10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)

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

For the quarterly period ended March 31, 2018

or

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

For the transition period from __________ to __________.

Commission file number: 001-09383

WESTAMERICA BANCORPORATION

(Exact Name of Registrant as Specified in Its Charter)

CALIFORNIA	94-2156203
(State or Other Jurisdiction of	(I.R.S. Employer
Incorporation or Organization)	Identification No.)

1108 FIFTH AVENUE, SAN RAFAEL, CALIFORNIA 94901

(Address of Principal Executive Offices) (Zip Code)

Registrant's Telephone Number, Including Area Code (707) 863-6000

Indicate by check mark whether the registrant (1) has filed all reports required 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 ☒ No ☐

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 (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Yes ☒ No ☐

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

Large accelerated filer ☒	Accelerated filer ☐	Non-accelerated filer ☐  (Do not check if a smaller reporting company)
Smaller reporting company ☐	Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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

Yes ☐ No ☒

Indicate the number of shares outstanding of each of the registrant's classes of common stock, as of the latest practicable date:

Title of Class	Shares outstanding as of April 26, 2018
Common Stock,	26,626,524
No Par Value

TABLE OF CONTENTS

		Page
Forward Looking Statements		3
PART I - FINANCIAL INFORMATION
Item 1	Financial Statements	4
	Notes to Unaudited Consolidated Financial Statements	9
Item 2	Management's Discussion and Analysis of Financial Condition and Results of Operations	29
Item 3	Quantitative and Qualitative Disclosures about Market Risk	49
Item 4	Controls and Procedures	50
PART II - OTHER INFORMATION
Item 1	Legal Proceedings	50
Item 1A	Risk Factors	50
Item 2	Unregistered Sales of Equity Securities and Use of Proceeds	50
Item 3	Defaults upon Senior Securities	51
Item 4	Mine Safety Disclosures	51
Item 5	Other Information	51
Item 6	Exhibits	51
Signatures		52
Exhibit Index		53
Exhibit 31.1 - Certification of Chief Executive Officer pursuant to Securities Exchange Act Rule 13a-14(a)/15d-14(a)		54
Exhibit 31.2 - Certification of Chief Financial Officer pursuant to Securities Exchange Act Rule 13a-14(a)/15d-14(a)		55
Exhibit 32.1 - Certification of Chief Executive Officer Required by 18 U.S.C. Section 1350		56
Exhibit 32.2 - Certification of Chief Financial Officer Required by 18 U.S.C. Section 1350		57

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FORWARD-LOOKING STATEMENTS

This report on Form 10-Q contains forward-looking statements about Westamerica Bancorporation (the “Company”) for which it claims the protection of the safe harbor provisions contained in the Private Securities Litigation Reform Act of 1995. Examples of forward-looking statements include, but are not limited to: (i) projections of revenues, expenses, future credit quality and performance, the appropriateness of the allowance for loan losses, loan growth or reduction, mitigation of risk in the Company’s loan and investment securities portfolios, income or loss, earnings or loss per share, the payment or nonpayment of dividends, capital structure and other financial items; (ii) statements of plans, objectives and expectations of the Company or its management or board of directors, including those relating to products or services; (iii) statements of future economic performance; and (iv) statements of assumptions underlying such statements. Words such as "believes", "anticipates", "expects", “estimates”, "intends", "targeted", "projected", “forecast”, "continue", "remain", "will", "should", "may" and other similar expressions are intended to identify forward-looking statements but are not the exclusive means of identifying such statements.

These forward-looking statements are based on Management’s current knowledge and belief and include information concerning the Company’s possible or assumed future financial condition and results of operations. A number of factors, some of which are beyond the Company’s ability to predict or control, could cause future results to differ materially from those contemplated. These factors include but are not limited to (1) the length and severity of difficulties in the global, national and California economies and the effects of government efforts to address those difficulties; (2) liquidity levels in capital markets; (3) fluctuations in asset prices including, but not limited to stocks, bonds, real estate, and commodities; (4) the effect of acquisitions and integration of acquired businesses; (5) economic uncertainty created by terrorist threats and attacks on the United States, the actions taken in response, and the uncertain effect of these events on the national and regional economies; (6) changes in the interest rate environment; (7) changes in the regulatory environment; (8) competitive pressure in the banking industry; (9) operational risks including a failure or breach in data processing or security systems or those of third party vendors and other service providers, including as a result of cyber attacks or fraud; (10) volatility of interest rate sensitive loans, deposits and investments; (11) asset/liability management risks and liquidity risks; (12) the effect of natural disasters, including earthquakes, fire, flood, drought, and other disasters, on the uninsured value of the Company’s assets and of loan collateral, the financial condition of debtors and issuers of investment securities, the economic conditions affecting the Company’s market place, and commodities and asset values; (13) changes in the securities markets and (14) the outcome of contingencies, such as legal proceedings. However, the reader should not consider the above-mentioned factors to be a complete set of all potential risks or uncertainties.

Forward-looking statements speak only as of the date they are made. The Company undertakes no obligation to update any forward-looking statements in this Report to reflect circumstances or events that occur after the date forward looking statements are made, except as may be required by law. The reader is directed to the Company's annual report on Form 10-K for the year ended December 31, 2017, for further discussion of factors which could affect the Company's business and cause actual results to differ materially from those expressed in any forward-looking statement made in this report.

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PART I - FINANCIAL INFORMATION

Item 1      Financial Statements

WESTAMERICA BANCORPORATION

CONSOLIDATED BALANCE SHEETS

(unaudited)

	At March 31,			At December 31,
	2018			2017
	(In thousands)
Assets:
Cash and due from banks	$	555,607		$	575,002
Equity securities		1,764			1,800
Debt securities available for sale		2,351,970			2,191,707
Debt securities held to maturity, with fair values of: $1,098,895 at March 31, 2018 and $1,155,342 at December 31, 2017		1,114,287			1,158,864
Loans		1,228,584			1,287,982
Allowance for loan losses		(23,081	)		(23,009	)
Loans, net of allowance for loan losses		1,205,503			1,264,973
Other real estate owned		1,376			1,426
Premises and equipment, net		35,790			35,301
Identifiable intangibles, net		3,280			3,850
Goodwill		121,673			121,673
Other assets		159,786			158,450
Total Assets	$	5,551,036		$	5,513,046
Liabilities:
Noninterest-bearing deposits	$	2,179,157		$	2,197,526
Interest-bearing deposits		2,688,710			2,630,087
Total deposits		4,867,867			4,827,613
Short-term borrowed funds		65,356			58,471
Other liabilities		35,730			36,723
Total Liabilities		4,968,953			4,922,807
Contingencies (Note 10)
Shareholders' Equity:
Common stock (no par value), authorized - 150,000 shares Issued and outstanding: 26,591 at March 31, 2018 and 26,425 at December 31, 2017		439,817			431,734
Deferred compensation		1,533			1,533
Accumulated other comprehensive loss		(43,452	)		(16,832	)
Retained earnings		184,185			173,804
Total Shareholders' Equity		582,083			590,239
Total Liabilities and  Shareholders' Equity	$	5,551,036		$	5,513,046

See accompanying notes to unaudited consolidated financial statements.

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WESTAMERICA BANCORPORATION

CONSOLIDATED STATEMENTS OF INCOME

(unaudited)

	For the Three Months Ended March 31,
	2018			2017
	(In thousands, except per share data)
Interest and Fee Income:
Loans	$	14,697		$	15,780
Equity securities		85			74
Debt securities available for sale		13,551			10,175
Debt securities held to maturity		6,174			7,295
Total Interest and Fee Income		34,507			33,324
Interest Expense:
Deposits		450			469
Short-term borrowed funds		9			11
Total Interest Expense		459			480
Net Interest and Fee Income		34,048			32,844
Provision for Loan Losses		-			-
Net Interest and Fee Income After Provision For Loan Losses		34,048			32,844
Noninterest Income:
Service charges on deposit accounts		4,752			4,923
Merchant processing services		2,420			1,875
Debit card fees		1,605			1,481
Trust fees		743			702
ATM processing fees		664			575
Other service fees		631			650
Financial services commissions		114			195
Equity securities losses		(36	)		-
Other noninterest income		1,062			1,256
Total Noninterest Income		11,955			11,657
Noninterest Expense:
Salaries and related benefits		13,351			13,070
Occupancy and equipment		4,691			4,887
Outsourced data processing services		2,340			2,139
Professional fees		785			611
Amortization of identifiable intangibles		570			800
Courier service		463			421
Other noninterest expense		2,014			2,687
Total Noninterest Expense		24,214			24,615
Income Before Income Taxes		21,789			19,886
Provision for income taxes		4,283			4,837
Net Income	$	17,506		$	15,049
Average Common Shares Outstanding		26,532			26,171
Average Diluted Common Shares Outstanding		26,665			26,329
Per Common Share Data:
Basic earnings	$	0.66		$	0.58
Diluted earnings		0.66			0.57
Dividends paid		0.40			0.39

See accompanying notes to unaudited consolidated financial statements.      

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WESTAMERICA BANCORPORATION

CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME

(unaudited)

	For the Three Months Ended
	March 31,
	2018			2017
	(In thousands)
Net income	$	17,506		$	15,049
Other comprehensive (loss) income:
Changes in net unrealized gains on debt securities available for sale		(32,846	)		1,074
Deferred tax benefit (expense)		9,709			(452	)
Changes in net unrealized gains on debt securities available for sale, net of tax		(23,137	)		622
Post-retirement benefit transition obligation amortization		-			15
Deferred tax expense		-			(6	)
Post-retirement benefit transition obligation amortization, net of tax		-			9
Total other comprehensive (loss) income		(23,137	)		631
Total comprehensive (loss) income	$	(5,631	)	$	15,680

See accompanying notes to unaudited consolidated financial statements.      

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WESTAMERICA BANCORPORATION

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY

(unaudited)

							Accumulated
	Common						Other
	Shares		Common		Deferred		Comprehensive			Retained
	Outstanding		Stock		Compensation		(Loss) Income			Earnings			Total
	(In thousands)
Balance, December 31, 2016		25,907	$	404,606	$	1,533	$	(10,074	)	$	165,302		$	561,367
Net income for the period											15,049			15,049
Other comprehensive income								631						631
Exercise of stock options		376		17,593										17,593
Stock based compensation				456										456
Stock awarded to employees		-		15										15
Dividends											(10,223	)		(10,223	)
Balance, March 31, 2017		26,283	$	422,670	$	1,533	$	(9,443	)	$	170,128		$	584,888
Balance, December 31, 2017		26,425	$	431,734	$	1,533	$	(16,832	)	$	173,804		$	590,239
Cumulative effect of equity securities losses reclassified								142			(142	)		-
Adjusted Balance, January 1, 2018		26,425		431,734		1,533		(16,690	)		173,662			590,239
Reclass stranded tax effects resulting from the Tax Cuts and Jobs Act								(3,625	)		3,625			-
Net income for the period											17,506			17,506
Other comprehensive loss								(23,137	)					(23,137	)
Exercise of stock options		166		7,534										7,534
Stock based compensation				525										525
Stock awarded to employees		-		24										24
Dividends											(10,608	)		(10,608	)
Balance, March 31, 2018		26,591	$	439,817	$	1,533	$	(43,452	)	$	184,185		$	582,083

See accompanying notes to unaudited consolidated financial statements.

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WESTAMERICA BANCORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited)

	For the Three Months Ended March 31,
	2018			2017
	(In thousands)
Operating Activities:
Net income	$	17,506		$	15,049
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization/accretion		1,643			5,754
Net amortization of deferred net loan (fees) cost		(40	)		26
Decrease in interest income receivable		1,019			1,744
Life insurance premiums paid		(203	)		(126	)
Increase in income taxes payable		4,302			2,896
(Increase) decrease in deferred tax asset		(20	)		1,441
Decrease in other assets		2,676			895
Stock option compensation expense		525			456
Increase in interest expense payable		15			8
Decrease in other liabilities		(984	)		(2,864	)
Equity securities losses		36			-
Writedown of premises and equipment		1			50
Net gain on sale of foreclosed assets		-			(55	)
Net Cash Provided by Operating Activities		26,476			25,274
Investing Activities:
Net repayments of loans		59,959			1,526
Net receipts under FDIC(1) indemnification agreements		-			129
Purchases of debt securities available for sale		(279,327	)		(51,297	)
Proceeds from sale/maturity/calls of debt securities available for sale		86,218			47,600
Proceeds from maturity/calls of debt securities held to maturity		44,577			45,640
Purchases of premises and equipment		(1,413	)		(501	)
Proceeds from sale of FRB(2) stock		-			24
Proceeds from sale of foreclosed assets		50			1,014
Net Cash (Used in) Provided by Investing Activities		(89,936	)		44,135
Financing Activities:
Net change in deposits		40,254			(6,768	)
Net change in short-term borrowings		6,885			14,533
Exercise of stock options/issuance of shares		7,534			17,593
Common stock dividends paid		(10,608	)		(10,223	)
Net Cash Provided by Financing Activities		44,065			15,135
Net Change In Cash and Due from Banks		(19,395	)		84,544
Cash and Due from Banks at Beginning of Period		575,002			462,271
Cash and Due from Banks at End of Period	$	555,607		$	546,815
Supplemental Cash Flow Disclosures:
Supplemental disclosure of noncash activities:
Loan collateral transferred to other real estate owned	$	-		$	-
Securities purchases pending settlement		-			-
Supplemental disclosure of cash flow activities:
Interest paid for the period		444			504
Income tax payments for the period		-			500

See accompanying notes to unaudited consolidated financial statements.

⁽¹⁾ Federal Deposit Insurance Corporation ("FDIC")

⁽²⁾ Federal Reserve Bank ("FRB")

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

Note 1: Basis of Presentation

The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America for interim financial information and pursuant to the rules and regulations of the Securities and Exchange Commission and follow general practices within the banking industry. The results of operations reflect interim adjustments, all of which are of a normal recurring nature and which, in the opinion of Management, are necessary for a fair presentation of the results for the interim periods presented. The interim results for the three months ended March 31, 2018 are not necessarily indicative of the results expected for the full year. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes as well as other information included in the Company's Annual Report on Form 10-K for the year ended December 31, 2017.

Note 2: Accounting Policies

The most significant accounting policies followed by the Company are presented in Note 1 to the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017. These policies, along with the disclosures presented in the other financial statement notes and in this discussion, provide information on how significant assets and liabilities are valued in the financial statements and how those values are determined. Based on the valuation techniques used and the sensitivity of financial statement amounts to the methods, assumptions, and estimates underlying those amounts, it is reasonably possible conditions could change materially affecting results of operations and financial conditions.

Application of these principles requires the Company to make certain estimates, assumptions, and judgments that affect the amounts reported in the financial statements and accompanying notes. These estimates, assumptions, and judgments are based on information available as of the date of the financial statements; accordingly, as this information changes, the financial statements could reflect different estimates, assumptions, and judgments. Certain accounting policies inherently have a greater reliance on the use of estimates, assumptions and judgments and as such have a greater possibility of producing results that could be materially different than originally reported. Estimates, assumptions and judgments are necessary when assets and liabilities are required to be recorded at fair value, when a decline in the value of an asset not carried on the financial statements at fair value warrants an impairment writedown or valuation reserve to be established, or when an asset or liability needs to be recorded contingent upon a future event. Carrying assets and liabilities at fair value inherently results in more financial statement volatility. The fair values and the information used to record valuation adjustments for certain assets and liabilities are based either on quoted market prices or are provided by other third-party sources, when available.

Certain amounts in prior periods have been reclassified to conform to the current presentation.

Recently Adopted Accounting Standards

In the three months ended March 31, 2018, the Company adopted the following new accounting guidance:

FASB Accounting Standard Update (ASU) 2014-09, Revenue (Topic 606): Revenue from Contracts with Customers, was issued May 2014. The ASU specifies a standardized approach for revenue recognition across industries and transactions. The ASU also requires additional disclosures. The scope of the ASU does not include revenue streams covered by other ASU topics; thus, Topic 606 does not apply to revenue related to financial instruments, guarantees and leases, such as the Company’s net interest income.

Approximately 73% of our revenue, including all of our net interest income and a portion of our noninterest income, is out of scope of the guidance. The contracts that are in scope of the guidance are primarily related to service charges and fees on deposit accounts, merchant processing fees, debit card fees, ATM processing fees, trust fees and other service charges, commissions and fees. We have completed analyzing the individual contracts in scope and determined our revenue recognition practices within the scope of the ASU as described below did not change in any material regard upon adoption of the ASU.

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Service Charges on Deposit Accounts: The Company earns fees from its deposit customers for transaction-based, account maintenance, and overdraft services. Transaction-based fees, which include services such as ATM use fees, stop payment charges, statement rendering, and ACH fees, are recognized at the time the transaction is executed as that is the point in time the Company fulfills the customer’s request. Account maintenance fees, which relate primarily to monthly maintenance, are earned over the course of a month, representing the period over which the Company satisfies the performance obligation. Overdraft fees are recognized at the point in time that the overdraft occurs. Service charges on deposits are withdrawn from the customer’s account balance.

Merchant Processing Services and Debit Card Fees: The Company earns interchange fees from cardholder transactions conducted through the payment networks. Interchange fees from cardholder transactions represent a percentage of the underlying transaction value and are recognized daily, concurrently with the transaction processing services provided to the cardholder.

Trust Fees: The Company earns trust fees from its contracts with customers to manage assets for investment or custody services. These fees are primarily earned over time as the Company provides the contracted monthly or quarterly services and are generally assessed based on a tiered scale of the market value of assets under management (AUM) at month-end. Other related services provided, which are based on a fixed fee schedule, are recognized when the services are rendered.

Gains/Losses on Sales of OREO: The Company records a gain or loss from the sale of OREO when control of the property transfers to the buyer, which generally occurs at the time of an executed deed. The Company does not finance the sale of OREO.

The Company adopted the ASU on January 1, 2018 and no cumulative adjustment was required.

FASB ASU 2016-01, Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, was issued January 2016. The ASU addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. Most notably, the ASU changes the income statement impact of equity investments held by the Company and the requirement for the Company to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes (Note 9).

The Company was required to adopt the ASU provisions on January 1, 2018, and for those equity securities with readily determinable fair values, the Company elected the retrospective transition approach with a cumulative effect adjustment to the balance sheet and for those equity securities that do not have readily determinable fair values, the Company elected the prospective transition approach. The impact of the adoption of this accounting standard on the Company’s consolidated financial statements will be subject to the price volatility of the equity investments. As a result of implementing the ASU provisions, effective January 1, 2018, the Company recorded a cumulative effect adjustment to retained earnings of $142 thousand.

FASB ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, was issued February 2018. The ASU eliminates the stranded tax effects resulting from the Tax Cuts and Jobs Act by allowing a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. The Company early adopted the provisions of the ASU effective January 1, 2018, by reclassifying the Company’s $3,625 thousand stranded tax effect.

Recently Issued Accounting Standards

FASB ASU 2016-02, Leases (Topic 842), was issued February 25, 2016. The provisions of the new standard require lessees to recognize most leases on-balance sheet, increasing reported assets and liabilities. Lessor accounting remains substantially similar to current U.S. GAAP.

The Company will be required to adopt the ASU provisions January 1, 2019, and plans to elect the modified retrospective transition approach. Management is evaluating the impact that the ASU will have on the Company’s financial statements. As of December 31, 2017, the Company leased 58 of its operating facilities; the remaining minimum lease payments were $17.5 million. The Company does not expect a material change in noninterest expenses upon adoption of the new standard.

FASB ASU 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, was issued on June 16, 2016. The ASU significantly changes estimates for credit losses related to financial assets measured at amortized cost and certain other contracts. For estimating credit losses, the FASB is replacing the incurred loss model with the current expected credit loss (CECL) model, which will accelerate recognition of credit losses. Additionally, credit losses relating to debt securities available-for-sale will be recorded through an allowance for credit losses under the new standard. The Company will also be required to provide additional disclosures related to the financial assets within the scope of the new standard.

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The Company will be required to adopt the ASU provisions on January 1, 2020. Management is evaluating the impact that the ASU will have on the Company’s consolidated financial statements. The ultimate adjustment to the allowance for loan losses will be accomplished through an offsetting after-tax adjustment to shareholders’ equity. Economic conditions and the composition of the Company’s loan portfolio at the time of adoption will influence the extent of the adopting accounting adjustment.

FASB ASU 2017-08, Receivables – Non-Refundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities, was issued March 2017. The ASU will shorten the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity.

The Company will be required to adopt the ASU provisions on January 1, 2019. Management is evaluating the impact the ASU will have on the Company’s financial statements.

FASB ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities, was issued August 2017. The ASU will expand and refine hedge accounting for both nonfinancial and financial risk components and align the recognition and presentation of the effects of the hedging instrument and the hedged item in the financial statements. The ASU also provides for a one-time reclassification of prepayable assets from held-to-maturity (HTM) to available for sale (AFS) regardless of derivative use.

The Company will be required to adopt the ASU provisions January 1, 2019. The Company does not currently engage in trading activities or use derivative instruments to control interest rate risk, even though such activities may be permitted with the approval of the Company’s Board of Directors. However, the Company is currently evaluating the prepayable assets in the HTM portfolio to determine if a one-time reclassification of prepayable assets from HTM to the AFS will occur upon implementation.

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Note 3: Investment Securities

Effective January 1, 2018, upon adoption of ASU 2016-01, equity securities included in the Company’s available for sale portfolio of $1,800 thousand were reclassified to equity securities. The reclassification of equity securities resulted in recording a cumulative effect adjustment to retained earnings of $142 thousand, net of tax.

At March 31, 2018, the market value of equity securities was $1,764 thousand. During the three months ended March 31, 2018, the Company recognized gross unrealized holding losses of $36 thousand in earnings.

An analysis of the amortized cost and fair value by major categories of debt securities available for sale, which are carried at fair value with net unrealized gains (losses) reported on an after-tax basis as a component of cumulative other comprehensive income, and debt securities held to maturity, which are carried at amortized cost, follows:

			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gains		Losses			Value
At March 31, 2018	(In thousands)
Debt securities available for sale
Securities of U.S. Government sponsored entities	$	122,291	$	1	$	(4,345	)	$	117,947
Agency residential mortgage-backed securities (MBS)		879,824		500		(32,684	)		847,640
Non-agency residential MBS		138		1		-			139
Agency commercial MBS		2,229		-		(39	)		2,190
Securities of U.S. Government entities		1,526		-		(6	)		1,520
Obligations of states and political subdivisions		181,386		2,910		(3,661	)		180,635
Corporate securities		1,226,267		523		(24,891	)		1,201,899
Total debt securities available for sale		2,413,661		3,935		(65,626	)		2,351,970
Debt securities held to maturity
Agency residential MBS		520,105		325		(16,728	)		503,702
Non-agency residential MBS		4,179		77		-			4,256
Agency commercial MBS		1,902		-		(9	)		1,893
Obligations of states and political subdivisions		588,101		4,419		(3,476	)		589,044
Total debt securities held to maturity		1,114,287		4,821		(20,213	)		1,098,895
Total	$	3,527,948	$	8,756	$	(85,839	)	$	3,450,865

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			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gains		Losses			Value
At December 31, 2017	(In thousands)
Debt securities available for sale
Securities of U.S. Government sponsored entities	$	122,285	$	1	$	(2,967	)	$	119,319
Agency residential MBS		787,679		522		(20,495	)		767,706
Non-agency residential MBS		153		1		-			154
Agency commercial MBS		2,244		-		(25	)		2,219
Securities of U.S. Government entities		1,612		-		(22	)		1,590
Obligations of states and political subdivisions		182,907		3,796		(1,482	)		185,221
Corporate securities		1,123,671		1,104		(9,277	)		1,115,498
Total debt securities available for sale		2,220,551		5,424		(34,268	)		2,191,707
Debt securities held to maturity
Agency residential MBS		545,883		606		(9,850	)		536,639
Non-agency residential MBS		4,462		70		-			4,532
Agency commercial MBS		9,041		-		(66	)		8,975
Obligations of states and political subdivisions		599,478		7,736		(2,018	)		605,196
Total debt securities held to maturity		1,158,864		8,412		(11,934	)		1,155,342
Total	$	3,379,415	$	13,836	$	(46,202	)	$	3,347,049

The amortized cost and fair value of debt securities by contractual maturity are shown in the following table s at the dates indicated:

	At March 31, 2018
	Debt Securities Available				Debt Securities Held
	for Sale				to Maturity
	Amortized		Fair		Amortized		Fair
	Cost		Value		Cost		Value
	(In thousands)
Maturity in years:
1 year or less	$	164,450	$	162,099	$	67,865	$	68,636
Over 1 to 5 years		1,098,360		1,075,777		248,126		247,858
Over 5 to 10 years		225,690		223,481		269,159		269,527
Over 10 years		42,970		40,644		2,951		3,023
Subtotal		1,531,470		1,502,001		588,101		589,044
MBS		882,191		849,969		526,186		509,851
Total	$	2,413,661	$	2,351,970	$	1,114,287	$	1,098,895

	At December 31, 2017
	Debt Securities Available				Debt Securities Held
	for Sale				to Maturity
	Amortized		Fair		Amortized		Fair
	Cost		Value		Cost		Value
	(In thousands)
Maturity in years:
1 year or less	$	193,337	$	193,385	$	50,295	$	51,105
Over 1 to 5 years		1,031,807		1,023,047		269,050		269,471
Over 5 to 10 years		159,266		160,042		277,170		281,546
Over 10 years		46,065		45,154		2,963		3,074
Subtotal		1,430,475		1,421,628		599,478		605,196
MBS		790,076		770,079		559,386		550,146
Total	$	2,220,551	$	2,191,707	$	1,158,864	$	1,155,342

- 13 -

Expected maturities of mortgage-related securities can differ from contractual maturities because borrowers have the right to call or prepay obligations with or without call or prepayment penalties. In addition, such factors as prepayments and interest rates may affect the yield on the carrying value of mortgage-related securities. At March 31, 2018 and December 31, 2017, the Company had no high-risk collateralized mortgage obligations as defined by regulatory guidelines.

An analysis of the gross unrealized losses of the debt securities available for sale portfolio follows:

	Debt Securities Available for Sale
	At March 31, 2018
	No. of		Less than 12 months					No. of		12 months or longer					No. of		Total
	Investment				Unrealized			Investment				Unrealized			Investment				Unrealized
	Positions		Fair Value		Losses			Positions		Fair Value		Losses			Positions		Fair Value		Losses
	($ in thousands)
Securities of U.S. Government sponsored entities		2	$	1,977	$	(12	)		8	$	115,889	$	(4,333	)		10	$	117,866	$	(4,345	)
Agency residential MBS		11		280,804		(6,163	)		52		492,453		(26,521	)		63		773,257		(32,684	)
Agency commercial MBS		2		2,190		(39	)		-		-		-			2		2,190		(39	)
Securities of U.S. Government entities		-		-		-			3		1,520		(6	)		3		1,520		(6	)
Obligations of states and political subdivisions		57		31,091		(636	)		35		49,993		(3,025	)		92		81,084		(3,661	)
Corporate securities		82		781,714		(16,548	)		34		258,551		(8,343	)		116		1,040,265		(24,891	)
Total		154	$	1,097,776	$	(23,398	)		132	$	918,406	$	(42,228	)		286	$	2,016,182	$	(65,626	)

An analysis of gross unrecognized losses of the debt securities held to maturity portfolio follows:

	Debt Securities Held to Maturity
	At March 31, 2018
	No. of		Less than 12 months					No. of		12 months or longer					No. of		Total
	Investment				Unrecognized			Investment				Unrecognized			Investment				Unrecognized
	Positions		Fair Value		Losses			Positions		Fair Value		Losses			Positions		Fair Value		Losses
	($ in thousands)
Agency residential MBS		23	$	33,919	$	(578	)		67	$	451,597	$	(16,150	)		90	$	485,516	$	(16,728	)
Agency commercial MBS		1		1,893		(9	)		-		-		-			1		1,893		(9	)
Obligations of states and political subdivisions		266		257,849		(1,557	)		58		57,422		(1,919	)		324		315,271		(3,476	)
Total		290	$	293,661	$	(2,144	)		125	$	509,019	$	(18,069	)		415	$	802,680	$	(20,213	)

The unrealized losses on the Company’s debt securities were caused by market conditions for these types of investments, particularly changes in risk-free interest rates. The Company evaluates debt securities on a quarterly basis including changes in security ratings issued by rating agencies, changes in the financial condition of the issuer, and, for mortgage-backed and asset-backed securities, delinquency and loss information with respect to the underlying collateral, changes in the levels of subordination for the Company’s particular position within the repayment structure and remaining credit enhancement as compared to expected credit losses of the security. Substantially all of these securities continue to be investment grade rated by a major rating agency. In addition to monitoring credit rating agency evaluations, Management performs its own evaluations regarding the credit worthiness of the issuer or the securitized assets underlying asset backed securities.

The Company does not intend to sell any debt securities and has concluded that it is more likely than not that it will not be required to sell the debt securities prior to recovery of the amortized cost basis. Therefore, the Company does not consider these debt securities to be other-than-temporarily impaired as of March 31, 2018.

The fair values of the debt securities could decline in the future if the general economy deteriorates, inflation increases, credit ratings decline, the issuer’s financial condition deteriorates, or the liquidity for debt securities declines. As a result, other than temporary impairments may occur in the future.

As of March 31, 2018 and December 31, 2017, the Company had debt securities pledged to secure public deposits and short-term borrowed funds of $696,058  thousand and $715,774 thousand, respectively.

- 14 -

An analysis of gross unrealized losses  of debt securities available for sale follows:

	Debt Securities Available for Sale
	At December 31, 2017
	No. of		Less than 12 months					No. of		12 months or longer					No. of		Total
	Investment				Unrealized			Investment				Unrealized			Investment				Unrealized
	Positions		Fair Value		Losses			Positions		Fair Value		Losses			Positions		Fair Value		Losses
	($ in thousands)
Securities of U.S. Government sponsored entities		1	$	996	$	(2	)		8	$	117,252	$	(2,965	)		9	$	118,248	$	(2,967	)
Agency residential MBS		7		238,554		(1,501	)		51		516,711		(18,994	)		58		755,265		(20,495	)
Non-agency residential MBS		1		1		-			-		-		-			1		1		-
Agency commercial MBS		2		2,219		(25	)		-		-		-			2		2,219		(25	)
Securities of U.S. Government entities		-		-		-			3		1,590		(22	)		3		1,590		(22	)
Obligations of states and political subdivisions		50		21,453		(228	)		35		52,071		(1,254	)		85		73,524		(1,482	)
Corporate securities		64		571,112		(4,047	)		38		282,924		(5,230	)		102		854,036		(9,277	)
Total		125	$	834,335	$	(5,803	)		135	$	970,548	$	(28,465	)		260	$	1,804,883	$	(34,268	)

An analysis of gross unrecognized losses of the debt securities held to maturity portfolio follows:

	Debt Securities Held to Maturity
	At December 31, 2017
	No. of		Less than 12 months					No. of		12 months or longer					No. of		Total
	Investment				Unrecognized			Investment				Unrecognized			Investment				Unrecognized
	Positions		Fair Value		Losses			Positions		Fair Value		Losses			Positions		Fair Value		Losses
	($ in thousands)
Agency residential MBS		15	$	30,218	$	(201	)		65	$	479,775	$	(9,649	)		80	$	509,993	$	(9,850	)
Agency commercial MBS		1		1,913		(4	)		1		7,062		(62	)		2		8,975		(66	)
Obligations of states and political subdivisions		146		131,032		(553	)		59		58,979		(1,465	)		205		190,011		(2,018	)
Total		162	$	163,163	$	(758	)		125	$	545,816	$	(11,176	)		287	$	708,979	$	(11,934	)

The following table provides information about the amount of interest income earned on investment securities which is fully taxable and which is exempt from regular federal income tax:

	For the Three Months
	Ended March 31,
	2018		2017
	(In thousands)
Taxable	$	14,935	$	12,147
Tax-exempt from regular federal income tax		4,875		5,397
Total interest income from investment securities	$	19,810	$	17,544

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- 15 -

Note 4: Loans and Allowance for Loan Losses

A summary of the major categories of loans outstanding is shown in the following table at the dates indicated.

	At March 31,		At December 31,
	2018		2017
	(In thousands)
Commercial	$	306,978	$	335,996
Commercial Real Estate		553,318		568,584
Construction		2,941		5,649
Residential Real Estate		59,484		65,183
Consumer Installment & Other		305,863		312,570
Total	$	1,228,584	$	1,287,982

Total loans outstanding reported above include loans purchased from the FDIC of $75,476  thousand and $83,478 thousand at March 31, 2018 and December 31, 2017, respectively. Loans purchased from the FDIC were separately reported in prior periods and have been reclassified into their respective categories in the current presentation.

Changes in the accretable yield for purchased loans were as follows:

	For the			For the
	Three Months Ended			Year Ended
	March 31, 2018			December 31, 2017
Accretable yield:	(In thousands)
Balance at the beginning of the period	$	738		$	1,237
Reclassification from nonaccretable difference		313			1,852
Accretion		(452	)		(2,351	)
Balance at the end of the period	$	599		$	738
Accretion	$	(452	)	$	(2,351	)
Change in FDIC indemnification		1			192
(Increase) in interest income	$	(451	)	$	(2,159	)

The following summarizes activity in the allowance for loan losses:

	Allowance for Loan Losses
	For the Three Months Ended March 31, 2018
													Consumer
				Commercial						Residential			Installment
	Commercial			Real Estate			Construction			Real Estate			and Other			Unallocated		Total
	(In thousands)
Allowance for loan losses:
Balance at beginning of period	$	7,746		$	3,849		$	335		$	995		$	6,418		$	3,666	$	23,009
Additions:
(Reversal) provision		(17	)		(25	)		(160	)		(87	)		37			252		-
Deductions:
Chargeoffs		(41	)		-			-			-			(1,365	)		-		(1,406	)
Recoveries		829			-			-			-			649			-		1,478
Net loan recoveries (losses)		788			-			-			-			(716	)		-		72
Total allowance for loan losses	$	8,517		$	3,824		$	175		$	908		$	5,739		$	3,918	$	23,081

	Allowance for Loan Losses
	For the Three Months Ended March 31, 2017
												Consumer
				Commercial					Residential			Installment
	Commercial			Real Estate		Construction			Real Estate			and Other			Unallocated			Total
	(In thousands)
Allowance for loan losses:
Balance at beginning of period	$	8,327		$	3,330	$	152		$	1,330		$	7,980		$	4,835		$	25,954
Additions:
Provision (reversal)		209			182		(40	)		(116	)		106			(341	)		-
Deductions:
Chargeoffs		(103	)		-		-			-			(1,739	)		-			(1,842	)
Recoveries		160			10		-			-			637			-			807
Net loan recoveries (losses)		57			10		-			-			(1,102	)		-			(1,035	)
Total allowance for loan losses	$	8,593		$	3,522	$	112		$	1,214		$	6,984		$	4,494		$	24,919

- 16 -

The allowance for loan losses and recorded investment in loans evaluated for impairment were as follows:

	Allowance for Loan Losses and Recorded Investment in Loans Evaluated for Impairment
	At March 31, 2018
	Commercial		Commercial Real Estate		Construction		Residential Real Estate		Consumer Installment and Other		Unallocated		Total
	(In thousands)
Allowance for loan losses:
Individually evaluated for impairment	$	4,777	$	214	$	-	$	-	$	-	$	-	$	4,991
Collectively evaluated for impairment		3,740		3,610		175		908		5,739		3,918		18,090
Purchased loans with evidence of credit deterioration		-		-		-		-		-		-		-
Total	$	8,517	$	3,824	$	175	$	908	$	5,739	$	3,918	$	23,081
Carrying value of loans:
Individually evaluated for impairment	$	10,513	$	11,393	$	-	$	206	$	-	$	-	$	22,112
Collectively evaluated for impairment		296,432		541,327		2,941		59,278		305,705		-		1,205,683
Purchased loans with evidence of credit deterioration		33		598		-		-		158		-		789
Total	$	306,978	$	553,318	$	2,941	$	59,484	$	305,863	$	-	$	1,228,584

	Allowance for Loan Losses and Recorded Investment in Loans Evaluated for Impairment
	At December 31, 2017
	Commercial		Commercial Real Estate		Construction		Residential Real Estate		Consumer Installment and Other		Unallocated		Total
	(In thousands)
Allowance for loan losses:
Individually evaluated for impairment	$	4,814	$	171	$	-	$	-	$	-	$	-	$	4,985
Collectively evaluated for impairment		2,932		3,678		335		995		6,418		3,666		18,024
Purchased loans with evidence of credit deterioration		-		-		-		-		-		-		-
Total	$	7,746	$	3,849	$	335	$	995	$	6,418	$	3,666	$	23,009
Carrying value of loans:
Individually evaluated for impairment	$	10,675	$	14,234	$	-	$	208	$	-	$	-	$	25,117
Collectively evaluated for impairment		325,291		553,769		5,649		64,975		312,406		-		1,262,090
Purchased loans with evidence of credit deterioration		30		581		-		-		164		-		775
Total	$	335,996	$	568,584	$	5,649	$	65,183	$	312,570	$	-	$	1,287,982

The Bank’s customers are small businesses, professionals and consumers. Given the scale of these borrowers, corporate credit rating agencies do not evaluate the borrowers’ financial condition. The Bank maintains a Loan Review Department which reports directly to Audit Committee of the Board of Directors. The Loan Review Department performs independent evaluations of loans and validates management assigned credit risk grades on evaluated loans using grading standards employed by bank regulatory agencies. Loans judged to carry lower-risk attributes are assigned a “pass” grade, with a minimal likelihood of loss. Loans judged to carry higher-risk attributes are referred to as “classified loans,” and are further disaggregated, with increasing expectations for loss recognition, as “substandard,” “doubtful,” and “loss.” Loan Review Department evaluations occur every calendar quarter. If the Bank becomes aware of deterioration in a borrower’s performance or financial condition between Loan Review Department examinations, assigned risk grades are re-evaluated promptly. Credit risk grades assigned by management and validated by the Loan Review Department are subject to review by the Bank’s regulatory authorities during regulatory examinations.

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- 17 -

The following summarizes the credit risk profile by internally assigned grade:

	Credit Risk Profile by Internally Assigned Grade
	At March 31, 2018
	Commercial		Commercial Real Estate		Construction		Residential Real Estate		Consumer Installment and Other		Total
	(In thousands)
Grade:
Pass	$	283,666	$	547,740	$	2,941	$	59,202	$	303,836	$	1,197,385
Substandard		23,312		5,578		-		282		1,523		30,695
Doubtful		-		-		-		-		177		177
Loss		-		-		-		-		327		327
Total	$	306,978	$	553,318	$	2,941	$	59,484	$	305,863	$	1,228,584

Credit risk profile reflects internally assigned grade of purchased covered loans without regard to FDIC indemnification.

	Credit Risk Profile by Internally Assigned Grade
	At December 31, 2017
	Commercial		Commercial Real Estate		Construction		Residential Real Estate		Consumer Installment and Other		Total
	(In thousands)
Grade:
Pass	$	324,185	$	548,853	$	5,649	$	62,253	$	310,429	$	1,251,369
Substandard		11,811		19,731		-		2,930		1,370		35,842
Doubtful		-		-		-		-		1		1
Loss		-		-		-		-		770		770
Total	$	335,996	$	568,584	$	5,649	$	65,183	$	312,570	$	1,287,982

Credit risk profile reflects internally assigned grade of purchased covered loans without regard to FDIC indemnification.

The following tables summarize loans by delinquency and nonaccrual status:

	Summary of Loans by Delinquency and Nonaccrual Status
	At March 31, 2018
	Current and Accruing		30-59 Days Past Due and Accruing		60-89 Days Past Due and Accruing		Past Due 90 Days or More and Accruing		Nonaccrual		Total Loans
	(In thousands)
Commercial	$	306,396	$	227	$	84	$	-	$	271	$	306,978
Commercial real estate		544,476		2,809		360		-		5,673		553,318
Construction		2,941		-		-		-		-		2,941
Residential real estate		59,184		300		-		-		-		59,484
Consumer installment and other		302,214		2,667		531		255		196		305,863
Total	$	1,215,211	$	6,003	$	975	$	255	$	6,140	$	1,228,584

	Summary of Loans by Delinquency and Nonaccrual Status
	At December 31, 2017
	Current and Accruing		30-59 Days Past Due and Accruing		60-89 Days Past Due and Accruing		Past Due 90 Days or More and Accruing		Nonaccrual		Total Loans
	(In thousands)
Commercial	$	334,908	$	627	$	164	$	-	$	297	$	335,996
Commercial real estate		561,883		1,143		125		-		5,433		568,584
Construction		5,649		-		-		-		-		5,649
Residential real estate		65,183		-		-		-		-		65,183
Consumer installment and other		307,445		3,321		1,077		531		196		312,570
Total	$	1,275,068	$	5,091	$	1,366	$	531	$	5,926	$	1,287,982

There were no commitments to lend additional funds to borrowers whose loans were on nonaccrual status at March 31, 2018 and December 31, 2017.

- 18 -

The following summarizes impaired loans:

	Impaired Loans
	At March 31,						At December 31,
	2018						2017
			Unpaid						Unpaid
	Recorded		Principal		Related		Recorded		Principal		Related
	Investment		Balance		Allowance		Investment		Balance		Allowance
	(In thousands)
With no related allowance recorded:
Commercial	$	1,183	$	1,227	$	-	$	1,212	$	1,271	$	-
Commercial real estate		9,766		11,752		-		13,169		14,985		-
Residential real estate		206		237		-		208		239		-
Consumer installment and other		354		461		-		360		466		-
Total with no related allowance recorded		11,509		13,677		-		14,949		16,961		-
With an allowance recorded:
Commercial		9,634		9,634		4,777		9,764		9,764		4,814
Commercial real estate		2,784		2,787		214		1,790		1,792		171
Total with an allowance recorded		12,418		12,421		4,991		11,554		11,556		4,985
Total	$	23,927	$	26,098	$	4,991	$	26,503	$	28,517	$	4,985

Impaired loans include troubled debt restructured loans. Impaired loans at March 31, 2018, included $9,550 thousand of restructured loans, $4,110 thousand of which were on nonaccrual status. Impaired loans include troubled debt restructured loans. Impaired loans at December 31, 2017, included $12,081 thousand of restructured loans, $4,285 thousand of which were on nonaccrual status.

	Impaired Loans
	For the Three Months Ended March 31,
	2018				2017
	Average		Recognized		Average		Recognized
	Recorded		Interest		Recorded		Interest
	Investment		Income		Investment		Income
	(In thousands)
Commercial	$	10,897	$	175	$	11,292	$	118
Commercial real estate		13,755		215		14,500		237
Construction		-		-		-		-
Residential real estate		207		4		748		4
Consumer installment and other		357		3		543		7
Total	$	25,216	$	397	$	27,083	$	366

The following tables provide information on troubled debt restructurings:

	Troubled Debt Restructurings
	At March 31, 2018
							Period-End
							Individual
	Number of		Pre-Modification		Period-End		Impairment
	Contracts		Carrying Value		Carrying Value		Allowance
	($ in thousands)
Commercial		7	$	2,393	$	1,043	$	39
Commercial real estate		9		9,537		8,301		-
Residential real estate		1		241		206		-
Total		17	$	12,171	$	9,550	$	39

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- 19 -

	Troubled Debt Restructurings
	At December 31, 2017
							Period-End
							Individual
	Number of		Pre-Modification		Period-End		Impairment
	Contracts		Carrying Value		Carrying Value		Allowance
	($ in thousands)
Commercial		7	$	2,393	$	1,085	$	43
Commercial real estate		10		11,528		10,788		-
Residential real estate		1		241		208		-
Total		18	$	14,162	$	12,081	$	43

During the three months ended March 31, 2018, the Company did not modify any loans that were considered troubled debt restructurings. During the three months ended March 31, 2017, the Company modified two loans with a carrying value of $273 thousand that were considered troubled debt restructurings. The two concessions granted in the three months ended March 31, 2017 consisted of modifications of payment terms to extend the maturity date to allow for deferred principal repayment and under-market terms. There were no chargeoffs related to troubled debt restructurings made during the three months ended March 31, 2018 and March 31, 2017. During the three months ended March 31, 2018 and 2017, no troubled debt restructured loans defaulted within 12 months of the modification date. A troubled debt restructuring is considered to be in default when payments are ninety days or more past due.

There were no loans restricted due to collateral requirements at March 31, 2018 and December 31, 2017.

There were no loans held for sale at March 31, 2018 and December 31, 2017.

At March 31, 2018 and December 31, 2017, the Company held total other real estate owned (OREO) of $1,376 thousand net of reserve of $1,905 thousand and $1,426 thousand net of reserve of $1,905 thousand, respectively, of which $-0-  thousand was foreclosed residential real estate properties or covered OREO at both dates, respectively. The amount of consumer mortgage loans outstanding secured by residential real estate properties for which formal foreclosure proceedings were in process was $196 thousand at March 31, 2018 and December 31, 2017.

Note 5: Concentration of Credit Risk

Under the California Financial Code, credit extended to any one person owing to a commercial bank at any one time shall not exceed the following limitations: (a) unsecured loans shall not exceed 15 percent of the sum of the shareholders' equity, allowance for loan losses, capital notes, and debentures of the bank, or (b) secured and unsecured loans in all shall not exceed 25 percent of the sum of the shareholders' equity, allowance for loan losses, capital notes, and debentures of the bank. At March 31, 2018, Westamerica Bank did not have credit extended to any one entity exceeding these limits. At March 31, 2018, Westamerica Bank had 36 lending relationships each with aggregate amounts exceeding $5 million. The Company has significant credit arrangements that are secured by real estate collateral. In addition to real estate loans outstanding as disclosed in Note 4, the Company had loan commitments related to real estate loans of $48,623 thousand and $53,874 thousand at March 31, 2018 and December 31, 2017, respectively. The Company requires collateral on all real estate loans with loan-to-value ratios at origination generally no greater than 75% on commercial real estate loans and no greater than 80% on residential real estate loans. At March 31, 2018, Westamerica Bank held corporate bonds in 72 issuing entities that exceeded $5 million for each issuer.

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Note 6: Other Assets

Other assets consisted of the following:

	At March 31,		At December 31,
	2018		2017
	(In thousands)
Equity securities without readily determinable fair values:
Federal Reserve Bank stock (1)	$	14,069	$	14,069
Other investments		158		158
Total equity securities without readily determinable fair values		14,227		14,227
Life insurance cash surrender value		54,742		54,101
Net deferred tax asset		42,842		33,112
Limited partnership investments		9,519		10,119
Interest receivable		22,538		23,557
Prepaid assets		4,532		4,906
Other assets		11,386		18,428
Total other assets	$	159,786	$	158,450

⁽¹⁾ A bank applying for membership in the Federal Reserve System is required to subscribe to stock in the Federal Reserve Bank (FRB) in its district in a sum equal to six percent of the bank’s paid-up capital stock and surplus. One-half of the amount of the bank's subscription shall be paid to the FRB and the remaining half will be subject to call when deemed necessary by the Board of Governors of the Federal Reserve System.

The Company invests in flow-through limited liability entities that manage or invest in affordable housing projects that qualify for low-income housing tax credits. At March 31, 2018, this investment totaled $9,519 thousand and $2,299  thousand of this amount represents outstanding equity capital commitments that are included in other liabilities. At December 31, 2017, this investment totaled $10,119 thousand and $2,299  thousand of this amount represented outstanding equity capital commitments. At March 31, 2018, the $2,299 thousand of outstanding equity capital commitments are expected to be paid as follows, $722 thousand in 2020, $131 thousand in 2023, $90 thousand in 2024 and $1,356 thousand in 2025 or thereafter.

The amounts recognized in net income for these investments include:

	For the Three Months Ended
	March 31,
	2018		2017
	(In thousands)
Investment loss included in pre-tax income	$	600	$	450
Tax credits recognized in provision for income taxes		336		463

Note 7: Goodwill and Identifiable Intangible Assets

The Company has recorded goodwill and other identifiable intangibles associated with purchase business combinations. Goodwill is not amortized, but is evaluated for impairment at least annually. The Company did not recognize impairment during the three months ended March 31, 2018 and year ended December 31, 2017. Identifiable intangibles are amortized to their estimated residual values over their expected useful lives. Such lives and residual values are also periodically reassessed to determine if any amortization period adjustments are indicated. During the three months ended March 31, 2018 and year ended December 31, 2017 no such adjustments were recorded.

The carrying values of goodwill were:

	At March 31, 2018		At December 31, 2017
	(In thousands)
Goodwill	$	121,673	$	121,673

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The gross carrying amount of identifiable intangible assets and accumulated amortization was:

	At March 31,					At December 31,
	2018					2017
	Gross					Gross
	Carrying		Accumulated			Carrying		Accumulated
	Amount		Amortization			Amount		Amortization
	(In thousands)
Core Deposit Intangibles	$	56,808	$	(53,528	)	$	56,808	$	(52,987	)
Merchant Draft Processing Intangible		10,300		(10,300	)		10,300		(10,271	)
Total Identifiable Intangible Assets	$	67,108	$	(63,828	)	$	67,108	$	(63,258	)

As of March 31, 2018, the current period and estimated future amortization expense for identifiable intangible assets was:

			Merchant
	Core		Draft
	Deposit		Processing
	Intangibles		Intangible		Total
	(In thousands)
For the Three Months ended March 31, 2018 (actual)	$	541	$	29	$	570
Estimate for the remainder of year ending December 31, 2018		1,351		-		1,351
Estimate for year ending December 31, 2019		538		-		538
2020		287		-		287
2021		269		-		269
2022		252		-		252
2023		236		-		236

Note 8: Deposits and Borrowed Funds

The following table provides additional detail regarding deposits.

	Deposits
	At March 31,		At December 31,
	2018		2017
	(In thousands)
Noninterest-bearing	$	2,179,157	$	2,197,526
Interest-bearing:
Transaction		924,081		904,245
Savings		1,540,192		1,494,024
Time deposits less than $100 thousand		114,301		117,848
Time deposits $100 thousand through $250 thousand		74,436		76,578
Time deposits more than $250 thousand		35,700		37,392
Total deposits	$	4,867,867	$	4,827,613

Demand deposit overdrafts of $788  thousand and $2,786  thousand were included as loan balances at March 31, 2018 and December 31, 2017, respectively. Interest expense for aggregate time deposits with individual account balances in excess of $100 thousand was $97 thousand in the three months ended March 31, 2018 and $106 thousand in the three months ended March 31, 2017.

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The following table provides additional detail regarding short-term borrowed funds.

	Repurchase Agreements (Sweep) Accounted for as Secured Borrowings
	Remaining Contractual Maturity of the Agreements
	Overnight and Continuous
	At March 31, 2018		At December 31, 2017
Repurchase agreements:	(In thousands)
Collateral securing borrowings:
Securities of U.S. Government sponsored entities	$	73,165	$	74,173
Agency residential MBS		64,266		58,251
Corporate securities		104,210		105,113
Total collateral carrying value	$	241,641	$	237,537
Total short-term borrowed funds	$	65,356	$	58,471

Note 9: Fair Value Measurements

The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. Equity securities and available for sale debt securities are recorded at fair value on a recurring basis. Additionally, from time to time, the Company may be required to record at fair value other assets on a nonrecurring basis, such as other real estate owned, impaired loans, certain loans held for investment, debt securities held to maturity, and other assets. These nonrecurring fair value adjustments typically involve the lower-of-cost or fair-value accounting of individual assets.

In accordance with the Fair Value Measurement and Disclosure topic of the Codification, the Company bases its fair values on the price that would be received to sell an asset or paid to transfer a liability in the principal market or most advantageous market for an asset or liability in an orderly transaction between market participants on the measurement date under current market conditions. A fair value measurement reflects all of the assumptions that market participants would use in pricing the asset or liability, including assumptions about the risk inherent in a particular valuation technique, the effect of a restriction on the sale or use of an asset, and the risk of nonperformance.

The Company groups its assets and liabilities measured at fair value into a three-level hierarchy, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. When the valuation assumptions used to measure the fair value of the asset or liability are categorized within different levels of the fair value hierarchy, the asset or liability is categorized in its entirety within the lowest level of the hierarchy. These levels are:

Level 1 – Valuation is based upon quoted prices for identical instruments traded in active exchange markets, such as the New York Stock Exchange. Level 1 includes U.S. Treasury and equity securities, which are traded by dealers or brokers in active markets. Valuations are obtained from readily available pricing sources for market transactions involving identical assets or liabilities.

Level 2 – Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market. Level 2 includes mutual funds, federal agency securities, mortgage-backed securities, corporate securities, asset-backed securities, and municipal bonds.

Level 3 – Valuation is generated from model-based techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect the Company’s estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of option pricing models, discounted cash flow models and similar techniques.

The Company relies on independent vendor pricing services to measure fair value for equity securities, debt securities available for sale and debt securities held to maturity. The Company employs three pricing services. To validate the pricing of these vendors, the Company compares vendors’ pricing for each of the securities for consistency; significant pricing differences, if any, are evaluated using all available independent quotes with the quote most closely reflecting the market generally used as the fair value estimate. In addition, the Company conducts “other than temporary impairment (OTTI)” analysis on a quarterly basis; debt securities selected for OTTI analysis include all debt securities at a market price below 95 percent of par value. As with any valuation technique used to estimate fair value, changes in underlying assumptions used could significantly affect the results of current and future values. Accordingly, these fair value estimates may not be realized in an actual sale of the securities.

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The Company regularly reviews the valuation techniques and assumptions used by its vendors and determines which valuation techniques are utilized based on observable market inputs for the type of securities being measured. The Company uses the information to determine the placement in the fair value hierarchy as level 1, 2 or 3. When the Company changes its valuation assumptions for measuring financial assets and financial liabilities at fair value, either due to changes in current market conditions or other factors, or reevaluates the valuation techniques and assumptions used by its vendors, it may need to transfer those assets or liabilities to another level in the hierarchy based on the new information. The Company recognizes these transfers at the end of the reporting period that the transfers occur. For the three months ended March 31, 2018 and year ended December 31, 2017, there were no transfers in to or out of levels 1, 2 or 3.

Assets Recorded at Fair Value on a Recurring Basis

The tables below present assets measured at fair value on a recurring basis on the dates indicated.

	At March 31, 2018
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(In thousands)
Equity securities
Mutual funds	$	1,764	$	-	$	1,764	$	-
Total equity securities		1,764		-		1,764		-
Debt securities available for sale
Securities of U.S. Government sponsored entities		117,947		-		117,947		-
Agency residential MBS		847,640		-		847,640		-
Non-agency residential MBS		139		-		139		-
Agency commercial MBS		2,190		-		2,190		-
Securities of U.S. Government entities		1,520		-		1,520		-
Obligations of states and political subdivisions		180,635		-		180,635		-
Corporate securities		1,201,899		-		1,201,899		-
Total debt securities available for sale		2,351,970		-		2,351,970		-
Total	$	2,353,734	$	-	$	2,353,734	$	-

	At December 31, 2017
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(In thousands)
Equity securities
Mutual funds	$	1,800	$	-	$	1,800	$	-
Total equity securities		1,800		-		1,800		-
Debt securities available for sale
Securities of U.S. Government sponsored entities		119,319		-		119,319		-
Agency residential MBS		767,706		-		767,706		-
Non-agency residential MBS		154		-		154		-
Agency commercial MBS		2,219		-		2,219		-
Securities of U.S. Government entities		1,590		-		1,590		-
Obligations of states and political subdivisions		185,221		-		185,221		-
Corporate securities		1,115,498		-		1,115,498		-
Total debt securities available for sale		2,191,707		-		2,191,707		-
Total	$	2,193,507	$	-	$	2,193,507	$	-

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Assets Recorded at Fair Value on a Nonrecurring Basis

The Company may be required, from time to time, to measure certain assets at fair value on a nonrecurring basis in accordance with GAAP. These adjustments to fair value usually result from application of lower of cost or fair value accounting of individual assets. For assets measured at fair value on a nonrecurring basis that were recorded in the balance sheet at March 31, 2018 and December 31, 2017, the following tables provide the level of valuation assumptions used to determine each adjustment and the carrying value of the related assets at period end.

									For the
									Three Months Ended
	At March 31, 2018								March 31, 2018
	Carrying Value		Level 1		Level 2		Level 3		Total Losses
	(In thousands)
Other real estate owned	$	1,376	$	-	$	-	$	1,376	$	-
Impaired loans:
Commercial		4,857		-		-		4,857		-
Commercial real estate		6,680		-		-		6,680		-
Total assets measured at fair value on a nonrecurring basis	$	12,913	$	-	$	-	$	12,913	$	-

									For the
									Year Ended
	At December 31, 2017								December 31, 2017
	Carrying Value		Level 1		Level 2		Level 3		Total Losses
	(In thousands)
Other real estate owned	$	1,426	$	-	$	-	$	1,426	$	(219	)
Impaired loans:
Commercial		4,950		-		-		4,950		-
Commercial real estate		5,904		-		-		5,904		-
Total assets measured at fair value on a nonrecurring basis	$	12,280	$	-	$	-	$	12,280	$	(219	)

Level 3 – Valuation is based upon present value of expected future cash flows, independent market prices, estimated liquidation values of loan collateral or appraised value of the collateral as determined by third-party independent appraisers, less 10% for selling costs, generally. Level 3 includes other real estate owned that has been measured at fair value upon transfer to foreclosed assets and impaired loans collateralized by real property and other business asset collateral where a specific reserve has been established or a chargeoff has been recorded. Losses on other real estate owned represent losses recognized in earnings during the period subsequent to its initial classification as foreclosed assets. The unobservable inputs and qualitative information about the unobservable inputs are not presented as the inputs were not developed by the Company.

Disclosures about Fair Value of Financial Instruments

The following section describes the valuation methodologies used by the Company for estimating fair value of financial instruments not recorded at fair value in the balance sheet. The Company implemented the provisions of ASU 2016-01, Financial Instruments – Overall: Recognition and Measurement of Financial Assets and Financial Liabilities, effective January 1, 2018. The provisions require the Company to use the “exit price notion” when measuring the fair value of financial instruments for disclosure purposes.

Cash and Due from Banks Cash and due from banks represent U.S. dollar denominated coin and currency, deposits at the Federal Reserve Bank and correspondent banks, and amounts being settled with other banks to complete the processing of customers’ daily transactions. Collectively, the Federal Reserve Bank and financial institutions operate in a market in which cash and due from banks transactions are processed continuously in significant daily volumes honoring the face value of the U.S. dollar.

Debt Securities Held to Maturity The fair values of debt securities were estimated using quoted prices as described above for Level 2 valuation.

Loans Loans are valued using the exit price notion. The Company uses a net present value of cash flows methodology that seeks to incorporate interest rate, credit, liquidity and prepayment risks in the fair market value estimation. Inputs to calculation include market rates for similarly offered products, market interest rate projections, credit spreads and prepayment assumptions.

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Prior to adoption of ASU 2016-01, loans were separated into two groups for valuation. Variable rate loans, except for those described below, which reprice frequently with changes in market rates were valued using historical cost. Fixed rate loans and variable rate loans that have reached their minimum contractual interest rates were valued by discounting the future cash flows expected to be received from the loans using current interest rates charged on loans with similar characteristics. Additionally, the allowance for loan losses of $23,009 thousand at December 31, 2017 was applied against the estimated fair values to recognize estimated future defaults of contractual cash flows.

Deposit Liabilities Deposits with no stated maturity such as checking accounts, savings accounts and money market accounts can be readily converted to cash or used to settle transactions at face value through the broad financial system operated by the Federal Reserve Banks and financial institutions. The fair value of deposits with no stated maturity is equal to the amount payable on demand. The fair values of time deposits were estimated by using net present value of cash flows methodology that seeks to incorporate interest rate, credit, liquidity and prepayment risks in the fair market value estimation. Inputs to calculation include market rates for similarly offered products, market interest rate projections, credit spreads and prepayment assumptions. The resulting cash flows are compared against alternative funding sources.

Prior to adoption of ASU 2016-01, the fair value of time deposits were estimated by discounting estimated future contractual cash flows using current market rates for financial instruments with similar characteristics.

Short-Term Borrowed Funds The carrying amount of securities sold under agreement to repurchase and other short-term borrowed funds approximate fair value due to the relatively short period of time between their origination and their expected realization.

The tables below are a summary of fair value estimates for financial instruments and the level of the fair value hierarchy within which the fair value measurements are categorized, excluding financial instruments recorded at fair value on a recurring basis. The values assigned do not necessarily represent amounts which ultimately may be realized for assets or paid to settle liabilities. In addition, these values do not give effect to adjustments to fair value which may occur when financial instruments are sold or settled in larger quantities. The carrying amounts in the following tables are recorded in the balance sheet under the indicated captions.

The Company has not included assets and liabilities that are not financial instruments, such as goodwill, long-term relationships with deposit, merchant processing and trust customers, other purchased intangibles, premises and equipment, deferred taxes and other assets and liabilities. The total estimated fair values do not represent, and should not be construed to represent, the underlying value of the Company.

	At March 31, 2018
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2 )		Significant Unobservable Inputs (Level 3 )
Financial Assets:	(In thousands)
Cash and due from banks	$	555,607	$	555,607	$	555,607	$	-	$	-
Debt securities held to maturity		1,114,287		1,098,895		-		1,098,895		-
Loans		1,205,503		1,244,670		-		-		1,244,670
Financial Liabilities:
Deposits	$	4,867,867	$	4,864,792	$	-	$	4,643,430	$	221,362
Short-term borrowed funds		65,356		65,356		-		65,356		-

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	At December 31, 2017
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2 )		Significant Unobservable Inputs (Level 3 )
Financial Assets:	(In thousands)
Cash and due from banks	$	575,002	$	575,002	$	575,002	$	-	$	-
Debt securities held to maturity		1,158,864		1,155,342		-		1,155,342		-
Loans		1,264,973		1,257,811		-		-		1,257,811
Financial Liabilities:
Deposits	$	4,827,613	$	4,824,586	$	-	$	4,595,795	$	228,791
Short-term borrowed funds		58,471		58,471		-		58,471		-

The majority of the Company’s standby letters of credit and other commitments to extend credit carry current market interest rates if converted to loans. No premium or discount was ascribed to these commitments because virtually all funding would be at current market rates.

Note 10: Commitments and Contingent Liabilities

Loan commitments are agreements to lend to a customer provided there is no violation of any condition established in the agreement. Commitments generally have fixed expiration dates or other termination clauses. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future funding requirements. Loan commitments are subject to the Company’s normal credit policies and collateral requirements. Unfunded loan commitments were $282,428 thousand and $272,646 thousand at March 31, 2018 and December 31, 2017, respectively. Standby letters of credit commit the Company to make payments on behalf of customers when certain specified future events occur. Standby letters of credit are primarily issued to support customers’ short-term financing requirements and must meet the Company’s normal credit policies and collateral requirements. Financial and performance standby letters of credit outstanding totaled $3,849 thousand and $19,263 thousand at March 31, 2018 and December 31, 2017, respectively. The Company had no commitments outstanding for commercial and similar letters of credit at March 31, 2018 and December 31, 2017. The Company had a reserve for unfunded commitments of $2,308 thousand at March 31, 2018 and $2,308 thousand at December 31, 2017, included in other liabilities.

Due to the nature of its business, the Company is subject to various threatened or filed legal cases. Based on the advice of legal counsel, the Company does not expect such cases will have a material, adverse effect on its financial position or results of operations. Legal liabilities are accrued when obligations become probable and the amount can be reasonably estimated.

The Company has determined that it will be obligated to provide refunds of revenue recognized in prior years to some customers. The Company estimates the probable amount of these obligations will be $5,542 thousand and has accrued a liability for such amount; the estimated liability is subject to revision.

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Note 11: Earnings Per Common Share

The table below shows earnings per common share and diluted earnings per common share. Basic earnings per common share are computed by dividing net income by the average number of common shares outstanding during the period. Diluted earnings per common share are computed by dividing net income by the average number of common shares outstanding during the period plus the impact of common stock equivalents.

	For the Three Months Ended
	March 31,
	2018		2017
	(In thousands, except per share data)
Net income (numerator)	$	17,506	$	15,049
Basic earnings per common share
Weighted average number of common shares outstanding - basic (denominator)		26,532		26,171
Basic earnings per common share	$	0.66	$	0.58
Diluted earnings per common share
Weighted average number of common shares outstanding - basic		26,532		26,171
Add common stock equivalents for options		133		158
Weighted average number of common shares outstanding - diluted (denominator)		26,665		26,329
Diluted earnings per common share	$	0.66	$	0.57

For the three months ended March 31, 2018 and 2017, options to purchase 491 thousand and 299 thousand shares of common stock, respectively, were outstanding but not included in the computation of diluted net income per share because the option exercise price exceeded the fair value of the stock such that their inclusion would have had an anti-dilutive effect.

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Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

WESTAMERICA BANCORPORATION

FINANCIAL SUMMARY

	For the Three Months Ended
	March 31,						December 31,
	2018			2017			2017
	(In thousands, except per share data)
Net Interest and Fee Income (FTE)(1)	$	35,467		$	36,030		$	36,644
Provision for Loan Losses		-			-			-
Noninterest Income:
Securities (Losses) Gains		(36	)		-			7,955
Other Noninterest Income		11,991			11,657			12,345
Total Noninterest Income		11,955			11,657			20,300
Noninterest Expense		24,214			24,615			30,167
Income Before Income Taxes (FTE)(1)		23,208			23,072			26,777
Provision for Income Taxes (FTE)(1)		5,702			8,023			22,617
Net Income	$	17,506		$	15,049		$	4,160
Average Common Shares Outstanding		26,532			26,171			26,384
Average Diluted Common Shares Outstanding		26,665			26,329			26,538
Common Shares Outstanding at Period End		26,591			26,283			26,425
Per Common Share:
Basic Earnings	$	0.66		$	0.58		$	0.16
Diluted Earnings		0.66			0.57			0.16
Book Value Per Common Share	$	21.89		$	22.25		$	22.34
Financial Ratios:
Return On Assets		1.28	%		1.13	%		0.30	%
Return On Common Equity		11.57	%		10.48	%		2.70	%
Net Interest Margin (FTE)(1)		3.02	%		3.14	%		3.12	%
Net Loan (Recoveries) Losses to Average Loans		(0.02	)%		0.31	%		0.19	%
Efficiency Ratio(2)		51.1	%		51.6	%		53.0	%
Average Balances:
Assets	$	5,564,705		$	5,395,783		$	5,534,700
Earning Assets		4,723,213			4,620,001			4,682,897
Loans		1,243,750			1,355,250			1,285,748
Deposits		4,828,352			4,692,746			4,811,035
Shareholders' Equity		613,860			582,384			610,200
Period End Balances:
Assets	$	5,551,036		$	5,395,947		$	5,513,046
Earning Assets		4,696,605			4,542,813			4,640,353
Loans		1,228,584			1,351,090			1,287,982
Deposits		4,867,867			4,697,973			4,827,613
Shareholders' Equity		582,083			584,888			590,239
Capital Ratios at Period End:
Total Risk Based Capital		16.53	%		16.91	%		16.17	%
Tangible Equity to Tangible Assets		8.42	%		8.68	%		8.63	%
Dividends Paid Per Common Share	$	0.40		$	0.39		$	0.40
Common Dividend Payout Ratio		61	%		68	%		250	%

The above financial summary has been derived from the Company's unaudited consolidated financial statements. This information should be read in conjunction with those statements, notes and the other information included elsewhere herein. Percentages under the heading "Financial Ratios" are annualized with the exception of the efficiency ratio.

⁽¹⁾ Yields on securities and certain loans have been adjusted upward to an FTE basis in order to reflect the effect of income which is exempt from federal income taxation at the current statutory tax rate.

⁽²⁾ The efficiency ratio is defined as noninterest expense divided by total revenue (net interest income on an FTE basis and noninterest income).

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Financial Overview

Westamerica Bancorporation and subsidiaries’ (the Company”) principal source of revenue is net interest and loan fee income, which represents interest and fees earned on loans and investment securities (“earning assets”) reduced by interest paid on deposits and other borrowings (“interest-bearing liabilities”). Market interest rates declined considerably following the recession of 2008 and 2009. Interest rates remained historically low through 2016 as the Federal Open Market Committee’s (“FOMC”) monetary policy was highly accommodative. During this period, Management avoided originating long-dated, low-yielding loans given the potential impact of such assets on forward earning potential; as a result, loans declined and investment securities increased. The changing composition of the earning assets and low market interest rates has pressured the net interest margin to lower levels. The FOMC’s increases in the federal funds rate occurred between December 2016 and March 2018, although longer-term rates have not increased by a similar magnitude. Net interest income was $34.0 million for the first quarter 2018, compared with $33.7 million for the fourth quarter 2017 and $32.8 million for the first quarter 2017. The increase in net interest income is due to higher asset yields and higher levels of average earning assets.

The funding source of the Company’s earning assets is primarily customer deposits. The Company’s long-term strategy includes maximizing checking and savings deposits as these types of deposits are lower-cost and less sensitive to changes in interest rates compared to time deposits. The first quarter 2018 average volume of checking and savings deposits was 95 percent of average total deposits.

Credit quality remained strong with nonperforming assets totaling $8 million at March 31, 2018 and net loan loss recoveries of $72 thousand for the first quarter 2018. The Company did not recognize a provision for loan losses in the first quarter 2018.

The Company presents its net interest margin and net interest income on an FTE basis using the current statutory federal tax rate. Management believes the FTE basis is valuable to the reader because the Company’s loan and investment securities portfolios contain a relatively large portion of municipal loans and securities that are federally tax exempt. The Company’s tax exempt loans and securities composition may not be similar to that of other banks, therefore in order to reflect the impact of the federally tax exempt loans and securities on the net interest margin and net interest income for comparability with other banks, the Company presents its net interest margin and net interest income on an FTE basis. Yields on tax-exempt securities and loans have been adjusted upward to reflect the effect of income exempt from federal income taxation at the federal statutory tax rate of 35% for 2017. Due to the Tax Cuts and Jobs Act of 2017 (“Act”), the federal tax rate became 21% for 2018; as such, the upward adjustment to reflect the effect of income exempt from federal taxation is lower in 2018.

The Company’s significant accounting policies (see Note 1, “Summary of Significant Accounting Policies,” to Financial Statements in the Company’s 2017 Form 10-K) are fundamental to understanding the Company’s results of operations and financial condition.

The Company reported first quarter 2018 net income of $17.5 million or $0.66 diluted earnings per common share. First quarter 2018 results compare to net income of $15.0 million or $0.57 diluted earnings per common share for the first quarter 2017 and $4.2 million or $0.16 diluted earnings per common share for the fourth quarter 2017. Fourth quarter 2017 results include adjustments to asset values triggered by enactment of the Act, recognition of a loss contingency, and securities gains which collectively reduced EPS $0.42.

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Net Income

Following is a summary of the components of net income for the periods indicated:

	For the Three Months Ended
	March 31,						December 31,
	2018			2017			2017
	(In thousands, except per share data)
Net interest and loan fee income	$	34,048		$	32,844		$	33,733
FTE adjustment		1,419			3,186			2,911
Net interest and loan fee income (FTE)		35,467			36,030			36,644
Provision for loan losses		-			-			-
Noninterest income		11,955			11,657			20,300
Noninterest expense		24,214			24,615			30,167
Income before taxes (FTE)		23,208			23,072			26,777
Income tax provision (FTE)		5,702			8,023			22,617
Net income	$	17,506		$	15,049		$	4,160
Average diluted common shares		26,665			26,329			26,538
Diluted earnings per common share	$	0.66		$	0.57		$	0.16
Average total assets	$	5,564,705		$	5,395,783		$	5,534,700
Net income to average total assets (annualized)		1.28	%		1.13	%		0.30	%
Net income to average common shareholders' equity (annualized)		11.57	%		10.48	%		2.70	%

Net income for the first quarter of 2018 was $2.5 million more than the same quarter of 2017. Net interest and loan fee income increased $1.2 million in the first quarter 2018 compared with first quarter 2017 mostly attributable to higher average balances of investments and higher yield on earning assets as market interest rates rose. The increase was offset by lower average balances of loans. Net interest and loan fee income (FTE) in the first quarter 2018 included a lower FTE adjustment than in the first quarter 2017 due to the reduced federal corporate tax as a result of enactment of the Act. The provision for loan losses remained zero, reflecting Management's evaluation of losses inherent in the loan portfolio. The book tax provision for the first quarter 2018 was $4.3 million compared with $4.8 million for the first quarter 2017, representing effective tax rates of 19.7% and 24.3%, respectively. The book tax provisions for the first quarter 2018 and the first quarter 2017 include tax benefits of $451 thousand and $671 thousand, respectively, for tax deductions from the exercise of employee stock options which exceed related compensation expenses recognized in the financial statements; these benefits reduced the effective tax rate by 2.0% and 3.4%, respectively.

Comparing the first quarter of 2018 with the fourth quarter of 2017, net income increased $13.3 million. Net interest and loan fee income increased $315 thousand in the first quarter 2018 compared with fourth quarter 2017 mostly attributable to higher average balances of investments and higher yield on earning assets as market interest rates rose. The increase was offset by lower average balances of loans. Net interest and loan fee income (FTE) in the first quarter 2018 included a lower FTE adjustment than in the fourth quarter 2017 due to the reduced federal corporate tax as a result of enactment of the Act. The provision for loan losses remained zero, reflecting Management's evaluation of losses inherent in the loan portfolio. Noninterest income in the first quarter 2018 was $8.3 million lower than in the fourth quarter 2017 due to gains on sale of securities of $8.0 million in the fourth quarter 2017. Noninterest expense decreased $6.0 million primarily because the fourth quarter 2017 included a $5.5 million loss contingency accrual and a $625 thousand impairment charge on tax credit investments. The book tax provision for the first quarter 2018 was $4.3 million compared with $19.7 million for the fourth quarter 2017, representing effective tax rates of 19.7% and 82.6%, respectively. The book tax provision for the fourth quarter 2017 includes a $12.3 million charge resulting from re-measurement of the Company’s net deferred tax asset triggered by enactment of the Act.

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Net Interest and Loan Fee Income (FTE)

Following is a summary of the components of net interest and loan fee income (FTE) for the periods indicated:

	For the Three Months Ended
	March 31,						December 31,
	2018			2017			2017
	(In thousands)
Interest and loan fee income	$	34,507		$	33,324		$	34,204
Interest expense		459			480			471
Net interest and loan fee income		34,048			32,844			33,733
FTE adjustment		1,419			3,186			2,911
Net interest and loan fee income (FTE)	$	35,467		$	36,030		$	36,644
Average earning assets	$	4,723,213		$	4,620,001		$	4,682,897
Net interest margin (FTE) (annualized)		3.02	%		3.14	%		3.12	%

Net interest and loan fee income increased $1.2 million in the first quarter 2018 compared with the first quarter 2017, mainly due to higher average balances of investments (up $215 million) and higher yield on earning assets (up 0.04%), partially offset by lower average balances of loans (down $111 million) The FTE adjustment was lower in the first quarter 2018 compared with the first quarter 2017 due to the reduced federal corporate tax rate as a result of enactment of the Act.

Comparing the first quarter 2018 with the fourth quarter 2017, net interest and loan fee income increased $315 thousand due to higher average balances of investments (up $82 million) and higher yield on interest earning assets (up 0.03%), offset by lower average balances of loans (down $42 million) The FTE adjustment was lower in the first quarter 2018 compared with the fourth quarter 2017 due to the reduced federal corporate tax rate as a result of enactment of the Act.

Yields on interest-earning assets increased in the first quarter 2018 as market interest rates rose. The annualized net interest margin (FTE) was 3.02% in the first quarter 2018 compared with 3.14% in the first quarter 2017 and 3.12% in the fourth quarter 2017. The first quarter net interest margin (FTE) was lower than in the first quarter 2017 and the fourth quarter 2017 due to the reduced federal corporate tax rate as a result of enactment of the Act.

The Company’s funding costs were 0.04% in the first quarter 2018, unchanged from the first quarter 2017. Average balances of time deposits declined $25 million from the first quarter 2017 to first quarter 2018 while lower-cost checking and savings deposits grew 4% in the same period. Average balances of checking and saving deposits accounted for 95.3% of average total deposits in the first quarter 2018 compared with 94.6% in the first quarter 2017 and 95.1% in the fourth quarter 2017; checking and savings deposits are less sensitive to rising interest rates than time deposits.

Net Interest Margin (FTE)

The following summarizes the components of the Company's net interest margin for the periods indicated (percentages are annualized.):

	For the Three Months Ended
	March 31,						December 31,
	2018			2017			2017
Yield on earning assets		2.94	%		2.90	%		2.91	%
Impact of FTE adjustment		0.12	%		0.28	%		0.25	%
Yield on earning assets (FTE)		3.06	%		3.18	%		3.16	%
Rate paid on interest-bearing liabilities		0.07	%		0.07	%		0.07	%
Net interest spread (FTE)		2.99	%		3.11	%		3.09	%
Impact of noninterest-bearing funds		0.03	%		0.03	%		0.03	%
Net interest margin (FTE)		3.02	%		3.14	%		3.12	%

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The FOMC increased the federal funds rate between December 2016 and March 2018. In the first quarter 2018 yield on earning assets increased with rising market interest rates. The net interest spread and net interest margin stated on an FTE basis are lower in the first quarter 2018 compared with the first quarter 2017 and the fourth quarter 2017 because the FTE adjustment to reflect the effect of income exempt from federal taxation is lower in 2018 compared with 2017. Rates on interest-bearing liabilities were kept low by reducing the volume of higher-cost time deposits and increasing balances of checking and savings deposits, which earn relatively low interest rates and are less volatile than time deposits during periods of rising market interest rates.

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Summary of Average Balances, Yields/Rates and Interest Differential

The following tables present information regarding the consolidated average assets, liabilities and shareholders’ equity, the amounts of interest income earned from average interest earning assets and the resulting yields, and the amounts of interest expense incurred on average interest-bearing liabilities and the resulting rates. Average loan balances include nonperforming loans. Interest income includes reversal of previously accrued interest on loans placed on non-accrual status during the period and proceeds from loans on nonaccrual status only to the extent cash payments have been received and applied as interest income and accretion of purchased loan discounts. Yields, rates and interest margins are annualized. Yields on tax-exempt securities and loans have been adjusted upward to reflect the effect of income exempt from federal income taxation at the federal statutory tax rate of 35 percent for 2017. Due to the Tax Cuts and Jobs Act of 2017, the federal tax rate became 21 percent for 2018; as such, the upward adjustment to reflect the effect of income exempt from federal taxation is lower in 2018.

Distribution of Assets, Liabilities & Shareholders’ Equity and Yields, Rates & Interest Margin

	For the Three Months Ended March 31, 2018
			Interest
	Average		Income/		Yields/
	Balance		Expense		Rates
	($ in thousands)
Assets
Investment securities:
Taxable	$	2,709,643	$	14,935		2.20	%
Tax-exempt (1)		769,820		6,169		3.21	%
Total investments (1)		3,479,463		21,104		2.43	%
Loans:
Taxable		1,184,715		14,223		4.87	%
Tax-exempt (1)		59,035		599		4.11	%
Total loans (1)		1,243,750		14,822		4.83	%
Total Interest-earning assets (1)		4,723,213		35,926		3.06	%
Other assets		841,492
Total assets	$	5,564,705
Liabilities and shareholders' equity
Noninterest-bearing demand	$	2,156,626	$	-		-	%
Savings and interest-bearing transaction		2,443,561		282		0.05	%
Time less than $100,000		125,020		71		0.23	%
Time $100,000 or more		103,145		97		0.38	%
Total interest-bearing deposits		2,671,726		450		0.07	%
Short-term borrowed funds		62,501		9		0.06	%
Total interest-bearing liabilities		2,734,227		459		0.07	%
Other liabilities		59,992
Shareholders' equity		613,860
Total liabilities and shareholders' equity	$	5,564,705
Net interest spread (1) (2)						2.99	%
Net interest and fee income and interest margin (1) (3)			$	35,467		3.02	%

⁽¹⁾ Amounts calculated on an FTE basis using the current statutory federal tax rate.

⁽²⁾ Net interest spread represents the average yield earned on interest-earning assets less the average rate incurred on interest-bearing liabilities.

⁽³⁾ Net interest margin is computed by calculating the difference between interest income and expense, divided by the average balance of interest-earning assets. The net interest margin is greater than the net interest spread due to the benefit of noninterest-bearing demand deposits.

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Distribution of Assets, Liabilities & Shareholders’ Equity and Yields, Rates & Interest Margin

	For the Three Months Ended March 31, 2017
			Interest
	Average		Income/		Yields/
	Balance		Expense		Rates
	($ in thousands)
Assets
Investment securities:
Taxable	$	2,433,669	$	12,147		2.00	%
Tax-exempt (1)		831,082		8,294		3.99	%
Total investments (1)		3,264,751		20,441		2.50	%
Loans:
Taxable		1,290,093		15,243		4.79	%
Tax-exempt (1)		65,157		826		5.14	%
Total loans (1)		1,355,250		16,069		4.81	%
Total Interest-earning assets (1)		4,620,001		36,510		3.18	%
Other assets		775,782
Total assets	$	5,395,783
Liabilities and shareholders' equity
Noninterest-bearing demand	$	2,056,858	$	-		-	%
Savings and interest-bearing transaction		2,382,348		280		0.05	%
Time less than $100,000		141,400		83		0.24	%
Time $100,000 or more		112,140		106		0.38	%
Total interest-bearing deposits		2,635,888		469		0.07	%
Short-term borrowed funds		68,584		11		0.06	%
Total interest-bearing liabilities		2,704,472		480		0.07	%
Other liabilities		52,069
Shareholders' equity		582,384
Total liabilities and shareholders' equity	$	5,395,783
Net interest spread (1) (2)						3.11	%
Net interest and fee income and interest margin (1) (3)			$	36,030		3.14	%

⁽¹⁾ Amounts calculated on an FTE basis using the current statutory federal tax rate.

⁽²⁾ Net interest spread represents the average yield earned on interest-earning assets less the average rate incurred on interest-bearing liabilities.

⁽³⁾ Net interest margin is computed by calculating the difference between interest income and expense, divided by the average balance of interest-earning assets. The net interest margin is greater than the net interest spread due to the benefit of noninterest-bearing demand deposits.

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Distribution of Assets, Liabilities & Shareholders’ Equity and Yields, Rates & Interest Margin

	For the Three Months Ended December 31, 2017
			Interest
	Average		Income/		Yields/
	Balance		Expense		Rates
	($ in thousands)
Assets
Investment securities:
Taxable	$	2,612,669	$	13,861		2.12	%
Tax-exempt (1)		784,480		7,583		3.87	%
Total investments (1)		3,397,149		21,444		2.52	%
Loans:
Taxable		1,225,020		14,923		4.83	%
Tax-exempt (1)		60,728		748		4.89	%
Total loans (1)		1,285,748		15,671		4.84	%
Total interest-earning assets (1)		4,682,897		37,115		3.16	%
Other assets		851,803
Total assets	$	5,534,700
Liabilities and shareholders' equity
Deposits:
Noninterest-bearing demand	$	2,172,678	$	-		-	%
Savings and interest-bearing transaction		2,401,694		285		0.05	%
Time less than $100,000		129,917		75		0.23	%
Time $100,000 or more		106,746		101		0.38	%
Total interest-bearing deposits		2,638,357		461		0.07	%
Short-term borrowed funds		62,833		10		0.06	%
Total interest-bearing liabilities		2,701,190		471		0.07	%
Other liabilities		50,632
Shareholders' equity		610,200
Total liabilities and shareholders' equity	$	5,534,700
Net interest spread (1) (2)						3.09	%
Net interest and fee income and interest margin (1) (3)			$	36,644		3.12	%

⁽¹⁾ Amounts calculated on an FTE basis using the current statutory federal tax rate.

⁽²⁾ Net interest spread represents the average yield earned on interest-earning assets less the average rate incurred on interest-bearing liabilities.

⁽³⁾ Net interest margin is computed by calculating the difference between interest income and expense, divided by the average balance of interest-earning assets. The net interest margin is greater than the net interest spread due to the benefit of noninterest-bearing demand deposits.

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Summary of Changes in Interest Income and Expense due to Changes in Average Asset & Liability Balances and Yields Earned & Rates Paid

The following tables set forth a summary of the changes in interest income and interest expense due to changes in average assets and liability balances (volume) and changes in average interest yields/rates for the periods indicated. Changes not solely attributable to volume or yields/rates have been allocated in proportion to the respective volume and yield/rate components.

Summary of Changes in Interest Income and Expense

	For the Three Months Ended March 31, 2018
	Compared with
	For the Three Months Ended March 31, 2017
	Volume			Yield/Rate			Total
	(In thousands)
Increase (decrease) in interest and loan fee income:
Investment securities:
Taxable	$	1,377		$	1,411		$	2,788
Tax-exempt (1)		(611	)		(1,514	)		(2,125	)
Total investments (1)		766			(103	)		663
Loans:
Taxable		(1,245	)		225			(1,020	)
Tax-exempt (1)		(78	)		(149	)		(227	)
Total loans (1)		(1,323	)		76			(1,247	)
Total decrease in interest and loan fee income (1)		(557	)		(27	)		(584	)
Increase (decrease) in interest expense:
Deposits:
Savings and interest-bearing transaction		7			(5	)		2
Time less than $100,000		(10	)		(2	)		(12	)
Time $100,000 or more		(9	)		-			(9	)
Total interest-bearing deposits		(12	)		(7	)		(19	)
Short-term borrowed funds		(1	)		(1	)		(2	)
Total decrease in interest expense		(13	)		(8	)		(21	)
Decrease in net interest and loan fee income (1)	$	(544	)	$	(19	)	$	(563	)

⁽¹⁾ Amounts calculated on an FTE basis using the current statutory federal tax rate.

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Summary of Changes in Interest Income and Expense

	For the Three Months Ended March 31, 2018
	Compared with
	For the Three Months Ended December 31, 2017
	Volume			Yield/Rate			Total
	(In thousands)
Increase (decrease) in interest and loan fee income:
Investment securities:
Taxable	$	515		$	559		$	1,074
Tax-exempt (1)		(142	)		(1,272	)		(1,414	)
Total investments (1)		373			(713	)		(340	)
Loans:
Taxable		(751	)		51			(700	)
Tax-exempt (1)		(23	)		(126	)		(149	)
Total loans (1)		(774	)		(75	)		(849	)
Total decrease in interest and loan fee income (1)		(401	)		(788	)		(1,189	)
(Decrease) increase in interest expense:
Deposits:
Savings and interest-bearing transaction		-			(3	)		(3	)
Time less than $100,000		(4	)		-			(4	)
Time $100,000 or more		(5	)		1			(4	)
Total interest-bearing deposits		(9	)		(2	)		(11	)
Short-term borrowed funds		-			(1	)		(1	)
Total decrease in interest expense		(9	)		(3	)		(12	)
Decrease in net interest and loan fee income (1)	$	(392	)	$	(785	)	$	(1,177	)

⁽¹⁾ Amounts calculated on an FTE basis using the current statutory federal tax rate.

Provision for Loan Losses

The Company manages credit costs by consistently enforcing conservative underwriting and administration procedures and aggressively pursuing collection efforts with debtors experiencing financial difficulties. The provision for loan losses reflects Management's assessment of credit risk in the loan portfolio during each of the periods presented.

The Company provided no provision for loan losses in the first quarter of 2018 and the first and fourth quarters of 2017. Classified loans declined $13.6 million during the period from March 31, 2017 to March 31, 2018. This development was reflected in Management’s evaluation of credit quality, the level of the provision for loan losses, and the adequacy of the allowance for loan losses at March 31, 2018. At March 31, 2018, the Company had $7.1 million in residential real estate secured loans which are indemnified from loss by the FDIC up to eighty percent of principal; the indemnification expires February 6, 2019 For further information regarding credit risk, the FDIC loss-sharing agreements, net credit losses and the allowance for loan losses, see the “Loan Portfolio Credit Risk” and “Allowance for Loan Losses” sections of this Report.

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Noninterest Income

The following table summarizes the components of noninterest income for the periods indicated.

	For the Three Months Ended
	March 31,					December 31,
	2018			2017		2017
	(In thousands)
Service charges on deposit accounts	$	4,752		$	4,923	$	4,756
Merchant processing services		2,420			1,875		2,346
Debit card fees		1,605			1,481		1,569
Trust fees		743			702		739
ATM processing fees		664			575		696
Other service fees		631			650		620
Financial services commissions		114			195		155
Equity securities (losses) gains		(36	)		-		7,955
Other noninterest income		1,062			1,256		1,464
Total	$	11,955		$	11,657	$	20,300

Noninterest income for the first quarter 2018 increased by $298 thousand from the same period in 2017. Merchant processing services fees increased $545 thousand primarily due to successful sales efforts and higher transaction volumes. Debit card fees increased $124 thousand mostly due to increased transaction volumes. Service charges on deposit accounts decreased $171 thousand due to lower fees for overdrafts and checking accounts.

In the first quarter 2018, noninterest income decreased $8.3 million compared with the fourth quarter 2017 primarily because the fourth quarter 2017 included $8.0 million in gains on sale of equity securities.

Noninterest Expense

The following table summarizes the components of noninterest expense for the periods indicated.

	For the Three Months Ended
	March 31,				December 31,
	2018		2017		2017
	(In thousands)
Salaries and related benefits	$	13,351	$	13,070	$	12,652
Occupancy and equipment		4,691		4,887		4,860
Outsourced data processing services		2,340		2,139		2,325
Professional fees		785		611		627
Amortization of identifiable intangibles		570		800		755
Courier service		463		421		423
Loss contingency		-		-		5,542
Impairment of tax credit investments		-		-		625
Other noninterest expense		2,014		2,687		2,358
Total	$	24,214	$	24,615	$	30,167

Noninterest expense decreased $401 thousand in the first quarter 2018 compared with the same period in 2017. Amortization of intangibles decreased $230 thousand as assets are amortized on a declining balance method. Other noninterest expense decreased $673 thousand primarily due to decreases in correspondent bank service charges and operational losses, partially offset by an increase in operating losses on limited partnership investments. Salaries and related benefits increased $281 thousand primarily due to higher employee benefit costs. Outsourced data processing services expense increased $201 thousand due to additional processing services.

In the first quarter 2018, noninterest expense decreased $6.0 million compared with the fourth quarter 2017 primarily because the fourth quarter 2017 included a $5.5 million loss contingency and a $625 thousand impairment charge on tax credit investments. Amortization of intangibles decreased $185 thousand as assets are amortized on a declining balance method. Other noninterest expense decreased $344 thousand primarily due to decreases in correspondent bank service charges. Salaries and related benefits increased $699 thousand primarily due to higher employee benefit costs.

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Provision for Income Tax

The Company’s first quarter 2018 income tax provision was $4.3 million compared with $19.7 million for the fourth quarter 2017 and $4.8 million for the first quarter 2017, representing effective tax rates of 19.7%, 82.6% and 24.3%, respectively. The book tax provisions for the first quarter 2018 and the first quarter 2017 include tax benefits of $451 thousand and $671 thousand, respectively, for tax deductions from the exercise of employee stock options which exceed related compensation expenses recognized in the financial statements; these benefits reduced the effective tax rate by 2.0% and 3.4%, respectively. The lower effective tax rate for the first quarter 2018 reflects a reduction in the federal corporate tax rate due to the Act. The book tax provision for the fourth quarter 2017 includes a charge of $12.3 million resulting from re-measurement of the Company’s net deferred tax asset triggered by enactment of the Act.

Investment Portfolio

The Company maintains an investment securities portfolio consisting of securities issued by U.S. Government sponsored entities, agency and non-agency mortgage backed securities, state and political subdivisions, corporations, and other securities.

Management has increased the investment securities portfolio in response to deposit growth and loan volume declines. The carrying value of the Company’s investment securities portfolio was $3.5 billion at March 31, 2018 and $3.4 billion at December 31, 2017.

Management continually evaluates the Company’s investment securities portfolio in response to established asset/liability management objectives, changing market conditions that could affect profitability, liquidity, and the level of interest rate risk to which the Company is exposed. These evaluations may cause Management to change the level of funds the Company deploys into investment securities and change the composition of the Company’s investment securities portfolio. In the first quarter 2018 corporate securities increased in order to improve yields without extending the duration of the bond portfolio.

At March 31, 2018, substantially all of the Company’s investment securities continue to be investment grade rated by one or more major rating agencies. In addition to monitoring credit rating agency evaluations, Management performs its own evaluations regarding the credit worthiness of the issuer or the securitized assets underlying asset-backed securities. The Company’s procedures for evaluating investments in securities are in accordance with guidance issued by the Board of Governors of the Federal Reserve System, “Investing in Securities without Reliance on Nationally Recognized Statistical Rating Agencies” (SR 12-15) and other regulatory guidance. There have been no significant differences in our internal analyses compared with the ratings assigned by the third party credit rating agencies.

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The following table summarizes total corporate securities by the industry sector in which the issuing companies operate:

	At March 31,					At December 31,
	2018					2017
	Market value		As a percent of total corporate securities			Market value		As a percent of total corporate securities
	($ in thousands)
Basic materials	$	34,445		3	%	$	35,219		3	%
Communications		49,814		4	%		50,763		5	%
Consumer, cyclical		22,513		2	%		12,592		1	%
Consumer, non-cyclical		160,164		13	%		133,476		12	%
Financial		488,173		41	%		525,932		47	%
Industrial		165,052		14	%		129,989		12	%
Technology		109,670		9	%		71,708		6	%
Utilities		172,068		14	%		155,819		14	%
Total corporate securities	$	1,201,899		100	%	$	1,115,498		100	%

The following tables summarize the total general obligation and revenue bonds issued by states and political subdivisions held in the Company’s investment securities portfolios as of the dates indicated, identifying the state in which the issuing government municipality or agency operates.

At March 31, 2018, the Company’s investment securities portfolios included securities issued by 635 state and local government municipalities and agencies located within 44 states. None of the Company’s investment securities were issued by Puerto Rican government entities. The largest exposure to any one municipality or agency was $9.8 million (fair value) represented by nine general obligation bonds.

	At March 31, 2018
	Amortized		Fair
	Cost		Value
	(In thousands)
Obligations of states and political subdivisions:
General obligation bonds:
California	$	105,741	$	106,722
Texas		63,630		63,202
New Jersey		38,023		37,999
Minnesota		29,819		29,831
Other (36 states)		287,885		286,822
Total general obligation bonds	$	525,098	$	524,576
Revenue bonds:
California	$	38,822	$	39,314
Kentucky		20,806		20,808
Iowa		17,287		17,184
Colorado		14,936		14,924
Washington		13,084		13,411
Indiana		12,890		12,884
Other (29 states)		126,564		126,578
Total revenue bonds	$	244,389	$	245,103
Total obligations of states and political subdivisions	$	769,487	$	769,679

At December 31, 2017, the Company’s investment securities portfolios included securities issued by 647 state and local government municipalities and agencies located within 44 states. None of the Company’s investment securities were issued by Puerto Rican government entities. The largest exposure to any one municipality or agency was $10.0 million (fair value) represented by nine general obligation bonds.

- 41 -

	At December 31, 2017
	Amortized		Fair
	Cost		Value
	(In thousands)
Obligations of states and political subdivisions:
General obligation bonds:
California	$	104,330	$	106,311
Texas		66,636		66,699
New Jersey		39,387		39,612
Minnesota		30,485		30,707
Other (36 states)		292,102		294,779
Total general obligation bonds	$	532,940	$	538,108
Revenue bonds:
California	$	38,838	$	39,660
Kentucky		21,731		21,958
Iowa		17,304		17,287
Colorado		14,956		15,086
Washington		13,506		13,963
Indiana		12,914		13,054
Other (29 states)		130,196		131,301
Total revenue bonds	$	249,445	$	252,309
Total obligations of states and political subdivisions	$	782,385	$	790,417

At March 31, 2018 and December 31, 2017, the revenue bonds in the Company’s investment securities portfolios were issued by state and local government municipalities and agencies to fund public services such as water utility, sewer utility, recreational and school facilities, and general public and economic improvements. The revenue bonds were payable from 22 revenue sources at March 31, 2018 and at December 31, 2017. The revenue sources that represent 5% or more individually of the total revenue bonds are summarized in the following tables.

	At March 31, 2018
	Amortized		Fair
	Cost		Value
	(In thousands)
Revenue bonds by revenue source:
Water	$	50,680	$	51,374
Sales tax		30,212		30,497
Sewer		28,696		28,965
Lease (renewal)		19,090		19,097
College & University		17,179		16,938
Other (17 sources)		98,532		98,232
Total revenue bonds by revenue source	$	244,389	$	245,103

	At December 31, 2017
	Amortized		Fair
	Cost		Value
	(In thousands)
Revenue bonds by revenue source:
Water	$	50,737	$	51,854
Sewer		30,427		31,030
Sales tax		30,233		30,777
Lease (renewal)		20,007		20,235
College & University		17,230		17,087
Other (17 sources)		100,811		101,326
Total revenue bonds by revenue source	$	249,445	$	252,309

See Note 3 to the unaudited consolidated financial statements for additional information related to the investment securities.

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Loan Portfolio Credit Risk

The Company extends loans to commercial and consumer customers which expose the Company to the risk borrowers will default, causing loan losses. The Company’s lending activities are exposed to various qualitative risks. All loan segments are exposed to risks inherent in the economy and market conditions. Significant risk characteristics related to the commercial loan segment include the borrowers’ business performance and financial condition, and the value of collateral for secured loans. Significant risk characteristics related to the commercial real estate segment include the borrowers’ business performance and the value of properties collateralizing the loans. Significant risk characteristics related to the construction loan segment include the borrowers’ performance in successfully developing the real estate into the intended purpose and the value of the property collateralizing the loans. Significant risk characteristics related to the residential real estate segment include the borrowers’ financial wherewithal to service the mortgages and the value of the property collateralizing the loans. Significant risk characteristics related to the consumer loan segment include the financial condition of the borrowers and the value of collateral securing the loans.

The preparation of the financial statements requires Management to estimate the amount of losses inherent in the loan portfolio and establish an allowance for credit losses. The allowance for credit losses is maintained by assessing or reversing a provision for loan losses through the Company’s earnings. In estimating credit losses, Management must exercise judgment in evaluating information deemed relevant, such as financial information regarding individual borrowers, overall credit loss experience, the amount of past due, nonperforming and classified loans, recommendations of regulatory authorities, prevailing economic conditions and other information. The amount of ultimate losses on the loan portfolio can vary from the estimated amounts. Management follows a systematic methodology to estimate loss potential in an effort to reduce the differences between estimated and actual losses.

The Company closely monitors the markets in which it conducts its lending operations and follows a strategy to control exposure to loans with high credit risk. The Bank’s organization structure separates the functions of business development and loan underwriting; Management believes this segregation of duties avoids inherent conflicts of combining business development and loan approval functions. In measuring and managing credit risk, the Company adheres to the following practices.

• The Bank maintains a Loan Review Department which reports directly to the audit committee of the Board of Directors. The Loan Review Department performs independent evaluations of loans to challenge the credit risk grades assigned by Management using grading standards employed by bank regulatory agencies. Those loans judged to carry higher risk attributes are referred to as “classified loans.” Classified loans receive elevated Management attention to maximize collection.

• The Bank maintains two loan administration offices whose sole responsibility is to manage and collect classified loans.

Classified loans with higher levels of credit risk are further designated as “nonaccrual loans.” Management places classified loans on nonaccrual status when full collection of contractual interest and principal payments is in doubt. Uncollected interest previously accrued on loans placed on nonaccrual status is reversed as a charge against interest income. The Company does not accrue interest income on loans following placement on nonaccrual status. Interest payments received on nonaccrual loans are applied to reduce the carrying amount of the loan unless the carrying amount is well secured by loan collateral. “Nonperforming assets” include nonaccrual loans, loans 90 or more days past due and still accruing, and repossessed loan collateral (commonly referred to as “Other Real Estate Owned”).

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Nonperforming Assets          

	At March 31,				At December 31,
	2018		2017		2017
	(In thousands)
Nonperforming nonaccrual loans	$	2,030	$	2,382	$	1,641
Performing nonaccrual loans		4,110		4,285		4,285
Total nonaccrual loans		6,140		6,667		5,926
Accruing loans 90 or more days past due		255		373		531
Total nonperforming loans		6,395		7,040		6,457
Other real estate owned		1,376		2,136		1,426
Total nonperforming assets	$	7,771	$	9,176	$	7,883

Nonperforming assets have declined during 2017 and the first quarter 2018 due to payoffs, chargeoffs and sale of Other Real Estate Owned. At March 31, 2018, one loan secured by commercial real estate with a balance of $4.1 million was on nonaccrual status. The remaining six nonaccrual loans held at March 31, 2018 had an average carrying value of $338 thousand and the largest carrying value was $1.0 million.

Management believes the overall credit quality of the loan portfolio is reasonably stable; however, classified and nonperforming assets could fluctuate from period to period. The performance of any individual loan can be affected by external factors such as the interest rate environment, economic conditions, and collateral values or factors particular to the borrower. No assurance can be given that additional increases in nonaccrual and delinquent loans will not occur in the future.

Allowance for Credit Losses

The Company’s allowance for loan losses represents Management’s estimate of loan losses inherent in the loan portfolio. In evaluating credit risk for loans, Management measures loss potential of the carrying value of loans. As described above, payments received on nonaccrual loans may be applied against the principal balance of the loans until such time as full collection of the remaining recorded balance is expected.

The following table summarizes the allowance for loan losses, chargeoffs and recoveries for the periods indicated:

	For the Three Months Ended
	March 31,						December 31,
	2018			2017			2017
	(In thousands)
Analysis of the Allowance for Loan Losses
Balance, beginning of period	$	23,009		$	25,954		$	23,628
Provision (reversal) for loan losses		-			-			-
Loans charged off
Commercial		(41	)		(103	)		-
Consumer installment and other		(1,365	)		(1,739	)		(1,174	)
Total chargeoffs		(1,406	)		(1,842	)		(1,174	)
Recoveries of loans previously charged off
Commercial		829			160			136
Commercial real estate		-			10			-
Consumer installment and other		649			637			419
Total recoveries		1,478			807			555
Net loan recoveries (losses)		72			(1,035	)		(619	)
Balance, end of period	$	23,081		$	24,919		$	23,009
Net loan (recoveries) losses as a percentage of average total loans (annualized)		(0.02	)%		0.31	%		0.19	%

The Company's allowance for loan losses is maintained at a level considered appropriate to provide for losses that can be estimated based upon specific and general conditions. These include conditions unique to individual borrowers, as well as overall loan loss experience, the amount of past due, nonperforming and classified loans, recommendations of regulatory authorities, prevailing economic conditions and other factors. A portion of the allowance is individually allocated to impaired loans whose full collectability of principal is uncertain. Such allocations are determined by Management based on loan-by-loan analyses. The Company evaluates for impairment all loans with outstanding principal balances in excess of $500 thousand which are classified or on nonaccrual status and all “troubled debt restructured” loans. The remainder of the loan portfolio is collectively evaluated for impairment based in part on quantitative analyses of historical loan loss experience of loan portfolio segments to determine standard loss rates for each segment. The loss rate for each loan portfolio segment reflects both the historical loss experience during a look-back period and a loss emergence period. Liquidating purchased consumer installment loans are evaluated separately by applying historical loss rates to forecasted liquidating principal balances to measure losses inherent in this portfolio segment. The loss rates are applied to segmented loan balances to allocate the allowance to the segments of the loan portfolio.

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The remainder of the allowance is considered to be unallocated. The unallocated allowance is established to provide for probable losses that have been incurred as of the reporting date but not reflected in the allocated allowance. The unallocated allowance addresses additional qualitative factors consistent with Management's analysis of the level of risks inherent in the loan portfolio, which are related to the risks of the Company's general lending activity. Included in the unallocated allowance is the risk of losses that are attributable to national or local economic or industry trends which have occurred but have not yet been recognized in loan chargeoff history (external factors). The primary external factor evaluated by the Company and the judgmental amount of unallocated reserve assigned by Management as of March 31, 2018 is economic and business conditions $0.7 million. Also included in the unallocated allowance is the risk of losses attributable to general attributes of the Company's loan portfolio and credit administration (internal factors). The internal factors evaluated by the Company and the judgmental amount of unallocated reserve assigned by Management are: loan review system $1.0 million, adequacy of lending Management and staff $0.9 million and concentrations of credit $1.3 million.

	Allowance for Loan Losses
	For the Three Months Ended March 31, 2018
													Consumer
				Commercial						Residential			Installment
	Commercial			Real Estate			Construction			Real Estate			and Other			Unallocated		Total
	(In thousands)
Allowance for loan losses:
Balance at beginning of period	$	7,746		$	3,849		$	335		$	995		$	6,418		$	3,666	$	23,009
Additions:
(Reversal) provision		(17	)		(25	)		(160	)		(87	)		37			252		-
Deductions:
Chargeoffs		(41	)		-			-			-			(1,365	)		-		(1,406	)
Recoveries		829			-			-			-			649			-		1,478
Net loan recoveries (losses)		788			-			-			-			(716	)		-		72
Total allowance for loan losses	$	8,517		$	3,824		$	175		$	908		$	5,739		$	3,918	$	23,081

	Allowance for Loan Losses and Recorded Investment in Loans Evaluated for Impairment
	At March 31, 2018
	Commercial		Commercial Real Estate		Construction		Residential Real Estate		Consumer Installment and Other		Unallocated		Total
	(In thousands)
Allowance for loan losses:
Individually evaluated for impairment	$	4,777	$	214	$	-	$	-	$	-	$	-	$	4,991
Collectively evaluated for impairment		3,740		3,610		175		908		5,739		3,918		18,090
Purchased loans with evidence of credit deterioration		-		-		-		-		-		-		-
Total	$	8,517	$	3,824	$	175	$	908	$	5,739	$	3,918	$	23,081
Carrying value of loans:
Individually evaluated for impairment	$	10,513	$	11,393	$	-	$	206	$	-	$	-	$	22,112
Collectively evaluated for impairment		296,432		541,327		2,941		59,278		305,705		-		1,205,683
Purchased loans with evidence of credit deterioration		33		598		-		-		158		-		789
Total	$	306,978	$	553,318	$	2,941	$	59,484	$	305,863	$	-	$	1,228,584

The portion of the allowance for loan losses ascribed to loan segments declined from March 31, 2017 to March 31, 2018 due to declines in classified loans, delinquent loans, and the overall loan portfolio. The decline in the unallocated portion was due to improved economic conditions within the Company’s geographic markets and credit quality metrics.

Management considers the $23.1 million allowance for loan losses to be adequate as a reserve against loan losses inherent in the loan portfolio as of March 31, 2018.

See Note 4 to the unaudited consolidated financial statements for additional information related to the loan portfolio, loan portfolio credit risk, and allowance for loan losses.

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Asset/Liability and Market Risk Management

Asset/liability management involves the evaluation, monitoring and management of interest rate risk, market risk, liquidity and funding. The fundamental objective of the Company's management of assets and liabilities is to maximize its economic value while maintaining adequate liquidity and a conservative level of interest rate risk.

Interest Rate Risk

Interest rate risk is a significant market risk affecting the Company. Many factors affect the Company’s exposure to interest rates, such as general economic and financial conditions, customer preferences, historical pricing relationships, and re-pricing characteristics of financial instruments. Assets and liabilities may mature or re-price at different times. Assets and liabilities may re-price at the same time but by different amounts. Short-term and long-term market interest rates may change by different amounts. The timing and amount of cash flows of various assets or liabilities may shorten or lengthen as interest rates change. In addition, the changing levels of interest rates may have an impact on loan demand, demand for various deposit products, credit losses, and other elements of earnings such as account analysis fees on commercial deposit accounts and correspondent bank service charges.

The Company’s earnings are affected not only by general economic conditions, but also by the monetary and fiscal policies of the United States government and its agencies, particularly the Federal Open Market Committee (the “FOMC”). The monetary policies of the FOMC can influence the overall growth of loans, investment securities, and deposits and the level of interest rates earned on assets and paid for liabilities. The nature and impact of future changes in monetary policies are generally not predictable.

Management’s most likely earnings forecast for the twelve months ending March 31, 2019 assumes market interest rates will gradually rise, with short-term rates rising more than long-term rates.

Management attempts to manage interest rate risk while enhancing the net interest margin and net interest income. At times, depending on expected increases or decreases in general interest rates, the relationship between long and short-term interest rates, market conditions and competitive factors, Management may adjust the Company's interest rate risk position. The Company's results of operations and net portfolio values remain subject to changes in interest rates and to fluctuations in the difference between long and short-term interest rates.

The Company’s asset and liability position was slightly “asset sensitive” at March 31, 2018, depending on the interest rate assumptions applied to the simulation model employed by Management to measure interest rate risk. An “asset sensitive” position results in a slightly larger change in interest income than in interest expense resulting from application of assumed interest rate changes. Simulation estimates depend on, and will change with, the size and mix of the actual and projected balance sheet at the time of each simulation. Management continues to monitor the interest rate environment as well as economic conditions and other factors it deems relevant in managing the Company's exposure to interest rate risk.

The Company does not currently engage in trading activities or use derivative instruments to control interest rate risk, even though such activities may be permitted with the approval of the Company's Board of Directors.

Market Risk - Equity Markets

Equity price risk can affect the Company. As an example, any preferred or common stock holdings, as permitted by banking regulations, can fluctuate in value. Management regularly assesses the extent and duration of any declines in market value, the causes of such declines, the likelihood of a recovery in market value, and its intent to hold securities until a recovery in value occurs. Declines in value of preferred or common stock holdings that are deemed “other than temporary” could result in loss recognition in the Company's income statement.

Fluctuations in the Company's common stock price can impact the Company's financial results in several ways. First, the Company has regularly repurchased and retired its common stock; the market price paid to retire the Company's common stock affects the level of the Company's shareholders' equity, cash flows and shares outstanding. Second, the Company's common stock price impacts the number of dilutive equivalent shares used to compute diluted earnings per share. Third, fluctuations in the Company's common stock price can motivate holders of options to purchase Company common stock through the exercise of such options thereby increasing the number of shares outstanding and potentially adding volatility to the book tax provision. Finally, the amount of compensation expense associated with share based compensation fluctuates with changes in and the volatility of the Company's common stock price.

- 46 -

Market Risk - Other

Market values of loan collateral can directly impact the level of loan chargeoffs and the provision for loan losses. The financial condition and liquidity of debtors issuing bonds and debtors whose mortgages or other obligations are securitized can directly impact the credit quality of the Company’s investment securities portfolio requiring the Company to recognize other than temporary impairment charges. Other types of market risk, such as foreign currency exchange risk, are not significant in the normal course of the Company's business activities.

Liquidity and Funding

The objective of liquidity management is to manage cash flow and liquidity reserves so that they are adequate to fund the Company's operations and meet obligations and other commitments on a timely basis and at a reasonable cost. The Company achieves this objective through the selection of asset and liability maturity mixes that it believes best meet its needs. The Company's liquidity position is enhanced by its ability to raise additional funds as needed in the wholesale markets.

In recent years, the Company's deposit base has provided the majority of the Company's funding requirements. This relatively stable and low-cost source of funds, along with shareholders' equity, provided 98 percent of funding for average total assets in the first quarter 2018 and in 2017. The stability of the Company’s funding from customer deposits is in part reliant on the confidence clients have in the Company. The Company places a very high priority in maintaining this confidence through conservative credit and capital management practices and by maintaining an appropriate level of liquidity reserves.

Liquidity is further provided by assets such as balances held at the Federal Reserve Bank, investment securities, and amortizing loans. The Company's investment securities portfolio provides a substantial secondary liquidity reserve. The Company held $3.5 billion in total investment securities at March 31, 2018. Under certain deposit, borrowing and other arrangements, the Company must hold and pledge investment securities as collateral. At March 31, 2018, such collateral requirements totaled approximately $696 million.

Liquidity risk can result from the mismatching of asset and liability cash flows, or from disruptions in the financial markets. The Company performs liquidity stress tests on a periodic basis to evaluate the sustainability of its liquidity. Under the stress testing, the Company assumes outflows of funds increase beyond expected levels. Measurement of such heightened outflows considers the composition of the Company’s deposit base, including any concentration of deposits, non-deposit funding such as short-term borrowings, and unfunded lending commitments. The Company evaluates its stock of highly liquid assets to meet the assumed higher levels of outflows. Highly liquid assets include cash and amounts due from other banks from daily transaction settlements, reduced by branch cash needs and Federal Reserve Bank reserve requirements, and investment securities based on regulatory risk-weighting guidelines. Based on the results of the most recent liquidity stress test, Management is satisfied with the liquidity condition of the Bank and the Company. However, no assurance can be given the Bank or Company will not experience a period of reduced liquidity.

Management continually monitors the Company’s cash levels. Loan demand from credit worthy borrowers will be dictated by economic and competitive conditions. The Company aggressively solicits non-interest bearing demand deposits and money market checking deposits, which are the least sensitive to changes in interest rates. The growth of these deposit balances is subject to heightened competition, the success of the Company's sales efforts, delivery of superior customer service, new regulations and market conditions. The Company does not aggressively solicit higher-costing time deposits; as a result, Management anticipates such deposits will decline. Changes in interest rates, most notably rising interest rates, could impact deposit volumes. Depending on economic conditions, interest rate levels, liquidity management and a variety of other conditions, deposit growth may be used to fund loans or purchase investment securities. However, due to possible volatility in economic conditions, competition and political uncertainty, loan demand and levels of customer deposits are not certain. Shareholder dividends are expected to continue subject to the Board's discretion and continuing evaluation of capital levels, earnings, asset quality and other factors.

Westamerica Bancorporation ("Parent Company") is a separate entity apart from Westamerica Bank (“Bank”) and must provide for its own liquidity. In addition to its operating expenses, the Parent Company is responsible for the payment of dividends declared for its shareholders, and interest and principal on any outstanding debt. The Parent Company currently has no debt. Substantially all of the Parent Company's revenues are obtained from subsidiary dividends and service fees.

The Bank’s dividends paid to the Parent Company, proceeds from the exercise of stock options, and Parent Company cash balances provided adequate cash for the Parent Company to pay shareholder dividends of $11 million in the first quarter 2018 and $41 million in 2017, and retire common stock in the amount of $-0- in the first quarter 2018 and $314 thousand in 2017. Payment of dividends to the Parent Company by the Bank is limited under California and Federal laws. The Company believes these regulatory dividend restrictions will not have an impact on the Parent Company's ability to meet its ongoing cash obligations.

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Capital Resources

The Company has historically generated high levels of earnings, which provide a means of accumulating capital. The Company's net income as a percentage of average shareholders' equity (“return on equity” or “ROE”) has been 11.6% in the first quarter 2018 and 8.4% in 2017. The Company also raises capital as employees exercise stock options. Capital raised through the exercise of stock options was $8 million in the first quarter 2018 and $25 million in 2017.

The Company paid common dividends totaling $11 million in the first quarter 2018 and $41 million in 2017, which represent dividends per common share of $0.40 and $1.57, respectively. The Company's earnings have historically exceeded dividends paid to shareholders. The amount of earnings in excess of dividends provides the Company resources to finance growth and maintain appropriate levels of shareholders' equity. In the absence of profitable growth opportunities, the Company has at times repurchased and retired its common stock as another means to return earnings to shareholders. The Company repurchased and retired -0- shares in the first quarter 2018 and 6 thousand shares valued at $314 thousand in 2017.

The Company's primary capital resource is shareholders' equity, which was $582 million at March 31, 2018 compared with $590 million at December 31, 2017. The Company's ratio of equity to total assets was 10.49% at March 31, 2018 and 10.71% at December 31, 2017.

The Company performs capital stress tests on a periodic basis to evaluate the sustainability of its capital. Under the stress testing, the Company assumes various scenarios such as deteriorating economic and operating conditions, unanticipated asset devaluations, and significant operational lapses. The Company measures the impact of these scenarios on its earnings and capital. Based on the results of the most recent stress tests, Management is satisfied with the capital condition of the Bank and the Company. However, no assurance can be given the Bank or Company will not experience a period of reduced earnings or a reduction in capital from unanticipated events and circumstances.

Capital to Risk-Adjusted Assets

On July 2, 2013, the Federal Reserve Board approved a final rule that implements changes to the regulatory capital framework for all banking organizations. The rule’s provisions which most affected the regulatory capital requirements of the Company and the Bank:

• Introduced a new “Common Equity Tier 1” capital measurement,

• Established higher minimum levels of capital,

• Introduced a “capital conservation buffer,”

• Increased the risk-weighting of certain assets, and

• Established limits on the amount of deferred tax assets with any excess treated as a deduction from Tier 1 capital.

Under the final rule, a banking organization that is not subject to the “advanced approaches rule” may make a one-time election not to include most elements of Accumulated Other Comprehensive Income, including net-of-tax unrealized gains and losses on available for sale investment securities, in regulatory capital. Neither the Company nor the Bank is subject to the “advanced approaches rule” and both made the election not to include most elements of Accumulated Other Comprehensive Income in regulatory capital.

Banking organizations that are not subject to the “advanced approaches rule” began complying with the final rule on January 1, 2015; on such date, the Company and the Bank became subject to the revised definitions of regulatory capital, the new minimum regulatory capital ratios, and various regulatory capital adjustments and deductions according to transition provisions and timelines. All banking organizations began calculating standardized total risk-weighted assets on January 1, 2015. The transition period for the capital conservation buffer for all banking organizations began on January 1, 2016 and will end January 1, 2019. Any bank subject to the rule which is unable to maintain its “capital conservation buffer” will be restricted in the payment of discretionary executive compensation and shareholder distributions, such as dividends and share repurchases.

The final rule did not supersede provisions of the Federal Deposit Insurance Corporation Improvement Act (FDICIA) requiring federal banking agencies to take prompt corrective action (PCA) to resolve problems of insured depository institutions. The final rule revised the PCA thresholds to incorporate the higher minimum levels of capital, including the “common equity tier 1” ratio.

- 48 -

The capital ratios for the Company and the Bank under the new capital framework are presented in the tables below, on the dates indicated.

													To Be
							Required for						Well-capitalized
							Capital Adequacy Purposes						Under Prompt
	At March 31, 2018						Effective			Effective			Corrective Action
	Company			Bank			January 1, 2018			January 1, 2019			Regulations (Bank)
Common Equity Tier I Capital		15.72	%		12.97	%		6.375	%(1)		7.00	%(2)		6.50	%
Tier I Capital		15.72	%		12.97	%		7.875	%(1)		8.50	%(2)		8.00	%
Total Capital		16.53	%		13.98	%		9.875	%(1)		10.50	%(2)		10.00	%
Leverage Ratio		9.12	%		7.48	%		4.000	%		4.00	%		5.00	%

⁽¹⁾ Includes 1.875% capital conservation buffer.

⁽²⁾ Includes 2.5% capital conservation buffer.

													To Be
							Required for						Well-capitalized
							Capital Adequacy Purposes						Under Prompt
	At December 31, 2017						Effective			Effective			Corrective Action
	Company			Bank			January 1, 2017			January 1, 2019			Regulations (Bank)
Common Equity Tier I Capital		15.36	%		12.50	%		5.75	%(3)		7.00	%(4)		6.50	%
Tier I Capital		15.36	%		12.50	%		7.25	%(3)		8.50	%(4)		8.00	%
Total Capital		16.17	%		13.52	%		9.25	%(3)		10.50	%(4)		10.00	%
Leverage Ratio		8.86	%		7.16	%		4.00	%		4.00	%		5.00	%

⁽³⁾ Includes 1.25% capital conservation buffer.

⁽⁴⁾ Includes 2.5% capital conservation buffer.

The Company and the Bank routinely project capital levels by analyzing forecasted earnings, credit quality, securities valuations, shareholder dividends, asset volumes, share repurchase activity, stock option exercise proceeds, and other factors. Based on current capital projections, the Company and the Bank expect to maintain regulatory capital levels exceeding the highest effective regulatory standard and pay quarterly dividends to shareholders. No assurance can be given that changes in capital management plans will not occur.

Item 3. Quantitative and Qualitative Disclosures about Market Risk

The Company does not currently engage in trading activities or use derivative instruments to control interest rate risk, even though such activities may be permitted with the approval of the Company’s Board of Directors.

Credit risk and interest rate risk are the most significant market risks affecting the Company, and equity price risk can also affect the Company’s financial results. These risks are described in the preceding sections regarding “Loan Portfolio Credit Risk,” and “Asset/Liability and Market Risk Management.” Other types of market risk, such as foreign currency exchange risk and commodity price risk, are not significant in the normal course of the Company’s business activities.

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Item 4. Controls and Procedures

The Company’s principal executive officer and principal financial officer have evaluated the effectiveness of the Company’s “disclosure controls and procedures,” as such term is defined in Rule 13a-15(e) of the Securities Exchange Act of 1934, as amended, as of March 31, 2018.

Based upon their evaluation, the principal executive officer and principal financial officer concluded that the Company’s disclosure controls and procedures are effective to ensure that material information required to be disclosed by the Company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported as and when required and that such information is communicated to the Company’s management, including the principal executive officer and the principal financial officer, to allow for timely decisions regarding required disclosures. The evaluation did not identify any change in the Company’s internal control over financial reporting that occurred during the quarter ended March 31, 2018 that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

PART II. OTHER INFORMATION

Item 1. Legal Proceedings

Neither the Company nor any of its subsidiaries is a party to any material pending legal proceeding, nor is their property the subject of any material pending legal proceeding, other than ordinary routine legal proceedings arising in the ordinary course of the Company’s business. None of these proceedings is expected to have a material adverse impact upon the Company’s business, financial position or results of operations.

Item 1A. Risk Factors

The Company’s Form 10-K as of December 31, 2017 includes detailed disclosure about the risks faced by the Company’s business; such risks have not materially changed since the Form 10-K was filed.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

(a) Previously reported on Form 8-K.

(b) None

(c) Issuer Purchases of Equity Securities

The table below sets forth the information with respect to purchases made by or on behalf of Westamerica Bancorporation or any “affiliated purchaser” (as defined in Rule 10b-18(a)(3) under the Securities Exchange Act of 1934), of common stock during the quarter ended March 31, 2018 (in thousands, except per share data).

	2018
Period	(a) Total Number of shares Purchased		(b) Average Price Paid per Share		(c) Number of Shares Purchased as Part of Publicly Announced Plans or Programs		(d) Maximum Number of Shares that May Yet Be Purchased Under the Plans or Programs
	(In thousands, except price paid)
January 1 through January 31		-	$	-		-		1,750
February 1 through February 28		-		-		-		1,750
March 1 through March 31		-		-		-		1,750
Total		-	$	-		-		1,750

The Company repurchases shares of its common stock in the open market on a discretionary basis to optimize the Company’s use of equity capital and enhance shareholder value and with the intention of lessening the dilutive impact of issuing new shares under stock option plans, and other ongoing requirements.

- 50 -

No shares were repurchased during the period from January 1, 2018 through March 31, 2018. A program approved by the Board of Directors on July 27, 2017 authorizes the purchase of up to 1,750 thousand shares of the Company’s common stock from time to time prior to September 1, 2018.

Item 3. Defaults upon Senior Securities

None

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

None

Item 6. Exhibits

The exhibit list required by this item is incorporated by reference to the Exhibit Index filed with this report.

[The remainder of this page intentionally left blank]

- 51 -

SIGNATURES

Pursuant to the requirements 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.

WESTAMERICA BANCORPORATION

(Registrant)

/s/ JOHN "ROBERT" THORSON

John "Robert" Thorson

Senior Vice President and Chief Financial Officer

(Principal Financial and Chief Accounting Officer)

Date: May 4, 2018

- 52 -

EXHIBIT INDEX

Exhibit 31.1: Certification of Chief Executive Officer pursuant to Securities Exchange Act Rule 13a-14(a)/15d-14(a)

Exhibit 31.2: Certification of Chief Financial Officer pursuant to Securities Exchange Act Rule 13a-14(a)/15d-14(a)

Exhibit 32.1: Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 32.2: Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 101.INS: XBRL Instance Document

Exhibit 101.SCH: XBRL Taxonomy Extension Schema Document

Exhibit 101.CAL: XBRL Taxonomy Extension Calculation Linkbase Document

Exhibit 101.DEF: XBRL Taxonomy Extension Definitions Linkbase Document

Exhibit 101.LAB: XBRL Taxonomy Extension Label Linkbase Document

Exhibit 101.PRE: XBRL Taxonomy Extension Presentation Linkbase Document

[The remainder of this page intentionally left blank]

- 53 -

EX-31.1

EXHIBIT 31.1

CERTIFICATION UNDER SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, David L. Payne certify that:

1. I have reviewed this report on Form 10-Q of Westamerica Bancorporation;

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(s) 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 subsidiaries, 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 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(s) 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 control over financial reporting.

/s/ David L. Payne

David L. Payne

Chairman, President and Chief Executive Officer

Date: May 4, 2018

- 54 -

EX-31.2

EXHIBIT 31.2

CERTIFICATION UNDER SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, John "Robert" Thorson certify that:

1. I have reviewed this report on Form 10-Q of Westamerica Bancorporation;

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(s) 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 subsidiaries, 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 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(s) 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 control over financial reporting.

/s/ John "Robert" Thorson

John “Robert” Thorson

Senior Vice President and Chief Financial Officer

Date: May 4, 2018

- 55 -

EX-32.1

EXHIBIT 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Westamerica Bancorporation (the Company) on Form 10-Q for the period ended March 31, 2018 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, David L. Payne, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report 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 the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ David L. Payne

David L. Payne

Chairman, President and Chief Executive Officer

Date: May 4, 2018

- 56 -

EX-32.2

EXHIBIT 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 AS ADOPTED PURSUANT TOSECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Westamerica Bancorporation (the Company) on Form 10-Q for the period ended March 31, 2018 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, John "Robert" Thorson, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report 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 the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ John "Robert" Thorson

John “Robert” Thorson

Senior Vice President and Chief Financial Officer

Date: May 4, 2018

- 57 -

XML

Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2018	Apr. 26, 2018
Document Information [Line Items]
Entity Registrant Name	WESTAMERICA BANCORPORATION
Entity Central Index Key	0000311094
Trading Symbol	wabc
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	Yes
Entity Common Stock, Shares Outstanding (in shares)		26,626,524
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
Amendment Flag	false

XML

Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Assets:
Cash and due from banks	$ 555,607	$ 575,002
Equity securities	1,764	1,800
Debt securities available for sale	2,351,970	2,191,707
Debt securities held to maturity, with fair values of: $1,098,895 at March 31, 2018 and $1,155,342 at December 31, 2017	1,114,287	1,158,864
Loans	1,228,584	1,287,982
Allowance for loan losses	(23,081)	(23,009)
Loans, net of allowance for loan losses	1,205,503	1,264,973
Other real estate owned	1,376	1,426
Premises and equipment, net	35,790	35,301
Identifiable intangibles, net	3,280	3,850
Goodwill	121,673	121,673
Other assets	159,786	158,450
Total Assets	5,551,036	5,513,046
Liabilities:
Noninterest-bearing deposits	2,179,157	2,197,526
Interest-bearing deposits	2,688,710	2,630,087
Total deposits	4,867,867	4,827,613
Short-term borrowed funds	65,356	58,471
Other liabilities	35,730	36,723
Total Liabilities	4,968,953	4,922,807
Contingencies (Note 10)
Shareholders' Equity:
Common stock (no par value), authorized - 150,000 shares Issued and outstanding: 26,591 at March 31, 2018 and 26,425 at December 31, 2017	439,817	431,734
Deferred compensation	1,533	1,533
Accumulated other comprehensive loss	(43,452)	(16,832)
Retained earnings	184,185	173,804
Total Shareholders' Equity	582,083	590,239
Total Liabilities and Shareholders' Equity	$ 5,551,036	$ 5,513,046

XML

Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) shares in Thousands, $ / shares in Thousands, $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Debt securities held to maturity, fair values	$ 1,098,895	$ 1,155,342
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	150,000	150,000
Common stock, issued (in shares)	26,591	26,425
Common stock, outstanding (in shares)	26,591	26,425

XML

Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Interest and Fee Income:
Loans	$ 14,697	$ 15,780
Equity securities	85	74
Debt securities available for sale	13,551	10,175
Debt securities held to maturity	6,174	7,295
Total Interest and Fee Income	34,507	33,324
Interest Expense:
Deposits	450	469
Short-term borrowed funds	9	11
Total Interest Expense	459	480
Net Interest and Fee Income	34,048	32,844
Provision for Loan Losses
Net Interest and Fee Income After Provision For Loan Losses	34,048	32,844
Noninterest Income:
Equity securities losses	(36)
Other noninterest income	1,062	1,256
Total Noninterest Income	11,955	11,657
Noninterest Expense:
Salaries and related benefits	13,351	13,070
Occupancy and equipment	4,691	4,887
Outsourced data processing services	2,340	2,139
Professional fees	785	611
Amortization of identifiable intangibles	570	800
Courier service	463	421
Other noninterest expense	2,014	2,687
Total Noninterest Expense	24,214	24,615
Income Before Income Taxes	21,789	19,886
Provision for income taxes	4,283	4,837
Net Income	$ 17,506	$ 15,049
Average Common Shares Outstanding (in shares)	26,532	26,171
Average Diluted Common Shares Outstanding (in shares)	26,665	26,329
Per Common Share Data:
Basic earnings (in dollars per share)	$ 0.66	$ 0.58
Diluted earnings (in dollars per share)	0.66	0.57
Dividends paid (in dollars per share)	$ 0.40	$ 0.39
Deposit Account [Member]
Noninterest Income:
Noninterest income revenue	$ 4,752	$ 4,923
Credit Card, Merchant Discount [Member]
Noninterest Income:
Noninterest income revenue	2,420	1,875
Debit Card [Member]
Noninterest Income:
Noninterest income revenue	1,605	1,481
Fiduciary and Trust [Member]
Noninterest Income:
Noninterest income revenue	743	702
ATM Processing Fees [Member]
Noninterest Income:
Noninterest income revenue	664	575
Financial Service, Other [Member]
Noninterest Income:
Noninterest income revenue	631	650
Financial Services Commission [Member]
Noninterest Income:
Noninterest income revenue	$ 114	$ 195

XML

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Net income	$ 17,506	$ 15,049
Other comprehensive (loss) income:
Changes in net unrealized gains on debt securities available for sale	(32,846)	1,074
Deferred tax benefit (expense)	9,709	(452)
Changes in net unrealized gains on debt securities available for sale, net of tax	(23,137)	622
Post-retirement benefit transition obligation amortization		15
Deferred tax expense		(6)
Post-retirement benefit transition obligation amortization, net of tax		9
Total other comprehensive (loss) income	(23,137)	631
Total comprehensive (loss) income	$ (5,631)	$ 15,680

XML

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Accumulated Deferred Compensation [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2016	25,907
Balance at Dec. 31, 2016	$ 404,606	$ 1,533	$ (10,074)	$ 165,302	$ 561,367
Net income				15,049	15,049
Other comprehensive income			631		631
Exercise of stock options (in shares)	376
Exercise of stock options	$ 17,593				17,593
Stock based compensation	456				456
Stock awarded to employees	15				15
Dividends				(10,223)	(10,223)
Balance (in shares) at Mar. 31, 2017	26,283
Balance at Mar. 31, 2017	$ 422,670	1,533	(9,443)	170,128	584,888
Balance (in shares) at Dec. 31, 2017	26,425
Balance at Dec. 31, 2017	$ 431,734	1,533	(16,832)	173,804	590,239
Cumulative effect of equity securities losses reclassified at Dec. 31, 2017			142	(142)
Adjusted Balance at Dec. 31, 2017	$ 431,734	1,533	(16,690)	173,662	590,239
Balance (in shares) at Dec. 31, 2017	26,425
Balance at Dec. 31, 2017	$ 431,734	1,533	(16,832)	173,804	590,239
Net income				17,506	17,506
Other comprehensive income			(23,137)		(23,137)
Exercise of stock options (in shares)	166
Exercise of stock options	$ 7,534				7,534
Stock based compensation	525				525
Stock awarded to employees	24				24
Dividends				(10,608)	(10,608)
Cumulative effect of equity securities losses reclassified at Dec. 31, 2017			142	(142)
Adjusted Balance at Dec. 31, 2017	431,734	1,533	(16,690)	173,662	590,239
Reclass stranded tax effects resulting from the Tax Cuts and Jobs Act			(3,625)	3,625
Balance (in shares) at Mar. 31, 2018	26,591
Balance at Mar. 31, 2018	$ 439,817	$ 1,533	$ (43,452)	$ 184,185	$ 582,083

XML

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Operating Activities:
Net income		$ 17,506	$ 15,049
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization/accretion		1,643	5,754
Net amortization of deferred net loan (fees) cost		(40)	26
Decrease in interest income receivable		1,019	1,744
Life insurance premiums paid		(203)	(126)
Increase in income taxes payable		4,302	2,896
(Increase) decrease in deferred tax asset		(20)	1,441
Decrease in other assets		2,676	895
Stock option compensation expense		525	456
Increase in interest expense payable		15	8
Decrease in other liabilities		(984)	(2,864)
Equity securities losses		36
Writedown of premises and equipment		1	50
Net gain on sale of foreclosed assets			(55)
Net Cash Provided by Operating Activities		26,476	25,274
Investing Activities:
Net repayments of loans		59,959	1,526
Net receipts under FDIC(1) indemnification agreements	[1]		129
Purchases of debt securities available for sale		(279,327)	(51,297)
Proceeds from sale/maturity/calls of debt securities available for sale		86,218	47,600
Proceeds from maturity/calls of debt securities held to maturity		44,577	45,640
Purchases of premises and equipment		(1,413)	(501)
Proceeds from sale of FRB(2) stock	[2]		24
Proceeds from sale of foreclosed assets		50	1,014
Net Cash (Used in) Provided by Investing Activities		(89,936)	44,135
Financing Activities:
Net change in deposits		40,254	(6,768)
Net change in short-term borrowings		6,885	14,533
Exercise of stock options/issuance of shares		7,534	17,593
Common stock dividends paid		(10,608)	(10,223)
Net Cash Provided by Financing Activities		44,065	15,135
Net Change In Cash and Due from Banks		(19,395)	84,544
Cash and Due from Banks at Beginning of Period		575,002	462,271
Cash and Due from Banks at End of Period		555,607	546,815
Supplemental disclosure of noncash activities:
Loan collateral transferred to other real estate owned
Securities purchases pending settlement
Supplemental disclosure of cash flow activities:
Interest paid for the period		444	504
Income tax payments for the period			$ 500

[1] Federal Deposit Insurance Corporation ("FDIC")

[2] Federal Reserve Bank ("FRB")

XML

Note 1 - Basis of Presentation

3 Months Ended

Mar. 31, 2018

Notes to Financial Statements

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

Note

1:

Basis of Presentation

The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America for interim financial information and pursuant to the rules and regulations of the Securities and Exchange Commission and follow general practices within the banking industry. The results of operations reflect interim adjustments, all of which are of a normal recurring nature and which, in the opinion of Management, are necessary for a fair presentation of the results for the interim periods presented. The interim results for the

three

months ended

March 31, 2018

are

not

necessarily indicative of the results expected for the full year. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes as well as other information included in the Company's Annual Report on Form

10

-K for the year ended

December 31, 2017.

XML

Note 2 - Accounting Policies

3 Months Ended

Mar. 31, 2018

Notes to Financial Statements

Significant Accounting Policies [Text Block]

Note

2:

Accounting Policies

The most significant accounting policies followed by the Company are presented in Note

1

to the audited consolidated financial statements included in the Company’s Annual Report on Form

10

-K for the year ended

December 31, 2017.

These policies, along with the disclosures presented in the other financial statement notes and in this discussion, provide information on how significant assets and liabilities are valued in the financial statements and how those values are determined. Based on the valuation techniques used and the sensitivity of financial statement amounts to the methods, assumptions, and estimates underlying those amounts, it is reasonably possible conditions could change materially affecting results of operations and financial conditions.

Application of these principles requires the Company to make certain estimates, assumptions, and judgments that affect the amounts reported in the financial statements and accompanying notes. These estimates, assumptions, and judgments are based on information available as of the date of the financial statements; accordingly, as this information changes, the financial statements could reflect different estimates, assumptions, and judgments. Certain accounting policies inherently have a greater reliance on the use of estimates, assumptions and judgments and as such have a greater possibility of producing results that could be materially different than originally reported. Estimates, assumptions and judgments are necessary when assets and liabilities are required to be recorded at fair value, when a decline in the value of an asset

not

carried on the financial statements at fair value warrants an impairment writedown or valuation reserve to be established, or when an asset or liability needs to be recorded contingent upon a future event. Carrying assets and liabilities at fair value inherently results in more financial statement volatility. The fair values and the information used to record valuation adjustments for certain assets and liabilities are based either on quoted market prices or are provided by other

third

-party sources, when available.

Certain amounts in prior periods have been reclassified to conform to the current presentation.

Recently Adopted Accounting Standards

In the

three

months ended

March 31, 2018,

the Company adopted the following new accounting guidance:

FASB Accounting Standard Update (ASU)

2014

-

09

,

Revenue (Topic

606

): Revenue from Contracts with Customers,

was issued

May 2014.

The ASU specifies a standardized approach for revenue recognition across industries and transactions. The ASU also requires additional disclosures. The scope of the ASU does

not

include revenue streams covered by other ASU topics; thus, Topic

606

does

not

apply to revenue related to financial instruments, guarantees and leases, such as the Company’s net interest income.

Approximately

73%

of our revenue, including all of our net interest income and a portion of our noninterest income, is out of scope of the guidance. The contracts that are in scope of the guidance are primarily related to service charges and fees on deposit accounts, merchant processing fees, debit card fees, ATM processing fees, trust fees and other service charges, commissions and fees. We have completed analyzing the individual contracts in scope and determined our revenue recognition practices within the scope of the ASU as described below did

not

change in any material regard upon adoption of the ASU.

Service Charges on Deposit Accounts

: The Company earns fees from its deposit customers for transaction-based, account maintenance, and overdraft services. Transaction-based fees, which include services such as ATM use fees, stop payment charges, statement rendering, and ACH fees, are recognized at the time the transaction is executed as that is the point in time the Company fulfills the customer’s request. Account maintenance fees, which relate primarily to monthly maintenance, are earned over the course of a month, representing the period over which the Company satisfies the performance obligation. Overdraft fees are recognized at the point in time that the overdraft occurs. Service charges on deposits are withdrawn from the customer’s account balance.

Merchant Processing Services and Debit Card Fees

: The Company earns interchange fees from cardholder transactions conducted through the payment networks. Interchange fees from cardholder transactions represent a percentage of the underlying transaction value and are recognized daily, concurrently with the transaction processing services provided to the cardholder.

Trust Fees

: The Company earns trust fees from its contracts with customers to manage assets for investment or custody services. These fees are primarily earned over time as the Company provides the contracted monthly or quarterly services and are generally assessed based on a tiered scale of the market value of assets under management (AUM) at month-end. Other related services provided, which are based on a fixed fee schedule, are recognized when the services are rendered.

Gains/Losses on Sales of OREO

: The Company records a gain or loss from the sale of OREO when control of the property transfers to the buyer, which generally occurs at the time of an executed deed. The Company does

not

finance the sale of OREO.

The Company adopted the ASU on

January 1, 2018

and

no

cumulative adjustment was required.

FASB ASU

2016

-

01

,

Financial Instruments – Overall (Subtopic

825

-

10

): Recognition and Measurement of Financial Assets and Financial Liabilities,

was issued

January 2016.

The ASU addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. Most notably, the ASU changes the income statement impact of equity investments held by the Company and the requirement for the Company to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes (Note

9

).

The Company was required to adopt the ASU provisions on

January 1, 2018,

and for those equity securities with readily determinable fair values, the Company elected the retrospective transition approach with a cumulative effect adjustment to the balance sheet and for those equity securities that do

not

have readily determinable fair values, the Company elected the prospective transition approach. The impact of the adoption of this accounting standard on the Company’s consolidated financial statements will be subject to the price volatility of the equity investments. As a result of implementing the ASU provisions, effective

January 1, 2018,

the Company recorded a cumulative effect adjustment to retained earnings of

$142

thousand.

FASB ASU

2018

-

02

,

Income Statement – Reporting Comprehensive Income (Topic

220

): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income,

was issued

February 2018.

The ASU eliminates the stranded tax effects resulting from the Tax Cuts and Jobs Act by allowing a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. The Company early adopted the provisions of the ASU effective

January 1, 2018,

by reclassifying the Company’s

$3,625

thousand stranded tax effect.

Recently Issued Accounting Standards

FASB ASU

2016

-

02,

Leases (Topic

842

),

was issued

February 25, 2016.

The provisions of the new standard require lessees to recognize most leases on-balance sheet, increasing reported assets and liabilities. Lessor accounting remains substantially similar to current U.S. GAAP.

The Company will be required to adopt the ASU provisions

January 1, 2019,

and plans to elect the modified retrospective transition approach. Management is evaluating the impact that the ASU will have on the Company’s financial statements. As of

December 31, 2017,

the Company leased

58

of its operating facilities; the remaining minimum lease payments were

$17.5

million. The Company does

not

expect a material change in noninterest expenses upon adoption of the new standard.

FASB ASU

2016

-

13,

Financial Instruments – Credit Losses (Topic

326

): Measurement of Credit Losses on Financial Instruments,

was issued on

June 16, 2016.

The ASU significantly changes estimates for credit losses related to financial assets measured at amortized cost and certain other contracts. For estimating credit losses, the FASB is replacing the incurred loss model with the current expected credit loss (CECL) model, which will accelerate recognition of credit losses. Additionally, credit losses relating to debt securities available-for-sale will be recorded through an allowance for credit losses under the new standard. The Company will also be required to provide additional disclosures related to the financial assets within the scope of the new standard.

The Company will be required to adopt the ASU provisions on

January 1, 2020.

Management is evaluating the impact that the ASU will have on the Company’s consolidated financial statements. The ultimate adjustment to the allowance for loan losses will be accomplished through an offsetting after-tax adjustment to shareholders’ equity. Economic conditions and the composition of the Company’s loan portfolio at the time of adoption will influence the extent of the adopting accounting adjustment.

FASB ASU

2017

-

08

,

Receivables – Non-Refundable Fees and Other Costs (Subtopic

310

-

20

): Premium Amortization on Purchased Callable Debt Securities

, was issued

March 2017.

The ASU will shorten the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date. The amendments do

not

require an accounting change for securities held at a discount; the discount continues to be amortized to maturity.

The Company will be required to adopt the ASU provisions on

January 1, 2019.

Management is evaluating the impact the ASU will have on the Company’s financial statements.

FASB ASU

2017

-

12

,

Derivatives and Hedging (Topic

815

): Targeted Improvements to Accounting for Hedging Activities

, was issued

August 2017.

The ASU will expand and refine hedge accounting for both nonfinancial and financial risk components and align the recognition and presentation of the effects of the hedging instrument and the hedged item in the financial statements. The ASU also provides for a

one

-time reclassification of prepayable assets from held-to-maturity (HTM) to available for sale (AFS) regardless of derivative use.

The Company will be required to adopt the ASU provisions

January 1, 2019.

The Company does

not

currently engage in trading activities or use derivative instruments to control interest rate risk, even though such activities

may

be permitted with the approval of the Company’s Board of Directors. However, the Company is currently evaluating the prepayable assets in the HTM portfolio to determine if a

one

-time reclassification of prepayable assets from HTM to the AFS will occur upon implementation.

XML

Note 3 - Investment Securities

3 Months Ended

Mar. 31, 2018

Notes to Financial Statements

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

Note

3:

Investment Securities

Effective

January 1, 2018,

upon adoption of ASU

2016

-

01,

equity securities included in the Company’s available for sale portfolio of

$1,800

thousand were reclassified to equity securities. The reclassification of equity securities resulted in recording a cumulative effect adjustment to retained earnings of

$142

thousand, net of tax.

At

March 31, 2018,

the market value of equity securities was

$1,764

thousand. During the

three

months ended

March 31, 2018,

the Company recognized gross unrealized holding losses of

$36

thousand in earnings.

An analysis of the amortized cost and fair value by major categories of debt securities available for sale, which are carried at fair value with net unrealized gains (losses) reported on an after-tax basis as a component of cumulative other comprehensive income, and debt securities held to maturity, which are carried at amortized cost, follows:

			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gains		Losses			Value
At March 31, 2018	(In thousands)
Debt securities available for sale
Securities of U.S. Government sponsored entities	$	122,291	$	1	$	(4,345	)	$	117,947
Agency residential mortgage-backed securities (MBS)		879,824		500		(32,684	)		847,640
Non-agency residential MBS		138		1		-			139
Agency commercial MBS		2,229		-		(39	)		2,190
Securities of U.S. Government entities		1,526		-		(6	)		1,520
Obligations of states and political subdivisions		181,386		2,910		(3,661	)		180,635
Corporate securities		1,226,267		523		(24,891	)		1,201,899
Total debt securities available for sale		2,413,661		3,935		(65,626	)		2,351,970
Debt securities held to maturity
Agency residential MBS		520,105		325		(16,728	)		503,702
Non-agency residential MBS		4,179		77		-			4,256
Agency commercial MBS		1,902		-		(9	)		1,893
Obligations of states and political subdivisions		588,101		4,419		(3,476	)		589,044
Total debt securities held to maturity		1,114,287		4,821		(20,213	)		1,098,895
Total	$	3,527,948	$	8,756	$	(85,839	)	$	3,450,865

			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gains		Losses			Value
At December 31, 2017	(In thousands)
Debt securities available for sale
Securities of U.S. Government sponsored entities	$	122,285	$	1	$	(2,967	)	$	119,319
Agency residential MBS		787,679		522		(20,495	)		767,706
Non-agency residential MBS		153		1		-			154
Agency commercial MBS		2,244		-		(25	)		2,219
Securities of U.S. Government entities		1,612		-		(22	)		1,590
Obligations of states and political subdivisions		182,907		3,796		(1,482	)		185,221
Corporate securities		1,123,671		1,104		(9,277	)		1,115,498
Total debt securities available for sale		2,220,551		5,424		(34,268	)		2,191,707
Debt securities held to maturity
Agency residential MBS		545,883		606		(9,850	)		536,639
Non-agency residential MBS		4,462		70		-			4,532
Agency commercial MBS		9,041		-		(66	)		8,975
Obligations of states and political subdivisions		599,478		7,736		(2,018	)		605,196
Total debt securities held to maturity		1,158,864		8,412		(11,934	)		1,155,342
Total	$	3,379,415	$	13,836	$	(46,202	)	$	3,347,049

The amortized cost and fair value of

debt

securities by contractual maturity are shown in the following table s at the dates indicated:

	At March 31, 2018
	Debt Securities Available				Debt Securities Held
	for Sale				to Maturity
	Amortized		Fair		Amortized		Fair
	Cost		Value		Cost		Value
	(In thousands)
Maturity in years:
1 year or less	$	164,450	$	162,099	$	67,865	$	68,636
Over 1 to 5 years		1,098,360		1,075,777		248,126		247,858
Over 5 to 10 years		225,690		223,481		269,159		269,527
Over 10 years		42,970		40,644		2,951		3,023
Subtotal		1,531,470		1,502,001		588,101		589,044
MBS		882,191		849,969		526,186		509,851
Total	$	2,413,661	$	2,351,970	$	1,114,287	$	1,098,895

	At December 31, 2017
	Debt Securities Available				Debt Securities Held
	for Sale				to Maturity
	Amortized		Fair		Amortized		Fair
	Cost		Value		Cost		Value
	(In thousands)
Maturity in years:
1 year or less	$	193,337	$	193,385	$	50,295	$	51,105
Over 1 to 5 years		1,031,807		1,023,047		269,050		269,471
Over 5 to 10 years		159,266		160,042		277,170		281,546
Over 10 years		46,065		45,154		2,963		3,074
Subtotal		1,430,475		1,421,628		599,478		605,196
MBS		790,076		770,079		559,386		550,146
Total	$	2,220,551	$	2,191,707	$	1,158,864	$	1,155,342

Expected maturities of mortgage-related securities can differ from contractual maturities because borrowers have the right to call or prepay obligations with or without call or prepayment penalties. In addition, such factors as prepayments and interest rates

may

affect the yield on the carrying value of mortgage-related securities. At

March 31, 2018

and

December 31, 2017,

the Company had

no

high-risk collateralized mortgage obligations as defined by regulatory guidelines.

An analysis of the gross unrealized losses of the debt securities available for sale portfolio follows:

	Debt Securities Available for Sale
	At March 31, 2018
	No. of		Less than 12 months					No. of		12 months or longer					No. of		Total
	Investment				Unrealized			Investment				Unrealized			Investment				Unrealized
	Positions		Fair Value		Losses			Positions		Fair Value		Losses			Positions		Fair Value		Losses
	($ in thousands)
Securities of U.S. Government sponsored entities		2	$	1,977	$	(12	)		8	$	115,889	$	(4,333	)		10	$	117,866	$	(4,345	)
Agency residential MBS		11		280,804		(6,163	)		52		492,453		(26,521	)		63		773,257		(32,684	)
Agency commercial MBS		2		2,190		(39	)		-		-		-			2		2,190		(39	)
Securities of U.S. Government entities		-		-		-			3		1,520		(6	)		3		1,520		(6	)
Obligations of states and political subdivisions		57		31,091		(636	)		35		49,993		(3,025	)		92		81,084		(3,661	)
Corporate securities		82		781,714		(16,548	)		34		258,551		(8,343	)		116		1,040,265		(24,891	)
Total		154	$	1,097,776	$	(23,398	)		132	$	918,406	$	(42,228	)		286	$	2,016,182	$	(65,626	)

An analysis of gross unrecognized losses of the debt securities held to maturity portfolio follows:

	Debt Securities Held to Maturity
	At March 31, 2018
	No. of		Less than 12 months					No. of		12 months or longer					No. of		Total
	Investment				Unrecognized			Investment				Unrecognized			Investment				Unrecognized
	Positions		Fair Value		Losses			Positions		Fair Value		Losses			Positions		Fair Value		Losses
	($ in thousands)
Agency residential MBS		23	$	33,919	$	(578	)		67	$	451,597	$	(16,150	)		90	$	485,516	$	(16,728	)
Agency commercial MBS		1		1,893		(9	)		-		-		-			1		1,893		(9	)
Obligations of states and political subdivisions		266		257,849		(1,557	)		58		57,422		(1,919	)		324		315,271		(3,476	)
Total		290	$	293,661	$	(2,144	)		125	$	509,019	$	(18,069	)		415	$	802,680	$	(20,213	)

The unrealized losses on the Company’s debt securities were caused by market conditions for these types of investments, particularly changes in risk-free interest rates. The Company evaluates debt securities on a quarterly basis including changes in security ratings issued by rating agencies, changes in the financial condition of the issuer, and, for mortgage-backed and asset-backed securities, delinquency and loss information with respect to the underlying collateral, changes in the levels of subordination for the Company’s particular position within the repayment structure and remaining credit enhancement as compared to expected credit losses of the security. Substantially all of these securities continue to be investment grade rated by a major rating agency. In addition to monitoring credit rating agency evaluations, Management performs its own evaluations regarding the credit worthiness of the issuer or the securitized assets underlying asset backed securities.

The Company does

not

intend to sell any debt securities and has concluded that it is more likely than

not

that it will

not

be required to sell the debt securities prior to recovery of the amortized cost basis. Therefore, the Company does

not

consider these debt securities to be other-than-temporarily impaired as of

March 31, 2018.

The fair values of the debt securities could decline in the future if the general economy deteriorates, inflation increases, credit ratings decline, the issuer’s financial condition deteriorates, or the liquidity for debt securities declines. As a result, other than temporary impairments

may

occur in the future.

As of

March 31, 2018

and

December 31, 2017,

the Company had debt securities pledged to secure public deposits and short-term borrowed funds of $

696,058

 thousand and

$715,774

thousand, respectively.

An analysis of gross unrealized losses  of debt securities available for sale follows:

	Debt Securities Available for Sale
	At December 31, 2017
	No. of		Less than 12 months					No. of		12 months or longer					No. of		Total
	Investment				Unrealized			Investment				Unrealized			Investment				Unrealized
	Positions		Fair Value		Losses			Positions		Fair Value		Losses			Positions		Fair Value		Losses
	($ in thousands)
Securities of U.S. Government sponsored entities		1	$	996	$	(2	)		8	$	117,252	$	(2,965	)		9	$	118,248	$	(2,967	)
Agency residential MBS		7		238,554		(1,501	)		51		516,711		(18,994	)		58		755,265		(20,495	)
Non-agency residential MBS		1		1		-			-		-		-			1		1		-
Agency commercial MBS		2		2,219		(25	)		-		-		-			2		2,219		(25	)
Securities of U.S. Government entities		-		-		-			3		1,590		(22	)		3		1,590		(22	)
Obligations of states and political subdivisions		50		21,453		(228	)		35		52,071		(1,254	)		85		73,524		(1,482	)
Corporate securities		64		571,112		(4,047	)		38		282,924		(5,230	)		102		854,036		(9,277	)
Total		125	$	834,335	$	(5,803	)		135	$	970,548	$	(28,465	)		260	$	1,804,883	$	(34,268	)

An analysis of gross unrecognized losses of the debt securities held to maturity portfolio follows:

	Debt Securities Held to Maturity
	At December 31, 2017
	No. of		Less than 12 months					No. of		12 months or longer					No. of		Total
	Investment				Unrecognized			Investment				Unrecognized			Investment				Unrecognized
	Positions		Fair Value		Losses			Positions		Fair Value		Losses			Positions		Fair Value		Losses
	($ in thousands)
Agency residential MBS		15	$	30,218	$	(201	)		65	$	479,775	$	(9,649	)		80	$	509,993	$	(9,850	)
Agency commercial MBS		1		1,913		(4	)		1		7,062		(62	)		2		8,975		(66	)
Obligations of states and political subdivisions		146		131,032		(553	)		59		58,979		(1,465	)		205		190,011		(2,018	)
Total		162	$	163,163	$	(758	)		125	$	545,816	$	(11,176	)		287	$	708,979	$	(11,934	)

The following table provides information about the amount of interest income earned on investment securities which is fully taxable and which is exempt from regular federal income tax:

	For the Three Months
	Ended March 31,
	2018		2017
	(In thousands)
Taxable	$	14,935	$	12,147
Tax-exempt from regular federal income tax		4,875		5,397
Total interest income from investment securities	$	19,810	$	17,544

XML

Note 4 - Loans and Allowance for Loan Losses

3 Months Ended

Mar. 31, 2018

Notes to Financial Statements

Loans, Notes, Trade and Other Receivables Disclosure [Text Block]

Note

4:

Loans and Allowance for Loan Losses

A summary of the major categories of loans outstanding is shown in the following table at the dates indicated.

	At March 31,		At December 31,
	2018		2017
	(In thousands)
Commercial	$	306,978	$	335,996
Commercial Real Estate		553,318		568,584
Construction		2,941		5,649
Residential Real Estate		59,484		65,183
Consumer Installment & Other		305,863		312,570
Total	$	1,228,584	$	1,287,982

Total loans outstanding reported above include loans purchased from the FDIC of $

75,476

 

thousand and

$83,478

thousand at

March 31, 2018

and

December 31, 2017,

respectively. Loans purchased from the FDIC were separately reported in prior periods and have been reclassified into their respective categories in the current presentation.

Changes in the accretable yield for purchased loans were as follows:

	For the			For the
	Three Months Ended			Year Ended
	March 31, 2018			December 31, 2017
Accretable yield:	(In thousands)
Balance at the beginning of the period	$	738		$	1,237
Reclassification from nonaccretable difference		313			1,852
Accretion		(452	)		(2,351	)
Balance at the end of the period	$	599		$	738
Accretion	$	(452	)	$	(2,351	)
Change in FDIC indemnification		1			192
(Increase) in interest income	$	(451	)	$	(2,159	)

The following summarizes activity in the allowance for loan losses:

	Allowance for Loan Losses
	For the Three Months Ended March 31, 2018
													Consumer
				Commercial						Residential			Installment
	Commercial			Real Estate			Construction			Real Estate			and Other			Unallocated		Total
	(In thousands)
Allowance for loan losses:
Balance at beginning of period	$	7,746		$	3,849		$	335		$	995		$	6,418		$	3,666	$	23,009
Additions:
(Reversal) provision		(17	)		(25	)		(160	)		(87	)		37			252		-
Deductions:
Chargeoffs		(41	)		-			-			-			(1,365	)		-		(1,406	)
Recoveries		829			-			-			-			649			-		1,478
Net loan recoveries (losses)		788			-			-			-			(716	)		-		72
Total allowance for loan losses	$	8,517		$	3,824		$	175		$	908		$	5,739		$	3,918	$	23,081

	Allowance for Loan Losses
	For the Three Months Ended March 31, 2017
												Consumer
				Commercial					Residential			Installment
	Commercial			Real Estate		Construction			Real Estate			and Other			Unallocated			Total
	(In thousands)
Allowance for loan losses:
Balance at beginning of period	$	8,327		$	3,330	$	152		$	1,330		$	7,980		$	4,835		$	25,954
Additions:
Provision (reversal)		209			182		(40	)		(116	)		106			(341	)		-
Deductions:
Chargeoffs		(103	)		-		-			-			(1,739	)		-			(1,842	)
Recoveries		160			10		-			-			637			-			807
Net loan recoveries (losses)		57			10		-			-			(1,102	)		-			(1,035	)
Total allowance for loan losses	$	8,593		$	3,522	$	112		$	1,214		$	6,984		$	4,494		$	24,919

The allowance for loan losses and recorded investment in loans evaluated for impairment were as follows:

	Allowance for Loan Losses and Recorded Investment in Loans Evaluated for Impairment
	At March 31, 2018
	Commercial		Commercial Real Estate		Construction		Residential Real Estate		Consumer Installment and Other		Unallocated		Total
	(In thousands)
Allowance for loan losses:
Individually evaluated for impairment	$	4,777	$	214	$	-	$	-	$	-	$	-	$	4,991
Collectively evaluated for impairment		3,740		3,610		175		908		5,739		3,918		18,090
Purchased loans with evidence of credit deterioration		-		-		-		-		-		-		-
Total	$	8,517	$	3,824	$	175	$	908	$	5,739	$	3,918	$	23,081
Carrying value of loans:
Individually evaluated for impairment	$	10,513	$	11,393	$	-	$	206	$	-	$	-	$	22,112
Collectively evaluated for impairment		296,432		541,327		2,941		59,278		305,705		-		1,205,683
Purchased loans with evidence of credit deterioration		33		598		-		-		158		-		789
Total	$	306,978	$	553,318	$	2,941	$	59,484	$	305,863	$	-	$	1,228,584

	Allowance for Loan Losses and Recorded Investment in Loans Evaluated for Impairment
	At December 31, 2017
	Commercial		Commercial Real Estate		Construction		Residential Real Estate		Consumer Installment and Other		Unallocated		Total
	(In thousands)
Allowance for loan losses:
Individually evaluated for impairment	$	4,814	$	171	$	-	$	-	$	-	$	-	$	4,985
Collectively evaluated for impairment		2,932		3,678		335		995		6,418		3,666		18,024
Purchased loans with evidence of credit deterioration		-		-		-		-		-		-		-
Total	$	7,746	$	3,849	$	335	$	995	$	6,418	$	3,666	$	23,009
Carrying value of loans:
Individually evaluated for impairment	$	10,675	$	14,234	$	-	$	208	$	-	$	-	$	25,117
Collectively evaluated for impairment		325,291		553,769		5,649		64,975		312,406		-		1,262,090
Purchased loans with evidence of credit deterioration		30		581		-		-		164		-		775
Total	$	335,996	$	568,584	$	5,649	$	65,183	$	312,570	$	-	$	1,287,982

The Bank’s customers are small businesses, professionals and consumers. Given the scale of these borrowers, corporate credit rating agencies do

not

evaluate the borrowers’ financial condition. The Bank maintains a Loan Review Department which reports directly to Audit Committee of the Board of Directors. The Loan Review Department performs independent evaluations of loans and validates management assigned credit risk grades on evaluated loans using grading standards employed by bank regulatory agencies. Loans judged to carry lower-risk attributes are assigned a “pass” grade, with a minimal likelihood of loss. Loans judged to carry higher-risk attributes are referred to as “classified loans,” and are further disaggregated, with increasing expectations for loss recognition, as “substandard,” “doubtful,” and “loss.” Loan Review Department evaluations occur every calendar quarter. If the Bank becomes aware of deterioration in a borrower’s performance or financial condition between Loan Review Department examinations, assigned risk grades are re-evaluated promptly. Credit risk grades assigned by management and validated by the Loan Review Department are subject to review by the Bank’s regulatory authorities during regulatory examinations.

The following summarizes the credit risk profile by internally assigned grade:

	Credit Risk Profile by Internally Assigned Grade
	At March 31, 2018
	Commercial		Commercial Real Estate		Construction		Residential Real Estate		Consumer Installment and Other		Total
	(In thousands)
Grade:
Pass	$	283,666	$	547,740	$	2,941	$	59,202	$	303,836	$	1,197,385
Substandard		23,312		5,578		-		282		1,523		30,695
Doubtful		-		-		-		-		177		177
Loss		-		-		-		-		327		327
Total	$	306,978	$	553,318	$	2,941	$	59,484	$	305,863	$	1,228,584

Credit risk profile reflects internally assigned grade of purchased covered loans without regard to FDIC indemnification.

	Credit Risk Profile by Internally Assigned Grade
	At December 31, 2017
	Commercial		Commercial Real Estate		Construction		Residential Real Estate		Consumer Installment and Other		Total
	(In thousands)
Grade:
Pass	$	324,185	$	548,853	$	5,649	$	62,253	$	310,429	$	1,251,369
Substandard		11,811		19,731		-		2,930		1,370		35,842
Doubtful		-		-		-		-		1		1
Loss		-		-		-		-		770		770
Total	$	335,996	$	568,584	$	5,649	$	65,183	$	312,570	$	1,287,982

Credit risk profile reflects internally assigned grade of purchased covered loans without regard to FDIC indemnification.

The following tables summarize loans by delinquency and nonaccrual status:

	Summary of Loans by Delinquency and Nonaccrual Status
	At March 31, 2018
	Current and Accruing		30-59 Days Past Due and Accruing		60-89 Days Past Due and Accruing		Past Due 90 Days or More and Accruing		Nonaccrual		Total Loans
	(In thousands)
Commercial	$	306,396	$	227	$	84	$	-	$	271	$	306,978
Commercial real estate		544,476		2,809		360		-		5,673		553,318
Construction		2,941		-		-		-		-		2,941
Residential real estate		59,184		300		-		-		-		59,484
Consumer installment and other		302,214		2,667		531		255		196		305,863
Total	$	1,215,211	$	6,003	$	975	$	255	$	6,140	$	1,228,584

	Summary of Loans by Delinquency and Nonaccrual Status
	At December 31, 2017
	Current and Accruing		30-59 Days Past Due and Accruing		60-89 Days Past Due and Accruing		Past Due 90 Days or More and Accruing		Nonaccrual		Total Loans
	(In thousands)
Commercial	$	334,908	$	627	$	164	$	-	$	297	$	335,996
Commercial real estate		561,883		1,143		125		-		5,433		568,584
Construction		5,649		-		-		-		-		5,649
Residential real estate		65,183		-		-		-		-		65,183
Consumer installment and other		307,445		3,321		1,077		531		196		312,570
Total	$	1,275,068	$	5,091	$	1,366	$	531	$	5,926	$	1,287,982

There were

no

commitments to lend additional funds to borrowers whose loans were on nonaccrual status at

March 31, 2018

and

December 31, 2017.

The following summarizes impaired loans:

	Impaired Loans
	At March 31,						At December 31,
	2018						2017
			Unpaid						Unpaid
	Recorded		Principal		Related		Recorded		Principal		Related
	Investment		Balance		Allowance		Investment		Balance		Allowance
	(In thousands)
With no related allowance recorded:
Commercial	$	1,183	$	1,227	$	-	$	1,212	$	1,271	$	-
Commercial real estate		9,766		11,752		-		13,169		14,985		-
Residential real estate		206		237		-		208		239		-
Consumer installment and other		354		461		-		360		466		-
Total with no related allowance recorded		11,509		13,677		-		14,949		16,961		-
With an allowance recorded:
Commercial		9,634		9,634		4,777		9,764		9,764		4,814
Commercial real estate		2,784		2,787		214		1,790		1,792		171
Total with an allowance recorded		12,418		12,421		4,991		11,554		11,556		4,985
Total	$	23,927	$	26,098	$	4,991	$	26,503	$	28,517	$	4,985

Impaired loans include troubled debt restructured loans. Impaired loans at

March 31, 2018,

included $

9,550

thousand of restructured loans, $

4,110

thousand of which were on nonaccrual status. Impaired loans include troubled debt restructured loans. Impaired loans at

December 31, 2017,

included

$12,081

thousand of restructured loans,

$4,285

thousand of which were on nonaccrual status.

	Impaired Loans
	For the Three Months Ended March 31,
	2018				2017
	Average		Recognized		Average		Recognized
	Recorded		Interest		Recorded		Interest
	Investment		Income		Investment		Income
	(In thousands)
Commercial	$	10,897	$	175	$	11,292	$	118
Commercial real estate		13,755		215		14,500		237
Construction		-		-		-		-
Residential real estate		207		4		748		4
Consumer installment and other		357		3		543		7
Total	$	25,216	$	397	$	27,083	$	366

The following tables provide information on troubled debt restructurings:

	Troubled Debt Restructurings
	At March 31, 2018
							Period-End
							Individual
	Number of		Pre-Modification		Period-End		Impairment
	Contracts		Carrying Value		Carrying Value		Allowance
	($ in thousands)
Commercial		7	$	2,393	$	1,043	$	39
Commercial real estate		9		9,537		8,301		-
Residential real estate		1		241		206		-
Total		17	$	12,171	$	9,550	$	39

	Troubled Debt Restructurings
	At December 31, 2017
							Period-End
							Individual
	Number of		Pre-Modification		Period-End		Impairment
	Contracts		Carrying Value		Carrying Value		Allowance
	($ in thousands)
Commercial		7	$	2,393	$	1,085	$	43
Commercial real estate		10		11,528		10,788		-
Residential real estate		1		241		208		-
Total		18	$	14,162	$	12,081	$	43

During the

three

months ended

March 31, 2018,

the Company did

not

modify any loans that were considered troubled debt restructurings. During the

three

months ended

March 31, 2017,

the Company modified

two

loans with a carrying value of

$273

thousand that were considered troubled debt restructurings. The

two

concessions granted in the

three

months ended

March 31, 2017

consisted of modifications of payment terms to extend the maturity date to allow for deferred principal repayment and under-market terms. There were

no

chargeoffs related to troubled debt restructurings made during the

three

months ended

March 31, 2018

and

March 31, 2017.

During the

three

months ended

March 31, 2018

and

2017,

no

troubled debt restructured loans defaulted within

12

months of the modification date. A troubled debt restructuring is considered to be in default when payments are

ninety

days or more past due.

There were

no

loans restricted due to collateral requirements at

March 31, 2018

and

December 31, 2017.

There were

no

loans held for sale at

March 31, 2018

and

December 31, 2017.

At

March 31, 2018

and

December 31, 2017,

the Company held total other real estate owned (OREO) of $

1,376

thousand net of reserve of $

1,905

thousand and

$1,426

thousand net of reserve of

$1,905

thousand, respectively, of which $

-

0

-

  thousand was foreclosed residential real estate properties or covered OREO at both dates, respectively. The amount of consumer mortgage loans outstanding secured by residential real estate properties for which formal foreclosure proceedings were in process was

$196

thousand at

March 31, 2018

and

December 31, 2017.

XML

Note 5 - Concentration of Credit Risk

3 Months Ended

Mar. 31, 2018

Notes to Financial Statements

Concentration Risk Disclosure [Text Block]

Note

5:

Concentration of Credit Risk

Under the California Financial Code, credit extended to any

one

person owing to a commercial bank at any

one

time shall

not

exceed the following limitations: (a) unsecured loans shall

not

exceed

15

percent of the sum of the shareholders' equity, allowance for loan losses, capital notes, and debentures of the bank, or (b) secured and unsecured loans in all shall

not

exceed

25

percent of the sum of the shareholders' equity, allowance for loan losses, capital notes, and debentures of the bank. At

March 31, 2018,

Westamerica Bank did

not

have credit extended to any

one

entity exceeding these limits. At

March 31, 2018,

Westamerica Bank had

36

lending relationships each with aggregate amounts exceeding

$5

million. The Company has significant credit arrangements that are secured by real estate collateral. In addition to real estate loans outstanding as disclosed in Note

4,

the Company had loan commitments related to real estate loans of $

48,623

thousand and

$53,874

thousand at

March 31, 2018

and

December 31, 2017,

respectively. The Company requires collateral on all real estate loans with loan-to-value ratios at origination generally

no

greater than

75%

on commercial real estate loans and

no

greater than

80%

on residential real estate loans. At

March 31, 2018,

Westamerica Bank held corporate bonds in

72

issuing entities that exceeded

$5

million for each issuer.

XML

Note 6 - Other Assets

3 Months Ended

Mar. 31, 2018

Notes to Financial Statements

Other Assets Disclosure [Text Block]

Note

6:

Other Assets

Other assets consisted of the following:

	At March 31,		At December 31,
	2018		2017
	(In thousands)
Equity securities without readily determinable fair values:
Federal Reserve Bank stock (1)	$	14,069	$	14,069
Other investments		158		158
Total equity securities without readily determinable fair values		14,227		14,227
Life insurance cash surrender value		54,742		54,101
Net deferred tax asset		42,842		33,112
Limited partnership investments		9,519		10,119
Interest receivable		22,538		23,557
Prepaid assets		4,532		4,906
Other assets		11,386		18,428
Total other assets	$	159,786	$	158,450

( 1 ) A bank applying for membership in the Federal Reserve System is required to subscribe to stock in the Federal Reserve Bank (FRB) in its district in a sum equal to six percent of the bank’s paid-up capital stock and surplus. One-half of the amount of the bank's subscription shall be paid to the FRB and the remaining half will be subject to call when deemed necessary by the Board of Governors of the Federal Reserve System.

The Company invests in flow-through limited liability entities that manage or invest in affordable housing projects that qualify for low-income housing tax credits. At

March 31, 2018,

this investment totaled $

9,519

thousand and $

2,299

  thousand of this amount represents outstanding equity capital commitments that are included in other liabilities. At

December 31, 2017,

this investment totaled

$10,119

thousand and

$2,299

  thousand of this amount represented outstanding equity capital commitments. At

March 31, 2018,

the

$2,299

thousand of outstanding equity capital commitments are expected to be paid as follows,

$722

thousand in

2020,

$131

thousand in

2023,

$90

thousand in

2024

and

$1,356

thousand in

2025

or thereafter.

The amounts recognized in net income for these investments include:

	For the Three Months Ended
	March 31,
	2018		2017
	(In thousands)
Investment loss included in pre-tax income	$	600	$	450
Tax credits recognized in provision for income taxes		336		463

XML

Note 7 - Goodwill and Identifiable Intangible Assets

3 Months Ended

Mar. 31, 2018

Notes to Financial Statements

Goodwill and Intangible Assets Disclosure [Text Block]

Note

7:

Goodwill and Identifiable Intangible Assets

The Company has recorded goodwill and other identifiable intangibles associated with purchase business combinations. Goodwill is

not

amortized, but is evaluated for impairment at least annually. The Company did

not

recognize impairment during the

three

months ended

March 31, 2018

and year ended

December 31, 2017.

Identifiable intangibles are amortized to their estimated residual values over their expected useful lives. Such lives and residual values are also periodically reassessed to determine if any amortization period adjustments are indicated. During the

three

months ended

March 31, 2018

and year ended

December 31, 2017

no

such adjustments were recorded.

The carrying values of goodwill were:

	At March 31, 2018		At December 31, 2017
	(In thousands)
Goodwill	$	121,673	$	121,673

The gross carrying amount of identifiable intangible assets and accumulated amortization was:

	At March 31,					At December 31,
	2018					2017
	Gross					Gross
	Carrying		Accumulated			Carrying		Accumulated
	Amount		Amortization			Amount		Amortization
	(In thousands)
Core Deposit Intangibles	$	56,808	$	(53,528	)	$	56,808	$	(52,987	)
Merchant Draft Processing Intangible		10,300		(10,300	)		10,300		(10,271	)
Total Identifiable Intangible Assets	$	67,108	$	(63,828	)	$	67,108	$	(63,258	)

As of

March 31, 2018,

the current period and estimated future amortization expense for identifiable intangible assets was:

			Merchant
	Core		Draft
	Deposit		Processing
	Intangibles		Intangible		Total
	(In thousands)
For the Three Months ended March 31, 2018 (actual)	$	541	$	29	$	570
Estimate for the remainder of year ending December 31, 2018		1,351		-		1,351
Estimate for year ending December 31, 2019		538		-		538
2020		287		-		287
2021		269		-		269
2022		252		-		252
2023		236		-		236

XML

Note 8 - Deposits and Borrowed Funds

3 Months Ended

Mar. 31, 2018

Notes to Financial Statements

Deposits and Borrowed Funds [Text Block]

Note

8:

Deposits and Borrowed Funds

The following table provides additional detail regarding deposits.

	Deposits
	At March 31,		At December 31,
	2018		2017
	(In thousands)
Noninterest-bearing	$	2,179,157	$	2,197,526
Interest-bearing:
Transaction		924,081		904,245
Savings		1,540,192		1,494,024
Time deposits less than $100 thousand		114,301		117,848
Time deposits $100 thousand through $250 thousand		74,436		76,578
Time deposits more than $250 thousand		35,700		37,392
Total deposits	$	4,867,867	$	4,827,613

Demand deposit overdrafts of $

788

 thousand and

$2,786

 thousand were included as loan balances at

March 31, 2018

and

December 31, 2017,

respectively. Interest expense for aggregate time deposits with individual account balances in excess of

$100

thousand was $

97

thousand in the

three

months ended

March 31, 2018

and

$106

thousand in the

three

months ended

March 31, 2017.

The following table provides additional detail regarding short-term borrowed funds.

	Repurchase Agreements (Sweep) Accounted for as Secured Borrowings
	Remaining Contractual Maturity of the Agreements
	Overnight and Continuous
	At March 31, 2018		At December 31, 2017
Repurchase agreements:	(In thousands)
Collateral securing borrowings:
Securities of U.S. Government sponsored entities	$	73,165	$	74,173
Agency residential MBS		64,266		58,251
Corporate securities		104,210		105,113
Total collateral carrying value	$	241,641	$	237,537
Total short-term borrowed funds	$	65,356	$	58,471

XML

Note 9 - Fair Value Measurements

3 Months Ended

Mar. 31, 2018

Notes to Financial Statements

Fair Value Disclosures [Text Block]

Note

9:

Fair Value Measurements

The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. Equity securities and available for sale debt securities are recorded at fair value on a recurring basis. Additionally, from time to time, the Company

may

be required to record at fair value other assets on a nonrecurring basis, such as other real estate owned, impaired loans, certain loans held for investment, debt securities held to maturity, and other assets. These nonrecurring fair value adjustments typically involve the lower-of-cost or fair-value accounting of individual assets.

In accordance with the Fair Value Measurement and Disclosure topic of the Codification, the Company bases its fair values on the price that would be received to sell an asset or paid to transfer a liability in the principal market or most advantageous market for an asset or liability in an orderly transaction between market participants on the measurement date under current market conditions. A fair value measurement reflects all of the assumptions that market participants would use in pricing the asset or liability, including assumptions about the risk inherent in a particular valuation technique, the effect of a restriction on the sale or use of an asset, and the risk of nonperformance.

The Company groups its assets and liabilities measured at fair value into a

three

-level hierarchy, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. When the valuation assumptions used to measure the fair value of the asset or liability are categorized within different levels of the fair value hierarchy, the asset or liability is categorized in its entirety within the lowest level of the hierarchy. These levels are:

Level

1

– Valuation is based upon quoted prices for identical instruments traded in active exchange markets, such as the New York Stock Exchange. Level

1

includes U.S. Treasury and equity securities, which are traded by dealers or brokers in active markets. Valuations are obtained from readily available pricing sources for market transactions involving identical assets or liabilities.

Level

2

– Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are

not

active, and model-based valuation techniques for which all significant assumptions are observable in the market. Level

2

includes mutual funds, federal agency securities, mortgage-backed securities, corporate securities, asset-backed securities, and municipal bonds.

Level

3

– Valuation is generated from model-based techniques that use significant assumptions

not

observable in the market. These unobservable assumptions reflect the Company’s estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of option pricing models, discounted cash flow models and similar techniques.

The Company relies on independent vendor pricing services to measure fair value for equity securities, debt securities available for sale and debt securities held to maturity. The Company employs

three

pricing services. To validate the pricing of these vendors, the Company compares vendors’ pricing for each of the securities for consistency; significant pricing differences, if any, are evaluated using all available independent quotes with the quote most closely reflecting the market generally used as the fair value estimate. In addition, the Company conducts “other than temporary impairment (OTTI)” analysis on a quarterly basis; debt securities selected for OTTI analysis include all debt securities at a market price below

95

percent of par value. As with any valuation technique used to estimate fair value, changes in underlying assumptions used could significantly affect the results of current and future values. Accordingly, these fair value estimates

may

not

be realized in an actual sale of the securities.

The Company regularly reviews the valuation techniques and assumptions used by its vendors and determines which valuation techniques are utilized based on observable market inputs for the type of securities being measured. The Company uses the information to determine the placement in the fair value hierarchy as level

1,

2

or

3.

When the Company changes its valuation assumptions for measuring financial assets and financial liabilities at fair value, either due to changes in current market conditions or other factors, or reevaluates the valuation techniques and assumptions used by its vendors, it

may

need to transfer those assets or liabilities to another level in the hierarchy based on the new information. The Company recognizes these transfers at the end of the reporting period that the transfers occur. For the

three

months ended

March 31, 2018

and year ended

December 31, 2017,

there were

no

transfers in to or out of levels

1,

2

or

3.

Assets Recorded at Fair Value on a Recurring Basis

The tables below present assets measured at fair value on a recurring basis on the dates indicated.

	At March 31, 2018
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(In thousands)
Equity securities
Mutual funds	$	1,764	$	-	$	1,764	$	-
Total equity securities		1,764		-		1,764		-
Debt securities available for sale
Securities of U.S. Government sponsored entities		117,947		-		117,947		-
Agency residential MBS		847,640		-		847,640		-
Non-agency residential MBS		139		-		139		-
Agency commercial MBS		2,190		-		2,190		-
Securities of U.S. Government entities		1,520		-		1,520		-
Obligations of states and political subdivisions		180,635		-		180,635		-
Corporate securities		1,201,899		-		1,201,899		-
Total debt securities available for sale		2,351,970		-		2,351,970		-
Total	$	2,353,734	$	-	$	2,353,734	$	-

	At December 31, 2017
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(In thousands)
Equity securities
Mutual funds	$	1,800	$	-	$	1,800	$	-
Total equity securities		1,800		-		1,800		-
Debt securities available for sale
Securities of U.S. Government sponsored entities		119,319		-		119,319		-
Agency residential MBS		767,706		-		767,706		-
Non-agency residential MBS		154		-		154		-
Agency commercial MBS		2,219		-		2,219		-
Securities of U.S. Government entities		1,590		-		1,590		-
Obligations of states and political subdivisions		185,221		-		185,221		-
Corporate securities		1,115,498		-		1,115,498		-
Total debt securities available for sale		2,191,707		-		2,191,707		-
Total	$	2,193,507	$	-	$	2,193,507	$	-

Assets Recorded at Fair Value on a Nonrecurring Basis

The Company

may

be required, from time to time, to measure certain assets at fair value on a nonrecurring basis in accordance with GAAP. These adjustments to fair value usually result from application of lower of cost or fair value accounting of individual assets. For assets measured at fair value on a nonrecurring basis that were recorded in the balance sheet at

March 31, 2018

and

December 31, 2017,

the following tables provide the level of valuation assumptions used to determine each adjustment and the carrying value of the related assets at period end.

									For the
									Three Months Ended
	At March 31, 2018								March 31, 2018
	Carrying Value		Level 1		Level 2		Level 3		Total Losses
	(In thousands)
Other real estate owned	$	1,376	$	-	$	-	$	1,376	$	-
Impaired loans:
Commercial		4,857		-		-		4,857		-
Commercial real estate		6,680		-		-		6,680		-
Total assets measured at fair value on a nonrecurring basis	$	12,913	$	-	$	-	$	12,913	$	-

									For the
									Year Ended
	At December 31, 2017								December 31, 2017
	Carrying Value		Level 1		Level 2		Level 3		Total Losses
	(In thousands)
Other real estate owned	$	1,426	$	-	$	-	$	1,426	$	(219	)
Impaired loans:
Commercial		4,950		-		-		4,950		-
Commercial real estate		5,904		-		-		5,904		-
Total assets measured at fair value on a nonrecurring basis	$	12,280	$	-	$	-	$	12,280	$	(219	)

Level

3

– Valuation is based upon present value of expected future cash flows, independent market prices, estimated liquidation values of loan collateral or appraised value of the collateral as determined by

third

-party independent appraisers, less

10%

for selling costs, generally. Level

3

includes other real estate owned that has been measured at fair value upon transfer to foreclosed assets and impaired loans collateralized by real property and other business asset collateral where a specific reserve has been established or a chargeoff has been recorded. Losses on other real estate owned represent losses recognized in earnings during the period subsequent to its initial classification as foreclosed assets. The unobservable inputs and qualitative information about the unobservable inputs are

not

presented as the inputs were

not

developed by the Company.

Disclosures about Fair Value of Financial Instruments

The following section describes the valuation methodologies used by the Company for estimating fair value of financial instruments

not

recorded at fair value in the balance sheet. The Company implemented the provisions of ASU

2016

-

01,

Financial Instruments – Overall: Recognition and Measurement of Financial Assets and Financial Liabilities

, effective

January 1, 2018.

The provisions require the Company to use the “exit price notion” when measuring the fair value of financial instruments for disclosure purposes.

Cash and Due from Banks

Cash and due from banks represent U.S. dollar denominated coin and currency, deposits at the Federal Reserve Bank and correspondent banks, and amounts being settled with other banks to complete the processing of customers’ daily transactions. Collectively, the Federal Reserve Bank and financial institutions operate in a market in which cash and due from banks transactions are processed continuously in significant daily volumes honoring the face value of the U.S. dollar.

Debt Securities Held to Maturity

The fair values of debt securities were estimated using quoted prices as described above for Level

2

valuation.

Loans

Loans are valued using the exit price notion. The Company uses a net present value of cash flows methodology that seeks to incorporate interest rate, credit, liquidity and prepayment risks in the fair market value estimation. Inputs to calculation include market rates for similarly offered products, market interest rate projections, credit spreads and prepayment assumptions.

Prior to adoption of ASU

2016

-

01,

loans were separated into

two

groups for valuation. Variable rate loans, except for those described below, which reprice frequently with changes in market rates were valued using historical cost. Fixed rate loans and variable rate loans that have reached their minimum contractual interest rates were valued by discounting the future cash flows expected to be received from the loans using current interest rates charged on loans with similar characteristics. Additionally, the allowance for loan losses of

$23,009

thousand at

December 31, 2017

was applied against the estimated fair values to recognize estimated future defaults of contractual cash flows.

Deposit Liabilities

Deposits with

no

stated maturity such as checking accounts, savings accounts and money market accounts can be readily converted to cash or used to settle transactions at face value through the broad financial system operated by the Federal Reserve Banks and financial institutions. The fair value of deposits with

no

stated maturity is equal to the amount payable on demand. The fair values of time deposits were estimated by using net present value of cash flows methodology that seeks to incorporate interest rate, credit, liquidity and prepayment risks in the fair market value estimation. Inputs to calculation include market rates for similarly offered products, market interest rate projections, credit spreads and prepayment assumptions. The resulting cash flows are compared against alternative funding sources.

Prior to adoption of ASU

2016

-

01,

the fair value of time deposits were estimated by discounting estimated future contractual cash flows using current market rates for financial instruments with similar characteristics.

Short-Term Borrowed Funds

The carrying amount of securities sold under agreement to repurchase and other short-term borrowed funds approximate fair value due to the relatively short period of time between their origination and their expected realization.

The tables below are a summary of fair value estimates for financial instruments and the level of the fair value hierarchy within which the fair value measurements are categorized, excluding financial instruments recorded at fair value on a recurring basis. The values assigned do

not

necessarily represent amounts which ultimately

may

be realized for assets or paid to settle liabilities. In addition, these values do

not

give effect to adjustments to fair value which

may

occur when financial instruments are sold or settled in larger quantities. The carrying amounts in the following tables are recorded in the balance sheet under the indicated captions.

The Company has

not

included assets and liabilities that are

not

financial instruments, such as goodwill, long-term relationships with deposit, merchant processing and trust customers, other purchased intangibles, premises and equipment, deferred taxes and other assets and liabilities. The total estimated fair values do

not

represent, and should

not

be construed to represent, the underlying value of the Company.

	At March 31, 2018
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2 )		Significant Unobservable Inputs (Level 3 )
Financial Assets:	(In thousands)
Cash and due from banks	$	555,607	$	555,607	$	555,607	$	-	$	-
Debt securities held to maturity		1,114,287		1,098,895		-		1,098,895		-
Loans		1,205,503		1,244,670		-		-		1,244,670
Financial Liabilities:
Deposits	$	4,867,867	$	4,864,792	$	-	$	4,643,430	$	221,362
Short-term borrowed funds		65,356		65,356		-		65,356		-

	At December 31, 2017
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2 )		Significant Unobservable Inputs (Level 3 )
Financial Assets:	(In thousands)
Cash and due from banks	$	575,002	$	575,002	$	575,002	$	-	$	-
Debt securities held to maturity		1,158,864		1,155,342		-		1,155,342		-
Loans		1,264,973		1,257,811		-		-		1,257,811
Financial Liabilities:
Deposits	$	4,827,613	$	4,824,586	$	-	$	4,595,795	$	228,791
Short-term borrowed funds		58,471		58,471		-		58,471		-

The majority of the Company’s standby letters of credit and other commitments to extend credit carry current market interest rates if converted to loans.

No

premium or discount was ascribed to these commitments because virtually all funding would be at current market rates.

XML

Note 10 - Commitments and Contingent Liabilities

3 Months Ended

Mar. 31, 2018

Notes to Financial Statements

Commitments and Contingencies Disclosure [Text Block]

Note

10:

Commitments and Contingent Liabilities

Loan commitments are agreements to lend to a customer provided there is

no

violation of any condition established in the agreement. Commitments generally have fixed expiration dates or other termination clauses. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do

not

necessarily represent future funding requirements. Loan commitments are subject to the Company’s normal credit policies and collateral requirements. Unfunded loan commitments were $

282,428

thousand and

$272,646

thousand at

March 31, 2018

and

December 31, 2017,

respectively. Standby letters of credit commit the Company to make payments on behalf of customers when certain specified future events occur. Standby letters of credit are primarily issued to support customers’ short-term financing requirements and must meet the Company’s normal credit policies and collateral requirements. Financial and performance standby letters of credit outstanding totaled $

3,849

thousand and

$19,263

thousand at

March 31, 2018

and

December 31, 2017,

respectively. The Company had

no

commitments outstanding for commercial and similar letters of credit at

March 31, 2018

and

December 31, 2017.

The Company had a reserve for unfunded commitments of $

2,308

thousand at

March 31, 2018

and

$2,308

thousand at

December 31, 2017,

included in other liabilities.

Due to the nature of its business, the Company is subject to various threatened or filed legal cases. Based on the advice of legal counsel, the Company does

not

expect such cases will have a material, adverse effect on its financial position or results of operations. Legal liabilities are accrued when obligations become probable and the amount can be reasonably estimated.

The Company has determined that it will be obligated to provide refunds of revenue recognized in prior years to some customers. The Company estimates the probable amount of these obligations will be

$5,542

thousand and has accrued a liability for such amount; the estimated liability is subject to revision.

XML

Note 11 - Earnings Per Common Share

3 Months Ended

Mar. 31, 2018

Notes to Financial Statements

Earnings Per Share [Text Block]

Note

11:

Earnings Per Common Share

The table below shows earnings per common share and diluted earnings per common share. Basic earnings per common share are computed by dividing net income by the average number of common shares outstanding during the period. Diluted earnings per common share are computed by dividing net income by the average number of common shares outstanding during the period plus the impact of common stock equivalents.

	For the Three Months Ended
	March 31,
	2018		2017
	(In thousands, except per share data)
Net income (numerator)	$	17,506	$	15,049
Basic earnings per common share
Weighted average number of common shares outstanding - basic (denominator)		26,532		26,171
Basic earnings per common share	$	0.66	$	0.58
Diluted earnings per common share
Weighted average number of common shares outstanding - basic		26,532		26,171
Add common stock equivalents for options		133		158
Weighted average number of common shares outstanding - diluted (denominator)		26,665		26,329
Diluted earnings per common share	$	0.66	$	0.57

For the

three

months ended

March 31, 2018

and

2017,

options to purchase

491

thousand and

299

thousand shares of common stock, respectively, were outstanding but

not

included in the computation of diluted net income per share because the option exercise price exceeded the fair value of the stock such that their inclusion would have had an anti-dilutive effect.

XML

Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2018

Accounting Policies [Abstract]

New Accounting Pronouncements, Policy [Policy Text Block]

Recently Adopted Accounting Standards

In the

three

months ended

March 31, 2018,

the Company adopted the following new accounting guidance:

FASB Accounting Standard Update (ASU)

2014

-

09

,

Revenue (Topic

606

): Revenue from Contracts with Customers,

was issued

May 2014.

The ASU specifies a standardized approach for revenue recognition across industries and transactions. The ASU also requires additional disclosures. The scope of the ASU does

not

include revenue streams covered by other ASU topics; thus, Topic

606

does

not

apply to revenue related to financial instruments, guarantees and leases, such as the Company’s net interest income.

Approximately

73%

of our revenue, including all of our net interest income and a portion of our noninterest income, is out of scope of the guidance. The contracts that are in scope of the guidance are primarily related to service charges and fees on deposit accounts, merchant processing fees, debit card fees, ATM processing fees, trust fees and other service charges, commissions and fees. We have completed analyzing the individual contracts in scope and determined our revenue recognition practices within the scope of the ASU as described below did

not

change in any material regard upon adoption of the ASU.

Service Charges on Deposit Accounts

: The Company earns fees from its deposit customers for transaction-based, account maintenance, and overdraft services. Transaction-based fees, which include services such as ATM use fees, stop payment charges, statement rendering, and ACH fees, are recognized at the time the transaction is executed as that is the point in time the Company fulfills the customer’s request. Account maintenance fees, which relate primarily to monthly maintenance, are earned over the course of a month, representing the period over which the Company satisfies the performance obligation. Overdraft fees are recognized at the point in time that the overdraft occurs. Service charges on deposits are withdrawn from the customer’s account balance.

Merchant Processing Services and Debit Card Fees

: The Company earns interchange fees from cardholder transactions conducted through the payment networks. Interchange fees from cardholder transactions represent a percentage of the underlying transaction value and are recognized daily, concurrently with the transaction processing services provided to the cardholder.

Trust Fees

: The Company earns trust fees from its contracts with customers to manage assets for investment or custody services. These fees are primarily earned over time as the Company provides the contracted monthly or quarterly services and are generally assessed based on a tiered scale of the market value of assets under management (AUM) at month-end. Other related services provided, which are based on a fixed fee schedule, are recognized when the services are rendered.

Gains/Losses on Sales of OREO

: The Company records a gain or loss from the sale of OREO when control of the property transfers to the buyer, which generally occurs at the time of an executed deed. The Company does

not

finance the sale of OREO.

The Company adopted the ASU on

January 1, 2018

and

no

cumulative adjustment was required.

FASB ASU

2016

-

01

,

Financial Instruments – Overall (Subtopic

825

-

10

): Recognition and Measurement of Financial Assets and Financial Liabilities,

was issued

January 2016.

The ASU addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. Most notably, the ASU changes the income statement impact of equity investments held by the Company and the requirement for the Company to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes (Note

9

).

The Company was required to adopt the ASU provisions on

January 1, 2018,

and for those equity securities with readily determinable fair values, the Company elected the retrospective transition approach with a cumulative effect adjustment to the balance sheet and for those equity securities that do

not

have readily determinable fair values, the Company elected the prospective transition approach. The impact of the adoption of this accounting standard on the Company’s consolidated financial statements will be subject to the price volatility of the equity investments. As a result of implementing the ASU provisions, effective

January 1, 2018,

the Company recorded a cumulative effect adjustment to retained earnings of

$142

thousand.

FASB ASU

2018

-

02

,

Income Statement – Reporting Comprehensive Income (Topic

220

): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income,

was issued

February 2018.

The ASU eliminates the stranded tax effects resulting from the Tax Cuts and Jobs Act by allowing a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. The Company early adopted the provisions of the ASU effective

January 1, 2018,

by reclassifying the Company’s

$3,625

thousand stranded tax effect.

Recently Issued Accounting Standards

FASB ASU

2016

-

02,

Leases (Topic

842

),

was issued

February 25, 2016.

The provisions of the new standard require lessees to recognize most leases on-balance sheet, increasing reported assets and liabilities. Lessor accounting remains substantially similar to current U.S. GAAP.

The Company will be required to adopt the ASU provisions

January 1, 2019,

and plans to elect the modified retrospective transition approach. Management is evaluating the impact that the ASU will have on the Company’s financial statements. As of

December 31, 2017,

the Company leased

58

of its operating facilities; the remaining minimum lease payments were

$17.5

million. The Company does

not

expect a material change in noninterest expenses upon adoption of the new standard.

FASB ASU

2016

-

13,

Financial Instruments – Credit Losses (Topic

326

): Measurement of Credit Losses on Financial Instruments,

was issued on

June 16, 2016.

The ASU significantly changes estimates for credit losses related to financial assets measured at amortized cost and certain other contracts. For estimating credit losses, the FASB is replacing the incurred loss model with the current expected credit loss (CECL) model, which will accelerate recognition of credit losses. Additionally, credit losses relating to debt securities available-for-sale will be recorded through an allowance for credit losses under the new standard. The Company will also be required to provide additional disclosures related to the financial assets within the scope of the new standard.

The Company will be required to adopt the ASU provisions on

January 1, 2020.

Management is evaluating the impact that the ASU will have on the Company’s consolidated financial statements. The ultimate adjustment to the allowance for loan losses will be accomplished through an offsetting after-tax adjustment to shareholders’ equity. Economic conditions and the composition of the Company’s loan portfolio at the time of adoption will influence the extent of the adopting accounting adjustment.

FASB ASU

2017

-

08

,

Receivables – Non-Refundable Fees and Other Costs (Subtopic

310

-

20

): Premium Amortization on Purchased Callable Debt Securities

, was issued

March 2017.

The ASU will shorten the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date. The amendments do

not

require an accounting change for securities held at a discount; the discount continues to be amortized to maturity.

The Company will be required to adopt the ASU provisions on

January 1, 2019.

Management is evaluating the impact the ASU will have on the Company’s financial statements.

FASB ASU

2017

-

12

,

Derivatives and Hedging (Topic

815

): Targeted Improvements to Accounting for Hedging Activities

, was issued

August 2017.

The ASU will expand and refine hedge accounting for both nonfinancial and financial risk components and align the recognition and presentation of the effects of the hedging instrument and the hedged item in the financial statements. The ASU also provides for a

one

-time reclassification of prepayable assets from held-to-maturity (HTM) to available for sale (AFS) regardless of derivative use.

The Company will be required to adopt the ASU provisions

January 1, 2019.

The Company does

not

currently engage in trading activities or use derivative instruments to control interest rate risk, even though such activities

may

be permitted with the approval of the Company’s Board of Directors. However, the Company is currently evaluating the prepayable assets in the HTM portfolio to determine if a

one

-time reclassification of prepayable assets from HTM to the AFS will occur upon implementation.

XML

Note 3 - Investment Securities (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Debt Securities, Available-for-sale and Held-to-maturity [Table Text Block]

			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gains		Losses			Value
At March 31, 2018	(In thousands)
Debt securities available for sale
Securities of U.S. Government sponsored entities	$	122,291	$	1	$	(4,345	)	$	117,947
Agency residential mortgage-backed securities (MBS)		879,824		500		(32,684	)		847,640
Non-agency residential MBS		138		1		-			139
Agency commercial MBS		2,229		-		(39	)		2,190
Securities of U.S. Government entities		1,526		-		(6	)		1,520
Obligations of states and political subdivisions		181,386		2,910		(3,661	)		180,635
Corporate securities		1,226,267		523		(24,891	)		1,201,899
Total debt securities available for sale		2,413,661		3,935		(65,626	)		2,351,970
Debt securities held to maturity
Agency residential MBS		520,105		325		(16,728	)		503,702
Non-agency residential MBS		4,179		77		-			4,256
Agency commercial MBS		1,902		-		(9	)		1,893
Obligations of states and political subdivisions		588,101		4,419		(3,476	)		589,044
Total debt securities held to maturity		1,114,287		4,821		(20,213	)		1,098,895
Total	$	3,527,948	$	8,756	$	(85,839	)	$	3,450,865

			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gains		Losses			Value
At December 31, 2017	(In thousands)
Debt securities available for sale
Securities of U.S. Government sponsored entities	$	122,285	$	1	$	(2,967	)	$	119,319
Agency residential MBS		787,679		522		(20,495	)		767,706
Non-agency residential MBS		153		1		-			154
Agency commercial MBS		2,244		-		(25	)		2,219
Securities of U.S. Government entities		1,612		-		(22	)		1,590
Obligations of states and political subdivisions		182,907		3,796		(1,482	)		185,221
Corporate securities		1,123,671		1,104		(9,277	)		1,115,498
Total debt securities available for sale		2,220,551		5,424		(34,268	)		2,191,707
Debt securities held to maturity
Agency residential MBS		545,883		606		(9,850	)		536,639
Non-agency residential MBS		4,462		70		-			4,532
Agency commercial MBS		9,041		-		(66	)		8,975
Obligations of states and political subdivisions		599,478		7,736		(2,018	)		605,196
Total debt securities held to maturity		1,158,864		8,412		(11,934	)		1,155,342
Total	$	3,379,415	$	13,836	$	(46,202	)	$	3,347,049

Investments Classified by Contractual Maturity Date [Table Text Block]

	At March 31, 2018
	Debt Securities Available				Debt Securities Held
	for Sale				to Maturity
	Amortized		Fair		Amortized		Fair
	Cost		Value		Cost		Value
	(In thousands)
Maturity in years:
1 year or less	$	164,450	$	162,099	$	67,865	$	68,636
Over 1 to 5 years		1,098,360		1,075,777		248,126		247,858
Over 5 to 10 years		225,690		223,481		269,159		269,527
Over 10 years		42,970		40,644		2,951		3,023
Subtotal		1,531,470		1,502,001		588,101		589,044
MBS		882,191		849,969		526,186		509,851
Total	$	2,413,661	$	2,351,970	$	1,114,287	$	1,098,895

	At December 31, 2017
	Debt Securities Available				Debt Securities Held
	for Sale				to Maturity
	Amortized		Fair		Amortized		Fair
	Cost		Value		Cost		Value
	(In thousands)
Maturity in years:
1 year or less	$	193,337	$	193,385	$	50,295	$	51,105
Over 1 to 5 years		1,031,807		1,023,047		269,050		269,471
Over 5 to 10 years		159,266		160,042		277,170		281,546
Over 10 years		46,065		45,154		2,963		3,074
Subtotal		1,430,475		1,421,628		599,478		605,196
MBS		790,076		770,079		559,386		550,146
Total	$	2,220,551	$	2,191,707	$	1,158,864	$	1,155,342

Schedule of Unrealized Loss on Investments [Table Text Block]

	Debt Securities Available for Sale
	At March 31, 2018
	No. of		Less than 12 months					No. of		12 months or longer					No. of		Total
	Investment				Unrealized			Investment				Unrealized			Investment				Unrealized
	Positions		Fair Value		Losses			Positions		Fair Value		Losses			Positions		Fair Value		Losses
	($ in thousands)
Securities of U.S. Government sponsored entities		2	$	1,977	$	(12	)		8	$	115,889	$	(4,333	)		10	$	117,866	$	(4,345	)
Agency residential MBS		11		280,804		(6,163	)		52		492,453		(26,521	)		63		773,257		(32,684	)
Agency commercial MBS		2		2,190		(39	)		-		-		-			2		2,190		(39	)
Securities of U.S. Government entities		-		-		-			3		1,520		(6	)		3		1,520		(6	)
Obligations of states and political subdivisions		57		31,091		(636	)		35		49,993		(3,025	)		92		81,084		(3,661	)
Corporate securities		82		781,714		(16,548	)		34		258,551		(8,343	)		116		1,040,265		(24,891	)
Total		154	$	1,097,776	$	(23,398	)		132	$	918,406	$	(42,228	)		286	$	2,016,182	$	(65,626	)

	Debt Securities Held to Maturity
	At March 31, 2018
	No. of		Less than 12 months					No. of		12 months or longer					No. of		Total
	Investment				Unrecognized			Investment				Unrecognized			Investment				Unrecognized
	Positions		Fair Value		Losses			Positions		Fair Value		Losses			Positions		Fair Value		Losses
	($ in thousands)
Agency residential MBS		23	$	33,919	$	(578	)		67	$	451,597	$	(16,150	)		90	$	485,516	$	(16,728	)
Agency commercial MBS		1		1,893		(9	)		-		-		-			1		1,893		(9	)
Obligations of states and political subdivisions		266		257,849		(1,557	)		58		57,422		(1,919	)		324		315,271		(3,476	)
Total		290	$	293,661	$	(2,144	)		125	$	509,019	$	(18,069	)		415	$	802,680	$	(20,213	)

	Debt Securities Available for Sale
	At December 31, 2017
	No. of		Less than 12 months					No. of		12 months or longer					No. of		Total
	Investment				Unrealized			Investment				Unrealized			Investment				Unrealized
	Positions		Fair Value		Losses			Positions		Fair Value		Losses			Positions		Fair Value		Losses
	($ in thousands)
Securities of U.S. Government sponsored entities		1	$	996	$	(2	)		8	$	117,252	$	(2,965	)		9	$	118,248	$	(2,967	)
Agency residential MBS		7		238,554		(1,501	)		51		516,711		(18,994	)		58		755,265		(20,495	)
Non-agency residential MBS		1		1		-			-		-		-			1		1		-
Agency commercial MBS		2		2,219		(25	)		-		-		-			2		2,219		(25	)
Securities of U.S. Government entities		-		-		-			3		1,590		(22	)		3		1,590		(22	)
Obligations of states and political subdivisions		50		21,453		(228	)		35		52,071		(1,254	)		85		73,524		(1,482	)
Corporate securities		64		571,112		(4,047	)		38		282,924		(5,230	)		102		854,036		(9,277	)
Total		125	$	834,335	$	(5,803	)		135	$	970,548	$	(28,465	)		260	$	1,804,883	$	(34,268	)

	Debt Securities Held to Maturity
	At December 31, 2017
	No. of		Less than 12 months					No. of		12 months or longer					No. of		Total
	Investment				Unrecognized			Investment				Unrecognized			Investment				Unrecognized
	Positions		Fair Value		Losses			Positions		Fair Value		Losses			Positions		Fair Value		Losses
	($ in thousands)
Agency residential MBS		15	$	30,218	$	(201	)		65	$	479,775	$	(9,649	)		80	$	509,993	$	(9,850	)
Agency commercial MBS		1		1,913		(4	)		1		7,062		(62	)		2		8,975		(66	)
Obligations of states and political subdivisions		146		131,032		(553	)		59		58,979		(1,465	)		205		190,011		(2,018	)
Total		162	$	163,163	$	(758	)		125	$	545,816	$	(11,176	)		287	$	708,979	$	(11,934	)

Interest Income from Investments [Table Text Block]

	For the Three Months
	Ended March 31,
	2018		2017
	(In thousands)
Taxable	$	14,935	$	12,147
Tax-exempt from regular federal income tax		4,875		5,397
Total interest income from investment securities	$	19,810	$	17,544

XML

Note 4 - Loans and Allowance for Loan Losses (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Schedule of Loans Receivable [Table Text Block]

	At March 31,		At December 31,
	2018		2017
	(In thousands)
Commercial	$	306,978	$	335,996
Commercial Real Estate		553,318		568,584
Construction		2,941		5,649
Residential Real Estate		59,484		65,183
Consumer Installment & Other		305,863		312,570
Total	$	1,228,584	$	1,287,982

Accretable Yield Reconciliation Schedule [Table Text Block]

	For the			For the
	Three Months Ended			Year Ended
	March 31, 2018			December 31, 2017
Accretable yield:	(In thousands)
Balance at the beginning of the period	$	738		$	1,237
Reclassification from nonaccretable difference		313			1,852
Accretion		(452	)		(2,351	)
Balance at the end of the period	$	599		$	738
Accretion	$	(452	)	$	(2,351	)
Change in FDIC indemnification		1			192
(Increase) in interest income	$	(451	)	$	(2,159	)

Schedule of Credit Losses Related to Financing Receivables, Current and Noncurrent [Table Text Block]

	Allowance for Loan Losses
	For the Three Months Ended March 31, 2018
													Consumer
				Commercial						Residential			Installment
	Commercial			Real Estate			Construction			Real Estate			and Other			Unallocated		Total
	(In thousands)
Allowance for loan losses:
Balance at beginning of period	$	7,746		$	3,849		$	335		$	995		$	6,418		$	3,666	$	23,009
Additions:
(Reversal) provision		(17	)		(25	)		(160	)		(87	)		37			252		-
Deductions:
Chargeoffs		(41	)		-			-			-			(1,365	)		-		(1,406	)
Recoveries		829			-			-			-			649			-		1,478
Net loan recoveries (losses)		788			-			-			-			(716	)		-		72
Total allowance for loan losses	$	8,517		$	3,824		$	175		$	908		$	5,739		$	3,918	$	23,081

	Allowance for Loan Losses
	For the Three Months Ended March 31, 2017
												Consumer
				Commercial					Residential			Installment
	Commercial			Real Estate		Construction			Real Estate			and Other			Unallocated			Total
	(In thousands)
Allowance for loan losses:
Balance at beginning of period	$	8,327		$	3,330	$	152		$	1,330		$	7,980		$	4,835		$	25,954
Additions:
Provision (reversal)		209			182		(40	)		(116	)		106			(341	)		-
Deductions:
Chargeoffs		(103	)		-		-			-			(1,739	)		-			(1,842	)
Recoveries		160			10		-			-			637			-			807
Net loan recoveries (losses)		57			10		-			-			(1,102	)		-			(1,035	)
Total allowance for loan losses	$	8,593		$	3,522	$	112		$	1,214		$	6,984		$	4,494		$	24,919

Schedule of Recorded Investment in Loans Evaluated for Impairment [Table Text Block]

	Allowance for Loan Losses and Recorded Investment in Loans Evaluated for Impairment
	At March 31, 2018
	Commercial		Commercial Real Estate		Construction		Residential Real Estate		Consumer Installment and Other		Unallocated		Total
	(In thousands)
Allowance for loan losses:
Individually evaluated for impairment	$	4,777	$	214	$	-	$	-	$	-	$	-	$	4,991
Collectively evaluated for impairment		3,740		3,610		175		908		5,739		3,918		18,090
Purchased loans with evidence of credit deterioration		-		-		-		-		-		-		-
Total	$	8,517	$	3,824	$	175	$	908	$	5,739	$	3,918	$	23,081
Carrying value of loans:
Individually evaluated for impairment	$	10,513	$	11,393	$	-	$	206	$	-	$	-	$	22,112
Collectively evaluated for impairment		296,432		541,327		2,941		59,278		305,705		-		1,205,683
Purchased loans with evidence of credit deterioration		33		598		-		-		158		-		789
Total	$	306,978	$	553,318	$	2,941	$	59,484	$	305,863	$	-	$	1,228,584

	Allowance for Loan Losses and Recorded Investment in Loans Evaluated for Impairment
	At December 31, 2017
	Commercial		Commercial Real Estate		Construction		Residential Real Estate		Consumer Installment and Other		Unallocated		Total
	(In thousands)
Allowance for loan losses:
Individually evaluated for impairment	$	4,814	$	171	$	-	$	-	$	-	$	-	$	4,985
Collectively evaluated for impairment		2,932		3,678		335		995		6,418		3,666		18,024
Purchased loans with evidence of credit deterioration		-		-		-		-		-		-		-
Total	$	7,746	$	3,849	$	335	$	995	$	6,418	$	3,666	$	23,009
Carrying value of loans:
Individually evaluated for impairment	$	10,675	$	14,234	$	-	$	208	$	-	$	-	$	25,117
Collectively evaluated for impairment		325,291		553,769		5,649		64,975		312,406		-		1,262,090
Purchased loans with evidence of credit deterioration		30		581		-		-		164		-		775
Total	$	335,996	$	568,584	$	5,649	$	65,183	$	312,570	$	-	$	1,287,982

Financing Receivable Credit Quality Indicators [Table Text Block]

	Credit Risk Profile by Internally Assigned Grade
	At March 31, 2018
	Commercial		Commercial Real Estate		Construction		Residential Real Estate		Consumer Installment and Other		Total
	(In thousands)
Grade:
Pass	$	283,666	$	547,740	$	2,941	$	59,202	$	303,836	$	1,197,385
Substandard		23,312		5,578		-		282		1,523		30,695
Doubtful		-		-		-		-		177		177
Loss		-		-		-		-		327		327
Total	$	306,978	$	553,318	$	2,941	$	59,484	$	305,863	$	1,228,584

	Credit Risk Profile by Internally Assigned Grade
	At December 31, 2017
	Commercial		Commercial Real Estate		Construction		Residential Real Estate		Consumer Installment and Other		Total
	(In thousands)
Grade:
Pass	$	324,185	$	548,853	$	5,649	$	62,253	$	310,429	$	1,251,369
Substandard		11,811		19,731		-		2,930		1,370		35,842
Doubtful		-		-		-		-		1		1
Loss		-		-		-		-		770		770
Total	$	335,996	$	568,584	$	5,649	$	65,183	$	312,570	$	1,287,982

Past Due Financing Receivables [Table Text Block]

	Summary of Loans by Delinquency and Nonaccrual Status
	At March 31, 2018
	Current and Accruing		30-59 Days Past Due and Accruing		60-89 Days Past Due and Accruing		Past Due 90 Days or More and Accruing		Nonaccrual		Total Loans
	(In thousands)
Commercial	$	306,396	$	227	$	84	$	-	$	271	$	306,978
Commercial real estate		544,476		2,809		360		-		5,673		553,318
Construction		2,941		-		-		-		-		2,941
Residential real estate		59,184		300		-		-		-		59,484
Consumer installment and other		302,214		2,667		531		255		196		305,863
Total	$	1,215,211	$	6,003	$	975	$	255	$	6,140	$	1,228,584

	Summary of Loans by Delinquency and Nonaccrual Status
	At December 31, 2017
	Current and Accruing		30-59 Days Past Due and Accruing		60-89 Days Past Due and Accruing		Past Due 90 Days or More and Accruing		Nonaccrual		Total Loans
	(In thousands)
Commercial	$	334,908	$	627	$	164	$	-	$	297	$	335,996
Commercial real estate		561,883		1,143		125		-		5,433		568,584
Construction		5,649		-		-		-		-		5,649
Residential real estate		65,183		-		-		-		-		65,183
Consumer installment and other		307,445		3,321		1,077		531		196		312,570
Total	$	1,275,068	$	5,091	$	1,366	$	531	$	5,926	$	1,287,982

Impaired Financing Receivables [Table Text Block]

	Impaired Loans
	At March 31,						At December 31,
	2018						2017
			Unpaid						Unpaid
	Recorded		Principal		Related		Recorded		Principal		Related
	Investment		Balance		Allowance		Investment		Balance		Allowance
	(In thousands)
With no related allowance recorded:
Commercial	$	1,183	$	1,227	$	-	$	1,212	$	1,271	$	-
Commercial real estate		9,766		11,752		-		13,169		14,985		-
Residential real estate		206		237		-		208		239		-
Consumer installment and other		354		461		-		360		466		-
Total with no related allowance recorded		11,509		13,677		-		14,949		16,961		-
With an allowance recorded:
Commercial		9,634		9,634		4,777		9,764		9,764		4,814
Commercial real estate		2,784		2,787		214		1,790		1,792		171
Total with an allowance recorded		12,418		12,421		4,991		11,554		11,556		4,985
Total	$	23,927	$	26,098	$	4,991	$	26,503	$	28,517	$	4,985

Impaired Financing Receivables Supplemental Schedule [Table Text Block]

	Impaired Loans
	For the Three Months Ended March 31,
	2018				2017
	Average		Recognized		Average		Recognized
	Recorded		Interest		Recorded		Interest
	Investment		Income		Investment		Income
	(In thousands)
Commercial	$	10,897	$	175	$	11,292	$	118
Commercial real estate		13,755		215		14,500		237
Construction		-		-		-		-
Residential real estate		207		4		748		4
Consumer installment and other		357		3		543		7
Total	$	25,216	$	397	$	27,083	$	366

Troubled Debt Restructurings on Financing Receivables [Table Text Block]

	Troubled Debt Restructurings
	At March 31, 2018
							Period-End
							Individual
	Number of		Pre-Modification		Period-End		Impairment
	Contracts		Carrying Value		Carrying Value		Allowance
	($ in thousands)
Commercial		7	$	2,393	$	1,043	$	39
Commercial real estate		9		9,537		8,301		-
Residential real estate		1		241		206		-
Total		17	$	12,171	$	9,550	$	39

	Troubled Debt Restructurings
	At December 31, 2017
							Period-End
							Individual
	Number of		Pre-Modification		Period-End		Impairment
	Contracts		Carrying Value		Carrying Value		Allowance
	($ in thousands)
Commercial		7	$	2,393	$	1,085	$	43
Commercial real estate		10		11,528		10,788		-
Residential real estate		1		241		208		-
Total		18	$	14,162	$	12,081	$	43

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Note 6 - Other Assets (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Schedule of Other Assets [Table Text Block]

	At March 31,		At December 31,
	2018		2017
	(In thousands)
Equity securities without readily determinable fair values:
Federal Reserve Bank stock (1)	$	14,069	$	14,069
Other investments		158		158
Total equity securities without readily determinable fair values		14,227		14,227
Life insurance cash surrender value		54,742		54,101
Net deferred tax asset		42,842		33,112
Limited partnership investments		9,519		10,119
Interest receivable		22,538		23,557
Prepaid assets		4,532		4,906
Other assets		11,386		18,428
Total other assets	$	159,786	$	158,450

Schedule of Amounts Recognized in Net Income [Table Text Block]

	For the Three Months Ended
	March 31,
	2018		2017
	(In thousands)
Investment loss included in pre-tax income	$	600	$	450
Tax credits recognized in provision for income taxes		336		463

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Note 7 - Goodwill and Identifiable Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Schedule of Goodwill [Table Text Block]

	At March 31, 2018		At December 31, 2017
	(In thousands)
Goodwill	$	121,673	$	121,673

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	At March 31,					At December 31,
	2018					2017
	Gross					Gross
	Carrying		Accumulated			Carrying		Accumulated
	Amount		Amortization			Amount		Amortization
	(In thousands)
Core Deposit Intangibles	$	56,808	$	(53,528	)	$	56,808	$	(52,987	)
Merchant Draft Processing Intangible		10,300		(10,300	)		10,300		(10,271	)
Total Identifiable Intangible Assets	$	67,108	$	(63,828	)	$	67,108	$	(63,258	)

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

			Merchant
	Core		Draft
	Deposit		Processing
	Intangibles		Intangible		Total
	(In thousands)
For the Three Months ended March 31, 2018 (actual)	$	541	$	29	$	570
Estimate for the remainder of year ending December 31, 2018		1,351		-		1,351
Estimate for year ending December 31, 2019		538		-		538
2020		287		-		287
2021		269		-		269
2022		252		-		252
2023		236		-		236

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Note 8 - Deposits and Borrowed Funds (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Deposit Liabilities, Type [Table Text Block]

	Deposits
	At March 31,		At December 31,
	2018		2017
	(In thousands)
Noninterest-bearing	$	2,179,157	$	2,197,526
Interest-bearing:
Transaction		924,081		904,245
Savings		1,540,192		1,494,024
Time deposits less than $100 thousand		114,301		117,848
Time deposits $100 thousand through $250 thousand		74,436		76,578
Time deposits more than $250 thousand		35,700		37,392
Total deposits	$	4,867,867	$	4,827,613

Schedule of Repurchase Agreements [Table Text Block]

	Repurchase Agreements (Sweep) Accounted for as Secured Borrowings
	Remaining Contractual Maturity of the Agreements
	Overnight and Continuous
	At March 31, 2018		At December 31, 2017
Repurchase agreements:	(In thousands)
Collateral securing borrowings:
Securities of U.S. Government sponsored entities	$	73,165	$	74,173
Agency residential MBS		64,266		58,251
Corporate securities		104,210		105,113
Total collateral carrying value	$	241,641	$	237,537
Total short-term borrowed funds	$	65,356	$	58,471

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Note 9 - Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

	At March 31, 2018
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(In thousands)
Equity securities
Mutual funds	$	1,764	$	-	$	1,764	$	-
Total equity securities		1,764		-		1,764		-
Debt securities available for sale
Securities of U.S. Government sponsored entities		117,947		-		117,947		-
Agency residential MBS		847,640		-		847,640		-
Non-agency residential MBS		139		-		139		-
Agency commercial MBS		2,190		-		2,190		-
Securities of U.S. Government entities		1,520		-		1,520		-
Obligations of states and political subdivisions		180,635		-		180,635		-
Corporate securities		1,201,899		-		1,201,899		-
Total debt securities available for sale		2,351,970		-		2,351,970		-
Total	$	2,353,734	$	-	$	2,353,734	$	-

	At December 31, 2017
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(In thousands)
Equity securities
Mutual funds	$	1,800	$	-	$	1,800	$	-
Total equity securities		1,800		-		1,800		-
Debt securities available for sale
Securities of U.S. Government sponsored entities		119,319		-		119,319		-
Agency residential MBS		767,706		-		767,706		-
Non-agency residential MBS		154		-		154		-
Agency commercial MBS		2,219		-		2,219		-
Securities of U.S. Government entities		1,590		-		1,590		-
Obligations of states and political subdivisions		185,221		-		185,221		-
Corporate securities		1,115,498		-		1,115,498		-
Total debt securities available for sale		2,191,707		-		2,191,707		-
Total	$	2,193,507	$	-	$	2,193,507	$	-

Fair Value Measurements, Nonrecurring [Table Text Block]

									For the
									Three Months Ended
	At March 31, 2018								March 31, 2018
	Carrying Value		Level 1		Level 2		Level 3		Total Losses
	(In thousands)
Other real estate owned	$	1,376	$	-	$	-	$	1,376	$	-
Impaired loans:
Commercial		4,857		-		-		4,857		-
Commercial real estate		6,680		-		-		6,680		-
Total assets measured at fair value on a nonrecurring basis	$	12,913	$	-	$	-	$	12,913	$	-

									For the
									Year Ended
	At December 31, 2017								December 31, 2017
	Carrying Value		Level 1		Level 2		Level 3		Total Losses
	(In thousands)
Other real estate owned	$	1,426	$	-	$	-	$	1,426	$	(219	)
Impaired loans:
Commercial		4,950		-		-		4,950		-
Commercial real estate		5,904		-		-		5,904		-
Total assets measured at fair value on a nonrecurring basis	$	12,280	$	-	$	-	$	12,280	$	(219	)

Fair Value, by Balance Sheet Grouping [Table Text Block]

	At March 31, 2018
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2 )		Significant Unobservable Inputs (Level 3 )
Financial Assets:	(In thousands)
Cash and due from banks	$	555,607	$	555,607	$	555,607	$	-	$	-
Debt securities held to maturity		1,114,287		1,098,895		-		1,098,895		-
Loans		1,205,503		1,244,670		-		-		1,244,670
Financial Liabilities:
Deposits	$	4,867,867	$	4,864,792	$	-	$	4,643,430	$	221,362
Short-term borrowed funds		65,356		65,356		-		65,356		-

	At December 31, 2017
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2 )		Significant Unobservable Inputs (Level 3 )
Financial Assets:	(In thousands)
Cash and due from banks	$	575,002	$	575,002	$	575,002	$	-	$	-
Debt securities held to maturity		1,158,864		1,155,342		-		1,155,342		-
Loans		1,264,973		1,257,811		-		-		1,257,811
Financial Liabilities:
Deposits	$	4,827,613	$	4,824,586	$	-	$	4,595,795	$	228,791
Short-term borrowed funds		58,471		58,471		-		58,471		-

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Note 11 - Earnings Per Common Share (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	For the Three Months Ended
	March 31,
	2018		2017
	(In thousands, except per share data)
Net income (numerator)	$	17,506	$	15,049
Basic earnings per common share
Weighted average number of common shares outstanding - basic (denominator)		26,532		26,171
Basic earnings per common share	$	0.66	$	0.58
Diluted earnings per common share
Weighted average number of common shares outstanding - basic		26,532		26,171
Add common stock equivalents for options		133		158
Weighted average number of common shares outstanding - diluted (denominator)		26,665		26,329
Diluted earnings per common share	$	0.66	$	0.57

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Note 2 - Accounting Policies (Details Textual) - USD ($) $ in Thousands		3 Months Ended
	Jan. 01, 2018	Mar. 31, 2018	Dec. 31, 2017
Percentage of Revenue Out of Scope of ASU 2014-09		73.00%
Cumulative Effect of New Accounting Principle in Period of Adoption
Tax Cuts and Jobs Act of 2017, Reclassification From Aoci to Retained Earnings
Operating Leases, Future Minimum Payments Due, Total			17,500
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption			(142)
Tax Cuts and Jobs Act of 2017, Reclassification From Aoci to Retained Earnings		3,625
Retained Earnings [Member] | Accounting Standards Update 2016-01 [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	$ (142)
Retained Earnings [Member] | Accounting Standards Update 2018-02 [Member]
Tax Cuts and Jobs Act of 2017, Reclassification From Aoci to Retained Earnings	3,625
AOCI Attributable to Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption			$ 142
Tax Cuts and Jobs Act of 2017, Reclassification From Aoci to Retained Earnings		$ (3,625)
AOCI Attributable to Parent [Member] | Accounting Standards Update 2016-01 [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	142
AOCI Attributable to Parent [Member] | Accounting Standards Update 2018-02 [Member]
Tax Cuts and Jobs Act of 2017, Reclassification From Aoci to Retained Earnings	$ (3,625)

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Note 3 - Investment Securities (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Jan. 01, 2018	Dec. 31, 2017
Equity Securities, FV-NI	$ 1,764		$ 1,800	$ 1,800
Cumulative Effect of New Accounting Principle in Period of Adoption
Unrealized Gain (Loss) on Securities	(36)
High Risk Collateralized Mortgage Obligations	0			0
Pledged Financial Instruments, Not Separately Reported, Securities, Total	$ 696,058			715,774
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption				(142)
Retained Earnings [Member] | Accounting Standards Update 2016-01 [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption			(142)
AOCI Attributable to Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption				$ 142
AOCI Attributable to Parent [Member] | Accounting Standards Update 2016-01 [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption			$ 142

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Note 3 - Investment Securities - Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Investment Securities Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Debt securities available for sale, amortized cost	$ 2,413,661	$ 2,220,551
Debt securities available for sale, gross unrealized gains	3,935	5,424
Debt securities available for sale, gross unrealized losses	(65,626)	(34,268)
Debt securities available for sale	2,351,970	2,191,707
Debt securities held to maturity, amortized cost	1,114,287	1,158,864
Debt securities held to maturity, gross unrecognized gains	4,821	8,412
Debt securities held to maturity, gross unrecognized losses	(20,213)	(11,934)
Debt securities held to maturity, fair values	1,098,895	1,155,342
Debt securities, amortized cost	3,527,948	3,379,415
Debt securities, gross unrecognized gains	8,756	13,836
Debt securities, gross unrecognized losses	(85,839)	(46,202)
Debt securities, fair value	3,450,865	3,347,049
US Government-sponsored Enterprises Debt Securities [Member]
Debt securities available for sale, amortized cost	122,291	122,285
Debt securities available for sale, gross unrealized gains	1	1
Debt securities available for sale, gross unrealized losses	(4,345)	(2,967)
Debt securities available for sale	117,947	119,319
Agency Residential MBS [Member]
Debt securities available for sale, amortized cost	879,824	787,679
Debt securities available for sale, gross unrealized gains	500	522
Debt securities available for sale, gross unrealized losses	(32,684)	(20,495)
Debt securities available for sale	847,640	767,706
Debt securities held to maturity, amortized cost	520,105	545,883
Debt securities held to maturity, gross unrecognized gains	325	606
Debt securities held to maturity, gross unrecognized losses	(16,728)	(9,850)
Debt securities held to maturity, fair values	503,702	536,639
Non-agency Residential MBS [Member]
Debt securities available for sale, amortized cost	138	153
Debt securities available for sale, gross unrealized gains	1	1
Debt securities available for sale, gross unrealized losses
Debt securities available for sale	139	154
Debt securities held to maturity, amortized cost	4,179	4,462
Debt securities held to maturity, gross unrecognized gains	77	70
Debt securities held to maturity, gross unrecognized losses
Debt securities held to maturity, fair values	4,256	4,532
Agency Commercial MBS [Member]
Debt securities available for sale, amortized cost	2,229	2,244
Debt securities available for sale, gross unrealized gains
Debt securities available for sale, gross unrealized losses	(39)	(25)
Debt securities available for sale	2,190	2,219
Debt securities held to maturity, amortized cost	1,902	9,041
Debt securities held to maturity, gross unrecognized gains
Debt securities held to maturity, gross unrecognized losses	(9)	(66)
Debt securities held to maturity, fair values	1,893	8,975
US Government Agencies Debt Securities [Member]
Debt securities available for sale, amortized cost	1,526	1,612
Debt securities available for sale, gross unrealized gains
Debt securities available for sale, gross unrealized losses	(6)	(22)
Debt securities available for sale	1,520	1,590
US States and Political Subdivisions Debt Securities [Member]
Debt securities available for sale, amortized cost	181,386	182,907
Debt securities available for sale, gross unrealized gains	2,910	3,796
Debt securities available for sale, gross unrealized losses	(3,661)	(1,482)
Debt securities available for sale	180,635	185,221
Debt securities held to maturity, amortized cost	588,101	599,478
Debt securities held to maturity, gross unrecognized gains	4,419	7,736
Debt securities held to maturity, gross unrecognized losses	(3,476)	(2,018)
Debt securities held to maturity, fair values	589,044	605,196
Debt Security, Corporate, US [Member]
Debt securities available for sale, amortized cost	1,226,267	1,123,671
Debt securities available for sale, gross unrealized gains	523	1,104
Debt securities available for sale, gross unrealized losses	(24,891)	(9,277)
Debt securities available for sale	$ 1,201,899	$ 1,115,498

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Note 3 - Investment Securities - Amortized Cost and Estimated Market Value of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Investment securities available for sale, amortized cost, 1 year or less	$ 164,450	$ 193,337
Investment securities available for sale, fair value, 1 year or less	162,099	193,385
Investment securities held to maturity, amortized cost, 1 year or less	67,865	50,295
Investment securities held to maturity, fair value, 1 year or less	68,636	51,105
Investment securities available for sale, amortized cost, over 1 to 5 years	1,098,360	1,031,807
Investment securities available for sale, fair value, over 1 to 5 years	1,075,777	1,023,047
Investment securities held to maturity, amortized cost, over 1 to 5 years	248,126	269,050
Investment securities held to maturity, fair value, over 1 to 5 years	247,858	269,471
Investment securities available for sale, amortized cost, over 5 to 10 years	225,690	159,266
Investment securities available for sale, fair value, over 5 to 10 years	223,481	160,042
Investment securities held to maturity, amortized cost, over 5 to 10 years	269,159	277,170
Investment securities held to maturity, fair value, over 5 to 10 years	269,527	281,546
Investment securities available for sale, amortized cost, over 10 years	42,970	46,065
Investment securities available for sale, fair value, over 10 years	40,644	45,154
Investment securities held to maturity, amortized cost, over 10 years	2,951	2,963
Investment securities held to maturity, fair value, over 10 years	3,023	3,074
Investment securities available for sale, amortized cost, subtotal	1,531,470	1,430,475
Investment securities available for sale, fair value, subtotal	1,502,001	1,421,628
Investment securities held to maturity, amortized cost, subtotal	588,101	599,478
Investment securities held to maturity, fair value, subtotal	589,044	605,196
Investment securities available for sale, amortized cost	882,191	790,076
Investment securities available for sale, fair value	849,969	770,079
Investment securities held to maturity, amortized cost	526,186	559,386
Investment securities held to maturity, fair value	509,851	550,146
Investment securities available for sale, amortized cost	2,413,661	2,220,551
Investment securities available for sale, fair value	2,351,970	2,191,707
Investment securities held to maturity, amortized cost	1,114,287	1,158,864
Investment securities held to maturity, fair value	$ 1,098,895	$ 1,155,342

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Note 3 - Investment Securities - Gross Unrealized Losses, Investment Securities Portfolio (Details) $ in Thousands	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Available for sale securities, less than 12 months, number of investment positions	154	125
Available for sale securities, less than 12 months, fair value	$ 1,097,776	$ 834,335
Available for sale securities, less than 12 months, unrealized losses	$ (23,398)	$ (5,803)
Available for sale securities, 12 months or longer, number of investment positions	132	135
Available for sale securities, 12 months or longer, fair value	$ 918,406	$ 970,548
Available for sale securities, 12 months or longer, unrealized losses	$ (42,228)	$ (28,465)
Available for sale securities, total, number of investment positions	286	260
Available for sale securities, total, fair value	$ 2,016,182	$ 1,804,883
Available for sale securities, total, unrealized losses	$ (65,626)	$ (34,268)
Held to Maturity securities, less than 12 months, number of investment positions	290	162
Held to Maturity securities, less than 12 months, fair value	$ 293,661	$ 163,163
Held to Maturity securities, less than 12 months, unrecognized losses	$ (2,144)	$ (758)
Held to Maturity securities, 12 months or longer, number of investment positions	125	125
Held to Maturity securities, 12 months or longer, fair value	$ 509,019	$ 545,816
Held to Maturity securities, 12 months or longer, unrecognized losses	$ (18,069)	$ (11,176)
Held to Maturity securities, total, number of investment positions	415	287
Held to Maturity securities, total, fair value	$ 802,680	$ 708,979
Held to Maturity securities, total, unrecognized losses	$ (20,213)	$ (11,934)
US Government-sponsored Enterprises Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions	2	1
Available for sale securities, less than 12 months, fair value	$ 1,977	$ 996
Available for sale securities, less than 12 months, unrealized losses	$ (12)	$ (2)
Available for sale securities, 12 months or longer, number of investment positions	8	8
Available for sale securities, 12 months or longer, fair value	$ 115,889	$ 117,252
Available for sale securities, 12 months or longer, unrealized losses	$ (4,333)	$ (2,965)
Available for sale securities, total, number of investment positions	10	9
Available for sale securities, total, fair value	$ 117,866	$ 118,248
Available for sale securities, total, unrealized losses	$ (4,345)	$ (2,967)
Agency Residential MBS [Member]
Available for sale securities, less than 12 months, number of investment positions	11	7
Available for sale securities, less than 12 months, fair value	$ 280,804	$ 238,554
Available for sale securities, less than 12 months, unrealized losses	$ (6,163)	$ (1,501)
Available for sale securities, 12 months or longer, number of investment positions	52	51
Available for sale securities, 12 months or longer, fair value	$ 492,453	$ 516,711
Available for sale securities, 12 months or longer, unrealized losses	$ (26,521)	$ (18,994)
Available for sale securities, total, number of investment positions	63	58
Available for sale securities, total, fair value	$ 773,257	$ 755,265
Available for sale securities, total, unrealized losses	$ (32,684)	$ (20,495)
Held to Maturity securities, less than 12 months, number of investment positions	23	15
Held to Maturity securities, less than 12 months, fair value	$ 33,919	$ 30,218
Held to Maturity securities, less than 12 months, unrecognized losses	$ (578)	$ (201)
Held to Maturity securities, 12 months or longer, number of investment positions	67	65
Held to Maturity securities, 12 months or longer, fair value	$ 451,597	$ 479,775
Held to Maturity securities, 12 months or longer, unrecognized losses	$ (16,150)	$ (9,649)
Held to Maturity securities, total, number of investment positions	90	80
Held to Maturity securities, total, fair value	$ 485,516	$ 509,993
Held to Maturity securities, total, unrecognized losses	$ (16,728)	$ (9,850)
Agency Commercial MBS [Member]
Available for sale securities, less than 12 months, number of investment positions	2	2
Available for sale securities, less than 12 months, fair value	$ 2,190	$ 2,219
Available for sale securities, less than 12 months, unrealized losses	$ (39)	$ (25)
Available for sale securities, 12 months or longer, number of investment positions
Available for sale securities, 12 months or longer, fair value
Available for sale securities, 12 months or longer, unrealized losses
Available for sale securities, total, number of investment positions	2	2
Available for sale securities, total, fair value	$ 2,190	$ 2,219
Available for sale securities, total, unrealized losses	$ (39)	$ (25)
Held to Maturity securities, less than 12 months, number of investment positions	1	1
Held to Maturity securities, less than 12 months, fair value	$ 1,893	$ 1,913
Held to Maturity securities, less than 12 months, unrecognized losses	$ (9)	$ (4)
Held to Maturity securities, 12 months or longer, number of investment positions		1
Held to Maturity securities, 12 months or longer, fair value		$ 7,062
Held to Maturity securities, 12 months or longer, unrecognized losses		$ (62)
Held to Maturity securities, total, number of investment positions	1	2
Held to Maturity securities, total, fair value	$ 1,893	$ 8,975
Held to Maturity securities, total, unrecognized losses	$ (9)	$ (66)
US States and Political Subdivisions Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions	57	50
Available for sale securities, less than 12 months, fair value	$ 31,091	$ 21,453
Available for sale securities, less than 12 months, unrealized losses	$ (636)	$ (228)
Available for sale securities, 12 months or longer, number of investment positions	35	35
Available for sale securities, 12 months or longer, fair value	$ 49,993	$ 52,071
Available for sale securities, 12 months or longer, unrealized losses	$ (3,025)	$ (1,254)
Available for sale securities, total, number of investment positions	92	85
Available for sale securities, total, fair value	$ 81,084	$ 73,524
Available for sale securities, total, unrealized losses	$ (3,661)	$ (1,482)
Held to Maturity securities, less than 12 months, number of investment positions	266	146
Held to Maturity securities, less than 12 months, fair value	$ 257,849	$ 131,032
Held to Maturity securities, less than 12 months, unrecognized losses	$ (1,557)	$ (553)
Held to Maturity securities, 12 months or longer, number of investment positions	58	59
Held to Maturity securities, 12 months or longer, fair value	$ 57,422	$ 58,979
Held to Maturity securities, 12 months or longer, unrecognized losses	$ (1,919)	$ (1,465)
Held to Maturity securities, total, number of investment positions	324	205
Held to Maturity securities, total, fair value	$ 315,271	$ 190,011
Held to Maturity securities, total, unrecognized losses	$ (3,476)	$ (2,018)
Non-agency Residential MBS [Member]
Available for sale securities, less than 12 months, number of investment positions		1
Available for sale securities, less than 12 months, fair value		$ 1
Available for sale securities, less than 12 months, unrealized losses
Available for sale securities, 12 months or longer, number of investment positions
Available for sale securities, 12 months or longer, fair value
Available for sale securities, 12 months or longer, unrealized losses
Available for sale securities, total, number of investment positions		1
Available for sale securities, total, fair value		$ 1
Available for sale securities, total, unrealized losses
US Government Agencies Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions
Available for sale securities, less than 12 months, fair value
Available for sale securities, less than 12 months, unrealized losses
Available for sale securities, 12 months or longer, number of investment positions	3	3
Available for sale securities, 12 months or longer, fair value	$ 1,520	$ 1,590
Available for sale securities, 12 months or longer, unrealized losses	$ (6)	$ (22)
Available for sale securities, total, number of investment positions	3	3
Available for sale securities, total, fair value	$ 1,520	$ 1,590
Available for sale securities, total, unrealized losses	$ (6)	$ (22)
Debt Security, Corporate, US [Member]
Available for sale securities, less than 12 months, number of investment positions	82	64
Available for sale securities, less than 12 months, fair value	$ 781,714	$ 571,112
Available for sale securities, less than 12 months, unrealized losses	$ (16,548)	$ (4,047)
Available for sale securities, 12 months or longer, number of investment positions	34	38
Available for sale securities, 12 months or longer, fair value	$ 258,551	$ 282,924
Available for sale securities, 12 months or longer, unrealized losses	$ (8,343)	$ (5,230)
Available for sale securities, total, number of investment positions	116	102
Available for sale securities, total, fair value	$ 1,040,265	$ 854,036
Available for sale securities, total, unrealized losses	$ (24,891)	$ (9,277)

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Note 3 - Investment Securities - Interest Income From Investment Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Taxable	$ 14,935	$ 12,147
Tax-exempt from regular federal income tax	4,875	5,397
Total interest income from investment securities	$ 19,810	$ 17,544

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Note 4 - Loans and Allowance for Loan Losses (Details Textual) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)
Purchased Loans	$ 75,476		$ 83,478
Loans and Leases Receivable, Nonaccrual, Commitment to Lend	0		0
Financing Receivable, Modifications, Recorded Investment	9,550		12,081
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down	$ 0	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Pledged Financial Instruments, Not Separately Reported, Loans Receivable Pledged as Collateral, Total	$ 0		0
Loans Receivable Held-for-sale, Amount	0		0
Other Real Estate, Ending Balance	1,376		1,426
Other Real Estate, Reserve	1,905		1,905
Mortgage Loans in Process of Foreclosure, Amount			196
Residential Real Estate Included in OREO [Member]
Real Estate Acquired Through Foreclosure	$ 0		0
Under Market Modification to Payment Terms, Extended Maturity Date [Member]
Financing Receivable, Modifications, Recorded Investment		$ 273
Troubled Debt Restructurings During Period	0	2
Restructured Loans [Member]
Financing Receivable, Modifications, Recorded Investment	$ 9,550		12,081
Impaired Loans, Restructured, Nonaccrual Status	$ 4,110		$ 4,285

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Note 4 - Loans and Allowance for Loan Losses - Loans Receivable at Carrying Amount (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Loans	$ 1,228,584	$ 1,287,982
Commercial Portfolio Segment [Member]
Loans	306,978	335,996
Commercial Real Estate Portfolio Segment [Member]
Loans	553,318	568,584
Construction Portfolio Segment [Member]
Loans	2,941	5,649
Residential Portfolio Segment [Member]
Loans	59,484	65,183
Consumer Portfolio Segment [Member]
Loans	$ 305,863	$ 312,570

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Note 4 - Loans and Allowance for Loan Losses - Changes in the Accretable Yield for Purchased Loans (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Balance at the beginning of the period	$ 738	$ 1,237
Reclassification from nonaccretable difference	313	1,852
Accretion	(452)	(2,351)
Balance at the end of the period	599	738
Change in FDIC indemnification	1	192
(Increase) in interest income	$ (451)	$ (2,159)

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Note 4 - Loans and Allowance for Loan Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Balance at beginning of period	$ 23,009	$ 25,954
(Reversal) provision
Chargeoffs	(1,406)	(1,842)
Recoveries	1,478	807
Net loan recoveries (losses)	72	(1,035)
Total allowance for loan losses	23,081	24,919
Unallocated Financing Receivable [Member]
Balance at beginning of period	3,666	4,835
(Reversal) provision	252	(341)
Chargeoffs
Recoveries
Net loan recoveries (losses)
Total allowance for loan losses	3,918	4,494
Commercial Portfolio Segment [Member]
Balance at beginning of period	7,746	8,327
(Reversal) provision	(17)	209
Chargeoffs	(41)	(103)
Recoveries	829	160
Net loan recoveries (losses)	788	57
Total allowance for loan losses	8,517	8,593
Commercial Real Estate Portfolio Segment [Member]
Balance at beginning of period	3,849	3,330
(Reversal) provision	(25)	182
Chargeoffs
Recoveries		10
Net loan recoveries (losses)		10
Total allowance for loan losses	3,824	3,522
Construction Portfolio Segment [Member]
Balance at beginning of period	335	152
(Reversal) provision	(160)	(40)
Chargeoffs
Recoveries
Net loan recoveries (losses)
Total allowance for loan losses	175	112
Residential Portfolio Segment [Member]
Balance at beginning of period	995	1,330
(Reversal) provision	(87)	(116)
Chargeoffs
Recoveries
Net loan recoveries (losses)
Total allowance for loan losses	908	1,214
Consumer Portfolio Segment [Member]
Balance at beginning of period	6,418	7,980
(Reversal) provision	37	106
Chargeoffs	(1,365)	(1,739)
Recoveries	649	637
Net loan recoveries (losses)	(716)	(1,102)
Total allowance for loan losses	$ 5,739	$ 6,984

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Note 4 - Loans and Allowance for Loan Losses - Recorded Investment in Loans Evaluated for Impairment (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Individually evaluated for impairment	$ 4,991	$ 4,985
Collectively evaluated for impairment	18,090	18,024
Total allowance for loan losses	23,081	23,009	$ 24,919	$ 25,954
Individually evaluated for impairment	22,112	25,117
Collectively evaluated for impairment	1,205,683	1,262,090
Total loans	1,228,584	1,287,982
Financial Asset Acquired with Credit Deterioration [Member]
Total allowance for loan losses	0	0
Total loans	789	775
Unallocated Financing Receivable [Member]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	3,918	3,666
Total allowance for loan losses	3,918	3,666	4,494	4,835
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	0	0
Total loans	0	0
Unallocated Financing Receivable [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Total allowance for loan losses	0	0
Total loans	0	0
Commercial Portfolio Segment [Member]
Individually evaluated for impairment	4,777	4,814
Collectively evaluated for impairment	3,740	2,932
Total allowance for loan losses	8,517	7,746	8,593	8,327
Individually evaluated for impairment	10,513	10,675
Collectively evaluated for impairment	296,432	325,291
Total loans	306,978	335,996
Commercial Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Total allowance for loan losses	0	0
Total loans	33	30
Commercial Real Estate Portfolio Segment [Member]
Individually evaluated for impairment	214	171
Collectively evaluated for impairment	3,610	3,678
Total allowance for loan losses	3,824	3,849	3,522	3,330
Individually evaluated for impairment	11,393	14,234
Collectively evaluated for impairment	541,327	553,769
Total loans	553,318	568,584
Commercial Real Estate Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Total allowance for loan losses	0	0
Total loans	598	581
Construction Portfolio Segment [Member]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	175	335
Total allowance for loan losses	175	335	112	152
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	2,941	5,649
Total loans	2,941	5,649
Construction Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Total allowance for loan losses	0	0
Total loans	0	0
Residential Portfolio Segment [Member]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	908	995
Total allowance for loan losses	908	995	1,214	1,330
Individually evaluated for impairment	206	208
Collectively evaluated for impairment	59,278	64,975
Total loans	59,484	65,183
Residential Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Total allowance for loan losses	0	0
Total loans	0	0
Consumer Portfolio Segment [Member]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	5,739	6,418
Total allowance for loan losses	5,739	6,418	$ 6,984	$ 7,980
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	305,705	312,406
Total loans	305,863	312,570
Consumer Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Total allowance for loan losses	0	0
Total loans	$ 158	$ 164

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Note 4 - Loans and Allowance for Loan Losses - Credit Risk Profile by Internally Assigned Grade (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Loans	$ 1,228,584	$ 1,287,982
Pass [Member]
Loans	1,197,385	1,251,369
Substandard [Member]
Loans	30,695	35,842
Doubtful [Member]
Loans	177	1
Unlikely to be Collected Financing Receivable [Member]
Loans	327	770
Commercial Portfolio Segment [Member]
Loans	306,978	335,996
Commercial Portfolio Segment [Member] | Pass [Member]
Loans	283,666	324,185
Commercial Portfolio Segment [Member] | Substandard [Member]
Loans	23,312	11,811
Commercial Portfolio Segment [Member] | Doubtful [Member]
Loans	0	0
Commercial Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member]
Loans	553,318	568,584
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Loans	547,740	548,853
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Loans	5,578	19,731
Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member]
Loans	0
Commercial Real Estate Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans	0	0
Construction Portfolio Segment [Member]
Loans	2,941	5,649
Construction Portfolio Segment [Member] | Pass [Member]
Loans	2,941	5,649
Construction Portfolio Segment [Member] | Substandard [Member]
Loans		0
Construction Portfolio Segment [Member] | Doubtful [Member]
Loans	0	0
Construction Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans	0	0
Residential Portfolio Segment [Member]
Loans	59,484	65,183
Residential Portfolio Segment [Member] | Pass [Member]
Loans	59,202	62,253
Residential Portfolio Segment [Member] | Substandard [Member]
Loans	282	2,930
Residential Portfolio Segment [Member] | Doubtful [Member]
Loans	0	0
Residential Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans	0	0
Consumer Portfolio Segment [Member]
Loans	305,863	312,570
Consumer Portfolio Segment [Member] | Pass [Member]
Loans	303,836	310,429
Consumer Portfolio Segment [Member] | Substandard [Member]
Loans	1,523	1,370
Consumer Portfolio Segment [Member] | Doubtful [Member]
Loans	177	1
Consumer Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans	$ 327	$ 770

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Note 4 - Loans and Allowance for Loan Losses - Loans by Delinquency and Nonaccrual Status (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current and accruing	$ 1,215,211	$ 1,275,068
Nonaccrual	6,140	5,926
Total loans	1,228,584	1,287,982
Financing Receivables, 30 to 59 Days Past Due [Member]
Past due and accruing	6,003	5,091
Financing Receivables, 60 to 89 Days Past Due [Member]
Past due and accruing	975	1,366
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due and accruing	255	531
Commercial Portfolio Segment [Member]
Current and accruing	306,396	334,908
Nonaccrual	271	297
Total loans	306,978	335,996
Commercial Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Past due and accruing	227	627
Commercial Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Past due and accruing	84	164
Commercial Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due and accruing	0	0
Commercial Real Estate Portfolio Segment [Member]
Current and accruing	544,476	561,883
Nonaccrual	5,673	5,433
Total loans	553,318	568,584
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Past due and accruing	2,809	1,143
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Past due and accruing	360	125
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due and accruing	0	0
Construction Portfolio Segment [Member]
Current and accruing	2,941	5,649
Nonaccrual	0	0
Total loans	2,941	5,649
Construction Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Past due and accruing	0	0
Construction Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Past due and accruing	0	0
Construction Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due and accruing	0	0
Residential Portfolio Segment [Member]
Current and accruing	59,184	65,183
Nonaccrual	0	0
Total loans	59,484	65,183
Residential Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Past due and accruing	300	0
Residential Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Past due and accruing	0	0
Residential Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due and accruing	0	0
Consumer Portfolio Segment [Member]
Current and accruing	302,214	307,445
Nonaccrual	196	196
Total loans	305,863	312,570
Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Past due and accruing	2,667	3,321
Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Past due and accruing	531	1,077
Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due and accruing	$ 255	$ 531

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Note 4 - Loans and Allowance for Loan Losses - Impaired Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Impaired loans with no related allowance recorded, recorded investment	$ 11,509	$ 14,949
Impaired loans with no related allowance recorded, unpaid principal balance	13,677	16,961
Impaired loans with an allowance recorded, recorded investment	12,418	11,554
Impaired loans with an allowance recorded, unpaid principal balance	12,421	11,556
Impaired loans with an allowance recorded, related allowance	4,991	4,985
Total impaired loans, recorded investment	23,927	26,503
Total impaired loans, unpaid principal balance	26,098	28,517
Commercial Portfolio Segment [Member]
Impaired loans with no related allowance recorded, recorded investment	1,183	1,212
Impaired loans with no related allowance recorded, unpaid principal balance	1,227	1,271
Impaired loans with an allowance recorded, recorded investment	9,634	9,764
Impaired loans with an allowance recorded, unpaid principal balance	9,634	9,764
Impaired loans with an allowance recorded, related allowance	4,777	4,814
Commercial Real Estate Portfolio Segment [Member]
Impaired loans with no related allowance recorded, recorded investment	9,766	13,169
Impaired loans with no related allowance recorded, unpaid principal balance	11,752	14,985
Impaired loans with an allowance recorded, recorded investment	2,784	1,790
Impaired loans with an allowance recorded, unpaid principal balance	2,787	1,792
Impaired loans with an allowance recorded, related allowance	214	171
Residential Portfolio Segment [Member]
Impaired loans with no related allowance recorded, recorded investment	206	208
Impaired loans with no related allowance recorded, unpaid principal balance	237	239
Consumer Portfolio Segment [Member]
Impaired loans with no related allowance recorded, recorded investment	354	360
Impaired loans with no related allowance recorded, unpaid principal balance	$ 461	$ 466

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Note 4 - Loans and Allowance for Loan Losses - Impaired Loans, Supplemental Schedule (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Average Recorded Investment	$ 25,216	$ 27,083
Recognized Interest Income	397	366
Commercial Portfolio Segment [Member]
Average Recorded Investment	10,897	11,292
Recognized Interest Income	175	118
Commercial Real Estate Portfolio Segment [Member]
Average Recorded Investment	13,755	14,500
Recognized Interest Income	215	237
Construction Portfolio Segment [Member]
Average Recorded Investment	0	0
Recognized Interest Income	0	0
Residential Portfolio Segment [Member]
Average Recorded Investment	207	748
Recognized Interest Income	4	4
Consumer Portfolio Segment [Member]
Average Recorded Investment	357	543
Recognized Interest Income	$ 3	$ 7

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Note 4 - Loans and Allowance for Loan Losses - Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Number of Contracts	17	18
Pre-Modification Carrying Value	$ 12,171	$ 14,162
Financing Receivable, Modifications, Recorded Investment	9,550	12,081
Period-End Individual Impairment Allowance	$ 39	$ 43
Commercial Portfolio Segment [Member]
Number of Contracts	7	7
Pre-Modification Carrying Value	$ 2,393	$ 2,393
Financing Receivable, Modifications, Recorded Investment	1,043	1,085
Period-End Individual Impairment Allowance	$ 39	$ 43
Commercial Real Estate Portfolio Segment [Member]
Number of Contracts	9	10
Pre-Modification Carrying Value	$ 9,537	$ 11,528
Financing Receivable, Modifications, Recorded Investment	8,301	10,788
Period-End Individual Impairment Allowance	$ 0	$ 0
Residential Portfolio Segment [Member]
Number of Contracts	1	1
Pre-Modification Carrying Value	$ 241	$ 241
Financing Receivable, Modifications, Recorded Investment	206	208
Period-End Individual Impairment Allowance	$ 0	$ 0

XML

Note 5 - Concentration of Credit Risk (Details Textual) $ in Thousands	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Unsecured Loan Limit, Percentage of Shareholders' Equity, California Financial Code	15.00%
Secured and Unsecured Loan Limit Percentage, California Financial Code	25.00%
Concentration Risk, Issuer Relationships	72
Loan Commitments and Standby Letters of Credit Related to Real Estate Loans	$ 48,623	$ 53,874
Concentration Risk, Aggregate Securities Amount	$ 5,000
Commercial Real Estate Loans [Member]
Loan To Value Ratio Requirement	75.00%
Residential Real Estate Loans [Member]
Loan To Value Ratio Requirement	80.00%
Aggregate Loans [Member] | Customer Concentration Risk [Member]
Concentration Risk, Issuer Relationships	36
Concentration Risk, Aggregate Loans Amount	$ 5,000

XML

Note 6 - Other Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
FRB Membership, Stock Subscription, Percent of Paid-Up Capital Stock and Surplus Requirement	6.00%
LIHTC Investments	$ 9,519	$ 10,119
Qualified Affordable Housing Project Investments, Commitment	2,299	$ 2,299
Contingent Commitment, Year 4 [Member]
Qualified Affordable Housing Project Investments, Commitment	722
Contingent Commitment, Year 7 [Member]
Qualified Affordable Housing Project Investments, Commitment	131
Contingent Commitment, Year 8 [Member]
Qualified Affordable Housing Project Investments, Commitment	90
Contingent Commitment, Year 9 or Thereafter [Member]
Qualified Affordable Housing Project Investments, Commitment	$ 1,356

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Note 6 - Other Assets - Summary of Other Assets (Details) - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017
Federal Reserve Bank stock	[1]	$ 14,069	$ 14,069
Other investments		158	158
Total equity securities without readily determinable fair values		14,227	14,227
Life insurance cash surrender value		54,742	54,101
Net deferred tax asset		42,842	33,112
Limited partnership investments		9,519	10,119
Interest receivable		22,538	23,557
Prepaid assets		4,532	4,906
Other assets		11,386	18,428
Total other assets		$ 159,786	$ 158,450

[1] A bank applying for membership in the Federal Reserve System is required to subscribe to stock in the Federal Reserve Bank (FRB) in its district in a sum equal to six percent of the bank's paid-up capital stock and surplus. One-half of the amount of the bank's subscription shall be paid to the FRB and the remaining half will be subject to call when deemed necessary by the Board of Governors of the Federal Reserve System.

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Note 6 - Other Assets - Amounts Recognized in Net Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Investment loss included in pre-tax income	$ 600	$ 450
Tax credits recognized in provision for income taxes	$ 336	$ 463

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Note 7 - Goodwill and Identifiable Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Goodwill and Intangible Asset Impairment, Total	$ 0		$ 0
Amortization Expense, Adjustment Resulting from a Change in Estimates of Useful Lives or Residual Values	$ 0	$ 0

XML

Note 7 - Goodwill and Identifiable Intangible Assets - Carrying Values of Goodwill (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Goodwill	$ 121,673	$ 121,673

XML

Note 7 - Goodwill and Identifiable Intangible Assets - Gross Carrying Amount of Intangible Assets and Accumulated Amortization (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Gross Carrying Amount	$ 67,108	$ 67,108
Accumulated Amortization	(63,828)	(63,258)
Core Deposits [Member]
Gross Carrying Amount	56,808	56,808
Accumulated Amortization	(53,528)	(52,987)
Mechant Draft Processing [Member]
Gross Carrying Amount	10,300	10,300
Accumulated Amortization	$ (10,300)	$ (10,271)

XML

Note 7 - Goodwill and Identifiable Intangible Assets - Estimated Future Amortization Expense for Identifiable Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
For the Three Months ended March 31, 2018 (actual)	$ 570	$ 800
Estimate for the remainder of year ending December 31, 2018	1,351
Estimate for year ending December 31, 2019	538
2020	287
2021	269
2022	252
2023	236
Core Deposits [Member]
For the Three Months ended March 31, 2018 (actual)	541
Estimate for the remainder of year ending December 31, 2018	1,351
Estimate for year ending December 31, 2019	538
2020	287
2021	269
2022	252
2023	236
Mechant Draft Processing [Member]
For the Three Months ended March 31, 2018 (actual)	29
Estimate for the remainder of year ending December 31, 2018
Estimate for year ending December 31, 2019
2020
2021
2022
2023

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Note 8 - Deposits and Borrowed Funds (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Demand Deposit Overdrafts	$ 788		$ 2,786
Interest Expense, Time Deposits, $100,000 or More	$ 97	$ 106

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Note 8 - Deposits and Borrowed Funds - Deposits Detail (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Noninterest-bearing deposits	$ 2,179,157	$ 2,197,526
Interest-bearing:
Transaction	924,081	904,245
Savings	1,540,192	1,494,024
Time deposits less than $100 thousand	114,301	117,848
Time deposits $100 thousand through $250 thousand	74,436	76,578
Time deposits more than $250 thousand	35,700	37,392
Total deposits	$ 4,867,867	$ 4,827,613

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Note 8 - Deposits and Borrowed Funds - Short-term Borrowed Funds (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Collateral Carrying Value	$ 241,641	$ 237,537
Short-term borrowed funds	65,356	58,471
US Government-sponsored Enterprises Debt Securities [Member]
Collateral Carrying Value	73,165	74,173
Agency Residential MBS [Member]
Collateral Carrying Value	64,266	58,251
Corporate Debt Securities [Member]
Collateral Carrying Value	$ 104,210	$ 105,113

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Note 9 - Fair Value Measurements (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Securities Selected for OTTI Analysis, Market Price, Threshold	95.00%
Loans and Leases Receivable, Allowance, Ending Balance	$ 23,081	$ 23,009
Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Appraisal Rate	10.00%

XML

Note 9 - Fair Value Measurements - Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Equity securities	$ 1,764	$ 1,800	$ 1,800
Debt securities available for sale	2,351,970		2,191,707
US Government-sponsored Enterprises Debt Securities [Member]
Debt securities available for sale	117,947		119,319
Agency Residential MBS [Member]
Debt securities available for sale	847,640		767,706
Non-agency Residential MBS [Member]
Debt securities available for sale	139		154
Agency Commercial MBS [Member]
Debt securities available for sale	2,190		2,219
US Government Agencies Debt Securities [Member]
Debt securities available for sale	1,520		1,590
US States and Political Subdivisions Debt Securities [Member]
Debt securities available for sale	180,635		185,221
Debt Security, Corporate, US [Member]
Debt securities available for sale	1,201,899		1,115,498
Fair Value, Measurements, Recurring [Member]
Equity securities	1,764		1,800
Debt securities available for sale	2,351,970		2,191,707
Total	2,353,734		2,193,507
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Equity securities
Debt securities available for sale
Total
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Equity securities	1,764		1,800
Debt securities available for sale	2,351,970		2,191,707
Total	2,353,734		2,193,507
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Equity securities
Debt securities available for sale
Total
Fair Value, Measurements, Recurring [Member] | Mutual Fund [Member]
Equity securities	1,764		1,800
Fair Value, Measurements, Recurring [Member] | Mutual Fund [Member] | Fair Value, Inputs, Level 1 [Member]
Equity securities
Fair Value, Measurements, Recurring [Member] | Mutual Fund [Member] | Fair Value, Inputs, Level 2 [Member]
Equity securities	1,764		1,800
Fair Value, Measurements, Recurring [Member] | Mutual Fund [Member] | Fair Value, Inputs, Level 3 [Member]
Equity securities
Fair Value, Measurements, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Debt securities available for sale	117,947		119,319
Fair Value, Measurements, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Debt securities available for sale
Fair Value, Measurements, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Debt securities available for sale	117,947		119,319
Fair Value, Measurements, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Debt securities available for sale
Fair Value, Measurements, Recurring [Member] | Agency Residential MBS [Member]
Debt securities available for sale	847,640		767,706
Fair Value, Measurements, Recurring [Member] | Agency Residential MBS [Member] | Fair Value, Inputs, Level 1 [Member]
Debt securities available for sale
Fair Value, Measurements, Recurring [Member] | Agency Residential MBS [Member] | Fair Value, Inputs, Level 2 [Member]
Debt securities available for sale	847,640		767,706
Fair Value, Measurements, Recurring [Member] | Agency Residential MBS [Member] | Fair Value, Inputs, Level 3 [Member]
Debt securities available for sale
Fair Value, Measurements, Recurring [Member] | Non-agency Residential MBS [Member]
Debt securities available for sale	139		154
Fair Value, Measurements, Recurring [Member] | Non-agency Residential MBS [Member] | Fair Value, Inputs, Level 1 [Member]
Debt securities available for sale
Fair Value, Measurements, Recurring [Member] | Non-agency Residential MBS [Member] | Fair Value, Inputs, Level 2 [Member]
Debt securities available for sale	139		154
Fair Value, Measurements, Recurring [Member] | Non-agency Residential MBS [Member] | Fair Value, Inputs, Level 3 [Member]
Debt securities available for sale
Fair Value, Measurements, Recurring [Member] | Agency Commercial MBS [Member]
Debt securities available for sale	2,190		2,219
Fair Value, Measurements, Recurring [Member] | Agency Commercial MBS [Member] | Fair Value, Inputs, Level 1 [Member]
Debt securities available for sale
Fair Value, Measurements, Recurring [Member] | Agency Commercial MBS [Member] | Fair Value, Inputs, Level 2 [Member]
Debt securities available for sale	2,190		2,219
Fair Value, Measurements, Recurring [Member] | Agency Commercial MBS [Member] | Fair Value, Inputs, Level 3 [Member]
Debt securities available for sale
Fair Value, Measurements, Recurring [Member] | US Government Agencies Debt Securities [Member]
Debt securities available for sale	1,520		1,590
Fair Value, Measurements, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Debt securities available for sale
Fair Value, Measurements, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Debt securities available for sale	1,520		1,590
Fair Value, Measurements, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Debt securities available for sale
Fair Value, Measurements, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]
Debt securities available for sale	180,635		185,221
Fair Value, Measurements, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Debt securities available for sale
Fair Value, Measurements, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Debt securities available for sale	180,635		185,221
Fair Value, Measurements, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Debt securities available for sale
Fair Value, Measurements, Recurring [Member] | Debt Security, Corporate, US [Member]
Debt securities available for sale	1,201,899		1,115,498
Fair Value, Measurements, Recurring [Member] | Debt Security, Corporate, US [Member] | Fair Value, Inputs, Level 1 [Member]
Debt securities available for sale
Fair Value, Measurements, Recurring [Member] | Debt Security, Corporate, US [Member] | Fair Value, Inputs, Level 2 [Member]
Debt securities available for sale	1,201,899		1,115,498
Fair Value, Measurements, Recurring [Member] | Debt Security, Corporate, US [Member] | Fair Value, Inputs, Level 3 [Member]
Debt securities available for sale

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Note 9 - Fair Value Measurements - Assets Measured at Fair Value on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Fair Value		$ 12,280
Total Losses		(219)
Fair Value, Inputs, Level 1 [Member]
Fair Value
Fair Value, Inputs, Level 2 [Member]
Fair Value
Fair Value, Inputs, Level 3 [Member]
Fair Value		12,280
Fair Value, Measurements, Nonrecurring [Member]
Fair Value	$ 12,913
Total Losses
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value	12,913
Other Real Estate Owned [Member]
Fair Value		1,426
Total Losses		(219)
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value		1,426
Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value	1,376
Total Losses
Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value
Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value
Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value	1,376
Impaired Loans [Member] | Commercial Portfolio Segment [Member]
Fair Value		4,950
Total Losses
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value		5,904
Total Losses
Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Commercial Portfolio Segment [Member]
Fair Value
Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value
Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial Portfolio Segment [Member]
Fair Value
Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Portfolio Segment [Member]
Fair Value		4,950
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value		$ 5,904
Impaired Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Portfolio Segment [Member]
Fair Value	4,857
Total Losses
Impaired Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value	6,680
Total Losses
Impaired Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Commercial Portfolio Segment [Member]
Fair Value
Impaired Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value
Impaired Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial Portfolio Segment [Member]
Fair Value
Impaired Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value
Impaired Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Portfolio Segment [Member]
Fair Value	4,857
Impaired Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value	$ 6,680

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Note 9 - Fair Value Measurements - Fair Value Estimates for Financial Instruments, Excluding Financial Instruments Recorded at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Debt securities held to maturity	$ 1,098,895	$ 1,155,342
Reported Value Measurement [Member]
Cash and due from banks	555,607	575,002
Debt securities held to maturity	1,114,287	1,158,864
Loans	1,205,503	1,264,973
Deposits	4,867,867	4,827,613
Short-term borrowed funds	65,356	58,471
Estimate of Fair Value Measurement [Member]
Cash and due from banks	555,607	575,002
Debt securities held to maturity	1,098,895	1,155,342
Loans	1,244,670	1,257,811
Deposits	4,864,792	4,824,586
Short-term borrowed funds	65,356	58,471
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and due from banks	555,607	575,002
Debt securities held to maturity
Loans
Deposits
Short-term borrowed funds
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Cash and due from banks
Debt securities held to maturity	1,098,895	1,155,342
Loans
Deposits	4,643,430	4,595,795
Short-term borrowed funds	65,356	58,471
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Cash and due from banks
Debt securities held to maturity
Loans	1,244,670	1,257,811
Deposits	221,362	228,791
Short-term borrowed funds

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Note 10 - Commitments and Contingent Liabilities (Details Textual) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Unfunded Loan Commitments	$ 282,428	$ 272,646
Other Liabilities [Member]
Reserve for Unfunded Commitments	2,308	2,308
Financial Standby Letter of Credit [Member]
Letters of Credit Outstanding, Amount	3,849	19,263
Commercial Standby Letters of Credit [Member]
Letters of Credit Outstanding, Amount	0	$ 0
Customer Refunds [Member]
Loss Contingency Accrual, Ending Balance	$ 5,542

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Note 11 - Earnings Per Common Share (Details Textual) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Employee Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	491	299

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Note 11 - Earnings Per Common Share - Earnings Per Common Share and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Net income (numerator)	$ 17,506	$ 15,049
Basic earnings per common share
Weighted average number of common shares outstanding - basic (in shares)	26,532	26,171
Basic earnings per common share (in dollars per share)	$ 0.66	$ 0.58
Diluted earnings per common share
Weighted average number of common shares outstanding - basic (in shares)	26,532	26,171
Add common stock equivalents for options (in shares)	133	158
Weighted average number of common shares outstanding - diluted (denominator) (in shares)	26,665	26,329
Diluted earnings per common share (in dollars per share)	$ 0.66	$ 0.57