10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

[X] 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

Commission File Number: 0-12507

ARROW FINANCIAL CORPORATION

(Exact name of registrant as specified in its charter)

New York	22-2448962
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
250 GLEN STREET, GLENS FALLS, NEW YORK 12801
(Address of principal executive offices)   (Zip Code)
Registrant’s telephone number, including area code:   (518) 745-1000

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. x  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).  x  Yes      No

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

Large accelerated filer	Accelerated filer   x
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 standard 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      x  No

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.

Class	Outstanding as of April 30, 2018
Common Stock, par value $1.00 per share	13,969,371

ARROW FINANCIAL CORPORATION

FORM 10-Q

TABLE OF CONTENTS

	Page
PART I - FINANCIAL INFORMATION
Item 1. Financial Statements	3
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations	37
Item 3. Quantitative and Qualitative Disclosures About Market Risk	58
Item 4. Controls and Procedures	58
PART II - OTHER INFORMATION
Item 1. Legal Proceedings	59
Item 1.A. Risk Factors	59
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	59
Item 3. Defaults Upon Senior Securities	59
Item 4. Mine Safety Disclosures	59
Item 5. Other Information	60
Item 6. Exhibits	60
SIGNATURES	61

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PART I - FINANCIAL INFORMATION

Item 1.

FINANCIAL STATEMENTS

ARROW FINANCIAL CORPORATION AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS (In Thousands, Except Share and Per Share Amounts) (Unaudited)
	March 31, 2018			December 31, 2017			March 31, 2017
ASSETS
Cash and Due From Banks	$	29,525		$	42,562		$	50,158
Interest-Bearing Deposits at Banks	70,747			30,276			14,645
Investment Securities:
Available-for-Sale	305,589			300,200			347,159
Held-to-Maturity (Approximate Fair Value of $324,937 at March 31, 2018; $335,901 at December 31, 2017; and $335,105 at March 31, 2017)	330,124			335,907			335,211
Equity Securities	1,579			—			—
Other Investments	4,780			9,949			6,826
Loans	1,993,037			1,950,770			1,810,805
Allowance for Loan Losses	(19,057		)	(18,586		)	(17,216		)
Net Loans	1,973,980			1,932,184			1,793,589
Premises and Equipment, Net	27,815			27,619			26,585
Goodwill	21,873			21,873			21,873
Other Intangible Assets, Net	2,172			2,289			2,575
Other Assets	58,503			57,606			57,765
Total Assets	$	2,826,687		$	2,760,465		$	2,656,386
LIABILITIES
Noninterest-Bearing Deposits	$	452,347		$	441,945		$	402,506
Interest-Bearing Checking Accounts	944,161			907,315			959,170
Savings Deposits	762,220			694,573			696,625
Time Deposits over $250,000	85,403			38,147			30,993
Other Time Deposits	167,142			163,136			167,242
Total Deposits	2,411,273			2,245,116			2,256,536
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	74,957			64,966			32,035
Federal Home Loan Bank Overnight Advances	—			105,000			32,000
Federal Home Loan Bank Term Advances	45,000			55,000			55,000
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts	20,000			20,000			20,000
Other Liabilities	22,723			20,780			24,704
Total Liabilities	2,573,953			2,510,862			2,420,275
STOCKHOLDERS’ EQUITY
Preferred Stock, $5 Par Value; 1,000,000 Shares Authorized	—			—			—
Common Stock, $1 Par Value; 20,000,000 Shares Authorized (18,481,301 Shares Issued and Outstanding at March 31, 2018; 18,481,301 at December 31, 2017 and 17,943,201 at March 31, 2017)	18,481			18,481			17,943
Additional Paid-in Capital	290,980			290,219			271,517
Retained Earnings	34,093			28,818			31,901
Unallocated ESOP Shares (9,643 Shares at March 31, 2018; 9,643 Shares at December 31, 2017 and 19,466 Shares at March 31, 2017)	(200		)	(200		)	(400		)
Accumulated Other Comprehensive Loss	(11,285		)	(8,514		)	(6,680		)
Treasury Stock, at Cost (4,516,444 Shares at March 31, 2018; 4,541,524 Shares at December 31, 2017 and 4,442,292 Shares at March 31, 2017)	(79,335		)	(79,201		)	(78,170		)
Total Stockholders’ Equity	252,734			249,603			236,111
Total Liabilities and Stockholders’ Equity	$	2,826,687		$	2,760,465		$	2,656,386

See Notes to Unaudited Interim Consolidated Financial Statements.

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ARROW FINANCIAL CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF INCOME (In Thousands, Except Per Share Amounts) (Unaudited)
	Three Months Ended March 31,
	2018		2017
INTEREST AND DIVIDEND INCOME
Interest and Fees on Loans	$	18,858	$	16,402
Interest on Deposits at Banks	134		60
Interest and Dividends on Investment Securities:
Fully Taxable	1,893		1,990
Exempt from Federal Taxes	1,533		1,545
Total Interest and Dividend Income	22,418		19,997
INTEREST EXPENSE
Interest-Bearing Checking Accounts	387		331
Savings Deposits	522		291
Time Deposits over $250,000	204		55
Other Time Deposits	259		228
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	16		7
Federal Home Loan Bank Advances	414		445
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts	214		179
Total Interest Expense	2,016		1,536
NET INTEREST INCOME	20,402		18,461
Provision for Loan Losses	746		358
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	19,656		18,103
NONINTEREST INCOME
Income From Fiduciary Activities	2,197		2,018
Fees for Other Services to Customers	2,380		2,256
Insurance Commissions	1,903		2,198
Net Unrealized Gain on Equity Securities	18		—
Net Gain on Sales of Loans	38		45
Other Operating Income	353		178
Total Noninterest Income	6,889		6,695
NONINTEREST EXPENSE
Salaries and Employee Benefits	9,369		9,147
Occupancy Expenses, Net	2,541		2,544
FDIC Assessments	217		226
Other Operating Expense	3,829		3,558
Total Noninterest Expense	15,956		15,475
INCOME BEFORE PROVISION FOR INCOME TAXES	10,589		9,323
Provision for Income Taxes	2,058		2,692
NET INCOME	$	8,531	$	6,631
Average Shares Outstanding 1:
Basic	13,936		13,889
Diluted	14,016		14,001
Per Common Share:
Basic Earnings	$	0.61	$	0.48
Diluted Earnings	0.61		0.47

¹ 2017 Share and Per Share Amounts have been restated for the September 28, 20173% stock dividend.

See Notes to Unaudited Interim Consolidated Financial Statements.

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ARROW FINANCIAL CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (In Thousands) (Unaudited)
	Three Months Ended March 31,
	2018			2017
Net Income	$	8,531		$	6,631
Other Comprehensive Income, Net of Tax:
Net Unrealized Securities Holding Gains (Losses) Arising During the Period	(2,485		)	47
Amortization of Net Retirement Plan Actuarial Loss	46			109
Accretion of Net Retirement Plan Prior Service Credit	(1		)	(2		)
Other Comprehensive Income (Loss)	(2,440		)	154
Comprehensive Income	$	6,091		$	6,785

See Notes to Unaudited Interim Consolidated Financial Statements.

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ARROW FINANCIAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY

(In Thousands, Except Share and Per Share Amounts)

(Unaudited)

	Common Stock		Additional Paid-In Capital		Retained Earnings			Unallo-cated ESOP Shares			Accumu-lated Other Com- prehensive Loss			Treasury Stock			Total
Balance at December 31, 2017	$	18,481	$	290,219	$	28,818		$	(200	)	$	(8,514	)	$	(79,201	)	$	249,603
Net Income	—		—		8,531			—			—			—			8,531
Other Comprehensive Loss	—		—		—			—			(2,440		)	—			(2,440		)
Impact of the Adoption of ASU 2014-09	—		—		(102		)	—			—			—			(102		)
Impact of the Adoption of ASU 2016-01	—		—		331			—			(331		)	—			—
Cash Dividends Paid, $.25 per Share	—		—		(3,485		)	—			—			—			(3,485		)
Stock Options Exercised, Net  (27,662 Shares)	—		307		—			—			—			303			610
Shares Issued Under the Employee Stock   Purchase Plan  (3,674 Shares)	—		76		—			—			—			40			116
Shares Issued for Dividend   Reinvestment Plans (12,459 Shares)	—		289		—			—			—			142			431
Stock-Based Compensation Expense	—		89		—			—			—			—			89
Purchase of Treasury Stock   (18,715 Shares)	—		—		—			—			—			(619		)	(619		)
Balance at March 31, 2018	$	18,481	$	290,980	$	34,093		$	(200	)	$	(11,285	)	$	(79,335	)	$	252,734
Balance at December 31, 2016	$	17,943	$	270,880	$	28,644		$	(400	)	$	(6,834	)	$	(77,381	)	$	232,852
Net Income	—		—		6,631			—			—			—			6,631
Other Comprehensive Income	—		—		—			—			154			—			154
Cash Dividends Paid, $.243 per Share 1	—		—		(3,374		)	—			—			—			(3,374		)
Stock Options Exercised, Net  (16,721 Shares)	—		187		—			—			—			201			388
Shares Issued Under the Directors’ Stock   Plan  (554 Shares)	—		14		—			—			—			8			22
Shares Issued Under the Employee Stock   Purchase Plan  (3,049 Shares)	—		69		—			—			—			37			106
Shares Issued for Dividend   Reinvestment Plans (12,447 Shares)	—		284		—			—			—			141			425
Stock-Based Compensation Expense	—		83		—			—			—			—			83
Purchase of Treasury Stock  (33,970 Shares)	—		—		—			—			—			(1,176		)	(1,176		)
Balance at March 31, 2017	$	17,943	$	271,517	$	31,901		$	(400	)	$	(6,680	)	$	(78,170	)	$	236,111

¹ Cash dividends paid per share have been adjusted for the September 28, 20173% stock dividend.

See Notes to Unaudited Interim Consolidated Financial Statements.

# 6

ARROW FINANCIAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Dollars in Thousands)

(Unaudited)

	Three Months Ended March 31,
Cash Flows from Operating Activities:	2018			2017
Net Income	$	8,531		$	6,631
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Provision for Loan Losses	746			358
Depreciation and Amortization	1,199			1,524
Net Unrealized Gains on Equity Securities	(18		)	—
Loans Originated and Held-for-Sale	(12,326		)	(2,186		)
Proceeds from the Sale of Loans Held-for-Sale	12,520			1,818
Net Gains on the Sale of Loans	(38		)	(45		)
Net Losses on the Sale of Premises and Equipment, Other Real Estate Owned and Repossessed Assets	32			7
Contributions to Retirement Benefit Plans	(134		)	(165		)
Deferred Income Tax Benefit	(220		)	(82		)
Shares Issued Under the Directors’ Stock Plan	—			22
Stock-Based Compensation Expense	89			83
Tax Benefit from Exercise of Stock Options	112			45
Net Increase in Other Assets	(395		)	(886		)
Net Increase in Other Liabilities	2,185			2,817
Net Cash Provided By Operating Activities	12,283			9,941
Cash Flows from Investing Activities:
Proceeds from the Maturities and Calls of Securities Available-for-Sale	9,380			11,826
Purchases of Securities Available-for-Sale	(19,979		)	(12,324		)
Proceeds from the Maturities and Calls of Securities Held-to-Maturity	6,459			10,474
Purchases of Securities Held-to-Maturity	(921		)	(556		)
Net Increase in Loans	(42,968		)	(57,637		)
Proceeds from the Sales of Premises and Equipment, Other Real Estate Owned and Repossessed Assets	437			304
Purchase of Premises and Equipment	(627		)	(247		)
Proceeds from the Sale of a Subsidiary, Net	—			23
Net Decrease in Other Investments	5,169			4,086
Net Cash Used By Investing Activities	(43,050		)	(44,051		)
Cash Flows from Financing Activities:
Net Increase in Deposits	166,157			139,990
Net Decrease in Short-Term Federal Home Loan Bank Borrowings	(105,000		)	(91,000		)
Net Increase (Decrease) in Short-Term Borrowings	9,991			(3,801		)
Repayments of Federal Home Loan Bank Term Advances	(10,000		)	—
Purchase of Treasury Stock	(619		)	(1,176		)
Stock Options Exercised, Net	610			388
Shares Issued Under the Employee Stock Purchase Plan	116			106
Shares Issued for Dividend Reinvestment Plans	431			425
Cash Dividends Paid	(3,485		)	(3,374		)
Net Cash Provided By Financing Activities	58,201			41,558
Net Increase in Cash and Cash Equivalents	27,434			7,448
Cash and Cash Equivalents at Beginning of Period	72,838			57,355
Cash and Cash Equivalents at End of Period	$	100,272		$	64,803
Supplemental Disclosures to Statements of Cash Flow Information:
Interest on Deposits and Borrowings	$	1,949		$	1,539
Income Taxes	390			294
Non-cash Investing and Financing Activity:
Transfer of Loans to Other Real Estate Owned and Repossessed Assets	270			359

See Notes to Unaudited Interim Consolidated Financial Statements.

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NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Note 1.     ACCOUNTING POLICIES

In the opinion of the management of Arrow Financial Corporation (Arrow, the Company, we, or us), the accompanying unaudited interim consolidated financial statements contain all of the adjustments necessary to present fairly the financial position as of March 31, 2018, December 31, 2017 and March 31, 2017; the results of operations for the three-month periods ended March 31, 2018 and 2017; the consolidated statements of comprehensive income for the three-month periods ended March 31, 2018 and 2017; the changes in stockholders' equity for the three-month periods ended March 31, 2018 and 2017; and the cash flows for the three-month periods ended March 31, 2018 and 2017. All such adjustments are of a normal recurring nature.

Management’s Use of Estimates -The preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of income and expenses during the reporting period.  Our most significant estimate is the allowance for loan losses. Other estimates include the evaluation of other-than-temporary impairment of investment securities, goodwill impairment, pension and other postretirement liabilities and an analysis of a need for a valuation allowance for deferred tax assets. Actual results could differ from those estimates.

A material estimate that is particularly susceptible to significant change in the near term is the allowance for loan losses.  In connection with the determination of the allowance for loan losses, management obtains appraisals for properties.  The allowance for loan losses is management’s best estimate of probable loan losses incurred as of the balance sheet date.  While management uses available information to recognize losses on loans, future adjustments to the allowance for loan losses may be necessary based on changes in economic conditions.  

The unaudited interim consolidated financial statements should be read in conjunction with the audited annual consolidated financial statements of Arrow for the year ended December 31, 2017, included in Arrow's Annual Report on Form 10-K for the year ended December 31, 2017.

Recently Adopted and Recently Issued Accounting Standards

The following accounting standards have been adopted in the first quarter of 2018:

ASU 2016-01 "Recognition and Measurement of Financial Assets and Financial Liabilities" significantly changed the income statement impact of equity investments. For Arrow, the standard became effective for the first quarter of 2018, and requires that equity investments be measured at fair value, with changes in fair value measured in net income. The cumulative effect of the January 1, 2018 adoption was an increase to retained earnings of $331 thousand with a corresponding decrease to Accumulated Other Comprehensive Loss. For periods prior to January 1, 2018, equity securities were classified as available-for-sale and stated at fair value with unrealized gains and losses reported as a separate component of accumulated other comprehensive income, net of tax. ASU 2016-01 also emphasized the existing requirement to use exit prices to measure fair value for disclosure purposes and clarifies that entities not make use of a practicability exception in determining the fair value of loans. Accordingly, we refined the calculation used to determine the disclosed fair value of our loans as part of adopting this standard. See Note 9. Fair Value of Financial Instruments.

    ASU 2016-15, "Statement of Cash Flows (Topic 230) - Classification of Certain Cash Receipts and Cash Payments" will reduce existing diversity in practice with respect to eight specific cash flow issues. The amendment is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes the interim period. An entity that elects early adoption must adopt all of the amendments in the same period. The amendments in this update should be applied using a retrospective transition method to each period presented. Arrow adopted this ASU in the first quarter of 2018.

ASU 2017-01 "Business Combinations" defines when a set of assets and activities constitutes a business for the purposes of determining whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. Previously, the three elements required to be present in a business are inputs, processes, and outputs. The amendments in this update allow for a business to consist of inputs, processes, and the ability to create output. For Arrow, the standard became effective in the first quarter of 2018. This update had no effect on our accounting for acquisitions and dispositions of businesses.

ASU 2017-07 "Compensation-Retirement Benefits" improves the presentation of net periodic pension cost and net periodic post-retirement benefit cost by requiring that an employer disaggregate the service cost component from the other components of net benefit cost. The amendments also provide explicit guidance on how to present the service cost component and the other components of net benefit cost in the income statement and allow only the service cost component of net benefit cost to be eligible for capitalization. For Arrow, the standard became effective in the first quarter of 2018. In accordance with the practical expedient adoption method, for all periods presented Arrow used the amounts disclosed in the retirement plans footnote for the prior period retrospective reclassification of the non-service cost components out of salaries and benefits and into other operating expenses. The adoption of this change in accounting for pension costs did not have a material impact on our financial position or the results of operations.

ASU 2017-09 "Compensation-Stock Compensation" provides guidance about which changes to the terms and conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. The guidance highlights the requirements for applying modification accounting and the exception criteria relating to changes in share-based payment terms. For Arrow, the standard became

# 8

effective in the first quarter of 2018. The adoption of this change in accounting for share-based payment awards did not have a material impact on our financial position or the results of operations in periods subsequent to its adoption.

ASU 2014-09 - "Revenue from Contracts with Customers (Topic 606)" clarifies the principles for recognizing revenue and supersedes most current revenue recognition guidance. The ASU is intended to clarify and converge the revenue recognition principles under current generally accepted accounting principles (GAAP) to streamline revenue recognition requirements in addition to expanding required revenue recognition disclosures. In August 2015, the Financial Accounting Standards Board (FASB) issued ASU 2015-14, Deferral of the Effective Date, which provides a one year deferral to the effective date, therefore, ASU 2014-09 is effective for public companies for annual periods, and interim periods within those annual periods, beginning on or after December 15, 2017. As such, the Company adopted ASU 2014-09 as of January 1, 2018 using the modified retrospective approach, and have identified the recognition of revenue related to specific types of fiduciary activities and specific types of revenue from insurance commissions to be in the scope of this guidance. Regarding fiduciary activities, under prior GAAP, revenue was recognized from settling client estates over the time period the work was performed. With the adoption of Topic 606, revenue will be recognized when the performance obligation is completed, which is when the settlement of the client estate is closed. This change will not have a material impact on our consolidated financial statements. Regarding revenue from property and casualty insurance policies in which the client elected to pay premiums in installments, under prior GAAP, revenue was recognized when the client premiums were billed. With the adoption of Topic 606, revenue is recognized when the performance obligation is substantially completed , i.e., when the insurance policy is issued. This change will not have a material impact to our consolidated financial statements. The adoption of Topic 606 related to the previously described fiduciary activity and insurance commission required a cumulative effect adjustment as of January 1, 2018 to decrease retained earnings by $102 thousand. Additional information related to net revenue generated from contracts with customers is as follows:

Revenue Recognition - Accounting Standard Codification ("ASC") Topic 606, Revenue from Contracts with Customers ("ASC Topic 606"), establishes principles for reporting information about the nature, amount, timing and uncertainty of revenue and cash flows arising from the entity's contracts to provide goods or services to customers. The core principle requires an entity to recognize revenue to depict the transfer of promised goods or services a customer in an amount that reflects the consideration to which the entity expects to receive in exchange for those goods or services as performance obligations are satisfied.

The majority of the Company's revenue-generating transactions are not subject to ASC Topic 606, including revenue generated from financial instruments, such as loans and investment securities which are presented in our consolidated income statements as components of net interest income. The following is a description of principal activities from which the Company generates its revenue from noninterest income sources that are within the scope of ASC Topic 606:

Income From Fiduciary Activities: represents revenue derived mainly through the management of client investments which is based on the market value of these assets and the fee schedule contained in the applicable account management agreement. Since the revenue is mainly based on the market value of assets, this amount can be volatile as financial markets increase and decrease based on various economic factors. The terms of the account management agreements generally specify that the performance obligations are completed each quarter. Accordingly, we mainly recognize revenue from fiduciary activities on a quarterly basis.

Fees for Other Services to Customers: represents general service fees for monthly deposit account maintenance and account activity plus fees from other deposit-based services. Revenue is recognized when the performance obligation is completed, which is generally on a monthly basis for account maintenance services, or upon the completion of a deposit-related transaction. Payment for such performance obligations are generally received at the time the performance obligations are satisfied.

Insurance Commissions: represents commissions and fees paid by insurance carriers for both property and casualty insurance policies, and for services performed for employment benefits clients. Revenue from our property and casualty business is recognized when our performance obligation is satisfied, which is generally the effective date of the bound coverage since there are no significant performance obligations remaining. Revenue from our employment benefit brokerage business is recognized when our benefit servicing performance obligations are satisfied, generally on a monthly basis.

The following accounting standards have been issued and become effective for the Company at a future date:

ASU 2016-02 "Leases" will require the recognition of operating leases. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). ASU 2016-02 requires lessees to recognize right of use assets and lease liabilities on the balance sheet for all leases with terms longer than 12 months. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize a right of use asset and lease liability. Additionally, when measuring assets and liabilities arising from a lease, optional payments should be included only if the lessee is reasonably certain to exercise an option to extend the lease, exercise a purchase option or not exercise an option to terminate the lease. In January 2018, the FASB issued ASU 2018-01, Leases (Topic 842): Land Easement Practical Expedient for Transition to Topic 842. ASU 2018-01 was issued to address concerns about the cost and complexity of complying with the transition provisions of ASU 2018-01. Early adoption is permitted in any interim or annual period. For Arrow, the standard becomes effective in the first quarter of 2019. We do not expect that the adoption of this change in accounting for operating leases will have a material impact on our financial position or the results of operations in periods subsequent to its adoption. As of March 31, 2018, we have less than $2.2 million in minimum lease payments for existing operating leases of branch and insurance locations with varying expiration dates from 2018 to 2031.

ASU 2016-13 "Financial Instruments - Credit Losses" will change the way we and other financial entities recognize losses on credit instruments, primarily loans and available-for-sale securities. Currently, loan losses are recognized using an "incurred loss" methodology that delays recognition until it is probable a loss has been incurred. Under the ASU, the incurred loss model will be replaced with a methodology that reflects current expected credit losses (CECL) over the life of the instrument and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. Currently, credit losses on available-for-sale securities reduce the carrying value of the instrument and cannot be reversed. Under the ASU, the amount of the credit loss is carried as a valuation allowance and can be reversed. For Arrow, the standard is effective for the first quarter of 2020 and early adoption is allowed in 2019. We plan on adopting the standard in the first quarter of 2020, in order to maximize the accumulation of data needed to calculate the new

# 9

CECL methodologies. The ASU describes several acceptable methodologies for calculating expected losses on a loan or a pool of loans. Although other methodologies are allowed, we plan on only using the methodologies described in the ASU. Arrow is still evaluating criteria for loan segments and the appropriate methodology for each segment. We expect that the use of the CECL methodology will result in higher levels of the allowance for loan losses than the incurred loss model. The initial adjustment will not be reported in earnings, but as the cumulative effect of a change in accounting principle. We expect that the adoption of the new standard will have a material impact on the level of the allowance for loan losses, but we do not expect that the periodic provision for loan losses to be materially higher than our historic amounts. The adoption of the standard will have an impact on shareholders’ equity, but we expect that we will remain well-capitalized under current regulatory calculations. The standard also requires new disclosures about the loan portfolio. Both the FASB and banking regulators have made estimates of the range of percentage increases in the allowance for loan losses. One FASB board member has commented that the initial range of 30% to 50% for increases in bank allowances is too high, and that the most likely range is in the single digits, although some institutions will experience higher increases. Due to our historical low level of loan losses and our current conservative underwriting standards, we believe that the increase in our loan loss allowance will be in the single digits. The FASB’s Transition Research Group for credit losses still has several outstanding unresolved questions, some of which may have a significant impact on CECL calculations. In 2016 we selected a third-party software product to calculate our CECL methodologies. We also began to accumulate a database of monthly loan data, beginning with June 2015, of the fields needed to make the loss calculations under the new CECL methodologies. During 2018, we plan on refining our loan segment criteria and, for most segments, we will calculate expected losses (for an expanding database) using two or more of the applicable methodologies before determining the most appropriate methodology for each loan segment or sub-segment.     

ASU 2017-04 "Intangibles-Goodwill and Other" changes the procedures for evaluating impairment of goodwill. Prior to the adoption of this standard, entities were required to perform procedures to determine the fair value of the underlying assets and liabilities following the guidance for determining the fair value of assets and liabilities in a business combination. This additional step to impairment testing has been eliminated. Under this standard, entities should perform goodwill impairment testing by comparing the fair value of a reporting unit to its carrying value. This change should reduce the cost and complexity of evaluating goodwill for impairment. For Arrow, the standard becomes effective in the first quarter of 2019, however, early adoption is permitted. This amendment will not affect our assessment of goodwill impairment since we currently perform the analysis of comparing carrying value to fair value of our reporting units that have goodwill and we have not had to perform a Step 2 Impairment Test to date.    

ASU 2017-08 "Receivables-Nonrefundable Fees and Other Costs" amends the amortization period for certain purchased callable debt securities held at a premium. This shortens the amortization period for the premium to the earliest call date. Under GAAP, entities generally amortize the premium as an adjustment of yield over the contractual life of the instrument. For Arrow, the standard becomes effective in the first quarter of 2019. We do not expect that the adoption of this change in accounting for certain callable debt securities will have a material impact on our financial position or the results of operations in periods subsequent to its adoption.

# 10

Note 2.    INVESTMENT SECURITIES (In Thousands)

Management determines the appropriate classification of securities at the time of purchase.  Securities reported as held-to-maturity are those debt securities which Arrow has both the positive intent and ability to hold to maturity and are stated at amortized cost.  Securities available-for-sale are reported at fair value, with unrealized gains and losses reported in accumulated other comprehensive income or loss, net of taxes. Beginning January 1, 2018, upon adoption of ASU 2016-01, equity securities with readily determinable fair values are stated at fair value with realized and unrealized gains and losses reported in income. For periods prior to January 1, 2018, equity securities were classified as available-for-sale and stated at fair value with unrealized gains and losses reported as a separate component of accumulated other comprehensive income, net of tax.

The following table is the schedule of Available-For-Sale Securities at March 31, 2018, December 31, 2017 and March 31, 2017:

Available-For-Sale Securities
	U.S. Government & Agency Obligations		State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Mutual Funds and Equity Securities		Total Available- For-Sale Securities
March 31, 2018
Available-For-Sale Securities,   at Amortized Cost	$	60,264	$	9,741	$	240,033	$	1,000	$	—	$	311,038
Available-For-Sale Securities,   at Fair Value	59,657		9,743		235,389		800		—		305,589
Gross Unrealized Gains	—		7		347		—		—		354
Gross Unrealized Losses	607		5		4,991		200		—		5,803
Available-For-Sale Securities,   Pledged as Collateral											229,857
Maturities of Debt Securities,   at Amortized Cost:
Within One Year	$	13,018	$	8,363	$	891	$	—			$	22,272
From 1 - 5 Years	47,246		650		121,977		—				169,873
From 5 - 10 Years	—		208		71,473		—				71,681
Over 10 Years	—		520		45,692		1,000				47,212
Maturities of Debt Securities,   at Fair Value:
Within One Year	$	12,949	$	8,360	$	896	$	—			$	22,205
From 1 - 5 Years	46,708		655		118,649		—				166,012
From 5 - 10 Years	—		208		70,140		—				70,348
Over 10 Years	—		520		45,704		800				47,024
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	17,128	$	7,421	$	112,078	$	—	$	—	$	136,627
12 Months or Longer	42,529		—		80,759		800		—		124,088
Total	$	59,657	$	7,421	$	192,837	$	800	$	—	$	260,715
Number of Securities in a   Continuous Loss Position	14		29		69		1		—		113
Unrealized Losses on   Securities in a Continuous   Loss Position:
Less than 12 Months	$	266	$	6	$	1,940	$	—	$	—	$	2,212
12 Months or Longer	341		—		3,050		200		—		3,591
Total	$	607	$	6	$	4,990	$	200	$	—	$	5,803
Disaggregated Details:
US Treasury Obligations,   at Amortized Cost	$	—
US Treasury Obligations, at Fair Value	—
US Agency Obligations, at Amortized Cost	60,264
US Agency Obligations, at Fair Value	59,657

# 11

Available-For-Sale Securities
	U.S. Government & Agency Obligations		State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Mutual Funds and Equity Securities		Total Available- For-Sale Securities
US Government Agency   Securities, at Amortized Cost					$	59,446
US Government Agency   Securities, at Fair Value					59,469
Government Sponsored Entity   Securities, at Amortized Cost					180,587
Government Sponsored Entity Securities, at Fair Value					175,920
December 31, 2017
Available-For-Sale Securities,   at Amortized Cost	$	60,328	$	10,351	$	229,077	$	1,000	$	1,120	$	301,876
Available-For-Sale Securities,   at Fair Value	59,894		10,349		227,596		800		1,561		300,200
Gross Unrealized Gains	—		9		485		—		441		935
Gross Unrealized Losses	434		11		1,966		200		—		2,611
Available-For-Sale Securities,   Pledged as Collateral,   at Fair Value											183,052
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	20,348	$	8,498	$	70,930	$	—	$	—	$	99,776
12 Months or Longer	39,546		—		80,759		800		—		121,105
Total	$	59,894	$	8,498	$	151,689	$	800	$	—	$	220,881
Number of Securities in a   Continuous Loss Position	14		36		55		1		—		106
Unrealized Losses on   Securities in a Continuous   Loss Position:
Less than 12 Months	$	172	$	11	$	363	$	—	$	—	$	546
12 Months or Longer	262		—		1,603		200		—		2,065
Total	$	434	$	11	$	1,966	$	200	$	—	$	2,611
Disaggregated Details:
US Treasury Obligations,   at Amortized Cost	$	—
US Treasury Obligations, at Fair Value	—
US Agency Obligations, at Amortized Cost	60,328
US Agency Obligations, at Fair Value	59,894
US Government Agency   Securities, at Amortized Cost					$	40,832
US Government Agency   Securities, at Fair Value					40,832
Government Sponsored Entity   Securities, at Amortized Cost					188,245
Government Sponsored Entity Securities, at Fair Value					186,764

# 12

Available-For-Sale Securities
	U.S. Government & Agency Obligations		State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Mutual Funds and Equity Securities		Total Available- For-Sale Securities
March 31, 2017
Available-For-Sale Securities,   at Amortized Cost	$	147,012	$	25,467	$	170,601	$	3,501	$	1,120	$	347,701
Available-For-Sale Securities,   at Fair Value	147,231		25,507		169,728		3,298		1,395		347,159
Gross Unrealized Gains	270		40		934		—		275		1,519
Gross Unrealized Losses	52		—		1,806		203		—		2,061
Available-For-Sale Securities,   Pledged as Collateral											295,797
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	42,937	$	828	$	127,931	$	2,498	$	—	$	174,194
12 Months or Longer	—		—		—		800		—		800
Total	$	42,937	$	828	$	127,931	$	3,298	$	—	$	174,994
Number of Securities in a   Continuous Loss Position	11		5		41		4		—		61
Unrealized Losses on Securities   in a Continuous Loss Position:
Less than 12 Months	$	52	$	—	$	1,806	$	3	$	—	$	1,861
12 Months or Longer	—		—		—		200		—		200
Total	$	52	$	—	$	1,806	$	203	$	—	$	2,061
Disaggregated Details:
US Treasury Obligations, at Amortized Cost	$	54,649
US Treasury Obligations, at Fair Value	$	54,695
US Agency Obligations, at Amortized Cost	$	92,363
US Agency Obligations, at Fair Value	92,536
US Government Agency   Securities, at Amortized Cost					$	1,616
US Government Agency   Securities, at Fair Value					1,625
Government Sponsored Entity   Securities, at Amortized Cost					168,985
Government Sponsored Entity Securities, at Fair Value					168,103

# 13

The following table is the schedule of Held-To-Maturity Securities at March 31, 2018, December 31, 2017 and March 31, 2017:

Held-To-Maturity Securities
	State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Total Held-To Maturity Securities
March 31, 2018
Held-To-Maturity Securities,   at Amortized Cost	$	272,938	$	57,186	$	—	$	330,124
Held-To-Maturity Securities,   at Fair Value	268,605		56,333		—		324,938
Gross Unrealized Gains	646		—		—		646
Gross Unrealized Losses	4,979		853		—		5,832
Held-To-Maturity Securities,   Pledged as Collateral							307,273
Maturities of Debt Securities,   at Amortized Cost:
Within One Year	$	35,115	$	—	$	—	$	35,115
From 1 - 5 Years	81,312		51,243		—		132,555
From 5 - 10 Years	153,111		5,943		—		159,054
Over 10 Years	3,400		—		—		3,400
Maturities of Debt Securities,   at Fair Value:
Within One Year	$	35,160	$	—	$	—	$	35,160
From 1 - 5 Years	81,634		50,490		—		132,124
From 5 - 10 Years	148,412		5,843		—		154,255
Over 10 Years	3,399		—		—		3,399
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	101,695	$	53,076	$	—	$	154,771
12 Months or Longer	65,012		3,257		—		68,269
Total	$	166,707	$	56,333	$	—	$	223,040
Number of Securities in a   Continuous Loss Position	495		47		—		542
Unrealized Losses on Securities    in a Continuous Loss Position:
Less than 12 Months	$	1,981	$	767	$	—	$	2,748
12 Months or Longer	2,998		86		—		3,084
Total	$	4,979	$	853	$	—	$	5,832
Disaggregated Details:
US Government Agency   Securities, at Amortized Cost			$	2,530
US Government Agency   Securities, at Fair Value			2,483
Government Sponsored Entity   Securities, at Amortized Cost			54,656
Government Sponsored Entity Securities, at Fair Value			53,850

# 14

Held-To-Maturity Securities
	State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Total Held-To Maturity Securities
December 31, 2017
Held-To-Maturity Securities,   at Amortized Cost	$	275,530	$	60,377	$	—	$	335,907
Held-To-Maturity Securities,   at Fair Value	275,353		60,548		—		335,901
Gross Unrealized Gains	1,691		269		—		1,960
Gross Unrealized Losses	1,868		98		—		1,966
Held-To-Maturity Securities,   Pledged as Collateral							318,622
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	55,648	$	13,764	$	—	$	69,412
12 Months or Longer	65,152		3,257		—		68,409
Total	$	120,800	$	17,021	$	—	$	137,821
Number of Securities in a   Continuous Loss Position	352		14		—		366
Unrealized Losses on   Securities in a Continuous   Loss Position:
Less than 12 Months	$	442	$	56	$	—	$	498
12 Months or Longer	1,425		43		—		1,468
Total	$	1,867	$	99	$	—	$	1,966
Disaggregated Details:
US Government Agency   Securities, at Amortized Cost			$	2,680
US Government Agency   Securities, at Fair Value			2,661
Government Sponsored Entity   Securities, at Amortized Cost			57,697
Government Sponsored Entity Securities, at Fair Value			57,887
March 31, 2017
Held-To-Maturity Securities,   at Amortized Cost	$	263,642	$	71,569	$	—	$	335,211
Held-To-Maturity Securities,   at Fair Value	263,255		71,850		—		335,105
Gross Unrealized Gains	2,410		298		—		2,708
Gross Unrealized Losses	2,796		17		—		2,813
Held-To-Maturity Securities,   Pledged as Collateral							316,966
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	95,450	$	7,682	$	—	$	103,132
12 Months or Longer	657		—		—		657
Total	$	96,107	$	7,682	$	—	$	103,789
Number of Securities in a   Continuous Loss Position	251		8		—		259
Unrealized Losses on   Securities in a Continuous   Loss Position:
Less than 12 Months	$	2,793	$	17	$	—	$	2,810
12 Months or Longer	3		—		—		3
Total	$	2,796	$	17	$	—	$	2,813

# 15

Held-To-Maturity Securities
	State and Municipal Obligations	Mortgage- Backed Securities		Corporate and Other Debt Securities	Total Held-To Maturity Securities
March 31, 2017
Disaggregated Details:
US Government Agency   Securities, at Amortized Cost		$	3,106
US Government Agency   Securities, at Fair Value		3,121
Government Sponsored Entity   Securities, at Amortized Cost		68,463
Government Sponsored Entity Securities, at Fair Value		68,729

The following table is the schedule of Equity Securities at March 31, 2018. Upon the adoption of ASU 2016-01 effective January 1, 2018, Equity Securities are not included in Securities Available-For-Sale since unrealized gains and losses are now recorded in the Consolidated Statements of Income. Prior to January 1, 2018, Equity Securities were included in Securities Available-For-Sale.

Equity Securities
March 31, 2018
Equity Securities, at Fair Value	$	1,579

In the tables above, maturities of mortgage-backed securities are included based on their expected average lives.  Actual maturities will differ from the table above because issuers may have the right to call or prepay obligations with, or without, prepayment penalties.

Securities in a continuous loss position, in the tables above for March 31, 2018, December 31, 2017 and March 31, 2017, do not reflect any deterioration of the credit worthiness of the issuing entities.  U.S. Government and Agency issues, including agency-backed collateralized mortgage obligations and mortgage-backed securities, are all rated at least Aaa by Moody's or AA+ by Standard and Poor's.

The state and municipal obligations are general obligations supported by the general taxing authority of the issuer, and in some cases are insured. Obligations issued by school districts are supported by state aid.  For any non-rated municipal securities, credit analysis is performed in-house based upon data that has been submitted by the issuers to the New York State Comptroller. That analysis reflects satisfactory credit worthiness of the municipalities.  Corporate and other debt securities continue to be rated above investment grade according to Moody's and Standard and Poor's. Subsequent to March 31, 2018, and through the date of the filing of this Quarterly Report on Form 10-Q Arrow held no securities downgraded below investment grade.  

The unrealized losses on these temporarily impaired securities are primarily the result of changes in interest rates for fixed rate securities where the interest rate received is less than the current rate available for new offerings of similar securities, changes in market spreads as a result of shifts in supply and demand, and/or changes in the level of prepayments for mortgage related securities.   Because we do not currently intend to sell any temporarily impaired securities, and because it is not more likely-than-not that we would be required to sell the securities prior to recovery, the impairment is considered temporary.

# 16

Note 3.    LOANS (In Thousands)

Loan Categories and Past Due Loans

The following table presents loan balances outstanding as of March 31, 2018, December 31, 2017 and March 31, 2017 and an analysis of the recorded investment in loans that are past due at these dates.  Generally, Arrow considers an amortizing loan past due 30 or more days when the borrower is two payments past due. Loans held-for-sale of $171, $327 and $896 as of March 31, 2018, December 31, 2017 and March 31, 2017, respectively, are included in the residential real estate balances for current loans.

			Commercial
	Commercial		Real Estate		Consumer		Residential		Total
March 31, 2018
Loans Past Due 30-59 Days	$	45	$	156	$	3,673	$	1,711	$	5,585
Loans Past Due 60-89 Days	60		—		751		481		1,292
Loans Past Due 90 or more Days	41		807		252		321		1,421
Total Loans Past Due	146		963		4,676		2,513		8,298
Current Loans	127,528		454,095		621,964		781,152		1,984,739
Total Loans	$	127,674	$	455,058	$	626,640	$	783,665	$	1,993,037
Loans 90 or More Days Past Due   and Still Accruing Interest	$	—	$	—	$	—	$	—	$	—
Nonaccrual Loans	652		807		441		2,570		4,470
December 31, 2017
Loans Past Due 30-59 Days	$	139	$	—	$	5,891	$	2,094	$	8,124
Loans Past Due 60-89 Days	19		—		1,215		509		1,743
Loans Past Due 90 or more Days	99		807		513		1,422		2,841
Total Loans Past Due	257		807		7,619		4,025		12,708
Current Loans	128,992		443,441		595,208		770,421		1,938,062
Total Loans	$	129,249	$	444,248	$	602,827	$	774,446	$	1,950,770
Loans 90 or More Days Past Due   and Still Accruing Interest	$	—	$	—	$	6	$	313	$	319
Nonaccrual Loans	$	588	$	1,530	$	653	$	2,755	5,526
March 31, 2017
Loans Past Due 30-59 Days	$	189	$	—	$	3,882	$	2,021	$	6,092
Loans Past Due 60-89 Days	9		—		1,145		684		1,838
Loans Past Due 90 or more Days	120		—		335		835		1,290
Total Loans Past Due	318		—		5,362		3,540		9,220
Current Loans	118,524		435,316		546,601		701,144		1,801,585
Total Loans	$	118,842	$	435,316	$	551,963	$	704,684	$	1,810,805
Loans 90 or More Days Past Due   and Still Accruing Interest	$	—	$	—	$	—	$	—	$	—
Nonaccrual Loans	$	144	$	870	$	656	$	2,603	4,273

The Company disaggregates its loan portfolio into the following four categories:

Commercial - The Company offers a variety of loan options to meet the specific needs of commercial customers including term loans, time notes and lines of credit. Such loans are made available to businesses for working capital needs such as inventory and receivables, business expansion and equipment purchases. Generally, a collateral lien is placed on equipment or other assets owned by the borrower. These loans carry a higher risk than commercial real estate loans due to the nature of the underlying collateral, which can be business assets such as equipment and accounts receivable and generally have a lower liquidation value than real estate. In the event of default by the borrower, the Company may be required to liquidate collateral at deeply discounted values. To reduce the risk, management usually obtains personal guarantees of the borrowers.

# 17

Commercial Real Estate - The Company offers commercial real estate loans to finance real estate purchases, refinancings, expansions and improvements to commercial properties. Commercial real estate loans are made to finance the purchases of real property which generally consists of real estate with completed structures. These commercial real estate loans are secured by first liens on the real estate, which may include apartments, commercial structures, housing businesses, healthcare facilities, and both owner- and non-owner-occupied facilities. These loans are typically less risky than commercial loans, since they are secured by real estate and buildings, and are generally originated in amounts of no more than 80% of the appraised value of the property. However, the Company also offers commercial construction and land development loans to finance projects, primarily within the communities that we serve. Many projects will ultimately be used by the borrowers' businesses, while others are developed for resale. These real estate loans are also secured by first liens on the real estate, which may include apartments, commercial structures, housing business, healthcare facilities and both owner-occupied and non-owner-occupied facilities. There is enhanced risk during the construction period, since the loan is secured by an incomplete project.

Consumer Loans - The Company offers a variety of consumer installment loans to finance personal expenditures. Most of these loans carry a fixed rate of interest with principal repayment terms typically ranging from one to five years, based upon the nature of the collateral and the size of the loan. In addition to installment loans, the Company also offers personal lines of credit and overdraft protection. Several loans are unsecured, which carry a higher risk of loss. Also included in this category are automobile loans. The Company primarily finances the purchases of automobiles indirectly through dealer relationships located throughout upstate New York and Vermont. Most of these loans carry a fixed rate of interest with principal repayment terms typically ranging from three to seven years. Indirect consumer loans are underwritten on a secured basis using the underlying collateral being financed.

Residential - Residential real estate loans consist primarily of loans secured by first or second mortgages on primary residences. We originate adjustable-rate and fixed-rate one-to-four-family residential real estate loans for the construction, purchase or refinancing of an existing mortgage. These loans are collateralized primarily by owner-occupied properties generally located in the Company’s market area. Loans on one-to-four-family residential real estate are generally originated in amounts of no more than 80% of the purchase price or appraised value (whichever is lower), or have private mortgage insurance. The Company’s underwriting analysis for residential mortgage loans typically includes credit verification, independent appraisals, and a review of the borrower’s financial condition. Mortgage title insurance and hazard insurance are normally required. It is our general practice to underwrite residential real estate loans to secondary market standards. Construction loans have a unique risk, because they are secured by an incomplete dwelling. This risk is reduced through periodic site inspections, including one at each loan draw period. In addition, the Company offers fixed home equity loans as well as home equity lines of credit to consumers to finance home improvements, debt consolidation, education and other uses.  Our policy allows for a maximum loan to value ratio of 80%, although periodically higher advances are allowed.  The Company originates home equity lines of credit and second mortgage loans (loans secured by a second junior lien position on one-to-four-family residential real estate).  Risk is generally reduced through underwriting criteria, which include credit verification, appraisals, a review of the borrower's financial condition, and personal cash flows.  A security interest, with title insurance when necessary, is taken in the underlying real estate.

Allowance for Loan Losses

The following table presents a roll-forward of the allowance for loan losses and other information pertaining to the allowance for loan losses:

Allowance for Loan Losses
				Commercial
	Commercial			Real Estate			Consumer			Residential			Total
Roll-forward of the Allowance for Loan Losses for the Quarterly Periods:
December 31, 2017	$	1,873		$	4,504		$	7,604		$	4,605		$	18,586
Charge-offs	(16		)	1			(347		)	(8		)	(370		)
Recoveries	—			9			86			—			95
Provision	311			(151		)	676			(90		)	746
March 31, 2018	$	2,168		$	4,363		$	8,019		$	4,507		$	19,057
December 31, 2016	$	1,017		$	5,677		$	6,120		$	4,198		$	17,012
Charge-offs	(16		)	—			(254		)	—			(270		)
Recoveries	7			—			109			—			116
Provision	(69		)	(228		)	727			(72		)	358
March 31, 2017	$	939		$	5,449		$	6,702		$	4,126		$	17,216

# 18

Allowance for Loan Losses
			Commercial
	Commercial		Real Estate		Consumer		Residential		Total
March 31, 2018
Allowance for loan losses - Loans Individually Evaluated for Impairment	$	92	$	42	$	—	$	58	$	192
Allowance for loan losses - Loans Collectively Evaluated for Impairment	2,076		4,321		8,019		4,449		18,865
Ending Loan Balance - Individually Evaluated for Impairment	489		815		91		1,564		2,959
Ending Loan Balance - Collectively Evaluated for Impairment	$	127,185	$	454,243	$	626,549	$	782,101	$	1,990,078
December 31, 2017
Allowance for loan losses - Loans Individually Evaluated for Impairment	$	94	$	2	$	—	$	10	$	106
Allowance for loan losses - Loans Collectively Evaluated for Impairment	1,779		4,502		7,604		4,595		18,480
Ending Loan Balance - Individually Evaluated for Impairment	489		1,537		95		1,562		3,683
Ending Loan Balance - Collectively Evaluated for Impairment	$	128,760	$	442,711	$	602,732	$	772,884	$	1,947,087
March 31, 2017
Allowance for loan losses - Loans Individually Evaluated for Impairment	$	—	$	34	$	—	$	—	$	34
Allowance for loan losses - Loans Collectively Evaluated for Impairment	939		5,415		6,702		4,126		17,182
Ending Loan Balance - Individually Evaluated for Impairment	—		884		88		1,094		2,066
Ending Loan Balance - Collectively Evaluated for Impairment	$	118,841	$	434,432	$	551,876	$	703,590	$	1,808,739

Through the provision for loan losses, an allowance for loan losses is maintained that reflects the best estimate of the inherent risk of loss in the Company’s loan portfolio as of the balance sheet date. Additions are made to the allowance for loan losses through a periodic provision for loan losses. Actual loan losses are charged against the allowance for loan losses when loans are deemed uncollectible and recoveries of amounts previously charged off are recorded as credits to the allowance for loan losses.

Our loan officers and risk managers meet at least quarterly to discuss and review the conditions and risks associated with certain criticized and classified commercial-related relationships. In addition, our independent internal loan review department performs periodic reviews of the credit quality indicators on individual loans in our commercial loan portfolio.

We use a two-step process to determine the provision for loan losses and the amount of the allowance for loan losses. We measure impairment of impaired loans on a quarterly basis. Our impaired loans are generally nonaccrual loans over $250 thousand and all troubled debt restructured loans. Our impaired loans are generally considered to be collateral dependent with the specific reserve, if any, determined based on the value of the collateral less estimated costs to sell.

The remainder of the portfolio is evaluated on a pooled basis, as described below. For each homogeneous loan pool, we estimate a total loss factor based on the historical net loss rates adjusted for applicable qualitative factors. We update the total loss factors assigned to each loan category on a quarterly basis. For the commercial, commercial construction, and commercial real estate categories, we further segregate the loan categories by credit risk profile (pools of loans graded pass, special mention and accruing substandard). Additional description of the credit risk classifications is detailed in the Credit Quality Indicators section of this note.

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We determine the annualized historical net loss rate for each loan category using a trailing three-year net charge-off average. While historical net loss experience provides a reasonable starting point for analysis, historical net losses, or even recent trends in net losses, do not by themselves form a sufficient basis to determine the appropriate level of the allowance for loan losses. Therefore, we also consider and adjust historical net loss factors for qualitative factors that impact the inherent risk of loss associated with the loan categories within the total loan portfolio. These include:

• Changes in the volume and severity of past due, nonaccrual and adversely classified loans

• Changes in the nature and volume of the portfolio and in the terms of loans

• Changes in the value of the underlying collateral for collateral dependent loans

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

• Changes in the quality of the loan review system

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

• Changes in international, national, regional, and local economic and business conditions and developments that affect the collectibility of the portfolio

• The existence and effect of any concentrations of credit, and changes in the level of such concentrations

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

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Credit Quality Indicators

The following table presents the credit quality indicators by loan category at March 31, 2018, December 31, 2017 and March 31, 2017:

Loan Credit Quality Indicators
			Commercial
	Commercial		Real Estate		Consumer		Residential		Total
March 31, 2018
Credit Risk Profile by Creditworthiness Category:
Satisfactory	$	107,838	$	430,121	$	—	$	—	$	537,959
Special Mention	17,220		611		—		—		17,831
Substandard	2,615		23,521		—		—		26,136
Doubtful	—		807		—		—		807
Credit Risk Profile Based on Payment Activity:
Performing	$	—	$	—	$	626,198	$	781,095	$	1,407,293
Nonperforming	—		—		441		2,570		3,011
December 31, 2017
Credit Risk Profile by Creditworthiness Category:
Satisfactory	$	124,961	$	417,362	$	—	$	—	$	542,323
Special Mention	1,341		177		—		—		1,518
Substandard	2,947		25,902		—		—		28,849
Doubtful	—		807		—		—		807
Credit Risk Profile Based on Payment Activity:
Performing	$	—	$	—	$	602,168	$	771,584	$	1,373,752
Nonperforming	—		—		659		3,068		3,727
March 31, 2017
Credit Risk Profile by Creditworthiness Category:
Satisfactory	$	109,416	$	402,266	$	—	$	—	$	511,682
Special Mention	1,349		2,233		—		—		3,582
Substandard	8,077		30,817		—		—		38,894
Doubtful	—		—		—		—		—
Credit Risk Profile Based on Payment Activity:
Performing	$	—	$	—	$	551,307	$	702,081	$	1,253,388
Nonperforming	—		—		656		2,603		3,259

For the purposes of the table above, nonperforming consumer and residential loans are those loans on nonaccrual status or are 90 days or more past due and still accruing interest.

For the allowance calculation, we use an internally developed system of five credit quality indicators to rate the credit worthiness of each commercial loan defined as follows:

1) Satisfactory - "Satisfactory" borrowers have acceptable financial condition with satisfactory record of earnings and sufficient historical and projected cash flow to service the debt.  Borrowers have satisfactory repayment histories and primary and secondary sources of repayment can be clearly identified;

2) Special Mention - Loans in this category have potential weaknesses that deserve management’s close attention.  If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the institution’s credit position at some future date.  "Special mention" assets are not adversely classified and do not expose an institution to sufficient risk to warrant adverse classification.  Loans which might be assigned this credit quality indicator include loans to borrowers with deteriorating financial strength and/or earnings record and loans with potential for problems due to weakening economic or market conditions;

3) Substandard - Loans classified as “substandard” are inadequately protected by the current sound net worth or paying capacity of the borrower or the collateral pledged, if any.  Loans in this category have well defined weaknesses that jeopardize the

# 21

repayment.  They are characterized by the distinct possibility that the bank will sustain some loss if the deficiencies are not corrected.  “Substandard” loans may include loans which are likely to require liquidation of collateral to effect repayment, and other loans where character or ability to repay has become suspect. Loss potential, while existing in the aggregate amount of substandard assets, does not have to exist in individual assets classified substandard;

4) Doubtful - Loans classified as “doubtful” have all of the weaknesses inherent in those classified as “substandard” with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of current existing facts, conditions, and values highly questionable and improbable.  Although possibility of loss is extremely high, classification of these loans as “loss” has been deferred due to specific pending factors or events which may strengthen the value (i.e. possibility of additional collateral, injection of capital, collateral liquidation, debt restructure, economic recovery, etc).  Loans classified as “doubtful” need to be placed on non-accrual; and

5) Loss - Loans classified as “loss” are considered uncollectible and of such little value that their continuance as bankable assets is not warranted.  As of the date of the balance sheet, all loans in this category have been charged-off to the allowance for loan losses.  

Commercial loans are generally evaluated on an annual basis depending on the size and complexity of the loan relationship, unless the credit related quality indicator falls to a level of "special mention" or below, when the loan is evaluated quarterly.  The credit quality indicator is one of the factors used in assessing the level of inherent risk of loss in our commercial related loan portfolios.

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Impaired Loans

The following table presents information on impaired loans based on whether the impaired loan has a recorded related allowance or has no recorded related allowance:

Impaired Loans
			Commercial
	Commercial		Real Estate		Consumer		Residential		Total
March 31, 2018
Recorded Investment:
With No Related Allowance	$	—	$	8	$	90	$	1,276	$	1,374
With a Related Allowance	483		783		—		356		1,622
Unpaid Principal Balance:
With No Related Allowance	—		8		90		1,279		1,377
With a Related Allowance	489		807		—		286		1,582
December 31, 2017
Recorded Investment:
With No Related Allowance	$	—	$	781	$	94	$	1,269	$	2,144
With a Related Allowance	485		725		—		333		1,543
Unpaid Principal Balance:
With No Related Allowance	—		816		95		1,274		2,185
With a Related Allowance	489		721		—		288		1,498
March 31, 2017
Recorded Investment:
With No Related Allowance	$	—	$	884	$	88	$	806	$	1,778
With a Related Allowance	—		—		—		288		288
Unpaid Principal Balance:
With No Related Allowance	—		884		88		806		$	1,778
With a Related Allowance	—		—		—		288		288
For the Quarter Ended:
March 31, 2018
Average Recorded Balance:
With No Related Allowance	$	—	$	395	$	92	$	1,273	$	1,760
With a Related Allowance	484		754		—		345		1,583
Interest Income Recognized:
With No Related Allowance	—		—		—		16		16
With a Related Allowance	—		—		—		24		24
Cash Basis Income:
With No Related Allowance	—		—		—		—		—
With a Related Allowance	—		—		—		—		—
March 31, 2017
Average Recorded Balance:
With No Related Allowance	$	—	$	887	$	90	$	952	$	1,929
With a Related Allowance	—		—		—		144		144
Interest Income Recognized:
With No Related Allowance	—		—		1		—		1
With a Related Allowance	—		—		—		—		—
Cash Basis Income:
With No Related Allowance	—		—		—		—		—
With a Related Allowance	—		—		—		—		—

At March 31, 2018, December 31, 2017 and March 31, 2017, all impaired loans were considered to be collateral dependent and were therefore evaluated for impairment based on the fair value of collateral less estimated cost to sell. Interest income recognized in the table above, represents income earned after the loans became impaired and includes restructured loans in compliance with their modified terms and nonaccrual loans where we have recognized interest income on a cash basis.

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Loans Modified in Trouble Debt Restructurings

The following table presents information on loans modified in trouble debt restructurings during the periods indicated.

Loans Modified in Trouble Debt Restructurings During the Period
			Commercial
	Commercial		Real Estate		Consumer		Residential		Total
For the Quarter Ended:
March 31, 2018
Number of Loans	—		—		1		—		1
Pre-Modification Outstanding Recorded Investment	$	—	$	—	$	3	$	—	$	3
Post-Modification Outstanding Recorded Investment	—		—		3		—		3
Subsequent Default, Number of Contracts	—		—		—		—		—
Subsequent Default, Recorded Investment	—		—		—		—		—
March 31, 2017
Number of Loans	—		—		2		—		2
Pre-Modification Outstanding Recorded Investment	$	—	$	—	$	15	$	—	$	15
Post-Modification Outstanding Recorded Investment	—		—		15		—		15
Subsequent Default, Number of Contracts	—		—		—		—		—
Subsequent Default, Recorded Investment	—		—		—		—		—

In general, loans requiring modification are restructured to accommodate the projected cash-flows of the borrower. Such modifications may involve a reduction of the interest rate, a significant deferral of payments or forgiveness of a portion of the outstanding principal balance. As indicated in the table above, no loans modified during the preceding twelve months subsequently defaulted as of March 31, 2018.

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Note 4.    GUARANTEES (In Thousands)

The following table presents the notional amount and fair value of Arrow's off-balance sheet commitments to extend credit and commitments under standby letters of credit as of March 31, 2018, December 31, 2017 and March 31, 2017:

Commitments to Extend Credit and Letters of Credit
	March 31, 2018		December 31, 2017		March 31, 2017
Notional Amount:
Commitments to Extend Credit	$	328,774	$	315,256	$	294,618
Standby Letters of Credit	3,584		3,526		3,371
Fair Value:
Commitments to Extend Credit	$	—	$	—	$	—
Standby Letters of Credit	24		23		28

Arrow is party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers.  These financial instruments include commitments to extend credit and standby letters of credit.  Commitments to extend credit include home equity lines of credit, commitments for residential and commercial construction loans and other personal and commercial lines of credit.  These instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the consolidated balance sheets.  The contract or notional amounts of those instruments reflect the extent of the involvement Arrow has in particular classes of financial instruments.

Arrow's exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit and standby letters of credit is represented by the contractual notional amount of those instruments.  Arrow uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments.

Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract.  Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee.  Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements.  Arrow evaluates each customer's creditworthiness on a case-by-case basis.  Home equity lines of credit are secured by residential real estate.  Construction commitments are secured by underlying real estate.  For other lines of credit, the amount of collateral obtained, if deemed necessary by Arrow upon extension of credit, is based on management's credit evaluation of the counterparty.  Collateral held varies, but may include accounts receivable, inventory, property, plant and equipment, and income-producing commercial properties.  Most of the commitments are variable rate instruments.

Arrow does not issue any guarantees that would require liability-recognition or disclosure, other than its standby letters of credit.

Arrow has issued conditional commitments in the form of standby letters of credit to guarantee payment on behalf of a customer and guarantee the performance of a customer to a third party.  Standby letters of credit generally arise in connection with lending relationships. The credit risk involved in issuing these instruments is essentially the same as that involved in extending loans to customers. Contingent obligations under standby letters of credit at March 31, 2018, December 31, 2017 and March 31, 2017 represent the maximum potential future payments Arrow could be required to make.  Typically, these instruments have terms of 12 months or less and expire unused; therefore, the total amounts do not necessarily represent future cash requirements.  Each customer is evaluated individually for creditworthiness under the same underwriting standards used for commitments to extend credit and on-balance sheet instruments. Company policies governing loan collateral apply to standby letters of credit at the time of credit extension.  Loan-to-value ratios generally range from 50% for movable assets, such as inventory, to 100% for liquid assets, such as bank CD's.  Fees for standby letters of credit typically range from 1% to 3% of the notional amount.  Fees are collected upfront and are amortized over the life of the commitment. The carrying amount and fair values of Arrow's standby letters of credit at March 31, 2018, December 31, 2017 and March 31, 2017, were insignificant.  The fair value of standby letters of credit is based on the fees currently charged for similar agreements or the cost to terminate the arrangement with the counterparties.

The fair value of commitments to extend credit is determined by estimating the fees to enter into similar agreements, taking into account the remaining terms and present creditworthiness of the counterparties, and for fixed rate loan commitments, the difference between the current and committed interest rates.  Arrow provides several types of commercial lines of credit and standby letters of credit to its commercial customers.  The pricing of these services is not isolated, as Arrow considers the customer's complete deposit and borrowing relationship in pricing individual products and services.  The commitments to extend credit also include commitments under home equity lines of credit, for which Arrow charges no fee.  The carrying value and fair value of commitments to extend credit are not material and Arrow does not expect to incur any material loss as a result of these commitments.

In the normal course of business, Arrow and its subsidiary banks become involved in a variety of routine legal proceedings.  At present, there are no legal proceedings pending or threatened, which in the opinion of management and counsel, would result in a material loss to Arrow.

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Note 5.    COMPREHENSIVE INCOME (In Thousands)

The following table presents the components of other comprehensive income for the three-month periods ended March 31, 2018 and 2017:

Schedule of Comprehensive Income
	Three Months Ended March 31,
				Tax
	Before-Tax			(Expense)			Net-of-Tax
	Amount			Benefit			Amount
2018
Net Unrealized Securities Holding Losses on Securities Available-for-Sale Arising During the Period	(3,332		)	$	847		(2,485		)
Amortization of Net Retirement Plan Actuarial Loss	60			(14		)	46
Accretion of Net Retirement Plan Prior Service Credit	(1		)	—			(1		)
Other Comprehensive Loss	$	(3,273	)	$	833		$	(2,440	)
2017
Net Unrealized Securities Holding Gains on Securities Available-for-Sale Arising During the Period	77			$	(30	)	47
Amortization of Net Retirement Plan Actuarial Loss	178			(69		)	109
Accretion of Net Retirement Plan Prior Service Credit	(3		)	1			(2		)
Other Comprehensive Income	$	252		$	(98	)	$	154

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The following table presents the changes in accumulated other comprehensive income by component:

Changes in Accumulated Other Comprehensive Income (Loss) by Component (1)
	Unrealized			Defined Benefit Plan Items
	Gains and
	Losses on						Net Prior
	Available-for-			Net Gain			Service
	Sale Securities			(Loss)			(Cost ) Credit			Total
For the Quarter-To-Date periods ended:
December 31, 2017	$	(1,250	)	$	(6,380	)	$	(884	)	$	(8,514	)
Other comprehensive income or loss before reclassifications	(2,485		)	—			—			(2,485		)
Amounts reclassified from accumulated other comprehensive income	—			46			(1		)	45
Net current-period other comprehensive income (loss)	(2,485		)	46			(1		)	(2,440		)
Reclassification due to the adoption of ASU 2016-01	(331		)							(331		)
March 31, 2018	$	(4,066	)	$	(6,334	)	$	(885	)	$	(11,285	)
December 31, 2016	$	(382	)	$	(5,737	)	$	(715	)	$	(6,834	)
Other comprehensive income or loss before reclassifications	47			—			—			47
Amounts reclassified from accumulated other comprehensive income	—			109			(2		)	107
Net current-period other comprehensive income (loss)	47			109			(2		)	154
March 31, 2017	$	(335	)	$	(5,628	)	$	(717	)	$	(6,680	)

(1) All amounts are net of tax. Amounts in parentheses indicate debits.

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The following table presents the reclassifications out of accumulated other comprehensive income:

Reclassifications Out of Accumulated Other Comprehensive Income (1)
	Amounts Reclassified
Details about Accumulated Other	from Accumulated Other				Affected Line Item in the Statement
Comprehensive Income (Loss) Components	Comprehensive Income				Where Net Income Is Presented
For the Quarter-to-date periods ended:
March 31, 2018
Amortization of defined benefit pension items:
Prior-service costs	$	1		(2)	Salaries and Employee Benefits
Actuarial gains/(losses)	(60		)	(2)	Salaries and Employee Benefits
	(59		)		Total before Tax
	14				Provision for Income Taxes
	$	(45	)		Net of Tax
Total reclassifications for the period	$	(45	)		Net of Tax
March 31, 2017
Amortization of defined benefit pension items:
Prior-service costs	$	3		(2)	Salaries and Employee Benefits
Actuarial gains/(losses)	(178		)	(2)	Salaries and Employee Benefits
	(175		)		Total before Tax
	68				Provision for Income Taxes
	$	(107	)		Net of Tax
Total reclassifications for the period	$	(107	)		Net of Tax

(1) Amounts in parentheses indicate debits to profit/loss.

(2) These accumulated other comprehensive income components are included in the computation of net periodic pension cost.

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Note 6.    STOCK BASED COMPENSATION (Dollars In Thousands, Except Share and Per Share Amounts)

Arrow has established three stock based compensation plans: an Incentive and Non-qualified Stock Option Plan (Long Term Incentive Plan), an Employee Stock Purchase Plan (ESPP) and an Employee Stock Ownership Plan (ESOP). All share and per share data have been adjusted for the September 28, 20173% stock dividend.

Long Term Incentive Plan

The Long Term Incentive Plan provides for the grant of incentive stock options, non-qualified stock options, restricted stock, restricted stock units, performance units and performance shares. The compensation committee of the Board of Directors administers the Long Term Incentive Plan.

Stock Options - Options may be granted at a price no less than the greater of the par value or fair market value of such shares on the date on which such option is granted, and generally expire ten years from the date of grant.  The options usually vest over a four-year period.

The following table presents the roll forward of stock options issued pursuant to the Long Term Incentive Plan by Shares and Weighted Average Exercise Prices.

Roll-Forward of Shares Outstanding:
Outstanding at January 1, 2018	346,155
Granted	55,188
Exercised	(27,662		)
Forfeited	—
Outstanding at March 31, 2018	373,681
Exercisable at Period-End	247,333
Vested and Expected to Vest	126,348
Roll-Forward of Shares Outstanding - Weighted Average Exercise Price:
Outstanding at January 1, 2018	$	24.12
Granted	30.85
Exercised	22.03
Forfeited	—
Outstanding at March 31, 2018	25.27
Exercisable at Period-End	22.57
Vested and Expected to Vest	30.54
Schedule of Other Long Term Incentive Plan Information
Grants Issued During 2018 - Weighted Average Information:
Fair Value	$	5.76
Fair Value Assumptions:
Dividend Yield	2.98		%
Expected Volatility	21.55		%
Risk Free Interest Rate	2.68		%
Expected Lives (in years)	6.98

Restricted Stock Units - The Company grants restricted stock units which gives the recipient the right to receive shares of Company stock upon vesting. The fair value of each restricted stock unit is the market value of Company stock on the date of grant. 100% of the restricted stock unit awards vest three years from the grant date. Once vested, the restricted stock units become vested units. Unvested restricted stock unit awards will generally be forfeited if the recipient ceases to be employed by the Company, with limited exceptions.

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The following table presents the roll forward of restricted stock units by units and weighted average grant-date fair value.

Roll-Forward of Restricted Stock Units
Non-vested at January 1, 2018	—
Granted	3,279
Vested	—
Canceled	—
Non-vested at March 31, 2018	3,279
Roll-Forward of Non-vested Restricted Stock Units - Weighted Average Fair Value:
Non-vested at January 1, 2018	$	—
Granted	33.55
Vested	—
Canceled	—
Non-vested at March 31, 2018	33.55

The following table presents information on the amounts expensed for the periods ended March 31, 2018 and 2017:

Share-Based Compensation Expense
	For the Three Months Ended March 31,
	2018		2017
Share-Based Compensation Expense	$	89	$	83

Employee Stock Purchase Plan

Arrow sponsors an ESPP under which employees purchase Arrow's common stock at a 5% discount below market price. Under current accounting guidance, a stock purchase plan with a discount of 5% or less is not considered a compensatory plan.

Employee Stock Ownership Plan

Arrow maintains an ESOP.  Substantially all employees of Arrow and its subsidiaries are eligible to participate upon satisfaction of applicable service requirements.  The ESOP borrowed funds from one of Arrow’s subsidiary banks to purchase outstanding shares of Arrow’s common stock.  The notes require annual payments of principal and interest through 2018.  As the debt is repaid, shares are released from collateral based on the proportion of debt paid to total debt outstanding for the year and allocated to active employees.  In addition, the Company makes additional cash contributions to the Plan each year.

Shares pledged as collateral are reported as unallocated ESOP shares in stockholders' equity. As shares are released from collateral, Arrow reports compensation expense equal to the current average market price of the shares, and the shares become outstanding for earnings per share computations.

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Note 7.    RETIREMENT PLANS (Dollars in Thousands)

Arrow sponsors qualified and nonqualified defined benefit pension plans and other postretirement benefit plans for its employees. Arrow maintains a non-contributory pension plan, which covers substantially all employees.  Effective December 1, 2002, all active participants in the qualified defined benefit pension plan were given a one-time irrevocable election to continue participating in the traditional plan design, for which benefits were based on years of service and the participant’s final compensation (as defined), or to begin participating in the new cash balance plan design.  All employees who participate in the plan after December 1, 2002 automatically participate in the cash balance plan design.  The interest credits under the cash balance plan are based on the 30-year U.S. Treasury rate in effect for November of the prior year.  The service credits under the cash balance plan are equal to 6.0% of eligible salaries for employees who become participants on or after January 1, 2003.  For employees in the plan prior to January 1, 2003, the service credits are scaled based on the age of the participant, and range from 6.0% to 12.0%.  The funding policy is to contribute up to the maximum amount that can be deducted for federal income tax purposes and to make all payments required under ERISA.  Arrow also maintains a supplemental non-qualified unfunded retirement plan to provide eligible employees of Arrow and its subsidiaries with benefits in excess of qualified plan limits imposed by federal tax law.

Arrow has multiple non-pension postretirement benefit plans.  The health care, dental and life insurance plans are contributory, with participants’ contributions adjusted annually.  Arrow’s policy is to fund the cost of postretirement benefits based on the current cost of the underlying policies.  However, the health care plan provision for automatic increases of Company contributions each year is based on the increase in inflation and is limited to a maximum of 5%.  

As of December 31, 2016, Arrow updated its mortality assumption to the RP-2014 Mortality Table for annuitants and non-annuitants with projected generational mortality improvements using Scale MP-2016. The revised assumption resulted in a decrease in postretirement liabilities.

The following tables provide the components of net periodic benefit costs for the three month periods ended March 31, 2018 and 2017.

				Select
	Employees'			Executive		Postretirement
	Pension			Retirement		Benefit
	Plan			Plan		Plans
Net Periodic Benefit Cost
For the Three Months Ended March 31, 2018:
Service Cost 1	$	348		$	11	$	33
Interest Cost 2	525			50		99
Expected Return on Plan Assets 2	(785		)	—		—
Amortization of Prior Service (Credit) Cost 2	(12		)	14		(3		)
Amortization of Net Loss 2	33			33		(6		)
Net Periodic Benefit Cost	$	109		$	108	$	123
Plan Contributions During the Period	$	—		$	116	$	17
For the Three Months Ended March 31, 2017:
Service Cost 1	$	350		$	10	$	37
Interest Cost 2	350			50		86
Expected Return on Plan Assets 2	(800		)	—		—
Amortization of Prior Service (Credit) Cost 2	(14		)	14		(3		)
Amortization of Net Loss 2	148			30		—
Net Periodic Benefit Cost	$	34		$	104	$	120
Plan Contributions During the Period	$	—		$	113	$	53

Footnotes:

1. Included in Salaries and Employee Benefits on the Consolidated Statements of Income

2. Included in Other Operating Expense on the Consolidated Statements of Income

We are not required to make a contribution to the qualified pension plan in 2018, and currently, we do not expect to make additional contributions in 2018. Arrow makes contributions to its other post-retirement benefit plans in an amount equal to benefit payments for the year.

# 31

Note 8.    EARNINGS PER COMMON SHARE (In Thousands, Except Per Share Amounts)

The following table presents a reconciliation of the numerator and denominator used in the calculation of basic and diluted earnings per common share (“EPS”) for periods ended March 31, 2018 and 2017.  All share and per share amounts have been adjusted for the September 28, 20173% stock dividend.

Earnings Per Share
	Quarterly Period Ended:
	March 31, 2018		March 31, 2017
Earnings Per Share - Basic:
Net Income	$	8,531	$	6,631
Weighted Average Shares - Basic	13,936		13,889
Earnings Per Share - Basic	$	0.61	$	0.48
Earnings Per Share - Diluted:
Net Income	$	8,531	$	6,631
Weighted Average Shares - Basic	13,936		13,889
Dilutive Average Shares Attributable to Stock Options	80		112
Weighted Average Shares - Diluted	14,016		14,001
Earnings Per Share - Diluted	$	0.61	$	0.47

# 32

Note 9.    FAIR VALUE OF FINANCIAL INSTRUMENTS (In Thousands)

FASB ASC Subtopic 820-10 defines fair value, establishes a framework for measuring fair value in GAAP and requires certain disclosures about fair value measurements. We do not have any nonfinancial assets or liabilities measured at fair value on a recurring basis. The only assets or liabilities that Arrow measured at fair value on a recurring basis at March 31, 2018 were securities available-for-sale and equity securities and for December 31, 2017 and March 31, 2017 securities available-for-sale. Arrow held no securities or liabilities for trading on such dates.

The table below presents the financial instrument's fair value and the amounts within the fair value hierarchy based on the lowest level of input that is significant to the fair value measurement:

Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis
			Fair Value Measurements at Reporting Date Using:
	Fair Value		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Life-to-Date Gains (Losses)
Fair Value of Assets and Liabilities Measured on a Recurring Basis:
March 31, 2018
Securities Available-for Sale:
U.S. Government & Agency Obligations	$	59,657	$	59,657	$	—	$	—
State and Municipal Obligations	9,743		—		9,743		—
Mortgage-Backed Securities	235,389		—		235,389		—
Corporate and Other Debt Securities	800		—		800		—
Total Securities Available-for-Sale	305,589		59,657		245,932		—
Equity Securities	1,579		—		1,579		—
Total Securities Measured on a Recurring Basis	$	307,168	$	59,657	$	247,511	$	—
December 31, 2017
Securities Available-for Sale:
U.S. Government & Agency Obligations	$	59,894	$	59,894	$	—	$	—
State and Municipal Obligations	10,349		—		10,349		—
Mortgage-Backed Securities	227,596		—		227,596		—
Corporate and Other Debt Securities	800		—		800		—
Equity Securities	1,561		—		1,561		—
Total Securities Available-for Sale	$	300,200	$	59,894	$	240,306	$	—
March 31, 2017
Securities Available-for Sale:
U.S. Government & Agency Obligations	$	147,231	$	54,695	$	92,536	$	—
State and Municipal Obligations	25,507		—		25,507		—
Mortgage-Backed Securities	169,728		—		169,728		—
Corporate and Other Debt Securities	3,298		—		3,298		—
Equity Securities	1,395		—		1,395		—
Total Securities Available-for Sale	$	347,159	$	54,695	$	292,464	$	—
Fair Value of Assets and Liabilities Measured on a Nonrecurring Basis:
March 31, 2018
Collateral Dependent Impaired Loans	$	1,295	$	—	$	—	$	1,295	$	(58	)
Other Real Estate Owned and Repossessed Assets, Net	1,647		—		—		1,647		(582		)
December 31, 2017
Collateral Dependent Impaired Loans	$	—	$	—	$	—	$	—	$	—
Other Real Estate Owned and Repossessed Assets, Net	$	1,847	$	—	—		1,847		$	(569	)
March 31, 2017
Collateral Dependent Impaired Loans	$	288	$	—	$	—	$	288	$	(34	)
Other Real Estate Owned and Repossessed Assets, Net	1,734		—		—		1,734		(500		)

# 33

We determine the fair value of financial instruments under the following hierarchy:

• Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;

• Level 2 - Quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability;

• Level 3 - Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity).

There were no transfers between Levels 1, 2 and 3 for the three months ended March 31, 2018, December 31, 2017 and March 31, 2017.

Fair Value Methodology for Assets and Liabilities Measured on a Recurring Basis

The fair value of Level 1 securities available-for-sale are based on unadjusted, quoted market prices from exchanges in active markets. The fair value of Level 2 securities available-for-sale are based on an independent bond and equity pricing service for identical assets or significantly similar securities and an independent equity pricing service for equity securities not actively traded.  The pricing services use a variety of techniques to arrive at fair value including market maker bids, quotes and pricing models.  Inputs to the pricing models include recent trades, benchmark interest rates, spreads and actual and projected cash flows.  

Fair Value Methodology for Assets and Liabilities Measured on a Nonrecurring Basis

The fair value of collateral dependent impaired loans and other real estate owned was based on third-party appraisals less estimated cost to sell. The appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. Other assets which might have been included in this table include mortgage servicing rights, goodwill and other intangible assets. Arrow evaluates each of these assets for impairment on an annual basis, with no impairment recognized for these assets at March 31, 2018, December 31, 2017 and March 31, 2017.

Fair Value Methodology for Financial Instruments Not Measured on a Recurring or Nonrecurring Basis

Securities held-to-maturity are fair valued utilizing an independent bond pricing service for identical assets or significantly similar securities.  The pricing service uses a variety of techniques to arrive at fair value including market maker bids, quotes and pricing models.  Inputs to the pricing models include recent trades, benchmark interest rates, spreads and actual and projected cash flows.

ASU 2016-01 "Recognition and Measurement of Financial Assets and Financial Liabilities" requires that, effective for the first quarter of 2018, the fair value for loans must be disclosed using the "exit price" notion which is a reasonable estimate of what another party might pay in an orderly transaction. Fair values for loans are calculated for portfolios of loans with similar financial characteristics.  Loans are segregated by type such as commercial, commercial real estate, residential mortgage, indirect auto and other consumer loans.  Each loan category is further segmented into fixed and adjustable interest rate terms and by performing and nonperforming categories.  The fair value of performing loans is calculated by determining the estimated future cash flow, which is the contractual cash flow adjusted for estimated prepayments. The discount rate is determined by starting with current market yields, and first adjusting for a liquidity premium. This premium is separately determined for residential real estate loans vs. other loans. Then a credit loss component is determined utilizing the credit loss assumptions used in the allowance for loan and lease loss model. Finally, a discount spread is applied separately for consumer loans vs. commercial loans based on market information and utilization of the Swap Curve.  Fair value for nonperforming loans is generally based on recent external appraisals.  If appraisals are not available, estimated cash flows are discounted using a rate commensurate with the risk associated with the estimated cash flows.  Assumptions regarding credit risk, cash flows and discount rates are judgmentally determined using available market information and specific borrower information.

The fair value of time deposits is based on the discounted value of contractual cash flows, except that the fair value is limited to the extent that the customer could redeem the certificate after imposition of a premature withdrawal penalty.  The discount rates are estimated using the Federal Home Loan Bank of New York ("FHLBNY") yield curve, which is considered representative of Arrow’s time deposit rates. The fair value of all other deposits is equal to the carrying value.

The fair value of FHLBNY advances is estimated based on the discounted value of contractual cash flows.  The discount rate is estimated using current rates on FHLBNY advances with similar maturities and call features.

The book value of the outstanding trust preferred securities (Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts) are considered to approximate fair value since the interest rates are variable (indexed to LIBOR) and Arrow is well-capitalized.

# 34

Fair Value by Balance Sheet Grouping

The following table presents a summary of the carrying amount, the fair value or an amount approximating fair value and the fair value hierarchy of Arrow’s financial instruments:

Schedule of Fair Values by Balance Sheet Grouping
					Fair Value Hierarchy
	Book Value		Fair Value		Level 1		Level 2		Level 3
March 31, 2018
Cash and Cash Equivalents	$	100,272	$	100,272	$	100,272	$	—	$	—
Securities Available-for-Sale	305,589		305,589		—		305,589		—
Securities Held-to-Maturity	330,124		324,938		—		324,938		—
Equity Securities	1,579		1,579		—		1,579		—
Federal Home Loan Bank and Federal   Reserve Bank Stock	4,780		4,780		—		4,780		—
Net Loans	1,973,980		1,915,978		—		—		1,915,978
Accrued Interest Receivable	7,662		7,662		—		7,662		—
Deposits	2,411,273		2,402,122		—		2,402,122		—
Federal Funds Purchased and Securities   Sold Under Agreements to Repurchase	74,957		74,957		—		74,957		—
Federal Home Loan Bank Term Advances	45,000		44,484		—		44,484		—
Junior Subordinated Obligations Issued   to Unconsolidated Subsidiary Trusts	20,000		20,000		—		20,000		—
Accrued Interest Payable	361		361		—		361		—
December 31, 2017
Cash and Cash Equivalents	$	72,838	$	72,838	$	72,838	$	—	$	—
Securities Available-for-Sale	300,200		300,200		59,894		240,306		—
Securities Held-to-Maturity	335,907		335,901		—		335,901		—
Federal Home Loan Bank and Federal   Reserve Bank Stock	9,949		9,949		—		9,949		—
Net Loans	1,932,184		1,901,046		—		—		1,901,046
Accrued Interest Receivable	6,753		6,753		—		6,753		—
Deposits	2,245,116		2,236,548		—		2,236,548		—
Federal Funds Purchased and Securities   Sold Under Agreements to Repurchase	64,966		64,966		—		64,966		—
Federal Home Loan Bank Overnight Advances	105,000		105,000		—		105,000		—
Federal Home Loan Bank Term Advances	55,000		54,781		—		54,781		—
Junior Subordinated Obligations Issued   to Unconsolidated Subsidiary Trusts	20,000		20,000		—		20,000		—
Accrued Interest Payable	410		410		—		410		—
March 31, 2017
Cash and Cash Equivalents	$	64,803	$	64,803	$	64,803	$	—	$	—
Securities Available-for-Sale	347,159		347,159		54,695		292,464		—
Securities Held-to-Maturity	335,211		335,105		—		335,105		—
Federal Home Loan Bank and Federal   Reserve Bank Stock	6,826		6,826		—		6,826		—
Net Loans	1,793,589		1,773,895		—		—		1,773,895
Accrued Interest Receivable	7,530		7,530		—		7,530		—
Deposits	2,256,536		2,248,066		—		2,248,066		—
Federal Funds Purchased and Securities   Sold Under Agreements to Repurchase	32,035		32,035		—		32,035		—
Federal Home Loan Bank Overnight Advances	32,000		32,000		—		32,000		—
Federal Home Loan Bank Term Advances	55,000		55,130		—		55,130		—
Junior Subordinated Obligations Issued   to Unconsolidated Subsidiary Trusts	20,000		20,000		—		20,000		—
Accrued Interest Payable	240		240		—		240		—

# 35

Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors

Arrow Financial Corporation:

Results of Review of Interim Financial Information

We have reviewed the consolidated balance sheet of Arrow Financial Corporation and subsidiaries (the Company) as of March 31, 2018 and 2017, the related consolidated statements of income, comprehensive income, changes in stockholders’ equity and cash flows for the three-month periods ended March 31, 2018 and 2017, and the related notes (collectively, the consolidated interim financial information). Based on our reviews, we are not aware of any material modifications that should be made to the consolidated interim financial information for it to be in conformity with U.S. generally accepted accounting principles.

We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheet of the Company as of December 31, 2017, and the related consolidated statements of income, comprehensive income, changes in stockholders’ equity, and cash flows for the year then ended (not presented herein); and in our report dated March 12, 2018, we expressed an unqualified opinion on those consolidated financial statements. In our opinion, the information set forth in the accompanying consolidated balance sheet as of December 31, 2017, is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.

Basis for Review Results

This consolidated interim financial information is the responsibility of the Company’s management. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our reviews in accordance with the standards of the PCAOB. A review of consolidated interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the PCAOB, the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.

/s/ KPMG LLP

Albany, New York

May 9, 2018

# 36

Item 2.

ARROW FINANCIAL CORPORATION AND SUBSIDIARIES

MANAGEMENT'S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

March 31, 2018

Note on Terminology - In this Quarterly Report on Form 10-Q, the terms “Arrow,” “the registrant,” “the company,” “we,” “us,” and “our” generally refer to Arrow Financial Corporation and its subsidiaries as a group, except where the context indicates otherwise. At certain points in this Form 10-Q, our performance is compared with that of our “peer group” of financial institutions. Unless otherwise specifically stated, the peer group for the purposes of this Form 10-Q is comprised of the group of 320 domestic bank holding companies with $1 to $3 billion in total consolidated assets as identified in the Federal Reserve Board’s “Bank Holding Company Performance Report” for December 31, 2017 (the most recent such Report currently available), and peer group data contained herein has been derived from such Report.

The Company and Its Subsidiaries - Arrow is a two-bank holding company headquartered in Glens Falls, New York. Our banking subsidiaries are Glens Falls National Bank and Trust Company (Glens Falls National) whose main office is located in Glens Falls, New York, and Saratoga National Bank and Trust Company (Saratoga National) whose main office is located in Saratoga Springs, New York. Our non-bank subsidiaries include Capital Financial Group, Inc. (an insurance agency specializing in selling and servicing group health care policies); Upstate Agency, LLC (an insurance agency specializing in property and casualty insurance); North Country Investment Advisers, Inc. (a registered investment adviser that provides investment advice to our proprietary mutual funds); Glens Falls National Community Development Corporation (which invests in qualifying community development projects); and Arrow Properties, Inc. (a real estate investment trust, or REIT). Our holding company also owns directly two subsidiary business trusts, organized in 2003 and 2004 to issue trust preferred securities (TRUPs), which are still outstanding.

Forward Looking Statements - This Quarterly Report on Form 10-Q contains statements that are not historical in nature but rather are based on our beliefs, assumptions, expectations, estimates and projections about the future. These statements are “forward-looking statements” within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended, and involve a degree of uncertainty and attendant risk. Words such as "may," "will," “expect,” “believe,” “anticipate,” “estimate," "continue," and variations of such words and similar expressions are intended to identify such forward-looking statements. Examples of forward-looking statements include statements regarding the Company's asset quality, the level of allowance for loan losses, the sufficiency of liquidity sources, interest rate change exposure, changes in accounting standards, and the Company's tax plans and strategies. Some of these statements, such as those included in the interest rate sensitivity analysis in Part I, Item 3, entitled “Quantitative and Qualitative Disclosures About Market Risk,” are merely presentations of what future performance or changes in future performance would look like based on hypothetical assumptions and on simulation models. Other forward-looking statements are based on our general perceptions of market conditions and trends in business activity, both our own and in the banking industry generally, as well as current management strategies for future operations and development.

These forward-looking statements may not be exhaustive, are not guarantees of future performance and involve certain risks and uncertainties that are difficult to quantify or, in some cases, to identify.  You should not place undue reliance on any such forward-looking statements. In the case of all forward-looking statements, actual outcomes and results may differ materially from what the statements predict or forecast.  Factors that could cause or contribute to such differences include, but are not limited to:  

a. rapid and dramatic changes in economic and market conditions

b.sharp fluctuations in interest rates, economic activity, or consumer spending patterns;

c.sudden changes in the market for products we provide, such as real estate loans;

d. significant changes in banking or other laws and regulations, including both enactment of new legal or regulatory measures (e.g., the Dodd-Frank Wall Street Reform and Consumer Protection Act ("Dodd-Frank") and the Tax Cuts and Jobs Act of 2017 (the "Tax Act")) or the modification or elimination of pre-existing measures;

e. significant changes in U.S. monetary or fiscal policy, including new or revised monetary programs or targets adopted or announced by the Federal Reserve ("monetary tightening or easing") or significant new federal legislation materially affecting the federal budget ("fiscal tightening or expansion");

f. competition from other sources (e.g., so-called Fintech enterprises);

g. similar uncertainties inherent in banking operations or business generally, including technological developments and changes; and

h. other risks detailed from time to time within our filings with the Securities and Exchange Commission ("SEC").

Readers are cautioned not to place undue reliance on forward-looking statements in this Report, which speak only as of the date hereof. We undertake no general obligation to revise or update the forward-looking statements contained in this Report to reflect the occurrence of unanticipated events at any point in the future. This Quarterly Report should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2017 and our other filings with the SEC.

# 37

USE OF NON-GAAP FINANCIAL MEASURES

The Securities and Exchange Commission (SEC) has adopted Regulation G, which applies to all public disclosures, including earnings releases, made by registered companies that contain “non-GAAP financial measures.”  GAAP is generally accepted accounting principles in the United States of America.  Under Regulation G, companies making public disclosures containing non-GAAP financial measures must also disclose, along with each non-GAAP financial measure, certain additional information, including a reconciliation of the non-GAAP financial measure to the closest comparable GAAP financial measure and a statement of the Company’s reasons for utilizing the non-GAAP financial measure as part of its financial disclosures.  The SEC has exempted from the definition of “non-GAAP financial measures” certain commonly used financial measures that are not based on GAAP.  When these exempted measures are included in public disclosures, supplemental information is not required.  The following measures used in this Report, which are commonly utilized by financial institutions, have not been specifically exempted by the SEC and may constitute "non-GAAP financial measures" within the meaning of the SEC's rules, although we are unable to state with certainty that the SEC would so regard them.

Tax-Equivalent Net Interest Income and Net Interest Margin: Net interest income, as a component of the tabular presentation by financial institutions of Selected Financial Information regarding their recently completed operations, as well as disclosures based on that tabular presentation, is commonly presented on a tax-equivalent basis.  That is, to the extent that some component of the institution's net interest income, which is presented on a before-tax basis, is exempt from taxation (e.g., is received by the institution as a result of its holdings of state or municipal obligations), an amount equal to the tax benefit derived from that component is added to the actual before-tax net interest income total.  Historically, this adjustment has been considered helpful in comparing the financial institution's net interest income (before tax) to that of another institution or in analyzing the institution’s net interest income trend line over time, to correct any analytical distortion that might otherwise arise from the fact that financial institutions vary widely in the proportions of their portfolios that are invested in tax-exempt securities, or from the fact that even a single institution may significantly alter over time the proportion of its own portfolio that is invested in tax-exempt obligations.  Moreover, net interest income is itself a component of a second financial measure commonly used by financial institutions, net interest margin, which is the ratio of net interest income (before tax) to average earning assets. For purposes of this measure as well, tax-equivalent net interest income is generally used by financial institutions, again to provide a better basis of comparison from institution to institution and/or to better demonstrate a single institution’s performance over time. Arrow follows these practices. As a result of the reduced federal corporate tax rates enacted by the Tax Act, tax-equivalent net interest income and the resulting net interest margin on a tax-equivalent basis have become less comparable to prior period levels when analyzing a financial institution’s performance over time. While Arrow continues to calculate, publish, and monitor these tax-equivalent financial performance measures, all users of this information should be aware of the non-comparative nature of post-Tax Act period results. Arrow presents net interest income and net interest margin on a GAAP basis in the relative sections of this Report in order to provide a consistently comparable performance measure over time as these measures are not effected by federal income tax rates.

The Efficiency Ratio: Financial institutions often use an "efficiency ratio" as a measure of expense control.  The efficiency ratio typically is defined as the ratio of noninterest expense to net interest income and noninterest income.  Net interest income as utilized in calculating the efficiency ratio is typically the same as the net interest income presented in Selected Financial Information table discussed in the preceding paragraph, i.e., it is expressed on a tax-equivalent basis.  Moreover, many financial institutions, in calculating the efficiency ratio, also adjust both noninterest expense and noninterest income to exclude from these items (as calculated under GAAP) certain recurring component elements of income and expense, such as intangible asset amortization (which is included in noninterest expense under GAAP but may be excluded therefrom for purposes of calculating the efficiency ratio) and securities gains or losses (which are reflected in the calculation of noninterest income under GAAP but may be excluded therefrom for purposes of calculating the efficiency ratio).  We make these adjustments.

Tangible Book Value per Share:  Tangible equity is total stockholders’ equity less intangible assets.  Tangible book value per share is tangible equity divided by total shares issued and outstanding.  Tangible book value per share is often regarded as a more meaningful comparative ratio than book value per share as calculated under GAAP, that is, total stockholders’ equity including intangible assets divided by total shares issued and outstanding.  Intangible assets includes many items, but in our case, essentially represents goodwill.

Adjustments for Certain Items of Income or Expense:  In addition to our regular utilization in our public filings and disclosures of the various non-GAAP measures commonly utilized by financial institutions discussed above, we also may elect from time to time, in connection with our presentation of various financial measures prepared in accordance with GAAP, such as net income, earnings per share (i.e. EPS), return on average assets (i.e. ROA), and return on average equity (i.e. ROE), to provide as well certain comparative disclosures that adjust these GAAP financial measures, typically by removing therefrom the impact of certain transactions or other material items of income or expense that are unusual or unlikely to be repeated.  We do so only if we believe that provision of the resulting non-GAAP financial measures may improve the average investor's understanding of our results of operations by separating out items that have a disproportional positive or negative impact on the particular period in question or by otherwise permitting a better comparison from period-to-period in our results of operations with respect to our fundamental lines of business, including the commercial banking business.

We believe that the non-GAAP financial measures disclosed by us from time-to-time are useful in evaluating our performance and that such information should be considered as supplemental in nature, and not as a substitute for or superior to, the related financial information prepared in accordance with GAAP.  Our non-GAAP financial measures may differ from similar measures presented by other companies.

# 38

Arrow Financial Corporation Selected Quarterly Information (Dollars In Thousands, Except Per Share Amounts- Unaudited)
Quarter Ended	3/31/2018			12/31/2017			9/30/2017			6/30/2017			3/31/2017
Net Income	$	8,531		$	8,071		$	7,416		$	7,208		$	6,631
Transactions Recorded in Net Income (Net of Tax):
Net Gain (Loss) on Securities Transactions	—			(278		)	6			—			—
Tax Benefit from Net Deferred Tax Liability Revaluation	—			1,116			—			—			—
Share and Per Share Data:(1)
Period End Shares Outstanding	13,950			13,930			13,891			13,900			13,886
Basic Average Shares Outstanding	13,936			13,905			13,889			13,890			13,889
Diluted Average Shares Outstanding	14,016			14,006			13,966			13,975			14,001
Basic Earnings Per Share	$	0.61		$	0.58		$	0.53		$	0.52		$	0.48
Diluted Earnings Per Share	0.61			0.58			0.53			0.52			0.47
Cash Dividend Per Share	0.250			0.250			0.243			0.243			0.243
Selected Quarterly Average Balances:
Interest-Bearing Deposits at Banks	27,978			27,047			27,143			24,480			23,565
Investment Securities	642,442			660,043			677,368			684,570			695,615
Loans	1,971,240			1,930,590			1,892,766			1,842,543			1,781,113
Deposits	2,305,736			2,284,206			2,193,778			2,206,365			2,161,798
Other Borrowed Funds	184,613			187,366			262,864			207,270			205,436
Stockholders’ Equity	251,109			247,253			243,801			239,396			235,257
Total Assets	2,763,706			2,744,180			2,725,653			2,677,843			2,626,470
Return on Average Assets, annualized	1.25		%	1.17		%	1.08		%	1.08		%	1.02		%
Return on Average Equity, annualized	13.78		%	12.95		%	12.07		%	12.08		%	11.43		%
Return on Tangible Equity, annualized (2)	15.24		%	14.36		%	13.40		%	13.45		%	12.76		%
Average Earning Assets	2,641,660			2,617,680			2,597,277			2,551,593			2,500,293
Average Paying Liabilities	2,050,661			2,029,811			2,012,802			2,005,421			1,977,628
Net Interest Income (GAAP)	20,402			20,314			19,650			19,227			18,461
Net Interest Margin, annualized (GAAP)	3.13		%	3.08		%	3.00		%	3.02		%	2.99		%
Net Interest Income, Tax-Equivalent (Non-GAAP) (3)	20,893			21,294			20,616			20,176			19,409
Tax-Equivalent Adjustment (Non-GAAP) (3)	491			980			966			949			948
Net Interest Margin, annualized (Non-GAAP) (3)	3.21		%	3.23		%	3.15		%	3.17		%	3.15		%
Efficiency Ratio Calculation: (4)
Noninterest Expense	$	15,955		$	16,045		$	15,548		$	15,637		$	15,475
Less: Intangible Asset Amortization	67			69			69			70			71
Net Noninterest Expense	15,888			15,976			15,479			15,567			15,404
Net Interest Income, Tax-Equivalent (Non-GAAP) (3)	20,893			21,294			20,616			20,176			19,409
Noninterest Income	6,888			6,752			7,141			7,057			6,695
Less: Net Securities Gain (Loss)	—			(458		)	10			—			—
Less: Net Unrealized Gain on Equity Securities	18			—			—			—			—
Net Gross Income	27,763			28,504			27,747			27,233			26,104
Efficiency Ratio (Non-GAAP)	57.23		%	56.05		%	55.79		%	57.16		%	59.01		%
Period-End Capital Information:
Total Stockholders’ Equity (i.e. Book Value)	$	252,734		$	249,603		$	244,648		$	240,752		$	236,111
Book Value per Share (1)	18.12			17.92			17.61			17.32			17.00
Goodwill and Other Intangible Assets, net	24,045			24,162			24,268			24,355			24,448
Tangible Book Value per Share (1,2)	16.39			16.18			15.86			15.57			15.24
Capital Ratios:(5)
Tier 1 Leverage Ratio	9.62		%	9.49		%	9.30		%	9.35		%	9.37		%
Common Equity Tier 1 Capital Ratio	12.97		%	12.89		%	12.70		%	12.68		%	12.84		%
Tier 1 Risk-Based Capital Ratio	14.03		%	13.97		%	13.79		%	13.79		%	13.99		%
Total Risk-Based Capital Ratio	15.04		%	14.99		%	14.77		%	14.77		%	14.98		%
Assets Under Trust Administration   and Investment Management	$	1,470,191		$	1,452,994		$	1,411,608		$	1,356,262		$	1,333,690

# 39

Arrow Financial Corporation

Selected Quarterly Information - Continued

(Dollars In Thousands, Except Per Share Amounts- Unaudited)

Footnotes:
1.	Share and Per Share Data have been restated for the September 28, 2017, 3% stock dividend.
2.	Tangible Book Value, Tangible Equity and Return on Tangible Equity exclude goodwill and other intangible assets, net from total equity.  These are non-GAAP financial measures which we believe provide investors with information that is useful in understanding our financial performance. See "Use of Non-GAAP Financial Measures" on page 37.
		3/31/2018			12/31/2017			9/30/2017			6/30/2017			3/31/2017
	Total Stockholders' Equity (GAAP)	$	252,734		$	249,603		$	244,648		$	240,752		$	236,111
	Less: Goodwill and Other Intangible assets, net	24,045			24,162			24,268			24,355			24,448
	Tangible Equity (Non-GAAP)	$	228,689		$	225,441		$	220,380		$	216,397		$	211,663
	Period End Shares Outstanding	13,950			13,930			13,891			13,900			13,886
	Tangible Book Value per Share      (Non-GAAP)	$	16.39		$	16.18		$	15.86		$	15.57		$	15.24
	Net Income	8,531			8,071			7,416			7,208			6,631
	Return on Tangible Equity (Net Income/Tangible Equity - Annualized)	15.24		%	14.36		%	13.40		%	13.45		%	12.76		%
3.	Net Interest Margin is the ratio of our annualized tax-equivalent net interest income to average earning assets. This is also a non-GAAP financial measure which we believe provides investors with information that is useful in understanding our financial performance. See "Use of Non-GAAP Financial Measures" on page 37.
		3/31/2018			12/31/2017			9/30/2017			6/30/2017			3/31/2017
	Interest Income (GAAP)	$	22,418		$	22,135		$	21,599		$	20,926		$	19,997
	Add: Tax-Equivalent adjustment      (Non-GAAP)	491			980			966			949			948
	Interest Income - Tax Equivalent      (Non-GAAP)	$	22,909		$	23,115		$	22,565		$	21,875		$	20,945
	Net Interest Income (GAAP)	$	20,402		$	20,314		$	19,650		$	19,227		$	18,461
	Add: Tax-Equivalent adjustment      (Non-GAAP)	491			980			966			949			948
	Net Interest Income - Tax Equivalent      (Non-GAAP)	$	20,893		$	21,294		$	20,616		$	20,176		$	19,409
	Average Earning Assets	$	2,641,660		$	2,617,680		$	2,597,277		$	2,551,593		$	2,500,293
	Net Interest Margin (Non-GAAP)*	3.21		%	3.23		%	3.15		%	3.17		%	3.15		%
4.	Financial Institutions often use the "efficiency ratio", a non-GAAP ratio, as a measure of expense control. We believe the efficiency ratio provides investors with information that is useful in understanding our financial performance. We define our efficiency ratio as the ratio of our noninterest expense to our net gross income (which equals our tax-equivalent net interest income plus noninterest income, as adjusted). There is no GAAP financial measure that is closely comparable to the efficiency ratio. See "Use of Non-GAAP Financial Measures" on page 37.
5.	For the recently-completed quarter, all of the regulatory capital ratios in the table on page 40 and the table in this Note 5, below, as well as the Total Risk-Weighted Assets and Common Equity Tier 1 Capital amounts listed in the table below, are estimates based on, and calculated in accordance with, bank regulatory capital rules. The Common Equity Tier 1 Capital Ratio (CET1 Ratio) of Arrow as of March 31, 2018 that is listed in the tables (i.e., 12.97%) not only exceeds the currently required minimum CET1 Ratio (including Conservation Buffer) of 6.375%, but also exceeds the minimum CET1 Ratio that will be required when the Conservation Buffer is fully phased-in, on January 1, 2019, of 7.00% (including the ultimate required Conservation Buffer of 2.50%).
		3/31/2018			12/31/2017			9/30/2017			6/30/2017			3/31/2017
	Total Risk Weighted Assets	$	1,889,719		$	1,856,242		$	1,830,730		$	1,802,455		$	1,747,318
	Common Equity Tier 1 Capital	265,066			259,378			232,473			228,586			224,369
	Common Equity Tier 1 Capital Ratio	12.97		%	12.89		%	12.70		%	12.68		%	12.84		%

     * Quarterly ratios have been annualized.

# 40

Average Consolidated Balance Sheets and Net Interest Income Analysis
(see “Use of Non-GAAP Financial Measures” on page 38)
(Fully Taxable Basis using a marginal federal tax rate of 35% for 2017, 21% for 2018)
(Dollars In Thousands)
Quarter Ended March 31:	2018								2017
				Interest			Rate					Interest			Rate
	Average			Income/			Earned/		Average			Income/			Earned/
	Balance			Expense			Paid		Balance			Expense			Paid
Interest-Bearing Deposits at Banks	$	27,978		$	134		1.94	%	$	23,565		$	60		1.03	%
Investment Securities:
Fully Taxable	359,908			1,895			2.14		403,930			1,994			2.00
Exempt from Federal Taxes	282,534			1,947			2.79		291,685			2,361			3.28
Loans	1,971,240			18,933			3.90		1,781,113			16,530			3.76
Total Earning Assets	2,641,660			22,909			3.52		2,500,293			20,945			3.40
Allowance for Loan Losses	(18,523		)						(16,976		)
Cash and Due From Banks	35,608								35,525
Other Assets	104,961								107,628
Total Assets	$	2,763,706							$	2,626,470
Deposits:
Interest-Bearing Checking Accounts	$	914,116		387			0.17		$	894,911		331			0.15
Savings Deposits	723,660			522			0.29		677,662			291			0.17
Time Deposits of $250,000 or More	63,406			204			1.30		33,758			55			0.66
Other Time Deposits	164,866			259			0.64		165,861			228			0.56
Total Interest-Bearing Deposits	1,866,048			1,372			0.30		1,772,192			905			0.21
Short-Term Borrowings	111,835			197			0.71		130,436			211			0.66
FHLBNY Term Advances and Other Long-Term Debt	72,778			447			2.49		75,000			420			2.27
Total Interest-Bearing Liabilities	2,050,661			2,016			0.40		1,977,628			1,536			0.31
Demand Deposits	439,688								389,606
Other Liabilities	22,248								23,979
Total Liabilities	2,512,597								2,391,213
Stockholders’ Equity	251,109								235,257
Total Liabilities and Stockholders’ Equity	$	2,763,706							$	2,626,470
Net Interest Income (Tax-equivalent Basis)      (Non-GAAP) (1)				20,893								19,409
Reversal of Tax Equivalent Adjustment				(491		)	(0.08	)%				(948		)	(0.15	)%
Net Interest Income				$	20,402							$	18,461
Net Interest Spread (Non-GAAP) (1)							3.12	%							3.09	%
Net Interest Margin (Non-GAAP) (1)							3.21	%							3.15	%

¹See Note 3 on p. 39.

# 41

OVERVIEW

We reported net income for the first quarter of 2018 of $8.5 million, an increase of $1.9 million, or 28.7%, over our net income for the first quarter of 2017. Diluted earnings per share (EPS) for the quarter was $0.61, an increase of 29.8% from the EPS of $0.47 reported for the first quarter of 2017. Return on average equity (ROE) for the first quarter of 2018 continued to be strong at 13.78%, up from an ROE of 11.43% for the first quarter ended March 31, 2017. Return on average assets (ROA) for the 2018first quarter was 1.25%, an increase from an ROA of 1.02% for the first quarter ended March 31, 2017. Net interest income on a GAAP basis increased to $20.4 million, up 10.5% over the $18.5 million total in the comparable quarter of 2017. Net interest margin for the first quarter of 2018 was 3.13%, up from 2.99% for the first quarter of 2017. Tax-equivalent net interest income (a non-GAAP measure) also increased by approximately 7.6%, mainly due to the 5.7% increase in average earning assets from the first quarter of 2017, and a 6 basis point increase in the tax-equivalent net interest margin, increasing from 3.15% from the first quarter of 2017 to 3.21% for the first quarter 2018. The composition of average earning assets changed in the current quarter through a 10.7% increase in higher relative yielding average loans and a 7.6% decrease in lower relative yielding average investment securities. In addition to the composition of the balance sheet, a significant factor contributing to increased profitability was reduced tax rates resulting from the Tax Act. The provision for income taxes for the first quarter of 2018 decreased to $2.1 million as compared to $2.7 million for the first quarter of 2017. Total loans increased between the respective period ends by $182.2 million, or 10.1%, while investment securities decreased by $394 thousand, or 0.1%. On the funding side, average interest-bearing deposits increased 5.3% and average non-interest bearing demand deposits increased 12.9% in the first quarter of 2018 as compared to the same quarter in 2017. The provision for loan losses increased $388 thousand during the first quarter of 2018 as compared to the first quarter of 2017, mainly due to total loan growth and the mix of the loan portfolio. Noninterest income increased $194 thousand or 2.9% while noninterest expense increased $480 thousand or 3.1%.

The changes in net income, net interest income and net interest margin between the three month periods are discussed in detail under the heading "RESULTS OF OPERATIONS," beginning on page 54.

Regulatory Capital and Increase in Stockholders' Equity: At March 31, 2018, we continued to exceed by a substantial amount all required minimum capital ratios under the bank regulatory capital rules at both the holding company and bank levels. At that date, both of our banks, as well as our holding company, continued to qualify as "well-capitalized" under the capital classification guidelines as defined by the current bank regulatory capital rules. Because of our continued profitability and strong asset quality, our regulatory capital levels throughout recent years have consistently remained well in excess of the various required regulatory minimums in effect from time to time, as they do at present. As a result of the Dodd-Frank Act, however, required minimum regulatory capital levels for insured banks and their parent holding companies will continue to increase, as a percentage of risk-based assets in 2019.

Stockholders’ equity was $252.7 million at March 31, 2018, an increase of $3.1 million, or 1.3%, from the December 31, 2017 level of $249.6 million, and an increase of $16.6 million, or 7.0%, from the prior-year level. The components of the change in stockholders’ equity since year-end 2017 are presented in the Consolidated Statement of Changes in Stockholders’ Equity on page 6, and are discussed in more detail in the next section

At March 31, 2018, our book value per share was $18.12, up by 6.6% over the prior-year level, and our tangible book value per share (a non-GAAP measure that deducts intangible assets from stockholders' equity) was $16.39, an increase of $1.15, or 7.5%, over the level as of March 31, 2017. See the disclosure on page 37 related to our use of non-GAAP financial measures generally, and tangible book value, specifically. In the first three months of 2018, total stockholders' equity increased by 1.3% (not annualized) and our total book value per share also increased by 8.1%. The increase in stockholders' equity over the first three months of 2018 principally reflected the following factors: (i) $8.5 million of net income for the period and (ii) issuance of $2.7 million of common stock through our employee benefit and dividend reinvestment plans; reduced by (iii) cash dividends of $3.5 million; and (iv) repurchases of our own common stock, primarily in connection with our approved treasury stock repurchase plan, of $0.6 million. On March 31, 2018, our closing stock price was $33.95, representing a trading multiple of 2.07 to our tangible book value. As adjusted for a 3.0% stock dividend distributed September 28, 2017, the Company paid a quarterly cash dividend of $0.243 per share for the first quarter of 2017, and a cash dividend of $0.25 per share for the last quarter of 2017 and the first quarter of 2018.

Loan Quality: Our net charge-offs for the first quarter of 2018 were $275 thousand as compared to $153 thousand for the comparable 2017 quarter. Our ratio of net charge-offs to average loans (annualized) was 0.06% for the first quarter of 2018 compared to 0.03% for the first quarter of 2017. At March 31, 2018, our allowance for loan losses was $19.1 million representing 0.96% of total loans, up 1 basis point from the December 31, 2017 ratio. We believe this allowance is appropriate and reflects the continuing strong credit quality in the loan portfolio.

Nonperforming loans were $4.6 million at March 31, 2018, representing 0.23% of period-end loans, a decrease of 1 basis point from our prior year comparable quarter ratio, which compares favorably with the weighted average ratio of our peer group of 0.67% at December 31, 2017.

Loan Segments: During the first quarter of 2018, we experienced increases in outstanding balances in all three segments of our loan portfolio, without any significant deterioration in our credit quality. During the quarter, our total loans grew by $42.3 million, or 2.2% as compared to the balance at December 31, 2017. The largest increase was in consumer loans which increased during the quarter by $23.8 million, or 4.0%. In addition, our total commercial loan portfolio increased by $9.2 million, or 1.6%, and our residential real estate loans expanded by $9.2 million, or 1.2%.

Commercial Loans: These loans comprised 6.4% of our loan portfolio at period-end. The business sector in our service area, including small- and mid-sized businesses with headquarters in the area, continued to be in reasonably good financial condition at period-end.

Commercial Real Estate Loans: These loans comprised 22.8% of our loan portfolio at period-end. Commercial property values in our region have remained stable in recent periods. We update the appraisals on our nonperforming and watched CRE

# 42

loan properties as deemed necessary, usually when the loan is downgraded or when we perceive significant market deterioration since our last appraisal.

Consumer Loans: These loans (primarily automobile loans) comprised 31.4% of our loan portfolio at period-end. Consumer automobile loans at March 31, 2018, were $620 million, or 99.0% of this portfolio segment. In the first three months of 2018, we did not experience any significant increase in our delinquency rate or in the percentage of nonperforming loans in this segment.

Residential Real Estate Loans: These loans, including home equity loans, made up 39.3% of our portfolio at period-end. The residential real estate market in our service area has been stable in recent periods. We originated nearly all of the residential real estate loans currently held in our portfolio and apply conservative underwriting standards to our originations. We typically sell a portion of our residential real estate mortgage originations into the secondary market. The ratio of our sales of originations to total originations tends to fluctuate from period to period, although this ratio has generally declined somewhat in recent periods.

Liquidity and Access to Credit Markets: We have not experienced any liquidity problems or special concerns thus far in 2018, nor did we in any prior years back to and during the financial crisis. The terms of our lines of credit with our correspondent banks, the FHLBNY and the Federal Reserve Bank have not changed significantly in recent periods (see our general liquidity discussion on page 53). Historically, we have principally relied on asset-based liquidity (i.e., funds in overnight investments and cash flow from maturing investments and loans) with liability-based liquidity as a secondary source of funds (our main liability-based sources are overnight borrowing arrangements with our correspondent banks, an arrangement for overnight borrowing and term credit advances from the FHLBNY, and an additional arrangement for short-term advances at the Federal Reserve Bank discount window). We regularly perform a liquidity stress test and periodically test our contingent liquidity plan to ensure that we can generate an adequate amount of available funds to meet a wide variety of potential liquidity crises, including a severe crisis.

Visa Class B Common Stock: We, like other former Visa member banks, bear some indirect contingent liability for Visa's direct liability arising out of certain antitrust claims involving merchant discounts to the extent that Visa's liability might exceed the remaining litigation escrow account amount. In light of the current state of covered litigation at Visa, as well as the substantial remaining dollar amounts in Visa's escrow fund, we determined that the balance that Visa maintains in its escrow fund is substantially sufficient to satisfy Visa's remaining direct liability to such claims without further resort to the contingent liability of the former Visa member banks such as ours. At March 31, 2018, the Company held 27,771 shares of Visa Class B common stock. A potential future conversion of these shares into Visa Class A common stock could result in our receiving approximately 46 thousand shares of Visa Class A common stock. There continue to be restrictions remaining on Visa Class B shares held by us. We continue not to recognize any economic value for these shares.

# 43

CHANGE IN FINANCIAL CONDITION

Summary of Selected Consolidated Balance Sheet Data

(Dollars in Thousands)

	At Period-End						$ Change			$ Change			% Change		% Change
	March 31, 2018		December 31, 2017		March 31, 2017		From December			From March			From December (not annualized)		From March
Interest-Bearing Bank Balances	$	70,747	$	30,276	$	14,645	$	40,471		$	56,102		133.7	%	383.1	%
Securities Available-for-Sale	305,589		300,200		347,159		5,389			(41,570		)	1.8	%	(12.0	)%
Securities Held-to-Maturity	330,124		335,907		335,211		(5,783		)	(5,087		)	(1.7	)%	(1.5	)%
Equity Securities (1)	1,579		—		—		1,579			1,579
Loans (2)	1,993,037		1,950,770		1,810,805		42,267			182,232			2.2	%	10.1	%
Allowance for Loan Losses	19,057		18,586		17,216		471			1,841			2.5	%	10.7	%
Earning Assets (2)	2,705,856		2,627,102		2,514,646		78,754			191,210			3.0	%	7.6	%
Total Assets	$	2,826,687	$	2,760,465	$	2,656,386	$	66,222		$	170,301		2.4	%	6.4	%
Demand Deposits	$	452,347	$	441,945	$	402,506	$	10,402		$	49,841		2.4	%	12.4	%
Interest-Bearing Checking Accounts	944,161		907,315		959,170		36,846			(15,009		)	4.1	%	(1.6	)%
Savings Deposits	762,220		694,573		696,625		67,647			65,595			9.7	%	9.4	%
Time Deposits over $250,000	85,403		38,147		30,993		47,256			54,410			123.9	%	175.6	%
Other Time Deposits	167,142		163,136		167,242		4,006			(100		)	2.5	%	(0.1	)%
Total Deposits	$	2,411,273	$	2,245,116	$	2,256,536	$	166,157		$	154,737		7.4	%	6.9	%
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	$	74,957	$	64,966	$	32,035	$	9,991		$	42,922		15.4	%	134.0	%
FHLBNY Advances - Overnight	—		105,000		32,000		(105,000		)	(32,000		)	(100.0	)%	(100.0	)%
FHLBNY Advances - Term	45,000		55,000		55,000		(10,000		)	(10,000		)	(18.2	)%	(18.2	)%
Stockholders' Equity	252,734		249,603		236,111		3,131			16,623			1.3	%	7.0	%

(1) Equity Securities were included in Securities Available-for-Sale prior to the January 1, 2018 adoption of ASU 2016-01

(2) Includes Nonaccrual Loans

Municipal Deposits:Fluctuations in balances of our interest-bearing checking accounts are largely the result of municipal deposit fluctuations.  Municipal deposits on average represent 27% to 33% of our total deposits. Municipal deposits are typically placed in interest-bearing checking and savings accounts, as well as various time deposits.

In general, there is a seasonal pattern to municipal deposits which dip to a low point in August each year.  Account balances tend to increase throughout the fall and into early winter from tax deposits, flatten out after the beginning of the ensuing calendar year, and increase again at the end of March from the electronic deposit of NYS Aid payments to school districts.  In addition to these seasonal fluctuations within types of accounts, the overall level of municipal deposit balances fluctuates from year-to-year as some municipalities move their accounts in and out of our banks due to competitive factors.  Often, the balances of municipal deposits at the end of a quarter are not representative of the average balances for that quarter.

If in the future, interest rates begin to rise significantly or the competition for municipal deposits otherwise becomes more intense, we may experience an elevation in the rates we are forced to pay on such deposits above our normal rates or, if we decline to pay such rates, we may experience a decrease in municipal deposit levels.

Changes in Sources of Funds: Our total deposits increased$166.2 million, or 7.4%, from December 31, 2017 to March 31, 2018. Our municipal deposits increased by 15.2% during the period, mainly due to the receipt of NYS Aid payments to school districts in March 2018, while our consumer and business deposit balances increased by 4.3%. Due to this deposit growth along with the 15.4% increase in our securities sold under agreements to repurchase, we were able to pay off our FHLBNY Advances-Overnight at March 31, 2018. The first quarter increase in deposit balances also included seasonal municipal deposit growth and the use of brokered deposits to diversify balance sheet funding. At March 31, 2018, our term advances from the FHLBNY were $45 million, reflecting the non-renewal of a $10 million advance that matured during the quarter.

Changes in Earning Assets: Our loan portfolio at March 31, 2018, was $1.99 billion, up by $42.3 million, or 2.2%, from the December 31, 2017 level and up by $182.2 million, or 10.1%, from the March 31, 2017 level. We experienced the following trends in our four largest segments:

1. Commercial loans. This segment of our portfolio decreased slightly by $1.6 million, or 1.2%, during the first three months of 2018, representing a slight softening of demand for such loans during the period.

2. Commercial real estate loans. This segment of our portfolio increased by $10.8 million, or 2.4%, during the first three months of 2018, representing the continued strong demand for such loans.

# 44

3. Consumer loans (primarily automobile loans through indirect lending). As of March 31, 2018, these loans, primarily auto loans, had increased by $23.8 million, or 4.0%, from the December 31, 2017 balance, reflecting a continuation of strong demand for new and used vehicles region-wide and an expansion of our dealer network for indirect lending.

4. Residential real estate loans. This segment increased during the first three months of 2018, by $9.2 million, or 1.2%. As in prior periods, we elected to sell a portion of the residential mortgage loans we originated during the period to Freddie Mac. Gross originations were down during the period, compared to the comparable 2017 period reflecting lower housing inventory levels and a rising rate environment.

Deposit Trends

The following two tables provide information on trends in the balance and mix of our deposit portfolio by presenting, for each of the last five quarters, the quarterly average balances by deposit type and the percentage of total deposits represented by each deposit type. The principal change in deposit balances from March 31, 2017 was the steady and significant increase in demand deposits and savings deposits as well as an increase in time deposits over $250,000 as of March 31, 2018 due to the increase in market rates. In addition, first quarter increase in deposit balances also included $45 million of floating rate brokered deposits, based on the one-month LIBOR rate, which were acquired to diversify balance sheet funding. As mentioned previously, the volatility in interest-bearing checking deposit account balances is mainly due to seasonal fluctuations in municipal deposits. If and to the extent that interest rates, and corresponding deposit rates, across all maturities, begin to increase in future periods, even if such increases are very gradual, we would expect to see further growth in time deposits.

Quarterly Average Deposit Balances

(Dollars in Thousands)

	Quarter Ended
	3/31/2018		12/31/2017		9/30/2017		6/30/2017		3/31/2017
Demand Deposits	$	439,688	$	441,761	$	443,840	$	408,214	$	389,606
Interest-Bearing Checking Accounts	914,116		945,414		869,748		918,235		894,911
Savings Deposits	723,660		701,694		682,347		681,197		677,662
Time Deposits over $250,000	63,406		32,430		31,067		31,126		33,758
Other Time Deposits	164,866		162,907		166,776		167,593		165,861
Total Deposits	$	2,305,736	$	2,284,206	$	2,193,778	$	2,206,365	$	2,161,798

Percentage of Total Quarterly Average Deposits

	Quarter Ended
	3/31/2018		12/31/2017		9/30/2017		6/30/2017		3/31/2017
Demand Deposits	19.1	%	19.3	%	20.2	%	18.5	%	18.0	%
Interest-Bearing Checking Accounts	39.6		41.5		39.6		41.6		41.4
Savings Deposits	31.4		30.7		31.2		30.9		31.3
Time Deposits over $250,000	2.7		1.4		1.4		1.4		1.6
Other Time Deposits	7.2		7.1		7.6		7.6		7.7
Total Deposits	100.0	%	100.0	%	100.0	%	100.0	%	100.0	%

Quarterly Cost of Deposits

	Quarter Ended
	3/31/2018		12/31/2017		9/30/2017		6/30/2017		3/31/2017
Demand Deposits	—	%	—	%	—	%	—	%	—	%
Interest-Bearing Checking Accounts	0.17		0.18		0.17		0.17		0.15
Savings Deposits	0.29		0.23		0.21		0.19		0.17
Time Deposits over $250,000	1.30		1.17		0.84		0.85		0.66
Other Time Deposits	0.64		0.60		0.57		0.56		0.56
Total Deposits	0.24		0.20		0.19		0.18		0.17

During the quarter ended March 31, 2018, cost of total deposits increased 4 basis points from 0.20% to 0.24%. Cost of savings deposits increased from 0.23% to 0.29% in the first quarter of 2018, while the cost of time deposits over $250,000 increased from 1.17% to 1.30%. Cost of other time deposits increased from 0.60% to 0.64%, while cost of interest bearing checking accounts decreased one basis point in the first quarter of 2018. Some of the recent growth in relative higher paying deposit accounts may be due to higher market interest rates. Given the uncertainty surrounding the future of interest rates, we are unable to predict at this time what the short- or long-term effect of the Federal Reserve’s interest rate policy may be.

Non-Deposit Sources of Funds

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We have several sources of funding other than new deposits. Historically, we have borrowed funds from the FHLBNY under a variety of programs, including fixed and variable rate short-term borrowings and borrowings in the form of "structured advances." These structured advances typically have original maturities of 3 to 10 years with some advances being callable by the FHLBNY at certain dates. If the advances are called, we may elect to receive replacement advances from the FHLBNY at the then prevailing FHLBNY rates of interest. We currently do not have, and have not had in recent periods, any structured advances in this portfolio.

We no longer rely on TRUPs as a source of new funds. As a result of the passage of the Dodd-Frank Act in 2010 and its removal of Tier 1 regulatory capital treatment for TRUPs issued after the Act's grandfathering date, we like all insured financial institutions of our size or larger have not issued any TRUPs since that date and are not likely to issue any TRUPs in the future. However, consistent with the grandfathering provision in Dodd-Frank, the $20 million principal amount of Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts listed on our consolidated balance sheet as of March 31, 2018 (i.e., our previously issued TRUPS) will, subject to certain limits, continue to qualify as Tier 1 regulatory capital for Arrow until such TRUPs mature or are redeemed, as is further discussed under “Capital Resources” beginning on page 51 of this Report. These trust preferred securities are subject to early redemption by us if the proceeds cease to qualify as Tier 1 capital of Arrow for any reason, or if any of certain other unanticipated but negative events should occur, such as any adverse change in tax laws that might deny the Company the ability to deduct interest paid on these obligations for federal income tax purposes.

Loan Trends

The following two tables present, for each of the last five quarters, the quarterly average balances by loan type and the percentage of total loans represented by each loan type. For purposes of the following tables only, we have separately disclosed Home Equity loans from Residential Real Estate loans (they are otherwise included in a single category in this Report). We have also combined Commercial Loans and Commercial Real Estate Loans into a single category (they are treated as separate categories in other sections of this Report). Over the last five quarters, the average balances for all of the below-listed categories of loans have steadily increased, although at different rates.

Quarterly Average Loan Balances

(Dollars in Thousands)

	Quarter Ended
	3/31/2018		12/31/2017		9/30/2017		6/30/2017		3/31/2017
Commercial and Commercial Real Estate	$	569,126	$	564,073	$	561,260	$	556,014	$	541,187
Residential Real Estate	600,076		584,981		563,793		538,884		518,263
Home Equity	139,109		137,975		137,251		138,125		135,910
Consumer Loans	662,929		643,562		630,462		609,520		585,753
Total Loans	$	1,971,240	$	1,930,591	$	1,892,766	$	1,842,543	$	1,781,113

Percentage of Total Quarterly Average Loans

	Quarter Ended
	3/31/2018		12/31/2017		9/30/2017		6/30/2017		3/31/2017
Commercial and Commercial Real Estate	28.9	%	29.2	%	29.7	%	30.2	%	30.4	%
Residential Real Estate	30.5		30.3		29.8		29.2		29.1
Home Equity	7.1		7.1		7.3		7.5		7.6
Consumer Loans	33.5		33.4		33.2		33.1		32.9
Total Loans	100.0	%	100.0	%	100.0	%	100.0	%	100.0	%

Maintenance of High Quality in the Loan Portfolio: In the first three months of 2018, we did not experience any significant fluctuations in the quality of our loan portfolio or any segment thereof. In general, we have historically underwritten our residential real estate loans to secondary market standards for prime loans and have not engaged in subprime mortgage lending as a business line. Similarly, we have historically applied high underwriting standards in our commercial and commercial real estate lending operations and generally in our indirect (automobile) lending program as well. We have occasionally made loans, including indirect loans, to borrowers having FICO scores below the highest credit quality classifications, where special circumstances such as competitive considerations have led us to conclude it was appropriate to do so, with suitable protections against any enhanced perceived risk in such loans. We also have had extensions of credit outstanding to borrowers who have developed credit problems after origination resulting in deterioration of their FICO scores.

Residential Real Estate Loans: In recent years, residential real estate and home equity loans have represented the largest single segment of our loan portfolio. Our gross originations for residential real estate loans (including refinancings of mortgage loans) were $31.7 million and $47.5 million for the first three months of 2018 and 2017, respectively. Origination totals exceeded the sum of repayments and prepayments in the first quarters of both years, but we have also sold portions of these originations in the secondary market, primarily to Freddie Mac. In the first three months of 2018, we sold $1.2 million, or 3.9%, of our originations. In the first three months of 2017, we sold a larger dollar amount, $1.8 million, or 3.7%, of our originations, and at a higher premium. We expect to continue to sell a portion of our mortgage loan originations in upcoming periods, although perhaps a decreasing percentage of overall originations if rates continue their

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slow rise across longer maturities. At the same time, if prevailing rates rise substantially, we may see a slowdown in loan growth and perhaps decreasing total originations, particularly if the general economy also falters. At some point, it is possible that we may experience a decrease in our outstanding balances in this largest segment of our portfolio. Additionally, if our local economy or real estate market should suffer a major downturn, the quality of our real estate portfolio may also be negatively impacted.

Commercial Loans and Commercial Real Estate Loans: For the first three months of 2018, combined commercial and commercial real estate loan originations continued to increase.

Substantially all commercial and commercial real estate loans in our portfolio were extended to businesses or borrowers located in our regional markets. Many of the loans in the commercial portfolio have variable rates tied to prime or FHLBNY rates.

Although demand has been steady, it is possible that demand for commercial and commercial real estate loans may generally weaken in upcoming periods and/or that the quality of this segment of the portfolio may experience stress in upcoming periods. This is particularly likely if the ultimate effect of the Fed's current rate hike program triggers a significant and long-lasting increase in prevailing interest rates for medium- or long-term credits. Generally, however, the business sector, at least in our service area, appeared to be in reasonably good financial condition at period-end.

Consumer Loans (primarily automobile loans through indirect lending): At March 31, 2018, our automobile loans (primarily loans originated through dealerships located in upstate New York and Vermont) represented the second largest category of loans in our portfolio, and continued to be a significant component of our business comprising almost a third of our loan portfolio.

Our new automobile loan volume for the first three months of 2018 remained strong, at $88.9 million, up from the $74.6 million originated in the first three months of 2017. As a result of these originations, our consumer loan portfolio also grew in the first three months of 2018, by $23.8 million, or 4.0%, from our December 31, 2017 balance.

For credit quality purposes, we assign our potential automobile loan customers into one of four tiers, ranging from lower to higher quality in terms of anticipated credit risk. Our lending staff not only utilizes credit evaluation software tools but also reviews and evaluates each loan individually. We believe our disciplined approach to evaluating risk has contributed to maintaining our strong loan quality in this segment of our portfolio.

Recently, market data has suggested that auto loan demand is weakening somewhat on a national scale, although not in every market area. Our average maturity for automobile loan originations has expanded in recent years, reflective of a larger market development. If we encounter some weakening in auto demand in our service area (and we have not, to date), we may experience limited, if any, overall growth in this segment of our portfolio in upcoming periods, regardless of whether the auto company lending affiliates continue to offer highly-subsidized loans. Of course, in this segment of our portfolio, as in the other segments, any substantial increase in prevailing interest rates in upcoming periods, presumably in response to the Fed's rate rise program, would likely have some negative impact on our originations. The same also may occur if economic conditions in our indirect loan service area should generally weaken in upcoming periods.

The following table indicates the annualized tax-equivalent yield of each loan category for the past five quarters.

Quarterly Taxable Equivalent Yield on Loans

	Quarter Ended
	3/31/2018		12/31/2017		9/30/2017		6/30/2017		3/31/2017
Commercial and Commercial Real Estate	4.38	%	4.36	%	4.32	%	4.30	%	4.25	%
Residential Real Estate	4.09	%	3.99	%	3.98	%	4.03	%	4.10	%
Home Equity	3.70	%	3.57	%	3.55	%	3.41	%	3.28	%
Consumer Loans	3.34	%	3.29	%	3.23	%	3.21	%	3.14	%
Total Loans	3.90	%	3.83	%	3.80	%	3.79	%	3.76	%

The average yield in our total loan portfolio during the first quarter of 2018 was up compared to the average yield during the first quarter of 2017. For the quarter, yields on all loan types increased in comparison to the immediately preceding quarter with the largest increase being in the home equity portfolio mainly because many of these loans have a variable rate tied to the prime rate. However, the average rates on newly-originated loans made by us in all segments of our portfolio were at least equal to, and in most cases slightly above, the average rates for comparable loans originated by us in the year-earlier quarter.

    Regardless of the future direction or magnitude of changes in prevailing interest rates, the yield on our loan portfolio will ultimately be impacted by such changes. However, the timing and degree of responsiveness, in loans generally and as between various categories of loans, will also be influenced by a variety of other factors, including the extent of federal government participation in the home mortgage market, the makeup of our loan portfolio, the shape of the yield curve, consumer expectations and preferences, and the rate at which the portfolio expands.

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Investment Portfolio Trends

The table below presents the changes in the period-end balances for available-for-sale, held-to-maturity and equity securities investment portfolios from December 31, 2017 to March 31, 2018 (in thousands).

The slight reduction in the portfolios on a combined basis during the period reflected our continued strategy in recent years to reallocate earning assets from investment securities to higher yielding loans to maximize earning asset yields.

	(Dollars in Thousands)
	Fair Value at Period-End							Net Unrealized Gains (Losses) For Period Ended
	3/31/2018		12/31/2017		Change			3/31/2018			12/31/2017			Change
Securities Available-for-Sale:
U.S. Agency Securities	$	59,657	$	59,894	$	(237	)	$	(607	)	$	(434	)	$	(173	)
State and Municipal Obligations	9,743		10,349		(606		)	2			(2		)	4
Mortgage-Backed Securities	235,389		227,596		7,793			(4,644		)	(1,481		)	(3,163		)
Corporate and Other Debt Securities	800		800		—			(200		)	(200		)	—
Mutual Funds and Equity Securities 1	—		1,561		(1,561		)	—			441			(441		)
Total	$	305,589	$	300,200	$	5,389		$	(5,449	)	$	(1,676	)	$	(3,773	)
Securities Held-to-Maturity:
State and Municipal Obligations	$	268,605	$	275,353	$	(6,748	)	$	(4,333	)	$	(177	)	$	(4,156	)
Mortgage-Backed Securities	56,333		60,548		(4,215		)	(853		)	171			(1,024		)
Total	$	324,938	$	335,901	$	(10,963	)	$	(5,186	)	$	(6	)	$	(5,180	)
Equity Securities 1	$	1,579	$	—	$	1,579		$	459		$	—		$	459

Footnote:

1. Beginning January 1, 2018, upon adoption of ASU 2016-01, equity securities with readily determinable fair values are reported separately from Available-for-Sale securities.

At March 31, 2018, we held no investment securities in either of our securities portfolios that consisted of or included, directly or indirectly, obligations of foreign governments or governmental agencies or foreign issuers.

In the periods referenced above, Mortgage-Backed Securities consisted solely of mortgage pass-through securities and Collateralized Mortgage Obligations ("CMOs") issued or guaranteed by U.S. federal agencies.  Mortgage pass-through securities provide to the investor monthly portions of principal and interest pursuant to the contractual obligations of the underlying mortgages. CMOs are pools of mortgage-backed securities, the repayments on which have generally been separated into two or more components (tranches), where each tranche has a separate estimated life and yield.  Our practice has been to purchase only pass-through securities and CMOs that are issued or guaranteed by U.S. federal agencies, and the tranches of CMOs that we purchase generally are those having shorter average lives and/or durations.

Other-Than-Temporary Impairment

Each quarter we evaluate all investment securities with a fair value less than amortized cost, both in the available-for-sale portfolio and the held-to-maturity portfolio, to determine if there exists other-than-temporary impairment for any such security as defined under generally accepted accounting principles. There were no other-than-temporary impairment losses in the first three months of 2018.

Change in Net Unrealized Securities Gains (Losses): Nearly all of the change in our net unrealized gains or losses during recent periods has been attributable to changes in the market yields during the periods in question, with little or no change in the credit-worthiness of the issuers.

Investment Sales, Purchases and Maturities

We had no sales of investment securities within the three month periods ended March 31, 2018 and 2017.

Investment yields in the debt markets experienced some volatility in 2017 and the first three months of 2018. We regularly review our interest rate risk position along with our security holdings to evaluate if market opportunities have arisen that may permit us to reposition certain securities available-for-sale to enhance portfolio performance.

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The following table summarizes purchases of investment securities within the available-for-sale and held-to-maturity portfolios for the three month periods ended March 31, 2018 and 2017, as well as proceeds from the maturity and calls of investment securities within each portfolio for the respective periods presented:

(In Thousands)	Three Months Ended
Purchases:	3/31/2018		3/31/2017
Available-for-Sale Portfolio
State and Municipal Obligations	19,979		—
Mortgage-Backed Securities	—		12,324
Total Purchases	$	19,979	$	12,324
Maturities & Calls	$	9,380	$	11,826

	Three Months Ended
Purchases:	3/31/2018		3/31/2017
Held-to-Maturity Portfolio
State and Municipal Obligations	$	921	$	556
Maturities & Calls	$	6,459	$	10,474

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Asset Quality

The following table presents information related to our allowance and provision for loan losses for the past five quarters.

Summary of the Allowance and Provision for Loan Losses

(Dollars in Thousands, Loans Stated Net of Unearned Income)

	3/31/2018			12/31/2017			9/30/2017			6/30/2017			3/31/2017
Loan Balances:
Period-End Loans	$	1,993,037		$	1,950,770		$	1,908,799		$	1,878,632		$	1,810,805
Average Loans, Year-to-Date	1,971,240			1,862,247			1,839,216			1,811,998			1,781,113
Average Loans, Quarter-to-Date	1,971,240			1,930,590			1,892,766			1,842,543			1,781,113
Period-End Assets	2,826,687			2,760,465			2,744,462			2,721,721			2,656,386
Allowance for Loan Losses, Year-to-Date:
Allowance for Loan Losses, Beginning of Period	$	18,586		$	17,012		$	17,012		$	17,012		$	17,012
Provision for Loan Losses, YTD	746			2,736			1,580			780			358
Loans Charged-off, YTD	(370		)	(1,559		)	(1,197		)	(574		)	(270		)
Recoveries of Loans Previously Charged-off	95			397			300			224			116
Net Charge-offs, YTD	(275		)	(1,162		)	(897		)	(350		)	(154		)
Allowance for Loan Losses, End of Period	$	19,057		$	18,586		$	17,695		$	17,442		$	17,216
Allowance for Loan Losses, Quarter-to-Date:
Allowance for Loan Losses, Beginning of Period	$	18,586		$	17,695		$	17,442		$	17,216		$	17,012
Provision for Loan Losses, QTD	746			1,157			800			422			358
Loans Charged-off, QTD	(370		)	(363		)	(622		)	(305		)	(270		)
Recoveries of Loans Previously Charged-off	95			97			75			109			116
Net Charge-offs, QTD	(275		)	(266		)	(547		)	(196		)	(154		)
Allowance for Loan Losses, End of Period	$	19,057		$	18,586		$	17,695		$	17,442		$	17,216
Nonperforming Assets, at Period-End:
Nonaccrual Loans	$	4,470		$	5,526		$	5,482		$	5,222		$	4,273
Loans Past Due 90 or More Days and Still Accruing Interest	—			319			967			1,821			—
Restructured and in Compliance with   Modified Terms	100			105			828			101			101
Total Nonperforming Loans	4,570			5,950			7,277			7,144			4,374
Repossessed Assets	120			109			62			90			103
Other Real Estate Owned	1,525			1,738			1,651			1,523			1,631
Total Nonperforming Assets	$	6,215		$	7,797		$	8,990		$	8,757		$	6,108
Asset Quality Ratios:
Allowance to Nonperforming Loans	417.00		%	312.37		%	243.16		%	244.15		%	393.60		%
Allowance to Period-End Loans	0.96		%	0.95		%	0.93		%	0.93		%	0.95		%
Provision to Average Loans (Quarter) (1)	0.15		%	0.24		%	0.17		%	0.09		%	0.08		%
Provision to Average Loans (YTD) (1)	0.15		%	0.15		%	0.11		%	0.09		%	0.08		%
Net Charge-offs to Average Loans (Quarter) (1)	0.06		%	0.05		%	0.11		%	0.04		%	0.03		%
Net Charge-offs to Average Loans (YTD) (1)	0.06		%	0.06		%	0.07		%	0.04		%	0.03		%
Nonperforming Loans to Total Loans	0.23		%	0.31		%	0.38		%	0.38		%	0.24		%
Nonperforming Assets to Total Assets	0.22		%	0.28		%	0.33		%	0.32		%	0.23		%
(1) Annualized

Provision for Loan Losses

Through the provision for loan losses, an allowance is maintained that reflects our best estimate of probable incurred loan losses related to specifically identified impaired loans as well as the inherent risk of loss related to the remaining portfolio. Loan charge-offs are recorded to this allowance when loans are deemed uncollectible, in whole or in part. As loans become past due, consideration is given to the status of those loans and whether or not to classify them as nonaccrual loans. Any loans listed as "past due 90 or more days and still accruing interest" have been evaluated and the borrowers have been deemed to have the capacity to repay all principal and interest and, therefore, have not been classified as nonaccrual.

In the first quarter of 2018, we made a $746 thousand provision for loan losses, compared to a provision of $358 thousand for the first quarter of 2017 and a provision of $1,157 thousand for the fourth quarter of 2017. The provision was primarily driven by net charge-offs of $275 thousand, growth in outstanding loan balances, and minor changes in qualitative factors. See Note 3 to our unaudited

# 50

interim consolidated financial statements for a discussion on how we classify our credit quality indicators as well as the balance in each category.

The ratio of the allowance for loan losses to total loans was 0.96% at March 31, 2018, an increase of 1 basis point from 0.95% at December 31, 2017 and an increase of 1 basis point from 0.95% at March 31, 2017.

    We consider our accounting policy relating to the allowance for loan losses to be a critical accounting policy, given the uncertainty involved in evaluating the level of the allowance required to cover credit losses inherent in the loan portfolio, and the material effect that such judgments may have on our results of operations. Our process for determining the provision for loan losses is described in Note 3 to our unaudited interim consolidated financial statements.

Risk Elements

Our nonperforming assets at March 31, 2018 amounted to $6.2 million, a decrease of $1.6 million, from the December 31, 2017 total and an increase of $107 thousand, from the year earlier total. In all recent periods, our ratios of nonperforming assets to total assets have remained below the average ratios for our peer group, although the average peer group ratios have improved dramatically in recent years, from post-crisis levels that were substantially higher than their current levels (and substantially higher than our ratios during such periods). (See page 37 for a discussion of our peer group.) At December 31, 2017, our ratio of loans past due 90 or more days plus nonaccrual loans plus other real estate owned to total assets was 0.27%, well below the 0.61% ratio of our peer group at such date (the latest date for which peer group information is available). At March 31, 2018 our ratio decreased slightly to 0.22%, however, this is still far below the most recent ratio for our peer group.

The following table presents the balance of other non-current loans at period-end as to which interest income was being accrued (i.e. loans 30 to 89 days past due, as defined in bank regulatory guidelines). These non-current loans are not included in our nonperforming assets but entail heightened risk.

Loans Past Due 30-89 Days and Accruing Interest ($ in 000's)
	3/31/2018		12/31/2017		3/31/2017
Commercial Loans	$	90	$	158	$	174
Commercial Real Estate Loans	156		—		—
Residential Real Estate Loans	1,706		1,696		2,497
Consumer Loans - Primarily Indirect Automobile	4,306		7,064		5,048
Total Delinquent Loans	$	6,258	$	8,918	$	7,719

At March 31, 2018, our loans in this category totaled $6.3 million, a decrease of $2.7 million, or 29.8%, from the $8.9 million of such loans at December 31, 2017. The March 31, 2018 total of non-current loans equaled 0.31% of loans then outstanding, whereas the year-end 2017 total equaled 0.46% of loans then outstanding. The decrease from December 31, 2017 is primarily attributable to a decrease in delinquent automobile loans, which were at a seasonally elevated level at year-end2017but declined (improved) during the first three months of 2018.

The number and dollar amount of our performing loans that demonstrate characteristics of potential weakness from time-to-time (potential problem loans) typically is a very small percentage of our portfolio. See the table of Credit Quality Indicators in Note 3 to our unaudited interim consolidated financial statements. We consider all performing commercial and commercial real estate loans classified as substandard or lower (as reported in Note 3) to be potential problem loans. The dollar amount of such loans at March 31, 2018 was $26.1 million, down from the dollar amount of such loans at December 31, 2017, when the amount was $28.8 million, due primarily to the upgrade of several commercial borrowers. These loans will continue to be closely monitored and we do expect to collect all payments of contractual interest and principal in full on these classified loans. Total nonperforming assets at period-end increased by $107 thousand, or 1.8% from March 31, 2017.

The economy in our market area has been relatively strong in recent years, compared to the immediate post-crisis years, but any general weakening of the U.S. economy in upcoming periods would likely have an adverse effect on the economy in our market area as well, and ultimately on our loan portfolio, particularly our commercial and commercial real estate portfolio.

As of March 31, 2018, we held for sale three residential real estate properties and two commercial properties in other real estate owned. We do not expect to acquire a significant number of other real estate properties in the near term as a result of payment defaults or the foreclosure process.

We do not currently anticipate significant increases in our nonperforming assets, other non-current loans as to which interest income is still being accrued or potential problem loans, but can give no assurances in this regard.

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CAPITAL RESOURCES

Regulatory Capital Standards

Capital Adequacy Requirements.An important area of banking regulation is the federal banking system's promulgation and enforcement of minimum capitalization standards for banks and bank holding companies.  

The following is a summary of certain definitions of capital under the various new capital measures in the revised capital rules under Dodd-Frank:

Common Equity Tier 1 Capital (CET1): Equals the sum of common stock instruments and related surplus (net of treasury stock), retained earnings, accumulated other comprehensive income (AOCI), and qualifying minority interests, minus applicable regulatory adjustments and deductions. Such deductions will include AOCI, if the organization has exercised its irrevocable option not to include AOCI in capital (we made such an election). Mortgage-servicing assets, deferred tax assets, and investments in financial institutions are limited to 15 percent of CET1 in the aggregate and 10 percent of CET1 for each such item individually.

Additional Tier 1 Capital: Equals the sum of noncumulative perpetual preferred stock, tier 1 minority interests, grandfathered TRUPs, and Troubled Asset Relief Program instruments, minus applicable regulatory adjustments and deductions.

Tier 2 Capital: Equals the sum of subordinated debt and preferred stock, total capital minority interests not included in Tier 1, and allowance for loan and lease losses (not exceeding 1.25 percent of risk-weighted assets) minus applicable regulatory adjustments and deductions.

The following table presents the current minimum regulatory capital ratios applicable to our holding company and banks under the revised capital rules (as of January 1, 2018), as well as the increased minimum capital ratios that will apply at certain dates over the remaining portion of the phase-in period (i.e., as of January 1, 2019):

Capital Ratio	Year, as of January 1
	2018		2019
Minimum CET1 Ratio	4.500	%	4.500	%
Capital Conservation Buffer ("Buffer")	1.875	%	2.500	%
Minimum CET1 Ratio Plus Buffer	6.375	%	7.000	%
Minimum Tier 1 Risk-Based Capital Ratio	6.000	%	6.000	%
Minimum Tier 1 Risk-Based Capital Ratio Plus Buffer	7.875	%	8.500	%
Minimum Total Risk-Based Capital Ratio	8.000	%	8.000	%
Minimum Total Risk-Based Capital Ratio Plus Buffer	9.875	%	10.500	%
Minimum Leverage Ratio	4.000	%	4.000	%

These minimum capital ratios, especially the CET1 ratio (4.5%) and the enhanced Tier 1 risk-based capital ratio (6.0%), represent a heightened and more restrictive capital regime than institutions like ours previously had to meet under the prior capital rules.

At March 31, 2018, our holding company and both of our banks exceeded by a substantial amount each of the applicable minimum capital ratios established under the revised capital rules, including the minimum CET1 Ratio, the minimum Tier 1 Risk-Based Capital Ratio, the minimum Total Risk-Based Capital Ratio, and the minimum Leverage Ratio, including in the case of each risk-based ratio, the phased-in portion of the capital buffer.

Prompt Corrective Action Capital Classifications. Under applicable banking law, federal banking regulators are required to take prompt corrective action with respect to depository institutions that do not meet certain minimum capital requirements.  For these purposes, the regulators have established five capital classifications for banking institutions, ranging from the highest category of "well-capitalized" to the lowest category of "critically under-capitalized". Under the current capital classifications, a banking institution is considered "well-capitalized" if it meets the following capitalization standards on the date of measurement: a CET1 risk-based capital ratio of 6.50% or greater, a Tier 1 risk-based capital ratio of 8.00% or greater, a total risk-based capital ratio of 10.00% or greater, and a Tier 1 leverage ratio of 5.00% or greater, provided the institution is not subject to any regulatory order or written directive regarding capital maintenance. Federal banking law also ties the ability of banking organizations to engage in certain types of activities and to utilize certain procedures to such organizations' continuing to qualify for inclusion in one of the two highest ranking of these capitalization categories, i.e., as "well-capitalized" or "adequately capitalized."

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Our Current Capital Ratios:The table below sets forth the regulatory capital ratios of our holding company and our two subsidiary banks, Glens Falls National and Saratoga National, under the current capital rules, as of March 31, 2018:

	Common		Tier 1		Total
	Equity		Risk-Based		Risk-Based		Tier 1
	Tier 1 Capital		Capital		Capital		Leverage
	Ratio		Ratio		Ratio		Ratio
Arrow Financial Corporation	12.97	%	14.03	%	15.04	%	9.62	%
Glens Falls National Bank & Trust Co.	13.82	%	13.82	%	14.84	%	9.26	%
Saratoga National Bank & Trust Co.	12.50	%	12.50	%	13.47	%	9.31	%
Current Regulatory Minimum (2018)	6.375%(1)		7.875%(1)		9.875%(1)		4.000	%
FDICIA's Prompt Corrective Action - "Well-Capitalized" Standard (2018)	6.500	%	8.000	%	10.000	%	5.000	%
Final Regulatory Minimum (1/1/2019)	7.000%(2)		8.500%(2)		10.500%(2)		4.000	%
(1) Including currently phased-in 1.25% capital conservation buffer
(2) Including the fully phased-in 2.50 % capital conservation buffer

At March 31, 2018, our holding company and both banks exceeded the minimum regulatory capital ratios established under the current capital rules and each also qualified as "well-capitalized", the highest category in the new capital classification scheme established by federal bank regulatory agencies under the "prompt corrective action" standards, as described above.

Capital Components; Stock Repurchases; Dividends

Stockholders' Equity:Stockholders' equity was $252.7 million at March 31, 2018, an increase of $3.1 million, or 1.3%, from December 31, 2017.  This increase was the result of net income for the period of $8.5 million, and increases in book equity from our various stock-based compensation and dividend reinvestment plans of $1.2 million. These equity enhancing developments during the quarter were offset by a decrease in other comprehensive income of $2.4 million, cash dividends of $3.5 million, and purchases of our own common stock of $619 thousand under our Board-approved stock repurchase program described below.

Trust Preferred Securities: In each of 2003 and 2004, we issued $10 million of trust preferred securities (TRUPs) in a private placement. Under the Federal Reserve Board's regulatory capital rules then in effect, TRUPs proceeds typically qualified as Tier 1 capital for bank holding companies such as ours, but only in amounts up to 25% of Tier 1 capital, net of goodwill less any associated deferred tax liability. Under the Dodd-Frank Act, any trust preferred securities that Arrow might issue on or after the grandfathering date set forth in Dodd-Frank (May 19, 2010) would no longer qualify as Tier 1 capital under bank regulatory capital guidelines, whereas TRUPs outstanding prior to the grandfathering cutoff date set forth in Dodd-Frank (May 19, 2010) would continue to qualify as Tier 1 capital until maturity or redemption, subject to limitations. Thus, our outstanding TRUPs continue to qualify as Tier 1 regulatory capital, subject to such limitations.

Stock Repurchase Program: In October 2017, the Board of Directors approved a $5.0 million stock repurchase program, effective January 1, 2018 (the 2018 stock repurchase program), under which management is authorized, in its discretion, to repurchase from time-to-time during 2018, in the open market or in privately negotiated transactions, up to $5 million of Arrow common stock, to the extent management believes purchase of the Company's stock is an attractive use of available capital and in the best interests of stockholders. The 2018 stock repurchase program replaced a similar repurchase program which was in effect during 2017 (the 2017 stock repurchase program), which also authorized the repurchase of up to $5.0 million of Arrow common stock. As of March 31, 2018 approximately $389 thousand had been used under the 2018 stock repurchase program to repurchase Arrow shares. This total does not include repurchases of Arrow's Common Stock other than through its repurchase program, i.e., repurchases of Arrow shares on the market utilizing funds accumulated under Arrow's Dividend Reinvestment Plan and the surrender or deemed surrender of Arrow stock to the Company in connection with employees' stock-for-stock exercises of compensatory stock options to buy Arrow stock.

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Dividends:Our common stock is traded on NasdaqGS^® under the symbol AROW. The high and low stock prices for the past five quarters listed below represent actual sales transactions, as reported by NASDAQ. On April 25, 2018, our Board of Directors declared a 2018 second quarter cash dividend of $0.250 payable on June 15, 2018. Per share amounts in the following table have been restated for our September 28, 20173% stock dividend.

					Cash
	Market Price				Dividends
	Low		High		Declared
2017
First Quarter	$	31.80	$	39.76	$	0.243
Second Quarter	30.15		34.95		0.243
Third Quarter	29.81		35.00		0.243
Fourth Quarter	33.50		38.60		0.250
2018
First Quarter	$	30.81	$	35.57	$	0.250
Second Quarter	TBD		TBD		0.250

	Quarter Ended March 31,
	2018			2017
Cash Dividends Per Share	$	0.250		$	0.243
Diluted Earnings Per Share	0.61			0.47
Dividend Payout Ratio	40.98		%	51.70		%
Total Equity (in thousands)	252,734			$	236,111
Shares Issued and Outstanding (in thousands)	13,950			13,886
Book Value Per Share	$	18.12		$	17.00
Intangible Assets (in thousands)	24,045			24,448
Tangible Book Value Per Share	$	16.39		$	15.24

LIQUIDITY

The objective of effective liquidity management is to ensure that we have the ability to raise cash when we need it at a reasonable cost.  We must be capable of meeting expected and unexpected obligations to our customers at any time.  Given the uncertain nature of customer demands as well as the need to maximize earnings, we must have available reasonably priced sources of funds, both on- and off-balance sheet, that can be accessed quickly in time of need.

Our primary sources of available liquidity are overnight investments in federal funds sold, interest bearing bank balances at the Federal Reserve Bank, and cash flow from investment securities and loans.  Certain investment securities are selected at purchase as available-for-sale based on their marketability and collateral value, as well as their yield and maturity.  Our securities available-for-sale portfolio was $305.6 million at March 31, 2018, an increase of $5.4 million, from the year-end 2017 level. Due to the potential for volatility in market values, we are not always able to assume that securities may be sold on short notice at their carrying value, even to provide needed liquidity.

In addition to liquidity from short-term investments, investment securities and loans, we have supplemented available operating liquidity with additional off-balance sheet sources such as federal funds lines of credit with correspondent banks and credit lines with the FHLBNY. Our federal funds line of credit is with one correspondent bank totaling $15 million; we did not draw on this line during the three months ended March 31, 2018.

To support our borrowing relationship with the FHLBNY, we have pledged collateral, including residential mortgage and home equity loans. At March 31, 2018, we had outstanding collateral obligations with the FHLBNY of $260 million; on such date, our unused borrowing capacity at the FHLBNY was approximately $263 million. In addition we have identified brokered deposits as an available source of funding accessible in a relatively short time period. At March 31, 2018, the balance of floating rate brokered deposits totaled $45 million. Also, our two bank subsidiaries have each established a borrowing facility with the Federal Reserve Bank of New York, pledging certain consumer loans as collateral for potential "discount window" advances, which we maintain for contingency liquidity purposes. At March 31, 2018, the amount available under this facility was approximately $436 million, and there were no advances then outstanding.

We measure and monitor our basic liquidity as a ratio of liquid assets to total short-term liabilities, both with and without the availability of borrowing arrangements. Based on the level of overnight funds investments, available liquidity from our investment securities portfolio, cash flows from our loan portfolio, our stable core deposit base and our significant borrowing capacity, we believe that our liquidity is sufficient to meet all funding needs that may arise in connection with any reasonably likely events or occurrences. At March 31, 2018, our basic liquidity ratio, including our FHLBNY collateralized borrowing capacity, was 11.2% of total assets, or $226 million in excess of our internally-set minimum target ratio of 4%.

Because of our consistently favorable credit quality and strong balance sheet, we did not experience any significant liquidity constraints in the three-month period ended March 31, 2018 and did not experience any such constraints in any prior year, back to and including the financial crisis years. We have not at any time during such period been forced to pay above-market rates to obtain retail deposits or other funds from any source.

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RESULTS OF OPERATIONS

Three Months Ended March 31, 2018 Compared With

Three Months Ended March 31, 2017

Summary of Earnings Performance

(Dollars in Thousands, Except Per Share Amounts)

	Quarter Ended
	3/31/2018			3/31/2017			Change			% Change
Net Income	$	8,531		$	6,631		$	1,900		28.7	%
Diluted Earnings Per Share	0.61			0.47			0.14			29.8	%
Return on Average Assets	1.25		%	1.02		%	0.23		%	22.5	%
Return on Average Equity	13.78		%	11.43		%	2.35		%	20.6	%

We reported net income of $8.5 million and diluted earnings per share (EPS) of $.61 for the first quarter of 2018, compared to net income of $6.6 million and diluted EPS of $.47 for the first quarter of 2017. Return on average assets (ROA) for the first quarter of 2018 was 1.25%, up 23 basis points from 1.02% in the first quarter of 2017. In addition, our return on average equity (ROE) increased to 13.78%

for the first quarter of 2018, up 235 basis points from 11.43% in the first quarter of 2017.

The following narrative discusses the quarter-to-quarter changes in net interest income, noninterest income, noninterest expense and income taxes.

Net Interest Income

Summary of Net Interest Income

(Taxable Equivalent Basis, Dollars in Thousands)

	Quarter Ended
	3/31/2018			3/31/2017			Change			% Change
Interest and Dividend Income	$	22,909		$	20,945		$	1,964		9.4	%
Interest Expense	2,016			1,536			480			31.3	%
Net Interest Income	20,893			19,409			1,484			7.6	%
Tax-Equivalent Adjustment	491			948			(457		)	(48.2	)%
Average Earning Assets (1)	2,641,660			2,500,293			141,367			5.7	%
Average Interest-Bearing Liabilities	2,050,661			1,977,628			73,033			3.7	%
Yield on Earning Assets (1)	3.52		%	3.40		%	0.12		%	3.5	%
Cost of Interest-Bearing Liabilities	0.40			0.31			0.09		%	29.0	%
Net Interest Spread	3.12			3.09			0.03		%	1.0	%
Net Interest Margin	3.21			3.15			0.06		%	1.9	%

⁽¹⁾ Includes Nonaccrual Loans

Net interest income for the just completed quarter, on a taxable equivalent basis, increased by $1.5 million, or 7.6%, from the first quarter of 2017, due, in part, to an increase in our average earning assets of 5.7%, as compared to the 3.7% increase in our average interest-bearing liabilities. In addition, our net interest margin increased 6 basis points in the first quarter of 2018 to 3.21%, from 3.15% during the first quarter of 2017. Due to our strong loan growth, the composition of our average earning assets during the 2018 period includes more relatively higher yielding loans and less relatively lower yielding investment securities due to the strategy of not reinvesting a portion of the maturing securities. As a result, the yield on average earning assets increased 12 basis points in the current year period. Meanwhile, our growth in non-interest bearing demand deposits during the 2018 period has resulted in slowing the increase in our cost of interest-bearing liabilities to 9 basis points. We define net interest margin as our net interest income on a tax-equivalent basis divided by average earning assets, annualized. Our net interest margin, as well as our tax-equivalent net income, from which the margin is derived, are non-GAAP financial measures. (See the discussion under “Use of Non-GAAP Financial Measures,” on page 37, and the tabular information and notes on pages 38 and 39, regarding our reasons for using these and other non-GAAP measures and the reconciliation thereof to comparable GAAP measures.) Further detailed information is presented above under the section entitled “Average Consolidated Balance Sheets and Net Interest Income Analysis.” The impact of recent interest rate changes on our deposit and loan portfolios are discussed above in this Report under the sections entitled “Deposit Trends” and “Loan Trends.”

As discussed previously under the heading "Asset Quality" beginning on page 49, the provision for loan losses for the first quarter of 2018 was $746 thousand, compared to a provision of $358 thousand for the 2017 quarter.

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Noninterest Income

Summary of Noninterest Income

(Dollars in Thousands)

	Quarter Ended
	3/31/2018		3/31/2017		Change			% Change
Income From Fiduciary Activities	$	2,197	$	2,018	$	179		8.9	%
Fees for Other Services to Customers	2,380		2,256		124			5.5	%
Insurance Commissions	1,903		2,198		(295		)	(13.4	)%
Net Gain on Securities Transactions	—		—		—			—	%
Net Unrealized Gain on Equity Securities	18		—		18			100.0	%
Net Gain on the Sale of Loans	38		45		(7		)	(15.6	)%
Other Operating Income	353		178		175			98.3	%
Total Noninterest Income	$	6,889	$	6,695	$	194		2.9	%

Total noninterest income in the current quarter was $6.9 million, up $194 thousand from total noninterest income for the first quarter of 2017. Fees for other services to customers, the largest segment of our noninterest income, increased to $2.4 million for the first quarter of 2018, as compared to $2.3 million for the first quarter of 2017. In addition to service charge income on deposits, this category also includes debit card interchange income, revenues related to the sale of mutual funds to our customers by third party providers, and servicing income on sold loans. Debit card usage by our customers continues to grow, which has had (and if such growth persists, will continue to have) a positive impact on our debit card fee income.

Income from fiduciary activities for the first quarter of 2018increased by $179 thousand, or 8.9% over the first quarter of 2017. This growth in income from fiduciary activities can be attributed to an increase in assets under trust administration and investment management which was primarily attributable to market performance. Insurance commissions decreased to $1.9 million for the first quarter of 2018 from the $2.2 million level for the first quarter of 2017.

The $18 thousand increase in net unrealized gains on equity securities between the periods was due to the change in accounting for these unrealized gains on equity securities as compared to the first quarter of 2017 pursuant to Accounting Standards Update 2016-01.

Net gain on the sale of loans in the first quarter of 2018decreased by $7 thousand from the first quarter of 2017. This decrease was a result of both a decrease in loan sale volume and a slight reduction in the premium achieved by those sales. See page 45 for our discussion of loan sales.

Noninterest Expense

Summary of Noninterest Expense

(Dollars in Thousands)

	Quarter Ended
	3/31/2018			3/31/2017			Change			% Change
Salaries and Employee Benefits	$	9,369		$	9,008		$	361		4.0	%
Occupancy Expense of Premises, Net	1,340			1,347			(7		)	(0.5	)%
Furniture and Equipment Expense	1,201			1,197			4			0.3	%
FDIC and FICO Assessments	217			226			(9		)	(4.0	)%
Amortization	67			71			(4		)	(5.6	)%
Other Operating Expense	3,761			3,626			135			3.7	%
Total Noninterest Expense	$	15,955		$	15,475		$	480		3.1	%
Efficiency Ratio	57.23		%	59.01		%	(1.78		)%	(3.0	)%

Noninterest expense for the first quarter of 2018 was $16.0 million, an increase of $480 thousand, or 3.1%, from the expense for the first quarter of 2017. However, the rate of increase in expense on a year-over-year basis was less than the rate of growth in average total loans or in average total assets between the same two periods. This favorable comparison of rates of increase was reflected in our efficiency ratio, which was 57.23% for the first quarter of 2018, down 178 basis points from our ratio for the comparable 2017 quarter. The efficiency ratio (a ratio where lower is better), is a commonly used non-GAAP financial measure in the banking industry that purports to reflect an institution's operating efficiency. We calculate our efficiency ratio as the ratio of noninterest expense (excluding, under our definition, intangible asset amortization) to (i) net interest income (on a tax-equivalent basis) plus (ii) noninterest income (excluding net securities gains or losses). See the discussion on this non-GAAP measure on page 37 of this Report under the heading “Use of Non-GAAP Financial Measures” and the related tabular information and notes on pages 38 and 39 of this Report. The efficiency ratio included by the Federal Reserve Board in its "Peer Holding Company Performance Reports" excludes net securities gains or losses from the denominator (as does our calculation), but unlike our ratio does not exclude intangible asset amortization from the numerator. Our efficiency ratios in recent periods have generally compared favorably to the ratios of our peer group as disclosed in the Fed's Performance Reports (see page 37 for a discussion of our peer group). For the three-month period ended December 31, 2017 (the most recent reporting period for which peer group information is available), the peer group's efficiency ratio was 65.60%, and our ratio was 56.05% (not adjusted for the definitional difference).

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Salaries and employee benefits expense increased by 2.4% in the first quarter of 2018 compared to the first quarter of 2017 due to normal salary increases and increases in pension expense. Other operating expense increased by 3.7%, primarily due to an increase in the cost of providing our customers with a wide and more complex variety of electronic banking products and services.

Income Taxes

Summary of Income Taxes

(Dollars in Thousands)

	Quarter Ended
	3/31/2018			3/31/2017			Change			% Change
Provision for Income Taxes	$	2,058		$	2,692		$	(634	)	(23.6	)%
Effective Tax Rate	19.4		%	28.9		%	(9.5		)	(32.9	)

The effective tax rate for the 2018 quarter reflects the impact of the Tax Act which decreased the federal statutory income tax rate from 35% in 2017 to 21% in 2018.

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Item 3.

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

In addition to credit risk in our loan portfolio and liquidity risk, discussed earlier, our business activities also generate market risk.  Market risk is the possibility that changes in future market rates (interest rates) or prices (market value of financial instruments) will make our position (i.e., our assets and operations) less valuable.  Our primary market risk is interest rate volatility. The ongoing monitoring and management of interest rate risk is an important component of our asset/liability management process, which is governed by policies that are reviewed and approved annually by the Board of Directors.  The Board of Directors delegates responsibility for carrying out asset/liability oversight and control to management's Asset/Liability Committee ("ALCO").  In this capacity ALCO develops guidelines and strategies impacting our asset/liability profile based upon estimated market risk sensitivity, policy limits and overall market interest rate levels and trends.  

Changes in market interest rates, whether increases or decreases, can trigger repricing and changes in the pace of payments for both assets and liabilities (prepayment risk), which individually or in combination may affect net interest income, net interest margin, and ultimately net income, either positively or negatively. ALCO utilizes the results of a detailed and dynamic simulation model to quantify this interest rate risk by projecting net interest income in various interest rate scenarios.  

Our standard simulation model applies a parallel shift in interest rates, ramped over a 12-month period, to capture the impact of changing interest rates on net interest income.  The results are compared to ALCO policy limits which specify a maximum tolerance level for net interest income exposure over a one- year horizon, assuming no balance sheet growth and a 200 basis point upward and a 100 basis point downward shift in interest rates. Additional tools to monitor potential longer-term interest rate risk, including periodic stress testing involving hypothetical sudden and significant interest rate spikes are also evaluated.

As of March 31, 2018, a 200 basis point increase in interest rates produces a 1.87% decrease in simulated net interest income, and a 100 basis point decrease in interest rates produces a 0.03% decrease in net interest income in the first year modeled.  These results are well within our ALCO policy limits of 10%.  Historically, there has existed an inverse relationship between changes in prevailing rates and our net interest income, suggesting that liabilities and sources of funds generally reprice more quickly than our earning assets. (near-term liability sensitivity). However, when net interest income is simulated over a longer time horizon, this exposure is limited, and actually reverses, as our asset yields continue to reprice while our cost of funding reaches assumed ceilings or floors (long-term asset sensitivity). As a result, in year two of simulated results a 200 basis point increase in interest rates produces a 2.46% increase in simulated net interest income, and a 100 basis point decrease in interest rates produces a 3.49% decrease in net interest income. These results are also well within our ALCO policy limits for year two of 15%.

The hypothetical estimates underlying the sensitivity analysis are based upon numerous assumptions including: the nature and timing of changes in interest rates including yield curve shape, prepayments on loans and securities, deposit decay rates, pricing decisions on loans and deposits, reinvestment/replacement of asset and liability cash flows, and others.  While assumptions are developed based upon current economic and local market conditions, we cannot make any assurance as to the predictive nature of these assumptions including how customer preferences or competitor influences might change.

Also, as market conditions vary from those assumed in the sensitivity analysis, actual results will differ due to: prepayment/refinancing levels likely deviating from those assumed, the varying impact of interest rate changes on caps or floors on adjustable rate assets, the potential effect of changing debt service levels on customers with adjustable rate loans, depositor early withdrawals and product preference changes, unanticipated shifts in the yield curve and other internal/external variables.  Furthermore, the sensitivity analysis does not reflect actions that ALCO might take in responding to or anticipating changes in interest rates.

Item 4.

CONTROLS AND PROCEDURES

Senior management, including the Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the design and operation of Arrow's disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934, as amended) as of March 31, 2018. Based upon that evaluation, senior management, including the Chief Executive Officer and Chief Financial Officer, concluded that our disclosure controls and procedures were effective. Further, there were no changes made in our internal control over financial reporting that occurred during the most recent fiscal quarter that had materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

# 58

PART II - OTHER INFORMATION

Item 1.

Legal Proceedings

The Company, including its subsidiary banks, are not currently the subject of any material pending legal proceedings, other than ordinary routine litigation occurring in the normal course of their business. On an ongoing basis, we are often the subject of, or a party to, various legal claims by other parties against us, by us against other parties, or involving us, which arise in the normal course of business. The various pending legal claims against us will not, in the opinion of management based upon consultation with counsel, result in any material liability.

Item 1.A.

Risk Factors

We believe that the Risk Factors identified in our Annual Report on Form 10-K for the year ended December 31, 2017, continue to represent the most significant risks to our future results of operations and financial conditions, without modification or amendment. Please refer to such Risk Factors as listed in Part I, Item 1A, of our Annual Report on Form 10-K for the fiscal year ended December 31, 2017.

Item 2.

Unregistered Sales of Equity Securities and Use of Proceeds

Unregistered Sales of Equity Securities

There were no unregistered sales of the Company's equity securities by or on behalf of the Company during the just-completed quarter.

Issuer Purchases of Equity Securities

The following table presents information about purchases by Arrow of its common stock during the quarter ended March 31, 2018:

First Quarter 2018 Calendar Month	(A) Total Number of Shares Purchased 1	(B) Average Price Paid Per Share 1		(C) Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs 2	(D) Maximum Approximate Dollar Value of Shares that May Yet be Purchased Under the Plans or Programs 2
January	1,772	$	34.59	—	$	5,000,000
February	17,927	32.57		12,000	4,610,800
March	19,335	34.45		—	4,610,800
Total	39,034	33.60		12,000

¹The total number of shares purchased by the Company and the average price paid per share listed in columns (A) and (B) consist of (i) any shares purchased in such periods in open market or private transactions under the Arrow Financial Corporation Automatic Dividend Reinvestment Plan (the "DRIP") by the administrator of the DRIP, (ii) shares surrendered or deemed surrendered to Arrow in such periods by holders of options to acquire Arrow common stock received by them under Arrow's long-term incentive plans ("LTIPs") in connection with their stock-for-stock exercise of such options, and shares repurchased by Arrow pursuant to its 2018 stock repurchase program. In the months indicated, the listed number of shares purchased included the following number of shares purchased by Arrow through such methods: January - DRIP purchases (1,772 shares); February - DRIP purchases (4,581 shares), stock-for-stock exercises (1,346 shares), and repurchased under the 2018 stock repurchase program (12,000 shares); and March - DRIP purchases (13,966 shares), and stock-for-stock exercises (5,369 shares).

²Includes only those shares acquired by Arrow pursuant to its 2018 stock repurchase program.  Our only publicly-announced stock repurchase program in effect for the first quarter of 2018 was the program approved by the Board of Directors and announced in October 2017, under which the Board authorized management, in its discretion, to repurchase from time to time during 2018, in the open market or in privately negotiated transactions, up to $5 million of Arrow common stock subject to certain exceptions (the "2018 stock repurchase program"). Arrow repurchased 12,000 of its shares in the first quarter of 2018 under the 2018 stock repurchase program.

Item 3.

Defaults Upon Senior Securities - None

Item 4.

Mine Safety Disclosures - None

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Item 5.

Other Information - None

Item 6.

Exhibits

Exhibit Number	Exhibit
10.1	Amendment #9 to Arrow Select Executive Retirement Plan - Amendment to Add New Schedule C SERP Benefit for Thomas Murphy *
15	Awareness Letter
31.1	Certification of Chief Executive Officer under SEC Rule 13a-14(a)/15d-14(a)
31.2	Certification of Chief Financial Officer under SEC Rule 13a-14(a)/15d-14(a)
32	Certification of Chief Executive Officer under 18 U.S.C. Section 1350 and Certification of Chief Financial Officer under 18 U.S.C. Section 1350
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	XBRL Taxonomy Extension Labels Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document
* Management contracts or compensation plans required to be filed as an exhibit.

# 60

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.

ARROW FINANCIAL CORPORATION

Registrant

May 9, 2018	/s/Thomas J. Murphy
Date	Thomas J. Murphy, President and
	Chief Executive Officer
May 9, 2018	/s/Edward J. Campanella
Date	Edward J. Campanella, Senior Vice President,
	Treasurer and Chief Financial Officer
	(Principal Financial Officer and
	Principal Accounting Officer)

# 61

EX-10.1

Amendment #9 to

ARROW FINANCIAL CORPORATION

SELECT EXECUTIVE RETIREMENT PLAN

As Amended and Restated Effective as of January 1, 2005

For Benefits Accrued or Vested After December 31, 2004

Amendment to Add New Schedule C SERP Benefit for Thomas Murphy

Pursuant to Section 5.01 of the Arrow Financial Corporation Select Executive Retirement Plan as amended and restated effective January 1, 2005 for benefits accrued or vested after December 31, 2004, which provides for amendment thereof, the Plan is hereby amended effective as of January 1, 2018 as follows:

1. All instances in the Plan which reference Schedules A and B collectively shall be amended to collectively reference Schedules A, B and C.

2. A new Schedule C Select Executive Retirement Plan (SERP) benefit for current President/CEO Thomas Murphy shall be added to the Plan as provided for in the following attachment.

The Employer consents to the foregoing amendment, and except as amended herein, the Plan is hereby ratified and confirmed.

ARROW FINANCIAL CORPORATION

By: /s/ Debra A. Meier

EMPLOYER

Date: January 31, 2018    

SCHEDULE C

Arrow Financial Corporation

Select Executive Retirement Plan

A supplemental retirement benefit shall be provided to Thomas Murphy (“Participant”) under this Schedule C as follows:

1. The benefit shall equal 40% of the Participant’s final average Compensation offset by the value of other Company provided benefits. For this purpose:

a. Compensation shall have the same meaning as in the Arrow Financial Corporation Employees’ Pension Plan and Trust (hereinafter referred to as the “Pension Plan”) but without respect on any limits imposed by Internal Revenue Code Section 401(a)(17).

b. The average of such Compensation shall be made over the 60 consecutive calendar months which produce the highest average during the last 120 consecutive calendar months of the Participant’s employment.

c. The benefit shall be expressed in the form of a single life annuity payable at a normal retirement age of 65.

d. Other Company provided benefits shall include:

i. Social Security benefits payable at age 65, regardless of the actual timing of commencement for such benefits. If Social Security benefits commence prior to age 65, estimated benefits shall be projected to age 65 assuming the Participant continued employment there through.

ii. The Account Balance Accrued Benefit payable in the form of a single life annuity at Normal Retirement (age 65) from the Pension Plan.

iii. The age 65 single life annuity value of any benefits provided to the Participant under Schedule A of this Plan.

iv. The age 65 single life annuity value of all other account balances attributable to Company contributions on behalf of the Participant to the Arrow Financial Corporation Employee Stock Ownership Plan and Trust, the Arrow Financial Corporation Profit Sharing/401(k) Plan, and any Schedule B benefits provided under this Plan.

v. The actuarial assumptions used to convert a (lump sum) account balance to a single life annuity form of benefit in the Pension Plan shall be used for converting account balances to annuities under this Schedule.

vi. For determining benefits prior to age 65:

1. Any benefit for which the normal form is an annuity, the accrued benefit at the date of determination shall be the accrued benefit deferred to age 65 as calculated in each respective plan using the Participant’s actual Compensation and service through such date of determination.

2. Any benefit for which the normal form is an account balance, the account balance as of the date of determination shall be converted to an actuarially equivalent life annuity deferred to age 65.

vii. The actuarial assumptions used to convert the single life annuity form of benefit to another optional annuity form in the Pension Plan shall be used for similar purposes under this Schedule.

viii. The benefit shall be payable upon actual retirement, except that actual payment shall commence 6 months after the Participant’s separation from service with the Company (or any employer within the control group) in compliance with Code Section 409A, with the first such payment equal to the value of 7 monthly payments with interest at the rate of 7.5%.

2. If benefits commence prior to age 65 they shall be reduced for early commencement in the same manner as early retirement benefits in the Pension Plan.

3. If benefits commence after age 65 as result of continued employment, final average Compensation, and other Company provided benefits shall be determined as of the Participant’s actual date of retirement.

4. Benefits may be paid in any optional annuity form of payment available to the Participant under the Pension Plan and valued in accordance with the actuarial assumptions therein. Except as provided for below, a lump sum benefit option shall not be permitted. The Participant need not elect the same optional form of payment as elected for Pension Plan benefits.

5. Death benefits shall be provided as follows:

a. In the event of death prior to the commencement of benefits, the surviving spouse, if any, shall receive a survivor annuity payable effective as of the first day of the month following the date of death in an amount that is actuarially equivalent, determined using the actuarial assumptions in the Pension Plan, to the single life annuity amount the Participant would have been entitled to receive if benefits commenced as of such date. If the Participant’s spouse predeceases him, the preretirement death benefit shall be paid to his designated beneficiary, or to his estate if there is no designated

beneficiary, in the form of an actuarially equivalent lump determined using the actuarial assumptions in the Pension Plan for such payments.

b. In the event of death subsequent to the commencement of benefits, death benefits, if any, shall be paid in accordance with the terms of the elected form of payment and any applicable beneficiary designations.

EX-15

Exhibit 15

Report of Independent Registered Public Accounting Firm

May 9, 2018

The Stockholders and Board of Directors

Arrow Financial Corporation

Glens Falls, New York

Re: Registration Statement Forms S-3 (No. 333-197927, 333-210110, and 333-219822) and Forms S-8 (No. 333-62719, No. 333-151550, No. 333-188479, and No. 333-188480)

With respect to the subject registration statement, we acknowledge our awareness of the use therein of our report dated May 9, 2018 related to our review of interim financial information.

Pursuant to Rule 436 under the Securities Act of 1933 (the Act), such report is not considered part of a registration statement prepared or certified by an independent registered public accounting firm, or a report prepared or certified by an independent registered public accounting firm within the meaning of Sections 7 and 11 of the Act.

/s/ KPMG LLP

Albany, New York

EX-31.1

Certification of the Chief Executive Officer Pursuant to

Securities Exchange Act Rules 13a-14 and 15d-14

As Adopted Pursuant to

Section 302 of the Sarbanes-Oxley Act of 2002

I, Thomas J. Murphy, certify that:

1.    I have reviewed the quarterly report on Form 10-Q of Arrow Financial Corporation;

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 officers 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 the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting.

5. The registrant's other certifying officers 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 the 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.

Date:    May 9, 2018

By:    /s/Thomas J. Murphy

Thomas J. Murphy

Chief Executive Officer

EX-31.2

Certification of the Chief Financial Officer Pursuant to

Securities Exchange Act Rules 13a-14 and 15d-14

As Adopted Pursuant to

Section 302 of the Sarbanes-Oxley Act of 2002

I, Edward J. Campanella, certify that:

1.I have reviewed the quarterly report on Form 10-Q of Arrow Financial Corporation;

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 officers 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 the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting.

5. The registrant's other certifying officers 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 the 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.

Date:May 9, 2018

By:    /s/Edward J. Campanella

Edward J. Campanella

Chief Financial Officer

EX-32

Certification of Chief Executive Officer and Chief Financial Officer

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 Arrow Financial Corporation (the "Company") on Form 10-Q for the period ended March 31, 2018, filed with the Securities and Exchange Commission (the "Report"), we, Thomas J. Murphy, Chief Executive Officer of the Company, and Edward J. Campanella, Chief Financial Officer of the Company, hereby certify, in accordance with 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of our knowledge:

(a)The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

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

Dated: May 9, 2018

/s/ Thomas J. Murphy

Thomas J. Murphy

Chief Executive Officer

/s/ Edward J. Campanella

Edward J. Campanella

Chief Financial Officer

A signed original of this written statement required by Section 906 has been provided to Arrow Financial Corporation and will be retained by Arrow Financial Corporation and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Document and Entity Information Document - shares	3 Months Ended
	Mar. 31, 2018	Apr. 30, 2018
Entity Information [Line Items]
Entity Registrant Name	Arrow Financial Corporation
Entity Central Index Key	0000717538
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		13,969,371
Entity Well-known Seasoned Filer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
ASSETS
Cash and Due From Banks	$ 29,525	$ 42,562	$ 50,158
Interest-Bearing Deposits at Banks	70,747	30,276	14,645
Investment Securities:
Available-for-Sale	305,589	300,200	347,159
Held-to-Maturity (Approximate Fair Value of $324,937 at March 31, 2018; $335,901 at December 31, 2017; and $335,105 at March 31, 2017)	330,124	335,907	335,211
Equity Securities	1,579	0	0
Other Investments	4,780	9,949	6,826
Loans	1,993,037	1,950,770	1,810,805
Allowance for Loan Losses	(19,057)	(18,586)	(17,216)
Net Loans	1,973,980	1,932,184	1,793,589
Premises and Equipment, Net	27,815	27,619	26,585
Goodwill	21,873	21,873	21,873
Other Intangible Assets, Net	2,172	2,289	2,575
Other Assets	58,503	57,606	57,765
Total Assets	2,826,687	2,760,465	2,656,386
LIABILITIES
Noninterest-Bearing Deposits	452,347	441,945	402,506
Interest-Bearing Checking Accounts	944,161	907,315	959,170
Savings Deposits	762,220	694,573	696,625
Time Deposits over $250,000	85,403	38,147	30,993
Other Time Deposits	167,142	163,136	167,242
Total Deposits	2,411,273	2,245,116	2,256,536
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	74,957	64,966	32,035
Federal Home Loan Bank Overnight Advances	0	105,000	32,000
Federal Home Loan Bank Term Advances	45,000	55,000	55,000
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts	20,000	20,000	20,000
Other Liabilities	22,723	20,780	24,704
Total Liabilities	2,573,953	2,510,862	2,420,275
STOCKHOLDERS’ EQUITY
Preferred Stock, $5 Par Value; 1,000,000 Shares Authorized	0	0	0
Common Stock, $1 Par Value; 20,000,000 Shares Authorized (18,481,301 Shares Issued and Outstanding at March 31, 2018; 18,481,301 at December 31, 2017 and 17,943,201 at March 31, 2017)	18,481	18,481	17,943
Additional Paid-in Capital	290,980	290,219	271,517
Retained Earnings	34,093	28,818	31,901
Unallocated ESOP Shares (9,643 Shares at March 31, 2018; 9,643 Shares at December 31, 2017 and 19,466 Shares at March 31, 2017)	(200)	(200)	(400)
Accumulated Other Comprehensive Loss	(11,285)	(8,514)	(6,680)
Treasury Stock, at Cost (4,516,444 Shares at March 31, 2018; 4,541,524 Shares at December 31, 2017 and 4,442,292 Shares at March 31, 2017)	(79,335)	(79,201)	(78,170)
Total Stockholders’ Equity	252,734	249,603	236,111
Total Liabilities and Stockholders’ Equity	$ 2,826,687	$ 2,760,465	$ 2,656,386

XML

Consolidated Balance Sheet Parenthetical - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Statement of Financial Position [Abstract]
Held-to-Maturity Securities, at Fair Value	$ 324,938	$ 335,901	$ 335,105
Preferred Stock, par value, in dollars per share	$ 5	$ 5	$ 5
Preferred Stock, shares authorized	1,000,000	1,000,000	1,000,000
Common Stock, par value, in dollars per share	$ 1	$ 1	$ 1
Common Stock, shares authorized	20,000,000	20,000,000	20,000,000
Common Stock, shares issued	18,481,301	18,481,301	17,943,201
Unallocated ESOP Shares ,in shares	9,643	9,643	19,466
Treasury Stock, in shares	4,516,444	4,541,524	4,442,292

XML

Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2018		Mar. 31, 2017
INTEREST AND DIVIDEND INCOME
Interest and Fees on Loans		$ 18,858		$ 16,402
Interest on Deposits at Banks		134		60
Interest and Dividends on Investment Securities:
Fully Taxable		1,893		1,990
Exempt from Federal Taxes		1,533		1,545
Total Interest and Dividend Income		22,418		19,997
INTEREST EXPENSE
Interest-Bearing Checking Accounts		387		331
Savings Deposits		522		291
Time Deposits over $250,000		204		55
Other Time Deposits		259		228
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase		16		7
Federal Home Loan Bank Advances		414		445
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts		214		179
Total Interest Expense		2,016		1,536
NET INTEREST INCOME		20,402		18,461
Provision for Loan Losses		746		358
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES		19,656		18,103
NONINTEREST INCOME
Income From Fiduciary Activities		2,197		2,018
Fees for Other Services to Customers		2,380		2,256
Insurance Commissions		1,903		2,198
Net Unrealized Gain on Equity Securities		18		0
Net Gain on Sales of Loans		38		45
Other Operating Income		353		178
Total Noninterest Income		6,889		6,695
NONINTEREST EXPENSE
Salaries and Employee Benefits		9,369		9,147
Occupancy Expenses, Net		2,541		2,544
FDIC Assessments		217		226
Other Operating Expense		3,829		3,558
Total Noninterest Expense		15,956		15,475
INCOME BEFORE PROVISION FOR INCOME TAXES		10,589		9,323
Provision for Income Taxes		2,058		2,692
NET INCOME		$ 8,531		$ 6,631
Average Shares Outstanding:
Basic, in shares		13,936	[1]	13,889	[2]
Diluted, in shares	[2]	14,016	[1]	14,001
Per Common Share:
Basic Earnings, in dollars per share		$ 0.61		$ 0.48
Diluted Earnings, in dollars per share		$ 0.61		$ 0.47

[1] Cash dividends paid per share have been adjusted for the September 28, 2017 3% stock dividend.

[2] Share and Per Share Amounts have been restated for the September 28, 2017 3% stock dividend.

XML

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net Income	$ 8,531	$ 6,631
Other Comprehensive Income, Net of Tax:
Net Unrealized Securities Holding Gains (Losses) Arising During the Period	(2,485)	47
Amortization of Net Retirement Plan Actuarial Loss	46	109
Accretion of Net Retirement Plan Prior Service Credit	(1)	(2)
Other Comprehensive Income (Loss)	(2,440)	154
Comprehensive Income	$ 6,091	$ 6,785

XML

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands		Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Unallocated ESOP Shares	Accumulated Other Comprehensive Income (Loss)		Treasury Stock
Stockholders' Equity, Beginning Balance at Dec. 31, 2016		$ 232,852	$ 17,943	$ 270,880	$ 28,644	$ (400)	$ (6,834)		$ (77,381)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		6,631			6,631
Other Comprehensive Income (Loss)		154					154	[1]
Cash Dividends Paid	[2]	(3,374)			(3,374)
Stock Options Exercised, Net		388		187					201
Shares Issued Under the Directors' Stock Plan		22		14					8
Shares Issued Under the Employee Stock Purchase Plan		106		69					37
Shares Issued for Dividend Reinvestment Plans		425		284					141
Stock-Based Compensation Expense		83		83
Purchases of Treasury Stock		(1,176)							(1,176)
Stockholders' Equity, Ending Balance at Mar. 31, 2017		236,111	17,943	271,517	31,901	(400)	(6,680)		(78,170)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Impact of Change in Accounting Policy	[1]						(331)
Impact of Change in Accounting Policy | Accounting Standards Update 2014-09		(102)			(102)
Impact of Change in Accounting Policy | Accounting Standards Update 2016-01					331		(331)
Stockholders' Equity, Beginning Balance at Dec. 31, 2017		249,603	18,481	290,219	28,818	(200)	(8,514)		(79,201)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		8,531			8,531
Other Comprehensive Income (Loss)		(2,440)					(2,440)	[1]
Cash Dividends Paid		(3,485)			(3,485)
Stock Options Exercised, Net		610		307					303
Shares Issued Under the Employee Stock Purchase Plan		116		76					40
Shares Issued for Dividend Reinvestment Plans		431		289					142
Stock-Based Compensation Expense		89		89
Purchases of Treasury Stock		(619)							(619)
Stockholders' Equity, Ending Balance at Mar. 31, 2018		$ 252,734	$ 18,481	$ 290,980	$ 34,093	$ (200)	$ (11,285)		$ (79,335)

[1] All amounts are net of tax. Amounts in parentheses indicate debits.

[2] Cash dividends paid per share have been adjusted for the September 28, 2017 3% stock dividend.

XML

Consolidated Statements of Stockholders' Equity Parenthetical - $ / shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Stockholders' Equity [Abstract]
Cash Dividends Paid, per Share, in dollars per share	$ 0.25	$ 0.243
Exercised, in shares	27,662	16,721
Shares Issued Under Directors Stock Plan, in shares		554
Shares Issued Under Employee Stock Purchase Plan, in shares	3,674	3,049
Shares Issued for Dividend Reinvestment Plans - Shares	12,459	12,447
Purchase of Treasury Stock, in shares	18,715	33,970

XML

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash Flows from Operating Activities:
Net Income	$ 8,531	$ 6,631
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Provision for Loan Losses	746	358
Depreciation and Amortization	1,199	1,524
Net Unrealized Gains on Equity Securities	(18)	0
Loans Originated and Held-for-Sale	(12,326)	(2,186)
Proceeds from the Sale of Loans Held-for-Sale	12,520	1,818
Net Gains on the Sale of Loans	(38)	(45)
Net Losses on the Sale of Premises and Equipment, Other Real Estate Owned and Repossessed Assets	32	7
Contributions to Retirement Benefit Plans	(134)	(165)
Deferred Income Tax Benefit	(220)	(82)
Shares Issued Under the Directors’ Stock Plan	0	22
Stock-Based Compensation Expense	89	83
Tax Benefit from Exercise of Stock Options	112	45
Net Increase in Other Assets	(395)	(886)
Net Increase in Other Liabilities	2,185	2,817
Net Cash Provided By Operating Activities	12,283	9,941
Cash Flows from Investing Activities:
Proceeds from the Maturities and Calls of Securities Available-for-Sale	9,380	11,826
Purchases of Securities Available-for-Sale	(19,979)	(12,324)
Proceeds from the Maturities and Calls of Securities Held-to-Maturity	6,459	10,474
Purchases of Securities Held-to-Maturity	(921)	(556)
Net Increase in Loans	(42,968)	(57,637)
Proceeds from the Sales of Premises and Equipment, Other Real Estate Owned and Repossessed Assets	437	304
Purchase of Premises and Equipment	(627)	(247)
Proceeds from the Sale of a Subsidiary, Net	0	23
Net Decrease in Other Investments	5,169	4,086
Net Cash Used By Investing Activities	(43,050)	(44,051)
Cash Flows from Financing Activities:
Net Increase in Deposits	166,157	139,990
Net Decrease in Short-Term Federal Home Loan Bank Borrowings	(105,000)	(91,000)
Net Increase (Decrease) in Short-Term Borrowings	9,991	(3,801)
Repayments of Federal Home Loan Bank Term Advances	(10,000)	0
Purchase of Treasury Stock	(619)	(1,176)
Stock Options Exercised, Net	610	388
Shares Issued Under the Employee Stock Purchase Plan	116	106
Shares Issued for Dividend Reinvestment Plans	431	425
Cash Dividends Paid	(3,485)	(3,374)
Net Cash Provided By Financing Activities	58,201	41,558
Net Increase in Cash and Cash Equivalents	27,434	7,448
Cash and Cash Equivalents at Beginning of Period	72,838	57,355
Cash and Cash Equivalents at End of Period	100,272	64,803
Supplemental Disclosures to Statements of Cash Flow Information:
Interest on Deposits and Borrowings	1,949	1,539
Income Taxes	390	294
Non-cash Investing and Financing Activity:
Transfer of Loans to Other Real Estate Owned and Repossessed Assets	$ 270	$ 359

XML

Accounting Policies

3 Months Ended

Mar. 31, 2018

Accounting Policies [Abstract]

Accounting Policies

ACCOUNTING POLICIES

In the opinion of the management of Arrow Financial Corporation (Arrow, the Company, we, or us), the accompanying unaudited interim consolidated financial statements contain all of the adjustments necessary to present fairly the financial position as of March 31, 2018, December 31, 2017 and March 31, 2017; the results of operations for the three-month periods ended March 31, 2018 and 2017; the consolidated statements of comprehensive income for the three-month periods ended March 31, 2018 and 2017; the changes in stockholders' equity for the three-month periods ended March 31, 2018 and 2017; and the cash flows for the three-month periods ended March 31, 2018 and 2017. All such adjustments are of a normal recurring nature.

Management’s Use of Estimates -The preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of income and expenses during the reporting period.  Our most significant estimate is the allowance for loan losses. Other estimates include the evaluation of other-than-temporary impairment of investment securities, goodwill impairment, pension and other postretirement liabilities and an analysis of a need for a valuation allowance for deferred tax assets. Actual results could differ from those estimates.

A material estimate that is particularly susceptible to significant change in the near term is the allowance for loan losses.  In connection with the determination of the allowance for loan losses, management obtains appraisals for properties.  The allowance for loan losses is management’s best estimate of probable loan losses incurred as of the balance sheet date.  While management uses available information to recognize losses on loans, future adjustments to the allowance for loan losses may be necessary based on changes in economic conditions.  

The unaudited interim consolidated financial statements should be read in conjunction with the audited annual consolidated financial statements of Arrow for the year ended December 31, 2017, included in Arrow's Annual Report on Form 10-K for the year ended December 31, 2017.

Recently Adopted and Recently Issued Accounting Standards

The following accounting standards have been adopted in the first quarter of 2018:

ASU 2016-01 "Recognition and Measurement of Financial Assets and Financial Liabilities" significantly changed the income statement impact of equity investments. For Arrow, the standard became effective for the first quarter of 2018, and requires that equity investments be measured at fair value, with changes in fair value measured in net income. The cumulative effect of the January 1, 2018 adoption was an increase to retained earnings of $331 thousand with a corresponding decrease to Accumulated Other Comprehensive Loss. For periods prior to January 1, 2018, equity securities were classified as available-for-sale and stated at fair value with unrealized gains and losses reported as a separate component of accumulated other comprehensive income, net of tax. ASU 2016-01 also emphasized the existing requirement to use exit prices to measure fair value for disclosure purposes and clarifies that entities not make use of a practicability exception in determining the fair value of loans. Accordingly, we refined the calculation used to determine the disclosed fair value of our loans as part of adopting this standard. See Note 9. Fair Value of Financial Instruments.

    ASU 2016-15, "Statement of Cash Flows (Topic 230) - Classification of Certain Cash Receipts and Cash Payments" will reduce existing diversity in practice with respect to eight specific cash flow issues. The amendment is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes the interim period. An entity that elects early adoption must adopt all of the amendments in the same period. The amendments in this update should be applied using a retrospective transition method to each period presented. Arrow adopted this ASU in the first quarter of 2018.

ASU 2017-01 "Business Combinations" defines when a set of assets and activities constitutes a business for the purposes of determining whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. Previously, the three elements required to be present in a business are inputs, processes, and outputs. The amendments in this update allow for a business to consist of inputs, processes, and the ability to create output. For Arrow, the standard became effective in the first quarter of 2018. This update had no effect on our accounting for acquisitions and dispositions of businesses.

ASU 2017-07 "Compensation-Retirement Benefits" improves the presentation of net periodic pension cost and net periodic post-retirement benefit cost by requiring that an employer disaggregate the service cost component from the other components of net benefit cost. The amendments also provide explicit guidance on how to present the service cost component and the other components of net benefit cost in the income statement and allow only the service cost component of net benefit cost to be eligible for capitalization. For Arrow, the standard became effective in the first quarter of 2018. In accordance with the practical expedient adoption method, for all periods presented Arrow used the amounts disclosed in the retirement plans footnote for the prior period retrospective reclassification of the non-service cost components out of salaries and benefits and into other operating expenses. The adoption of this change in accounting for pension costs did not have a material impact on our financial position or the results of operations.

ASU 2017-09 "Compensation-Stock Compensation" provides guidance about which changes to the terms and conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. The guidance highlights the requirements for applying modification accounting and the exception criteria relating to changes in share-based payment terms. For Arrow, the standard became effective in the first quarter of 2018. The adoption of this change in accounting for share-based payment awards did not have a material impact on our financial position or the results of operations in periods subsequent to its adoption.

ASU 2014-09 - "Revenue from Contracts with Customers (Topic 606)" clarifies the principles for recognizing revenue and supersedes most current revenue recognition guidance. The ASU is intended to clarify and converge the revenue recognition principles under current generally accepted accounting principles (GAAP) to streamline revenue recognition requirements in addition to expanding required revenue recognition disclosures. In August 2015, the Financial Accounting Standards Board (FASB) issued ASU 2015-14, Deferral of the Effective Date, which provides a one year deferral to the effective date, therefore, ASU 2014-09 is effective for public companies for annual periods, and interim periods within those annual periods, beginning on or after December 15, 2017. As such, the Company adopted ASU 2014-09 as of January 1, 2018 using the modified retrospective approach, and have identified the recognition of revenue related to specific types of fiduciary activities and specific types of revenue from insurance commissions to be in the scope of this guidance. Regarding fiduciary activities, under prior GAAP, revenue was recognized from settling client estates over the time period the work was performed. With the adoption of Topic 606, revenue will be recognized when the performance obligation is completed, which is when the settlement of the client estate is closed. This change will not have a material impact on our consolidated financial statements. Regarding revenue from property and casualty insurance policies in which the client elected to pay premiums in installments, under prior GAAP, revenue was recognized when the client premiums were billed. With the adoption of Topic 606, revenue is recognized when the performance obligation is substantially completed , i.e., when the insurance policy is issued. This change will not have a material impact to our consolidated financial statements. The adoption of Topic 606 related to the previously described fiduciary activity and insurance commission required a cumulative effect adjustment as of January 1, 2018 to decrease retained earnings by $102 thousand. Additional information related to net revenue generated from contracts with customers is as follows:

Revenue Recognition - Accounting Standard Codification ("ASC") Topic 606, Revenue from Contracts with Customers ("ASC Topic 606"), establishes principles for reporting information about the nature, amount, timing and uncertainty of revenue and cash flows arising from the entity's contracts to provide goods or services to customers. The core principle requires an entity to recognize revenue to depict the transfer of promised goods or services a customer in an amount that reflects the consideration to which the entity expects to receive in exchange for those goods or services as performance obligations are satisfied.

The majority of the Company's revenue-generating transactions are not subject to ASC Topic 606, including revenue generated from financial instruments, such as loans and investment securities which are presented in our consolidated income statements as components of net interest income. The following is a description of principal activities from which the Company generates its revenue from noninterest income sources that are within the scope of ASC Topic 606:

Income From Fiduciary Activities: represents revenue derived mainly through the management of client investments which is based on the market value of these assets and the fee schedule contained in the applicable account management agreement. Since the revenue is mainly based on the market value of assets, this amount can be volatile as financial markets increase and decrease based on various economic factors. The terms of the account management agreements generally specify that the performance obligations are completed each quarter. Accordingly, we mainly recognize revenue from fiduciary activities on a quarterly basis.

Fees for Other Services to Customers: represents general service fees for monthly deposit account maintenance and account activity plus fees from other deposit-based services. Revenue is recognized when the performance obligation is completed, which is generally on a monthly basis for account maintenance services, or upon the completion of a deposit-related transaction. Payment for such performance obligations are generally received at the time the performance obligations are satisfied.

Insurance Commissions: represents commissions and fees paid by insurance carriers for both property and casualty insurance policies, and for services performed for employment benefits clients. Revenue from our property and casualty business is recognized when our performance obligation is satisfied, which is generally the effective date of the bound coverage since there are no significant performance obligations remaining. Revenue from our employment benefit brokerage business is recognized when our benefit servicing performance obligations are satisfied, generally on a monthly basis.

The following accounting standards have been issued and become effective for the Company at a future date:

ASU 2016-02 "Leases" will require the recognition of operating leases. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). ASU 2016-02 requires lessees to recognize right of use assets and lease liabilities on the balance sheet for all leases with terms longer than 12 months. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize a right of use asset and lease liability. Additionally, when measuring assets and liabilities arising from a lease, optional payments should be included only if the lessee is reasonably certain to exercise an option to extend the lease, exercise a purchase option or not exercise an option to terminate the lease. In January 2018, the FASB issued ASU 2018-01, Leases (Topic 842): Land Easement Practical Expedient for Transition to Topic 842. ASU 2018-01 was issued to address concerns about the cost and complexity of complying with the transition provisions of ASU 2018-01. Early adoption is permitted in any interim or annual period. For Arrow, the standard becomes effective in the first quarter of 2019. We do not expect that the adoption of this change in accounting for operating leases will have a material impact on our financial position or the results of operations in periods subsequent to its adoption. As of March 31, 2018, we have less than $2.2 million in minimum lease payments for existing operating leases of branch and insurance locations with varying expiration dates from 2018 to 2031.

ASU 2016-13 "Financial Instruments - Credit Losses" will change the way we and other financial entities recognize losses on credit instruments, primarily loans and available-for-sale securities. Currently, loan losses are recognized using an "incurred loss" methodology that delays recognition until it is probable a loss has been incurred. Under the ASU, the incurred loss model will be replaced with a methodology that reflects current expected credit losses (CECL) over the life of the instrument and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. Currently, credit losses on available-for-sale securities reduce the carrying value of the instrument and cannot be reversed. Under the ASU, the amount of the credit loss is carried as a valuation allowance and can be reversed. For Arrow, the standard is effective for the first quarter of 2020 and early adoption is allowed in 2019. We plan on adopting the standard in the first quarter of 2020, in order to maximize the accumulation of data needed to calculate the new CECL methodologies. The ASU describes several acceptable methodologies for calculating expected losses on a loan or a pool of loans. Although other methodologies are allowed, we plan on only using the methodologies described in the ASU. Arrow is still evaluating criteria for loan segments and the appropriate methodology for each segment. We expect that the use of the CECL methodology will result in higher levels of the allowance for loan losses than the incurred loss model. The initial adjustment will not be reported in earnings, but as the cumulative effect of a change in accounting principle. We expect that the adoption of the new standard will have a material impact on the level of the allowance for loan losses, but we do not expect that the periodic provision for loan losses to be materially higher than our historic amounts. The adoption of the standard will have an impact on shareholders’ equity, but we expect that we will remain well-capitalized under current regulatory calculations. The standard also requires new disclosures about the loan portfolio. Both the FASB and banking regulators have made estimates of the range of percentage increases in the allowance for loan losses. One FASB board member has commented that the initial range of 30% to 50% for increases in bank allowances is too high, and that the most likely range is in the single digits, although some institutions will experience higher increases. Due to our historical low level of loan losses and our current conservative underwriting standards, we believe that the increase in our loan loss allowance will be in the single digits. The FASB’s Transition Research Group for credit losses still has several outstanding unresolved questions, some of which may have a significant impact on CECL calculations. In 2016 we selected a third-party software product to calculate our CECL methodologies. We also began to accumulate a database of monthly loan data, beginning with June 2015, of the fields needed to make the loss calculations under the new CECL methodologies. During 2018, we plan on refining our loan segment criteria and, for most segments, we will calculate expected losses (for an expanding database) using two or more of the applicable methodologies before determining the most appropriate methodology for each loan segment or sub-segment.     

ASU 2017-04 "Intangibles-Goodwill and Other" changes the procedures for evaluating impairment of goodwill. Prior to the adoption of this standard, entities were required to perform procedures to determine the fair value of the underlying assets and liabilities following the guidance for determining the fair value of assets and liabilities in a business combination. This additional step to impairment testing has been eliminated. Under this standard, entities should perform goodwill impairment testing by comparing the fair value of a reporting unit to its carrying value. This change should reduce the cost and complexity of evaluating goodwill for impairment. For Arrow, the standard becomes effective in the first quarter of 2019, however, early adoption is permitted. This amendment will not affect our assessment of goodwill impairment since we currently perform the analysis of comparing carrying value to fair value of our reporting units that have goodwill and we have not had to perform a Step 2 Impairment Test to date.    

ASU 2017-08 "Receivables-Nonrefundable Fees and Other Costs" amends the amortization period for certain purchased callable debt securities held at a premium. This shortens the amortization period for the premium to the earliest call date. Under GAAP, entities generally amortize the premium as an adjustment of yield over the contractual life of the instrument. For Arrow, the standard becomes effective in the first quarter of 2019. We do not expect that the adoption of this change in accounting for certain callable debt securities will have a material impact on our financial position or the results of operations in periods subsequent to its adoption.

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Investment Securities

3 Months Ended

Mar. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Investment Securities

INVESTMENT SECURITIES (In Thousands)

Management determines the appropriate classification of securities at the time of purchase.  Securities reported as held-to-maturity are those debt securities which Arrow has both the positive intent and ability to hold to maturity and are stated at amortized cost.  Securities available-for-sale are reported at fair value, with unrealized gains and losses reported in accumulated other comprehensive income or loss, net of taxes. Beginning January 1, 2018, upon adoption of ASU 2016-01, equity securities with readily determinable fair values are stated at fair value with realized and unrealized gains and losses reported in income. For periods prior to January 1, 2018, equity securities were classified as available-for-sale and stated at fair value with unrealized gains and losses reported as a separate component of accumulated other comprehensive income, net of tax.

The following table is the schedule of Available-For-Sale Securities at March 31, 2018, December 31, 2017 and March 31, 2017:

Available-For-Sale Securities
	U.S. Government & Agency Obligations		State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Mutual Funds and Equity Securities		Total Available- For-Sale Securities
March 31, 2018
Available-For-Sale Securities,   at Amortized Cost	$	60,264	$	9,741	$	240,033	$	1,000	$	—	$	311,038
Available-For-Sale Securities,   at Fair Value	59,657		9,743		235,389		800		—		305,589
Gross Unrealized Gains	—		7		347		—		—		354
Gross Unrealized Losses	607		5		4,991		200		—		5,803
Available-For-Sale Securities,   Pledged as Collateral											229,857
Maturities of Debt Securities,   at Amortized Cost:
Within One Year	$	13,018	$	8,363	$	891	$	—			$	22,272
From 1 - 5 Years	47,246		650		121,977		—				169,873
From 5 - 10 Years	—		208		71,473		—				71,681
Over 10 Years	—		520		45,692		1,000				47,212
Maturities of Debt Securities,   at Fair Value:
Within One Year	$	12,949	$	8,360	$	896	$	—			$	22,205
From 1 - 5 Years	46,708		655		118,649		—				166,012
From 5 - 10 Years	—		208		70,140		—				70,348
Over 10 Years	—		520		45,704		800				47,024
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	17,128	$	7,421	$	112,078	$	—	$	—	$	136,627
12 Months or Longer	42,529		—		80,759		800		—		124,088
Total	$	59,657	$	7,421	$	192,837	$	800	$	—	$	260,715
Number of Securities in a   Continuous Loss Position	14		29		69		1		—		113
Unrealized Losses on   Securities in a Continuous   Loss Position:
Less than 12 Months	$	266	$	6	$	1,940	$	—	$	—	$	2,212
12 Months or Longer	341		—		3,050		200		—		3,591
Total	$	607	$	6	$	4,990	$	200	$	—	$	5,803
Disaggregated Details:
US Treasury Obligations,   at Amortized Cost	$	—
US Treasury Obligations, at Fair Value	—
US Agency Obligations, at Amortized Cost	60,264
US Agency Obligations, at Fair Value	59,657

Available-For-Sale Securities
	U.S. Government & Agency Obligations		State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Mutual Funds and Equity Securities		Total Available- For-Sale Securities
US Government Agency   Securities, at Amortized Cost					$	59,446
US Government Agency   Securities, at Fair Value					59,469
Government Sponsored Entity   Securities, at Amortized Cost					180,587
Government Sponsored Entity Securities, at Fair Value					175,920
December 31, 2017
Available-For-Sale Securities,   at Amortized Cost	$	60,328	$	10,351	$	229,077	$	1,000	$	1,120	$	301,876
Available-For-Sale Securities,   at Fair Value	59,894		10,349		227,596		800		1,561		300,200
Gross Unrealized Gains	—		9		485		—		441		935
Gross Unrealized Losses	434		11		1,966		200		—		2,611
Available-For-Sale Securities,   Pledged as Collateral,   at Fair Value											183,052
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	20,348	$	8,498	$	70,930	$	—	$	—	$	99,776
12 Months or Longer	39,546		—		80,759		800		—		121,105
Total	$	59,894	$	8,498	$	151,689	$	800	$	—	$	220,881
Number of Securities in a   Continuous Loss Position	14		36		55		1		—		106
Unrealized Losses on   Securities in a Continuous   Loss Position:
Less than 12 Months	$	172	$	11	$	363	$	—	$	—	$	546
12 Months or Longer	262		—		1,603		200		—		2,065
Total	$	434	$	11	$	1,966	$	200	$	—	$	2,611
Disaggregated Details:
US Treasury Obligations,   at Amortized Cost	$	—
US Treasury Obligations, at Fair Value	—
US Agency Obligations, at Amortized Cost	60,328
US Agency Obligations, at Fair Value	59,894
US Government Agency   Securities, at Amortized Cost					$	40,832
US Government Agency   Securities, at Fair Value					40,832
Government Sponsored Entity   Securities, at Amortized Cost					188,245
Government Sponsored Entity Securities, at Fair Value					186,764

Available-For-Sale Securities
	U.S. Government & Agency Obligations		State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Mutual Funds and Equity Securities		Total Available- For-Sale Securities
March 31, 2017
Available-For-Sale Securities,   at Amortized Cost	$	147,012	$	25,467	$	170,601	$	3,501	$	1,120	$	347,701
Available-For-Sale Securities,   at Fair Value	147,231		25,507		169,728		3,298		1,395		347,159
Gross Unrealized Gains	270		40		934		—		275		1,519
Gross Unrealized Losses	52		—		1,806		203		—		2,061
Available-For-Sale Securities,   Pledged as Collateral											295,797
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	42,937	$	828	$	127,931	$	2,498	$	—	$	174,194
12 Months or Longer	—		—		—		800		—		800
Total	$	42,937	$	828	$	127,931	$	3,298	$	—	$	174,994
Number of Securities in a   Continuous Loss Position	11		5		41		4		—		61
Unrealized Losses on Securities   in a Continuous Loss Position:
Less than 12 Months	$	52	$	—	$	1,806	$	3	$	—	$	1,861
12 Months or Longer	—		—		—		200		—		200
Total	$	52	$	—	$	1,806	$	203	$	—	$	2,061
Disaggregated Details:
US Treasury Obligations, at Amortized Cost	$	54,649
US Treasury Obligations, at Fair Value	$	54,695
US Agency Obligations, at Amortized Cost	$	92,363
US Agency Obligations, at Fair Value	92,536
US Government Agency   Securities, at Amortized Cost					$	1,616
US Government Agency   Securities, at Fair Value					1,625
Government Sponsored Entity   Securities, at Amortized Cost					168,985
Government Sponsored Entity Securities, at Fair Value					168,103

The following table is the schedule of Held-To-Maturity Securities at March 31, 2018, December 31, 2017 and March 31, 2017:

Held-To-Maturity Securities
	State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Total Held-To Maturity Securities
March 31, 2018
Held-To-Maturity Securities,   at Amortized Cost	$	272,938	$	57,186	$	—	$	330,124
Held-To-Maturity Securities,   at Fair Value	268,605		56,333		—		324,938
Gross Unrealized Gains	646		—		—		646
Gross Unrealized Losses	4,979		853		—		5,832
Held-To-Maturity Securities,   Pledged as Collateral							307,273
Maturities of Debt Securities,   at Amortized Cost:
Within One Year	$	35,115	$	—	$	—	$	35,115
From 1 - 5 Years	81,312		51,243		—		132,555
From 5 - 10 Years	153,111		5,943		—		159,054
Over 10 Years	3,400		—		—		3,400
Maturities of Debt Securities,   at Fair Value:
Within One Year	$	35,160	$	—	$	—	$	35,160
From 1 - 5 Years	81,634		50,490		—		132,124
From 5 - 10 Years	148,412		5,843		—		154,255
Over 10 Years	3,399		—		—		3,399
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	101,695	$	53,076	$	—	$	154,771
12 Months or Longer	65,012		3,257		—		68,269
Total	$	166,707	$	56,333	$	—	$	223,040
Number of Securities in a   Continuous Loss Position	495		47		—		542
Unrealized Losses on Securities    in a Continuous Loss Position:
Less than 12 Months	$	1,981	$	767	$	—	$	2,748
12 Months or Longer	2,998		86		—		3,084
Total	$	4,979	$	853	$	—	$	5,832
Disaggregated Details:
US Government Agency   Securities, at Amortized Cost			$	2,530
US Government Agency   Securities, at Fair Value			2,483
Government Sponsored Entity   Securities, at Amortized Cost			54,656
Government Sponsored Entity Securities, at Fair Value			53,850

Held-To-Maturity Securities
	State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Total Held-To Maturity Securities
December 31, 2017
Held-To-Maturity Securities,   at Amortized Cost	$	275,530	$	60,377	$	—	$	335,907
Held-To-Maturity Securities,   at Fair Value	275,353		60,548		—		335,901
Gross Unrealized Gains	1,691		269		—		1,960
Gross Unrealized Losses	1,868		98		—		1,966
Held-To-Maturity Securities,   Pledged as Collateral							318,622
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	55,648	$	13,764	$	—	$	69,412
12 Months or Longer	65,152		3,257		—		68,409
Total	$	120,800	$	17,021	$	—	$	137,821
Number of Securities in a   Continuous Loss Position	352		14		—		366
Unrealized Losses on   Securities in a Continuous   Loss Position:
Less than 12 Months	$	442	$	56	$	—	$	498
12 Months or Longer	1,425		43		—		1,468
Total	$	1,867	$	99	$	—	$	1,966
Disaggregated Details:
US Government Agency   Securities, at Amortized Cost			$	2,680
US Government Agency   Securities, at Fair Value			2,661
Government Sponsored Entity   Securities, at Amortized Cost			57,697
Government Sponsored Entity Securities, at Fair Value			57,887
March 31, 2017
Held-To-Maturity Securities,   at Amortized Cost	$	263,642	$	71,569	$	—	$	335,211
Held-To-Maturity Securities,   at Fair Value	263,255		71,850		—		335,105
Gross Unrealized Gains	2,410		298		—		2,708
Gross Unrealized Losses	2,796		17		—		2,813
Held-To-Maturity Securities,   Pledged as Collateral							316,966
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	95,450	$	7,682	$	—	$	103,132
12 Months or Longer	657		—		—		657
Total	$	96,107	$	7,682	$	—	$	103,789
Number of Securities in a   Continuous Loss Position	251		8		—		259
Unrealized Losses on   Securities in a Continuous   Loss Position:
Less than 12 Months	$	2,793	$	17	$	—	$	2,810
12 Months or Longer	3		—		—		3
Total	$	2,796	$	17	$	—	$	2,813

Held-To-Maturity Securities
	State and Municipal Obligations	Mortgage- Backed Securities		Corporate and Other Debt Securities	Total Held-To Maturity Securities
March 31, 2017
Disaggregated Details:
US Government Agency   Securities, at Amortized Cost		$	3,106
US Government Agency   Securities, at Fair Value		3,121
Government Sponsored Entity   Securities, at Amortized Cost		68,463
Government Sponsored Entity Securities, at Fair Value		68,729

The following table is the schedule of Equity Securities at March 31, 2018. Upon the adoption of ASU 2016-01 effective January 1, 2018, Equity Securities are not included in Securities Available-For-Sale since unrealized gains and losses are now recorded in the Consolidated Statements of Income. Prior to January 1, 2018, Equity Securities were included in Securities Available-For-Sale.

Equity Securities
March 31, 2018
Equity Securities, at Fair Value	$	1,579

In the tables above, maturities of mortgage-backed securities are included based on their expected average lives.  Actual maturities will differ from the table above because issuers may have the right to call or prepay obligations with, or without, prepayment penalties.

Securities in a continuous loss position, in the tables above for March 31, 2018, December 31, 2017 and March 31, 2017, do not reflect any deterioration of the credit worthiness of the issuing entities.  U.S. Government and Agency issues, including agency-backed collateralized mortgage obligations and mortgage-backed securities, are all rated at least Aaa by Moody's or AA+ by Standard and Poor's.

The state and municipal obligations are general obligations supported by the general taxing authority of the issuer, and in some cases are insured. Obligations issued by school districts are supported by state aid.  For any non-rated municipal securities, credit analysis is performed in-house based upon data that has been submitted by the issuers to the New York State Comptroller. That analysis reflects satisfactory credit worthiness of the municipalities.  Corporate and other debt securities continue to be rated above investment grade according to Moody's and Standard and Poor's. Subsequent to March 31, 2018, and through the date of the filing of this Quarterly Report on Form 10-Q Arrow held no securities downgraded below investment grade.  

The unrealized losses on these temporarily impaired securities are primarily the result of changes in interest rates for fixed rate securities where the interest rate received is less than the current rate available for new offerings of similar securities, changes in market spreads as a result of shifts in supply and demand, and/or changes in the level of prepayments for mortgage related securities.   Because we do not currently intend to sell any temporarily impaired securities, and because it is not more likely-than-not that we would be required to sell the securities prior to recovery, the impairment is considered temporary.

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Loans

3 Months Ended

Mar. 31, 2018

Loans and Leases Receivable Disclosure [Abstract]

Loans

LOANS (In Thousands)

Loan Categories and Past Due Loans

The following table presents loan balances outstanding as of March 31, 2018, December 31, 2017 and March 31, 2017 and an analysis of the recorded investment in loans that are past due at these dates.  Generally, Arrow considers an amortizing loan past due 30 or more days when the borrower is two payments past due. Loans held-for-sale of $171, $327 and $896 as of March 31, 2018, December 31, 2017 and March 31, 2017, respectively, are included in the residential real estate balances for current loans.

			Commercial
	Commercial		Real Estate		Consumer		Residential		Total
March 31, 2018
Loans Past Due 30-59 Days	$	45	$	156	$	3,673	$	1,711	$	5,585
Loans Past Due 60-89 Days	60		—		751		481		1,292
Loans Past Due 90 or more Days	41		807		252		321		1,421
Total Loans Past Due	146		963		4,676		2,513		8,298
Current Loans	127,528		454,095		621,964		781,152		1,984,739
Total Loans	$	127,674	$	455,058	$	626,640	$	783,665	$	1,993,037
Loans 90 or More Days Past Due   and Still Accruing Interest	$	—	$	—	$	—	$	—	$	—
Nonaccrual Loans	652		807		441		2,570		4,470
December 31, 2017
Loans Past Due 30-59 Days	$	139	$	—	$	5,891	$	2,094	$	8,124
Loans Past Due 60-89 Days	19		—		1,215		509		1,743
Loans Past Due 90 or more Days	99		807		513		1,422		2,841
Total Loans Past Due	257		807		7,619		4,025		12,708
Current Loans	128,992		443,441		595,208		770,421		1,938,062
Total Loans	$	129,249	$	444,248	$	602,827	$	774,446	$	1,950,770
Loans 90 or More Days Past Due   and Still Accruing Interest	$	—	$	—	$	6	$	313	$	319
Nonaccrual Loans	$	588	$	1,530	$	653	$	2,755	5,526
March 31, 2017
Loans Past Due 30-59 Days	$	189	$	—	$	3,882	$	2,021	$	6,092
Loans Past Due 60-89 Days	9		—		1,145		684		1,838
Loans Past Due 90 or more Days	120		—		335		835		1,290
Total Loans Past Due	318		—		5,362		3,540		9,220
Current Loans	118,524		435,316		546,601		701,144		1,801,585
Total Loans	$	118,842	$	435,316	$	551,963	$	704,684	$	1,810,805
Loans 90 or More Days Past Due   and Still Accruing Interest	$	—	$	—	$	—	$	—	$	—
Nonaccrual Loans	$	144	$	870	$	656	$	2,603	4,273

The Company disaggregates its loan portfolio into the following four categories:

Commercial - The Company offers a variety of loan options to meet the specific needs of commercial customers including term loans, time notes and lines of credit. Such loans are made available to businesses for working capital needs such as inventory and receivables, business expansion and equipment purchases. Generally, a collateral lien is placed on equipment or other assets owned by the borrower. These loans carry a higher risk than commercial real estate loans due to the nature of the underlying collateral, which can be business assets such as equipment and accounts receivable and generally have a lower liquidation value than real estate. In the event of default by the borrower, the Company may be required to liquidate collateral at deeply discounted values. To reduce the risk, management usually obtains personal guarantees of the borrowers.

Commercial Real Estate - The Company offers commercial real estate loans to finance real estate purchases, refinancings, expansions and improvements to commercial properties. Commercial real estate loans are made to finance the purchases of real property which generally consists of real estate with completed structures. These commercial real estate loans are secured by first liens on the real estate, which may include apartments, commercial structures, housing businesses, healthcare facilities, and both owner- and non-owner-occupied facilities. These loans are typically less risky than commercial loans, since they are secured by real estate and buildings, and are generally originated in amounts of no more than 80% of the appraised value of the property. However, the Company also offers commercial construction and land development loans to finance projects, primarily within the communities that we serve. Many projects will ultimately be used by the borrowers' businesses, while others are developed for resale. These real estate loans are also secured by first liens on the real estate, which may include apartments, commercial structures, housing business, healthcare facilities and both owner-occupied and non-owner-occupied facilities. There is enhanced risk during the construction period, since the loan is secured by an incomplete project.

Consumer Loans - The Company offers a variety of consumer installment loans to finance personal expenditures. Most of these loans carry a fixed rate of interest with principal repayment terms typically ranging from one to five years, based upon the nature of the collateral and the size of the loan. In addition to installment loans, the Company also offers personal lines of credit and overdraft protection. Several loans are unsecured, which carry a higher risk of loss. Also included in this category are automobile loans. The Company primarily finances the purchases of automobiles indirectly through dealer relationships located throughout upstate New York and Vermont. Most of these loans carry a fixed rate of interest with principal repayment terms typically ranging from three to seven years. Indirect consumer loans are underwritten on a secured basis using the underlying collateral being financed.

Residential - Residential real estate loans consist primarily of loans secured by first or second mortgages on primary residences. We originate adjustable-rate and fixed-rate one-to-four-family residential real estate loans for the construction, purchase or refinancing of an existing mortgage. These loans are collateralized primarily by owner-occupied properties generally located in the Company’s market area. Loans on one-to-four-family residential real estate are generally originated in amounts of no more than 80% of the purchase price or appraised value (whichever is lower), or have private mortgage insurance. The Company’s underwriting analysis for residential mortgage loans typically includes credit verification, independent appraisals, and a review of the borrower’s financial condition. Mortgage title insurance and hazard insurance are normally required. It is our general practice to underwrite residential real estate loans to secondary market standards. Construction loans have a unique risk, because they are secured by an incomplete dwelling. This risk is reduced through periodic site inspections, including one at each loan draw period. In addition, the Company offers fixed home equity loans as well as home equity lines of credit to consumers to finance home improvements, debt consolidation, education and other uses.  Our policy allows for a maximum loan to value ratio of 80%, although periodically higher advances are allowed.  The Company originates home equity lines of credit and second mortgage loans (loans secured by a second junior lien position on one-to-four-family residential real estate).  Risk is generally reduced through underwriting criteria, which include credit verification, appraisals, a review of the borrower's financial condition, and personal cash flows.  A security interest, with title insurance when necessary, is taken in the underlying real estate.

Allowance for Loan Losses

The following table presents a roll-forward of the allowance for loan losses and other information pertaining to the allowance for loan losses:

Allowance for Loan Losses
				Commercial
	Commercial			Real Estate			Consumer			Residential			Total
Roll-forward of the Allowance for Loan Losses for the Quarterly Periods:
December 31, 2017	$	1,873		$	4,504		$	7,604		$	4,605		$	18,586
Charge-offs	(16		)	1			(347		)	(8		)	(370		)
Recoveries	—			9			86			—			95
Provision	311			(151		)	676			(90		)	746
March 31, 2018	$	2,168		$	4,363		$	8,019		$	4,507		$	19,057
December 31, 2016	$	1,017		$	5,677		$	6,120		$	4,198		$	17,012
Charge-offs	(16		)	—			(254		)	—			(270		)
Recoveries	7			—			109			—			116
Provision	(69		)	(228		)	727			(72		)	358
March 31, 2017	$	939		$	5,449		$	6,702		$	4,126		$	17,216

Allowance for Loan Losses
			Commercial
	Commercial		Real Estate		Consumer		Residential		Total
March 31, 2018
Allowance for loan losses - Loans Individually Evaluated for Impairment	$	92	$	42	$	—	$	58	$	192
Allowance for loan losses - Loans Collectively Evaluated for Impairment	2,076		4,321		8,019		4,449		18,865
Ending Loan Balance - Individually Evaluated for Impairment	489		815		91		1,564		2,959
Ending Loan Balance - Collectively Evaluated for Impairment	$	127,185	$	454,243	$	626,549	$	782,101	$	1,990,078
December 31, 2017
Allowance for loan losses - Loans Individually Evaluated for Impairment	$	94	$	2	$	—	$	10	$	106
Allowance for loan losses - Loans Collectively Evaluated for Impairment	1,779		4,502		7,604		4,595		18,480
Ending Loan Balance - Individually Evaluated for Impairment	489		1,537		95		1,562		3,683
Ending Loan Balance - Collectively Evaluated for Impairment	$	128,760	$	442,711	$	602,732	$	772,884	$	1,947,087
March 31, 2017
Allowance for loan losses - Loans Individually Evaluated for Impairment	$	—	$	34	$	—	$	—	$	34
Allowance for loan losses - Loans Collectively Evaluated for Impairment	939		5,415		6,702		4,126		17,182
Ending Loan Balance - Individually Evaluated for Impairment	—		884		88		1,094		2,066
Ending Loan Balance - Collectively Evaluated for Impairment	$	118,841	$	434,432	$	551,876	$	703,590	$	1,808,739

Through the provision for loan losses, an allowance for loan losses is maintained that reflects the best estimate of the inherent risk of loss in the Company’s loan portfolio as of the balance sheet date. Additions are made to the allowance for loan losses through a periodic provision for loan losses. Actual loan losses are charged against the allowance for loan losses when loans are deemed uncollectible and recoveries of amounts previously charged off are recorded as credits to the allowance for loan losses.

Our loan officers and risk managers meet at least quarterly to discuss and review the conditions and risks associated with certain criticized and classified commercial-related relationships. In addition, our independent internal loan review department performs periodic reviews of the credit quality indicators on individual loans in our commercial loan portfolio.

We use a two-step process to determine the provision for loan losses and the amount of the allowance for loan losses. We measure impairment of impaired loans on a quarterly basis. Our impaired loans are generally nonaccrual loans over $250 thousand and all troubled debt restructured loans. Our impaired loans are generally considered to be collateral dependent with the specific reserve, if any, determined based on the value of the collateral less estimated costs to sell.

The remainder of the portfolio is evaluated on a pooled basis, as described below. For each homogeneous loan pool, we estimate a total loss factor based on the historical net loss rates adjusted for applicable qualitative factors. We update the total loss factors assigned to each loan category on a quarterly basis. For the commercial, commercial construction, and commercial real estate categories, we further segregate the loan categories by credit risk profile (pools of loans graded pass, special mention and accruing substandard). Additional description of the credit risk classifications is detailed in the Credit Quality Indicators section of this note.

We determine the annualized historical net loss rate for each loan category using a trailing three-year net charge-off average. While historical net loss experience provides a reasonable starting point for analysis, historical net losses, or even recent trends in net losses, do not by themselves form a sufficient basis to determine the appropriate level of the allowance for loan losses. Therefore, we also consider and adjust historical net loss factors for qualitative factors that impact the inherent risk of loss associated with the loan categories within the total loan portfolio. These include:

• Changes in the volume and severity of past due, nonaccrual and adversely classified loans

• Changes in the nature and volume of the portfolio and in the terms of loans

• Changes in the value of the underlying collateral for collateral dependent loans

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

• Changes in the quality of the loan review system

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

• Changes in international, national, regional, and local economic and business conditions and developments that affect the collectibility of the portfolio

• The existence and effect of any concentrations of credit, and changes in the level of such concentrations

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

Credit Quality Indicators

The following table presents the credit quality indicators by loan category at March 31, 2018, December 31, 2017 and March 31, 2017:

Loan Credit Quality Indicators
			Commercial
	Commercial		Real Estate		Consumer		Residential		Total
March 31, 2018
Credit Risk Profile by Creditworthiness Category:
Satisfactory	$	107,838	$	430,121	$	—	$	—	$	537,959
Special Mention	17,220		611		—		—		17,831
Substandard	2,615		23,521		—		—		26,136
Doubtful	—		807		—		—		807
Credit Risk Profile Based on Payment Activity:
Performing	$	—	$	—	$	626,198	$	781,095	$	1,407,293
Nonperforming	—		—		441		2,570		3,011
December 31, 2017
Credit Risk Profile by Creditworthiness Category:
Satisfactory	$	124,961	$	417,362	$	—	$	—	$	542,323
Special Mention	1,341		177		—		—		1,518
Substandard	2,947		25,902		—		—		28,849
Doubtful	—		807		—		—		807
Credit Risk Profile Based on Payment Activity:
Performing	$	—	$	—	$	602,168	$	771,584	$	1,373,752
Nonperforming	—		—		659		3,068		3,727
March 31, 2017
Credit Risk Profile by Creditworthiness Category:
Satisfactory	$	109,416	$	402,266	$	—	$	—	$	511,682
Special Mention	1,349		2,233		—		—		3,582
Substandard	8,077		30,817		—		—		38,894
Doubtful	—		—		—		—		—
Credit Risk Profile Based on Payment Activity:
Performing	$	—	$	—	$	551,307	$	702,081	$	1,253,388
Nonperforming	—		—		656		2,603		3,259

For the purposes of the table above, nonperforming consumer and residential loans are those loans on nonaccrual status or are 90 days or more past due and still accruing interest.

For the allowance calculation, we use an internally developed system of five credit quality indicators to rate the credit worthiness of each commercial loan defined as follows:

1) Satisfactory - "Satisfactory" borrowers have acceptable financial condition with satisfactory record of earnings and sufficient historical and projected cash flow to service the debt.  Borrowers have satisfactory repayment histories and primary and secondary sources of repayment can be clearly identified;

2) Special Mention - Loans in this category have potential weaknesses that deserve management’s close attention.  If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the institution’s credit position at some future date.  "Special mention" assets are not adversely classified and do not expose an institution to sufficient risk to warrant adverse classification.  Loans which might be assigned this credit quality indicator include loans to borrowers with deteriorating financial strength and/or earnings record and loans with potential for problems due to weakening economic or market conditions;

3) Substandard - Loans classified as “substandard” are inadequately protected by the current sound net worth or paying capacity of the borrower or the collateral pledged, if any.  Loans in this category have well defined weaknesses that jeopardize the repayment.  They are characterized by the distinct possibility that the bank will sustain some loss if the deficiencies are not corrected.  “Substandard” loans may include loans which are likely to require liquidation of collateral to effect repayment, and other loans where character or ability to repay has become suspect. Loss potential, while existing in the aggregate amount of substandard assets, does not have to exist in individual assets classified substandard;

4) Doubtful - Loans classified as “doubtful” have all of the weaknesses inherent in those classified as “substandard” with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of current existing facts, conditions, and values highly questionable and improbable.  Although possibility of loss is extremely high, classification of these loans as “loss” has been deferred due to specific pending factors or events which may strengthen the value (i.e. possibility of additional collateral, injection of capital, collateral liquidation, debt restructure, economic recovery, etc).  Loans classified as “doubtful” need to be placed on non-accrual; and

5) Loss - Loans classified as “loss” are considered uncollectible and of such little value that their continuance as bankable assets is not warranted.  As of the date of the balance sheet, all loans in this category have been charged-off to the allowance for loan losses.  

Commercial loans are generally evaluated on an annual basis depending on the size and complexity of the loan relationship, unless the credit related quality indicator falls to a level of "special mention" or below, when the loan is evaluated quarterly.  The credit quality indicator is one of the factors used in assessing the level of inherent risk of loss in our commercial related loan portfolios.

Impaired Loans

The following table presents information on impaired loans based on whether the impaired loan has a recorded related allowance or has no recorded related allowance:

Impaired Loans
			Commercial
	Commercial		Real Estate		Consumer		Residential		Total
March 31, 2018
Recorded Investment:
With No Related Allowance	$	—	$	8	$	90	$	1,276	$	1,374
With a Related Allowance	483		783		—		356		1,622
Unpaid Principal Balance:
With No Related Allowance	—		8		90		1,279		1,377
With a Related Allowance	489		807		—		286		1,582
December 31, 2017
Recorded Investment:
With No Related Allowance	$	—	$	781	$	94	$	1,269	$	2,144
With a Related Allowance	485		725		—		333		1,543
Unpaid Principal Balance:
With No Related Allowance	—		816		95		1,274		2,185
With a Related Allowance	489		721		—		288		1,498
March 31, 2017
Recorded Investment:
With No Related Allowance	$	—	$	884	$	88	$	806	$	1,778
With a Related Allowance	—		—		—		288		288
Unpaid Principal Balance:
With No Related Allowance	—		884		88		806		$	1,778
With a Related Allowance	—		—		—		288		288
For the Quarter Ended:
March 31, 2018
Average Recorded Balance:
With No Related Allowance	$	—	$	395	$	92	$	1,273	$	1,760
With a Related Allowance	484		754		—		345		1,583
Interest Income Recognized:
With No Related Allowance	—		—		—		16		16
With a Related Allowance	—		—		—		24		24
Cash Basis Income:
With No Related Allowance	—		—		—		—		—
With a Related Allowance	—		—		—		—		—
March 31, 2017
Average Recorded Balance:
With No Related Allowance	$	—	$	887	$	90	$	952	$	1,929
With a Related Allowance	—		—		—		144		144
Interest Income Recognized:
With No Related Allowance	—		—		1		—		1
With a Related Allowance	—		—		—		—		—
Cash Basis Income:
With No Related Allowance	—		—		—		—		—
With a Related Allowance	—		—		—		—		—

At March 31, 2018, December 31, 2017 and March 31, 2017, all impaired loans were considered to be collateral dependent and were therefore evaluated for impairment based on the fair value of collateral less estimated cost to sell. Interest income recognized in the table above, represents income earned after the loans became impaired and includes restructured loans in compliance with their modified terms and nonaccrual loans where we have recognized interest income on a cash basis.

Loans Modified in Trouble Debt Restructurings

The following table presents information on loans modified in trouble debt restructurings during the periods indicated.

Loans Modified in Trouble Debt Restructurings During the Period
			Commercial
	Commercial		Real Estate		Consumer		Residential		Total
For the Quarter Ended:
March 31, 2018
Number of Loans	—		—		1		—		1
Pre-Modification Outstanding Recorded Investment	$	—	$	—	$	3	$	—	$	3
Post-Modification Outstanding Recorded Investment	—		—		3		—		3
Subsequent Default, Number of Contracts	—		—		—		—		—
Subsequent Default, Recorded Investment	—		—		—		—		—
March 31, 2017
Number of Loans	—		—		2		—		2
Pre-Modification Outstanding Recorded Investment	$	—	$	—	$	15	$	—	$	15
Post-Modification Outstanding Recorded Investment	—		—		15		—		15
Subsequent Default, Number of Contracts	—		—		—		—		—
Subsequent Default, Recorded Investment	—		—		—		—		—

In general, loans requiring modification are restructured to accommodate the projected cash-flows of the borrower. Such modifications may involve a reduction of the interest rate, a significant deferral of payments or forgiveness of a portion of the outstanding principal balance. As indicated in the table above, no loans modified during the preceding twelve months subsequently defaulted as of March 31, 2018.

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Guarantees

3 Months Ended

Mar. 31, 2018

Guarantees [Abstract]

Guarantees

GUARANTEES (In Thousands)

The following table presents the notional amount and fair value of Arrow's off-balance sheet commitments to extend credit and commitments under standby letters of credit as of March 31, 2018, December 31, 2017 and March 31, 2017:

Commitments to Extend Credit and Letters of Credit
	March 31, 2018		December 31, 2017		March 31, 2017
Notional Amount:
Commitments to Extend Credit	$	328,774	$	315,256	$	294,618
Standby Letters of Credit	3,584		3,526		3,371
Fair Value:
Commitments to Extend Credit	$	—	$	—	$	—
Standby Letters of Credit	24		23		28

Arrow is party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers.  These financial instruments include commitments to extend credit and standby letters of credit.  Commitments to extend credit include home equity lines of credit, commitments for residential and commercial construction loans and other personal and commercial lines of credit.  These instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the consolidated balance sheets.  The contract or notional amounts of those instruments reflect the extent of the involvement Arrow has in particular classes of financial instruments.

Arrow's exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit and standby letters of credit is represented by the contractual notional amount of those instruments.  Arrow uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments.

Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract.  Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee.  Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements.  Arrow evaluates each customer's creditworthiness on a case-by-case basis.  Home equity lines of credit are secured by residential real estate.  Construction commitments are secured by underlying real estate.  For other lines of credit, the amount of collateral obtained, if deemed necessary by Arrow upon extension of credit, is based on management's credit evaluation of the counterparty.  Collateral held varies, but may include accounts receivable, inventory, property, plant and equipment, and income-producing commercial properties.  Most of the commitments are variable rate instruments.

Arrow does not issue any guarantees that would require liability-recognition or disclosure, other than its standby letters of credit.

Arrow has issued conditional commitments in the form of standby letters of credit to guarantee payment on behalf of a customer and guarantee the performance of a customer to a third party.  Standby letters of credit generally arise in connection with lending relationships. The credit risk involved in issuing these instruments is essentially the same as that involved in extending loans to customers. Contingent obligations under standby letters of credit at March 31, 2018, December 31, 2017 and March 31, 2017 represent the maximum potential future payments Arrow could be required to make.  Typically, these instruments have terms of 12 months or less and expire unused; therefore, the total amounts do not necessarily represent future cash requirements.  Each customer is evaluated individually for creditworthiness under the same underwriting standards used for commitments to extend credit and on-balance sheet instruments. Company policies governing loan collateral apply to standby letters of credit at the time of credit extension.  Loan-to-value ratios generally range from 50% for movable assets, such as inventory, to 100% for liquid assets, such as bank CD's.  Fees for standby letters of credit typically range from 1% to 3% of the notional amount.  Fees are collected upfront and are amortized over the life of the commitment. The carrying amount and fair values of Arrow's standby letters of credit at March 31, 2018, December 31, 2017 and March 31, 2017, were insignificant.  The fair value of standby letters of credit is based on the fees currently charged for similar agreements or the cost to terminate the arrangement with the counterparties.

The fair value of commitments to extend credit is determined by estimating the fees to enter into similar agreements, taking into account the remaining terms and present creditworthiness of the counterparties, and for fixed rate loan commitments, the difference between the current and committed interest rates.  Arrow provides several types of commercial lines of credit and standby letters of credit to its commercial customers.  The pricing of these services is not isolated, as Arrow considers the customer's complete deposit and borrowing relationship in pricing individual products and services.  The commitments to extend credit also include commitments under home equity lines of credit, for which Arrow charges no fee.  The carrying value and fair value of commitments to extend credit are not material and Arrow does not expect to incur any material loss as a result of these commitments.

In the normal course of business, Arrow and its subsidiary banks become involved in a variety of routine legal proceedings.  At present, there are no legal proceedings pending or threatened, which in the opinion of management and counsel, would result in a material loss to Arrow.

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Comprehensive Income

3 Months Ended

Mar. 31, 2018

Other Comprehensive Income (Loss), Net of Tax [Abstract]

Comprehensive Income

COMPREHENSIVE INCOME (In Thousands)

The following table presents the components of other comprehensive income for the three-month periods ended March 31, 2018 and 2017:

Schedule of Comprehensive Income
	Three Months Ended March 31,
				Tax
	Before-Tax			(Expense)			Net-of-Tax
	Amount			Benefit			Amount
2018
Net Unrealized Securities Holding Losses on Securities Available-for-Sale Arising During the Period	(3,332		)	$	847		(2,485		)
Amortization of Net Retirement Plan Actuarial Loss	60			(14		)	46
Accretion of Net Retirement Plan Prior Service Credit	(1		)	—			(1		)
Other Comprehensive Loss	$	(3,273	)	$	833		$	(2,440	)
2017
Net Unrealized Securities Holding Gains on Securities Available-for-Sale Arising During the Period	77			$	(30	)	47
Amortization of Net Retirement Plan Actuarial Loss	178			(69		)	109
Accretion of Net Retirement Plan Prior Service Credit	(3		)	1			(2		)
Other Comprehensive Income	$	252		$	(98	)	$	154

The following table presents the changes in accumulated other comprehensive income by component:

Changes in Accumulated Other Comprehensive Income (Loss) by Component (1)
	Unrealized			Defined Benefit Plan Items
	Gains and
	Losses on						Net Prior
	Available-for-			Net Gain			Service
	Sale Securities			(Loss)			(Cost ) Credit			Total
For the Quarter-To-Date periods ended:
December 31, 2017	$	(1,250	)	$	(6,380	)	$	(884	)	$	(8,514	)
Other comprehensive income or loss before reclassifications	(2,485		)	—			—			(2,485		)
Amounts reclassified from accumulated other comprehensive income	—			46			(1		)	45
Net current-period other comprehensive income (loss)	(2,485		)	46			(1		)	(2,440		)
Reclassification due to the adoption of ASU 2016-01	(331		)							(331		)
March 31, 2018	$	(4,066	)	$	(6,334	)	$	(885	)	$	(11,285	)
December 31, 2016	$	(382	)	$	(5,737	)	$	(715	)	$	(6,834	)
Other comprehensive income or loss before reclassifications	47			—			—			47
Amounts reclassified from accumulated other comprehensive income	—			109			(2		)	107
Net current-period other comprehensive income (loss)	47			109			(2		)	154
March 31, 2017	$	(335	)	$	(5,628	)	$	(717	)	$	(6,680	)

(1) All amounts are net of tax. Amounts in parentheses indicate debits.

The following table presents the reclassifications out of accumulated other comprehensive income:

Reclassifications Out of Accumulated Other Comprehensive Income (1)
	Amounts Reclassified
Details about Accumulated Other	from Accumulated Other				Affected Line Item in the Statement
Comprehensive Income (Loss) Components	Comprehensive Income				Where Net Income Is Presented
For the Quarter-to-date periods ended:
March 31, 2018
Amortization of defined benefit pension items:
Prior-service costs	$	1		(2)	Salaries and Employee Benefits
Actuarial gains/(losses)	(60		)	(2)	Salaries and Employee Benefits
	(59		)		Total before Tax
	14				Provision for Income Taxes
	$	(45	)		Net of Tax
Total reclassifications for the period	$	(45	)		Net of Tax
March 31, 2017
Amortization of defined benefit pension items:
Prior-service costs	$	3		(2)	Salaries and Employee Benefits
Actuarial gains/(losses)	(178		)	(2)	Salaries and Employee Benefits
	(175		)		Total before Tax
	68				Provision for Income Taxes
	$	(107	)		Net of Tax
Total reclassifications for the period	$	(107	)		Net of Tax

(1) Amounts in parentheses indicate debits to profit/loss.

(2) These accumulated other comprehensive income components are included in the computation of net periodic pension cost.

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Stock Based Compensation

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock Based Compensation

STOCK BASED COMPENSATION (Dollars In Thousands, Except Share and Per Share Amounts)

Arrow has established three stock based compensation plans: an Incentive and Non-qualified Stock Option Plan (Long Term Incentive Plan), an Employee Stock Purchase Plan (ESPP) and an Employee Stock Ownership Plan (ESOP). All share and per share data have been adjusted for the September 28, 20173% stock dividend.

Long Term Incentive Plan

The Long Term Incentive Plan provides for the grant of incentive stock options, non-qualified stock options, restricted stock, restricted stock units, performance units and performance shares. The compensation committee of the Board of Directors administers the Long Term Incentive Plan.

Stock Options - Options may be granted at a price no less than the greater of the par value or fair market value of such shares on the date on which such option is granted, and generally expire ten years from the date of grant.  The options usually vest over a four-year period.

The following table presents the roll forward of stock options issued pursuant to the Long Term Incentive Plan by Shares and Weighted Average Exercise Prices.

Roll-Forward of Shares Outstanding:
Outstanding at January 1, 2018	346,155
Granted	55,188
Exercised	(27,662		)
Forfeited	—
Outstanding at March 31, 2018	373,681
Exercisable at Period-End	247,333
Vested and Expected to Vest	126,348
Roll-Forward of Shares Outstanding - Weighted Average Exercise Price:
Outstanding at January 1, 2018	$	24.12
Granted	30.85
Exercised	22.03
Forfeited	—
Outstanding at March 31, 2018	25.27
Exercisable at Period-End	22.57
Vested and Expected to Vest	30.54
Schedule of Other Long Term Incentive Plan Information
Grants Issued During 2018 - Weighted Average Information:
Fair Value	$	5.76
Fair Value Assumptions:
Dividend Yield	2.98		%
Expected Volatility	21.55		%
Risk Free Interest Rate	2.68		%
Expected Lives (in years)	6.98

Restricted Stock Units - The Company grants restricted stock units which gives the recipient the right to receive shares of Company stock upon vesting. The fair value of each restricted stock unit is the market value of Company stock on the date of grant. 100% of the restricted stock unit awards vest three years from the grant date. Once vested, the restricted stock units become vested units. Unvested restricted stock unit awards will generally be forfeited if the recipient ceases to be employed by the Company, with limited exceptions.

The following table presents the roll forward of restricted stock units by units and weighted average grant-date fair value.

Roll-Forward of Restricted Stock Units
Non-vested at January 1, 2018	—
Granted	3,279
Vested	—
Canceled	—
Non-vested at March 31, 2018	3,279
Roll-Forward of Non-vested Restricted Stock Units - Weighted Average Fair Value:
Non-vested at January 1, 2018	$	—
Granted	33.55
Vested	—
Canceled	—
Non-vested at March 31, 2018	33.55

The following table presents information on the amounts expensed for the periods ended March 31, 2018 and 2017:

Share-Based Compensation Expense
	For the Three Months Ended March 31,
	2018		2017
Share-Based Compensation Expense	$	89	$	83

Employee Stock Purchase Plan

Arrow sponsors an ESPP under which employees purchase Arrow's common stock at a 5% discount below market price. Under current accounting guidance, a stock purchase plan with a discount of 5% or less is not considered a compensatory plan.

Employee Stock Ownership Plan

Arrow maintains an ESOP.  Substantially all employees of Arrow and its subsidiaries are eligible to participate upon satisfaction of applicable service requirements.  The ESOP borrowed funds from one of Arrow’s subsidiary banks to purchase outstanding shares of Arrow’s common stock.  The notes require annual payments of principal and interest through 2018.  As the debt is repaid, shares are released from collateral based on the proportion of debt paid to total debt outstanding for the year and allocated to active employees.  In addition, the Company makes additional cash contributions to the Plan each year.

Shares pledged as collateral are reported as unallocated ESOP shares in stockholders' equity. As shares are released from collateral, Arrow reports compensation expense equal to the current average market price of the shares, and the shares become outstanding for earnings per share computations.

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Retirement Plans

3 Months Ended

Mar. 31, 2018

Defined Benefit Plan [Abstract]

Retirement Plans

RETIREMENT PLANS (Dollars in Thousands)

Arrow sponsors qualified and nonqualified defined benefit pension plans and other postretirement benefit plans for its employees. Arrow maintains a non-contributory pension plan, which covers substantially all employees.  Effective December 1, 2002, all active participants in the qualified defined benefit pension plan were given a one-time irrevocable election to continue participating in the traditional plan design, for which benefits were based on years of service and the participant’s final compensation (as defined), or to begin participating in the new cash balance plan design.  All employees who participate in the plan after December 1, 2002 automatically participate in the cash balance plan design.  The interest credits under the cash balance plan are based on the 30-year U.S. Treasury rate in effect for November of the prior year.  The service credits under the cash balance plan are equal to 6.0% of eligible salaries for employees who become participants on or after January 1, 2003.  For employees in the plan prior to January 1, 2003, the service credits are scaled based on the age of the participant, and range from 6.0% to 12.0%.  The funding policy is to contribute up to the maximum amount that can be deducted for federal income tax purposes and to make all payments required under ERISA.  Arrow also maintains a supplemental non-qualified unfunded retirement plan to provide eligible employees of Arrow and its subsidiaries with benefits in excess of qualified plan limits imposed by federal tax law.

Arrow has multiple non-pension postretirement benefit plans.  The health care, dental and life insurance plans are contributory, with participants’ contributions adjusted annually.  Arrow’s policy is to fund the cost of postretirement benefits based on the current cost of the underlying policies.  However, the health care plan provision for automatic increases of Company contributions each year is based on the increase in inflation and is limited to a maximum of 5%.  

As of December 31, 2016, Arrow updated its mortality assumption to the RP-2014 Mortality Table for annuitants and non-annuitants with projected generational mortality improvements using Scale MP-2016. The revised assumption resulted in a decrease in postretirement liabilities.

The following tables provide the components of net periodic benefit costs for the three month periods ended March 31, 2018 and 2017.

				Select
	Employees'			Executive		Postretirement
	Pension			Retirement		Benefit
	Plan			Plan		Plans
Net Periodic Benefit Cost
For the Three Months Ended March 31, 2018:
Service Cost 1	$	348		$	11	$	33
Interest Cost 2	525			50		99
Expected Return on Plan Assets 2	(785		)	—		—
Amortization of Prior Service (Credit) Cost 2	(12		)	14		(3		)
Amortization of Net Loss 2	33			33		(6		)
Net Periodic Benefit Cost	$	109		$	108	$	123
Plan Contributions During the Period	$	—		$	116	$	17
For the Three Months Ended March 31, 2017:
Service Cost 1	$	350		$	10	$	37
Interest Cost 2	350			50		86
Expected Return on Plan Assets 2	(800		)	—		—
Amortization of Prior Service (Credit) Cost 2	(14		)	14		(3		)
Amortization of Net Loss 2	148			30		—
Net Periodic Benefit Cost	$	34		$	104	$	120
Plan Contributions During the Period	$	—		$	113	$	53

Footnotes:

1. Included in Salaries and Employee Benefits on the Consolidated Statements of Income

2. Included in Other Operating Expense on the Consolidated Statements of Income

We are not required to make a contribution to the qualified pension plan in 2018, and currently, we do not expect to make additional contributions in 2018. Arrow makes contributions to its other post-retirement benefit plans in an amount equal to benefit payments for the year.

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Earnings Per Common Share

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Earnings Per Common Share

EARNINGS PER COMMON SHARE (In Thousands, Except Per Share Amounts)

The following table presents a reconciliation of the numerator and denominator used in the calculation of basic and diluted earnings per common share (“EPS”) for periods ended March 31, 2018 and 2017.  All share and per share amounts have been adjusted for the September 28, 20173% stock dividend.

Earnings Per Share
	Quarterly Period Ended:
	March 31, 2018		March 31, 2017
Earnings Per Share - Basic:
Net Income	$	8,531	$	6,631
Weighted Average Shares - Basic	13,936		13,889
Earnings Per Share - Basic	$	0.61	$	0.48
Earnings Per Share - Diluted:
Net Income	$	8,531	$	6,631
Weighted Average Shares - Basic	13,936		13,889
Dilutive Average Shares Attributable to Stock Options	80		112
Weighted Average Shares - Diluted	14,016		14,001
Earnings Per Share - Diluted	$	0.61	$	0.47

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Fair Value of Financial Instruments

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

FAIR VALUE OF FINANCIAL INSTRUMENTS (In Thousands)

FASB ASC Subtopic 820-10 defines fair value, establishes a framework for measuring fair value in GAAP and requires certain disclosures about fair value measurements. We do not have any nonfinancial assets or liabilities measured at fair value on a recurring basis. The only assets or liabilities that Arrow measured at fair value on a recurring basis at March 31, 2018 were securities available-for-sale and equity securities and for December 31, 2017 and March 31, 2017 securities available-for-sale. Arrow held no securities or liabilities for trading on such dates.

The table below presents the financial instrument's fair value and the amounts within the fair value hierarchy based on the lowest level of input that is significant to the fair value measurement:

Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis
			Fair Value Measurements at Reporting Date Using:
	Fair Value		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Life-to-Date Gains (Losses)
Fair Value of Assets and Liabilities Measured on a Recurring Basis:
March 31, 2018
Securities Available-for Sale:
U.S. Government & Agency Obligations	$	59,657	$	59,657	$	—	$	—
State and Municipal Obligations	9,743		—		9,743		—
Mortgage-Backed Securities	235,389		—		235,389		—
Corporate and Other Debt Securities	800		—		800		—
Total Securities Available-for-Sale	305,589		59,657		245,932		—
Equity Securities	1,579		—		1,579		—
Total Securities Measured on a Recurring Basis	$	307,168	$	59,657	$	247,511	$	—
December 31, 2017
Securities Available-for Sale:
U.S. Government & Agency Obligations	$	59,894	$	59,894	$	—	$	—
State and Municipal Obligations	10,349		—		10,349		—
Mortgage-Backed Securities	227,596		—		227,596		—
Corporate and Other Debt Securities	800		—		800		—
Equity Securities	1,561		—		1,561		—
Total Securities Available-for Sale	$	300,200	$	59,894	$	240,306	$	—
March 31, 2017
Securities Available-for Sale:
U.S. Government & Agency Obligations	$	147,231	$	54,695	$	92,536	$	—
State and Municipal Obligations	25,507		—		25,507		—
Mortgage-Backed Securities	169,728		—		169,728		—
Corporate and Other Debt Securities	3,298		—		3,298		—
Equity Securities	1,395		—		1,395		—
Total Securities Available-for Sale	$	347,159	$	54,695	$	292,464	$	—
Fair Value of Assets and Liabilities Measured on a Nonrecurring Basis:
March 31, 2018
Collateral Dependent Impaired Loans	$	1,295	$	—	$	—	$	1,295	$	(58	)
Other Real Estate Owned and Repossessed Assets, Net	1,647		—		—		1,647		(582		)
December 31, 2017
Collateral Dependent Impaired Loans	$	—	$	—	$	—	$	—	$	—
Other Real Estate Owned and Repossessed Assets, Net	$	1,847	$	—	—		1,847		$	(569	)
March 31, 2017
Collateral Dependent Impaired Loans	$	288	$	—	$	—	$	288	$	(34	)
Other Real Estate Owned and Repossessed Assets, Net	1,734		—		—		1,734		(500		)

We determine the fair value of financial instruments under the following hierarchy:

• Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;

• Level 2 - Quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability;

• Level 3 - Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity).

There were no transfers between Levels 1, 2 and 3 for the three months ended March 31, 2018, December 31, 2017 and March 31, 2017.

Fair Value Methodology for Assets and Liabilities Measured on a Recurring Basis

The fair value of Level 1 securities available-for-sale are based on unadjusted, quoted market prices from exchanges in active markets. The fair value of Level 2 securities available-for-sale are based on an independent bond and equity pricing service for identical assets or significantly similar securities and an independent equity pricing service for equity securities not actively traded.  The pricing services use a variety of techniques to arrive at fair value including market maker bids, quotes and pricing models.  Inputs to the pricing models include recent trades, benchmark interest rates, spreads and actual and projected cash flows.  

Fair Value Methodology for Assets and Liabilities Measured on a Nonrecurring Basis

The fair value of collateral dependent impaired loans and other real estate owned was based on third-party appraisals less estimated cost to sell. The appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. Other assets which might have been included in this table include mortgage servicing rights, goodwill and other intangible assets. Arrow evaluates each of these assets for impairment on an annual basis, with no impairment recognized for these assets at March 31, 2018, December 31, 2017 and March 31, 2017.

Fair Value Methodology for Financial Instruments Not Measured on a Recurring or Nonrecurring Basis

Securities held-to-maturity are fair valued utilizing an independent bond pricing service for identical assets or significantly similar securities.  The pricing service uses a variety of techniques to arrive at fair value including market maker bids, quotes and pricing models.  Inputs to the pricing models include recent trades, benchmark interest rates, spreads and actual and projected cash flows.

ASU 2016-01 "Recognition and Measurement of Financial Assets and Financial Liabilities" requires that, effective for the first quarter of 2018, the fair value for loans must be disclosed using the "exit price" notion which is a reasonable estimate of what another party might pay in an orderly transaction. Fair values for loans are calculated for portfolios of loans with similar financial characteristics.  Loans are segregated by type such as commercial, commercial real estate, residential mortgage, indirect auto and other consumer loans.  Each loan category is further segmented into fixed and adjustable interest rate terms and by performing and nonperforming categories.  The fair value of performing loans is calculated by determining the estimated future cash flow, which is the contractual cash flow adjusted for estimated prepayments. The discount rate is determined by starting with current market yields, and first adjusting for a liquidity premium. This premium is separately determined for residential real estate loans vs. other loans. Then a credit loss component is determined utilizing the credit loss assumptions used in the allowance for loan and lease loss model. Finally, a discount spread is applied separately for consumer loans vs. commercial loans based on market information and utilization of the Swap Curve.  Fair value for nonperforming loans is generally based on recent external appraisals.  If appraisals are not available, estimated cash flows are discounted using a rate commensurate with the risk associated with the estimated cash flows.  Assumptions regarding credit risk, cash flows and discount rates are judgmentally determined using available market information and specific borrower information.

The fair value of time deposits is based on the discounted value of contractual cash flows, except that the fair value is limited to the extent that the customer could redeem the certificate after imposition of a premature withdrawal penalty.  The discount rates are estimated using the Federal Home Loan Bank of New York ("FHLBNY") yield curve, which is considered representative of Arrow’s time deposit rates. The fair value of all other deposits is equal to the carrying value.

The fair value of FHLBNY advances is estimated based on the discounted value of contractual cash flows.  The discount rate is estimated using current rates on FHLBNY advances with similar maturities and call features.

The book value of the outstanding trust preferred securities (Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts) are considered to approximate fair value since the interest rates are variable (indexed to LIBOR) and Arrow is well-capitalized.

Fair Value by Balance Sheet Grouping

The following table presents a summary of the carrying amount, the fair value or an amount approximating fair value and the fair value hierarchy of Arrow’s financial instruments:

Schedule of Fair Values by Balance Sheet Grouping
					Fair Value Hierarchy
	Book Value		Fair Value		Level 1		Level 2		Level 3
March 31, 2018
Cash and Cash Equivalents	$	100,272	$	100,272	$	100,272	$	—	$	—
Securities Available-for-Sale	305,589		305,589		—		305,589		—
Securities Held-to-Maturity	330,124		324,938		—		324,938		—
Equity Securities	1,579		1,579		—		1,579		—
Federal Home Loan Bank and Federal   Reserve Bank Stock	4,780		4,780		—		4,780		—
Net Loans	1,973,980		1,915,978		—		—		1,915,978
Accrued Interest Receivable	7,662		7,662		—		7,662		—
Deposits	2,411,273		2,402,122		—		2,402,122		—
Federal Funds Purchased and Securities   Sold Under Agreements to Repurchase	74,957		74,957		—		74,957		—
Federal Home Loan Bank Term Advances	45,000		44,484		—		44,484		—
Junior Subordinated Obligations Issued   to Unconsolidated Subsidiary Trusts	20,000		20,000		—		20,000		—
Accrued Interest Payable	361		361		—		361		—
December 31, 2017
Cash and Cash Equivalents	$	72,838	$	72,838	$	72,838	$	—	$	—
Securities Available-for-Sale	300,200		300,200		59,894		240,306		—
Securities Held-to-Maturity	335,907		335,901		—		335,901		—
Federal Home Loan Bank and Federal   Reserve Bank Stock	9,949		9,949		—		9,949		—
Net Loans	1,932,184		1,901,046		—		—		1,901,046
Accrued Interest Receivable	6,753		6,753		—		6,753		—
Deposits	2,245,116		2,236,548		—		2,236,548		—
Federal Funds Purchased and Securities   Sold Under Agreements to Repurchase	64,966		64,966		—		64,966		—
Federal Home Loan Bank Overnight Advances	105,000		105,000		—		105,000		—
Federal Home Loan Bank Term Advances	55,000		54,781		—		54,781		—
Junior Subordinated Obligations Issued   to Unconsolidated Subsidiary Trusts	20,000		20,000		—		20,000		—
Accrued Interest Payable	410		410		—		410		—
March 31, 2017
Cash and Cash Equivalents	$	64,803	$	64,803	$	64,803	$	—	$	—
Securities Available-for-Sale	347,159		347,159		54,695		292,464		—
Securities Held-to-Maturity	335,211		335,105		—		335,105		—
Federal Home Loan Bank and Federal   Reserve Bank Stock	6,826		6,826		—		6,826		—
Net Loans	1,793,589		1,773,895		—		—		1,773,895
Accrued Interest Receivable	7,530		7,530		—		7,530		—
Deposits	2,256,536		2,248,066		—		2,248,066		—
Federal Funds Purchased and Securities   Sold Under Agreements to Repurchase	32,035		32,035		—		32,035		—
Federal Home Loan Bank Overnight Advances	32,000		32,000		—		32,000		—
Federal Home Loan Bank Term Advances	55,000		55,130		—		55,130		—
Junior Subordinated Obligations Issued   to Unconsolidated Subsidiary Trusts	20,000		20,000		—		20,000		—
Accrued Interest Payable	240		240		—		240		—

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Accounting Policies Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2018

Accounting Policies [Abstract]

Management's Use of Estimates

Management’s Use of Estimates -The preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of income and expenses during the reporting period.  Our most significant estimate is the allowance for loan losses. Other estimates include the evaluation of other-than-temporary impairment of investment securities, goodwill impairment, pension and other postretirement liabilities and an analysis of a need for a valuation allowance for deferred tax assets. Actual results could differ from those estimates.

A material estimate that is particularly susceptible to significant change in the near term is the allowance for loan losses.  In connection with the determination of the allowance for loan losses, management obtains appraisals for properties.  The allowance for loan losses is management’s best estimate of probable loan losses incurred as of the balance sheet date.  While management uses available information to recognize losses on loans, future adjustments to the allowance for loan losses may be necessary based on changes in economic conditions.  

New Accounting Standards Updates

Recently Adopted and Recently Issued Accounting Standards

The following accounting standards have been adopted in the first quarter of 2018:

ASU 2016-01 "Recognition and Measurement of Financial Assets and Financial Liabilities" significantly changed the income statement impact of equity investments. For Arrow, the standard became effective for the first quarter of 2018, and requires that equity investments be measured at fair value, with changes in fair value measured in net income. The cumulative effect of the January 1, 2018 adoption was an increase to retained earnings of $331 thousand with a corresponding decrease to Accumulated Other Comprehensive Loss. For periods prior to January 1, 2018, equity securities were classified as available-for-sale and stated at fair value with unrealized gains and losses reported as a separate component of accumulated other comprehensive income, net of tax. ASU 2016-01 also emphasized the existing requirement to use exit prices to measure fair value for disclosure purposes and clarifies that entities not make use of a practicability exception in determining the fair value of loans. Accordingly, we refined the calculation used to determine the disclosed fair value of our loans as part of adopting this standard. See Note 9. Fair Value of Financial Instruments.

    ASU 2016-15, "Statement of Cash Flows (Topic 230) - Classification of Certain Cash Receipts and Cash Payments" will reduce existing diversity in practice with respect to eight specific cash flow issues. The amendment is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes the interim period. An entity that elects early adoption must adopt all of the amendments in the same period. The amendments in this update should be applied using a retrospective transition method to each period presented. Arrow adopted this ASU in the first quarter of 2018.

ASU 2017-01 "Business Combinations" defines when a set of assets and activities constitutes a business for the purposes of determining whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. Previously, the three elements required to be present in a business are inputs, processes, and outputs. The amendments in this update allow for a business to consist of inputs, processes, and the ability to create output. For Arrow, the standard became effective in the first quarter of 2018. This update had no effect on our accounting for acquisitions and dispositions of businesses.

ASU 2017-07 "Compensation-Retirement Benefits" improves the presentation of net periodic pension cost and net periodic post-retirement benefit cost by requiring that an employer disaggregate the service cost component from the other components of net benefit cost. The amendments also provide explicit guidance on how to present the service cost component and the other components of net benefit cost in the income statement and allow only the service cost component of net benefit cost to be eligible for capitalization. For Arrow, the standard became effective in the first quarter of 2018. In accordance with the practical expedient adoption method, for all periods presented Arrow used the amounts disclosed in the retirement plans footnote for the prior period retrospective reclassification of the non-service cost components out of salaries and benefits and into other operating expenses. The adoption of this change in accounting for pension costs did not have a material impact on our financial position or the results of operations.

ASU 2017-09 "Compensation-Stock Compensation" provides guidance about which changes to the terms and conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. The guidance highlights the requirements for applying modification accounting and the exception criteria relating to changes in share-based payment terms. For Arrow, the standard became effective in the first quarter of 2018. The adoption of this change in accounting for share-based payment awards did not have a material impact on our financial position or the results of operations in periods subsequent to its adoption.

ASU 2014-09 - "Revenue from Contracts with Customers (Topic 606)" clarifies the principles for recognizing revenue and supersedes most current revenue recognition guidance. The ASU is intended to clarify and converge the revenue recognition principles under current generally accepted accounting principles (GAAP) to streamline revenue recognition requirements in addition to expanding required revenue recognition disclosures. In August 2015, the Financial Accounting Standards Board (FASB) issued ASU 2015-14, Deferral of the Effective Date, which provides a one year deferral to the effective date, therefore, ASU 2014-09 is effective for public companies for annual periods, and interim periods within those annual periods, beginning on or after December 15, 2017. As such, the Company adopted ASU 2014-09 as of January 1, 2018 using the modified retrospective approach, and have identified the recognition of revenue related to specific types of fiduciary activities and specific types of revenue from insurance commissions to be in the scope of this guidance. Regarding fiduciary activities, under prior GAAP, revenue was recognized from settling client estates over the time period the work was performed. With the adoption of Topic 606, revenue will be recognized when the performance obligation is completed, which is when the settlement of the client estate is closed. This change will not have a material impact on our consolidated financial statements. Regarding revenue from property and casualty insurance policies in which the client elected to pay premiums in installments, under prior GAAP, revenue was recognized when the client premiums were billed. With the adoption of Topic 606, revenue is recognized when the performance obligation is substantially completed , i.e., when the insurance policy is issued. This change will not have a material impact to our consolidated financial statements. The adoption of Topic 606 related to the previously described fiduciary activity and insurance commission required a cumulative effect adjustment as of January 1, 2018 to decrease retained earnings by $102 thousand. Additional information related to net revenue generated from contracts with customers is as follows:

Revenue Recognition - Accounting Standard Codification ("ASC") Topic 606, Revenue from Contracts with Customers ("ASC Topic 606"), establishes principles for reporting information about the nature, amount, timing and uncertainty of revenue and cash flows arising from the entity's contracts to provide goods or services to customers. The core principle requires an entity to recognize revenue to depict the transfer of promised goods or services a customer in an amount that reflects the consideration to which the entity expects to receive in exchange for those goods or services as performance obligations are satisfied.

The majority of the Company's revenue-generating transactions are not subject to ASC Topic 606, including revenue generated from financial instruments, such as loans and investment securities which are presented in our consolidated income statements as components of net interest income. The following is a description of principal activities from which the Company generates its revenue from noninterest income sources that are within the scope of ASC Topic 606:

Income From Fiduciary Activities: represents revenue derived mainly through the management of client investments which is based on the market value of these assets and the fee schedule contained in the applicable account management agreement. Since the revenue is mainly based on the market value of assets, this amount can be volatile as financial markets increase and decrease based on various economic factors. The terms of the account management agreements generally specify that the performance obligations are completed each quarter. Accordingly, we mainly recognize revenue from fiduciary activities on a quarterly basis.

Fees for Other Services to Customers: represents general service fees for monthly deposit account maintenance and account activity plus fees from other deposit-based services. Revenue is recognized when the performance obligation is completed, which is generally on a monthly basis for account maintenance services, or upon the completion of a deposit-related transaction. Payment for such performance obligations are generally received at the time the performance obligations are satisfied.

Insurance Commissions: represents commissions and fees paid by insurance carriers for both property and casualty insurance policies, and for services performed for employment benefits clients. Revenue from our property and casualty business is recognized when our performance obligation is satisfied, which is generally the effective date of the bound coverage since there are no significant performance obligations remaining. Revenue from our employment benefit brokerage business is recognized when our benefit servicing performance obligations are satisfied, generally on a monthly basis.

The following accounting standards have been issued and become effective for the Company at a future date:

ASU 2016-02 "Leases" will require the recognition of operating leases. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). ASU 2016-02 requires lessees to recognize right of use assets and lease liabilities on the balance sheet for all leases with terms longer than 12 months. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize a right of use asset and lease liability. Additionally, when measuring assets and liabilities arising from a lease, optional payments should be included only if the lessee is reasonably certain to exercise an option to extend the lease, exercise a purchase option or not exercise an option to terminate the lease. In January 2018, the FASB issued ASU 2018-01, Leases (Topic 842): Land Easement Practical Expedient for Transition to Topic 842. ASU 2018-01 was issued to address concerns about the cost and complexity of complying with the transition provisions of ASU 2018-01. Early adoption is permitted in any interim or annual period. For Arrow, the standard becomes effective in the first quarter of 2019. We do not expect that the adoption of this change in accounting for operating leases will have a material impact on our financial position or the results of operations in periods subsequent to its adoption. As of March 31, 2018, we have less than $2.2 million in minimum lease payments for existing operating leases of branch and insurance locations with varying expiration dates from 2018 to 2031.

ASU 2016-13 "Financial Instruments - Credit Losses" will change the way we and other financial entities recognize losses on credit instruments, primarily loans and available-for-sale securities. Currently, loan losses are recognized using an "incurred loss" methodology that delays recognition until it is probable a loss has been incurred. Under the ASU, the incurred loss model will be replaced with a methodology that reflects current expected credit losses (CECL) over the life of the instrument and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. Currently, credit losses on available-for-sale securities reduce the carrying value of the instrument and cannot be reversed. Under the ASU, the amount of the credit loss is carried as a valuation allowance and can be reversed. For Arrow, the standard is effective for the first quarter of 2020 and early adoption is allowed in 2019. We plan on adopting the standard in the first quarter of 2020, in order to maximize the accumulation of data needed to calculate the new CECL methodologies. The ASU describes several acceptable methodologies for calculating expected losses on a loan or a pool of loans. Although other methodologies are allowed, we plan on only using the methodologies described in the ASU. Arrow is still evaluating criteria for loan segments and the appropriate methodology for each segment. We expect that the use of the CECL methodology will result in higher levels of the allowance for loan losses than the incurred loss model. The initial adjustment will not be reported in earnings, but as the cumulative effect of a change in accounting principle. We expect that the adoption of the new standard will have a material impact on the level of the allowance for loan losses, but we do not expect that the periodic provision for loan losses to be materially higher than our historic amounts. The adoption of the standard will have an impact on shareholders’ equity, but we expect that we will remain well-capitalized under current regulatory calculations. The standard also requires new disclosures about the loan portfolio. Both the FASB and banking regulators have made estimates of the range of percentage increases in the allowance for loan losses. One FASB board member has commented that the initial range of 30% to 50% for increases in bank allowances is too high, and that the most likely range is in the single digits, although some institutions will experience higher increases. Due to our historical low level of loan losses and our current conservative underwriting standards, we believe that the increase in our loan loss allowance will be in the single digits. The FASB’s Transition Research Group for credit losses still has several outstanding unresolved questions, some of which may have a significant impact on CECL calculations. In 2016 we selected a third-party software product to calculate our CECL methodologies. We also began to accumulate a database of monthly loan data, beginning with June 2015, of the fields needed to make the loss calculations under the new CECL methodologies. During 2018, we plan on refining our loan segment criteria and, for most segments, we will calculate expected losses (for an expanding database) using two or more of the applicable methodologies before determining the most appropriate methodology for each loan segment or sub-segment.     

ASU 2017-04 "Intangibles-Goodwill and Other" changes the procedures for evaluating impairment of goodwill. Prior to the adoption of this standard, entities were required to perform procedures to determine the fair value of the underlying assets and liabilities following the guidance for determining the fair value of assets and liabilities in a business combination. This additional step to impairment testing has been eliminated. Under this standard, entities should perform goodwill impairment testing by comparing the fair value of a reporting unit to its carrying value. This change should reduce the cost and complexity of evaluating goodwill for impairment. For Arrow, the standard becomes effective in the first quarter of 2019, however, early adoption is permitted. This amendment will not affect our assessment of goodwill impairment since we currently perform the analysis of comparing carrying value to fair value of our reporting units that have goodwill and we have not had to perform a Step 2 Impairment Test to date.    

ASU 2017-08 "Receivables-Nonrefundable Fees and Other Costs" amends the amortization period for certain purchased callable debt securities held at a premium. This shortens the amortization period for the premium to the earliest call date. Under GAAP, entities generally amortize the premium as an adjustment of yield over the contractual life of the instrument. For Arrow, the standard becomes effective in the first quarter of 2019. We do not expect that the adoption of this change in accounting for certain callable debt securities will have a material impact on our financial position or the results of operations in periods subsequent to its adoption.

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Investment Securities (Tables)

3 Months Ended

Mar. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Available-For-Sale Securities

The following table is the schedule of Available-For-Sale Securities at March 31, 2018, December 31, 2017 and March 31, 2017:

Available-For-Sale Securities
	U.S. Government & Agency Obligations		State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Mutual Funds and Equity Securities		Total Available- For-Sale Securities
March 31, 2018
Available-For-Sale Securities,   at Amortized Cost	$	60,264	$	9,741	$	240,033	$	1,000	$	—	$	311,038
Available-For-Sale Securities,   at Fair Value	59,657		9,743		235,389		800		—		305,589
Gross Unrealized Gains	—		7		347		—		—		354
Gross Unrealized Losses	607		5		4,991		200		—		5,803
Available-For-Sale Securities,   Pledged as Collateral											229,857
Maturities of Debt Securities,   at Amortized Cost:
Within One Year	$	13,018	$	8,363	$	891	$	—			$	22,272
From 1 - 5 Years	47,246		650		121,977		—				169,873
From 5 - 10 Years	—		208		71,473		—				71,681
Over 10 Years	—		520		45,692		1,000				47,212
Maturities of Debt Securities,   at Fair Value:
Within One Year	$	12,949	$	8,360	$	896	$	—			$	22,205
From 1 - 5 Years	46,708		655		118,649		—				166,012
From 5 - 10 Years	—		208		70,140		—				70,348
Over 10 Years	—		520		45,704		800				47,024
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	17,128	$	7,421	$	112,078	$	—	$	—	$	136,627
12 Months or Longer	42,529		—		80,759		800		—		124,088
Total	$	59,657	$	7,421	$	192,837	$	800	$	—	$	260,715
Number of Securities in a   Continuous Loss Position	14		29		69		1		—		113
Unrealized Losses on   Securities in a Continuous   Loss Position:
Less than 12 Months	$	266	$	6	$	1,940	$	—	$	—	$	2,212
12 Months or Longer	341		—		3,050		200		—		3,591
Total	$	607	$	6	$	4,990	$	200	$	—	$	5,803
Disaggregated Details:
US Treasury Obligations,   at Amortized Cost	$	—
US Treasury Obligations, at Fair Value	—
US Agency Obligations, at Amortized Cost	60,264
US Agency Obligations, at Fair Value	59,657

Available-For-Sale Securities
	U.S. Government & Agency Obligations		State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Mutual Funds and Equity Securities		Total Available- For-Sale Securities
US Government Agency   Securities, at Amortized Cost					$	59,446
US Government Agency   Securities, at Fair Value					59,469
Government Sponsored Entity   Securities, at Amortized Cost					180,587
Government Sponsored Entity Securities, at Fair Value					175,920
December 31, 2017
Available-For-Sale Securities,   at Amortized Cost	$	60,328	$	10,351	$	229,077	$	1,000	$	1,120	$	301,876
Available-For-Sale Securities,   at Fair Value	59,894		10,349		227,596		800		1,561		300,200
Gross Unrealized Gains	—		9		485		—		441		935
Gross Unrealized Losses	434		11		1,966		200		—		2,611
Available-For-Sale Securities,   Pledged as Collateral,   at Fair Value											183,052
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	20,348	$	8,498	$	70,930	$	—	$	—	$	99,776
12 Months or Longer	39,546		—		80,759		800		—		121,105
Total	$	59,894	$	8,498	$	151,689	$	800	$	—	$	220,881
Number of Securities in a   Continuous Loss Position	14		36		55		1		—		106
Unrealized Losses on   Securities in a Continuous   Loss Position:
Less than 12 Months	$	172	$	11	$	363	$	—	$	—	$	546
12 Months or Longer	262		—		1,603		200		—		2,065
Total	$	434	$	11	$	1,966	$	200	$	—	$	2,611
Disaggregated Details:
US Treasury Obligations,   at Amortized Cost	$	—
US Treasury Obligations, at Fair Value	—
US Agency Obligations, at Amortized Cost	60,328
US Agency Obligations, at Fair Value	59,894
US Government Agency   Securities, at Amortized Cost					$	40,832
US Government Agency   Securities, at Fair Value					40,832
Government Sponsored Entity   Securities, at Amortized Cost					188,245
Government Sponsored Entity Securities, at Fair Value					186,764

Available-For-Sale Securities
	U.S. Government & Agency Obligations		State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Mutual Funds and Equity Securities		Total Available- For-Sale Securities
March 31, 2017
Available-For-Sale Securities,   at Amortized Cost	$	147,012	$	25,467	$	170,601	$	3,501	$	1,120	$	347,701
Available-For-Sale Securities,   at Fair Value	147,231		25,507		169,728		3,298		1,395		347,159
Gross Unrealized Gains	270		40		934		—		275		1,519
Gross Unrealized Losses	52		—		1,806		203		—		2,061
Available-For-Sale Securities,   Pledged as Collateral											295,797
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	42,937	$	828	$	127,931	$	2,498	$	—	$	174,194
12 Months or Longer	—		—		—		800		—		800
Total	$	42,937	$	828	$	127,931	$	3,298	$	—	$	174,994
Number of Securities in a   Continuous Loss Position	11		5		41		4		—		61
Unrealized Losses on Securities   in a Continuous Loss Position:
Less than 12 Months	$	52	$	—	$	1,806	$	3	$	—	$	1,861
12 Months or Longer	—		—		—		200		—		200
Total	$	52	$	—	$	1,806	$	203	$	—	$	2,061
Disaggregated Details:
US Treasury Obligations, at Amortized Cost	$	54,649
US Treasury Obligations, at Fair Value	$	54,695
US Agency Obligations, at Amortized Cost	$	92,363
US Agency Obligations, at Fair Value	92,536
US Government Agency   Securities, at Amortized Cost					$	1,616
US Government Agency   Securities, at Fair Value					1,625
Government Sponsored Entity   Securities, at Amortized Cost					168,985
Government Sponsored Entity Securities, at Fair Value					168,103

Held-To-Maturity Securities

The following table is the schedule of Held-To-Maturity Securities at March 31, 2018, December 31, 2017 and March 31, 2017:

Held-To-Maturity Securities
	State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Total Held-To Maturity Securities
March 31, 2018
Held-To-Maturity Securities,   at Amortized Cost	$	272,938	$	57,186	$	—	$	330,124
Held-To-Maturity Securities,   at Fair Value	268,605		56,333		—		324,938
Gross Unrealized Gains	646		—		—		646
Gross Unrealized Losses	4,979		853		—		5,832
Held-To-Maturity Securities,   Pledged as Collateral							307,273
Maturities of Debt Securities,   at Amortized Cost:
Within One Year	$	35,115	$	—	$	—	$	35,115
From 1 - 5 Years	81,312		51,243		—		132,555
From 5 - 10 Years	153,111		5,943		—		159,054
Over 10 Years	3,400		—		—		3,400
Maturities of Debt Securities,   at Fair Value:
Within One Year	$	35,160	$	—	$	—	$	35,160
From 1 - 5 Years	81,634		50,490		—		132,124
From 5 - 10 Years	148,412		5,843		—		154,255
Over 10 Years	3,399		—		—		3,399
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	101,695	$	53,076	$	—	$	154,771
12 Months or Longer	65,012		3,257		—		68,269
Total	$	166,707	$	56,333	$	—	$	223,040
Number of Securities in a   Continuous Loss Position	495		47		—		542
Unrealized Losses on Securities    in a Continuous Loss Position:
Less than 12 Months	$	1,981	$	767	$	—	$	2,748
12 Months or Longer	2,998		86		—		3,084
Total	$	4,979	$	853	$	—	$	5,832
Disaggregated Details:
US Government Agency   Securities, at Amortized Cost			$	2,530
US Government Agency   Securities, at Fair Value			2,483
Government Sponsored Entity   Securities, at Amortized Cost			54,656
Government Sponsored Entity Securities, at Fair Value			53,850

Held-To-Maturity Securities
	State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Total Held-To Maturity Securities
December 31, 2017
Held-To-Maturity Securities,   at Amortized Cost	$	275,530	$	60,377	$	—	$	335,907
Held-To-Maturity Securities,   at Fair Value	275,353		60,548		—		335,901
Gross Unrealized Gains	1,691		269		—		1,960
Gross Unrealized Losses	1,868		98		—		1,966
Held-To-Maturity Securities,   Pledged as Collateral							318,622
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	55,648	$	13,764	$	—	$	69,412
12 Months or Longer	65,152		3,257		—		68,409
Total	$	120,800	$	17,021	$	—	$	137,821
Number of Securities in a   Continuous Loss Position	352		14		—		366
Unrealized Losses on   Securities in a Continuous   Loss Position:
Less than 12 Months	$	442	$	56	$	—	$	498
12 Months or Longer	1,425		43		—		1,468
Total	$	1,867	$	99	$	—	$	1,966
Disaggregated Details:
US Government Agency   Securities, at Amortized Cost			$	2,680
US Government Agency   Securities, at Fair Value			2,661
Government Sponsored Entity   Securities, at Amortized Cost			57,697
Government Sponsored Entity Securities, at Fair Value			57,887
March 31, 2017
Held-To-Maturity Securities,   at Amortized Cost	$	263,642	$	71,569	$	—	$	335,211
Held-To-Maturity Securities,   at Fair Value	263,255		71,850		—		335,105
Gross Unrealized Gains	2,410		298		—		2,708
Gross Unrealized Losses	2,796		17		—		2,813
Held-To-Maturity Securities,   Pledged as Collateral							316,966
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	95,450	$	7,682	$	—	$	103,132
12 Months or Longer	657		—		—		657
Total	$	96,107	$	7,682	$	—	$	103,789
Number of Securities in a   Continuous Loss Position	251		8		—		259
Unrealized Losses on   Securities in a Continuous   Loss Position:
Less than 12 Months	$	2,793	$	17	$	—	$	2,810
12 Months or Longer	3		—		—		3
Total	$	2,796	$	17	$	—	$	2,813

Held-To-Maturity Securities
	State and Municipal Obligations	Mortgage- Backed Securities		Corporate and Other Debt Securities	Total Held-To Maturity Securities
March 31, 2017
Disaggregated Details:
US Government Agency   Securities, at Amortized Cost		$	3,106
US Government Agency   Securities, at Fair Value		3,121
Government Sponsored Entity   Securities, at Amortized Cost		68,463
Government Sponsored Entity Securities, at Fair Value		68,729

The following table is the schedule of Equity Securities at March 31, 2018. Upon the adoption of ASU 2016-01 effective January 1, 2018, Equity Securities are not included in Securities Available-For-Sale since unrealized gains and losses are now recorded in the Consolidated Statements of Income. Prior to January 1, 2018, Equity Securities were included in Securities Available-For-Sale.

Equity Securities
March 31, 2018
Equity Securities, at Fair Value	$	1,579

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Loans (Tables)

3 Months Ended

Mar. 31, 2018

Loans and Leases Receivable Disclosure [Abstract]

Past Due Financing Receivables

The following table presents loan balances outstanding as of March 31, 2018, December 31, 2017 and March 31, 2017 and an analysis of the recorded investment in loans that are past due at these dates.  Generally, Arrow considers an amortizing loan past due 30 or more days when the borrower is two payments past due. Loans held-for-sale of $171, $327 and $896 as of March 31, 2018, December 31, 2017 and March 31, 2017, respectively, are included in the residential real estate balances for current loans.

			Commercial
	Commercial		Real Estate		Consumer		Residential		Total
March 31, 2018
Loans Past Due 30-59 Days	$	45	$	156	$	3,673	$	1,711	$	5,585
Loans Past Due 60-89 Days	60		—		751		481		1,292
Loans Past Due 90 or more Days	41		807		252		321		1,421
Total Loans Past Due	146		963		4,676		2,513		8,298
Current Loans	127,528		454,095		621,964		781,152		1,984,739
Total Loans	$	127,674	$	455,058	$	626,640	$	783,665	$	1,993,037
Loans 90 or More Days Past Due   and Still Accruing Interest	$	—	$	—	$	—	$	—	$	—
Nonaccrual Loans	652		807		441		2,570		4,470
December 31, 2017
Loans Past Due 30-59 Days	$	139	$	—	$	5,891	$	2,094	$	8,124
Loans Past Due 60-89 Days	19		—		1,215		509		1,743
Loans Past Due 90 or more Days	99		807		513		1,422		2,841
Total Loans Past Due	257		807		7,619		4,025		12,708
Current Loans	128,992		443,441		595,208		770,421		1,938,062
Total Loans	$	129,249	$	444,248	$	602,827	$	774,446	$	1,950,770
Loans 90 or More Days Past Due   and Still Accruing Interest	$	—	$	—	$	6	$	313	$	319
Nonaccrual Loans	$	588	$	1,530	$	653	$	2,755	5,526
March 31, 2017
Loans Past Due 30-59 Days	$	189	$	—	$	3,882	$	2,021	$	6,092
Loans Past Due 60-89 Days	9		—		1,145		684		1,838
Loans Past Due 90 or more Days	120		—		335		835		1,290
Total Loans Past Due	318		—		5,362		3,540		9,220
Current Loans	118,524		435,316		546,601		701,144		1,801,585
Total Loans	$	118,842	$	435,316	$	551,963	$	704,684	$	1,810,805
Loans 90 or More Days Past Due   and Still Accruing Interest	$	—	$	—	$	—	$	—	$	—
Nonaccrual Loans	$	144	$	870	$	656	$	2,603	4,273

Allowance for Credit Losses on Financing Receivables

The following table presents a roll-forward of the allowance for loan losses and other information pertaining to the allowance for loan losses:

Allowance for Loan Losses
				Commercial
	Commercial			Real Estate			Consumer			Residential			Total
Roll-forward of the Allowance for Loan Losses for the Quarterly Periods:
December 31, 2017	$	1,873		$	4,504		$	7,604		$	4,605		$	18,586
Charge-offs	(16		)	1			(347		)	(8		)	(370		)
Recoveries	—			9			86			—			95
Provision	311			(151		)	676			(90		)	746
March 31, 2018	$	2,168		$	4,363		$	8,019		$	4,507		$	19,057
December 31, 2016	$	1,017		$	5,677		$	6,120		$	4,198		$	17,012
Charge-offs	(16		)	—			(254		)	—			(270		)
Recoveries	7			—			109			—			116
Provision	(69		)	(228		)	727			(72		)	358
March 31, 2017	$	939		$	5,449		$	6,702		$	4,126		$	17,216

Allowance for Loan Losses
			Commercial
	Commercial		Real Estate		Consumer		Residential		Total
March 31, 2018
Allowance for loan losses - Loans Individually Evaluated for Impairment	$	92	$	42	$	—	$	58	$	192
Allowance for loan losses - Loans Collectively Evaluated for Impairment	2,076		4,321		8,019		4,449		18,865
Ending Loan Balance - Individually Evaluated for Impairment	489		815		91		1,564		2,959
Ending Loan Balance - Collectively Evaluated for Impairment	$	127,185	$	454,243	$	626,549	$	782,101	$	1,990,078
December 31, 2017
Allowance for loan losses - Loans Individually Evaluated for Impairment	$	94	$	2	$	—	$	10	$	106
Allowance for loan losses - Loans Collectively Evaluated for Impairment	1,779		4,502		7,604		4,595		18,480
Ending Loan Balance - Individually Evaluated for Impairment	489		1,537		95		1,562		3,683
Ending Loan Balance - Collectively Evaluated for Impairment	$	128,760	$	442,711	$	602,732	$	772,884	$	1,947,087
March 31, 2017
Allowance for loan losses - Loans Individually Evaluated for Impairment	$	—	$	34	$	—	$	—	$	34
Allowance for loan losses - Loans Collectively Evaluated for Impairment	939		5,415		6,702		4,126		17,182
Ending Loan Balance - Individually Evaluated for Impairment	—		884		88		1,094		2,066
Ending Loan Balance - Collectively Evaluated for Impairment	$	118,841	$	434,432	$	551,876	$	703,590	$	1,808,739

Financing Receivable Credit Quality Indicators

The following table presents the credit quality indicators by loan category at March 31, 2018, December 31, 2017 and March 31, 2017:

Loan Credit Quality Indicators
			Commercial
	Commercial		Real Estate		Consumer		Residential		Total
March 31, 2018
Credit Risk Profile by Creditworthiness Category:
Satisfactory	$	107,838	$	430,121	$	—	$	—	$	537,959
Special Mention	17,220		611		—		—		17,831
Substandard	2,615		23,521		—		—		26,136
Doubtful	—		807		—		—		807
Credit Risk Profile Based on Payment Activity:
Performing	$	—	$	—	$	626,198	$	781,095	$	1,407,293
Nonperforming	—		—		441		2,570		3,011
December 31, 2017
Credit Risk Profile by Creditworthiness Category:
Satisfactory	$	124,961	$	417,362	$	—	$	—	$	542,323
Special Mention	1,341		177		—		—		1,518
Substandard	2,947		25,902		—		—		28,849
Doubtful	—		807		—		—		807
Credit Risk Profile Based on Payment Activity:
Performing	$	—	$	—	$	602,168	$	771,584	$	1,373,752
Nonperforming	—		—		659		3,068		3,727
March 31, 2017
Credit Risk Profile by Creditworthiness Category:
Satisfactory	$	109,416	$	402,266	$	—	$	—	$	511,682
Special Mention	1,349		2,233		—		—		3,582
Substandard	8,077		30,817		—		—		38,894
Doubtful	—		—		—		—		—
Credit Risk Profile Based on Payment Activity:
Performing	$	—	$	—	$	551,307	$	702,081	$	1,253,388
Nonperforming	—		—		656		2,603		3,259

Impaired Financing Receivables

The following table presents information on impaired loans based on whether the impaired loan has a recorded related allowance or has no recorded related allowance:

Impaired Loans
			Commercial
	Commercial		Real Estate		Consumer		Residential		Total
March 31, 2018
Recorded Investment:
With No Related Allowance	$	—	$	8	$	90	$	1,276	$	1,374
With a Related Allowance	483		783		—		356		1,622
Unpaid Principal Balance:
With No Related Allowance	—		8		90		1,279		1,377
With a Related Allowance	489		807		—		286		1,582
December 31, 2017
Recorded Investment:
With No Related Allowance	$	—	$	781	$	94	$	1,269	$	2,144
With a Related Allowance	485		725		—		333		1,543
Unpaid Principal Balance:
With No Related Allowance	—		816		95		1,274		2,185
With a Related Allowance	489		721		—		288		1,498
March 31, 2017
Recorded Investment:
With No Related Allowance	$	—	$	884	$	88	$	806	$	1,778
With a Related Allowance	—		—		—		288		288
Unpaid Principal Balance:
With No Related Allowance	—		884		88		806		$	1,778
With a Related Allowance	—		—		—		288		288
For the Quarter Ended:
March 31, 2018
Average Recorded Balance:
With No Related Allowance	$	—	$	395	$	92	$	1,273	$	1,760
With a Related Allowance	484		754		—		345		1,583
Interest Income Recognized:
With No Related Allowance	—		—		—		16		16
With a Related Allowance	—		—		—		24		24
Cash Basis Income:
With No Related Allowance	—		—		—		—		—
With a Related Allowance	—		—		—		—		—
March 31, 2017
Average Recorded Balance:
With No Related Allowance	$	—	$	887	$	90	$	952	$	1,929
With a Related Allowance	—		—		—		144		144
Interest Income Recognized:
With No Related Allowance	—		—		1		—		1
With a Related Allowance	—		—		—		—		—
Cash Basis Income:
With No Related Allowance	—		—		—		—		—
With a Related Allowance	—		—		—		—		—

Troubled Debt Restructurings on Financing Receivables

The following table presents information on loans modified in trouble debt restructurings during the periods indicated.

Loans Modified in Trouble Debt Restructurings During the Period
			Commercial
	Commercial		Real Estate		Consumer		Residential		Total
For the Quarter Ended:
March 31, 2018
Number of Loans	—		—		1		—		1
Pre-Modification Outstanding Recorded Investment	$	—	$	—	$	3	$	—	$	3
Post-Modification Outstanding Recorded Investment	—		—		3		—		3
Subsequent Default, Number of Contracts	—		—		—		—		—
Subsequent Default, Recorded Investment	—		—		—		—		—
March 31, 2017
Number of Loans	—		—		2		—		2
Pre-Modification Outstanding Recorded Investment	$	—	$	—	$	15	$	—	$	15
Post-Modification Outstanding Recorded Investment	—		—		15		—		15
Subsequent Default, Number of Contracts	—		—		—		—		—
Subsequent Default, Recorded Investment	—		—		—		—		—

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Guarantees (Tables)

3 Months Ended

Mar. 31, 2018

Guarantees [Abstract]

Schedule of Guarantor Obligations

The following table presents the notional amount and fair value of Arrow's off-balance sheet commitments to extend credit and commitments under standby letters of credit as of March 31, 2018, December 31, 2017 and March 31, 2017:

Commitments to Extend Credit and Letters of Credit
	March 31, 2018		December 31, 2017		March 31, 2017
Notional Amount:
Commitments to Extend Credit	$	328,774	$	315,256	$	294,618
Standby Letters of Credit	3,584		3,526		3,371
Fair Value:
Commitments to Extend Credit	$	—	$	—	$	—
Standby Letters of Credit	24		23		28

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Comprehensive Income (Tables)

3 Months Ended

Mar. 31, 2018

Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Comprehensive Income

The following table presents the components of other comprehensive income for the three-month periods ended March 31, 2018 and 2017:

Schedule of Comprehensive Income
	Three Months Ended March 31,
				Tax
	Before-Tax			(Expense)			Net-of-Tax
	Amount			Benefit			Amount
2018
Net Unrealized Securities Holding Losses on Securities Available-for-Sale Arising During the Period	(3,332		)	$	847		(2,485		)
Amortization of Net Retirement Plan Actuarial Loss	60			(14		)	46
Accretion of Net Retirement Plan Prior Service Credit	(1		)	—			(1		)
Other Comprehensive Loss	$	(3,273	)	$	833		$	(2,440	)
2017
Net Unrealized Securities Holding Gains on Securities Available-for-Sale Arising During the Period	77			$	(30	)	47
Amortization of Net Retirement Plan Actuarial Loss	178			(69		)	109
Accretion of Net Retirement Plan Prior Service Credit	(3		)	1			(2		)
Other Comprehensive Income	$	252		$	(98	)	$	154

Changes in Accumulated Other Comprehensive Income By Component

The following table presents the changes in accumulated other comprehensive income by component:

Changes in Accumulated Other Comprehensive Income (Loss) by Component (1)
	Unrealized			Defined Benefit Plan Items
	Gains and
	Losses on						Net Prior
	Available-for-			Net Gain			Service
	Sale Securities			(Loss)			(Cost ) Credit			Total
For the Quarter-To-Date periods ended:
December 31, 2017	$	(1,250	)	$	(6,380	)	$	(884	)	$	(8,514	)
Other comprehensive income or loss before reclassifications	(2,485		)	—			—			(2,485		)
Amounts reclassified from accumulated other comprehensive income	—			46			(1		)	45
Net current-period other comprehensive income (loss)	(2,485		)	46			(1		)	(2,440		)
Reclassification due to the adoption of ASU 2016-01	(331		)							(331		)
March 31, 2018	$	(4,066	)	$	(6,334	)	$	(885	)	$	(11,285	)
December 31, 2016	$	(382	)	$	(5,737	)	$	(715	)	$	(6,834	)
Other comprehensive income or loss before reclassifications	47			—			—			47
Amounts reclassified from accumulated other comprehensive income	—			109			(2		)	107
Net current-period other comprehensive income (loss)	47			109			(2		)	154
March 31, 2017	$	(335	)	$	(5,628	)	$	(717	)	$	(6,680	)

(1) All amounts are net of tax. Amounts in parentheses indicate debits.

Reclassification out of Accumulated Other Comprehensive Income

The following table presents the reclassifications out of accumulated other comprehensive income:

Reclassifications Out of Accumulated Other Comprehensive Income (1)
	Amounts Reclassified
Details about Accumulated Other	from Accumulated Other				Affected Line Item in the Statement
Comprehensive Income (Loss) Components	Comprehensive Income				Where Net Income Is Presented
For the Quarter-to-date periods ended:
March 31, 2018
Amortization of defined benefit pension items:
Prior-service costs	$	1		(2)	Salaries and Employee Benefits
Actuarial gains/(losses)	(60		)	(2)	Salaries and Employee Benefits
	(59		)		Total before Tax
	14				Provision for Income Taxes
	$	(45	)		Net of Tax
Total reclassifications for the period	$	(45	)		Net of Tax
March 31, 2017
Amortization of defined benefit pension items:
Prior-service costs	$	3		(2)	Salaries and Employee Benefits
Actuarial gains/(losses)	(178		)	(2)	Salaries and Employee Benefits
	(175		)		Total before Tax
	68				Provision for Income Taxes
	$	(107	)		Net of Tax
Total reclassifications for the period	$	(107	)		Net of Tax

(1) Amounts in parentheses indicate debits to profit/loss.

(2) These accumulated other comprehensive income components are included in the computation of net periodic pension cost.

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Stock Based Compensation (Tables)

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award

The following table presents the roll forward of restricted stock units by units and weighted average grant-date fair value.

Roll-Forward of Restricted Stock Units
Non-vested at January 1, 2018	—
Granted	3,279
Vested	—
Canceled	—
Non-vested at March 31, 2018	3,279
Roll-Forward of Non-vested Restricted Stock Units - Weighted Average Fair Value:
Non-vested at January 1, 2018	$	—
Granted	33.55
Vested	—
Canceled	—
Non-vested at March 31, 2018	33.55

The following table presents the roll forward of stock options issued pursuant to the Long Term Incentive Plan by Shares and Weighted Average Exercise Prices.

Roll-Forward of Shares Outstanding:
Outstanding at January 1, 2018	346,155
Granted	55,188
Exercised	(27,662		)
Forfeited	—
Outstanding at March 31, 2018	373,681
Exercisable at Period-End	247,333
Vested and Expected to Vest	126,348
Roll-Forward of Shares Outstanding - Weighted Average Exercise Price:
Outstanding at January 1, 2018	$	24.12
Granted	30.85
Exercised	22.03
Forfeited	—
Outstanding at March 31, 2018	25.27
Exercisable at Period-End	22.57
Vested and Expected to Vest	30.54
Schedule of Other Long Term Incentive Plan Information
Grants Issued During 2018 - Weighted Average Information:
Fair Value	$	5.76
Fair Value Assumptions:
Dividend Yield	2.98		%
Expected Volatility	21.55		%
Risk Free Interest Rate	2.68		%
Expected Lives (in years)	6.98

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

The following table presents information on the amounts expensed for the periods ended March 31, 2018 and 2017:

Share-Based Compensation Expense
	For the Three Months Ended March 31,
	2018		2017
Share-Based Compensation Expense	$	89	$	83

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Retirement Plans (Tables)

3 Months Ended

Mar. 31, 2018

Defined Benefit Plan [Abstract]

Schedule of Defined Benefit Plans Disclosures

The following tables provide the components of net periodic benefit costs for the three month periods ended March 31, 2018 and 2017.

				Select
	Employees'			Executive		Postretirement
	Pension			Retirement		Benefit
	Plan			Plan		Plans
Net Periodic Benefit Cost
For the Three Months Ended March 31, 2018:
Service Cost 1	$	348		$	11	$	33
Interest Cost 2	525			50		99
Expected Return on Plan Assets 2	(785		)	—		—
Amortization of Prior Service (Credit) Cost 2	(12		)	14		(3		)
Amortization of Net Loss 2	33			33		(6		)
Net Periodic Benefit Cost	$	109		$	108	$	123
Plan Contributions During the Period	$	—		$	116	$	17
For the Three Months Ended March 31, 2017:
Service Cost 1	$	350		$	10	$	37
Interest Cost 2	350			50		86
Expected Return on Plan Assets 2	(800		)	—		—
Amortization of Prior Service (Credit) Cost 2	(14		)	14		(3		)
Amortization of Net Loss 2	148			30		—
Net Periodic Benefit Cost	$	34		$	104	$	120
Plan Contributions During the Period	$	—		$	113	$	53

Footnotes:

1. Included in Salaries and Employee Benefits on the Consolidated Statements of Income

2. Included in Other Operating Expense on the Consolidated Statements of Income

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Earnings Per Common Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table presents a reconciliation of the numerator and denominator used in the calculation of basic and diluted earnings per common share (“EPS”) for periods ended March 31, 2018 and 2017.  All share and per share amounts have been adjusted for the September 28, 20173% stock dividend.

Earnings Per Share
	Quarterly Period Ended:
	March 31, 2018		March 31, 2017
Earnings Per Share - Basic:
Net Income	$	8,531	$	6,631
Weighted Average Shares - Basic	13,936		13,889
Earnings Per Share - Basic	$	0.61	$	0.48
Earnings Per Share - Diluted:
Net Income	$	8,531	$	6,631
Weighted Average Shares - Basic	13,936		13,889
Dilutive Average Shares Attributable to Stock Options	80		112
Weighted Average Shares - Diluted	14,016		14,001
Earnings Per Share - Diluted	$	0.61	$	0.47

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Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Fair Value Measurements, Recurring and Nonrecurring

The table below presents the financial instrument's fair value and the amounts within the fair value hierarchy based on the lowest level of input that is significant to the fair value measurement:

Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis
			Fair Value Measurements at Reporting Date Using:
	Fair Value		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Life-to-Date Gains (Losses)
Fair Value of Assets and Liabilities Measured on a Recurring Basis:
March 31, 2018
Securities Available-for Sale:
U.S. Government & Agency Obligations	$	59,657	$	59,657	$	—	$	—
State and Municipal Obligations	9,743		—		9,743		—
Mortgage-Backed Securities	235,389		—		235,389		—
Corporate and Other Debt Securities	800		—		800		—
Total Securities Available-for-Sale	305,589		59,657		245,932		—
Equity Securities	1,579		—		1,579		—
Total Securities Measured on a Recurring Basis	$	307,168	$	59,657	$	247,511	$	—
December 31, 2017
Securities Available-for Sale:
U.S. Government & Agency Obligations	$	59,894	$	59,894	$	—	$	—
State and Municipal Obligations	10,349		—		10,349		—
Mortgage-Backed Securities	227,596		—		227,596		—
Corporate and Other Debt Securities	800		—		800		—
Equity Securities	1,561		—		1,561		—
Total Securities Available-for Sale	$	300,200	$	59,894	$	240,306	$	—
March 31, 2017
Securities Available-for Sale:
U.S. Government & Agency Obligations	$	147,231	$	54,695	$	92,536	$	—
State and Municipal Obligations	25,507		—		25,507		—
Mortgage-Backed Securities	169,728		—		169,728		—
Corporate and Other Debt Securities	3,298		—		3,298		—
Equity Securities	1,395		—		1,395		—
Total Securities Available-for Sale	$	347,159	$	54,695	$	292,464	$	—
Fair Value of Assets and Liabilities Measured on a Nonrecurring Basis:
March 31, 2018
Collateral Dependent Impaired Loans	$	1,295	$	—	$	—	$	1,295	$	(58	)
Other Real Estate Owned and Repossessed Assets, Net	1,647		—		—		1,647		(582		)
December 31, 2017
Collateral Dependent Impaired Loans	$	—	$	—	$	—	$	—	$	—
Other Real Estate Owned and Repossessed Assets, Net	$	1,847	$	—	—		1,847		$	(569	)
March 31, 2017
Collateral Dependent Impaired Loans	$	288	$	—	$	—	$	288	$	(34	)
Other Real Estate Owned and Repossessed Assets, Net	1,734		—		—		1,734		(500		)

Fair Value, by Balance Sheet Grouping

The following table presents a summary of the carrying amount, the fair value or an amount approximating fair value and the fair value hierarchy of Arrow’s financial instruments:

Schedule of Fair Values by Balance Sheet Grouping
					Fair Value Hierarchy
	Book Value		Fair Value		Level 1		Level 2		Level 3
March 31, 2018
Cash and Cash Equivalents	$	100,272	$	100,272	$	100,272	$	—	$	—
Securities Available-for-Sale	305,589		305,589		—		305,589		—
Securities Held-to-Maturity	330,124		324,938		—		324,938		—
Equity Securities	1,579		1,579		—		1,579		—
Federal Home Loan Bank and Federal   Reserve Bank Stock	4,780		4,780		—		4,780		—
Net Loans	1,973,980		1,915,978		—		—		1,915,978
Accrued Interest Receivable	7,662		7,662		—		7,662		—
Deposits	2,411,273		2,402,122		—		2,402,122		—
Federal Funds Purchased and Securities   Sold Under Agreements to Repurchase	74,957		74,957		—		74,957		—
Federal Home Loan Bank Term Advances	45,000		44,484		—		44,484		—
Junior Subordinated Obligations Issued   to Unconsolidated Subsidiary Trusts	20,000		20,000		—		20,000		—
Accrued Interest Payable	361		361		—		361		—
December 31, 2017
Cash and Cash Equivalents	$	72,838	$	72,838	$	72,838	$	—	$	—
Securities Available-for-Sale	300,200		300,200		59,894		240,306		—
Securities Held-to-Maturity	335,907		335,901		—		335,901		—
Federal Home Loan Bank and Federal   Reserve Bank Stock	9,949		9,949		—		9,949		—
Net Loans	1,932,184		1,901,046		—		—		1,901,046
Accrued Interest Receivable	6,753		6,753		—		6,753		—
Deposits	2,245,116		2,236,548		—		2,236,548		—
Federal Funds Purchased and Securities   Sold Under Agreements to Repurchase	64,966		64,966		—		64,966		—
Federal Home Loan Bank Overnight Advances	105,000		105,000		—		105,000		—
Federal Home Loan Bank Term Advances	55,000		54,781		—		54,781		—
Junior Subordinated Obligations Issued   to Unconsolidated Subsidiary Trusts	20,000		20,000		—		20,000		—
Accrued Interest Payable	410		410		—		410		—
March 31, 2017
Cash and Cash Equivalents	$	64,803	$	64,803	$	64,803	$	—	$	—
Securities Available-for-Sale	347,159		347,159		54,695		292,464		—
Securities Held-to-Maturity	335,211		335,105		—		335,105		—
Federal Home Loan Bank and Federal   Reserve Bank Stock	6,826		6,826		—		6,826		—
Net Loans	1,793,589		1,773,895		—		—		1,773,895
Accrued Interest Receivable	7,530		7,530		—		7,530		—
Deposits	2,256,536		2,248,066		—		2,248,066		—
Federal Funds Purchased and Securities   Sold Under Agreements to Repurchase	32,035		32,035		—		32,035		—
Federal Home Loan Bank Overnight Advances	32,000		32,000		—		32,000		—
Federal Home Loan Bank Term Advances	55,000		55,130		—		55,130		—
Junior Subordinated Obligations Issued   to Unconsolidated Subsidiary Trusts	20,000		20,000		—		20,000		—
Accrued Interest Payable	240		240		—		240		—

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Accounting Policies (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Retained Earnings Adjustments [Line Items]
Operating leases (less than)	$ 2,200
Accounting Standards Update 2014-09
Retained Earnings Adjustments [Line Items]
Impact of Change in Accounting Policy		$ (102)

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Investment Securities Available for Sale (Details) $ in Thousands	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Mar. 31, 2017 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Securities, at Amortized Cost	$ 311,038	$ 301,876	$ 347,701
Available-for-Sale	305,589	300,200	347,159
Gross Unrealized Gains	354	935	1,519
Gross Unrealized Losses	5,803	2,611	2,061
Available-For-Sale Securities, Pledged as Collateral	229,857	183,052	295,797
Maturities of Debt Securities, at Amortized Cost:
Within One Year	22,272
From 1 - 5 Years	169,873
From 5 - 10 Years	71,681
Over 10 Years	47,212
Maturities of Debt Securities, at Fair Value:
Within One Year	22,205
From 1 - 5 Years	166,012
From 5 - 10 Years	70,348
Over 10 Years	47,024
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	136,627	99,776	174,194
12 Months or Longer	124,088	121,105	800
Total	$ 260,715	$ 220,881	$ 174,994
Number of Securities in a Continuous Loss Position	113	106	61
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 2,212	$ 546	$ 1,861
12 Months or Longer	3,591	2,065	200
Total	5,803	2,611	2,061
U.S. Agency Obligations
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Securities, at Amortized Cost	60,264	60,328	147,012
Available-for-Sale	59,657	59,894	147,231
Gross Unrealized Gains	0	0	270
Gross Unrealized Losses	607	434	52
Maturities of Debt Securities, at Amortized Cost:
Within One Year	13,018
From 1 - 5 Years	47,246
From 5 - 10 Years	0
Over 10 Years	0
Maturities of Debt Securities, at Fair Value:
Within One Year	12,949
From 1 - 5 Years	46,708
From 5 - 10 Years	0
Over 10 Years	0
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	17,128	20,348	42,937
12 Months or Longer	42,529	39,546	0
Total	$ 59,657	$ 59,894	$ 42,937
Number of Securities in a Continuous Loss Position	14	14	11
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 266	$ 172	$ 52
12 Months or Longer	341	262	0
Total	607	434	52
State and Municipal Obligations
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Securities, at Amortized Cost	9,741	10,351	25,467
Available-for-Sale	9,743	10,349	25,507
Gross Unrealized Gains	7	9	40
Gross Unrealized Losses	5	11	0
Maturities of Debt Securities, at Amortized Cost:
Within One Year	8,363
From 1 - 5 Years	650
From 5 - 10 Years	208
Over 10 Years	520
Maturities of Debt Securities, at Fair Value:
Within One Year	8,360
From 1 - 5 Years	655
From 5 - 10 Years	208
Over 10 Years	520
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	7,421	8,498	828
12 Months or Longer	0	0	0
Total	$ 7,421	$ 8,498	$ 828
Number of Securities in a Continuous Loss Position	29	36	5
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 6	$ 11	$ 0
12 Months or Longer	0	0	0
Total	6	11	0
Mortgage-Backed Securities - Residential
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Securities, at Amortized Cost	240,033	229,077	170,601
Available-for-Sale	235,389	227,596	169,728
Gross Unrealized Gains	347	485	934
Gross Unrealized Losses	4,991	1,966	1,806
Maturities of Debt Securities, at Amortized Cost:
Within One Year	891
From 1 - 5 Years	121,977
From 5 - 10 Years	71,473
Over 10 Years	45,692
Maturities of Debt Securities, at Fair Value:
Within One Year	896
From 1 - 5 Years	118,649
From 5 - 10 Years	70,140
Over 10 Years	45,704
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	112,078	70,930	127,931
12 Months or Longer	80,759	80,759	0
Total	$ 192,837	$ 151,689	$ 127,931
Number of Securities in a Continuous Loss Position	69	55	41
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 1,940	$ 363	$ 1,806
12 Months or Longer	3,050	1,603	0
Total	4,990	1,966	1,806
Corporate and Other Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Securities, at Amortized Cost	1,000	1,000	3,501
Available-for-Sale	800	800	3,298
Gross Unrealized Gains	0	0	0
Gross Unrealized Losses	200	200	203
Maturities of Debt Securities, at Amortized Cost:
Within One Year	0
From 1 - 5 Years	0
From 5 - 10 Years	0
Over 10 Years	1,000
Maturities of Debt Securities, at Fair Value:
Within One Year	0
From 1 - 5 Years	0
From 5 - 10 Years	0
Over 10 Years	800
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	0	0	2,498
12 Months or Longer	800	800	800
Total	$ 800	$ 800	$ 3,298
Number of Securities in a Continuous Loss Position	1	1	4
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 0	$ 0	$ 3
12 Months or Longer	200	200	200
Total	200	200	203
Equity Securities
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Securities, at Amortized Cost		1,120	1,120
Available-for-Sale		1,561	1,395
Gross Unrealized Gains		441	275
Gross Unrealized Losses	0	0	0
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	0	0	0
12 Months or Longer	0	0	0
Total	$ 0	$ 0	$ 0
Number of Securities in a Continuous Loss Position	0	0	0
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 0	$ 0	$ 0
12 Months or Longer	0	0	0
Total	0	0	0
Fair Value, Measurements, Recurring
Schedule of Available-for-sale Securities [Line Items]
Available-for-Sale	305,589	300,200	347,159
Fair Value, Measurements, Recurring | U.S. Agency Obligations
Schedule of Available-for-sale Securities [Line Items]
Available-for-Sale	59,657	59,894	147,231
Fair Value, Measurements, Recurring | State and Municipal Obligations
Schedule of Available-for-sale Securities [Line Items]
Available-for-Sale	9,743	10,349	25,507
Fair Value, Measurements, Recurring | Corporate and Other Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-Sale	800	800	3,298
Fair Value, Measurements, Recurring | Equity Securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-Sale		1,561
US Treasury Securities | U.S. Agency Obligations
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Securities, at Amortized Cost	0	0	54,649
Available-for-Sale	0	0	54,695
Agency Securities | U.S. Agency Obligations
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Securities, at Amortized Cost	60,264	60,328	92,363
Available-for-Sale	59,657	59,894	92,536
Agency Securities | Mortgage-Backed Securities - Residential
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Securities, at Amortized Cost	59,446	40,832	1,616
Available-for-Sale	59,469	40,832	1,625
US Government-sponsored Enterprises Debt Securities | Mortgage-Backed Securities - Residential
Schedule of Available-for-sale Securities [Line Items]
Available-for-Sale	175,920	186,764	168,103
US Government-sponsored Enterprises Debt Securities | Mortgage-Backed Securities - Residential | US Government-sponsored Enterprises Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Securities, at Amortized Cost	$ 180,587	$ 188,245	$ 168,985

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Investment Securities Held to Maturity (Details) $ in Thousands	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Mar. 31, 2017 USD ($)
Schedule of Held-to-maturity Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 311,038	$ 301,876	$ 347,701
Equity Securities	1,579	0	0
Gross Unrealized Gains	354	935	1,519
Held-to-Maturity at Amortized Cost	330,124	335,907	335,211
Held-To-Maturity Securities, at Fair Value	324,938	335,901	335,105
Gross Unrealized Gains	646	1,960	2,708
Gross Unrealized Losses	5,832	1,966	2,813
Held-To-Maturity Securities, Pledged as Collateral	307,273	318,622	316,966
Maturities of Debt Securities, at Amortized Cost:
Within One Year	35,115
From 1 - 5 Years	132,555
From 5 - 10 Years	159,054
Over 10 Years	3,400
Maturities of Debt Securities, at Fair Value:
Within One Year	35,160
From 1 - 5 Years	132,124
From 5 - 10 Years	154,255
Over 10 Years	3,399
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	154,771	69,412	103,132
12 Months or Longer	68,269	68,409	657
Total	$ 223,040	$ 137,821	$ 103,789
Number of Securities in a Continuous Loss Position	542	366	259
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 2,748	$ 498	$ 2,810
12 Months or Longer	3,084	1,468	3
Total	5,832	1,966	2,813
State and Municipal Obligations
Schedule of Held-to-maturity Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	9,741	10,351	25,467
Gross Unrealized Gains	7	9	40
Held-to-Maturity at Amortized Cost	272,938	275,530	263,642
Held-To-Maturity Securities, at Fair Value	268,605	275,353	263,255
Gross Unrealized Gains	646	1,691	2,410
Gross Unrealized Losses	4,979	1,868	2,796
Maturities of Debt Securities, at Amortized Cost:
Within One Year	35,115
From 1 - 5 Years	81,312
From 5 - 10 Years	153,111
Over 10 Years	3,400
Maturities of Debt Securities, at Fair Value:
Within One Year	35,160
From 1 - 5 Years	81,634
From 5 - 10 Years	148,412
Over 10 Years	3,399
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	101,695	55,648	95,450
12 Months or Longer	65,012	65,152	657
Total	$ 166,707	$ 120,800	$ 96,107
Number of Securities in a Continuous Loss Position	495	352	251
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 1,981	$ 442	$ 2,793
12 Months or Longer	2,998	1,425	3
Total	4,979	1,867	2,796
Mortgage-Backed Securities - Residential
Schedule of Held-to-maturity Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	240,033	229,077	170,601
Gross Unrealized Gains	347	485	934
Held-to-Maturity at Amortized Cost	57,186	60,377	71,569
Held-To-Maturity Securities, at Fair Value	56,333	60,548	71,850
Gross Unrealized Gains	0	269	298
Gross Unrealized Losses	853	98	17
Maturities of Debt Securities, at Amortized Cost:
Within One Year	0
From 1 - 5 Years	51,243
From 5 - 10 Years	5,943
Over 10 Years	0
Maturities of Debt Securities, at Fair Value:
Within One Year	0
From 1 - 5 Years	50,490
From 5 - 10 Years	5,843
Over 10 Years	0
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	53,076	13,764	7,682
12 Months or Longer	3,257	3,257	0
Total	$ 56,333	$ 17,021	$ 7,682
Number of Securities in a Continuous Loss Position	47	14	8
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 767	$ 56	$ 17
12 Months or Longer	86	43	0
Total	853	99	17
Mortgage-Backed Securities - Residential | Agency Securities
Schedule of Held-to-maturity Securities [Line Items]
Held-to-Maturity at Amortized Cost	2,530	2,680	3,106
Mortgage-Backed Securities - Residential | US Government-sponsored Enterprises Debt Securities
Schedule of Held-to-maturity Securities [Line Items]
Held-to-Maturity at Amortized Cost	54,656	57,697	68,463
Corporate and Other Debt Securities
Schedule of Held-to-maturity Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	1,000	1,000	3,501
Gross Unrealized Gains	0	0	0
Held-to-Maturity at Amortized Cost	0	0	0
Held-To-Maturity Securities, at Fair Value	0	0	0
Gross Unrealized Gains	0	0	0
Gross Unrealized Losses	0	0	0
Maturities of Debt Securities, at Amortized Cost:
Within One Year	0
From 1 - 5 Years	0
From 5 - 10 Years	0
Over 10 Years	0
Maturities of Debt Securities, at Fair Value:
Within One Year	0
From 1 - 5 Years	0
From 5 - 10 Years	0
Over 10 Years	0
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	0	0	0
12 Months or Longer	0	0	0
Total	$ 0	$ 0	$ 0
Number of Securities in a Continuous Loss Position	0	0	0
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$ 0	$ 0	$ 0
12 Months or Longer	0	0	0
Total	0	0	0
Agency Securities | Mortgage-Backed Securities - Residential
Schedule of Held-to-maturity Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	59,446	40,832	1,616
Fair Value, Measurements, Recurring
Schedule of Held-to-maturity Securities [Line Items]
Equity Securities	1,579
Fair Value, Measurements, Recurring | Mortgage-Backed Securities - Residential | US Government-sponsored Enterprises Debt Securities
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Fair Value	53,850	57,887	68,729
Fair Value, Measurements, Recurring | Agency Securities | Mortgage-Backed Securities - Residential
Schedule of Held-to-maturity Securities [Line Items]
Held-To-Maturity Securities, at Fair Value	$ 2,483	$ 2,661	$ 3,121

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Loans Supplemental Loan Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Loans and Leases Receivable, Other Information [Abstract]
Loans Held-for-sale	$ 171	$ 327	$ 896
Credit Card Receivable | Consumer Portfolio Segment | Minimum
Schedule of Financing Receivable Terms [Line Items]
Principal Repayment Terms, Period	1 year
Credit Card Receivable | Consumer Portfolio Segment | Maximum
Schedule of Financing Receivable Terms [Line Items]
Principal Repayment Terms, Period	5 years
Automobile Loan | Consumer Portfolio Segment | Minimum
Schedule of Financing Receivable Terms [Line Items]
Principal Repayment Terms, Period	3 years
Automobile Loan | Consumer Portfolio Segment | Maximum
Schedule of Financing Receivable Terms [Line Items]
Principal Repayment Terms, Period	7 years

XML

Loans Loan Categories and Past Due Loans(Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	$ 8,298	$ 12,708	$ 9,220
Current Loans	1,984,739	1,938,062	1,801,585
Total Loans	1,993,037	1,950,770	1,810,805
Loans 90 or More Days Past Due and Still Accruing Interest	0	319	0
Nonaccrual Loans	4,470	5,526	4,273
Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	5,585	8,124	6,092
Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	1,292	1,743	1,838
Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	1,421	2,841	1,290
Commercial
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	146	257	318
Current Loans	127,528	128,992	118,524
Total Loans	127,674	129,249	118,842
Loans 90 or More Days Past Due and Still Accruing Interest	0	0	0
Nonaccrual Loans	652	588	144
Commercial | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	45	139	189
Commercial | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	60	19	9
Commercial | Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	41	99	120
Commercial Real Estate Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	963	807	0
Current Loans	454,095	443,441	435,316
Total Loans	455,058	444,248	435,316
Loans 90 or More Days Past Due and Still Accruing Interest	0	0	0
Nonaccrual Loans	807	1,530	870
Commercial Real Estate Portfolio Segment | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	156	0	0
Commercial Real Estate Portfolio Segment | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	0	0	0
Commercial Real Estate Portfolio Segment | Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	807	807	0
Consumer Loans Financing
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	4,676	7,619	5,362
Current Loans	621,964	595,208	546,601
Total Loans	626,640	602,827	551,963
Loans 90 or More Days Past Due and Still Accruing Interest	0	6	0
Nonaccrual Loans	441	653	656
Consumer Loans Financing | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	3,673	5,891	3,882
Consumer Loans Financing | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	751	1,215	1,145
Consumer Loans Financing | Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	252	513	335
Residential
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	2,513	4,025	3,540
Current Loans	781,152	770,421	701,144
Total Loans	783,665	774,446	704,684
Loans 90 or More Days Past Due and Still Accruing Interest	0	313	0
Nonaccrual Loans	2,570	2,755	2,603
Residential | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	1,711	2,094	2,021
Residential | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	481	509	684
Residential | Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing Receivable, Recorded Investment, Past Due	$ 321	$ 1,422	$ 835

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Loans Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	$ 18,586	$ 17,012
Charge-offs	(370)	(270)
Recoveries	95	116
Provision	746	358
Allowance for Loan Losses, Ending Balance	19,057	17,216
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	192	34	$ 106
Allowance for loan losses - Loans Collectively Evaluated for Impairment	18,865	17,182	18,480
Ending Loan Balance - Individually Evaluated for Impairment	2,959	2,066	3,683
Ending Loan Balance - Collectively Evaluated for Impairment	1,990,078	1,808,739	1,947,087
Commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	1,873	1,017
Charge-offs	(16)	(16)
Recoveries	0	7
Provision	311	(69)
Allowance for Loan Losses, Ending Balance	2,168	939
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	92	0	94
Allowance for loan losses - Loans Collectively Evaluated for Impairment	2,076	939	1,779
Ending Loan Balance - Individually Evaluated for Impairment	489	0	489
Ending Loan Balance - Collectively Evaluated for Impairment	127,185	118,841	128,760
Commercial Real Estate Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	4,504	5,677
Charge-offs	1	0
Recoveries	9	0
Provision	(151)	(228)
Allowance for Loan Losses, Ending Balance	4,363	5,449
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	42	34	2
Allowance for loan losses - Loans Collectively Evaluated for Impairment	4,321	5,415	4,502
Ending Loan Balance - Individually Evaluated for Impairment	815	884	1,537
Ending Loan Balance - Collectively Evaluated for Impairment	454,243	434,432	442,711
Consumer Loans Financing
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	7,604	6,120
Charge-offs	(347)	(254)
Recoveries	86	109
Provision	676	727
Allowance for Loan Losses, Ending Balance	8,019	6,702
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	0	0	0
Allowance for loan losses - Loans Collectively Evaluated for Impairment	8,019	6,702	7,604
Ending Loan Balance - Individually Evaluated for Impairment	91	88	95
Ending Loan Balance - Collectively Evaluated for Impairment	626,549	551,876	602,732
Residential
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	4,605	4,198
Charge-offs	(8)	0
Recoveries	0	0
Provision	(90)	(72)
Allowance for Loan Losses, Ending Balance	4,507	4,126
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	58	0	10
Allowance for loan losses - Loans Collectively Evaluated for Impairment	4,449	4,126	4,595
Ending Loan Balance - Individually Evaluated for Impairment	1,564	1,094	1,562
Ending Loan Balance - Collectively Evaluated for Impairment	$ 782,101	$ 703,590	$ 772,884

XML

Loans Credit Quality Indicators (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Satisfactory
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Net	$ 537,959	$ 542,323	$ 511,682
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Net	17,831	1,518	3,582
Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Net	26,136	28,849	38,894
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Net	807	807	0
Performing
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Net	1,407,293	1,373,752	1,253,388
Nonperforming
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Net	3,011	3,727	3,259
Commercial | Satisfactory
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Net	107,838	124,961	109,416
Commercial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Net	17,220	1,341	1,349
Commercial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Net	2,615	2,947	8,077
Commercial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Net	0	0	0
Commercial Real Estate Portfolio Segment | Satisfactory
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Net	430,121	417,362	402,266
Commercial Real Estate Portfolio Segment | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Net	611	177	2,233
Commercial Real Estate Portfolio Segment | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Net	23,521	25,902	30,817
Commercial Real Estate Portfolio Segment | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Net	807	807	0
Consumer Loans Financing | Performing
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Net	626,198	602,168	551,307
Consumer Loans Financing | Nonperforming
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Net	441	659	656
Residential | Performing
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Net	781,095	771,584	702,081
Residential | Nonperforming
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Net	$ 2,570	$ 3,068	$ 2,603

XML

Loans Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Recorded Investment:
With No Related Allowance	$ 1,374	$ 1,778	$ 2,144
With a Related Allowance		288	1,543
Unpaid Principal Balance:
With No Related Allowance	1,377	1,778	2,185
With a Related Allowance	1,582	288	1,498
Average Recorded Balance:
With No Related Allowance	1,760	1,929
With a Related Allowance	1,583	144
Interest Income Recognized:
With No Related Allowance	16	1
With a Related Allowance	24	0
Cash Basis Income:
With No Related Allowance	0	0
With a Related Allowance	0	0
Commercial
Recorded Investment:
With No Related Allowance	0	0	0
With a Related Allowance	483	0	485
Unpaid Principal Balance:
With No Related Allowance	0	0	0
With a Related Allowance	489	0	489
Average Recorded Balance:
With No Related Allowance	0	0
With a Related Allowance	484	0
Interest Income Recognized:
With No Related Allowance	0	0
With a Related Allowance	0	0
Cash Basis Income:
With No Related Allowance	0	0
With a Related Allowance	0	0
Commercial Real Estate Portfolio Segment
Recorded Investment:
With No Related Allowance	8	884	781
With a Related Allowance	783	0	725
Unpaid Principal Balance:
With No Related Allowance	8	884	816
With a Related Allowance	807	0	721
Average Recorded Balance:
With No Related Allowance	395	887
With a Related Allowance	754	0
Interest Income Recognized:
With No Related Allowance	0	0
With a Related Allowance	0	0
Cash Basis Income:
With No Related Allowance	0	0
With a Related Allowance	0	0
Consumer Portfolio Segment
Recorded Investment:
With No Related Allowance	90	88	94
With a Related Allowance	0	0	0
Unpaid Principal Balance:
With No Related Allowance	90	88	95
With a Related Allowance	0	0	0
Average Recorded Balance:
With No Related Allowance	92	90
With a Related Allowance	0	0
Interest Income Recognized:
With No Related Allowance	0	1
With a Related Allowance	0	0
Cash Basis Income:
With No Related Allowance	0	0
With a Related Allowance	0	0
Residential
Recorded Investment:
With No Related Allowance	1,276	806	1,269
With a Related Allowance	356	288	333
Unpaid Principal Balance:
With No Related Allowance	1,279	806	1,274
With a Related Allowance	286	288	$ 288
Average Recorded Balance:
With No Related Allowance	1,273	952
With a Related Allowance	345	144
Interest Income Recognized:
With No Related Allowance	16	0
With a Related Allowance	24	0
Cash Basis Income:
With No Related Allowance	0	0
With a Related Allowance	$ 0	$ 0

XML

Loans Loans Modified in Trouble Debt Restructurings (Details) - Entity Loan Modification Program - Payment Deferral $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) contract	Mar. 31, 2017 USD ($) contract
Financing Receivable, Modifications [Line Items]
Number of Loans | contract	1	2
Pre-Modification Outstanding Recorded Investment	$ 3	$ 15
Post-Modification Outstanding Recorded Investment	$ 3	$ 15
Financing Receivable, Modification, Subsequent Default, Number of Contracts | contract	0	0
Financing Receivable, Modification, Subsequent Default, Recorded Investment	$ 0	$ 0
Commercial
Financing Receivable, Modifications [Line Items]
Number of Loans | contract	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	$ 0	$ 0
Financing Receivable, Modification, Subsequent Default, Number of Contracts | contract	0	0
Financing Receivable, Modification, Subsequent Default, Recorded Investment	$ 0	$ 0
Commercial Real Estate Portfolio Segment
Financing Receivable, Modifications [Line Items]
Number of Loans | contract	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	$ 0	$ 0
Financing Receivable, Modification, Subsequent Default, Number of Contracts | contract	0	0
Financing Receivable, Modification, Subsequent Default, Recorded Investment	$ 0	$ 0
Consumer Loans Financing
Financing Receivable, Modifications [Line Items]
Number of Loans | contract	1	2
Pre-Modification Outstanding Recorded Investment	$ 3	$ 15
Post-Modification Outstanding Recorded Investment	$ 3	$ 15
Financing Receivable, Modification, Subsequent Default, Number of Contracts | contract	0	0
Financing Receivable, Modification, Subsequent Default, Recorded Investment	$ 0	$ 0
Residential
Financing Receivable, Modifications [Line Items]
Number of Loans | contract	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	$ 0	$ 0
Financing Receivable, Modification, Subsequent Default, Number of Contracts | contract	0	0
Financing Receivable, Modification, Subsequent Default, Recorded Investment	$ 0	$ 0

XML

Guarantees (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Commitments to Extend Credit
Loan Commitments and Letters of Credit [Line Items]
Notional Amount	$ 328,774	$ 315,256	$ 294,618
Fair Value	0	0	0
Standby Letters of Credit
Loan Commitments and Letters of Credit [Line Items]
Notional Amount	3,584	3,526	3,371
Fair Value	$ 24	$ 23	$ 28
Minimum | Standby Letters of Credit
Loan Commitments and Letters of Credit [Line Items]
Loan commitments, fixed fee percent	1.00%
Maximum | Standby Letters of Credit
Loan Commitments and Letters of Credit [Line Items]
Loan commitments, fixed fee percent	3.00%

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Comprehensive Income Other Comprehensive Income (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Schedule of Comprehensive Income [Line Items]
Net Unrealized Securities Holding Gains Arising During the Period		$ (2,485)	$ 47
Amortization of Net Retirement Plan Actuarial Loss		(46)	(109)
Accretion of Net Retirement Plan Prior Service Credit		1	2
Other Comprehensive Income, before Tax		(3,273)	252
Other Comprehensive Income, Tax		833	(98)
Other Comprehensive Income		(2,440)	154
Unrealized Gains and Losses on Available for Sale Securities
Schedule of Comprehensive Income [Line Items]
Net Unrealized Securities Holding Losses on Securities Available-for-Sale Arising During the Period Before Tax		(3,332)	77
Net Unrealized Securities Holding Losses on Securities Available-for-Sale Arising During the Period, Tax		847	(30)
Net Unrealized Securities Holding Gains Arising During the Period		(2,485)	47
Other Comprehensive Income	[1]	(2,485)	47
Amortization of Net Retirement Plan Actuarial Gain (Loss)
Schedule of Comprehensive Income [Line Items]
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax		60	178
Reclassification From Accumulated Other Comprehensive Income Current Period Tax (Expense) Benefit		(14)	(69)
Amortization of Net Retirement Plan Actuarial Loss		46	109
Other Comprehensive Income	[1]	46	109
Accretion of Net Retirement Plan Prior Service (Cost) Credit
Schedule of Comprehensive Income [Line Items]
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax		(1)	(3)
Reclassification From Accumulated Other Comprehensive Income Current Period Tax (Expense) Benefit		0	1
Accretion of Net Retirement Plan Prior Service Credit		(1)	(2)
Other Comprehensive Income	[1]	$ (1)	$ (2)

[1] All amounts are net of tax. Amounts in parentheses indicate debits.

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Comprehensive Income Changes in Accumulated Other Comprehensive Income By Component (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Net current-period other comprehensive income (loss)		$ (2,440)	$ 154
Unrealized Gains and Losses on Available for Sale Securities
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Stockholders' Equity, Period Start	[1]	(1,250)	(382)
Other comprehensive income or loss before reclassifications	[1]	(2,485)	47
Amounts reclassified from accumulated other comprehensive income	[1]	0	0
Net current-period other comprehensive income (loss)	[1]	(2,485)	47
Reclassification due to the adoption of ASU 2016-01	[1]			$ (331)
Stockholders' Equity, Period End	[1]	(4,066)	(335)
Amortization of Net Retirement Plan Actuarial Gain (Loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Stockholders' Equity, Period Start	[1]	(6,380)	(5,737)
Other comprehensive income or loss before reclassifications	[1]	0	0
Amounts reclassified from accumulated other comprehensive income	[1]	46	109
Net current-period other comprehensive income (loss)	[1]	46	109
Stockholders' Equity, Period End	[1]	(6,334)	(5,628)
Accretion of Net Retirement Plan Prior Service (Cost) Credit
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Stockholders' Equity, Period Start	[1]	(884)	(715)
Other comprehensive income or loss before reclassifications	[1]	0	0
Amounts reclassified from accumulated other comprehensive income	[1]	(1)	(2)
Net current-period other comprehensive income (loss)	[1]	(1)	(2)
Stockholders' Equity, Period End	[1]	(885)	(717)
Accumulated Other Comprehensive Income (Loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Stockholders' Equity, Period Start	[1]	(8,514)	(6,834)
Other comprehensive income or loss before reclassifications	[1]	(2,485)	47
Amounts reclassified from accumulated other comprehensive income	[1]	45	107
Net current-period other comprehensive income (loss)	[1]	(2,440)	154
Reclassification due to the adoption of ASU 2016-01	[1]			$ (331)
Stockholders' Equity, Period End	[1]	$ (11,285)	$ (6,680)

[1] All amounts are net of tax. Amounts in parentheses indicate debits.

XML

Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Amortization of Net Retirement Plan Actuarial Loss		$ 46	$ 109
Income before provision for income taxes		10,589	9,323
Provision for Income Taxes		2,058	2,692
Net Income		(45)	(107)
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Defined Benefit Plans Adjustment
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Amortization of Net Retirement Plan Actuarial Loss	[1],[2]	1	3
Amortization of Net Retirement Plan Actuarial Loss, Before-Tax Amount	[1],[2]	(60)	(178)
Income before provision for income taxes		(59)	(175)
Provision for Income Taxes		14	68
Net Income		$ (45)	$ (107)

[1] Amounts in parentheses indicate debits to profit/loss.

[2] These accumulated other comprehensive income components are included in the computation of net periodic pension cost.

XML

Stock Based Compensation (Details)	3 Months Ended
	Mar. 31, 2018 plan $ / shares shares	Sep. 28, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of plans | plan	3
Stock dividend, percent		3.00%
Roll-Forward of Shares Outstanding - Weighted Average Exercise Price:
Fair Value, in dollars per share	$ 5.76
Dividend Yield	2.98%
Expected Volatility	21.55%
Risk Free Interest Rate	2.68%
Expected Lives, in years	6 years 11 months 23 days
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award expiration period (in years)	10 years
Award vesting period (in years)	4 years
Roll-Forward of Shares Outstanding:
Outstanding, Beginning of Period, in shares | shares	346,155
Granted, in shares | shares	55,188
Exercised, in shares | shares	(27,662)
Forfeited, in shares | shares	0
Outstanding, End of Period, in shares | shares	373,681
Exercisable at Period End, in shares | shares	247,333
Vested and Expected to Vest, in shares | shares	126,348
Roll-Forward of Shares Outstanding - Weighted Average Exercise Price:
Outstanding at Beginning of Period, in dollars per share	$ 24.12
Granted, in dollars per share	30.85
Exercised, in dollars per share	22.03
Forfeited, in dollars per share	0.00
Outstanding, End of Period, in dollars per share	25.27
Exercisable at Period End, in dollars per share	22.57
Vested and Expected to Vest, in dollars per share	$ 30.54
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)	3 years

XML

Stock Based Compensation Stock Based Compensation - Restricted Stock Units (Details) - Restricted Stock Units (RSU)	3 Months Ended
	Mar. 31, 2018 $ / shares shares
Roll-Forward of Restricted Stock Units
Balance at Beginning of Period, in units | shares	0
Granted, in units | shares	3,279
Vested, in units | shares	0
Canceled, in units | shares	0
Balance at End of Period, in units | shares	3,279
Roll-Forward of Non-vested Restricted Stock Units - Weighted Average Fair Value:
Outstanding at Beginning of period, in dollars per unit | $ / shares	$ 0.00
Granted, in dollars per unit | $ / shares	33.55
Vested, in dollars per unit | $ / shares	0.00
Canceled, in dollars per unit | $ / shares	0.00
Outstanding at End of period, in dollars per unit | $ / shares	$ 33.55

XML

Stock Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation Expense	$ 89	$ 83
Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Discount from market price, percent	5.00%

XML

Retirement Plans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Net Periodic Benefit Cost [Line Items]
Employer matching contribution, Percentage	5.00%
Employees' Pension Plan
Net Periodic Benefit Cost [Line Items]
Service Cost 1	$ 348	$ 350
Interest Cost 2	525	350
Expected Return on Plan Assets 2	(785)	(800)
Amortization of Prior Service (Credit) Cost 2	(12)	(14)
Amortization of Net Loss 2	33	148
Net Periodic Benefit Cost	109	34
Plan Contributions During the Period	0	0
Select Executive Retirement Plan
Net Periodic Benefit Cost [Line Items]
Service Cost 1	11	10
Interest Cost 2	50	50
Expected Return on Plan Assets 2	0	0
Amortization of Prior Service (Credit) Cost 2	14	14
Amortization of Net Loss 2	33	30
Net Periodic Benefit Cost	108	104
Plan Contributions During the Period	116	113
Post-Retirement Benefit Plans
Net Periodic Benefit Cost [Line Items]
Service Cost 1	33	37
Interest Cost 2	99	86
Expected Return on Plan Assets 2	0	0
Amortization of Prior Service (Credit) Cost 2	(3)	(3)
Amortization of Net Loss 2	(6)	0
Net Periodic Benefit Cost	123	120
Plan Contributions During the Period	$ 17	$ 53
On Or Subsequent to January 1, 2003
Net Periodic Benefit Cost [Line Items]
Service credits, percent of eligible salaries	6.00%
Minimum | Prior to January 1, 2003
Net Periodic Benefit Cost [Line Items]
Service credits, percent of eligible salaries	6.00%
Maximum | Prior to January 1, 2003
Net Periodic Benefit Cost [Line Items]
Service credits, percent of eligible salaries	12.00%

XML

Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2018		Mar. 31, 2017		Sep. 28, 2017
Earnings Per Share [Abstract]
Stock dividend, percent						3.00%
Net Income		$ 8,531		$ 6,631
Basic, in shares		13,936	[1]	13,889	[2]
Basic Earnings, in dollars per share		$ 0.61		$ 0.48
Dilutive Average Shares Attributable to Stock Options	[1]	80		112
Diluted, in shares	[2]	14,016	[1]	14,001
Diluted Earnings, in dollars per share		$ 0.61		$ 0.47

[1] Cash dividends paid per share have been adjusted for the September 28, 2017 3% stock dividend.

[2] Share and Per Share Amounts have been restated for the September 28, 2017 3% stock dividend.

XML

Fair Value of Financial Instruments Fair Value - Recurring and Nonrecurring (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	$ 305,589	$ 300,200	$ 347,159
Equity Securities	1,579	0	0
Available-for-sale Securities, Amortized Cost Basis	311,038	301,876	347,701
With a Related Allowance		1,543	288
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	305,589	300,200	347,159
Equity Securities	1,579
Total Securities Measured on a Recurring Basis	307,168
Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Indentical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	59,657	59,894	54,695
Equity Securities	0
Total Securities Measured on a Recurring Basis	59,657
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	245,932	240,306	292,464
Equity Securities	1,579
Total Securities Measured on a Recurring Basis	247,511
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
Equity Securities	0
Total Securities Measured on a Recurring Basis	0
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Loans	1,622	0
Gain (Loss) on Collateral Dependent Impaired Loans		0
Other Real Estate and Repossessed Assets, Net	1,647	1,847	1,734
Gain (Loss) Other Real Estate and Repossessed Assets, Net	(582)	(569)	(500)
Fair Value, Measurements, Nonrecurring | Quoted Prices In Active Markets for Indentical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Loans		0
Other Real Estate and Repossessed Assets, Net	0	0	0
Fair Value, Measurements, Nonrecurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Loans		0
Other Real Estate and Repossessed Assets, Net	0	0	0
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Loans		0
Other Real Estate and Repossessed Assets, Net	1,647	1,847	1,734
U.S. Agency Obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	59,657	59,894	147,231
Available-for-sale Securities, Amortized Cost Basis	60,264	60,328	147,012
U.S. Agency Obligations | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	59,657	59,894	147,231
U.S. Agency Obligations | Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Indentical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale		59,894	54,695
U.S. Agency Obligations | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	92,536
U.S. Agency Obligations | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
State and Municipal Obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	9,743	10,349	25,507
Available-for-sale Securities, Amortized Cost Basis	9,741	10,351	25,467
State and Municipal Obligations | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	9,743	10,349	25,507
State and Municipal Obligations | Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Indentical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
State and Municipal Obligations | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	9,743	10,349	25,507
State and Municipal Obligations | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
Mortgage-Backed Securities - Residential | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	235,389	227,596	169,728
Mortgage-Backed Securities - Residential | Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Indentical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
Mortgage-Backed Securities - Residential | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	235,389	227,596	169,728
Mortgage-Backed Securities - Residential | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
Corporate and Other Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	800	800	3,298
Available-for-sale Securities, Amortized Cost Basis	1,000	1,000	3,501
Corporate and Other Debt Securities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	800	800	3,298
Corporate and Other Debt Securities | Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Indentical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
Corporate and Other Debt Securities | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	800	800	3,298
Corporate and Other Debt Securities | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale	0	0	0
Equity Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale		1,561	1,395
Available-for-sale Securities, Amortized Cost Basis		1,120	1,120
Equity Securities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale		1,561
Equity Securities			1,395
Equity Securities | Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Indentical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale		0
Equity Securities			0
Equity Securities | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale		1,561
Equity Securities			1,395
Equity Securities | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-Sale		$ 0
Equity Securities			0
Collateral Pledged | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Loans	1,295		288
Gain (Loss) on Collateral Dependent Impaired Loans	(58)		(34)
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Quoted Prices In Active Markets for Indentical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Loans	0		0
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Loans	0		0
Collateral Pledged | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Loans	$ 1,295		$ 288

XML

Fair Value of Financial Instruments Fair Value by Balance Sheet Grouping (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents	$ 100,272	$ 72,838	$ 64,803	$ 57,355
Available-for-Sale	305,589	300,200	347,159
Held-to-Maturity at Amortized Cost	330,124	335,907	335,211
Held-To-Maturity Securities, at Fair Value	324,938	335,901	335,105
Equity Securities	1,579	0	0
Federal Home Loan Bank and Federal Reserve Bank Stock	4,780	9,949	6,826
Net Loans	1,973,980	1,932,184	1,793,589
Deposits	2,411,273	2,245,116	2,256,536
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	74,957	64,966	32,035
Federal Home Loan Bank Overnight Advances	0	105,000	32,000
Federal Home Loan Bank Term Advances	45,000	55,000	55,000
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts	20,000	20,000	20,000
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents	100,272		64,803
Net Loans	1,973,980	1,932,184	1,793,589
Accrued Interest Receivable	7,662	6,753	7,530
Deposits	2,411,273	2,245,116	2,256,536
Accrued Interest Payable	361	410	240
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	100,272	72,838	64,803
Available-for-Sale	305,589	300,200	347,159
Held-To-Maturity Securities, at Fair Value	324,938	335,901	335,105
Equity Securities	1,579
Federal Home Loan Bank and Federal Reserve Bank Stock, Fair Value Disclosure	4,780	9,949	6,826
Net Loans, Fair Value Disclosure	1,915,978	1,901,046	1,773,895
Accrued Interest Receivable, Fair Value Disclosure	7,662	6,753	7,530
Deposits, Fair Value Disclosure	2,402,122	2,236,548	2,248,066
Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Fair Value Disclosure	74,957	64,966	32,035
Federal Funds Purchased, Fair Value Disclosure		105,000	32,000
Federal Home Loan Bank Term Advances, Fair Value Disclosure	44,484	54,781	55,130
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts, Fair Value Disclosure	20,000	20,000	20,000
Accrued Interest Payable, Fair Value Disclosure	361	410	240
Quoted Prices In Active Markets for Indentical Assets (Level 1) | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	100,272	72,838	64,803
Available-for-Sale	0	59,894	54,695
Held-To-Maturity Securities, at Fair Value	0	0	0
Equity Securities	0
Federal Home Loan Bank and Federal Reserve Bank Stock, Fair Value Disclosure	0	0	0
Net Loans, Fair Value Disclosure	0	0	0
Accrued Interest Receivable, Fair Value Disclosure	0	0	0
Deposits, Fair Value Disclosure	0	0	0
Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Fair Value Disclosure	0	0	0
Federal Funds Purchased, Fair Value Disclosure		0	0
Federal Home Loan Bank Term Advances, Fair Value Disclosure	0	0	0
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts, Fair Value Disclosure	0	0	0
Accrued Interest Payable, Fair Value Disclosure	0	0	0
Significant Other Observable Inputs (Level 2) | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0	0	0
Available-for-Sale	305,589	240,306	292,464
Held-To-Maturity Securities, at Fair Value	324,938	335,901	335,105
Equity Securities	1,579
Federal Home Loan Bank and Federal Reserve Bank Stock, Fair Value Disclosure	4,780	9,949	6,826
Net Loans, Fair Value Disclosure	0	0	0
Accrued Interest Receivable, Fair Value Disclosure	7,662	6,753	7,530
Deposits, Fair Value Disclosure	2,402,122	2,236,548	2,248,066
Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Fair Value Disclosure	74,957	64,966	32,035
Federal Funds Purchased, Fair Value Disclosure		105,000	32,000
Federal Home Loan Bank Term Advances, Fair Value Disclosure	44,484	54,781	55,130
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts, Fair Value Disclosure	20,000	20,000	20,000
Accrued Interest Payable, Fair Value Disclosure	361	410	240
Significant Unobservable Inputs (Level 3) | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0	0	0
Available-for-Sale	0	0	0
Held-To-Maturity Securities, at Fair Value	0	0	0
Equity Securities	0
Federal Home Loan Bank and Federal Reserve Bank Stock, Fair Value Disclosure	0	0	0
Net Loans, Fair Value Disclosure	1,915,978	1,901,046	1,773,895
Accrued Interest Receivable, Fair Value Disclosure	0	0	0
Deposits, Fair Value Disclosure	0	0	0
Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Fair Value Disclosure	0	0	0
Federal Funds Purchased, Fair Value Disclosure		0	0
Federal Home Loan Bank Term Advances, Fair Value Disclosure	0	0	0
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts, Fair Value Disclosure	0	0	0
Accrued Interest Payable, Fair Value Disclosure	$ 0	$ 0	$ 0