Cortland Bancorp (CLDB) 10-K 22 Mar 18 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2017	Mar. 14, 2018	Jun. 30, 2017
Document And Entity Information [Abstract]
Entity Registrant Name	CORTLAND BANCORP INC
Entity Central Index Key	774,569
Document Type	10-K
Trading Symbol	CLDB
Document Period End Date	Dec. 31, 2017
Amendment Flag	false
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float			$ 72,521,756
Entity Common Stock, Shares Outstanding		4,409,648

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
ASSETS
Cash and due from banks	$ 9,741	$ 7,021
Interest-earning deposits	9,384	8,330
Total cash and cash equivalents	19,125	15,351
Investment securities available-for-sale (Note 2)	162,422	179,219
Loans held for sale	2,780	4,554
Total loans (Note 3)	487,490	419,768
Less allowance for loan losses (Note 3)	(4,578)	(4,868)
Net loans	482,912	414,900
Premises and equipment	9,038	9,132
Bank-owned life insurance	17,650	17,376
Other assets	17,174	14,652
Total assets	711,101	655,184
LIABILITIES
Noninterest-bearing deposits	123,291	117,225
Interest-bearing deposits (Note 5)	462,560	422,625
Total deposits	585,851	539,850
Short-term borrowings	2,678	2,702
Federal Home Loan Bank advances - short-term (Note 6)	32,000	23,000
Federal Home Loan Bank advances - long term (Note 6)	14,000	17,500
Subordinated debt (Note 7)	5,155	5,155
Other liabilities	9,787	9,307
Total liabilities	649,471	597,514
SHAREHOLDERS’ EQUITY
Common stock - $5.00 stated value - authorized 20,000,000 shares; issued 4,728,267 shares in 2017 and 2016; outstanding shares, 4,420,136 in 2017 and 4,420,255 in 2016	23,641	23,641
Additional paid-in capital	20,928	20,878
Retained earnings	24,403	21,485
Accumulated other comprehensive loss	(1,825)	(2,961)
Treasury stock, at cost, 308,131 shares in 2017 and 308,012 shares in 2016	(5,517)	(5,373)
Total shareholders’ equity	61,630	57,670
Total liabilities and shareholders’ equity	$ 711,101	$ 655,184

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2017	Dec. 31, 2016
Statement Of Financial Position [Abstract]
Common stock, shares authorized	20,000,000	20,000,000
Common stock, stated value	$ 5	$ 5
Common stock, shares issued	4,728,267	4,728,267
Common stock, shares outstanding	4,420,136	4,420,255
Treasury stock, shares	308,131	308,012

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
INTEREST INCOME
Interest and fees on loans	$ 19,243	$ 18,554	$ 16,909
Interest and dividends on investment securities:
Taxable interest	2,098	2,026	2,343
Nontaxable interest	1,922	1,814	1,716
Dividends	131	117	126
Other interest income	98	44	19
Total interest and dividend income	23,492	22,555	21,113
INTEREST EXPENSE
Deposits	2,571	2,093	1,668
Short-term borrowings	7	7	4
Federal Home Loan Bank advances - short term	175	73	40
Federal Home Loan Bank advances - long term	299	633	804
Subordinated debt	138	112	91
Total interest expense	3,190	2,918	2,607
Net interest income	20,302	19,637	18,506
PROVISION FOR LOAN LOSSES (Note 3)	100	50	455
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	20,202	19,587	18,051
NON-INTEREST INCOME
Fees for customer services	2,241	2,103	2,019
Investment securities available-for-sale gains, net	7	466	75
Trading security losses, net		(47)	(11)
Mortgage banking gains, net	1,074	1,248	785
Earnings on bank-owned life insurance	1,203	328	338
Wealth management	35	95	435
Other real estate gains	170	13
Other non-interest income	436	391	268
Total non-interest income	5,166	4,597	3,909
NON-INTEREST EXPENSES
Salaries and employee benefits	10,631	10,169	9,311
Net occupancy and equipment	2,331	2,151	2,019
State and local taxes	463	455	389
FDIC insurance	199	251	304
Professional fees	786	882	830
Advertising and marketing	478	527	454
Net losses from the extinguishment of debt		242
Data processing fees	251	250	263
Other operating expenses	3,462	3,259	2,793
Total non-interest expenses	18,601	18,186	16,363
INCOME BEFORE FEDERAL INCOME TAX EXPENSE	6,767	5,998	5,597
Federal income tax expense (Note 10)	2,417	1,127	1,219
NET INCOME	$ 4,350	$ 4,871	$ 4,378
EARNINGS PER SHARE BASIC AND DILUTED (Note 1)	$ 0.99	$ 1.11	$ 0.97
CASH DIVIDENDS DECLARED PER SHARE	$ 0.39	$ 0.28	$ 0.24

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 4,350	$ 4,871	$ 4,378
Securities available for sale:
Unrealized holding gains (losses) on available-for-sale securities	2,153	(3,719)	(692)
Tax effect	(733)	1,265	235
Reclassification adjustment for net gains realized in net income	(7)	(466)	(75)
Tax effect	3	158	26
Total securities available-for-sale	1,416	(2,762)	(506)
Change in post-retirement obligations	14	39	(108)
Total other comprehensive income (loss)	1,430	(2,723)	(614)
Total comprehensive income	$ 5,780	$ 2,148	$ 3,764

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Treasury Stock
Beginning balance at Dec. 31, 2014	$ 55,852	$ 23,641	$ 20,833	$ 14,555	$ 376	$ (3,553)
Net income	4,378			4,378
Other comprehensive income (loss)	(614)				(614)
Cash dividend declared ($0.24 per share in 2015 $0.28 per share in 2016 $0.39 per share in 2017)	(1,082)			(1,082)
Treasury shares purchased net of 1 share reissued (123,065 shares in 2015 12,863 shares in 2017)	(1,850)					(1,850)
Ending balance at Dec. 31, 2015	56,684	23,641	20,833	17,851	(238)	(5,403)
Net income	4,871			4,871
Other comprehensive income (loss)	(2,723)				(2,723)
Cash dividend declared ($0.24 per share in 2015 $0.28 per share in 2016 $0.39 per share in 2017)	(1,237)			(1,237)
Equity compensation	75		45			30
Ending balance at Dec. 31, 2016	57,670	23,641	20,878	21,485	(2,961)	(5,373)
Net income	4,350			4,350
Other comprehensive income (loss)	1,430				1,430
Reclassification of certain income tax effects from accumulated other comprehensive income				294	(294)
Cash dividend declared ($0.24 per share in 2015 $0.28 per share in 2016 $0.39 per share in 2017)	(1,726)			(1,726)
Treasury shares purchased net of 1 share reissued (123,065 shares in 2015 12,863 shares in 2017)	(237)					(237)
Equity compensation	143		50			93
Ending balance at Dec. 31, 2017	$ 61,630	$ 23,641	$ 20,928	$ 24,403	$ (1,825)	$ (5,517)

Consolidated Statements of Cha7

Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement Consolidated Statements Of Changes In Shareholders Equity Parenthetical Unaudited [Abstract]
Cash dividend declared per share	$ 0.39	$ 0.28	$ 0.24
Treasury shares reissued shares			1
Treasury shares purchased shares, net of reissued			123,065
Treasury shares purchased shares	12,863

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net cash flow from operating activities
Net income	$ 4,350	$ 4,871	$ 4,378
Adjustments to reconcile net income to net cash flow from operating activities:
Depreciation, amortization and accretion	2,735	2,770	2,534
Provision for loan losses	100	50	455
Investment securities available-for-sale gains, net	(7)	(466)	(75)
Originations of mortgage banking loans held for sale	(51,730)	(61,003)	(39,191)
Proceeds from the sale of mortgage banking loans	54,578	61,730	36,575
Mortgage banking gains, net	(1,074)	(1,248)	(785)
Decrease (increase) in trading account		8,134	(273)
Earnings on bank-owned life insurance	(1,203)	(328)	(338)
Other real estate gains	(170)	(13)
Changes in:
Interest receivable	(152)	(401)	83
Interest payable	37	33	7
Deferred taxes	1,218	(129)	303
Equity compensation	143	75
Federal income tax receivable	(243)	281	(260)
Other assets and liabilities	551	(254)	433
Net cash flow from operating activities	9,133	14,102	3,846
Cash deficit from investing activities
Purchases of available-for-sale securities	(44,962)	(103,032)	(29,055)
Proceeds from sale of available-for-sale securities	44,801	50,862	12,291
Proceeds from call, maturity and principal payments on available-for-sale securities	17,255	21,203	23,708
Net increase in loans made to customers	(68,592)	(25,937)	(34,594)
Proceeds from sale of other real estate	650	121	41
Proceeds from bank-owned life insurance	1,829	280
Purchases of bank-owned life insurance	(900)
Contributions to partnership funds	(4,152)	(857)	(2,459)
Purchases of premises and equipment	(802)	(799)	(2,302)
Net cash deficit from investing activities	(54,873)	(58,159)	(32,370)
Cash flow from financing activities
Net increase in deposit accounts	46,001	43,446	39,643
Net change in short-term borrowings	(24)	203	(1,760)
Net change in Federal Home Loan Bank advances - short term	9,000	6,000	1,500
Proceeds from Federal Home Loan Bank advances - long term	12,000	2,000	4,000
Repayments of Federal Home Loan Bank advances - long term	(15,500)	(9,500)	(4,000)
Dividends paid	(1,726)	(1,237)	(1,082)
Treasury shares purchased	(237)		(1,850)
Net cash flow from financing activities	49,514	40,912	36,451
Net change in cash and cash equivalents	3,774	(3,145)	7,927
Cash and cash equivalents
Beginning of period	15,351	18,496	10,569
End of period	19,125	15,351	18,496
Cash paid during the period for:
Income taxes	1,050	625	1,010
Interest	3,153	2,885	2,600
Transfer of loans to other real estate owned	$ 480	$ 47	$ 62

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	NOTE 1 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The accounting and financial reporting policies of Cortland Bancorp (the Company), and its bank subsidiary, The Cortland Savings and Banking Company (the Bank), reflect banking industry practices and conform to U.S. generally accepted accounting principles. A summary of the significant accounting policies followed by the Company in the preparation of the accompanying consolidated financial statements is set forth below. Principles of Consolidation Industry Segment Information Use of Estimates Cash Flow Investment Securities Available-for-sale securities, other than regulatory stock, are carried at fair value with unrealized gains and losses recorded as a separate component of shareholders’ equity, net of tax. Realized gains or losses on dispositions are based on net proceeds and the adjusted carrying amount of securities sold, using the specific identification method. Interest income includes amortization of purchase premium or discount and is amortized on the level-yield method without anticipating payments, except for U.S. Government mortgage-backed and related securities where twelve months of historical prepayments are taken into consideration. The regulatory stock is carried at cost (its redeemable value) and the Company is required to hold such investments as a condition of membership in order to transact business with the Federal Home Loan Bank (FHLB) of Cincinnati and the Federal Reserve Bank (FRB). The stock is bought from and sold based upon its par value. The stock cannot be traded or sold in any market and as such is classified as restricted stock, carried at cost (its redeemable value) and evaluated by management. The stock’s value is determined by the ultimate recoverability of the par value rather than by recognizing temporary declines. The determination of whether the par value will ultimately be recovered is influenced by criteria such as the following: (a) the significance of the decline in net assets of the FHLB and FRB as compared to the capital stock amount and the length of time this situation has persisted, (b) commitments by the FHLB and FRB to make payments required by law or regulation and the level of such payments in relation to the operating performance, (c) the impact of legislative and regulatory changes on the customer base of the FHLB and FRB and (d) the liquidity position of the FHLB and FRB. The Company does not consider these investments to be other-than-temporarily impaired at December 31, 2017. Other-than-Temporary Investment Security Impairment Loans Loans Held for Sale Allowance for Loan Losses (ALLL) and Allowance for Losses on Lending Related Commitments Estimating the risk of loss and the amount of loss on any loan is necessarily subjective. Accordingly, the allowance is maintained by management at a level considered adequate to cover possible losses that are currently anticipated. Estimates of credit losses should reflect consideration of all significant factors that affect collectability of the portfolio. While historical loss experience provides a reasonable starting point, historical losses, or even recent trends in losses are not, by themselves, a sufficient basis to determine the appropriate level for the ALLL. Management will also consider any factors that are likely to cause estimated credit losses associated with the Bank’s current portfolio to differ from historical loss experience. Factors include, but are not limited to, changes in lending policies and procedures, including underwriting standards and collection, charge-offs, and recovery practices; changes in economic trends; changes in the nature and volume of the portfolio; changes in the experience and ability of lending management and the depth of staff; changes in the trend, volume and severity of past-due and classified loans, and trends in the volume of non-accrual loans; the existence and effect of any concentrations of credit and changes in the level of such concentrations; levels and trends in classification; declining trends in performance; structure and lack of performance measures and migration between risk classifications. Key risk factors and assumptions are updated to reflect actual experience and changing circumstances. While management may periodically allocate portions of the ALLL for specific problem loans, the entire ALLL is available for any charge-offs that occur. Certain collateral dependent loans are evaluated individually for impairment, based on management’s best estimate of discounted cash repayments and the anticipated proceeds from liquidating collateral. The actual timing and amount of repayments and the ultimate realizable value of the collateral may differ from management’s estimates. The expected loss for certain other commercial credits utilizes internal risk ratings. These loss estimates are sensitive to changes in the customer’s risk profile, the realizable value of collateral, other risk factors and the related loss experience of other credits of similar risk. Consumer credits generally employ statistical loss factors, adjusted for other risk indicators, applied to pools of similar loans stratified by asset type. These loss estimates are sensitive to changes in delinquency status and shifts in the aggregate risk profile. The Company maintains an allowance for losses on unfunded commercial lending commitments to provide for the risk of loss inherent in these arrangements. The allowance is computed using a methodology similar to that used to determine the allowance for loan losses. This allowance is reported as a liability on the Consolidated Balance Sheets within other liabilities, while the corresponding provision for these losses is recorded as a component of other operating expense. Loan Charge-off Policies Troubled Debt Restructurings (TDR) Premises and Equipment Other Real Estate Cash Surrender Value of Life Insurance Endorsement Split-Dollar Life Insurance Arrangement Derivative Instruments Advertising and Marketing Income Taxes Other Comprehensive (Loss) Income Per Share Amounts The following table sets forth the computation of basic earnings per common share: Years ended December 31, 2017 2016 2015 Net income (amounts in thousands) $ 4,350 $ 4,871 $ 4,378 Weighted average common shares outstanding 4,407,254 4,406,005 4,497,825 Net effect of dilutive common share equivalents 4,220 1,264 — Adjusted average shares outstanding - dilutive 4,411,474 4,407,269 4,497,825 Basic earnings per share $ 0.99 $ 1.11 $ 0.97 Dilutive earnings per share $ 0.99 $ 1.11 $ 0.97 Off-Balance Sheet Financial Instruments Reclassifications Authoritative Accounting Guidance In May 2014, the Financial Accounting Standards Board (FASB) issued ASU 2014-09, Revenue from Contracts with Customers reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, this Update specifies the accounting for certain costs to obtain or fulfill a contract with a customer and expands disclosure requirements for revenue recognition. This Update is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. The Company is currently evaluating the impact the adoption of the standard will have on the Company’s financial position or results of operations. In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers (Topic 606). The amendments in this Update defer the effective date of ASU 2014-09 for all entities by one year. Public business entities, certain not-for-profit entities, and certain employee benefit plans should apply the guidance in ASU 2014-09 to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. All other entities should apply the guidance in ASU 2014-09 to annual reporting periods beginning after December 15, 2018, and interim reporting periods within annual reporting periods beginning after December 15, 2019. This Update is not expected to have a significant impact on the Company’s financial statements. In January 2016, the FASB issued ASU 2016-01, Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments We expect to recognize a one-time cumulative effect adjustment to the allowance for loan losses as of the beginning of the first reporting period in which the new standard is effective, but cannot yet determine the magnitude of any such one-time adjustment or the overall impact of the new guidance on the consolidated financial statements. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805), Clarifying the Definition of a Business In February 2017, the FASB issued ASU 2017-05, Other Income—Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20) This Update is not expected to have a significant impact on the Company’s financial statements. In March 2017, the FASB issued ASU 2017-08, Receivables – Nonrefundable Fees and Other Costs (Subtopic 310-20). The amendments in this Update shorten the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. For public business entities, the amendments in this Update are effective for fiscal years, and interim periods within those fiscal years, beg For all other entities, the amendments are effective for fiscal years beginning after December 15, 2019, and interim periods within fiscal years beginning after December 15, 2020. 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 that interim period. An entity should apply the amendments in this Update on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. Additionally, in the period of adoption, an entity should provide disclosures about a change in accounting principle. This Update is not expected to have a significant impact on the Company’s financial statements. In May 2017, the FASB issued ASU 2017-09, Compensation – Stock Compensation (Topic 718) In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging (Topic 850) should apply a cumulative-effect adjustment related to eliminating the separate measurement of ineffectiveness to accumulated other comprehensive income with a corresponding adjustment to the opening balance of retained earnings as of the beginning of the fiscal year that an entity adopts the amendments in this Update. The amended presentation and disclosure guidance is required only prospectively. This Update is not expected to have a significant impact on the Company’s financial statements. In January 2018, the FASB issued ASU 2018-01, Leases (Topic 842) This Update is not expected to have a significant impact on the Company’s financial statements. In February 2018, the FASB issued ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220) An Act to Provide for Reconciliation Pursuant to Titles II and V of the Concurrent Resolution on the Budget for Fiscal Year 2018 (Tax Cuts and Jobs Act)

Investment Securities

Investment Securities	12 Months Ended
	Dec. 31, 2017
Investments Debt And Equity Securities [Abstract]
Investment Securities	NOTE 2 - INVESTMENT SECURITIES The following is a summary of investment securities available-for-sale: (Amounts in thousands) December 31, 2017 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. Government agencies and corporations $ 3,344 $ 1 $ 140 $ 3,205 Obligations of states and political subdivisions 71,700 740 324 72,116 U.S. Government-sponsored mortgage-backed securities 69,066 6 1,404 67,668 U.S. Government-sponsored collateralized mortgage obligations 6,463 — 161 6,302 U.S. Government-guaranteed small business administration pools 9,911 — 256 9,655 Trust preferred securities 1,618 — 723 895 Total debt securities 162,102 747 3,008 159,841 Federal Home Loan Bank (FHLB) stock 2,355 — — 2,355 Federal Reserve Bank (FRB) stock 226 — — 226 Total regulatory stock 2,581 — — 2,581 Total investment securities available-for-sale $ 164,683 $ 747 $ 3,008 $ 162,422 (Amounts in thousands) December 31, 2016 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. Government agencies and corporations $ 8,165 $ 3 $ 180 $ 7,988 Obligations of states and political subdivisions 68,219 582 2,031 66,770 U.S. Government-sponsored mortgage-backed securities 81,281 32 1,546 79,767 U.S. Government-sponsored collateralized mortgage obligations 9,504 — 155 9,349 U.S. Government-guaranteed small business administration pools 12,255 1 317 11,939 Trust preferred securities 1,620 — 795 825 Total debt securities 181,044 618 5,024 176,638 Federal Home Loan Bank (FHLB) stock 2,355 — — 2,355 Federal Reserve Bank (FRB) stock 226 — — 226 Total regulatory stock 2,581 — — 2,581 Total investment securities available-for-sale $ 183,625 $ 618 $ 5,024 $ 179,219 Trading securities historically had been an investment in obligations of states and political subdivisions, government and agency bonds, short-term government bonds and included cash equivalent investments for trading liquidity. In the second quarter of 2016, management decided to cease its trading activities and liquidated the investments that were in the trading account. The current interest rate and economic environment mitigated the opportunities to generate revenues with a trading strategy. Both realized and unrealized gains and losses for the years ended December 31, 2016 and 2015 are included in the Consolidated Statements of Income. (Amounts in thousands) 2016 2015 Unrealized gains — $ 7 Unrealized losses — (3 ) Net unrealized gains — 4 Net realized losses (47 ) (15 ) Trading securities losses, net $ (47 ) $ (11 ) The amortized cost and fair value of debt securities at December 31, 2017, by contractual maturity, are shown below. Actual maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. (Amounts in thousands) Amortized Cost Fair Value Due in one year or less $ 10 $ 10 Due after one year through five years 860 894 Due after five years through ten years 8,437 8,315 Due after ten years 77,266 76,652 Total 86,573 85,871 U.S. Government-sponsored mortgage-backed and related securities 75,529 73,970 Total debt securities $ 162,102 $ 159,841 The following table sets forth the proceeds, gains and losses realized on securities sold or called for each of the years ended December 31: (Amounts in thousands) 2017 2016 2015 Proceeds on securities sold $ 44,801 $ 50,862 $ 12,291 Gross realized gains 524 725 135 Gross realized losses 517 259 60 Investment securities with a carrying value of approximately $105.0 million at December 31, 2017 and $111.5 million at December 31, 2016 were pledged to secure deposits and for other purposes. The remaining securities provide an adequate level of liquidity. The following is a summary of the fair value of securities with unrealized losses and an aging of those unrealized losses at December 31, 2017: (Amounts in thousands) Less than 12 Months 12 Months or More Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. Government agencies and corporations $ — $ — $ 2,860 $ 140 $ 2,860 $ 140 Obligations of states and political subdivisions 7,430 24 18,066 300 25,496 324 U.S. Government-sponsored mortgage-backed securities 24,888 241 40,968 1,163 65,856 1,404 U.S. Government-sponsored collateralized mortgage obligations — — 6,302 161 6,302 161 U.S. Government-guaranteed small business administration pools 2,532 38 7,123 218 9,655 256 Trust preferred securities — — 895 723 895 723 Total $ 34,850 $ 303 $ 76,214 $ 2,705 $ 111,064 $ 3,008 The above table represents 83 investment securities where the fair value is less than the related amortized cost. The following is a summary of the fair value of securities with unrealized losses and an aging of those unrealized losses at December 31, 2016: (Amounts in thousands) Less than 12 Months 12 Months or More Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. Government agencies and corporations $ 7,643 $ 180 $ — $ — $ 7,643 $ 180 Obligations of states and political subdivisions 41,668 2,031 — — 41,668 2,031 U.S. Government-sponsored mortgage-backed securities 68,386 1,487 2,044 59 70,430 1,546 U.S. Government-sponsored collateralized mortgage obligations 9,350 155 — — 9,350 155 U.S. Government-guaranteed small business administration pools 8,757 317 — — 8,757 317 Trust preferred securities — — 825 795 825 795 Total $ 135,804 $ 4,170 $ 2,869 $ 854 $ 138,673 $ 5,024 The above table represents 122 investment securities where the current value is less than the related amortized cost. The trust preferred securities with an unrealized loss represent pools of trust preferred debt issued primarily by bank holding companies. The unrealized losses on the Company’s investment in U.S. Government agencies and corporations, obligations of states and political subdivisions, U.S. Government-sponsored-mortgage-backed securities, U.S. Government-sponsored collateralized mortgage obligations, and U.S. Government-guaranteed small business administration pools were caused by changes in market rates and related spreads. It is expected that the securities would not be settled at less than the amortized cost of the Company’s investment because the decline in fair value is attributable to changes in interest rates and relative spreads and not credit quality. Also, except for the securities described below, the Company does not intend to sell those investments and it is not more-likely-than-not that the Company will be required to sell the investments before recovery of its amortized cost basis less any current period credit loss. The Company does not consider these investments to be other-than-temporarily impaired at December 31, 2017. Securities Deemed to be Other-Than-Temporarily Impaired The Company reviews investment debt securities on an ongoing basis for the presence of other-than-temporary impairment (OTTI) with formal reviews performed quarterly. For debt securities in an unrealized loss position, management assesses whether (a) it has the intent to sell the debt security or (b) it is more-likely-than-not that it will be required to sell the debt security before its anticipated recovery. If either of these conditions is met, an OTTI on the security must be recognized. In instances in which a determination is made that a credit loss (defined as the difference between the present value of the cash flows expected to be collected and the amortized cost basis) exists but the entity does not intend to sell the debt security and it is not more-likely-than-not that the entity will be required to sell the debt security before the anticipated recovery of its remaining amortized cost basis (i.e., the amortized cost basis less any current-period credit loss), the Company presents the amount of the OTTI recognized in the Consolidated Statements of Income. In these instances, the impairment is separated into (a) the amount of the total impairment related to the credit loss, and (b) the amount of the total impairment related to all other factors. The amount of the total OTTI related to the credit loss is recognized in earnings. The amount of the total impairment related to all other factors is recognized in other comprehensive income. The total other-than-temporary impairment is presented in the Consolidated Statements of Income with an offset for the amount of the total other-than-temporary impairment that is recognized in other comprehensive income. As more fully disclosed in Note 11, the Company assessed the impairment of certain securities currently in an illiquid market. The Company records impairment credit losses in earnings (before tax) and non-credit impairment losses in other comprehensive (loss) income (before tax). Through the impairment assessment process, there was no impairment loss recognized in the years ended December 31, 2017, 2016 or 2015. The following provides a cumulative roll forward of credit losses recognized in earnings for trust preferred securities held for the years ended: (Amounts in thousands) December 31, 2017 2016 2015 Beginning balance $ 140 $ 140 $ 140 Reduction for debt securities for which other-than-temporary impairment has been previously recognized and there is no related other comprehensive income — — — Credit losses on debt securities for which other-than-temporary impairment has not been previously recognized — — — Additional credit losses on debt securities for which other-than-temporary impairment was previously recognized — — — Sale of debt securities — Ending balance $ 140 $ 140 $ 140 At December 31, 2017 and December 31, 2016, there were $895,000 and $825,000, respectively, of investment securities considered to be in non-accrual status. This balance is comprised of two trust preferred securities at December 31, 2017 and 2016. As a result of the delay in the collection of interest payments, management placed these securities in non-accrual status. Current estimates indicate that the interest payment delays may exceed ten years.

Loans and Allowance for Loan Lo

Loans and Allowance for Loan Losses	12 Months Ended
	Dec. 31, 2017
Receivables [Abstract]
Loans and Allowance for Loan Losses	NOTE 3 - LOANS AND ALLOWANCE FOR LOAN LOSSES The Company, through the Bank, grants residential, consumer and commercial loans to customers located primarily in Northeastern Ohio and Western Pennsylvania. The following represents the composition of the loan portfolio for the period ending: (Amounts in thousands) December 31, 2017 2016 Balance % Balance % Commercial $ 113,341 23.3 $ 96,281 22.9 Commercial real estate 283,135 58.1 238,692 56.9 Residential real estate 62,071 12.7 57,008 13.6 Consumer - home equity 26,018 5.3 25,061 6.0 Consumer - other 2,925 0.6 2,726 0.6 Total loans $ 487,490 $ 419,768 Management has an established methodology to determine the adequacy of the allowance for loan losses that assesses the risks and losses inherent in the loan portfolio. For purposes of determining the allowance for loan losses, the Company has segmented loans in the portfolio by product type. Loans are segmented into the following pools: commercial loans, commercial real estate loans, residential real estate loans and consumer loans. The pools of commercial real estate loans and commercial loans are also broken down further by industry sectors when analyzing the related pools. Using the largest concentrations as the qualifier, these industry sectors include non-residential buildings; skilled nursing and nursing care; residential real estate lessors, agents and managers; hotel and motels, and trucking. The Company also sub-segments the consumer loan portfolio into the following two classes: home equity loans and other consumer loans. Historical loss percentages for each risk category are calculated and used as the basis for calculating allowance allocations. These historical loss percentages are calculated over multiple periods for all portfolio segments. Management evaluates these results and utilizes the most reflective period in the calculation. Certain qualitative factors are then added to the historical allocation percentage to get the adjusted factor. These factors include, but are not limited to, the following: Factor Considered: Risk Trend: Levels of and trends in charge-offs, classifications and non-accruals Stable Trends in volume and terms Increasing Changes in lending policies and procedures Stable Experience, depth and ability of management, including loan review function Stable Economic trends, including valuation of underlying collateral Stable Concentrations of credit Decreasing The following factors are analyzed and applied to loans internally graded with higher risk credit in addition to the above factors for non-classified loans: Factor Considered: Risk Trend: Levels and trends in classification Stable Declining trends in financial performance Stable Structure and lack of performance measures Increasing Migration between risk categories Stable The provision charged to operations can be allocated to a loan classification either as a positive or negative value as a result of any material changes to: net charge-offs or recovery which influence the historical allocation percentage, qualitative risk factors or loan balances. The following is an analysis of changes in the allowance for loan losses for the periods ended: (Amounts in thousands) December 31, 2017 Commercial Commercial real estate Residential real estate Consumer - home equity Consumer - other Total Balance at beginning of period $ 1,394 $ 3,072 $ 163 $ 150 $ 89 $ 4,868 Loan charge-offs — (654 ) (14 ) (26 ) (146 ) (840 ) Recoveries 388 — 5 10 47 450 Net loan recoveries (charge-offs) 388 (654 ) (9 ) (16 ) (99 ) (390 ) Provision charged to operations (191 ) 284 (37 ) (64 ) 108 100 Balance at end of period $ 1,591 $ 2,702 $ 117 $ 70 $ 98 $ 4,578 (Amounts in thousands) December 31, 2016 Commercial Commercial real estate Residential real estate Consumer - home equity Consumer - other Total Balance at beginning of period $ 1,977 $ 2,926 $ 153 $ 52 $ 86 $ 5,194 Loan charge-offs — (287 ) (35 ) (144 ) (148 ) (614 ) Recoveries 117 35 2 23 61 238 Net loan recoveries (charge-offs) 117 (252 ) (33 ) (121 ) (87 ) (376 ) Provision charged to operations (700 ) 398 43 219 90 50 Balance at end of period $ 1,394 $ 3,072 $ 163 $ 150 $ 89 $ 4,868 (Amounts in thousands) December 31, 2015 Commercial Commercial real estate Residential real estate Consumer - home equity Consumer - other Total Balance at beginning of period $ 2,064 $ 2,754 $ 229 $ 60 $ 95 $ 5,202 Loan charge-offs (470 ) (84 ) (45 ) — (124 ) (723 ) Recoveries 134 10 37 17 62 260 Net loan recoveries (charge-offs) (336 ) (74 ) (8 ) 17 (62 ) (463 ) Provision charged to operations 249 246 (68 ) (25 ) 53 455 Balance at end of period $ 1,977 $ 2,926 $ 153 $ 52 $ 86 $ 5,194 The total allowance reflects management’s estimate of loan losses inherent in the loan portfolio at the Consolidated Balance Sheet date. The following tables present a full breakdown by portfolio classification, the changes in the allowance for loan losses and the recorded investment in loans for the periods ended December 31, 2017 and 2016: (Amounts in thousands) December 31, 2017 Commercial Commercial real estate Residential real estate Consumer - home equity Consumer - other Total Allowance for loan losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ 625 $ — $ — $ — $ — $ 625 Collectively evaluated for impairment 966 2,702 117 70 98 3,953 Total ending allowance balance $ 1,591 $ 2,702 $ 117 $ 70 $ 98 $ 4,578 Loan Portfolio: Individually evaluated for impairment $ 5,581 $ 4,664 $ — $ — $ — $ 10,245 Collectively evaluated for impairment 107,760 278,471 62,071 26,018 2,925 477,245 Total ending loan balance $ 113,341 $ 283,135 $ 62,071 $ 26,018 $ 2,925 $ 487,490 (Amounts in thousands) December 31, 2016 Commercial Commercial real estate Residential real estate Consumer - home equity Consumer - other Total Allowance for loan losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ — $ 178 $ — $ — $ — $ 178 Collectively evaluated for impairment 1,394 2,894 163 150 89 4,690 Total ending allowance balance $ 1,394 $ 3,072 $ 163 $ 150 $ 89 $ 4,868 Loan Portfolio: Individually evaluated for impairment $ 106 $ 6,860 $ — $ — $ — $ 6,966 Collectively evaluated for impairment 96,175 231,832 57,008 25,061 2,726 412,802 Total ending loan balance $ 96,281 $ 238,692 $ 57,008 $ 25,061 $ 2,726 $ 419,768 The increase in the total allowance for commercial loans is primarily due to volume of loans in this category. The decrease in the overall allowance in commercial real estate loans is due mainly to a decrease in the overall historical factor when analyzing the pool broken out by industry sectors, which help to offset the full impact of the loan charge-offs. The decrease in residential real estate and consumer – home equity allowance is due primarily to historical factors. Along with the impact of classified loans, the amount of net charge-offs impacts the provision charged to operations for any category of loans. Charge-offs affect the historical rate applied to each category, and the amount needed to replenish the charge off to the allowance. This impacted all categories other than commercial loans. The following tables represent credit exposures by internally assigned grades for years ended December 31, 2017 and 2016, respectively. The grading analysis estimates the capability of the borrower to repay the contractual obligations of the loan agreements as scheduled or at all. The Company’s internal credit risk grading system is based on experiences with similarly graded loans. The Company’s internally assigned grades are as follows: • Pass – loans which are protected by the current net worth and paying capacity of the obligor or by the value of the underlying collateral. Within this category, there are grades of exceptional, quality, acceptable and pass monitor. • Special Mention – loans where a potential weakness or risk exists, which could cause a more serious problem if not corrected. • Substandard – loans that have a well-defined weakness based on objective evidence and are characterized by the distinct possibility that the Bank will sustain some loss if the deficiencies are not corrected. • Doubtful – loans classified as doubtful have all the weaknesses inherent in a substandard asset but with the severity which makes collection in full highly questionable and improbable, based on existing circumstances. • Loss – loans classified as a loss are considered uncollectible, or of such value that continuance as an asset is not warranted. This rating does not mean that the assets have no recovery or salvage value but rather that the assets should be charged off now, even though partial or full recovery may be possible in the future. The following is a summary of credit quality indicators by internally assigned grade as of December 31, 2017 and 2016. (Amounts in thousands) Commercial Commercial real estate December 31, 2017 Pass $ 100,436 $ 252,960 Special Mention 4,836 24,307 Substandard 8,069 5,868 Doubtful — — Ending Balance $ 113,341 $ 283,135 (Amounts in thousands) Commercial Commercial real estate December 31, 2016 Pass $ 80,644 $ 208,337 Special Mention 12,836 22,633 Substandard 2,801 7,722 Doubtful — — Ending Balance $ 96,281 $ 238,692 The Company evaluates the classification of consumer, home equity and residential loans primarily on a pooled basis. If the Company becomes aware that adverse or distressed conditions exist that may affect a particular loan, the loan is downgraded following the above definitions of special mention and substandard. Nonaccrual loans in these categories are evaluated for charge off or charge down, and the remaining balance has the same allowance factor as pooled loans. The following is a summary of consumer credit exposure as of December 31, 2017 and 2016. (Amounts in thousands) Residential real estate Consumer - home equity Consumer- other December 31, 2017 Performing $ 61,824 $ 25,889 $ 2,925 Nonperforming 247 129 — Total $ 62,071 $ 26,018 $ 2,925 (Amounts in thousands) Residential real estate Consumer - home equity Consumer- other December 31, 2016 Performing $ 55,743 $ 25,006 $ 2,726 Nonperforming 1,265 55 — Total $ 57,008 $ 25,061 $ 2,726 Loans are considered to be nonperforming when they become 90 days past due or on nonaccrual status, though the Company may be receiving partial payments of interest and partial repayments of principal on such loans. When a loan is placed in non-accrual status, previously accrued but unpaid interest is recorded against interest income. Loans in foreclosure are considered nonperforming. At December 31, 2017, there were $378,000 of loans in the process of foreclosure. The following is a summary of classes of loans on non-accrual status as of: (Amounts in thousands) December 31, 2017 2016 Commercial $ — $ — Commercial real estate 506 1,458 Residential real estate 247 1,265 Consumer: Consumer - home equity 129 55 Consumer - other — — Total $ 882 $ 2,778 Gross income that should have been recorded in income on nonaccrual loans was $57,000, $160,000 and $293,000 for the years ended December 31, 2017, 2016 and 2015, respectively. Actual interest included in income on these nonaccrual loans amounts to $16,000, $41,000 and $26,000 in 2017, 2016 and 2015, respectively. Troubled Debt Restructuring Nonperforming loans also include certain loans that have been modified in troubled debt restructurings (TDRs) where economic concessions have been granted to borrowers who have experienced or are expected to experience financial difficulties. These concessions typically result from the Company’s loss mitigation activities and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance or other actions. Certain TDRs are classified as nonperforming at the time of restructure and may only be returned to performing status after considering the borrower’s sustained repayment performance for a reasonable period, generally six months. There were no loans modified as TDRs during the years ended December 31, 2017 and 2016. The following presents, by class, information related to loans modified in a TDR during the periods ended December 31, 2015. (Dollar amounts in thousands) December 31, 2015 Number of contracts Pre-modification recorded investment Post-modification recorded investment Increase in the allowance Commercial real estate 2 $ 3,154 $ 3,154 $ — Subsequently defaulted — $ — In 2015, the two commercial real estate loans were to the same customer. There was no interest rate impact, only a change in loan terms to six months interest only. None of the loans that were classified as TDRs in 2015 have subsequently defaulted in the year ended December 31, 2016. The following is an aging analysis of the recorded investment of past due loans as of the periods ended December 31, 2017 and 2016: (Amounts in thousands) 30-59 Days Past Due 60-89 Days Past Due 90 Days Or Greater Total Past Due Current Total Loans Recorded Investment > 90 Days and Accruing December 31, 2017 Commercial $ — $ — $ — $ — $ 113,341 $ 113,341 $ — Commercial real estate 173 12 390 575 282,560 283,135 — Residential real estate 240 29 216 485 61,586 62,071 — Consumer: Consumer - home equity — 82 28 110 25,908 26,018 — Consumer - other 15 — — 15 2,910 2,925 — Total $ 428 $ 123 $ 634 $ 1,185 $ 486,305 $ 487,490 $ — (Amounts in thousands) 30-59 Days Past Due 60-89 Days Past Due 90 Days Or Greater Total Past Due Current Total Loans Recorded Investment > 90 Days and Accruing December 31, 2016 Commercial $ 377 $ — $ — $ 377 $ 95,904 $ 96,281 $ — Commercial real estate 1,189 83 1,347 2,619 236,073 238,692 — Residential real estate 58 9 1,184 1,251 55,757 57,008 — Consumer: Consumer - home equity — 46 55 101 24,960 25,061 — Consumer - other 13 — — 13 2,713 2,726 — Total $ 1,637 $ 138 $ 2,586 $ 4,361 $ 415,407 $ 419,768 $ — An impaired loan is a loan on which, based on current information and events, it is probable that a creditor will be unable to collect all amounts due (including both interest and principal) according to the contractual terms of the loan agreement. However, an insignificant delay or insignificant shortfall in amount of payments on a loan does not indicate that the loan is impaired. When a loan is determined to be impaired, impairment should be measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate. However, as a practical expedient, the Company will measure impairment based on a loan’s observable market price, or the fair value of the collateral if the loan is collateral dependent. The following are the criteria for selecting individual loans / relationships for impairment analysis. Non-homogenous loans which meet the criteria below are evaluated quarterly. • All borrowers whose loans are classified doubtful by examiners and internal loan review • All loans on non-accrual status • Any loan in foreclosure • Any loan with a specific reserve • Any loan determined to be collateral dependent for repayment • Loans classified as troubled debt restructuring Commercial loans and commercial real estate loans evaluated for impairment are excluded from the general pool of loans in the ALLL calculation regardless if a specific reserve was determined. If management determines that the value of the impaired loan is less than the recorded investment in the loan (net of previous charge-offs, deferred loan fees or costs and unamortized premium or discount), impairment is recognized through an allowance estimate or a charge-off to the allowance. The following table presents the recorded investment and unpaid principal balances for impaired loans, excluding homogenous loans for which impaired analyses are not necessarily performed, with the associated allowance amount, if applicable, at December 31, 2017 and 2016. Also presented are the average recorded investments in the impaired balances and interest income recognized after impairment for the years ended December 31, 2017, 2016 and 2015. (Amounts in thousands) Recorded Investment Unpaid Principal Balance Related Allowance December 31, 2017 With no related allowance recorded: Commercial $ 65 $ 65 $ — Commercial real estate 4,664 4,742 — With an allowance recorded: Commercial 5,516 5,516 625 Commercial real estate — — — Total: Commercial $ 5,581 $ 5,581 $ 625 Commercial real estate $ 4,664 $ 4,742 $ — (Amounts in thousands) Recorded Investment Unpaid Principal Balance Related Allowance December 31, 2016 With no related allowance recorded: Commercial $ 106 $ 106 $ — Commercial real estate 5,681 5,789 — With an allowance recorded: Commercial — — — Commercial real estate 1,179 1,179 178 Total: Commercial $ 106 $ 106 $ — Commercial real estate $ 6,860 $ 6,968 $ 178 (Amounts in thousands) Average Recorded Investment Interest Income Recognized December 31, 2017 With no related allowance recorded: Commercial $ 85 $ 6 Commercial real estate 5,062 291 With an allowance recorded: Commercial 460 — Commercial real estate 527 — Total: Commercial $ 545 $ 6 Commercial real estate $ 5,589 $ 291 (Amounts in thousands) Average Recorded Investment Interest Income Recognized December 31, 2016 With no related allowance recorded: Commercial $ 146 $ 8 Commercial real estate 6,072 335 With an allowance recorded: Commercial 279 — Commercial real estate 1,209 85 Total: Commercial $ 425 $ 8 Commercial real estate $ 7,281 $ 420 (Amounts in thousands) Average Recorded Investment Interest Income Recognized December 31, 2015 With no related allowance recorded: Commercial $ 322 $ 13 Commercial real estate 4,842 181 With an allowance recorded: Commercial 1,341 — Commercial real estate 1,160 84 Total: Commercial $ 1,663 $ 13 Commercial real estate $ 6,002 $ 265

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2017
Property Plant And Equipment [Abstract]
Premises and Equipment	NOTE 4 - PREMISES AND EQUIPMENT The following is a summary of premises and equipment: (Amounts in thousands) December 31, 2017 2016 Land $ 2,746 $ 2,746 Premises 9,914 9,846 Equipment 9,711 9,312 Leasehold improvements 264 222 Total premises and equipment 22,635 22,126 Less accumulated depreciation 13,597 12,994 Net book value $ 9,038 $ 9,132 Depreciation expense was $880,000 in 2017, $835,000 in 2016 and $792,000 in 2015.

Deposits

Deposits	12 Months Ended
	Dec. 31, 2017
Deposits [Abstract]
Deposits	NOTE 5 - DEPOSITS The following is a summary of interest-bearing deposits: (Amounts in thousands) December 31, 2017 2016 Demand $ 50,410 $ 45,158 Money market 171,783 133,783 Savings 113,078 112,817 Time: In denominations $250,000 or under 108,761 113,368 In denominations of over $250,000 18,528 17,499 Total $ 462,560 $ 422,625 Stated maturities of time deposits were as follows: (Amounts in thousands) 2017 2018 $ 80,665 2019 9,557 2020 9,699 2021 13,301 2022 6,353 2023 and beyond 7,714 Total $ 127,289 The following is a summary of time deposits of $100,000 or more by remaining maturities: (Amounts in thousands) December 31, 2017 Certificates of Deposit Other Time Deposits Total Three months or less $ 11,375 $ 15,199 $ 26,574 Three to six months 4,698 7,962 12,660 Six to twelve months 1,678 3,192 4,870 One through five years 13,527 4,587 18,114 Over five years 3,249 769 4,018 Total $ 34,527 $ 31,709 $ 66,236

Federal Home Loan Bank (FHLB) A

Federal Home Loan Bank (FHLB) Advances and Other Short-Term Borrowings	12 Months Ended
	Dec. 31, 2017
Federal Home Loan Bank Advances And Other Borrowings [Abstract]
Federal Home Loan Bank (FHLB) Advances and Other Short-Term Borrowings	NOTE 6 - FEDERAL HOME LOAN BANK (FHLB) ADVANCES AND OTHER SHORT-TERM BORROWINGS The following is a summary of FHLB advances and other short-term borrowings: (Amounts in thousands) December 31, Weighted Average Interest Rate 2017 2016 FHLB advances - long-term: Fixed rate payable and convertible fixed rate FHLB advances, with monthly interest payments: Due in 2017 $ — $ 15,500 Due in 2018 1.22 % 4,000 2,000 Due in 2019 1.60 % 6,000 — Due in 2020 1.70 % 4,000 — Total FHLB advances - long-term 1.51 % 14,000 17,500 FHLB advances - short-term: Short-term 1.29 % 12,000 6,000 Cash management 1.44 % 20,000 17,000 Total FHLB advances - short-term 1.38 % 32,000 23,000 Total FHLB advances 1.42 % 46,000 40,500 Other short-term borrowings: Securities sold under repurchase agreements 0.34 % 2,678 2,702 Total FHLB advances and other short-term borrowings 1.36 % $ 48,678 $ 43,202 The following is a summary of FHLB advances – short term: (Amounts in thousands) 2017 2016 2015 Average balance during the year $ 16,917 $ 13,550 $ 14,674 Average interest rate during the year 1.03 % 0.54 % 0.27 % Maximum month-end balance during the year $ 32,000 $ 23,000 $ 23,500 Weighted average interest rate at year end 1.38 % 0.59 % 0.37 % At December 31, 2017, FHLB advances were collateralized by FHLB stock owned by the Bank with a carrying value of $2.4 million, a blanket lien against the Bank’s qualified mortgage loan portfolio of $64.7 million, $19.8 million in mortgage-backed securities and $9.7 million in U.S. Government-guaranteed small business administration pools. In comparison, in the prior year FHLB advances were collateralized by FHLB stock owned by the Bank with a carrying value of $2.4 million, a blanket lien against the Bank’s qualified mortgage loan portfolio of $61.2 million, $16.1 million in mortgage-backed securities and $11.9 million in U.S. Government-guaranteed small business administration pools. Maximum borrowing capacities from FHLB totaled $57.0 million and $56.3 million at December 31, 2017 and 2016, respectively. At December 31, 2017 and 2016, there were $0 and $11.5 million FHLB fixed rate advances that were putable on or after certain specified dates at the option of the FHLB. The following is a summary of other short-term borrowings: (Amounts in thousands) 2017 2016 2015 Average balance during the year $ 2,018 $ 2,249 $ 4,082 Average interest rate during the year 0.33 % 0.31 % 0.10 % Maximum month-end balance during the year $ 2,678 $ 3,608 $ 7,541 Weighted average interest rate at year end 0.34 % 0.33 % 0.11 % Securities sold under repurchase agreements represent arrangements the Bank has entered into with certain deposit customers within its local market areas. These borrowings are collateralized with securities. At December 31, 2017 and 2016, securities allocated for this purpose, owned by the Bank and held in safekeeping accounts at independent correspondent banks, amounted to $3.4 million and $2.9 million, respectively. The following table provides additional detail regarding other short-term borrowings: (Amounts in thousands) Repurchase Agreements (Sweep) Accounted for as Secured Borrowings At December 31, 2017 At December 31, 2016 Remaining Contractual Maturity of the Agreements Overnight and Continuous Overnight and Continuous Repurchase agreements: U.S. Government-sponsored mortgage-backed securities $ 3,414 $ 2,898 U.S. Government-sponsored collateralized mortgage obligations — — Total collateral carrying value $ 3,414 $ 2,898 Total short-term borrowings $ 2,678 $ 2,702

Subordinated Debt

Subordinated Debt	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Subordinated Debt	NOTE 7 - SUBORDINATED DEBT In July 2007, a trust formed by the Company issued $5.0 million of floating rate trust preferred securities as part of a pooled offering of such securities due December 2037. The Company owns all $155,000 of the common securities issued by the trust. The securities bear interest at the 3-month LIBOR rate plus 1.45%. The rates at December 31, 2017 and 2016 were 3.04% and 2.41%, respectively. The Company issued subordinated debentures to the trust in exchange for the proceeds of the trust preferred offering. The debentures represent the sole assets of this trust. The Company may redeem the subordinated debentures, in whole or in part, at par. The trust is not consolidated with the Company’s financial statements. Accordingly, the Company does not report the securities issued by the trust as liabilities, but instead reports as liabilities the subordinated debentures issued by the Company and held by the trust. The subordinated debentures qualify as Tier 1 capital for regulatory purposes in determining and evaluating the Company’s capital adequacy.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2017
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	NOTE 8 – COMMITMENTS AND CONTINGENCIES The Bank occupies office facilities under operating leases extending to 2021. Most of these leases contain an option to renew at the then fair rental value for periods of five and ten years. These options enable the Bank to retain use of facilities in desirable operating areas. In most cases, management expects that in the normal course of business, leases will be renewed or replaced by other leases. Rental and lease expense was $230,000 for 2017, $183,000 for 2016 and $168,000 for 2015. The following is a summary of remaining future minimum lease payments under current non-cancelable operating leases for office facilities: (Amounts in thousands) Years ending: December 31, 2018 $ 175 December 31, 2019 124 December 31, 2020 116 December 31, 2021 62 December 31, 2022 — Total $ 477 At December 31, 2017, the Bank was required to maintain aggregate cash reserves amounting to $5 million in order to satisfy federal regulatory requirements. The reserves are held in useable vault cash and interest-earning balances at the Federal Reserve Bank of Cleveland. The Bank grants commercial and industrial loans, commercial and residential mortgage loans, and consumer loans to customers in Northeastern Ohio and Western Pennsylvania. Although the Bank has a diversified portfolio, exposure to credit loss can be adversely impacted by downturns in local economic and employment conditions. Approximately 0.30% of total loans are unsecured at December 31, 2017 and approximately 0.36% at December 31 2016. The Bank is a 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, standby letters of credit and financial guarantees. Such instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized on the Consolidated Balance Sheets. The contract or notional amounts on those instruments reflect the extent of involvement the Company has in particular classes of financial instruments. In the event of nonperformance by the other party, the Company’s exposure to credit loss on these financial instruments is represented by the contract or notional amount of the instrument. The Company uses the same credit policies in making commitments and conditional obligations as it does for instruments recorded on the balance sheet. The amount and nature of collateral obtained, if any, is based on management’s credit evaluation. The following is a summary of such contractual commitments: (Amounts in thousands) December 31, 2017 2016 Commitments to extend credit: Fixed rate $ 32,749 $ 18,709 Variable rate 60,508 57,176 Standby letters of credit 3,600 412 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. Generally, these financial arrangements have fixed expiration dates or other termination clauses and may require payment of a fee. Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Company evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Company 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. The increase in commitments is in line with the Company’s increased focus on commercial and industrial lending, and specifically lines of credit. The Company also offers limited overdraft protection as a non-contractual courtesy which is available to businesses as well as individually/jointly owned accounts in good standing for personal or household use. The Company reserves the right to discontinue this service without prior notice. The following table is a summary of overdraft protection for the periods indicated: (Amounts in thousands) December 31, 2017 2016 Overdraft protection available on depositors' accounts $ 9,637 $ 9,655 Balance of overdrafts included in loans 103 80 Average daily balance of overdrafts 115 105 Average daily balance of overdrafts as a percentage of available 1.19 % 1.09 % Customer Derivatives - Interest Rates Swaps/Floors – The Company enters into interest rate swaps that allow our commercial loan customers to effectively convert a variable-rate commercial loan agreement to a fixed-rate commercial loan agreement. Under these agreements, the Company enters into a variable-rate loan agreement with a customer in addition to an interest rate swap agreement, which serves to effectively swap the customer’s variable-rate into a fixed-rate. The Company then enters into a corresponding swap agreement with a third party in order to economically hedge its exposure through the customer agreement. The interest rate swaps with both the customers and third parties are not designated as hedges under FASB ASC 815 and are not marked to market through earnings. As the interest rate swaps are structured to offset each other, changes to the underlying benchmark interest rates considered in the valuation of these instruments do not result in an impact to earnings; however, there may be fair value adjustments related to credit quality variations between counterparties, which may impact earnings as required by FASB ASC 820. There was no effect on earnings in any periods presented. At December 31, 2017 and 2016, the Company had one U.S. Government-sponsored mortgage-backed security pledged for collateral on its interest rate swaps with the third party financial institution with a fair value $1.4 million and $1.7 million, respectively. Summary information regarding these derivatives is presented below: (Amounts in thousands) Notional Amount Fair Value December 31, December 31, 2017 2016 Interest Rate Paid Interest Rate Received 2017 2016 Customer interest rate swap Maturing in 2020 $ 2,504 $ 2,594 1 Mo. Libor + Margin Fixed $ (16 ) $ 15 Maturing in 2025 5,288 5,630 1 Mo. Libor + Margin Fixed 36 101 Maturing in 2026 2,064 2,178 1 Mo. Libor + Margin Fixed (44 ) (29 ) Maturing in 2027 14,197 6,150 1 Mo. Libor + Margin Fixed 209 210 Total $ 24,053 $ 16,552 $ 185 $ 297 Third party interest rate swap Maturing in 2020 $ 2,504 $ 2,594 Fixed 1 Mo. Libor + Margin $ 16 $ (15 ) Maturing in 2025 5,288 5,630 Fixed 1 Mo. Libor + Margin (36 ) (101 ) Maturing in 2026 2,064 2,178 Fixed 1 Mo. Libor + Margin 44 29 Maturing in 2027 14,197 6,150 Fixed 1 Mo. Libor + Margin (209 ) (210 ) Total $ 24,053 $ 16,552 $ (185 ) $ (297 ) The following table presents the fair values of derivative instruments in the balance sheet. (Amounts in thousands) Assets Liabilities Balance Sheet Location Fair Value Balance Sheet Location Fair Value December 31, 2017 Interest rate derivatives Other assets $ 185 Other liabilities $ 185 December 31, 2016 Interest rate derivatives Other assets $ 297 Other liabilities $ 297

Benefit Plans

Benefit Plans	12 Months Ended
	Dec. 31, 2017
Compensation And Retirement Disclosure [Abstract]
Benefit Plans	NOTE 9 – BENEFIT PLANS The Bank has a contributory defined contribution retirement plan (401(k) plan) which covers substantially all employees. Total expense under the plan was $361,000 for 2017, $349,000 for 2016 and $307,000 for 2015. The Bank matches participants’ voluntary contributions up to 5% of gross pay. Participants were able to make voluntary contributions to the plan up to a maximum of $18,000 with an additional $6,000 catch-up deferral for plan participants over the age of 50. The Bank makes bi-weekly contributions to this plan equal to amounts accrued for plan expense. The Company provides supplemental retirement benefit plans for the benefit of certain officers and non-officer directors. The plan for officers is designed to provide post-retirement benefits to supplement other sources of retirement income such as social security and 401(k) benefits. The benefits will be paid for a period of 15 years after retirement. Director Retirement Agreements provide for a benefit of $10,000 annually on or after the director reaches normal retirement age, which is based on a combination of age and years of service. Director retirement benefits are paid over a period of 10 years following retirement. The Company accrues the cost of these post-retirement benefits during the working careers of the officers and directors. At December 31, 2017, the accumulated liability for these benefits totaled $3.2 million, with $2.7 million accrued for the officers’ plan and $500,000 for the directors’ plan. The following table reconciles the accumulated liability for the benefit obligation of these agreements: (Amounts in thousands) Years Ended December 31, 2017 2016 2015 Beginning balance $ 2,957 $ 2,760 $ 2,549 Benefit expense 387 359 369 Benefit payments (162 ) (162 ) (158 ) Ending balance $ 3,182 $ 2,957 $ 2,760 Supplemental executive retirement agreements are unfunded plans and have no plan assets. The benefit obligation represents the vested net present value of future payments to individuals under the agreements. The benefit expense, as specified in the agreements for the entire year 2018, is expected to be approximately $426,000. The benefits expected to be paid in the next year are approximately $162,000. The Bank has purchased insurance contracts on the lives of the participants in the supplemental retirement benefit plan and has named the Bank as the beneficiary. Similarly, the Company has purchased insurance contracts on the lives of the directors with the Bancorp as beneficiary. While no direct linkage exists between the supplemental retirement benefit plan and the life insurance contracts, it is management’s current intent that the revenue from the insurance contracts be used as a funding source for the plan. The Company accrues for the monthly benefit expense of postretirement cost of insurance for split-dollar life insurance coverage. The following table presents the changes in the accumulated liability. (Amounts in thousands) December 31, 2017 2016 2015 Beginning balance $ 840 $ 856 $ 616 Expense recorded 50 23 132 Other comprehensive (income) loss recorded (14 ) (39 ) 108 Ending balance $ 876 $ 840 $ 856

Federal Income Taxes

Federal Income Taxes	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Federal Income Taxes	NOTE 10 - FEDERAL INCOME TAXES With the passage of the Tax Cuts and Jobs Act (“Tax Act”), tax law for corporations has several material changes effective beginning in 2018. The most significant change is the reduction in the corporate tax rate from 34% to 21%. Because this reduced rate was signed into law in December 2017, generally accepted accounting principles require recognition of the lower rate on the Company’s deferred tax position as of December 31, 2017. As the Company is in a net deferred tax asset position, the reduction of this benefit resulted in a $1.2 million additional charge to Federal Income Tax expense in the Company’s 2017 Consolidated Statements of Income. The composition of income tax expense is as follows: (Amounts in thousands) Years Ended December 31 , 2017 2016 2015 Current $ 1,199 $ 1,256 $ 916 Deferred (28 ) (129 ) 303 Change in corporate tax rate 1,246 — — Total $ 2,417 $ 1,127 $ 1,219 The ability to realize the benefit of deferred tax assets is dependent upon a number of factors, including the generation of future taxable income, the ability to carry back taxes paid in previous years, the ability to offset capital losses with capital gains, the reversal of deferred tax liabilities, and certain tax planning strategies. A valuation allowance of $94,000 had been established to offset in its entirety the tax benefits associated with securities sold at a loss that management was able to offset in 2016. For years subsequent to 2017, the ability to carry back taxes paid in previous years has been eliminated by the Tax Act. The following is a summary of net deferred taxes included in other assets: (Amounts in thousands) December 31, 2017 2016 Gross deferred tax assets: Allowance for loan and other real estate losses $ 961 $ 1,655 Deferred loan origination cost - net 234 303 Impairment loss on securities 29 48 Deferred compensation 668 1,006 AMT credit carryforward 904 904 Unrealized loss on available-for-sale securities 475 1,499 Other items 333 540 Total gross deferred tax assets 3,604 5,955 Gross deferred tax liabilities: Premises and equipment (362 ) (566 ) Other items (325 ) (524 ) Total net deferred tax liabilities (687 ) (1,090 ) Net deferred tax asset $ 2,917 $ 4,865 The Company had a deferred tax asset of $904,000 for credits related to Alternative Minimum Taxes (AMT) as of December 31, 2017 and December 31, 2016. The AMT credits have an unlimited carry-forward period. No valuation allowance had been established for these deferred tax assets in view of the Corporation’s ability to carry forward taxes paid and credits earned in previous years, to future years, coupled with the anticipated future taxable income as evidenced by the Corporation’s earnings potential. The Tax Act eliminates the AMT for corporations beginning in 2018. The Company expects to offset its regular tax liability in 2018, utilizing the AMT credit in its entirety. The following is a reconciliation of the valuation allowance for net deferred tax assets: December 31, 2017 2016 Valuation allowance at beginning of year $ — $ 94,000 Utilization of capital loss carryover — (94,000 ) Valuation allowance at end of year $ — $ — The following is a reconciliation between tax expense using the statutory tax rate of 34% and the income tax provision: (Amounts in thousands) Years Ended December 31 , 2017 2016 2015 Statutory tax expense $ 2,301 $ 2,039 $ 1,903 Tax effect of non-taxable interest income (663 ) (628 ) (600 ) Tax effect of earnings on bank-owned life insurance-net (414 ) (112 ) (115 ) Tax effect of deferred tax valuation reversal — (94 ) — Change in corporate tax rate 1,246 — — Tax effect of low income housing credit (149 ) (142 ) (54 ) Tax effect of non-deductible expenses 96 64 85 Federal income tax expense $ 2,417 $ 1,127 $ 1,219 The related income tax expense on investment securities gains amounted to $3,000 for 2017, $142,000 for 2016 and $22,000 for 2015 and is included in the federal income tax expense. The Company prescribes a recognition threshold and a measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. Benefits from tax positions should be recognized in the financial statements only when it is more-likely-than-not that the tax position will be sustained upon examination by the appropriate taxing authority that would have full knowledge of all relevant information. A tax position that meets the more-likely-than-not recognition threshold is measured at the largest amount of benefit that is greater than fifty percent likely of being realized upon ultimate settlement. Tax positions that previously failed to meet the more-likely-than-not recognition threshold should be recognized in the first subsequent financial reporting period in which that threshold is met. Previously recognized tax positions that no longer meet the more-likely-than-not recognition threshold should be derecognized in the first subsequent financial reporting period in which that threshold is no longer met. The provision also provides guidance on the accounting for and disclosure of unrecognized tax benefits, interest and penalties. There were no significant unrecognized tax benefits at December 31, 2017 and the Company does not expect any significant increase in unrecognized tax benefits in the next twelve months. No interest or penalties were incurred for income taxes which would have been recorded as a component of income tax expense. There is currently no liability for uncertain tax positions and no known unrecognized tax benefits. The Company’s federal and state income tax returns for taxable years through 2013 have been closed for purposes of examination by the Internal Revenue Service and the Ohio Department of Revenue.

Fair Value

Fair Value	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value	NOTE 11 – FAIR VALUE Measurements The Company groups assets and liabilities recorded at fair value into three levels based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement (with level 1 considered highest and level 3 considered lowest). A brief description of each level follows: Level 1: Quoted prices are available in active markets for identical assets or liabilities as of the reported date. Level 2: Pricing inputs are other than quoted prices in active markets, which are either directly or indirectly observable as of the reported date. The nature of these assets and liabilities include items for which quoted prices are available but which trade less frequently, and items that are fair valued using other financial instruments, the parameters of which can be directly observed. Level 3: Assets and liabilities that have little to no pricing observability as of the reported date. These items do not have two-way markets and are measured using management’s best estimate of fair value, where inputs into the determination of fair value require significant management judgment or estimation. The following table presents the assets reported on the consolidated balance sheets at their fair value as of December 31, 2017 and December 31, 2016 by level within the fair value hierarchy. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. (Amounts in thousands) Fair Value Measurements at December 31, 2017 Using Description December 31, 2017 Quoted Prices in Active Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) ASSETS U.S. Government agencies and corporations $ 3,205 $ — $ 3,205 $ — Obligations of states and political subdivisions 72,116 — 72,116 — U.S. Government-sponsored mortgage-backed securities 67,668 — 67,668 — U.S. Government-sponsored collateralized mortgage obligations 6,302 — 6,302 — U.S. Government-guaranteed small business administration pools 9,655 — 9,655 — Trust preferred securities 895 — — 895 Regulatory stock 2,581 2,581 — — Loans held for sale 2,780 2,780 — — Interest rate derivatives 185 — 185 — LIABILITIES Interest rate derivatives $ 185 $ — $ 185 $ — (Amounts in thousands) Fair Value Measurements at December 31, 2016 Using Description December 31, 2016 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) ASSETS U.S. Government agencies and corporations $ 7,988 $ — $ 7,988 $ — Obligations of states and political subdivisions 66,770 — 66,770 — U.S. Government-sponsored mortgage-backed securities 79,767 — 79,767 — U.S. Government-sponsored collateralized mortgage obligations 9,349 — 9,349 — U.S. Government-guaranteed small business administration pools 11,939 — 11,939 — Trust preferred securities 825 — — 825 Regulatory stock 2,581 2,581 — — Loans held for sale 4,554 4,554 — — Interest rate derivatives 297 — 297 — LIABILITIES Interest rate derivatives $ 297 $ — $ 297 $ — The following tables present the changes in the Level 3 fair value category for the years ended December 31, 2017, 2016 and 2015. The Company classifies financial instruments in Level 3 of the fair-value hierarchy when there is reliance on at least one significant unobservable input to the valuation model. In addition to these unobservable inputs, the valuation models for Level 3 financial instruments typically also rely on a number of inputs that are readily observable either directly or indirectly. (Amounts in thousands) December 31, 2017 2016 2015 Trust preferred securities Trust preferred securities Trust preferred securities Beginning balance $ 825 $ 778 $ 779 Net realized/unrealized gains/(losses) included in: Noninterest income — — — Other comprehensive income 72 67 21 Discount accretion (premium amortization) — — — Sales — — — Purchases, issuance, and settlements (2 ) (20 ) (22 ) Ending balance $ 895 $ 825 $ 778 Losses included in net income for the period relating to assets held at period end $ — $ — $ — The Company conducts OTTI analyses on a quarterly basis. The initial indication of other-than-temporary impairment for both debt and equity securities is a decline in the fair value below the amount recorded for an investment. A decline in value that is considered to be other-than-temporary is recorded as a loss within non-interest income in the Consolidated Statements of Income. In determining whether an impairment is other than temporary, the Company considers a number of factors, including, but not limited to, the length of time and extent to which the market value has been less than cost, recent events specific to the issuer, including investment downgrades by rating agencies and economic conditions of its industry, and a determination that the Company does not intend to sell those investments and it is not more-likely-than-not that the Company will be required to sell the investments before recovery of its amortized cost basis less any current period credit loss. Among the factors that are considered in determining the Company’s intent and ability is a review of its capital adequacy, interest rate risk position and liquidity. The Company also considers the issuer’s financial condition, capital strength and near-term prospects. In addition, for debt securities the Company considers the cause of the price decline (general level of interest rates and industry- and issuer-specific factors), current ability to make future payments in a timely manner and the issuer’s ability to service debt, the assessment of a security’s ability to recover any decline in market value, the ability of the issuer to meet contractual obligations and the Company’s intent and ability to retain the security. All of the foregoing require considerable judgment. Trust Preferred Securities Trust preferred securities are accounted for under FASB ASC Topic 325 Investments Other For the currently held bank-issued trust preferred securities, the Company does not intend to sell the securities and it is more-likely-than-not that the Company will not be required to sell the securities before recovery of its amortized cost basis. There is a risk that subsequent evaluations could result in recognition of OTTI charges in the future. The securities had life-to-date impairment losses as presented below. The following table details the breakdown of trust preferred securities for the periods indicated: (Dollar amounts in thousands) December 31, 2017 2016 Total number of trust preferred securities 2 2 Par value $ 1,939 $ 1,970 Number not considered OTTI 1 1 Par value $ 903 $ 940 Number considered OTTI 1 1 Par value $ 1,036 $ 1,030 Life-to-date impairment recognized in earnings $ 140 $ 140 Life-to-date impairment recognized in other comprehensive income 723 795 Total life-to-date impairment $ 863 $ 935 The following table details the one debt security with other-than-temporary impairment, its credit rating at December 31, 2017 and the related loss recognized in earnings: (Dollar amounts in thousands) Moody’s/Fitch Rating Amount of OTTI related to credit loss at January 1, 2017 Additions March 31, 2017 Additions in QTD June 30, 2017 Additions in QTD September 30, 2017 Additions in QTD December 31, 2017 Amount of OTTI related to credit loss at December 31, 2017 Trapeza IX B-1 Caa2/CC $ 140 $ — $ — $ — $ — $ 140 The following table details the one debt security with other-than-temporary impairment, its credit rating at December 31, 2016 and the related losses recognized in earnings: (Dollar amounts in thousands) Moody’s/Fitch Rating Amount of OTTI related to credit loss at January 1, 2016 Additions March 31, 2016 Additions in QTD June 30, 2016 Additions in QTD September 30, 2016 Additions in QTD December 31, 2016 Amount of OTTI related to credit loss at December 31, 2016 Trapeza IX B-1 Caa2/CC $ 140 $ — $ — $ — $ — $ 140 The following table provides additional information related to the Company’s trust preferred securities as of December 31, 2017 used to evaluate other-than-temporary impairments: (Dollar amounts in thousands) Deal Class Amortized Cost Fair Value Unrealized Gain/(Loss) Moody’s/ Fitch Rating Number of Issuers Currently Performing Deferrals and Defaults as a % of Current Collateral Excess Subordination as a % of Current Performing Collateral PreTSL XXIII C-2 $ 758 $ 336 $ (422 ) Ba1/CCC 90 20.9 % 7.12 % Trapeza IX B-1 860 559 (301 ) Caa2/CC 30 14.0 — Total $ 1,618 $ 895 $ (723 ) The following table provides additional information related to the Company’s trust preferred securities as of December 31, 2016 used to evaluate other-than-temporary impairments: (Dollar amounts in thousands) Deal Class Amortized Cost Fair Value Unrealized Gain/(Loss) Moody’s/ Fitch Rating Number of Issuers Currently Performing Deferrals and Defaults as a % of Current Collateral Excess Subordination as a % of Current Performing Collateral PreTSL XXIII C-2 $ 760 $ 310 $ (450 ) B2/CCC 90 22.5 % 5.33 % Trapeza IX B-1 860 515 (345 ) Caa2/CC 32 13.3 — Total $ 1,620 $ 825 $ (795 ) The market for these securities at December 31, 2017 and December 31, 2016 is not active and markets for similar securities are also not active. The inactivity was evidenced first by a significant widening of the bid-ask spread in the brokered markets in which trust preferred securities trade and then by a significant decrease in the volume of trades relative to historical levels. The new issue market is also inactive as no new trust preferred securities have been issued since 2007. There are currently very few market participants who are willing and/or able to transact for these securities. The pooled market value for these securities remains very depressed relative to historical levels. Although there has been marked improvement in the credit spread premium in the corporate bond space, no such improvement has been noted in the market for trust preferred securities. Given conditions in the debt markets today and the absence of observable transactions in the secondary and the new issue markets, the Company determined the following: • The few observable transactions and market quotations that are available are not reliable for purposes of determining fair value at December 31, 2017; • An income valuation approach technique (present value technique) that maximizes the use of relevant observable inputs and minimizes the use of unobservable inputs will be equally or more representative of fair value than the market approach valuation technique used at measurement dates prior to 2008; and • The trust preferred securities will be classified within Level 3 of the fair value hierarchy because the Company determined that significant judgments are required to determine fair value at the measurement date. The Company enlisted the aid of an independent third party to perform the trust preferred security valuations. The approach to determining fair value involved the following process: 1. Estimate the credit quality of the collateral using average probability of default values for each issuer (adjusted for rating levels). 2. Consider the potential for correlation among issuers within the same industry for default probabilities (e.g. banks with other banks). 3. Forecast the cash flows for the underlying collateral and apply to each trust preferred security tranche to determine the resulting distribution among the securities, including prepayment and cures. 4. Discount the expected cash flows to calculate the present value of the security. The PreTSL XXIII cash flows are discounted at 14.74% through its maturity date of December 2036 and would have to experience an additional $209 million of nonperforming collateral (of $861 million performing) in order to incur any impairment. The aggregate cash flows for the C-2 tranche are estimated to be $42.6 million on a current principal of $26.1 million. The Trapeza IX cash flows are discounted at 9.10% through its maturity of January 2038 and would experience additional impairment upon further occurrence of nonperforming collateral of $6.8 million (of $200 million performing). The aggregate cash flows for the B-1 tranche are estimated to be $41.6 million on a current principal of $23.8 million. The following table presents the assets measured on a nonrecurring basis on the Consolidated Balance Sheets at their fair value as of December 31, 2017 and December 31, 2016, by level within the fair value hierarchy. Impaired loans that are collateral dependent are written down to fair value through the establishment of specific reserves. Techniques used to value the collateral that secure the impaired loans include: quoted market prices for identical assets classified as Level 1 inputs; observable inputs, employed by certified appraisers, for similar assets classified as Level 2 inputs. In cases where valuation techniques include inputs that are unobservable and are based on estimates and assumptions developed by management based on the best information available under each circumstance, the asset valuation is classified as Level 3 inputs. Other real estate owned is carried at the lower of cost or fair value less estimated costs to sell. (Amounts in thousands) December 31, 2017 Level 1 Level 2 Level 3 Total Assets measured on a nonrecurring basis: Impaired loans $ — $ — $ 9,620 $ 9,620 (Amounts in thousands) December 31, 2016 Level 1 Level 2 Level 3 Total Assets measured on a nonrecurring basis: Impaired loans $ — $ — $ 6,788 $ 6,788 Financial Instruments The Company discloses fair value information about financial instruments, whether or not recognized in the Consolidated Balance Sheets, for which it is practicable to estimate the value. In cases where quoted market prices are not available, fair values are based on estimates using present value or other estimation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Such techniques and assumptions, as they apply to individual categories of the financial instruments, are as follows: Cash and cash equivalents – The carrying amounts for cash and cash equivalents are a reasonable estimate of those assets’ fair value. Investment securities – Fair values of securities are based on quoted market prices, where available. If quoted market prices are not available, fair values are based on quoted market prices of comparable securities. Prices on trust preferred securities were calculated using a discounted cash-flow technique. Cash flows were estimated based on credit and prepayment assumptions. The present value of the projected cash flows was calculated using a discount rate equal to the current yield used to accrete the beneficial interest. Loans held for sale – Loans held for sale consist of residential mortgage loans originated for sale. Loans held for sale are recorded at fair value based on what the secondary markets have offered on best efforts commitments. Loans, net of allowance for loan losses – Market quotations are generally not available for loan portfolios. The fair value is estimated by discounting future cash flows using current market inputs at which loans with similar terms and qualities would be made to borrowers of similar credit quality. Bank-owned life insurance – The fair value is based upon the cash surrender value of the underlying policies net of any split dollar obligation and matches the book value. Accrued interest receivable – The carrying amount is a reasonable estimate of these assets’ fair value. Interest rate derivatives – The fair value is based on settlement values adjusted for credit risks associated with the counter parties and the Company and observable market interest rate curves. Demand, savings and money market deposits – Demand, savings, and money market deposit accounts are valued at the amount payable on demand. Time deposits – The fair value of certificates of deposit is based on the discounted value of contractual cash flows. The discount rates are estimated using market rates currently offered for similar instruments with similar remaining maturities. Short term borrowings – Short term borrowings generally have an original term to maturity of one year or less. Consequently, their carrying value is a reasonable estimate of fair value. FHLB advances - short term – Short term borrowings generally have an original term to maturity of one year or less. Advances of one month or less are considered to be at fair value. The fair value of notes with one to twelve month terms is based on the discounted value of contractual cash flows. The discount rates are estimated using market rates currently offered for similar instruments with similar remaining maturities. FHLB advances - long term – The fair value for fixed rate advances is estimated by discounting the future cash flows using rates at which advances would be made to borrowers with similar credit ratings and for the same remaining maturities. The fair value for the fixed rate advances that are convertible to quarterly LIBOR floating rate advances on or after certain specified dates at the option of the FHLB and the FHLB fixed rate advances that are putable on or after certain specified dates at the option of the FHLB are priced using the FHLB of Cincinnati’s model. Subordinated debt – The floating issuances curves to maturity are averaged to obtain an index. The spread between BBB-rated bank debt and 25-year swap rates is determined to calculate the spread on outstanding trust preferred securities. The discount margin is then added to the index to arrive at a discount rate, which determines the present value of projected cash flows. Accrued interest payable – The carrying amount is a reasonable estimate of these liabilities’ fair value. The fair value of unrecorded commitments at December 31, 2017 and December 31, 2016 is not material. In addition, other assets and liabilities of the Company that are not defined as financial instruments are not included in the disclosures, such as property and equipment. Also, non-financial instruments typically not recognized in financial statements nevertheless may have value but are not included in the above disclosures. These include, among other items, the estimated earning power of core deposit accounts, the trained work force, customer goodwill and similar items. Accordingly, the aggregate fair value amounts presented do not represent the underlying value of the Company. The carrying amounts and estimated fair values of the Company’s financial instruments are as follows: (Amounts in thousands) December 31, 2017 Carrying Amount Level 1 Level 2 Level 3 Fair Value ASSETS: Cash and cash equivalents $ 19,125 $ 19,125 $ — $ — $ 19,125 Investment securities available-for-sale 162,422 2,581 158,946 895 162,422 Loans held for sale 2,780 2,780 — — 2,780 Loans, net of allowance for loan losses 482,912 — — 486,230 486,230 Bank-owned life insurance 17,650 17,650 — — 17,650 Accrued interest receivable 2,193 2,193 — — 2,193 Interest rate derivatives 185 — 185 — 185 LIABILITIES: Demand, savings and money market deposits $ 458,562 $ 458,562 $ — $ — $ 458,562 Time deposits 127,289 — — 128,624 128,624 Short-term borrowings 2,678 2,678 — — 2,678 Federal Home Loan Bank advances - short term 32,000 — — 31,982 31,982 Federal Home Loan Bank advances - long term 14,000 — — 13,880 13,880 Subordinated debt 5,155 — — 4,785 4,785 Accrued interest payable 325 325 — — 325 Interest rate derivatives 185 — 185 — 185 (Amounts in thousands) December 31, 2016 Carrying Amount Level 1 Level 2 Level 3 Fair Value ASSETS: Cash and cash equivalents $ 15,351 $ 15,351 $ — $ — $ 15,351 Investment securities available-for-sale 179,219 2,581 175,813 825 179,219 Loans held for sale 4,554 4,554 — — 4,554 Loans, net of allowance for loan losses 414,900 — — 418,532 418,532 Bank-owned life insurance 17,376 17,376 — — 17,376 Accrued interest receivable 2,041 2,041 — — 2,041 Interest rate derivatives 297 — 297 — 297 LIABILITIES: Demand, savings and money market deposits $ 408,983 $ 408,983 $ — $ — $ 408,983 Time deposits 130,867 — — 133,108 133,108 Short-term borrowings 2,702 2,702 — — 2,702 Federal Home Loan Bank advances - short term 23,000 17,000 — 5,998 22,998 Federal Home Loan Bank advances - long term 17,500 — — 17,580 17,580 Subordinated debt 5,155 — — 4,363 4,363 Accrued interest payable 288 288 — — 288 Interest rate derivatives 297 — 297 — 297 The following table presents quantitative information about the Level 3 significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis at December 31, 2017. (Amounts Fair value at December 31, 2017 Valuation Technique Significant Unobservable Input Description of Inputs Trust preferred securities $ 895 Discounted Cash Flow Projected Prepayments 1) Trust preferred securities issued by banks subject to Dodd-Frank's phase-out of trust preferred securities from Tier 1 Capital. All fixed rate within one year; variable rate at increasing intervals depending on spread. 2) Trust preferred securities issued by healthy, well capitalized banks that have fixed rate coupons greater than 8%. 3) 1% annually for all other fixed rate issues and all variable rate issues. 4) Zero for collateral issued by REITs and 2% for insurance companies. Projected Defaults 1) All deferring issuers that do not meet the criteria for curing, as described below, are projected to default immediately. 2) Banks with high, near team default risk are identified using a CAMELS model, and projected to default immediately. Healthy banks are projected to default at a rate of 2% annually for 2 years, and 0.36% annually thereafter. 3) Insurance and REIT defaults are projected according to the historical default rates exhibited by companies with the same credit ratings. Historical default rates are doubled in each of the first two years of the projection to account for current economic conditions. Unrated issuers are assumed to have CCC- ratings. Projected Cures 1) Deferring issuers that have definitive agreements to either be acquired or recapitalized. Projected Recoveries 1) Zero for insurance companies, REITs and insolvent banks, and 10% for projected bank deferrals lagged 2 years. Discount Rates 1) Ranging from ~9.10% to ~14.74%, depending on each bond's seniority and remaining subordination after projected losses. Impaired loans 4,891 Cash Flow Discount Rates Range 4.50% to 5.38% Weighted average 4.88 % The following table presents quantitative information about the Level 3 significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis at December 31, 2016. (Amounts Fair value at December 31, 2016 Valuation Technique Significant Unobservable Input Description of Inputs Trust preferred securities $ 825 Discounted Cash Flow Projected Prepayments 1) Trust preferred securities issued by banks subject to Dodd-Frank's phase-out of trust preferred securities from Tier 1 Capital. All fixed rate within one year; variable rate at increasing intervals depending on spread. 2) Trust preferred securities issued by healthy, well capitalized banks that have fixed rate coupons greater than 8%. 3) 1% annually for all other fixed rate issues and all variable rate issues. 4) Zero for collateral issued by REITs and 2% for insurance companies. Projected Defaults 1) All deferring issuers that do not meet the criteria for curing, as described below, are projected to default immediately. 2) Banks with high, near team default risk are identified using a CAMELS model, and projected to default immediately. Healthy banks are projected to default at a rate of 2% annually for 2 years, and 0.36% annually thereafter. 3) Insurance and REIT defaults are projected according to the historical default rates exhibited by companies with the same credit ratings. Historical default rates are doubled in each of the first two years of the projection to account for current economic conditions. Unrated issuers are assumed to have CCC- ratings. Projected Cures 1) Deferring issuers that have definitive agreements to either be acquired or recapitalized. Projected Recoveries 1) Zero for insurance companies, REITs and insolvent banks, and 10% for projected bank deferrals lagged 2 years. Discount Rates 1) Ranging from ~9.69% to ~15.11%, depending on each bond's seniority and remaining subordination after projected losses. Impaired loans 1,001 Appraisal of Collateral (1) Appraisal Adjustments (2) (20)% Weighted average (20)% Liquidation Expenses (2) Range (8)% to (12)% Weighted average (10)% (1) Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various Level 3 inputs which are not identifiable. (2) Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. The range and weighted average of liquidation expenses are presented as a percent of the appraisal. The adjustment of appraised value is measured as the effect on fair value as a percentage of unpaid principal.

Accumulated Other Comprehensive

Accumulated Other Comprehensive (Loss) Income	12 Months Ended
	Dec. 31, 2017
Equity [Abstract]
Accumulated Other Comprehensive (Loss) Income	NOTE 12 - ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME The following table presents the changes in accumulated other comprehensive loss or income by component net of tax for the years ended December 31, 2017 and 2016. (Amounts in thousands) Unrealized gains (losses) on available-for-sale securities (a) Change in pension and postretirement obligations (a) Balance as of December 31, 2015 $ (147 ) $ (91 ) Other comprehensive (loss) income before reclassification (2,454 ) 39 Amount reclassified from accumulated other comprehensive loss (308 ) — Total other comprehensive loss (2,762 ) 39 Balance as of December 31, 2016 $ (2,909 ) $ (52 ) Other comprehensive income before reclassification 1,420 14 Reclassification of certain income tax effects from accumulated other comprehensive income (294 ) — Amount reclassified from accumulated other comprehensive loss (4 ) — Total other comprehensive income 1,122 14 Balance as of December 31, 2017 $ (1,787 ) $ (38 ) (a) All amounts are net of tax. Amounts in parentheses indicate debits. The following table presents significant amounts reclassified out of each component of accumulated other comprehensive loss or income for the years ended December 31, 2017 and 2016. (Amounts in thousands) December 31, 2017 Amount accumulated other comprehensive Affected statement where net income is presented Details about other comprehensive income or loss: Unrealized gains on available-for-sale securities $ 7 Investment securities available-for-sale gains, net (3 ) Federal income tax expense $ 4 (Amounts in thousands) December 31, 2016 Amount accumulated other comprehensive Affected line item in the statement where net income is presented Details about other comprehensive income or loss: Unrealized gains on available-for-sale securities $ 466 Investment securities available-for-sale gains, net (158 ) Federal income tax expense $ 308 (a) Amounts in parentheses indicate debits to net income.

Regulatory Matters

Regulatory Matters	12 Months Ended
	Dec. 31, 2017
Regulatory Capital Requirements [Abstract]
Regulatory Matters	NOTE 13 - REGULATORY MATTERS The Company and the Bank are subject to regulatory capital requirements administered by federal banking agencies. Capital adequacy guidelines and prompt corrective action regulations involve quantitative measures of assets, liabilities, and certain off-balance-sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators about components, risk weightings, and other factors, and the regulators can lower classifications in certain cases. Failure to meet various capital requirements can initiate regulatory action that could have a direct material effect on the financial statements. The prompt corrective action regulations provide five categories, including well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized, and critically undercapitalized, although these terms are not used to represent overall financial condition. If a bank is only adequately capitalized, regulatory approval is required to, among other things, accept, renew or roll-over brokered deposits. If a bank is undercapitalized, capital distributions and growth and expansion are limited, and plans for capital restoration are required. In July 2013, the Board of Governors of the Federal Reserve Board and the FDIC approved the final rules implementing the Basel Committee on Banking Supervision's capital guidelines for U.S. banks and their holding companies (commonly known as Basel III). Under the final rules, which began for the Company and the Bank on January 1, 2015 and are subject to a phase-in period through January 1, 2019, minimum requirements will increase for both the quantity and quality of capital held by the Company and the Bank. The rules include a new common equity Tier 1 capital to risk-weighted assets ratio (CET1 ratio) of 4.5% and a capital conservation buffer of 2.5% of risk-weighted assets, which when fully phased-in, effectively results in a minimum CET1 ratio of 7.0%. Basel III raises the minimum ratio of Tier 1 capital to risk-weighted assets from 4.0% to 6.0% (which, with the capital conservation buffer, effectively results in a minimum Tier 1 capital ratio of 8.5% when fully phased-in), effectively results in a minimum total capital to risk-weighted assets ratio of 10.5% (with the capital conservation buffer fully phased-in), and requires a minimum leverage ratio of 4.0%. Basel III also makes changes to risk weights for certain assets and off-balance-sheet exposures. Management expects that the capital ratios for the Company and the Bank under Basel III will continue to exceed the well capitalized minimum capital requirements, as they currently exceed the fully phased in 2019 requirements. In addition to the capital requirements for bank holding companies generally, financial holding companies are also required to meet “well-capitalized” requirements of the Federal Reserve Board. A bank holding company or financial holding company that is covered by the Federal Reserve’s Small Bank Holding Company Policy is not required to comply with the consolidated capital requirements, although its bank subsidiaries still must comply with the applicable capital requirements. As a bank holding company with assets of less than $1 billion and meeting certain other requirements, the Company is covered by the Small Bank Holding Company Policy. At December 31, 2017 and December 31, 2016, actual capital levels and minimum required levels for the Company, if it were not covered by the Small Bank Holding Company Policy, were: (Amounts in thousands) Actual Minimum required for capital adequacy purposes December 31, 2017 Amount Ratio Amount Ratio CET1 capital (to risk-weighted assets) $ 63,455 12.37 % $ 23,082 4.5 % Tier 1 capital (to risk-weighted assets) 68,455 13.35 % 30,776 6.0 % Total capital (to risk-weighted assets) 73,116 14.26 % 41,033 8.0 % Tier 1 capital (to average assets) 68,455 10.77 % 25,416 4.0 % (Amounts in thousands) Actual Minimum required for capital adequacy purposes December 31, 2016 Amount Ratio Amount Ratio CET1 capital (to risk-weighted assets) $ 60,631 12.97 % $ 21,033 4.5 % Tier 1 capital (to risk-weighted assets) 65,631 14.04 % 28,044 6.0 % Total capital (to risk-weighted assets) 70,583 15.10 % 37,392 8.0 % Tier 1 capital (to average assets) 65,631 10.46 % 25,086 4.0 % Approximately $5.0 million of trust preferred securities outstanding at December 31, 2017 and December 31, 2016, respectively, qualified as Tier 1 capital. Refer to Note 7, “Subordinated Debt.” The Bank met all capital requirements to be categorized as "well capitalized" at December 31, 2017 and December 31, 2016.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2017
Related Party Transactions [Abstract]
Related Party Transactions	NOTE 14 - RELATED PARTY TRANSACTIONS Certain directors, executive officers and companies with whom they are affiliated were loan customers during 2017. The following is an analysis of such loans: (Amounts in thousands) Total related-party loans at December 31, 2016 $ 4,283 New related-party loans 3,038 Repayments or other (3,091 ) Total related-party loans at December 31, 2017 $ 4,230 Deposit balances of executive officers, directors, and their affiliates at December 31, 2017 and 2016 were $2.8 million and $2.9 million, respectively. The banking relationships were made in the ordinary course of business with the Bank.

Condensed Financial Information

Condensed Financial Information - Parent Company	12 Months Ended
	Dec. 31, 2017
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]
Condensed Financial Information - Parent Company	NOTE 15 - CONDENSED FINANCIAL INFORMATION – PARENT COMPANY Below is condensed financial information of Cortland Bancorp (parent company only). In this information, the Parent’s investment in subsidiaries is stated at cost, including equity in the undistributed earnings of the subsidiaries, adjusted for any unrealized gains or losses on available-for-sale securities. BALANCE SHEETS (Amounts in thousands) December 31, 2017 2016 ASSETS Cash $ 261 $ 320 Investment in bank subsidiary 58,028 53,759 Subordinated note from subsidiary bank 6,000 6,000 Other assets 3,489 3,700 Total assets $ 67,778 $ 63,779 LIABILITIES Other liabilities $ 993 $ 954 Subordinated debt (Note 7) 5,155 5,155 Total liabilities 6,148 6,109 SHAREHOLDERS’ EQUITY Common stock 23,641 23,641 Additional paid-in capital 20,928 20,878 Retained earnings 24,403 21,485 Accumulated other comprehensive loss (1,825 ) (2,961 ) Treasury stock (5,517 ) (5,373 ) Total shareholders’ equity 61,630 57,670 Total liabilities & shareholders’ equity $ 67,778 $ 63,779 STATEMENTS OF COMPREHENSIVE INCOME (Amounts in thousands) Years ended December 31 , 2017 2016 2015 Dividends from bank subsidiary $ 1,900 $ 1,400 $ 3,310 Interest and dividend income 153 121 97 Other income 58 60 63 Interest on subordinated debt (138 ) (112 ) (91 ) Other expenses (568 ) (497 ) (513 ) Income before income tax and equity in undistributed earnings of subsidiaries 1,405 972 2,866 Income tax benefit 106 265 133 Equity in undistributed earnings of subsidiaries 2,839 3,634 1,379 Net income $ 4,350 $ 4,871 $ 4,378 Comprehensive income $ 5,780 $ 2,148 $ 3,764 STATEMENTS OF CASH FLOWS (Amounts in thousands) Years ended December 31 , 2017 2016 2015 Cash flow from operating activities Net income $ 4,350 $ 4,871 $ 4,378 Adjustments to reconcile net income to net cash flow from operating activities: Equity in undistributed net income of subsidiaries (2,839 ) (3,634 ) (1,379 ) Deferred tax benefit 62 (15 ) (6 ) Equity compensation 143 75 — Change in other assets and liabilities 188 138 (35 ) Net cash flow from operating activities 1,904 1,435 2,958 Cash deficit from financing activities Dividends paid (1,726 ) (1,237 ) (1,082 ) Treasury shares purchased (237 ) — (1,850 ) Net cash deficit from financing activities (1,963 ) (1,237 ) (2,932 ) Net change in cash (59 ) 198 26 Cash Beginning of year 320 122 96 End of year $ 261 $ 320 $ 122

Dividend Restrictions

Dividend Restrictions	12 Months Ended
	Dec. 31, 2017
Equity [Abstract]
Dividend Restrictions	NOTE 16 - DIVIDEND RESTRICTIONS The Bank is subject to a dividend restriction that generally limits the amount of dividends that can be paid by an Ohio state-chartered bank. Under the Ohio Banking Code, cash dividends may not exceed net profits as defined for that year combined with retained net profits for the two preceding years less any required transfers to surplus. Under this formula, the amount available for payment of dividends in 2018 is $6.7 million plus 2018 profits retained up to the date of the dividend declaration.

Litigation

Litigation	12 Months Ended
	Dec. 31, 2017
Commitments And Contingencies Disclosure [Abstract]
Litigation	NOTE 17 – LITIGATION The Bank is involved in legal actions arising in the ordinary course of business. In the opinion of management, the outcomes from these other matters, either individually or in the aggregate, are not expected to have any material effect on the Company.

Stock Repurchase Program

Stock Repurchase Program	12 Months Ended
	Dec. 31, 2017
Stock Repurchase Program [Abstract]
Stock Repurchase Program	NOTE 18 – STOCK REPURCHASE PROGRAM On January 26, 2016, the Company’s Board of Directors approved a program which allowed the Company to repurchase up to 100,000 shares, or approximately 2.3% of the 4,404,783 shares outstanding at January 26, 2016, of the Company’s outstanding common stock. This program terminated on December 31, 2016. The Company did not purchase any shares under this program. On January 24, 2017, the Company’s Board of Directors approved a new program which allowed the Company to repurchase up to 100,000 shares, or approximately 2.3% of the 4,420,055 shares outstanding at January 24, 2017, of the Company’s outstanding common stock. This program terminated on December 31, 2017. The Company purchased 12,863 shares under this program. On January 23, 2018, the Company’s Board of Directors approved a new program which allowed the Company to repurchase up to 100,000 shares, or approximately 2.3% of the 4,420,136 shares outstanding at January 23, 2018, of the Company’s outstanding common stock. This program will terminate on December 31, 2018 or upon purchase of 100,000 shares if earlier or at any time without prior notice. Repurchased shares are designated as treasury shares, available for general corporate purposes, including possible use in connection with the Company’s dividend reinvestment program, employee benefit plans, acquisitions or other distributions. Based on the value of the Company’s stock on December 31, 2017, the remaining authorization to repurchase the stock for the program is approximately $2.1 million.

Equity Compensation

Equity Compensation	12 Months Ended
	Dec. 31, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Equity Compensation	NOTE 19 – EQUITY COMPENSATION During 2015, the Company, created the 2015 Omnibus Equity Plan and The Director Equity Plan. The Omnibus Equity Plan permits the award of up to 340,000 shares to the Company’s employees to promote the long-term financial success of the Company, increasing shareholder value by providing employees the opportunity to acquire an ownership interest in the Company and enabling the Company and its related entities to attract and retain the services of those upon whom the successful conduct of business depends. There were 12,976 restricted Board approved shares granted under the plan in March 2017 and 13,683 restricted Board approved shares granted under the plan in April 2016. The Company is expensing the grant date fair value of all share-based compensation over the requisite vesting periods on a prorated straight-line basis. In 2017 and 2016, compensation expense of $123,000 and $48,000, respectively, was recorded in the Consolidated Statements of Income. As of December 31, 2017, there was $253,000 of total unrecognized compensation expense related to the non-vested shares granted under the Plan. Shares awarded under this plan vest in equal thirds on the first three anniversaries of the award date if the employee remains employed with Cortland Bancorp. The remaining cost is expected to be recognized over 27 months, which is the remainder of the three-year tiered vesting period. Granted shares are awarded upon meeting achievement of performance objectives derived from one or more of the performance criteria. The main metrics used for the periods presented were three-year earnings per share growth and three-year total shareholder return ranked versus a peer group. The Director Equity Plan permits the award of up to 113,000 shares to nonemployee directors to promote the long-term financial success of the Company, increasing shareholder value by enabling the Company and its related entities to attract and retain the services of those directors upon whom the successful conduct of business depends. There were 1,656 Board approved shares granted under the plan in March 2017 with immediate vesting, and 1,789 Board approved shares granted under the plan in April 2016 with immediate vesting. In 2017, expense of $30,000 was recorded in the Consolidated Statements of Income. The following is the activity under the two plans during the period ended December 31, 2017: Restricted Stock Units Units Price at Grant Date Nonvested at January 1, 2017 13,683 $ 15.25 Granted 12,976 18.25 Vested (4,556 ) 15.25 Forfeited (1,289 ) 16.93 Nonvested at December 31, 2017 20,814 $ 17.02

Extinguishment of Debt

Extinguishment of Debt	12 Months Ended
	Dec. 31, 2017
Extinguishment Of Debt Disclosures [Abstract]
Extinguishment of Debt	NOTE 20 – EXTINGUISHMENT OF DEBT In January of 2016, the Company paid off two FHLB convertible fixed rate advances totaling $4.5 million with an average rate of 4.01% due in 2017. The Company incurred prepayment penalties of $242,000, or $160,000 after tax. The Earnings per Share effect of ($.04) was offset by gains generated on investment securities sales during the same month. The Company used a combination of alternative wholesale borrowings at a rate of 1.44% and current liquidity to fund the early payoff, for an estimated annual interest expense savings of $130,000.

Summary of Significant Accoun29

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation
Industry Segment Information	Industry Segment Information
Use of Estimates	Use of Estimates
Cash Flow	Cash Flow
Investment Securities	Investment Securities Available-for-sale securities, other than regulatory stock, are carried at fair value with unrealized gains and losses recorded as a separate component of shareholders’ equity, net of tax. Realized gains or losses on dispositions are based on net proceeds and the adjusted carrying amount of securities sold, using the specific identification method. Interest income includes amortization of purchase premium or discount and is amortized on the level-yield method without anticipating payments, except for U.S. Government mortgage-backed and related securities where twelve months of historical prepayments are taken into consideration. The regulatory stock is carried at cost (its redeemable value) and the Company is required to hold such investments as a condition of membership in order to transact business with the Federal Home Loan Bank (FHLB) of Cincinnati and the Federal Reserve Bank (FRB). The stock is bought from and sold based upon its par value. The stock cannot be traded or sold in any market and as such is classified as restricted stock, carried at cost (its redeemable value) and evaluated by management. The stock’s value is determined by the ultimate recoverability of the par value rather than by recognizing temporary declines. The determination of whether the par value will ultimately be recovered is influenced by criteria such as the following: (a) the significance of the decline in net assets of the FHLB and FRB as compared to the capital stock amount and the length of time this situation has persisted, (b) commitments by the FHLB and FRB to make payments required by law or regulation and the level of such payments in relation to the operating performance, (c) the impact of legislative and regulatory changes on the customer base of the FHLB and FRB and (d) the liquidity position of the FHLB and FRB. The Company does not consider these investments to be other-than-temporarily impaired at December 31, 2017.
Other-than-Temporary Investment Security Impairment	Other-than-Temporary Investment Security Impairment
Loans	Loans
Loans Held for Sale	Loans Held for Sale
Allowance for Loan Losses (ALLL) and Allowance for Losses on Lending Related Commitments	Allowance for Loan Losses (ALLL) and Allowance for Losses on Lending Related Commitments Estimating the risk of loss and the amount of loss on any loan is necessarily subjective. Accordingly, the allowance is maintained by management at a level considered adequate to cover possible losses that are currently anticipated. Estimates of credit losses should reflect consideration of all significant factors that affect collectability of the portfolio. While historical loss experience provides a reasonable starting point, historical losses, or even recent trends in losses are not, by themselves, a sufficient basis to determine the appropriate level for the ALLL. Management will also consider any factors that are likely to cause estimated credit losses associated with the Bank’s current portfolio to differ from historical loss experience. Factors include, but are not limited to, changes in lending policies and procedures, including underwriting standards and collection, charge-offs, and recovery practices; changes in economic trends; changes in the nature and volume of the portfolio; changes in the experience and ability of lending management and the depth of staff; changes in the trend, volume and severity of past-due and classified loans, and trends in the volume of non-accrual loans; the existence and effect of any concentrations of credit and changes in the level of such concentrations; levels and trends in classification; declining trends in performance; structure and lack of performance measures and migration between risk classifications. Key risk factors and assumptions are updated to reflect actual experience and changing circumstances. While management may periodically allocate portions of the ALLL for specific problem loans, the entire ALLL is available for any charge-offs that occur. Certain collateral dependent loans are evaluated individually for impairment, based on management’s best estimate of discounted cash repayments and the anticipated proceeds from liquidating collateral. The actual timing and amount of repayments and the ultimate realizable value of the collateral may differ from management’s estimates. The expected loss for certain other commercial credits utilizes internal risk ratings. These loss estimates are sensitive to changes in the customer’s risk profile, the realizable value of collateral, other risk factors and the related loss experience of other credits of similar risk. Consumer credits generally employ statistical loss factors, adjusted for other risk indicators, applied to pools of similar loans stratified by asset type. These loss estimates are sensitive to changes in delinquency status and shifts in the aggregate risk profile. The Company maintains an allowance for losses on unfunded commercial lending commitments to provide for the risk of loss inherent in these arrangements. The allowance is computed using a methodology similar to that used to determine the allowance for loan losses. This allowance is reported as a liability on the Consolidated Balance Sheets within other liabilities, while the corresponding provision for these losses is recorded as a component of other operating expense.
Loan Charge-off Policies	Loan Charge-off Policies
Troubled Debt Restructurings (TDR)	Troubled Debt Restructurings (TDR)
Premises and Equipment	Premises and Equipment
Other Real Estate	Other Real Estate
Cash Surrender Value of Life Insurance	Cash Surrender Value of Life Insurance
Endorsement Split-Dollar Life Insurance Arrangement	Endorsement Split-Dollar Life Insurance Arrangement
Derivative Instruments	Derivative Instruments
Advertising and Marketing	Advertising and Marketing
Income Taxes	Income Taxes
Other Comprehensive (Loss) Income	Other Comprehensive (Loss) Income
Per Share Amounts	Per Share Amounts The following table sets forth the computation of basic earnings per common share: Years ended December 31, 2017 2016 2015 Net income (amounts in thousands) $ 4,350 $ 4,871 $ 4,378 Weighted average common shares outstanding 4,407,254 4,406,005 4,497,825 Net effect of dilutive common share equivalents 4,220 1,264 — Adjusted average shares outstanding - dilutive 4,411,474 4,407,269 4,497,825 Basic earnings per share $ 0.99 $ 1.11 $ 0.97 Dilutive earnings per share $ 0.99 $ 1.11 $ 0.97
Off-Balance Sheet Financial Instruments	Off-Balance Sheet Financial Instruments
Reclassifications	Reclassifications
Authoritative Accounting Guidance	Authoritative Accounting Guidance In May 2014, the Financial Accounting Standards Board (FASB) issued ASU 2014-09, Revenue from Contracts with Customers reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, this Update specifies the accounting for certain costs to obtain or fulfill a contract with a customer and expands disclosure requirements for revenue recognition. This Update is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. The Company is currently evaluating the impact the adoption of the standard will have on the Company’s financial position or results of operations. In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers (Topic 606). The amendments in this Update defer the effective date of ASU 2014-09 for all entities by one year. Public business entities, certain not-for-profit entities, and certain employee benefit plans should apply the guidance in ASU 2014-09 to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. All other entities should apply the guidance in ASU 2014-09 to annual reporting periods beginning after December 15, 2018, and interim reporting periods within annual reporting periods beginning after December 15, 2019. This Update is not expected to have a significant impact on the Company’s financial statements. In January 2016, the FASB issued ASU 2016-01, Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments We expect to recognize a one-time cumulative effect adjustment to the allowance for loan losses as of the beginning of the first reporting period in which the new standard is effective, but cannot yet determine the magnitude of any such one-time adjustment or the overall impact of the new guidance on the consolidated financial statements. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805), Clarifying the Definition of a Business In February 2017, the FASB issued ASU 2017-05, Other Income—Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20) This Update is not expected to have a significant impact on the Company’s financial statements. In March 2017, the FASB issued ASU 2017-08, Receivables – Nonrefundable Fees and Other Costs (Subtopic 310-20). The amendments in this Update shorten the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. For public business entities, the amendments in this Update are effective for fiscal years, and interim periods within those fiscal years, beg For all other entities, the amendments are effective for fiscal years beginning after December 15, 2019, and interim periods within fiscal years beginning after December 15, 2020. 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 that interim period. An entity should apply the amendments in this Update on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. Additionally, in the period of adoption, an entity should provide disclosures about a change in accounting principle. This Update is not expected to have a significant impact on the Company’s financial statements. In May 2017, the FASB issued ASU 2017-09, Compensation – Stock Compensation (Topic 718) In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging (Topic 850) should apply a cumulative-effect adjustment related to eliminating the separate measurement of ineffectiveness to accumulated other comprehensive income with a corresponding adjustment to the opening balance of retained earnings as of the beginning of the fiscal year that an entity adopts the amendments in this Update. The amended presentation and disclosure guidance is required only prospectively. This Update is not expected to have a significant impact on the Company’s financial statements. In January 2018, the FASB issued ASU 2018-01, Leases (Topic 842) This Update is not expected to have a significant impact on the Company’s financial statements. In February 2018, the FASB issued ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220) An Act to Provide for Reconciliation Pursuant to Titles II and V of the Concurrent Resolution on the Budget for Fiscal Year 2018 (Tax Cuts and Jobs Act)

Summary of Significant Accoun30

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Computation of Basic Earnings Per Common Share	The following table sets forth the computation of basic earnings per common share: Years ended December 31, 2017 2016 2015 Net income (amounts in thousands) $ 4,350 $ 4,871 $ 4,378 Weighted average common shares outstanding 4,407,254 4,406,005 4,497,825 Net effect of dilutive common share equivalents 4,220 1,264 — Adjusted average shares outstanding - dilutive 4,411,474 4,407,269 4,497,825 Basic earnings per share $ 0.99 $ 1.11 $ 0.97 Dilutive earnings per share $ 0.99 $ 1.11 $ 0.97

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2017
Investments Debt And Equity Securities [Abstract]
Summary of Investment Securities Available-for-Sale	The following is a summary of investment securities available-for-sale: (Amounts in thousands) December 31, 2017 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. Government agencies and corporations $ 3,344 $ 1 $ 140 $ 3,205 Obligations of states and political subdivisions 71,700 740 324 72,116 U.S. Government-sponsored mortgage-backed securities 69,066 6 1,404 67,668 U.S. Government-sponsored collateralized mortgage obligations 6,463 — 161 6,302 U.S. Government-guaranteed small business administration pools 9,911 — 256 9,655 Trust preferred securities 1,618 — 723 895 Total debt securities 162,102 747 3,008 159,841 Federal Home Loan Bank (FHLB) stock 2,355 — — 2,355 Federal Reserve Bank (FRB) stock 226 — — 226 Total regulatory stock 2,581 — — 2,581 Total investment securities available-for-sale $ 164,683 $ 747 $ 3,008 $ 162,422 (Amounts in thousands) December 31, 2016 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. Government agencies and corporations $ 8,165 $ 3 $ 180 $ 7,988 Obligations of states and political subdivisions 68,219 582 2,031 66,770 U.S. Government-sponsored mortgage-backed securities 81,281 32 1,546 79,767 U.S. Government-sponsored collateralized mortgage obligations 9,504 — 155 9,349 U.S. Government-guaranteed small business administration pools 12,255 1 317 11,939 Trust preferred securities 1,620 — 795 825 Total debt securities 181,044 618 5,024 176,638 Federal Home Loan Bank (FHLB) stock 2,355 — — 2,355 Federal Reserve Bank (FRB) stock 226 — — 226 Total regulatory stock 2,581 — — 2,581 Total investment securities available-for-sale $ 183,625 $ 618 $ 5,024 $ 179,219
Summary of Realized and Unrealized Gains and Losses on Trading Securities	(Amounts in thousands) 2016 2015 Unrealized gains — $ 7 Unrealized losses — (3 ) Net unrealized gains — 4 Net realized losses (47 ) (15 ) Trading securities losses, net $ (47 ) $ (11 )
Amortized Cost and Fair Value of Debt Securities by Contractual Maturity	The amortized cost and fair value of debt securities at December 31, 2017, by contractual maturity, are shown below. Actual maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. (Amounts in thousands) Amortized Cost Fair Value Due in one year or less $ 10 $ 10 Due after one year through five years 860 894 Due after five years through ten years 8,437 8,315 Due after ten years 77,266 76,652 Total 86,573 85,871 U.S. Government-sponsored mortgage-backed and related securities 75,529 73,970 Total debt securities $ 162,102 $ 159,841
Proceeds and Gains or Losses Realized on Available for Sale Securities Sold or Called	The following table sets forth the proceeds, gains and losses realized on securities sold or called for each of the years ended December 31: (Amounts in thousands) 2017 2016 2015 Proceeds on securities sold $ 44,801 $ 50,862 $ 12,291 Gross realized gains 524 725 135 Gross realized losses 517 259 60
Fair Value of Securities with Unrealized Losses and an Aging of those Unrealized Losses	The following is a summary of the fair value of securities with unrealized losses and an aging of those unrealized losses at December 31, 2017: (Amounts in thousands) Less than 12 Months 12 Months or More Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. Government agencies and corporations $ — $ — $ 2,860 $ 140 $ 2,860 $ 140 Obligations of states and political subdivisions 7,430 24 18,066 300 25,496 324 U.S. Government-sponsored mortgage-backed securities 24,888 241 40,968 1,163 65,856 1,404 U.S. Government-sponsored collateralized mortgage obligations — — 6,302 161 6,302 161 U.S. Government-guaranteed small business administration pools 2,532 38 7,123 218 9,655 256 Trust preferred securities — — 895 723 895 723 Total $ 34,850 $ 303 $ 76,214 $ 2,705 $ 111,064 $ 3,008 The above table represents 83 investment securities where the fair value is less than the related amortized cost. The following is a summary of the fair value of securities with unrealized losses and an aging of those unrealized losses at December 31, 2016: (Amounts in thousands) Less than 12 Months 12 Months or More Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. Government agencies and corporations $ 7,643 $ 180 $ — $ — $ 7,643 $ 180 Obligations of states and political subdivisions 41,668 2,031 — — 41,668 2,031 U.S. Government-sponsored mortgage-backed securities 68,386 1,487 2,044 59 70,430 1,546 U.S. Government-sponsored collateralized mortgage obligations 9,350 155 — — 9,350 155 U.S. Government-guaranteed small business administration pools 8,757 317 — — 8,757 317 Trust preferred securities — — 825 795 825 795 Total $ 135,804 $ 4,170 $ 2,869 $ 854 $ 138,673 $ 5,024
Other than Temporary Impairment Credit Losses Recognized in Earnings	The following provides a cumulative roll forward of credit losses recognized in earnings for trust preferred securities held for the years ended: (Amounts in thousands) December 31, 2017 2016 2015 Beginning balance $ 140 $ 140 $ 140 Reduction for debt securities for which other-than-temporary impairment has been previously recognized and there is no related other comprehensive income — — — Credit losses on debt securities for which other-than-temporary impairment has not been previously recognized — — — Additional credit losses on debt securities for which other-than-temporary impairment was previously recognized — — — Sale of debt securities — Ending balance $ 140 $ 140 $ 140

Loans and Allowance for Loan 32

Loans and Allowance for Loan Losses (Tables)	12 Months Ended
	Dec. 31, 2017
Receivables [Abstract]
Composition of the Loan Portfolio	The following represents the composition of the loan portfolio for the period ending: (Amounts in thousands) December 31, 2017 2016 Balance % Balance % Commercial $ 113,341 23.3 $ 96,281 22.9 Commercial real estate 283,135 58.1 238,692 56.9 Residential real estate 62,071 12.7 57,008 13.6 Consumer - home equity 26,018 5.3 25,061 6.0 Consumer - other 2,925 0.6 2,726 0.6 Total loans $ 487,490 $ 419,768
Certain Qualitative Factors Considered in Measuring Risk Trends	These factors include, but are not limited to, the following: Factor Considered: Risk Trend: Levels of and trends in charge-offs, classifications and non-accruals Stable Trends in volume and terms Increasing Changes in lending policies and procedures Stable Experience, depth and ability of management, including loan review function Stable Economic trends, including valuation of underlying collateral Stable Concentrations of credit Decreasing
Factors Analyzed and Applied to Loans Internally Graded with Higher Credit Risk	The following factors are analyzed and applied to loans internally graded with higher risk credit in addition to the above factors for non-classified loans: Factor Considered: Risk Trend: Levels and trends in classification Stable Declining trends in financial performance Stable Structure and lack of performance measures Increasing Migration between risk categories Stable
Analysis of Changes in the Allowance for Loan Losses	The following is an analysis of changes in the allowance for loan losses for the periods ended: (Amounts in thousands) December 31, 2017 Commercial Commercial real estate Residential real estate Consumer - home equity Consumer - other Total Balance at beginning of period $ 1,394 $ 3,072 $ 163 $ 150 $ 89 $ 4,868 Loan charge-offs — (654 ) (14 ) (26 ) (146 ) (840 ) Recoveries 388 — 5 10 47 450 Net loan recoveries (charge-offs) 388 (654 ) (9 ) (16 ) (99 ) (390 ) Provision charged to operations (191 ) 284 (37 ) (64 ) 108 100 Balance at end of period $ 1,591 $ 2,702 $ 117 $ 70 $ 98 $ 4,578 (Amounts in thousands) December 31, 2016 Commercial Commercial real estate Residential real estate Consumer - home equity Consumer - other Total Balance at beginning of period $ 1,977 $ 2,926 $ 153 $ 52 $ 86 $ 5,194 Loan charge-offs — (287 ) (35 ) (144 ) (148 ) (614 ) Recoveries 117 35 2 23 61 238 Net loan recoveries (charge-offs) 117 (252 ) (33 ) (121 ) (87 ) (376 ) Provision charged to operations (700 ) 398 43 219 90 50 Balance at end of period $ 1,394 $ 3,072 $ 163 $ 150 $ 89 $ 4,868 (Amounts in thousands) December 31, 2015 Commercial Commercial real estate Residential real estate Consumer - home equity Consumer - other Total Balance at beginning of period $ 2,064 $ 2,754 $ 229 $ 60 $ 95 $ 5,202 Loan charge-offs (470 ) (84 ) (45 ) — (124 ) (723 ) Recoveries 134 10 37 17 62 260 Net loan recoveries (charge-offs) (336 ) (74 ) (8 ) 17 (62 ) (463 ) Provision charged to operations 249 246 (68 ) (25 ) 53 455 Balance at end of period $ 1,977 $ 2,926 $ 153 $ 52 $ 86 $ 5,194
Allowance for Loan Losses and the Recorded Investment in Loans	The following tables present a full breakdown by portfolio classification, the changes in the allowance for loan losses and the recorded investment in loans for the periods ended December 31, 2017 and 2016: (Amounts in thousands) December 31, 2017 Commercial Commercial real estate Residential real estate Consumer - home equity Consumer - other Total Allowance for loan losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ 625 $ — $ — $ — $ — $ 625 Collectively evaluated for impairment 966 2,702 117 70 98 3,953 Total ending allowance balance $ 1,591 $ 2,702 $ 117 $ 70 $ 98 $ 4,578 Loan Portfolio: Individually evaluated for impairment $ 5,581 $ 4,664 $ — $ — $ — $ 10,245 Collectively evaluated for impairment 107,760 278,471 62,071 26,018 2,925 477,245 Total ending loan balance $ 113,341 $ 283,135 $ 62,071 $ 26,018 $ 2,925 $ 487,490 (Amounts in thousands) December 31, 2016 Commercial Commercial real estate Residential real estate Consumer - home equity Consumer - other Total Allowance for loan losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ — $ 178 $ — $ — $ — $ 178 Collectively evaluated for impairment 1,394 2,894 163 150 89 4,690 Total ending allowance balance $ 1,394 $ 3,072 $ 163 $ 150 $ 89 $ 4,868 Loan Portfolio: Individually evaluated for impairment $ 106 $ 6,860 $ — $ — $ — $ 6,966 Collectively evaluated for impairment 96,175 231,832 57,008 25,061 2,726 412,802 Total ending loan balance $ 96,281 $ 238,692 $ 57,008 $ 25,061 $ 2,726 $ 419,768
Summary of Credit Quality Indicators by Internally Assigned Grade	The following is a summary of credit quality indicators by internally assigned grade as of December 31, 2017 and 2016. (Amounts in thousands) Commercial Commercial real estate December 31, 2017 Pass $ 100,436 $ 252,960 Special Mention 4,836 24,307 Substandard 8,069 5,868 Doubtful — — Ending Balance $ 113,341 $ 283,135 (Amounts in thousands) Commercial Commercial real estate December 31, 2016 Pass $ 80,644 $ 208,337 Special Mention 12,836 22,633 Substandard 2,801 7,722 Doubtful — — Ending Balance $ 96,281 $ 238,692
Summary of Consumer Credit Exposure	The following is a summary of consumer credit exposure as of December 31, 2017 and 2016. (Amounts in thousands) Residential real estate Consumer - home equity Consumer- other December 31, 2017 Performing $ 61,824 $ 25,889 $ 2,925 Nonperforming 247 129 — Total $ 62,071 $ 26,018 $ 2,925 (Amounts in thousands) Residential real estate Consumer - home equity Consumer- other December 31, 2016 Performing $ 55,743 $ 25,006 $ 2,726 Nonperforming 1,265 55 — Total $ 57,008 $ 25,061 $ 2,726
Summary of Classes of Loans on Non-Accrual Status	The following is a summary of classes of loans on non-accrual status as of: (Amounts in thousands) December 31, 2017 2016 Commercial $ — $ — Commercial real estate 506 1,458 Residential real estate 247 1,265 Consumer: Consumer - home equity 129 55 Consumer - other — — Total $ 882 $ 2,778
Information Related to Loans Modified in a TDR	There were no loans modified as TDRs during the years ended December 31, 2017 and 2016. The following presents, by class, information related to loans modified in a TDR during the periods ended December 31, 2015. (Dollar amounts in thousands) December 31, 2015 Number of contracts Pre-modification recorded investment Post-modification recorded investment Increase in the allowance Commercial real estate 2 $ 3,154 $ 3,154 $ — Subsequently defaulted — $ —
Aging Analysis of the Recorded Investment of Past Due Loans	The following is an aging analysis of the recorded investment of past due loans as of the periods ended December 31, 2017 and 2016: (Amounts in thousands) 30-59 Days Past Due 60-89 Days Past Due 90 Days Or Greater Total Past Due Current Total Loans Recorded Investment > 90 Days and Accruing December 31, 2017 Commercial $ — $ — $ — $ — $ 113,341 $ 113,341 $ — Commercial real estate 173 12 390 575 282,560 283,135 — Residential real estate 240 29 216 485 61,586 62,071 — Consumer: Consumer - home equity — 82 28 110 25,908 26,018 — Consumer - other 15 — — 15 2,910 2,925 — Total $ 428 $ 123 $ 634 $ 1,185 $ 486,305 $ 487,490 $ — (Amounts in thousands) 30-59 Days Past Due 60-89 Days Past Due 90 Days Or Greater Total Past Due Current Total Loans Recorded Investment > 90 Days and Accruing December 31, 2016 Commercial $ 377 $ — $ — $ 377 $ 95,904 $ 96,281 $ — Commercial real estate 1,189 83 1,347 2,619 236,073 238,692 — Residential real estate 58 9 1,184 1,251 55,757 57,008 — Consumer: Consumer - home equity — 46 55 101 24,960 25,061 — Consumer - other 13 — — 13 2,713 2,726 — Total $ 1,637 $ 138 $ 2,586 $ 4,361 $ 415,407 $ 419,768 $ —
Recorded Investment, Unpaid Principal Balances, Average Recorded Investments and Interest Recognized on Impaired Loans, Excluding Homogenous Loans for Which Impaired Analyses are Not Necessarily Performed	The following table presents the recorded investment and unpaid principal balances for impaired loans, excluding homogenous loans for which impaired analyses are not necessarily performed, with the associated allowance amount, if applicable, at December 31, 2017 and 2016. Also presented are the average recorded investments in the impaired balances and interest income recognized after impairment for the years ended December 31, 2017, 2016 and 2015. (Amounts in thousands) Recorded Investment Unpaid Principal Balance Related Allowance December 31, 2017 With no related allowance recorded: Commercial $ 65 $ 65 $ — Commercial real estate 4,664 4,742 — With an allowance recorded: Commercial 5,516 5,516 625 Commercial real estate — — — Total: Commercial $ 5,581 $ 5,581 $ 625 Commercial real estate $ 4,664 $ 4,742 $ — (Amounts in thousands) Recorded Investment Unpaid Principal Balance Related Allowance December 31, 2016 With no related allowance recorded: Commercial $ 106 $ 106 $ — Commercial real estate 5,681 5,789 — With an allowance recorded: Commercial — — — Commercial real estate 1,179 1,179 178 Total: Commercial $ 106 $ 106 $ — Commercial real estate $ 6,860 $ 6,968 $ 178 (Amounts in thousands) Average Recorded Investment Interest Income Recognized December 31, 2017 With no related allowance recorded: Commercial $ 85 $ 6 Commercial real estate 5,062 291 With an allowance recorded: Commercial 460 — Commercial real estate 527 — Total: Commercial $ 545 $ 6 Commercial real estate $ 5,589 $ 291 (Amounts in thousands) Average Recorded Investment Interest Income Recognized December 31, 2016 With no related allowance recorded: Commercial $ 146 $ 8 Commercial real estate 6,072 335 With an allowance recorded: Commercial 279 — Commercial real estate 1,209 85 Total: Commercial $ 425 $ 8 Commercial real estate $ 7,281 $ 420 (Amounts in thousands) Average Recorded Investment Interest Income Recognized December 31, 2015 With no related allowance recorded: Commercial $ 322 $ 13 Commercial real estate 4,842 181 With an allowance recorded: Commercial 1,341 — Commercial real estate 1,160 84 Total: Commercial $ 1,663 $ 13 Commercial real estate $ 6,002 $ 265

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2017
Property Plant And Equipment [Abstract]
Summary of Premises and Equipment	The following is a summary of premises and equipment: (Amounts in thousands) December 31, 2017 2016 Land $ 2,746 $ 2,746 Premises 9,914 9,846 Equipment 9,711 9,312 Leasehold improvements 264 222 Total premises and equipment 22,635 22,126 Less accumulated depreciation 13,597 12,994 Net book value $ 9,038 $ 9,132

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2017
Deposits [Abstract]
Summary of Interest-Bearing Deposits	The following is a summary of interest-bearing deposits: (Amounts in thousands) December 31, 2017 2016 Demand $ 50,410 $ 45,158 Money market 171,783 133,783 Savings 113,078 112,817 Time: In denominations $250,000 or under 108,761 113,368 In denominations of over $250,000 18,528 17,499 Total $ 462,560 $ 422,625
Stated Maturities of Time Deposits	Stated maturities of time deposits were as follows: (Amounts in thousands) 2017 2018 $ 80,665 2019 9,557 2020 9,699 2021 13,301 2022 6,353 2023 and beyond 7,714 Total $ 127,289
Summary of Time Deposits of One Hundred Thousand or More by Remaining Maturities	The following is a summary of time deposits of $100,000 or more by remaining maturities: (Amounts in thousands) December 31, 2017 Certificates of Deposit Other Time Deposits Total Three months or less $ 11,375 $ 15,199 $ 26,574 Three to six months 4,698 7,962 12,660 Six to twelve months 1,678 3,192 4,870 One through five years 13,527 4,587 18,114 Over five years 3,249 769 4,018 Total $ 34,527 $ 31,709 $ 66,236

Federal Home Loan Bank (FHLB)35

Federal Home Loan Bank (FHLB) Advances and Other Short-Term Borrowings (Tables)	12 Months Ended
	Dec. 31, 2017
Disclosure Federal Home Loan Bank F H L B Advances And Other Borrowings Details [Line Items]
Summary of FHLB Advances and Other Short-Term Borrowings	The following is a summary of FHLB advances and other short-term borrowings: (Amounts in thousands) December 31, Weighted Average Interest Rate 2017 2016 FHLB advances - long-term: Fixed rate payable and convertible fixed rate FHLB advances, with monthly interest payments: Due in 2017 $ — $ 15,500 Due in 2018 1.22 % 4,000 2,000 Due in 2019 1.60 % 6,000 — Due in 2020 1.70 % 4,000 — Total FHLB advances - long-term 1.51 % 14,000 17,500 FHLB advances - short-term: Short-term 1.29 % 12,000 6,000 Cash management 1.44 % 20,000 17,000 Total FHLB advances - short-term 1.38 % 32,000 23,000 Total FHLB advances 1.42 % 46,000 40,500 Other short-term borrowings: Securities sold under repurchase agreements 0.34 % 2,678 2,702 Total FHLB advances and other short-term borrowings 1.36 % $ 48,678 $ 43,202
Summary of Other Short Term Borrowings	The following is a summary of other short-term borrowings: (Amounts in thousands) 2017 2016 2015 Average balance during the year $ 2,018 $ 2,249 $ 4,082 Average interest rate during the year 0.33 % 0.31 % 0.10 % Maximum month-end balance during the year $ 2,678 $ 3,608 $ 7,541 Weighted average interest rate at year end 0.34 % 0.33 % 0.11 % The following table provides additional detail regarding other short-term borrowings: (Amounts in thousands) Repurchase Agreements (Sweep) Accounted for as Secured Borrowings At December 31, 2017 At December 31, 2016 Remaining Contractual Maturity of the Agreements Overnight and Continuous Overnight and Continuous Repurchase agreements: U.S. Government-sponsored mortgage-backed securities $ 3,414 $ 2,898 U.S. Government-sponsored collateralized mortgage obligations — — Total collateral carrying value $ 3,414 $ 2,898 Total short-term borrowings $ 2,678 $ 2,702
Federal Home Loan Bank Advances
Disclosure Federal Home Loan Bank F H L B Advances And Other Borrowings Details [Line Items]
Summary of Other Short Term Borrowings	The following is a summary of FHLB advances – short term: (Amounts in thousands) 2017 2016 2015 Average balance during the year $ 16,917 $ 13,550 $ 14,674 Average interest rate during the year 1.03 % 0.54 % 0.27 % Maximum month-end balance during the year $ 32,000 $ 23,000 $ 23,500 Weighted average interest rate at year end 1.38 % 0.59 % 0.37 %

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2017
Commitments And Contingencies Disclosure [Abstract]
Summary of Remaining Future Minimum Lease Payments	The following is a summary of remaining future minimum lease payments under current non-cancelable operating leases for office facilities: (Amounts in thousands) Years ending: December 31, 2018 $ 175 December 31, 2019 124 December 31, 2020 116 December 31, 2021 62 December 31, 2022 — Total $ 477
Summary of Contractual Commitments	The following is a summary of such contractual commitments: (Amounts in thousands) December 31, 2017 2016 Commitments to extend credit: Fixed rate $ 32,749 $ 18,709 Variable rate 60,508 57,176 Standby letters of credit 3,600 412
Summary of Overdraft Protection	The following table is a summary of overdraft protection for the periods indicated: (Amounts in thousands) December 31, 2017 2016 Overdraft protection available on depositors' accounts $ 9,637 $ 9,655 Balance of overdrafts included in loans 103 80 Average daily balance of overdrafts 115 105 Average daily balance of overdrafts as a percentage of available 1.19 % 1.09 %
Summary of Information Regarding Derivatives	Summary information regarding these derivatives is presented below: (Amounts in thousands) Notional Amount Fair Value December 31, December 31, 2017 2016 Interest Rate Paid Interest Rate Received 2017 2016 Customer interest rate swap Maturing in 2020 $ 2,504 $ 2,594 1 Mo. Libor + Margin Fixed $ (16 ) $ 15 Maturing in 2025 5,288 5,630 1 Mo. Libor + Margin Fixed 36 101 Maturing in 2026 2,064 2,178 1 Mo. Libor + Margin Fixed (44 ) (29 ) Maturing in 2027 14,197 6,150 1 Mo. Libor + Margin Fixed 209 210 Total $ 24,053 $ 16,552 $ 185 $ 297 Third party interest rate swap Maturing in 2020 $ 2,504 $ 2,594 Fixed 1 Mo. Libor + Margin $ 16 $ (15 ) Maturing in 2025 5,288 5,630 Fixed 1 Mo. Libor + Margin (36 ) (101 ) Maturing in 2026 2,064 2,178 Fixed 1 Mo. Libor + Margin 44 29 Maturing in 2027 14,197 6,150 Fixed 1 Mo. Libor + Margin (209 ) (210 ) Total $ 24,053 $ 16,552 $ (185 ) $ (297 )
Schedule of Fair Values of Derivative Instruments	The following table presents the fair values of derivative instruments in the balance sheet. (Amounts in thousands) Assets Liabilities Balance Sheet Location Fair Value Balance Sheet Location Fair Value December 31, 2017 Interest rate derivatives Other assets $ 185 Other liabilities $ 185 December 31, 2016 Interest rate derivatives Other assets $ 297 Other liabilities $ 297

Benefit Plans (Tables)

Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Reconcilement of the Accumulated Liability for the Benefit Obligation	The following table reconciles the accumulated liability for the benefit obligation of these agreements: (Amounts in thousands) Years Ended December 31, 2017 2016 2015 Beginning balance $ 2,957 $ 2,760 $ 2,549 Benefit expense 387 359 369 Benefit payments (162 ) (162 ) (158 ) Ending balance $ 3,182 $ 2,957 $ 2,760
Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Reconcilement of the Accumulated Liability for the Benefit Obligation	The following table presents the changes in the accumulated liability. (Amounts in thousands) December 31, 2017 2016 2015 Beginning balance $ 840 $ 856 $ 616 Expense recorded 50 23 132 Other comprehensive (income) loss recorded (14 ) (39 ) 108 Ending balance $ 876 $ 840 $ 856

Federal Income Taxes (Tables)

Federal Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Composition of income tax expense (benefit)	With the passage of the Tax Cuts and Jobs Act (“Tax Act”), tax law for corporations has several material changes effective beginning in 2018. The most significant change is the reduction in the corporate tax rate from 34% to 21%. Because this reduced rate was signed into law in December 2017, generally accepted accounting principles require recognition of the lower rate on the Company’s deferred tax position as of December 31, 2017. As the Company is in a net deferred tax asset position, the reduction of this benefit resulted in a $1.2 million additional charge to Federal Income Tax expense in the Company’s 2017 Consolidated Statements of Income. The composition of income tax expense is as follows: (Amounts in thousands) Years Ended December 31 , 2017 2016 2015 Current $ 1,199 $ 1,256 $ 916 Deferred (28 ) (129 ) 303 Change in corporate tax rate 1,246 — — Total $ 2,417 $ 1,127 $ 1,219
Summary of net deferred taxes included in other assets	The following is a summary of net deferred taxes included in other assets: (Amounts in thousands) December 31, 2017 2016 Gross deferred tax assets: Allowance for loan and other real estate losses $ 961 $ 1,655 Deferred loan origination cost - net 234 303 Impairment loss on securities 29 48 Deferred compensation 668 1,006 AMT credit carryforward 904 904 Unrealized loss on available-for-sale securities 475 1,499 Other items 333 540 Total gross deferred tax assets 3,604 5,955 Gross deferred tax liabilities: Premises and equipment (362 ) (566 ) Other items (325 ) (524 ) Total net deferred tax liabilities (687 ) (1,090 ) Net deferred tax asset $ 2,917 $ 4,865
Reconciliation of the valuation allowance for net deferred tax assets	The following is a reconciliation of the valuation allowance for net deferred tax assets: December 31, 2017 2016 Valuation allowance at beginning of year $ — $ 94,000 Utilization of capital loss carryover — (94,000 ) Valuation allowance at end of year $ — $ —
Reconciliation between tax expense using the statutory tax rate of 34% and the income tax provision	The following is a reconciliation between tax expense using the statutory tax rate of 34% and the income tax provision: (Amounts in thousands) Years Ended December 31 , 2017 2016 2015 Statutory tax expense $ 2,301 $ 2,039 $ 1,903 Tax effect of non-taxable interest income (663 ) (628 ) (600 ) Tax effect of earnings on bank-owned life insurance-net (414 ) (112 ) (115 ) Tax effect of deferred tax valuation reversal — (94 ) — Change in corporate tax rate 1,246 — — Tax effect of low income housing credit (149 ) (142 ) (54 ) Tax effect of non-deductible expenses 96 64 85 Federal income tax expense $ 2,417 $ 1,127 $ 1,219

Fair Value (Tables)

Fair Value (Tables)	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Assets Reported on Consolidated Balance Sheets at their Fair Value	The following table presents the assets reported on the consolidated balance sheets at their fair value as of December 31, 2017 and December 31, 2016 by level within the fair value hierarchy. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. (Amounts in thousands) Fair Value Measurements at December 31, 2017 Using Description December 31, 2017 Quoted Prices in Active Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) ASSETS U.S. Government agencies and corporations $ 3,205 $ — $ 3,205 $ — Obligations of states and political subdivisions 72,116 — 72,116 — U.S. Government-sponsored mortgage-backed securities 67,668 — 67,668 — U.S. Government-sponsored collateralized mortgage obligations 6,302 — 6,302 — U.S. Government-guaranteed small business administration pools 9,655 — 9,655 — Trust preferred securities 895 — — 895 Regulatory stock 2,581 2,581 — — Loans held for sale 2,780 2,780 — — Interest rate derivatives 185 — 185 — LIABILITIES Interest rate derivatives $ 185 $ — $ 185 $ — (Amounts in thousands) Fair Value Measurements at December 31, 2016 Using Description December 31, 2016 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) ASSETS U.S. Government agencies and corporations $ 7,988 $ — $ 7,988 $ — Obligations of states and political subdivisions 66,770 — 66,770 — U.S. Government-sponsored mortgage-backed securities 79,767 — 79,767 — U.S. Government-sponsored collateralized mortgage obligations 9,349 — 9,349 — U.S. Government-guaranteed small business administration pools 11,939 — 11,939 — Trust preferred securities 825 — — 825 Regulatory stock 2,581 2,581 — — Loans held for sale 4,554 4,554 — — Interest rate derivatives 297 — 297 — LIABILITIES Interest rate derivatives $ 297 $ — $ 297 $ —
Changes in the Level 3 Fair Value Category	The following tables present the changes in the Level 3 fair value category for the years ended December 31, 2017, 2016 and 2015. The Company classifies financial instruments in Level 3 of the fair-value hierarchy when there is reliance on at least one significant unobservable input to the valuation model. In addition to these unobservable inputs, the valuation models for Level 3 financial instruments typically also rely on a number of inputs that are readily observable either directly or indirectly. (Amounts in thousands) December 31, 2017 2016 2015 Trust preferred securities Trust preferred securities Trust preferred securities Beginning balance $ 825 $ 778 $ 779 Net realized/unrealized gains/(losses) included in: Noninterest income — — — Other comprehensive income 72 67 21 Discount accretion (premium amortization) — — — Sales — — — Purchases, issuance, and settlements (2 ) (20 ) (22 ) Ending balance $ 895 $ 825 $ 778 Losses included in net income for the period relating to assets held at period end $ — $ — $ —
Breakdown of Trust Preferred Securities	The following table details the breakdown of trust preferred securities for the periods indicated: (Dollar amounts in thousands) December 31, 2017 2016 Total number of trust preferred securities 2 2 Par value $ 1,939 $ 1,970 Number not considered OTTI 1 1 Par value $ 903 $ 940 Number considered OTTI 1 1 Par value $ 1,036 $ 1,030 Life-to-date impairment recognized in earnings $ 140 $ 140 Life-to-date impairment recognized in other comprehensive income 723 795 Total life-to-date impairment $ 863 $ 935
Trust Preferred Security with OTTI, its Credit Rating at Period End and Related Losses Recognized in Earnings	The following table details the one debt security with other-than-temporary impairment, its credit rating at December 31, 2017 and the related loss recognized in earnings: (Dollar amounts in thousands) Moody’s/Fitch Rating Amount of OTTI related to credit loss at January 1, 2017 Additions March 31, 2017 Additions in QTD June 30, 2017 Additions in QTD September 30, 2017 Additions in QTD December 31, 2017 Amount of OTTI related to credit loss at December 31, 2017 Trapeza IX B-1 Caa2/CC $ 140 $ — $ — $ — $ — $ 140 The following table details the one debt security with other-than-temporary impairment, its credit rating at December 31, 2016 and the related losses recognized in earnings: (Dollar amounts in thousands) Moody’s/Fitch Rating Amount of OTTI related to credit loss at January 1, 2016 Additions March 31, 2016 Additions in QTD June 30, 2016 Additions in QTD September 30, 2016 Additions in QTD December 31, 2016 Amount of OTTI related to credit loss at December 31, 2016 Trapeza IX B-1 Caa2/CC $ 140 $ — $ — $ — $ — $ 140
Additional Information Related to the Company's Trust Preferred Securities	The following table provides additional information related to the Company’s trust preferred securities as of December 31, 2017 used to evaluate other-than-temporary impairments: (Dollar amounts in thousands) Deal Class Amortized Cost Fair Value Unrealized Gain/(Loss) Moody’s/ Fitch Rating Number of Issuers Currently Performing Deferrals and Defaults as a % of Current Collateral Excess Subordination as a % of Current Performing Collateral PreTSL XXIII C-2 $ 758 $ 336 $ (422 ) Ba1/CCC 90 20.9 % 7.12 % Trapeza IX B-1 860 559 (301 ) Caa2/CC 30 14.0 — Total $ 1,618 $ 895 $ (723 ) The following table provides additional information related to the Company’s trust preferred securities as of December 31, 2016 used to evaluate other-than-temporary impairments: (Dollar amounts in thousands) Deal Class Amortized Cost Fair Value Unrealized Gain/(Loss) Moody’s/ Fitch Rating Number of Issuers Currently Performing Deferrals and Defaults as a % of Current Collateral Excess Subordination as a % of Current Performing Collateral PreTSL XXIII C-2 $ 760 $ 310 $ (450 ) B2/CCC 90 22.5 % 5.33 % Trapeza IX B-1 860 515 (345 ) Caa2/CC 32 13.3 — Total $ 1,620 $ 825 $ (795 )
Assets Measured on a Nonrecurring Basis on the Consolidated Balance Sheets at their Fair Value	The following table presents the assets measured on a nonrecurring basis on the Consolidated Balance Sheets at their fair value as of December 31, 2017 and December 31, 2016, by level within the fair value hierarchy. Impaired loans that are collateral dependent are written down to fair value through the establishment of specific reserves. Techniques used to value the collateral that secure the impaired loans include: quoted market prices for identical assets classified as Level 1 inputs; observable inputs, employed by certified appraisers, for similar assets classified as Level 2 inputs. In cases where valuation techniques include inputs that are unobservable and are based on estimates and assumptions developed by management based on the best information available under each circumstance, the asset valuation is classified as Level 3 inputs. Other real estate owned is carried at the lower of cost or fair value less estimated costs to sell. (Amounts in thousands) December 31, 2017 Level 1 Level 2 Level 3 Total Assets measured on a nonrecurring basis: Impaired loans $ — $ — $ 9,620 $ 9,620 (Amounts in thousands) December 31, 2016 Level 1 Level 2 Level 3 Total Assets measured on a nonrecurring basis: Impaired loans $ — $ — $ 6,788 $ 6,788
Carrying Amounts and Estimated Fair Values of the Company's Financial Instruments	The carrying amounts and estimated fair values of the Company’s financial instruments are as follows: (Amounts in thousands) December 31, 2017 Carrying Amount Level 1 Level 2 Level 3 Fair Value ASSETS: Cash and cash equivalents $ 19,125 $ 19,125 $ — $ — $ 19,125 Investment securities available-for-sale 162,422 2,581 158,946 895 162,422 Loans held for sale 2,780 2,780 — — 2,780 Loans, net of allowance for loan losses 482,912 — — 486,230 486,230 Bank-owned life insurance 17,650 17,650 — — 17,650 Accrued interest receivable 2,193 2,193 — — 2,193 Interest rate derivatives 185 — 185 — 185 LIABILITIES: Demand, savings and money market deposits $ 458,562 $ 458,562 $ — $ — $ 458,562 Time deposits 127,289 — — 128,624 128,624 Short-term borrowings 2,678 2,678 — — 2,678 Federal Home Loan Bank advances - short term 32,000 — — 31,982 31,982 Federal Home Loan Bank advances - long term 14,000 — — 13,880 13,880 Subordinated debt 5,155 — — 4,785 4,785 Accrued interest payable 325 325 — — 325 Interest rate derivatives 185 — 185 — 185 (Amounts in thousands) December 31, 2016 Carrying Amount Level 1 Level 2 Level 3 Fair Value ASSETS: Cash and cash equivalents $ 15,351 $ 15,351 $ — $ — $ 15,351 Investment securities available-for-sale 179,219 2,581 175,813 825 179,219 Loans held for sale 4,554 4,554 — — 4,554 Loans, net of allowance for loan losses 414,900 — — 418,532 418,532 Bank-owned life insurance 17,376 17,376 — — 17,376 Accrued interest receivable 2,041 2,041 — — 2,041 Interest rate derivatives 297 — 297 — 297 LIABILITIES: Demand, savings and money market deposits $ 408,983 $ 408,983 $ — $ — $ 408,983 Time deposits 130,867 — — 133,108 133,108 Short-term borrowings 2,702 2,702 — — 2,702 Federal Home Loan Bank advances - short term 23,000 17,000 — 5,998 22,998 Federal Home Loan Bank advances - long term 17,500 — — 17,580 17,580 Subordinated debt 5,155 — — 4,363 4,363 Accrued interest payable 288 288 — — 288 Interest rate derivatives 297 — 297 — 297
Significant Unobservable Inputs for Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis	The following table presents quantitative information about the Level 3 significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis at December 31, 2017. (Amounts Fair value at December 31, 2017 Valuation Technique Significant Unobservable Input Description of Inputs Trust preferred securities $ 895 Discounted Cash Flow Projected Prepayments 1) Trust preferred securities issued by banks subject to Dodd-Frank's phase-out of trust preferred securities from Tier 1 Capital. All fixed rate within one year; variable rate at increasing intervals depending on spread. 2) Trust preferred securities issued by healthy, well capitalized banks that have fixed rate coupons greater than 8%. 3) 1% annually for all other fixed rate issues and all variable rate issues. 4) Zero for collateral issued by REITs and 2% for insurance companies. Projected Defaults 1) All deferring issuers that do not meet the criteria for curing, as described below, are projected to default immediately. 2) Banks with high, near team default risk are identified using a CAMELS model, and projected to default immediately. Healthy banks are projected to default at a rate of 2% annually for 2 years, and 0.36% annually thereafter. 3) Insurance and REIT defaults are projected according to the historical default rates exhibited by companies with the same credit ratings. Historical default rates are doubled in each of the first two years of the projection to account for current economic conditions. Unrated issuers are assumed to have CCC- ratings. Projected Cures 1) Deferring issuers that have definitive agreements to either be acquired or recapitalized. Projected Recoveries 1) Zero for insurance companies, REITs and insolvent banks, and 10% for projected bank deferrals lagged 2 years. Discount Rates 1) Ranging from ~9.10% to ~14.74%, depending on each bond's seniority and remaining subordination after projected losses. Impaired loans 4,891 Cash Flow Discount Rates Range 4.50% to 5.38% Weighted average 4.88 % The following table presents quantitative information about the Level 3 significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis at December 31, 2016. (Amounts Fair value at December 31, 2016 Valuation Technique Significant Unobservable Input Description of Inputs Trust preferred securities $ 825 Discounted Cash Flow Projected Prepayments 1) Trust preferred securities issued by banks subject to Dodd-Frank's phase-out of trust preferred securities from Tier 1 Capital. All fixed rate within one year; variable rate at increasing intervals depending on spread. 2) Trust preferred securities issued by healthy, well capitalized banks that have fixed rate coupons greater than 8%. 3) 1% annually for all other fixed rate issues and all variable rate issues. 4) Zero for collateral issued by REITs and 2% for insurance companies. Projected Defaults 1) All deferring issuers that do not meet the criteria for curing, as described below, are projected to default immediately. 2) Banks with high, near team default risk are identified using a CAMELS model, and projected to default immediately. Healthy banks are projected to default at a rate of 2% annually for 2 years, and 0.36% annually thereafter. 3) Insurance and REIT defaults are projected according to the historical default rates exhibited by companies with the same credit ratings. Historical default rates are doubled in each of the first two years of the projection to account for current economic conditions. Unrated issuers are assumed to have CCC- ratings. Projected Cures 1) Deferring issuers that have definitive agreements to either be acquired or recapitalized. Projected Recoveries 1) Zero for insurance companies, REITs and insolvent banks, and 10% for projected bank deferrals lagged 2 years. Discount Rates 1) Ranging from ~9.69% to ~15.11%, depending on each bond's seniority and remaining subordination after projected losses. Impaired loans 1,001 Appraisal of Collateral (1) Appraisal Adjustments (2) (20)% Weighted average (20)% Liquidation Expenses (2) Range (8)% to (12)% Weighted average (10)% (1) Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various Level 3 inputs which are not identifiable. (2) Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. The range and weighted average of liquidation expenses are presented as a percent of the appraisal. The adjustment of appraised value is measured as the effect on fair value as a percentage of unpaid principal.

Accumulated Other Comprehensi40

Accumulated Other Comprehensive (Loss) Income (Tables)	12 Months Ended
	Dec. 31, 2017
Equity [Abstract]
Schedule of Changes in Accumulated Other Comprehensive Loss or Income	The following table presents the changes in accumulated other comprehensive loss or income by component net of tax for the years ended December 31, 2017 and 2016. (Amounts in thousands) Unrealized gains (losses) on available-for-sale securities (a) Change in pension and postretirement obligations (a) Balance as of December 31, 2015 $ (147 ) $ (91 ) Other comprehensive (loss) income before reclassification (2,454 ) 39 Amount reclassified from accumulated other comprehensive loss (308 ) — Total other comprehensive loss (2,762 ) 39 Balance as of December 31, 2016 $ (2,909 ) $ (52 ) Other comprehensive income before reclassification 1,420 14 Reclassification of certain income tax effects from accumulated other comprehensive income (294 ) — Amount reclassified from accumulated other comprehensive loss (4 ) — Total other comprehensive income 1,122 14 Balance as of December 31, 2017 $ (1,787 ) $ (38 ) (a) All amounts are net of tax. Amounts in parentheses indicate debits.
Schedule of Reclassifications out of Each Component of Accumulated Other Comprehensive Loss or Income	The following table presents significant amounts reclassified out of each component of accumulated other comprehensive loss or income for the years ended December 31, 2017 and 2016. (Amounts in thousands) December 31, 2017 Amount accumulated other comprehensive Affected statement where net income is presented Details about other comprehensive income or loss: Unrealized gains on available-for-sale securities $ 7 Investment securities available-for-sale gains, net (3 ) Federal income tax expense $ 4 (Amounts in thousands) December 31, 2016 Amount accumulated other comprehensive Affected line item in the statement where net income is presented Details about other comprehensive income or loss: Unrealized gains on available-for-sale securities $ 466 Investment securities available-for-sale gains, net (158 ) Federal income tax expense $ 308 (a) Amounts in parentheses indicate debits to net income.

Regulatory Matters (Tables)

Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2017
Regulatory Capital Requirements [Abstract]
Schedule of Regulatory Capital Requirement	At December 31, 2017 and December 31, 2016, actual capital levels and minimum required levels for the Company, if it were not covered by the Small Bank Holding Company Policy, were: (Amounts in thousands) Actual Minimum required for capital adequacy purposes December 31, 2017 Amount Ratio Amount Ratio CET1 capital (to risk-weighted assets) $ 63,455 12.37 % $ 23,082 4.5 % Tier 1 capital (to risk-weighted assets) 68,455 13.35 % 30,776 6.0 % Total capital (to risk-weighted assets) 73,116 14.26 % 41,033 8.0 % Tier 1 capital (to average assets) 68,455 10.77 % 25,416 4.0 % (Amounts in thousands) Actual Minimum required for capital adequacy purposes December 31, 2016 Amount Ratio Amount Ratio CET1 capital (to risk-weighted assets) $ 60,631 12.97 % $ 21,033 4.5 % Tier 1 capital (to risk-weighted assets) 65,631 14.04 % 28,044 6.0 % Total capital (to risk-weighted assets) 70,583 15.10 % 37,392 8.0 % Tier 1 capital (to average assets) 65,631 10.46 % 25,086 4.0 %

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2017
Related Party Transactions [Abstract]
Schedule of Analysis of Related Party Loan	Certain directors, executive officers and companies with whom they are affiliated were loan customers during 2017. The following is an analysis of such loans: (Amounts in thousands) Total related-party loans at December 31, 2016 $ 4,283 New related-party loans 3,038 Repayments or other (3,091 ) Total related-party loans at December 31, 2017 $ 4,230

Condensed Financial Informati43

Condensed Financial Information Parent Company (Tables)	12 Months Ended
	Dec. 31, 2017
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]
Balance Sheets	BALANCE SHEETS (Amounts in thousands) December 31, 2017 2016 ASSETS Cash $ 261 $ 320 Investment in bank subsidiary 58,028 53,759 Subordinated note from subsidiary bank 6,000 6,000 Other assets 3,489 3,700 Total assets $ 67,778 $ 63,779 LIABILITIES Other liabilities $ 993 $ 954 Subordinated debt (Note 7) 5,155 5,155 Total liabilities 6,148 6,109 SHAREHOLDERS’ EQUITY Common stock 23,641 23,641 Additional paid-in capital 20,928 20,878 Retained earnings 24,403 21,485 Accumulated other comprehensive loss (1,825 ) (2,961 ) Treasury stock (5,517 ) (5,373 ) Total shareholders’ equity 61,630 57,670 Total liabilities & shareholders’ equity $ 67,778 $ 63,779
Condensed Statement of Comprehensive Income	STATEMENTS OF COMPREHENSIVE INCOME (Amounts in thousands) Years ended December 31 , 2017 2016 2015 Dividends from bank subsidiary $ 1,900 $ 1,400 $ 3,310 Interest and dividend income 153 121 97 Other income 58 60 63 Interest on subordinated debt (138 ) (112 ) (91 ) Other expenses (568 ) (497 ) (513 ) Income before income tax and equity in undistributed earnings of subsidiaries 1,405 972 2,866 Income tax benefit 106 265 133 Equity in undistributed earnings of subsidiaries 2,839 3,634 1,379 Net income $ 4,350 $ 4,871 $ 4,378 Comprehensive income $ 5,780 $ 2,148 $ 3,764
Statements of Cash Flows	STATEMENTS OF CASH FLOWS (Amounts in thousands) Years ended December 31 , 2017 2016 2015 Cash flow from operating activities Net income $ 4,350 $ 4,871 $ 4,378 Adjustments to reconcile net income to net cash flow from operating activities: Equity in undistributed net income of subsidiaries (2,839 ) (3,634 ) (1,379 ) Deferred tax benefit 62 (15 ) (6 ) Equity compensation 143 75 — Change in other assets and liabilities 188 138 (35 ) Net cash flow from operating activities 1,904 1,435 2,958 Cash deficit from financing activities Dividends paid (1,726 ) (1,237 ) (1,082 ) Treasury shares purchased (237 ) — (1,850 ) Net cash deficit from financing activities (1,963 ) (1,237 ) (2,932 ) Net change in cash (59 ) 198 26 Cash Beginning of year 320 122 96 End of year $ 261 $ 320 $ 122

Equity Compensation (Tables)

Equity Compensation (Tables)	12 Months Ended
	Dec. 31, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Schedule of Nonvested Restricted Stock Units Activity	The following is the activity under the two plans during the period ended December 31, 2017: Restricted Stock Units Units Price at Grant Date Nonvested at January 1, 2017 13,683 $ 15.25 Granted 12,976 18.25 Vested (4,556 ) 15.25 Forfeited (1,289 ) 16.93 Nonvested at December 31, 2017 20,814 $ 17.02

Summary of Significant Accoun45

Summary of Significant Accounting Policies (Details Textual)	12 Months Ended
	Dec. 31, 2017USD ($)Segment
Summary of Significant Accounting Policies (Textual) [Abstract]
Number of operating segment | Segment	1
Loan is placed on non-accrual status	90 days
Loans delinquent period for impairment evaluation	90 days
Number of days before charge down/charge off for consumer loans	180 days
Charge off period for loans other than consumer	90 days
Bank owned life insurance to tier one capital percentage	15.00%
Securities classified as held-to-maturity or trading	$ 0
New Accounting Pronouncement, Early Adoption, Effect
Summary of Significant Accounting Policies (Textual) [Abstract]
Cumulative effect adjustment between retained earnings and accumulated other comprehensive income	$ 294,000
Minimum
Summary of Significant Accounting Policies (Textual) [Abstract]
Estimated useful lives	5 years
Maximum
Summary of Significant Accounting Policies (Textual) [Abstract]
Estimated useful lives	40 years
Maximum | ASU 2016-02
Summary of Significant Accounting Policies (Textual) [Abstract]
Anticipated increase in assets, in percent	1.00%
Anticipated increase in liabilities, in percent	1.00%

Summary of Significant Accoun46

Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Computation of basic earnings per common share
Net income	$ 4,350	$ 4,871	$ 4,378
Weighted average common shares outstanding	4,407,254	4,406,005	4,497,825
Net effect of dilutive common share equivalents	4,220	1,264
Adjusted average shares outstanding - dilutive	4,411,474	4,407,269	4,497,825
Basic earnings per share	$ 0.99	$ 1.11	$ 0.97
Dilutive earnings per share	$ 0.99	$ 1.11	$ 0.97

Investment Securities (Details)

Investment Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Summary of investment securities
Available-for-sale Securities, Amortized Cost	$ 164,683	$ 183,625
Available-for-sale Securities, Gross Unrealized Gains	747	618
Available-for-sale Securities, Gross Unrealized Losses	3,008	5,024
Available-for-sale securities, Fair Value	162,422	179,219
U.S. Government agencies and corporations
Summary of investment securities
Available-for-sale Securities, Amortized Cost	3,344	8,165
Available-for-sale Securities, Gross Unrealized Gains	1	3
Available-for-sale Securities, Gross Unrealized Losses	140	180
Available-for-sale securities, Fair Value	3,205	7,988
Obligations of states and political subdivisions
Summary of investment securities
Available-for-sale Securities, Amortized Cost	71,700	68,219
Available-for-sale Securities, Gross Unrealized Gains	740	582
Available-for-sale Securities, Gross Unrealized Losses	324	2,031
Available-for-sale securities, Fair Value	72,116	66,770
U.S. Government-sponsored mortgage-backed securities
Summary of investment securities
Available-for-sale Securities, Amortized Cost	69,066	81,281
Available-for-sale Securities, Gross Unrealized Gains	6	32
Available-for-sale Securities, Gross Unrealized Losses	1,404	1,546
Available-for-sale securities, Fair Value	67,668	79,767
U.S. Government-sponsored collateralized mortgage obligations
Summary of investment securities
Available-for-sale Securities, Amortized Cost	6,463	9,504
Available-for-sale Securities, Gross Unrealized Losses	161	155
Available-for-sale securities, Fair Value	6,302	9,349
U.S. Government-guaranteed small business administration pools
Summary of investment securities
Available-for-sale Securities, Amortized Cost	9,911	12,255
Available-for-sale Securities, Gross Unrealized Gains		1
Available-for-sale Securities, Gross Unrealized Losses	256	317
Available-for-sale securities, Fair Value	9,655	11,939
Trust preferred securities
Summary of investment securities
Available-for-sale Securities, Amortized Cost	1,618	1,620
Available-for-sale Securities, Gross Unrealized Losses	723	795
Available-for-sale securities, Fair Value	895	825
Total debt securities
Summary of investment securities
Available-for-sale Securities, Amortized Cost	162,102	181,044
Available-for-sale Securities, Gross Unrealized Gains	747	618
Available-for-sale Securities, Gross Unrealized Losses	3,008	5,024
Available-for-sale securities, Fair Value	159,841	176,638
Federal Home Loan Bank (FHLB) stock
Summary of investment securities
Available-for-sale Securities, Amortized Cost	2,355	2,355
Available-for-sale securities, Fair Value	2,355	2,355
Federal Reserve Bank (FRB) stock
Summary of investment securities
Available-for-sale Securities, Amortized Cost	226	226
Available-for-sale securities, Fair Value	226	226
Total regulatory stock
Summary of investment securities
Available-for-sale Securities, Amortized Cost	2,581	2,581
Available-for-sale securities, Fair Value	$ 2,581	$ 2,581

Investment Securities (Details

Investment Securities (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Investments Debt And Equity Securities [Abstract]
Unrealized gains		$ 7
Unrealized losses		(3)
Net unrealized gains		4
Net realized losses	$ (47)	(15)
Trading securities losses, net	$ (47)	$ (11)

Investment Securities (Detail49

Investment Securities (Details 2) $ in Thousands	Dec. 31, 2017USD ($)
Amortized cost and fair value of debt securities by contractual maturity
Amortized Cost, Due in one year or less	$ 10
Amortized Cost, Due after one year through five years	860
Amortized Cost, Due after five years through ten years	8,437
Amortized Cost, Due after ten years	77,266
Amortized Cost, Total	86,573
Total debt securities, Amortized Cost	162,102
Fair Value, Due in one year or less	10
Fair Value, Due after one year through five years	894
Fair Value, Due after five years through ten years	8,315
Fair Value, Due after ten years	76,652
Fair Value, Total	85,871
Total debt securities, Fair Value	159,841
U.S. Government-sponsored mortgage-backed and related securities
Amortized cost and fair value of debt securities by contractual maturity
Total debt securities, Amortized Cost	75,529
Total debt securities, Fair Value	$ 73,970

Investment Securities (Detail50

Investment Securities (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Proceeds, gains and losses realized on securities sold or called
Proceeds on securities sold	$ 44,801	$ 50,862	$ 12,291
Gross realized gains	524	725	135
Gross realized losses	$ 517	$ 259	$ 60

Investment Securities (Detail51

Investment Securities (Details Textual)	12 Months Ended
	Dec. 31, 2017USD ($)SecurityInvestment	Dec. 31, 2016USD ($)SecurityInvestment	Dec. 31, 2015USD ($)
Investments Debt And Equity Securities [Abstract]
Carrying value of investment securities for pledge	$ 105,000,000	$ 111,500,000
Investment securities with fair value less than amortized cost | Security	83	122
Impairment loss recognized through impairment assessment process	$ 0	$ 0	$ 0
Non-accrual investment securities	$ 895,000	$ 825,000
Trust preferred securities in nonaccrual status | Investment	2	2
Estimated length of interest payment delays	10 years

Investment Securities (Detail52

Investment Securities (Details 4) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Fair Value
Fair Value, Less than 12 Months	$ 34,850	$ 135,804
Fair Value, 12 Months or More	76,214	2,869
Fair Value, Total	111,064	138,673
Unrealized Losses
Unrealized Losses, Less than 12 Months	303	4,170
Unrealized Losses, 12 Months or More	2,705	854
Unrealized Losses, Total	3,008	5,024
U.S. Government agencies and corporations
Fair Value
Fair Value, Less than 12 Months		7,643
Fair Value, 12 Months or More	2,860
Fair Value, Total	2,860	7,643
Unrealized Losses
Unrealized Losses, Less than 12 Months		180
Unrealized Losses, 12 Months or More	140
Unrealized Losses, Total	140	180
Obligations of states and political subdivisions
Fair Value
Fair Value, Less than 12 Months	7,430	41,668
Fair Value, 12 Months or More	18,066
Fair Value, Total	25,496	41,668
Unrealized Losses
Unrealized Losses, Less than 12 Months	24	2,031
Unrealized Losses, 12 Months or More	300
Unrealized Losses, Total	324	2,031
U.S. Government-sponsored mortgage-backed securities
Fair Value
Fair Value, Less than 12 Months	24,888	68,386
Fair Value, 12 Months or More	40,968	2,044
Fair Value, Total	65,856	70,430
Unrealized Losses
Unrealized Losses, Less than 12 Months	241	1,487
Unrealized Losses, 12 Months or More	1,163	59
Unrealized Losses, Total	1,404	1,546
U.S. Government-sponsored collateralized mortgage obligations
Fair Value
Fair Value, Less than 12 Months		9,350
Fair Value, 12 Months or More	6,302
Fair Value, Total	6,302	9,350
Unrealized Losses
Unrealized Losses, Less than 12 Months		155
Unrealized Losses, 12 Months or More	161
Unrealized Losses, Total	161	155
U.S. Government-guaranteed small business administration pools
Fair Value
Fair Value, Less than 12 Months	2,532	8,757
Fair Value, 12 Months or More	7,123
Fair Value, Total	9,655	8,757
Unrealized Losses
Unrealized Losses, Less than 12 Months	38	317
Unrealized Losses, 12 Months or More	218
Unrealized Losses, Total	256	317
Trust preferred securities
Fair Value
Fair Value, 12 Months or More	895	825
Fair Value, Total	895	825
Unrealized Losses
Unrealized Losses, 12 Months or More	723	795
Unrealized Losses, Total	$ 723	$ 795

Investment Securities (Detail53

Investment Securities (Details 5) - Trust preferred securities - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Mar. 31, 2017	Mar. 31, 2016
Cumulative roll forward of credit losses recognized in earnings for trust preferred securities
Beginning balance, Amount of OTTI related to credit loss		$ 140	$ 140
Ending balance, Amount of OTTI related to credit loss	$ 140

Loans and Allowance for Loan 54

Loans and Allowance for Loan Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Composition of the loan portfolio
Total loans	$ 487,490	$ 419,768
Commercial
Composition of the loan portfolio
Total loans	$ 113,341	$ 96,281
Percentage of loans	23.30%	22.90%
Commercial real estate
Composition of the loan portfolio
Total loans	$ 283,135	$ 238,692
Percentage of loans	58.10%	56.90%
Residential real estate
Composition of the loan portfolio
Total loans	$ 62,071	$ 57,008
Percentage of loans	12.70%	13.60%
Consumer | Home equity
Composition of the loan portfolio
Total loans	$ 26,018	$ 25,061
Percentage of loans	5.30%	6.00%
Consumer | Other
Composition of the loan portfolio
Total loans	$ 2,925	$ 2,726
Percentage of loans	0.60%	0.60%

Loans and Allowance for Loan 55

Loans and Allowance for Loan Losses (Details 1)	12 Months Ended
	Dec. 31, 2017
Factor Considered:
Levels of and trends in charge-offs, classifications and non-accruals	Stable
Trends in volume and terms	Increasing
Changes in lending policies and procedures	Stable
Experience, depth and ability of management, including loan review function	Stable
Economic trends, including valuation of underlying collateral	Stable
Concentrations of credit	Decreasing

Loans and Allowance for Loan 56

Loans and Allowance for Loan Losses (Details 2)	12 Months Ended
	Dec. 31, 2017
Factor Considered:
Levels and trends in classification	Stable
Declining trends in financial performance	Stable
Structure and lack of performance measures	Increasing
Migration between risk categories	Stable

Loans and Allowance for Loan 57

Loans and Allowance for Loan Losses (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Analysis of changes in the allowance for loan losses
Balance at beginning of period	$ 4,868	$ 5,194	$ 5,202
Loan charge-offs	(840)	(614)	(723)
Recoveries	450	238	260
Net loan recoveries (charge-offs)	(390)	(376)	(463)
Provision charged to operations	100	50	455
Balance at end of period	4,578	4,868	5,194
Commercial
Analysis of changes in the allowance for loan losses
Balance at beginning of period	1,394	1,977	2,064
Loan charge-offs			(470)
Recoveries	388	117	134
Net loan recoveries (charge-offs)	388	117	(336)
Provision charged to operations	(191)	(700)	249
Balance at end of period	1,591	1,394	1,977
Commercial real estate
Analysis of changes in the allowance for loan losses
Balance at beginning of period	3,072	2,926	2,754
Loan charge-offs	(654)	(287)	(84)
Recoveries		35	10
Net loan recoveries (charge-offs)	(654)	(252)	(74)
Provision charged to operations	284	398	246
Balance at end of period	2,702	3,072	2,926
Residential real estate
Analysis of changes in the allowance for loan losses
Balance at beginning of period	163	153	229
Loan charge-offs	(14)	(35)	(45)
Recoveries	5	2	37
Net loan recoveries (charge-offs)	(9)	(33)	(8)
Provision charged to operations	(37)	43	(68)
Balance at end of period	117	163	153
Consumer | Home equity
Analysis of changes in the allowance for loan losses
Balance at beginning of period	150	52	60
Loan charge-offs	(26)	(144)
Recoveries	10	23	17
Net loan recoveries (charge-offs)	(16)	(121)	17
Provision charged to operations	(64)	219	(25)
Balance at end of period	70	150	52
Consumer | Other
Analysis of changes in the allowance for loan losses
Balance at beginning of period	89	86	95
Loan charge-offs	(146)	(148)	(124)
Recoveries	47	61	62
Net loan recoveries (charge-offs)	(99)	(87)	(62)
Provision charged to operations	108	90	53
Balance at end of period	$ 98	$ 89	$ 86

Loans and Allowance for Loan 58

Loans and Allowance for Loan Losses (Details 4) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Ending allowance balance attributable to loans:
Individually evaluated for impairment	$ 625	$ 178
Collectively evaluated for impairment	3,953	4,690
Total ending allowance balance	4,578	4,868	$ 5,194	$ 5,202
Loan Portfolio:
Individually evaluated for impairment	10,245	6,966
Collectively evaluated for impairment	477,245	412,802
Total ending loan balance	487,490	419,768
Commercial
Ending allowance balance attributable to loans:
Individually evaluated for impairment	625
Collectively evaluated for impairment	966	1,394
Total ending allowance balance	1,591	1,394	1,977	2,064
Loan Portfolio:
Individually evaluated for impairment	5,581	106
Collectively evaluated for impairment	107,760	96,175
Total ending loan balance	113,341	96,281
Commercial real estate
Ending allowance balance attributable to loans:
Individually evaluated for impairment		178
Collectively evaluated for impairment	2,702	2,894
Total ending allowance balance	2,702	3,072	2,926	2,754
Loan Portfolio:
Individually evaluated for impairment	4,664	6,860
Collectively evaluated for impairment	278,471	231,832
Total ending loan balance	283,135	238,692
Residential real estate
Ending allowance balance attributable to loans:
Collectively evaluated for impairment	117	163
Total ending allowance balance	117	163	153	229
Loan Portfolio:
Collectively evaluated for impairment	62,071	57,008
Total ending loan balance	62,071	57,008
Consumer | Home equity
Ending allowance balance attributable to loans:
Collectively evaluated for impairment	70	150
Total ending allowance balance	70	150	52	60
Loan Portfolio:
Collectively evaluated for impairment	26,018	25,061
Total ending loan balance	26,018	25,061
Consumer | Other
Ending allowance balance attributable to loans:
Collectively evaluated for impairment	98	89
Total ending allowance balance	98	89	$ 86	$ 95
Loan Portfolio:
Collectively evaluated for impairment	2,925	2,726
Total ending loan balance	$ 2,925	$ 2,726

Loans and Allowance for Loan 59

Loans and Allowance for Loan Losses (Details 5) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Summary of credit quality indicators by internally assigned grade
Total loans	$ 487,490	$ 419,768
Commercial
Summary of credit quality indicators by internally assigned grade
Total loans	113,341	96,281
Commercial | Pass
Summary of credit quality indicators by internally assigned grade
Total loans	100,436	80,644
Commercial | Special Mention
Summary of credit quality indicators by internally assigned grade
Total loans	4,836	12,836
Commercial | Substandard
Summary of credit quality indicators by internally assigned grade
Total loans	8,069	2,801
Commercial real estate
Summary of credit quality indicators by internally assigned grade
Total loans	283,135	238,692
Commercial real estate | Pass
Summary of credit quality indicators by internally assigned grade
Total loans	252,960	208,337
Commercial real estate | Special Mention
Summary of credit quality indicators by internally assigned grade
Total loans	24,307	22,633
Commercial real estate | Substandard
Summary of credit quality indicators by internally assigned grade
Total loans	$ 5,868	$ 7,722

Loans and Allowance for Loan 60

Loans and Allowance for Loan Losses (Details 6) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Summary of consumer credit exposure
Total loans	$ 487,490	$ 419,768
Residential real estate
Summary of consumer credit exposure
Total loans	62,071	57,008
Consumer | Home equity
Summary of consumer credit exposure
Total loans	26,018	25,061
Consumer | Other
Summary of consumer credit exposure
Total loans	2,925	2,726
Performing | Residential real estate
Summary of consumer credit exposure
Total loans	61,824	55,743
Performing | Consumer | Home equity
Summary of consumer credit exposure
Total loans	25,889	25,006
Performing | Consumer | Other
Summary of consumer credit exposure
Total loans	2,925	2,726
Nonperforming | Residential real estate
Summary of consumer credit exposure
Total loans	247	1,265
Nonperforming | Consumer | Home equity
Summary of consumer credit exposure
Total loans	$ 129	$ 55

Loans and Allowance for Loan 61

Loans and Allowance for Loan Losses (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)Loan	Dec. 31, 2016USD ($)Loan	Dec. 31, 2015USD ($)
Receivables [Abstract]
Period after which loans considered nonperforming	90 days
Loans in process of foreclosure	$ 378
Gross income on nonaccrual loans	57	$ 160	$ 293
Actual interest on nonaccrual loans	$ 16	$ 41	$ 26
Number of loans modified as TDRs | Loan	0	0
Number of loans approved as TDRs, subsequently defaulted | Loan		0

Loans and Allowance for Loan 62

Loans and Allowance for Loan Losses (Details 7) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Summary of classes of loans on non-accrual status
Total	$ 882	$ 2,778
Commercial real estate
Summary of classes of loans on non-accrual status
Total	506	1,458
Residential real estate
Summary of classes of loans on non-accrual status
Total	247	1,265
Consumer | Home equity
Summary of classes of loans on non-accrual status
Total	$ 129	$ 55

Loans and Allowance for Loan 63

Loans and Allowance for Loan Losses (Details 8) $ in Thousands	12 Months Ended
	Dec. 31, 2017Loan	Dec. 31, 2016Loan	Dec. 31, 2015USD ($)Contract
Information related to loans modified in a TDR
Number of contracts | Loan	0	0
Commercial real estate
Information related to loans modified in a TDR
Number of contracts | Contract			2
Pre-modification recorded investment			$ 3,154
Post-modification recorded investment			$ 3,154

Loans and Allowance for Loan 64

Loans and Allowance for Loan Losses (Details 9) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Aging analysis of the recorded investment of past due loans
Total Past Due	$ 1,185	$ 4,361
Current	486,305	415,407
Total ending loan balance	487,490	419,768
Recorded Investment >90 Days and Accruing	0	0
30-59 Days Past Due
Aging analysis of the recorded investment of past due loans
Total Past Due	428	1,637
60-89 Days Past Due
Aging analysis of the recorded investment of past due loans
Total Past Due	123	138
90 Days Or Greater
Aging analysis of the recorded investment of past due loans
Total Past Due	634	2,586
Commercial
Aging analysis of the recorded investment of past due loans
Total Past Due		377
Current	113,341	95,904
Total ending loan balance	113,341	96,281
Recorded Investment >90 Days and Accruing	0	0
Commercial | 30-59 Days Past Due
Aging analysis of the recorded investment of past due loans
Total Past Due		377
Commercial real estate
Aging analysis of the recorded investment of past due loans
Total Past Due	575	2,619
Current	282,560	236,073
Total ending loan balance	283,135	238,692
Recorded Investment >90 Days and Accruing	0	0
Commercial real estate | 30-59 Days Past Due
Aging analysis of the recorded investment of past due loans
Total Past Due	173	1,189
Commercial real estate | 60-89 Days Past Due
Aging analysis of the recorded investment of past due loans
Total Past Due	12	83
Commercial real estate | 90 Days Or Greater
Aging analysis of the recorded investment of past due loans
Total Past Due	390	1,347
Residential real estate
Aging analysis of the recorded investment of past due loans
Total Past Due	485	1,251
Current	61,586	55,757
Total ending loan balance	62,071	57,008
Recorded Investment >90 Days and Accruing	0	0
Residential real estate | 30-59 Days Past Due
Aging analysis of the recorded investment of past due loans
Total Past Due	240	58
Residential real estate | 60-89 Days Past Due
Aging analysis of the recorded investment of past due loans
Total Past Due	29	9
Residential real estate | 90 Days Or Greater
Aging analysis of the recorded investment of past due loans
Total Past Due	216	1,184
Consumer | Home equity
Aging analysis of the recorded investment of past due loans
Total Past Due	110	101
Current	25,908	24,960
Total ending loan balance	26,018	25,061
Recorded Investment >90 Days and Accruing	0	0
Consumer | Home equity | 60-89 Days Past Due
Aging analysis of the recorded investment of past due loans
Total Past Due	82	46
Consumer | Home equity | 90 Days Or Greater
Aging analysis of the recorded investment of past due loans
Total Past Due	28	55
Consumer | Other
Aging analysis of the recorded investment of past due loans
Total Past Due	15	13
Current	2,910	2,713
Total ending loan balance	2,925	2,726
Recorded Investment >90 Days and Accruing	0	0
Consumer | Other | 30-59 Days Past Due
Aging analysis of the recorded investment of past due loans
Total Past Due	$ 15	$ 13

Loans and Allowance for Loan 65

Loans and Allowance for Loan Losses (Details 10) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Commercial
Loans evaluated for impairment by loan segment
Recorded Investment, With no related allowance recorded	$ 65	$ 106
Recorded Investment, With related allowance recorded	5,516
Recorded Investment, Total	5,581	106
Unpaid Principal Balance, with no related allowance	65	106
Unpaid Principal Balance, with related allowance	5,516
Unpaid Principal Balance, Total	5,581	106
Related Allowance, with related allowance	625
Related Allowance, Total	625
Average Recorded Investment, with no related allowance recorded	85	146	$ 322
Average Recorded Investment, with related allowance recorded	460	279	1,341
Average Recorded Investment, Total	545	425	1,663
Interest Income Recognized, with no related allowance	6	8	13
Interest Income Recognized, with related allowance	0	0	0
Interest Income Recognized, Total	6	8	13
Commercial real estate
Loans evaluated for impairment by loan segment
Recorded Investment, With no related allowance recorded	4,664	5,681
Recorded Investment, With related allowance recorded		1,179
Recorded Investment, Total	4,664	6,860
Unpaid Principal Balance, with no related allowance	4,742	5,789
Unpaid Principal Balance, with related allowance		1,179
Unpaid Principal Balance, Total	4,742	6,968
Related Allowance, with related allowance		178
Related Allowance, Total		178
Average Recorded Investment, with no related allowance recorded	5,062	6,072	4,842
Average Recorded Investment, with related allowance recorded	527	1,209	1,160
Average Recorded Investment, Total	5,589	7,281	6,002
Interest Income Recognized, with no related allowance	291	335	181
Interest Income Recognized, with related allowance	0	85	84
Interest Income Recognized, Total	$ 291	$ 420	$ 265

Premises and Equipment (Details

Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Summary of premises and equipment
Total premises and equipment	$ 22,635	$ 22,126
Less accumulated depreciation	13,597	12,994
Net book value	9,038	9,132
Land
Summary of premises and equipment
Total premises and equipment	2,746	2,746
Premises
Summary of premises and equipment
Total premises and equipment	9,914	9,846
Equipment
Summary of premises and equipment
Total premises and equipment	9,711	9,312
Leasehold Improvements
Summary of premises and equipment
Total premises and equipment	$ 264	$ 222

Premises and Equipment (Detai67

Premises and Equipment (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Premises and Equipment (Textual) [Abstract]
Depreciation expense	$ 880	$ 835	$ 792

Deposits (Details)

Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Summary of interest-bearing deposits:
Demand	$ 50,410	$ 45,158
Money market	171,783	133,783
Savings	113,078	112,817
Time:
In denominations $250,000 or under	108,761	113,368
In denominations of over $250,000	18,528	17,499
Interest bearing deposits total	$ 462,560	$ 422,625

Deposits (Details 1)

Deposits (Details 1) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Stated maturities of time deposits
2,018	$ 80,665
2,019	9,557
2,020	9,699
2,021	13,301
2,022	6,353
2023 and beyond	7,714
Total Stated maturities of time deposits	$ 127,289	$ 130,867

Deposits (Details 2)

Deposits (Details 2) $ in Thousands	Dec. 31, 2017USD ($)
Summary of time deposits of $100,000 or more by remaining maturities
Three months or less	$ 26,574
Three to six months	12,660
Six to twelve months	4,870
One through five years	18,114
Over five years	4,018
Total	66,236
Certificates of Deposit
Summary of time deposits of $100,000 or more by remaining maturities
Three months or less	11,375
Three to six months	4,698
Six to twelve months	1,678
One through five years	13,527
Over five years	3,249
Total	34,527
Other Time Deposits
Summary of time deposits of $100,000 or more by remaining maturities
Three months or less	15,199
Three to six months	7,962
Six to twelve months	3,192
One through five years	4,587
Over five years	769
Total	$ 31,709

Federal Home Loan Bank (FHLB)71

Federal Home Loan Bank (FHLB) Advances and Other Short-Term Borrowings (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Other short-term borrowings:
Securities sold under repurchase agreements, Weighted Average Interest Rate	1.38%	0.59%	0.37%
Long-term Debt
Fixed-rate payable and convertible fixed-rate FHLB advances, with monthly interest payments:
Due in 2017		$ 15,500
Due in 2018	$ 4,000	2,000
Due in 2019	6,000
Due in 2020	4,000
Total FHLB advances - long-term	$ 14,000	17,500
Weighted Average Interest Rate Due in 2017	1.22%
Weighted Average Interest Rate Due in 2018	1.60%
Weighted Average Interest Rate Due in 2020	1.70%
Weighted Average Interest Rate, Total FHLB advances - long term	1.51%
Short-term Debt
FHLB advances - short-term:
Short-term	$ 12,000	6,000
Cash management	20,000	17,000
Total FHLB advances - short-term	$ 32,000	23,000
Weighted Average Interest Rate Short term	1.29%
Weighted Average Interest Rate Cash management	1.44%
Total FHLB advances - short term, Weighted Average Interest Rate	1.38%
Total FHLB advances, Weighted Average Interest Rate	1.42%
Total FHLB advances	$ 46,000	40,500
Other short-term borrowings:
Securities sold under repurchase agreements	2,678	2,702
Total FHLB advances and other short-term borrowings	$ 48,678	$ 43,202
Securities sold under repurchase agreements, Weighted Average Interest Rate	0.34%
Total FHLB advances and other short-term borrowings, Weighted Average Interest Rate	1.36%

Federal Home Loan Bank (FHLB)72

Federal Home Loan Bank (FHLB) Advances and Other Short-Term Borrowings (Details 1) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Jan. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Summary of FHLB and Other Short Term Borrowings
Average balance during the year		$ 16,917	$ 13,550	$ 14,674
Average interest rate during the year		1.03%	0.54%	0.27%
Maximum month-end balance during the year		$ 32,000	$ 23,000	$ 23,500
Weighted average interest rate at year end		1.38%	0.59%	0.37%
Federal Home Loan Bank Advances
Summary of FHLB and Other Short Term Borrowings
Average balance during the year		$ 2,018	$ 2,249	$ 4,082
Average interest rate during the year	4.01%	0.33%	0.31%	0.10%
Maximum month-end balance during the year		$ 2,678	$ 3,608	$ 7,541
Weighted average interest rate at year end		0.34%	0.33%	0.11%

Federal Home Loan Bank (FHLB)73

Federal Home Loan Bank (FHLB) Advances and Other Short-Term Borrowings (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Federal Home Loan Bank Advances and Other Short-Term Borrowings (Additional Textual) [Abstract]
Carrying value of owned FHLB Stock	$ 2.4	$ 2.4
Maximum borrowing capacity from FHLB	57	56.3
FHLB fixed rate advances	0	11.5
Securities allocated under repurchase agreement, value	3.4	2.9
Qualified mortgage loan portfolio	64.7	61.2
Blanket lien against mortgage backed securities	19.8	16.1
Blanket lien against U.S. Government guaranteed small business administration pools	$ 9.7	$ 11.9

Federal Home Loan Bank (FHLB)74

Federal Home Loan Bank (FHLB) Advances and Other Short-Term Borrowings (Details 2) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Short Term Debt [Line Items]
Short-term borrowings	$ 2,678	$ 2,702
Repurchase Agreements
Short Term Debt [Line Items]
Total collateral carrying value	3,414	2,898
Repurchase Agreements | U.S. Government-sponsored mortgage-backed securities
Short Term Debt [Line Items]
Total collateral carrying value	$ 3,414	$ 2,898

Subordinated Debt (Details Text

Subordinated Debt (Details Textual) - USD ($)	1 Months Ended	12 Months Ended
	Jul. 31, 2007	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Floating rate trust preferred securities issued	$ 5,000,000
Maturity date of floating rate trust preferred securities	2037-12
Investment in common securities issued by trust	$ 155,000
Subordinated Debt
Debt Instrument [Line Items]
Interest rate description		3-month LIBOR rate plus 1.45%
LIBOR Rate Points	1.45%
Interest rate		3.04%	2.41%

Commitments and Contingencies76

Commitments and Contingencies (Details Textual)	12 Months Ended
	Dec. 31, 2017USD ($)Security	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Commitments and Contingencies (Textual) [Abstract]
Operating leases extending	2,021
Rental and lease expense	$ 230,000	$ 183,000	$ 168,000
Aggregate cash reserves for federal regulatory requirements	$ 5,000,000
Percentage of unsecured loans	0.30%	0.36%
Third party interest rate swap
Commitments and Contingencies (Textual) [Abstract]
Security pledged for collateral	$ 1,400,000	$ 1,700,000
Third party interest rate swap | U.S. Government-sponsored mortgage-backed securities
Commitments and Contingencies (Textual) [Abstract]
Number of security owned and pledged as collateral | Security	1
Minimum
Commitments and Contingencies (Textual) [Abstract]
Operating leases renewal period	5 years
Maximum
Commitments and Contingencies (Textual) [Abstract]
Operating leases renewal period	10 years

Commitments and Contingencies77

Commitments and Contingencies (Details) $ in Thousands	Dec. 31, 2017USD ($)
Summary of remaining future minimum lease payments
December 31, 2018	$ 175
December 31, 2019	124
December 31, 2020	116
December 31, 2021	62
Total	$ 477

Commitments and Contingencies78

Commitments and Contingencies (Details 1) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Commitments to extend credit:
Fixed rate	$ 32,749	$ 18,709
Variable rate	60,508	57,176
Standby letters of credit	$ 3,600	$ 412

Commitments and Contingencies79

Commitments and Contingencies (Details 2) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Summary of overdraft protection
Overdraft protection available on depositors' accounts	$ 9,637	$ 9,655
Balance of overdrafts included in loans	103	80
Average daily balance of overdrafts	$ 115	$ 105
Average daily balance of overdrafts as a percentage of available	1.19%	1.09%

Commitments and Contingencies80

Commitments and Contingencies (Details 3) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Customer interest rate swap, Maturing in 2020
Derivative [Line Items]
Maturity	2,020
Notional Amount	$ 2,504,000	$ 2,594,000
Interest Rate Paid	1 Mo. Libor + Margin
Interest Rate Received	Fixed
Fair Value	$ (16,000)	15,000
Customer interest rate swap, Maturing in 2025
Derivative [Line Items]
Maturity	2,025
Notional Amount	$ 5,288,000	5,630,000
Interest Rate Paid	1 Mo. Libor + Margin
Interest Rate Received	Fixed
Fair Value	$ 36,000	101,000
Customer interest rate swap, Maturing in 2026
Derivative [Line Items]
Maturity	2,026
Notional Amount	$ 2,064,000	2,178,000
Interest Rate Paid	1 Mo. Libor + Margin
Interest Rate Received	Fixed
Fair Value	$ (44,000)	(29,000)
Customer interest rate swap, Maturing in 2027
Derivative [Line Items]
Maturity	2,027
Notional Amount	$ 14,197,000	6,150,000
Interest Rate Paid	1 Mo. Libor + Margin
Interest Rate Received	Fixed
Fair Value	$ 209,000	210,000
Customer interest rate swap
Derivative [Line Items]
Notional Amount	24,053,000	16,552,000
Fair Value	$ 185,000	297,000
Third party interest rate swap, Maturing in 2020
Derivative [Line Items]
Maturity	2,020
Notional Amount	$ 2,504,000	2,594,000
Interest Rate Paid	Fixed
Interest Rate Received	1 Mo. Libor + Margin
Fair Value	$ 16,000	(15,000)
Third party interest rate swap, Maturing in 2025
Derivative [Line Items]
Maturity	2,025
Notional Amount	$ 5,288,000	5,630,000
Interest Rate Paid	Fixed
Interest Rate Received	1 Mo. Libor + Margin
Fair Value	$ (36,000)	(101,000)
Third party interest rate swap, Maturing in 2026
Derivative [Line Items]
Maturity	2,026
Notional Amount	$ 2,064,000	2,178,000
Interest Rate Paid	Fixed
Interest Rate Received	1 Mo. Libor + Margin
Fair Value	$ 44,000	29,000
Third party interest rate swap, Maturing in 2027
Derivative [Line Items]
Maturity	2,027
Notional Amount	$ 14,197,000	6,150,000
Interest Rate Paid	Fixed
Interest Rate Received	1 Mo. Libor + Margin
Fair Value	$ (209,000)	(210,000)
Third party interest rate swap
Derivative [Line Items]
Notional Amount	24,053,000	16,552,000
Fair Value	$ (185,000)	$ (297,000)

Commitments and Contingencies81

Commitments and Contingencies (Details 4) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Derivatives Fair Value [Line Items]
Assets, Fair Value	$ 185	$ 297
Liabilities, Fair Value	185	297
Other assets
Derivatives Fair Value [Line Items]
Assets, Fair Value	185	297
Other liabilities
Derivatives Fair Value [Line Items]
Liabilities, Fair Value	$ 185	$ 297

Benefit Plans (Details Textual)

Benefit Plans (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Benefit Plans (Textual) [Abstract]
Accumulated liability for retirement benefits plan	$ 3,182,000	$ 2,957,000	$ 2,760,000	$ 2,549,000
Benefit Plans (Additional Textual) [Abstract]
Maximum percentage of employer match for employee voluntary contributions	5.00%
Maximum allowable amount of voluntary contributions by participants for 2017	$ 18,000
Additional catch-up deferral for plan participants over the age of 50	6,000
Total expense under the contribution retirement plan	361,000	$ 349,000	$ 307,000
Officer's Plan
Benefit Plans (Textual) [Abstract]
Accumulated liability for retirement benefits plan	2,700,000
Director's Plan
Benefit Plans (Textual) [Abstract]
Accumulated liability for retirement benefits plan	$ 500,000
Term of age
Benefit Plans (Textual) [Abstract]
Minimum Age Requirement for Additional Allowable Contributions	50 years
Supplemental Employee Retirement Plans, Defined Benefit
Benefit Plans (Textual) [Abstract]
Accumulated liability for retirement benefits plan	$ 3,200,000
Plan assets	$ 0
Supplemental Employee Retirement Plans, Defined Benefit | Directors and Officers
Benefit Plans (Textual) [Abstract]
Post-retirement benefits plan duration	15 years
Director Retirement Agreements annual benefit	$ 10,000
Director retirement benefits plan duration	10 years
Supplemental Employee Retirement Plans, Defined Benefit | Executive Officer
Benefit Plans (Textual) [Abstract]
Expected benefit expense as specified in the agreements for the entire year 2018	$ 426,000
Benefits expected to be paid in 2018 approximately	$ 162,000

Benefit Plans (Details)

Benefit Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Reconciles the accumulated liability for the benefit obligation
Beginning balance	$ 2,957	$ 2,760	$ 2,549
Benefit expense	387	359	369
Benefit payments	(162)	(162)	(158)
Ending balance	$ 3,182	$ 2,957	$ 2,760

Benefit Plans (Details 1)

Benefit Plans (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Beginning balance	$ 2,957	$ 2,760	$ 2,549
Expense recorded	387	359	369
Other comprehensive (income) loss recorded	(14)	(39)	108
Ending balance	3,182	2,957	2,760
Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Beginning balance	840	856	616
Expense recorded	50	23	132
Other comprehensive (income) loss recorded	(14)	(39)	108
Ending balance	$ 876	$ 840	$ 856

Federal Income Taxes (Details T

Federal Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Federal Income Taxes (Textual) [Abstract]
Corporate tax rate		34.00%
Change in corporate tax rate		$ 1,246,000
Valuation allowance				$ 94,000
AMT credit carryforward		904,000	$ 904,000
Valuation Allowance Related to Corporations Ability to Carryforward Taxes		0
Income tax expense on investment securities gains		3,000	$ 142,000	$ 22,000
Expected increase in unrecognized tax benefits		0
Interest or penalties incurred		0
Liability for uncertain tax position		$ 0
Unrecognized tax benefits		0
Scenario, Forecast
Federal Income Taxes (Textual) [Abstract]
Corporate tax rate	21.00%

Federal Income Taxes (Details)

Federal Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Composition of income tax expense (benefit)
Current	$ 1,199	$ 1,256	$ 916
Deferred	(28)	(129)	303
Change in corporate tax rate	1,246
Federal income tax expense (benefit)	$ 2,417	$ 1,127	$ 1,219

Federal Income Taxes (Details 1

Federal Income Taxes (Details 1) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Gross deferred tax assets:
Allowance for loan and other real estate losses	$ 961,000	$ 1,655,000
Deferred loan origination cost - net	234,000	303,000
Impairment loss on securities	29,000	48,000
Deferred compensation	668,000	1,006,000
AMT credit carryforward	904,000	904,000
Unrealized loss on available-for-sale securities	475,000	1,499,000
Other items	333,000	540,000
Total gross deferred tax assets	3,604,000	5,955,000
Gross deferred tax liabilities:
Premises and equipment	(362,000)	(566,000)
Other items	(325,000)	(524,000)
Total net deferred tax liabilities	(687,000)	(1,090,000)
Net deferred tax asset	$ 2,917,000	$ 4,865,000

Federal Income Taxes (Details 2

Federal Income Taxes (Details 2)	12 Months Ended
	Dec. 31, 2016USD ($)
Income Tax Disclosure [Abstract]
Valuation allowance at beginning of year	$ 94,000
Utilization of capital loss carryover	$ (94,000)

Federal Income Taxes (Details 3

Federal Income Taxes (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Reconciliation between (tax -benefit) expense
Statutory tax expense	$ 2,301	$ 2,039	$ 1,903
Tax effect of non-taxable interest income	(663)	(628)	(600)
Tax effect of earnings on bank-owned life insurance-net	(414)	(112)	(115)
Tax effect of deferred tax valuation reversal		(94)
Change in corporate tax rate	1,246
Tax effect of low income housing credit	(149)	(142)	(54)
Tax effect of non-deductible expenses	96	64	85
Federal income tax expense (benefit)	$ 2,417	$ 1,127	$ 1,219

Fair Value (Details Textual)

Fair Value (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)Security	Dec. 31, 2016Security
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Number of debt securities with other-than-temporary impairment | Security	1	1
Maturity period of short-term borrowings	one year or less
Period of swap rate	25 years
Minimum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value input discount rate	9.10%
Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value input discount rate	14.74%
PreTSL XXIII
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value input discount rate	14.74%
Securities maturity date	2036-12
Securities Nonperforming Collateral Amount	$ 209
Securities Performing Collateral Amount	861
Estimated cash flows	42.6
Current principal value	$ 26.1
Trapeza IX
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value input discount rate	9.10%
Securities maturity date	2038-01
Securities Nonperforming Collateral Amount	$ 6.8
Securities Performing Collateral Amount	200
Estimated cash flows	41.6
Current principal value	$ 23.8
Trust preferred securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Number of debt securities with other-than-temporary impairment | Security	1	1
Period frequency of projected prepayment rate	1 year
Projected Prepayments, minimum fixed rate coupons	8.00%
Projected Prepayments, percentage of fair value input for banks	1.00%
Projected prepayment, percentage of fair value for collateral by REITs	0.00%
Projected prepayment, percentage of fair value for collateral for insurance companies	2.00%
Annually projected defaults percentage for healthy banks	2.00%
Period frequency of projected default rate	2 years
Projected defaults rate for healthy banks	0.36%
Projected Recoveries, percentage for insurance companies, REITs and insolvent banks	0.00%
Projected recovery, percentage for projected bank deferrals	10.00%
Projected Bank Deferrals lagged	2 years
Trust preferred securities | Minimum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value input discount rate	9.10%	9.69%
Trust preferred securities | Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value input discount rate	14.74%	15.11%

Fair Value (Details)

Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
ASSETS
Total debt securities, Fair Value	$ 162,422	$ 179,219
Regulatory stock	2,581	2,581
Loans held for sale	2,780	4,554
Interest rate derivatives	185	297
LIABILITIES
Liabilities, Fair Value	185	297
Trust preferred securities
ASSETS
Total debt securities, Fair Value	895	825
Level 1
ASSETS
Total debt securities, Fair Value	2,581	2,581
Regulatory stock	2,581	2,581
Loans held for sale	2,780	4,554
Level 2
ASSETS
Total debt securities, Fair Value	158,946	175,813
Interest rate derivatives	185	297
LIABILITIES
Liabilities, Fair Value	185	297
Level 3
ASSETS
Total debt securities, Fair Value	895	825
Level 3 | Trust preferred securities
ASSETS
Total debt securities, Fair Value	895	825
U.S. Government agencies and corporations
ASSETS
Total debt securities, Fair Value	3,205	7,988
U.S. Government agencies and corporations | Level 2
ASSETS
Total debt securities, Fair Value	3,205	7,988
Obligations of states and political subdivisions
ASSETS
Total debt securities, Fair Value	72,116	66,770
Obligations of states and political subdivisions | Level 2
ASSETS
Total debt securities, Fair Value	72,116	66,770
U.S. Government-sponsored mortgage-backed securities
ASSETS
Total debt securities, Fair Value	67,668	79,767
U.S. Government-sponsored mortgage-backed securities | Level 2
ASSETS
Total debt securities, Fair Value	67,668	79,767
U.S. Government-sponsored collateralized mortgage obligations
ASSETS
Total debt securities, Fair Value	6,302	9,349
U.S. Government-sponsored collateralized mortgage obligations | Level 2
ASSETS
Total debt securities, Fair Value	6,302	9,349
U.S. Government-guaranteed small business administration pools
ASSETS
Total debt securities, Fair Value	9,655	11,939
U.S. Government-guaranteed small business administration pools | Level 2
ASSETS
Total debt securities, Fair Value	$ 9,655	$ 11,939

Fair Value (Details 1)

Fair Value (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Changes in the Level 3 fair value category
Beginning balance		$ 778	$ 779
Net realized/unrealized gains/(losses) included in:
Other comprehensive income			21
Purchases, issuance, and settlements			(22)
Ending balance			778
Trust preferred securities
Changes in the Level 3 fair value category
Beginning balance	$ 825	778
Net realized/unrealized gains/(losses) included in:
Other comprehensive income	72	67
Purchases, issuance, and settlements	(2)	(20)
Ending balance	$ 895	$ 825	$ 778

Fair Value (Details 2)

Fair Value (Details 2) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)Security	Dec. 31, 2016USD ($)Security	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Breakdown of trust preferred securities
Number considered OTTI | Security	1	1
Trust preferred securities
Breakdown of trust preferred securities
Total number of trust preferred securities | Security	2	2
Par value, trust preferred securities	$ 1,939	$ 1,970
Number not considered OTTI | Security	1	1
Par value, trust preferred securities not considered OTTI	$ 903	$ 940
Number considered OTTI | Security	1	1
Par value, trust preferred securities considered OTTI	$ 1,036	$ 1,030
Life-to-date impairment recognized in earnings	140	140	$ 140	$ 140
Life-to-date impairment recognized in other comprehensive income	723	795
Total life-to-date impairment	$ 863	$ 935

Fair Value (Details 3)

Fair Value (Details 3) - Trapeza IX B-1 - Fitch C C Rating - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016
Moodys Caa2 Rating
Losses recognized in earnings for trust preferred securities held
Beginning balance, Amount of OTTI related to credit loss				$ 140
Additional credit losses on debt securities for which other-than- temporary impairment was previously recognized	$ 0	$ 0	$ 0	0
Ending balance, Amount of OTTI related to credit loss	$ 140				$ 140
Moodys Ca Rating
Losses recognized in earnings for trust preferred securities held
Beginning balance, Amount of OTTI related to credit loss				$ 140				$ 140
Additional credit losses on debt securities for which other-than- temporary impairment was previously recognized					0	$ 0	$ 0	$ 0
Ending balance, Amount of OTTI related to credit loss					$ 140

Fair Value (Details 4)

Fair Value (Details 4) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)Issurers_Currently_Performing	Dec. 31, 2016USD ($)Issurers_Currently_Performing
Additional information related to the Company's trust preferred securities
Available-for-sale Securities, Amortized Cost	$ 164,683	$ 183,625
Total debt securities, Fair Value	$ 162,422	179,219
PreTSL XXIII | Moodys B2 Rating | Fitch C C C Rating
Additional information related to the Company's trust preferred securities
Class	C2
Available-for-sale Securities, Amortized Cost	$ 758	760
Total debt securities, Fair Value	336	310
Unrealized Gain/(Loss)	$ (422)	$ (450)
Number of Issuers Currently Performing | Issurers_Currently_Performing	90	90
Deferrals and Defaults as a % of Current Collateral	20.90%	22.50%
Excess Subordination as a % of Current Performing Collateral	7.12%	5.33%
Trapeza IX | Moodys Caa2 Rating | Fitch C C Rating
Additional information related to the Company's trust preferred securities
Class	B1
Available-for-sale Securities, Amortized Cost	$ 860
Total debt securities, Fair Value	559
Unrealized Gain/(Loss)	$ (301)
Number of Issuers Currently Performing | Issurers_Currently_Performing	30
Deferrals and Defaults as a % of Current Collateral	14.00%
Trapeza IX | Moodys Ca Rating | Fitch C C Rating
Additional information related to the Company's trust preferred securities
Class		B1
Available-for-sale Securities, Amortized Cost		$ 860
Total debt securities, Fair Value		515
Unrealized Gain/(Loss)		$ (345)
Number of Issuers Currently Performing | Issurers_Currently_Performing		32
Deferrals and Defaults as a % of Current Collateral		13.30%
Trust preferred securities
Additional information related to the Company's trust preferred securities
Available-for-sale Securities, Amortized Cost	$ 1,618	$ 1,620
Total debt securities, Fair Value	895	825
Unrealized Gain/(Loss)	$ (723)	$ (795)

Fair Value (Details 5)

Fair Value (Details 5) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Assets measured on a nonrecurring basis:
Impaired loans	$ 9,620	$ 6,788
Level 3
Assets measured on a nonrecurring basis:
Impaired loans	$ 9,620	$ 6,788

Fair Value (Details 6)

Fair Value (Details 6) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents, carrying value	$ 19,125	$ 15,351	$ 18,496	$ 10,569
Investment securities available-for-sale, carrying value	162,422	179,219
Loans held for sale	2,780	4,554
Loans, net of allowance for loan losses, carrying value	482,912	414,900
Bank-owned life insurance	17,650	17,376
Accrued interest receivable, carrying value	2,193	2,041
Interest rate derivatives, carrying value	185	297
LIABILITIES
Demand, savings and money market deposits, carrying value	458,562	408,983
Time deposits, carrying value	127,289	130,867
Short-term borrowings	2,678	2,702
Federal Home Loan Bank advances - short term	32,000	23,000
Federal Home Loan Bank advances - long term	14,000	17,500
Subordinated debt, carrying value	5,155	5,155
Accrued interest payable, carrying value	325	288
Interest rate derivatives, carrying value	185	297
ASSETS:
Cash and cash equivalents, fair value	19,125	15,351
Available-for-sale securities, Fair Value	162,422	179,219
Loans held for sale, fair value	2,780	4,554
Loans, net of allowance for loan losses, fair value	486,230	418,532
Bank-owned life insurance, fair value	17,650	17,376
Accrued interest receivable, fair value	2,193	2,041
Interest rate derivatives, fair value	185	297
LIABILITIES:
Demand, savings and money market deposits, fair value	458,562	408,983
Time deposits, fair value	128,624	133,108
Short-term borrowings, fair value	2,678	2,702
Federal Home Loan Bank advances - short term, fair value	31,982	22,998
Federal Home Loan Bank advances - long term, fair value	13,880	17,580
Subordinated debt, fair value	4,785	4,363
Accrued interest payable, fair value	325	288
Interest rate derivatives, fair value	185	297
Time deposits, fair value	128,624	133,108
Level 1
ASSETS
Loans held for sale	2,780	4,554
ASSETS:
Cash and cash equivalents, fair value	19,125	15,351
Available-for-sale securities, Fair Value	2,581	2,581
Loans held for sale, fair value	2,780	4,554
Bank-owned life insurance, fair value	17,650	17,376
Accrued interest receivable, fair value	2,193	2,041
LIABILITIES:
Demand, savings and money market deposits, fair value	458,562	408,983
Short-term borrowings, fair value	2,678	2,702
Federal Home Loan Bank advances - short term, fair value		17,000
Accrued interest payable, fair value	325	288
Level 2
ASSETS:
Available-for-sale securities, Fair Value	158,946	175,813
Interest rate derivatives, fair value	185	297
LIABILITIES:
Interest rate derivatives, fair value	185	297
Level 3
ASSETS:
Available-for-sale securities, Fair Value	895	825
Loans, net of allowance for loan losses, fair value	486,230	418,532
LIABILITIES:
Time deposits, fair value	128,624	133,108
Federal Home Loan Bank advances - short term, fair value	31,982	5,998
Federal Home Loan Bank advances - long term, fair value	13,880	17,580
Subordinated debt, fair value	4,785	4,363
Time deposits, fair value	$ 128,624	$ 133,108

Fair Value (Details 7)

Fair Value (Details 7) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Total debt securities, Fair Value	$ 162,422	$ 179,219
Minimum
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Fair value input discount rate	9.10%
Maximum
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Fair value input discount rate	14.74%
Trust preferred securities
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Total debt securities, Fair Value	$ 895	$ 825
Trust preferred securities | Minimum
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Fair value input discount rate	9.10%	9.69%
Trust preferred securities | Maximum
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Fair value input discount rate	14.74%	15.11%
Trust preferred securities | Discounted Cash Flow
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Total debt securities, Fair Value	$ 895	$ 825
Impaired Loans
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Appraisal Adjustments		20.00%
Impaired Loans | Minimum
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Fair value input discount rate	4.50%
Liquidation Expenses		8.00%
Impaired Loans | Maximum
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Fair value input discount rate	5.38%
Liquidation Expenses		12.00%
Impaired Loans | Weighted average
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Fair value input discount rate	4.88%
Appraisal Adjustments		20.00%
Liquidation Expenses		10.00%
Impaired Loans | Appraisal Of Collateral
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Total debt securities, Fair Value	$ 4,891	$ 1,001

Accumulated Other Comprehensi99

Accumulated Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Beginning balance		$ 57,670	$ 56,684	$ 55,852
Total other comprehensive income (loss)		1,430	(2,723)	(614)
Ending balance		61,630	57,670	56,684
Accumulated Net Unrealized Investment Gain (Loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Beginning balance	[1]	(2,909)	(147)
Other comprehensive (loss) income before reclassification	[1]	1,420	(2,454)
Reclassification of certain income tax effects from accumulated other comprehensive income	[1]	(294)
Amount reclassified from accumulated other comprehensive loss	[1]	(4)	(308)
Total other comprehensive income (loss)	[1]	1,122	(2,762)
Ending balance	[1]	(1,787)	(2,909)	(147)
Accumulated Defined Benefit Plans Adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Beginning balance	[1]	(52)	(91)
Other comprehensive (loss) income before reclassification	[1]	14	39
Total other comprehensive income (loss)	[1]	14	39
Ending balance	[1]	$ (38)	$ (52)	$ (91)
[1]	All amounts are net of tax. Amounts in parentheses indicate debits.

Accumulated Other Comprehens100

Accumulated Other Comprehensive (Loss) Income (Details 1) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Unrealized gains on available-for-sale securities
Federal income tax expense		$ (2,417)	$ (1,127)	$ (1,219)
NET INCOME		4,350	4,871	$ 4,378
Reclassification out of Accumulated Other Comprehensive Income (Loss) | Accumulated Net Unrealized Investment Gain (Loss)
Unrealized gains on available-for-sale securities
Investment securities available-for-sale gains, net	[1]	7	466
Federal income tax expense	[1]	(3)	(158)
NET INCOME	[1]	$ 4	$ 308
[1]	Amounts in parentheses indicate debits to net income.

Regulatory Matters (Details Tex

Regulatory Matters (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Jul. 31, 2013
Regulatory Matters (Textual) [Abstract]
Minimum Tier I risk-based capital to risk-weighted assets ratio	6.00%	6.00%
Minimum total risk-based capital to risk-weighted assets ratio	13.35%	14.04%
Ratio to risk-weighted assets	14.26%	15.10%
Maximum value for classification as small bank holding company	$ 1,000,000,000
Floating rate trust preferred securities outstanding	$ 5,000,000	$ 5,000,000
CET1
Regulatory Matters (Textual) [Abstract]
Minimum Tier I risk-based capital to risk-weighted assets ratio			4.50%
Minimum Tier I risk-based capital to average assets ratio			2.50%
Minimum total risk-based capital to risk-weighted assets ratio			7.00%
Basel III
Regulatory Matters (Textual) [Abstract]
Minimum Tier I risk-based capital to risk-weighted assets ratio			8.50%
Minimum Tier I risk-based capital to average assets ratio			10.50%
Minimum total risk-based capital to risk-weighted assets ratio			4.00%
Basel III | Minimum
Regulatory Matters (Textual) [Abstract]
Ratio to risk-weighted assets			4.00%
Basel III | Maximum
Regulatory Matters (Textual) [Abstract]
Ratio to risk-weighted assets			6.00%

Regulatory Matters (Details)

Regulatory Matters (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Banking And Thrift [Abstract]
CET1 capital to risk-weighted assets, amount	$ 63,455	$ 60,631
Tier 1 capital to risk-weighted assets, amount	68,455	65,631
Total capital to risk-weighted assets, amount	73,116	70,583
Tier 1 capital to average assets, amount	$ 68,455	$ 65,631
CET1 capital to risk-weighted assets, ratio	12.37%	12.97%
Tier 1 capital to risk-weighted assets, ratio	13.35%	14.04%
Total capital to risk-weighted assets, ratio	14.26%	15.10%
Tier 1 capital to average assets, ratio	10.77%	10.46%
CET1 capital to risk-weighted assets, amount for capital adequacy purposes	$ 23,082	$ 21,033
Tier 1 capital to risk-weighted assets, amount for capital adequacy purposes	30,776	28,044
Total capital to risk-weighted assets, amount for capital adequacy purposes	41,033	37,392
Tier 1 capital to average assets, amount for capital adequacy purposes	$ 25,416	$ 25,086
CET1 capital to risk-weighted assets, ratio for capital adequacy purposes	4.50%	4.50%
Tier 1 capital to risk-weighted assets, ratio for capital adequacy purposes	6.00%	6.00%
Total capital to risk-weighted assets, ratio for capital adequacy purposes	8.00%	8.00%
Tier 1 capital to average assets, ratio for capital adequacy purposes	4.00%	4.00%

Related Party Transactions (Det

Related Party Transactions (Details) - Management $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)
Schedule of analysis of related party loan
Total related-party loans at December 31, 2016	$ 4,283
New related-party loans	3,038
Repayments or other	(3,091)
Total related-party loans at December 31, 2017	$ 4,230

Related Party Transactions (104

Related Party Transactions (Details Textual) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Management
Related Party Transaction [Line Items]
Deposits of executive officers, directors, and their affiliates	$ 2.8	$ 2.9

Condensed Financial Informat105

Condensed Financial Information Parent Company (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
ASSETS
Cash	$ 19,125	$ 15,351	$ 18,496	$ 10,569
Other assets	17,174	14,652
Total assets	711,101	655,184
LIABILITIES
Other liabilities	9,787	9,307
Subordinated debt (Note 7)	5,155	5,155
Total liabilities	649,471	597,514
SHAREHOLDERS’ EQUITY
Common stock	23,641	23,641
Additional paid-in capital	20,928	20,878
Retained earnings	24,403	21,485
Accumulated other comprehensive loss	(1,825)	(2,961)
Treasury stock	(5,517)	(5,373)
Total shareholders’ equity	61,630	57,670	56,684	55,852
Total liabilities and shareholders’ equity	711,101	655,184
Parent Company
ASSETS
Cash	261	320	$ 122	$ 96
Investment in bank subsidiary	58,028	53,759
Subordinated note from subsidiary bank	6,000	6,000
Other assets	3,489	3,700
Total assets	67,778	63,779
LIABILITIES
Other liabilities	993	954
Subordinated debt (Note 7)	5,155	5,155
Total liabilities	6,148	6,109
SHAREHOLDERS’ EQUITY
Common stock	23,641	23,641
Additional paid-in capital	20,928	20,878
Retained earnings	24,403	21,485
Accumulated other comprehensive loss	(1,825)	(2,961)
Treasury stock	(5,517)	(5,373)
Total shareholders’ equity	61,630	57,670
Total liabilities and shareholders’ equity	$ 67,778	$ 63,779

Condensed Financial Informat106

Condensed Financial Information Parent Company (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statements Of Comprehensive Income
Dividends from bank subsidiary	$ 131	$ 117	$ 126
Interest on subordinated debt	(138)	(112)	(91)
Federal income tax expense	(2,417)	(1,127)	(1,219)
NET INCOME	4,350	4,871	4,378
Comprehensive income	5,780	2,148	3,764
Parent Company
Statements Of Comprehensive Income
Dividends from bank subsidiary	1,900	1,400	3,310
Interest and dividend income	153	121	97
Other income	58	60	63
Interest on subordinated debt	(138)	(112)	(91)
Other expenses	(568)	(497)	(513)
Income before income tax and equity in undistributed earnings of subsidiaries	1,405	972	2,866
Federal income tax expense	106	265	133
Equity in undistributed earnings of subsidiaries	2,839	3,634	1,379
NET INCOME	4,350	4,871	4,378
Comprehensive income	$ 5,780	$ 2,148	$ 3,764

Condensed Financial Informat107

Condensed Financial Information Parent Company (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash flow from operating activities
Net income	$ 4,350	$ 4,871	$ 4,378
Adjustments to reconcile net income to net cash flow from operating activities:
Deferred tax benefit	(28)	(129)	303
Net cash flow from operating activities	9,133	14,102	3,846
Cash deficit from financing activities
Dividends paid	(1,726)	(1,237)	(1,082)
Net cash flow from financing activities	49,514	40,912	36,451
Net change in cash and cash equivalents	3,774	(3,145)	7,927
Cash
Beginning of period	15,351	18,496	10,569
End of period	19,125	15,351	18,496
Parent Company
Cash flow from operating activities
Net income	4,350	4,871	4,378
Adjustments to reconcile net income to net cash flow from operating activities:
Equity in undistributed net income of subsidiaries	(2,839)	(3,634)	(1,379)
Deferred tax benefit	62	(15)	(6)
Equity compensation	143	75
Change in other assets and liabilities	188	138	(35)
Net cash flow from operating activities	1,904	1,435	2,958
Cash deficit from financing activities
Dividends paid	(1,726)	(1,237)	(1,082)
Treasury shares purchased	(237)		(1,850)
Net cash flow from financing activities	(1,963)	(1,237)	(2,932)
Net change in cash and cash equivalents	(59)	198	26
Cash
Beginning of period	320	122	96
End of period	$ 261	$ 320	$ 122

Dividend Restrictions (Details

Dividend Restrictions (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)
Equity [Abstract]
Payment of dividends	$ 6.7
Dividend restriction description	Under the Ohio Banking Code, cash dividends may not exceed net profits as defined for that year combined with retained net profits for the two preceding years less any required transfers to surplus. Under this formula, the amount available for payment of dividends in 2018 is $6.7 million plus 2018 profits retained up to the date of the dividend declaration.

Litigation (Details Textual)

Litigation (Details Textual)	12 Months Ended
	Dec. 31, 2017
Commitments And Contingencies Disclosure [Abstract]
Management assessment of legal actions on financial statement description	The Bank is involved in legal actions arising in the ordinary course of business. In the opinion of management, the outcomes from these other matters, either individually or in the aggregate, are not expected to have any material effect on the Company.

Stock Repurchase Program (Detai

Stock Repurchase Program (Details Textual) - USD ($)	Jan. 23, 2018	Jan. 24, 2017	Jan. 26, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Equity Class Of Treasury Stock [Line Items]
Common stock, shares outstanding				4,420,136	4,420,255
Stock repurchase program, shares repurchased				12,863
Stock Repurchase Program on January 26, 2016
Equity Class Of Treasury Stock [Line Items]
Percentage of shares authorized to be repurchased to common stock outstanding			2.30%
Common stock, shares outstanding			4,404,783
Stock repurchase program expiration date				Dec. 31, 2016
Stock repurchase program, shares repurchased					0
Stock Repurchase Program on January 26, 2016 | Maximum
Equity Class Of Treasury Stock [Line Items]
Shares authorized to be repurchased			100,000
Stock Repurchase Program on January 24, 2017
Equity Class Of Treasury Stock [Line Items]
Percentage of shares authorized to be repurchased to common stock outstanding		2.30%
Common stock, shares outstanding		4,420,055
Stock repurchase program, authorized amount				$ 2,100,000
Stock repurchase program expiration date				Dec. 31, 2017
Stock repurchase program, shares repurchased				12,863
Stock Repurchase Program on January 24, 2017 | Maximum
Equity Class Of Treasury Stock [Line Items]
Shares authorized to be repurchased		100,000
Stock Repurchase Program on January 23, 2018
Equity Class Of Treasury Stock [Line Items]
Stock repurchase program expiration date				Dec. 31, 2018
Stock Repurchase Program on January 23, 2018 | Subsequent Event
Equity Class Of Treasury Stock [Line Items]
Percentage of shares authorized to be repurchased to common stock outstanding	2.30%
Common stock, shares outstanding	4,420,136
Stock Repurchase Program on January 23, 2018 | Subsequent Event | Maximum
Equity Class Of Treasury Stock [Line Items]
Shares authorized to be repurchased	100,000

Equity Compensation (Details Te

Equity Compensation (Details Textual) - USD ($)	1 Months Ended		12 Months Ended
	Mar. 31, 2017	Apr. 30, 2016	Dec. 31, 2017	Dec. 31, 2016
Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares granted under the plan			12,976
Shares granted under the plan immediately vested			4,556
Omnibus Equity Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized			340,000
Equity compensation expense recorded			$ 123,000	$ 48,000
Unrecognized compensation expense			$ 253,000
Unrecognized compensation expense, expected to be recognized			27 months
Award vesting period			3 years
Shares awarded under the plan, vesting description			Shares awarded under this plan vest in equal thirds on the first three anniversaries of the award date if the employee remains employed with Cortland Bancorp.
Omnibus Equity Plan | Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares granted under the plan	12,976	13,683
Director Equity Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity compensation expense recorded			$ 30,000
Shares granted under the plan immediately vested		1,789
Director Equity Plan | Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized			113,000
Shares granted under the plan immediately vested	1,656

Equity Compensation (Details)

Equity Compensation (Details) - Restricted Stock Units	12 Months Ended
	Dec. 31, 2017$ / sharesshares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Units, Nonvested, beginning balance | shares	13,683
Units, Granted | shares	12,976
Units, Vested | shares	(4,556)
Units, Forfeited | shares	(1,289)
Units, Nonvested, ending balance | shares	20,814
Price at Grant Date, Nonvested, beginning balance | $ / shares	$ 15.25
Price at Grant Date, Granted | $ / shares	18.25
Price at Grant Date, Vested | $ / shares	15.25
Price at Grant Date, Forfeited | $ / shares	16.93
Price at Grant Date, Nonvested, ending balance | $ / shares	$ 17.02

Extinguishment of Debt (Details

Extinguishment of Debt (Details Textual)	1 Months Ended	12 Months Ended
	Jan. 31, 2016USD ($)Advance$ / shares	Dec. 31, 2017	Dec. 31, 2016USD ($)	Dec. 31, 2015
Extinguishment Of Debt [Line Items]
Average interest rate during the year		1.03%	0.54%	0.27%
Losses from the extinguishment of debt			$ (242,000)
Federal Home Loan Bank Advances
Extinguishment Of Debt [Line Items]
Number of federal home loan bank advances paid off | Advance	2
Extinguishment of debt, amount	$ 4,500,000
Average interest rate during the year	4.01%	0.33%	0.31%	0.10%
Losses from the extinguishment of debt	$ 242,000
Prepayment penalties after tax	$ 160,000
Extinguishment of debt effect on earnings per share | $ / shares	$ (0.04)
Debt instrument alternative wholesale borrowing rate	1.44%
Estimated annual interest expense savings	$ 130,000