcy (Level 1) | Carrying Value
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash and cash equivalents	$ 48,804	26,343
Fair Value Hierarcy (Level 1) | Fair Value
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash and cash equivalents	48,804	26,343
Fair Value Hierarchy (Level 2) | Carrying Value
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Investment securities held to maturity	44,438	69,637
Interest receivable	6,319	6,643
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Deposits	1,772,700	1,728,226
Federal Home Loan Bank borrowing	0	67,000
Interest payable	134	187
Fair Value Hierarchy (Level 2) | Fair Value
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Investment securities held to maturity	45,097	71,054
Interest receivable	6,319	6,643
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Deposits	1,773,102	1,728,717
Federal Home Loan Bank borrowing	0	67,279
Interest payable	134	187
Fair Value Hierarchy (Level 3) | Carrying Value
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Loans, net	1,471,174	1,436,229
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Subordinated debentures	5,586	5,395
Fair Value Hierarchy (Level 3) | Fair Value
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Loans, net	1,473,360	1,470,380
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Subordinated debentures	$ 5,083	$ 5,132

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Benefit Plans - Deferred Compensation Plan (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Jan. 01, 2016	Dec. 31, 2015	Jan. 01, 2015	Jan. 01, 2014
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Interest rate earned on deferred amounts, prime rate first business day of year		3.50%		3.25%	3.25%
Deferred compensation obligation	$ 3.2		$ 3.0
Annual Salary | Management
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Maximum percentage of compensation allowed to be deferred	80.00%
Deferred Bonus | Management
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Maximum percentage of compensation allowed to be deferred	100.00%

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Benefit Plans - Defined Contribution Plan (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) date	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Defined Contribution Plan Disclosure [Line Items]
Minimum age of eligible employee for 401(k) plan	18 years
Minimum employment period to qualify for 401(k) plan	90 days
Number of open enrollment dates for 401(k) plan | date	4
Minimum annual contribution per employee, percent of eligible compensation	1.00%
Maximum annual contribution per employee, percent of eligible compensation	50.00%
Employer matching contribution percentage	60.00%	50.00%
Employer matching contribution maximum amount	$ 4
Employer contributions	$ 589	$ 555	$ 548
Bank of Marin Employee Stock Ownership and Savings Plan (the Plan)
Defined Contribution Plan Disclosure [Line Items]
Annual vesting percentage	20.00%
Defined contribution plan, number of years to be fully vested	5 years
Cash contributed to the ESOP	$ 1,200	$ 1,100	$ 1,200
Employee Stock Option Plan (ESOP), January 2010
Defined Contribution Plan Disclosure [Line Items]
Defined contribution plan, number of years to be fully vested	5 years

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Benefit Plans - Defined Benefit Plan (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Compensation and Retirement Disclosure [Abstract]
Percentage of salary paid upon retirement	25.00%
Period before ratable vesting begins	5 years
Age ratable vesting ends	65 years
Liability under the Salary Continuation Plan	$ 1,000	$ 823

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Income Taxes - Components of Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current tax provision
Federal	$ 9,710	$ 7,097	$ 8,523
State	3,794	2,931	3,195
Total current	13,504	10,028	11,718
Deferred tax provision (benefit)
Federal	(206)	382	(146)
State	48	80	126
Total deferred	(158)	462	(20)
Total income tax provision	$ 13,346	$ 10,490	$ 11,698

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Income Taxes - Deferred Tax Asset and Liability (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets:
Allowance for loan losses and off-balance sheet credit commitments	$ 6,871,000	$ 5,918,000
Net operating loss carryforwards from the NorCal acquisition	3,582,000	4,090,000
Net unrealized loss on securities available-for-sale	2,543,000	59,000
Deferred compensation plan and salary continuation plan	1,773,000	1,619,000
State franchise tax	1,300,000	1,005,000
Accrued but unpaid expenses	1,251,000	1,188,000
Fair value adjustment on loans acquired from the NorCal acquisition	799,000	1,197,000
Deferred rent and other lease incentives	547,000	595,000
Depreciation and disposals on premises and equipment	528,000	231,000
Other real estate owned	448,000	448,000
Stock-based compensation	398,000	273,000
Interest received on nonaccrual loans	185,000	864,000
Other	196,000	381,000
Total gross deferred tax assets	20,421,000	17,868,000
Deferred tax liabilities:
Deferred loan origination costs and fees	(2,784,000)	(2,567,000)
Unaccreted discount on subordinated debentures	(1,119,000)	(1,200,000)
Core deposit intangible asset	(1,085,000)	(1,309,000)
Accretion on investment securities	(54,000)	(55,000)
Other	(42,000)	(42,000)
Total gross deferred tax liabilities	(5,084,000)	(5,173,000)
Net deferred tax assets	15,337,000	12,695,000
Valuation allowance of deferred tax assets	0	$ 0
Federal
Deferred tax liabilities:
Net operating loss carryforwards expected to expire	6,300,000
California
Deferred tax liabilities:
Net operating loss carryforwards expected to expire	$ 19,300,000

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Income Taxes - Effective Income Tax Reconciliation (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Effective Income Tax Rate Reconciliation, Percent
Federal statutory income tax rate	35.00%	35.00%	35.00%
California franchise tax, net of federal tax benefit	6.80%	6.80%	6.80%
Tax exempt interest on municipal securities and loans	(4.00%)	(4.20%)	(3.30%)
Tax exempt earnings on bank owned life insurance	(0.80%)	(1.00%)	(0.90%)
Low income housing tax credits	(0.30%)	(0.20%)	(0.10%)
Other	(0.10%)	(0.10%)	(0.30%)
Effective Tax Rate	36.60%	36.30%	37.20%

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Commitments and Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating Leases
Commitments under operating leases, 2017	$ 3,850
Commitments under operating leases, 2018	3,919
Commitments under operating leases, 2019	3,725
Commitments under operating leases, 2020	3,405
Commitments under operating leases, 2021	2,114
Commitments under operating leases, Thereafter	4,069
Commitments under operating leases, Total	21,082
Minimum payments due on minimum sublease rentals under non-cancelable subleases	151
Rent expense included in occupancy expense	3,900	$ 4,200	$ 4,200
Visa Inc.
Loss Contingencies [Line Items]
Balance of escrow account for legal settlements maintained by Visa	1,000,000
Estimated amount due to class plaintiffs in Visa litigation	$ 4,000,000

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Concentrations of Credit Risk (Details) - Credit concentration risk $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($) customer	Dec. 31, 2015 USD ($)
U.S. Government, its agencies and Government Sponsored Enterprises (GSEs)
Concentration Risk [Line Items]
Concentration risk percentage	72.00%	74.40%
Concentration risk amount | $	$ 299.5	$ 362.6
Loans on real estate
Concentration Risk [Line Items]
Concentration risk percentage	79.00%	80.00%
Loans portfolio
Concentration Risk [Line Items]
Number of major borrowers | customer	0
Concentration risk, threshold for major borrower, percentage	5.00%

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Derivative Financial Instruments and Hedging Activities - Narrative (Details) $ in Thousands	1 Months Ended		12 Months Ended
	Sep. 30, 2016 derivative	Apr. 30, 2016 derivative	Dec. 31, 2016 USD ($) derivative	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Derivatives, Fair Value [Line Items]
Derivative, Number of Instruments Terminated | derivative	1	1
Interest rate contracts fair value, Asset derivatives			$ 55	$ 3
Interest rate contracts fair value			933	1,658
Fair value hedge
Derivatives, Fair Value [Line Items]
Net hedge ineffectiveness gain (loss), derivatives			113	(80)	$ 194
Fair value hedge | Interest income
Derivatives, Fair Value [Line Items]
Increase (decrease) in value of designated interest rate swaps due to LIBOR interest rate movements recognized in interest income			778	280	(377)
Payment on interest rate swaps recorded in interest income			(556)	(918)	(1,002)
(Decrease) increase in value of hedged loans recognized in interest income			(571)	(308)	662
Decrease in value of yield maintenance agreement recognized against interest income			(94)	(52)	(91)
Net loss on derivatives recognized against interest income			(443)	(998)	$ (808)
Fair value hedge | Designated as hedging instrument
Derivatives, Fair Value [Line Items]
Derivatives, accrued interest, interest rate swaps			$ 13	28
Interest rate swap | Fair value hedge | Designated as hedging instrument
Derivatives, Fair Value [Line Items]
Number of derivative instruments | derivative			5
Interest rate swap | Fair value hedge | Designated as hedging instrument | Other assets
Derivatives, Fair Value [Line Items]
Interest rate contracts notional amounts, Asset derivatives			$ 4,217	4,407
Interest rate swap | Fair value hedge | Designated as hedging instrument | Other liabilities
Derivatives, Fair Value [Line Items]
Interest rate contracts notional amount, Liability derivatives			15,495	22,187
Interest rate contract | Fair value hedge | Designated as hedging instrument | Other assets
Derivatives, Fair Value [Line Items]
Interest rate contracts fair value, Asset derivatives			55	3
Interest rate contract | Fair value hedge | Designated as hedging instrument | Other liabilities
Derivatives, Fair Value [Line Items]
Interest rate contracts fair value			$ 933	$ 1,658

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Derivative Financial Instruments and Hedging Activities - Offsetting of Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	$ 55	$ 3
Offset in the Statements of Condition	0	0
Net Amounts of Assets Presented in the Statements of Condition	55	3
Derivative, Collateral, Obligation to Return Securities	(55)	(3)
Gross Amounts Not Offset in the Statements of Condition, Cash Collateral Received	0	0
Net Amount	0	0
Other assets | Interest rate swap
Offsetting Assets [Line Items]
Derivative assets, accrued interest, interest rate swaps	1	1
Counterparty A
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	55	3
Offset in the Statements of Condition		0
Net Amounts of Assets Presented in the Statements of Condition	55	3
Derivative, Collateral, Obligation to Return Securities	(55)	(3)
Gross Amounts Not Offset in the Statements of Condition, Cash Collateral Received		0
Net Amount	$ 0	$ 0

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Derivative Financial Instruments and Hedging Activities - Offsetting of Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	$ 933	$ 1,658
Gross Amounts Offset in the Statements of Condition	0	0
Net Amounts of Liabilities Presented in the Statements of Condition	933	1,658
Gross Amounts Not Offset in the Statements of Condition, Financial Instruments	(55)	(3)
Gross Amounts Not Offset in the Statements of Condition, Cash Collateral Pledged	(878)	(1,655)
Net Amount	0	0
Other liabilities | Interest rate swap
Offsetting Liabilities [Line Items]
Derivative liabilities, accrued interest, interest rate swaps	12	27
Counterparty A
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	933	1,390
Gross Amounts Offset in the Statements of Condition		0
Net Amounts of Liabilities Presented in the Statements of Condition	933	1,390
Gross Amounts Not Offset in the Statements of Condition, Financial Instruments	(55)	(3)
Gross Amounts Not Offset in the Statements of Condition, Cash Collateral Pledged	(878)	(1,387)
Net Amount	$ 0	0
Counterparty B
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities		268
Gross Amounts Offset in the Statements of Condition		0
Net Amounts of Liabilities Presented in the Statements of Condition		268
Gross Amounts Not Offset in the Statements of Condition, Financial Instruments		0
Gross Amounts Not Offset in the Statements of Condition, Cash Collateral Pledged		(268)
Net Amount		$ 0

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Regulatory Matters (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Bancorp
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital, Actual, Amount	$ 247,453	$ 227,269
Total Capital (to risk-weighted assets), Actual, Ratio	14.32%	13.37%
Total Capital, Minimum Capital for Capital Adequacy Purposes, Amount	$ 149,039	$ 135,996
Total Capital (to risk-weighted assets), Minimum Capital for Capital Adequacy Purposes, Ratio	8.625%	8.00%
Total Capital, Minimum Capital to be Well Capitalized, Amount	$ 172,799	$ 169,995
Total Capital (to risk-weighted assets), Minimum to be Well Capitalized, Ratio	10.00%	10.00%
Tier 1 Risk Based Capital, Actual, Amount	$ 231,111	$ 211,521
Tier 1 Risk Based Capital (to risk-weighted assets), Actual, Ratio	13.37%	12.44%
Tier 1 Capital, Minimum Capital for Capital Adequacy Purposes, Amount	$ 114,479	$ 101,997
Tier 1 Risk Based Capital (to risk-weighted assets), Minimum Capital for Capital Adequacy Purposes, Ratio	6.625%	6.00%
Tier 1 Risk Based Capital, Minimum Capital to be Well Capitalized, Amount	$ 138,239	$ 135,996
Tier 1 Risk Based Capital (to risk-weighted assets), Minimum Capital to be Well Capitalized, Ratio	8.00%	8.00%
Tier 1 Leverage Capital, Amount, Actual	$ 231,111	$ 211,521
Tier 1 Leverage Capital (to average assets), Actual, Ratio	11.39%	10.67%
Tier 1 Leverage Capital, Minimum Capital for Capital Adequacy Purposes, Amount	$ 81,189	$ 79,296
Tier 1 Leverage Capital (to average assets), Minimum Capital for Capital Adequacy Purposes, Ratio	4.00%	4.00%
Tier 1 Leverage Capital, Actual, Amount	$ 101,486	$ 99,120
Tier 1 Leverage Capital (to average assets), Minimum Capital to be Well Capitalized, Ratio	5.00%	5.00%
Tier 1 Common Equity	$ 225,925	$ 206,724
Tier 1 Common Equity To Average Assets	13.07%	12.16%
Tier 1 Common Equity Required for Capital Adequacy	$ 88,559	$ 76,498
Tier 1 Common Equity Required for Capital Adequacy to Average Assets	5.125%	4.50%
Tier 1 Common Equity Required to be Well Capitalized	$ 112,319	$ 110,497
Tier 1 Common Equity Required to be Well Capitalized to Average Assets	6.50%	6.50%
The Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital, Actual, Amount	$ 243,468	$ 222,830
Total Capital (to risk-weighted assets), Actual, Ratio	14.09%	13.11%
Total Capital, Minimum Capital for Capital Adequacy Purposes, Amount	$ 149,016	$ 135,968
Total Capital (to risk-weighted assets), Minimum Capital for Capital Adequacy Purposes, Ratio	8.625%	8.00%
Total Capital, Minimum Capital to be Well Capitalized, Amount	$ 172,772	$ 169,960
Total Capital (to risk-weighted assets), Minimum to be Well Capitalized, Ratio	10.00%	10.00%
Tier 1 Risk Based Capital, Actual, Amount	$ 227,127	$ 207,082
Tier 1 Risk Based Capital (to risk-weighted assets), Actual, Ratio	13.15%	12.18%
Tier 1 Capital, Minimum Capital for Capital Adequacy Purposes, Amount	$ 114,462	$ 101,976
Tier 1 Risk Based Capital (to risk-weighted assets), Minimum Capital for Capital Adequacy Purposes, Ratio	6.625%	6.00%
Tier 1 Risk Based Capital, Minimum Capital to be Well Capitalized, Amount	$ 138,218	$ 135,968
Tier 1 Risk Based Capital (to risk-weighted assets), Minimum Capital to be Well Capitalized, Ratio	8.00%	8.00%
Tier 1 Leverage Capital, Amount, Actual	$ 227,127	$ 207,082
Tier 1 Leverage Capital (to average assets), Actual, Ratio	11.19%	10.45%
Tier 1 Leverage Capital, Minimum Capital for Capital Adequacy Purposes, Amount	$ 81,176	$ 79,268
Tier 1 Leverage Capital (to average assets), Minimum Capital for Capital Adequacy Purposes, Ratio	4.00%	4.00%
Tier 1 Leverage Capital, Actual, Amount	$ 101,469	$ 99,085
Tier 1 Leverage Capital (to average assets), Minimum Capital to be Well Capitalized, Ratio	5.00%	5.00%
Tier 1 Common Equity	$ 227,127	$ 207,082
Tier 1 Common Equity To Average Assets	13.15%	12.18%
Tier 1 Common Equity Required for Capital Adequacy	$ 88,546	$ 76,482
Tier 1 Common Equity Required for Capital Adequacy to Average Assets	5.125%	4.50%
Tier 1 Common Equity Required to be Well Capitalized	$ 112,302	$ 110,474
Tier 1 Common Equity Required to be Well Capitalized to Average Assets	6.50%	6.50%

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Financial Instruments with Off-Balance Sheet Risk (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Commercial lines of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loan commitments and standby letters of credit, off-balance sheet	$ 216,774	$ 191,305
Revolving home equity lines
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loan commitments and standby letters of credit, off-balance sheet	148,143	130,359
Undisbursed construction loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loan commitments and standby letters of credit, off-balance sheet	44,798	39,442
Personal and other lines of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loan commitments and standby letters of credit, off-balance sheet	10,635	11,112
Standby letters of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loan commitments and standby letters of credit, off-balance sheet	1,939	4,381
Lines of credit and standby letters of credit, unused
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loan commitments and standby letters of credit, off-balance sheet	$ 422,289	376,599
Percentage of commitments expiring in 2017	42.00%
Percentage of commitments expiring between 2018 and 2024	42.00%
Percentage of commitments expiring 2025 and thereafter	16.00%
Lines of credit and standby letters of credit, unused | Interest Payable and Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Allowance for off-balance sheet commitments	$ 899	$ 749

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Condensed Bank of Marin Bancorp Parent Only Financial Statements - Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items]
Other assets	$ 68,961	$ 62,284
Total assets	2,023,493	2,031,134
Subordinated debentures	5,586	5,395
Other liabilities	14,644	16,040
Total liabilities	1,792,930	1,816,661
Stockholders' equity	230,563	214,473	$ 200,026	$ 180,887
Total liabilities and stockholders' equity	2,023,493	2,031,134
Bancorp
Condensed Financial Statements, Captions [Line Items]
Cash and due from Bank of Marin	3,568	3,796
Investment in bank subsidiary	232,431	215,722
Other assets	670	770
Total assets	236,669	220,288
Subordinated debentures	5,586	5,395
Accrued expenses payable	96	109
Other liabilities	424	311
Total liabilities	6,106	5,815
Stockholders' equity	230,563	214,473
Total liabilities and stockholders' equity	$ 236,669	$ 220,288

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Condensed Bank of Marin Bancorp Parent Only Financial Statements - Income Statement (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Interest expense	$ 2,269	$ 2,251	$ 2,349
Non-interest expense	47,692	46,949	47,263
Income tax benefit	(13,346)	(10,490)	(11,698)
Net income	23,134	18,441	19,771
Bancorp
Condensed Financial Statements, Captions [Line Items]
Dividends from bank subsidiary	6,400	6,500	0
Miscellaneous Income	7	6	8
Total income	6,407	6,506	8
Interest expense	435	420	421
Non-interest expense	984	973	851
Total expense	1,419	1,393	1,272
Income (loss) before income taxes and equity in undistributed net income of subsidiary	4,988	5,113	(1,264)
Income tax benefit	594	583	532
Income (loss) before equity in undistributed net income of subsidiary	5,582	5,696	(732)
Earnings of bank subsidiary greater (less) than dividends received from bank subsidiary	17,552	12,745	20,503
Net income	$ 23,134	$ 18,441	$ 19,771

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Condensed Bank of Marin Bancorp Parent Only Financial Statements - Cash Flow Statement (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Net income	$ 23,134	$ 18,441	$ 19,771
Accretion of discount on subordinated debentures	191	210	216
Other assets	257	1,081	(184)
Other liabilities	(110)	1,355	(2,430)
Net cash provided by operating activities	25,446	23,682	18,857
Net cash used in investing activities	24,318	(263,278)	(42,652)
Dividends paid on common stock	(6,223)	(5,390)	(4,733)
Net cash (used in) provided by financing activities	(27,303)	224,572	(38,611)
Net (decrease) increase in cash and cash equivalents	22,461	(15,024)	(62,406)
Stock issued in payment of director fees	234	275	236
Bancorp
Condensed Financial Statements, Captions [Line Items]
Net income	23,134	18,441	19,771
Earnings of bank subsidiary greater than dividends received from bank subsidiary	(17,552)	(12,745)	(20,503)
Accretion of discount on subordinated debentures	191	210	216
Other assets	353	(298)	(88)
Intercompany receivable	171	(18)	0
Other liabilities	(302)	368	(99)
Net cash provided by operating activities	5,995	5,958	(703)
Capital contribution to subsidiary	(1,285)	(1,156)	(1,475)
Net cash used in investing activities	(1,285)	(1,156)	(1,475)
Stock options exercised and stock purchases	1,285	1,156	1,475
Dividends paid on common stock	(6,223)	(5,390)	(4,733)
Net cash (used in) provided by financing activities	(4,938)	(4,234)	(3,258)
Net (decrease) increase in cash and cash equivalents	(228)	568	(5,436)
Cash and cash equivalents at beginning of period	3,796	3,228	8,664
Cash and cash equivalents at end of period	3,568	3,796	3,228
Stock issued in payment of director fees	$ 234	$ 275	$ 236