Citizens & Northern (CZNC) 10-Q 2 Nov 17 2017 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Oct. 30, 2017
Document Information [Line Items]
Entity Registrant Name	CITIZENS & NORTHERN CORP
Entity Central Index Key	810,958
Trading Symbol	cznc
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding (in shares)		12,198,621
Document Type	10-Q
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Amendment Flag	false

Consolidated Balance Sheets (Cu

Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
ASSETS
Noninterest-bearing	$ 19,902	$ 17,551
Interest-bearing	12,948	14,558
Total cash and due from banks	32,850	32,109
Available-for-sale securities, at fair value	365,086	395,077
Loans held for sale	437	142
Loans receivable	801,012	751,835
Allowance for loan losses	(8,900)	(8,473)
Loans, net	792,112	743,362
Bank-owned life insurance	19,985	19,704
Accrued interest receivable	4,027	3,963
Bank premises and equipment, net	15,366	15,397
Foreclosed assets held for sale	1,650	2,180
Deferred tax asset, net	4,319	5,117
Intangible assets - Goodwill and core deposit intangibles	11,956	11,959
Other assets	12,133	13,282
TOTAL ASSETS	1,259,921	1,242,292
LIABILITIES
Noninterest-bearing	236,758	224,175
Interest-bearing	784,867	759,668
Total deposits	1,021,625	983,843
Short-term borrowings	7,739	26,175
Long-term borrowings	31,256	38,454
Accrued interest and other liabilities	8,288	7,812
TOTAL LIABILITIES	1,068,908	1,056,284
STOCKHOLDERS' EQUITY
Preferred stock, $1,000 par value; authorized 30,000 shares; $1,000 liquidation preference per share; no shares issued	0	0
Common stock, par value $1.00 per share; authorized 20,000,000 shares; issued 12,655,171; outstanding 12,197,527 at September 30, 2017 and 12,113,228 December 31, 2016	12,655	12,655
Paid-in capital	71,818	71,730
Retained earnings	114,836	112,790
Treasury stock, at cost; 457,644 shares at September 30, 2017 and 541,943 shares at December 31, 2016	(8,670)	(10,269)
Accumulated other comprehensive income (loss)	374	(898)
TOTAL STOCKHOLDERS' EQUITY	191,013	186,008
TOTAL LIABILITIES & STOCKHOLDERS' EQUITY	$ 1,259,921	$ 1,242,292

Consolidated Balance Sheets (C3

Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares	Sep. 30, 2017	Dec. 31, 2016
Preferred stock, par value (in dollars per share)	$ 1,000	$ 1,000
Preferred stock, authorized shares (in shares)	30,000	30,000
Preferred stock, liquidation preference per share (in dollars per share)	$ 1,000	$ 1,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	20,000,000	20,000,000
Common stock, shares issued (in shares)	12,655,171	12,655,171
Common stock, shares outstanding (in shares)	12,197,527	12,113,228
Treasury stock, shares (in shares)	457,644	541,943

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Interest and fees on loans:
Taxable		$ 8,889	$ 8,347	$ 25,872	$ 24,407
Tax-exempt		531	457	1,482	1,357
Interest on mortgages held for sale		10	7	20	21
Interest on balances with depository institutions		67	29	140	89
Income from available-for-sale securities:
Taxable		1,335	1,429	4,090	4,474
Tax-exempt		789	835	2,459	2,578
Dividends		5	27	15	66
Total interest and dividend income		11,626	11,131	34,078	32,992
INTEREST EXPENSE
Interest on deposits		639	549	1,735	1,550
Interest on short-term borrowings		9	30	131	133
Interest on long-term borrowings		337	365	1,050	1,090
Total interest expense		985	944	2,916	2,773
Net interest income		10,641	10,187	31,162	30,219
Provision for loan losses		322	538	778	1,224
Net interest income after provision for loan losses		10,319	9,649	30,384	28,995
OTHER INCOME
Service charges on deposit accounts		1,168	1,221	3,346	3,523
Service charges and fees		115	118	316	335
Trust and financial management revenue		1,292	1,172	3,969	3,567
Brokerage revenue		187	216	551	569
Insurance commissions, fees and premiums		26	26	98	74
Interchange revenue from debit card transactions		561	481	1,649	1,431
Net gains from sale of loans		297	236	651	699
Loan servicing fees, net		35	28	162	39
Increase in cash surrender value of life insurance		97	97	281	286
Other operating income		288	289	1,013	957
Sub-total		4,066	3,884	12,036	11,480
Realized gains on available-for-sale securities, net		5	584	257	1,089
Total other income		4,071	4,468	12,293	12,569
OTHER EXPENSES
Salaries and wages		3,985	3,901	11,825	11,701
Pensions and other employee benefits		1,216	1,060	3,890	3,499
Occupancy expense, net		580	601	1,758	1,770
Furniture and equipment expense		471	435	1,372	1,301
FDIC Assessments		93	151	283	448
Pennsylvania shares tax		336	287	1,008	932
Professional fees		269	245	750	816
Automated teller machine and interchange expense		346	291	945	807
Software subscriptions		299	237	870	729
Other operating expense		1,597	1,371	4,865	4,183
Total other expenses		9,192	8,579	27,566	26,186
Income before income tax provision		5,198	5,538	15,111	15,378
Income tax provision		1,262	1,451	3,620	3,847
NET INCOME		$ 3,936	$ 4,087	$ 11,491	$ 11,531
EARNINGS PER COMMON SHARE - BASIC (in dollars per share)	[1]	$ 0.32	$ 0.34	$ 0.94	$ 0.95
EARNINGS PER COMMON SHARE - DILUTED (in dollars per share)	[1]	$ 0.32	$ 0.34	$ 0.94	$ 0.95
[1]	Basic and diluted earnings per share under the two-class method are determined on net income reported on the income statement less earnings allocated to nonvested restricted shares with nonforfeitable dividends (participating securities).

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net income	$ 3,936	$ 4,087	$ 11,491	$ 11,531
Unrealized (losses) gains on available-for-sale securities:
Unrealized holding (losses) gains on available-for-sale securities	(213)	(1,661)	2,067	5,544
Reclassification adjustment for gains realized in income	(5)	(584)	(257)	(1,089)
Other comprehensive (loss) gain on available-for-sale securities	(218)	(2,245)	1,810	4,455
Unfunded pension and postretirement obligations:
Changes from plan amendments and actuarial gains and losses included in accumulated other comprehensive gain	0	0	166	26
Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost	(6)	(5)	(18)	(15)
Other comprehensive (loss) gain on unfunded retirement obligations	(6)	(5)	148	11
Other comprehensive (loss) income before income tax	224	2,250	(1,958)	(4,466)
Income tax related to other comprehensive income	78	786	(686)	(1,564)
Net other comprehensive (loss) income	(146)	(1,464)	1,272	2,902
Comprehensive income	$ 3,790	$ 2,623	$ 12,763	$ 14,433

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 11,491	$ 11,531
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	778	1,224
Realized gains on available-for-sale securities, net	(257)	(1,089)
Depreciation expense	1,239	1,188
Accretion and amortization on securities, net	866	1,065
Increase in cash surrender value of life insurance	(281)	(286)
Stock-based compensation and other expense	475	484
Deferred income taxes	112	7
Decrease in fair value of servicing rights	145	247
Gains on sales of loans, net	(651)	(699)
Origination of loans for sale	(19,277)	(19,366)
Proceeds from sales of loans	19,473	19,565
Decrease (increase) in accrued interest receivable and other assets	207	(305)
Increase in accrued interest payable and other liabilities	624	187
Other	86	84
Net Cash Provided by Operating Activities	15,030	13,837
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from maturities of certificates of deposit	348	1,060
Purchase of certificates of deposit	(100)	(2,280)
Proceeds from sales of available-for-sale securities	24,118	21,573
Proceeds from calls and maturities of available-for-sale securities	47,285	54,472
Purchase of available-for-sale securities	(40,211)	(59,582)
Redemption of Federal Home Loan Bank of Pittsburgh stock	5,487	3,661
Purchase of Federal Home Loan Bank of Pittsburgh stock	(4,725)	(2,364)
Net increase in loans	(50,128)	(39,647)
Proceeds from bank owned life insurance	0	1,442
Purchase of premises and equipment	(1,209)	(1,188)
Proceeds from sale of foreclosed assets	1,035	361
Other	144	115
Net Cash Used in Investing Activities	(17,956)	(22,377)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase in deposits	37,782	56,265
Net decrease in short-term borrowings	(18,436)	(38,906)
Proceeds from long-term borrowings	3,000	0
Repayments of long-term borrowings	(10,198)	(229)
Purchase of treasury stock	0	(3,723)
Sale of treasury stock	98	126
Tax benefit from compensation plans	0	129
Common dividends paid	(8,331)	(8,333)
Net Cash Provided by Financing Activities	3,915	5,329
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	989	(3,211)
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	28,621	33,313
CASH AND CASH EQUIVALENTS, END OF PERIOD	29,610	30,102
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Accrued purchase of available-for-sale securities	0	1,494
Assets acquired through foreclosure of real estate loans	608	1,508
Interest paid	2,942	2,764
Income taxes paid	$ 3,163	$ 3,185

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Dec. 31, 2015	12,655,171	474,548
Balance at Dec. 31, 2015	$ 12,655	$ (8,804)	$ 71,654	$ 109,454	$ 2,528	$ 187,487
Net income				11,531		11,531
Other comprehensive income, net					2,902	2,902
Cash dividends declared on common stock, $0.78 per share				(9,435)		(9,435)
Shares issued for dividend reinvestment Plan (in shares)		(53,596)
Shares issued for dividend reinvestment Plan		$ 1,012	90			1,102
Shares issued from treasury and redeemed related to exercise of stock options (in shares)		(7,371)
Shares issued from treasury and redeemed related to exercise of stock options		$ 139	(13)			126
Restricted stock granted (in shares)		(35,427)
Restricted stock granted		$ 658	(658)			0
Forfeiture of restricted stock (in shares)		2,719
Forfeiture of restricted stock		$ (48)	48			0
Stock-based compensation expense			480			480
Treasury stock purchased (in shares)		187,300
Treasury stock purchased		$ (3,723)				(3,723)
Other stock-based expense (in shares)		(225)
Other stock-based expense		$ 4				4
Tax effect of stock option exercises			(2)			(2)
Tax benefit from dividends on restricted stock			17			17
Tax benefit from compensation plans				114		114
Balance (in shares) at Sep. 30, 2016	12,655,171	567,948
Balance at Sep. 30, 2016	$ 12,655	$ (10,762)	71,616	111,664	5,430	190,603
Balance (in shares) at Dec. 31, 2016	12,655,171	541,943
Balance at Dec. 31, 2016	$ 12,655	$ (10,269)	71,730	112,790	(898)	186,008
Net income				11,491		11,491
Other comprehensive income, net					1,272	1,272
Cash dividends declared on common stock, $0.78 per share				(9,445)		(9,445)
Shares issued for dividend reinvestment Plan (in shares)		(48,092)
Shares issued for dividend reinvestment Plan		$ 911	203			1,114
Shares issued from treasury and redeemed related to exercise of stock options (in shares)		(9,681)
Shares issued from treasury and redeemed related to exercise of stock options		$ 184	(86)			98
Restricted stock granted (in shares)		(30,782)
Restricted stock granted		$ 583	(583)			0
Forfeiture of restricted stock (in shares)		4,256
Forfeiture of restricted stock		$ (79)	79			0
Stock-based compensation expense			475			475
Balance (in shares) at Sep. 30, 2017	12,655,171	457,644
Balance at Sep. 30, 2017	$ 12,655	$ (8,670)	$ 71,818	$ 114,836	$ 374	$ 191,013

Consolidated Statements of Cha8

Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Retained Earnings [Member]
Common stock, dividends, per share (in dollars per share)	$ 0.78	$ 0.78

Note 1 - Basis of Interim Prese

Note 1 - Basis of Interim Presentation	9 Months Ended
	Sep. 30, 2017
Notes to Financial Statements
Basis of Accounting [Text Block]	1. The consolidated financial information included herein, with the exception of the consolidated balance sheet dated December 31, 2016, not 2016 2017 Operating results reported for the three nine September 30, 2017 not December 31, 2017.

Note 2 - Per Share Data

Note 2 - Per Share Data	9 Months Ended
	Sep. 30, 2017
Notes to Financial Statements
Earnings Per Share [Text Block]	2 . PER SHARE DATA Basic earnings per common share are calculated using the two two Diluted earnings per common share are calculated under the more dilutive of either the treasury method or the two 3 Months Ended 9 Months Ended Sept. 30, Sept. 30, Sept. 30, Sept. 30, 2017 2016 2017 2016 Basic Net income $ 3,936,000 $ 4,087,000 $ 11,491,000 $ 11,531,000 Less: Dividends and undistributed earnings allocated to participating securities (20,000 ) (22,000 ) (59,000 ) (63,000 ) Net income attributable to common shares $ 3,916,000 $ 4,065,000 $ 11,432,000 $ 11,468,000 Basic weighted-average common shares outstanding 12,124,854 12,014,267 12,105,673 12,032,619 Basic earnings per common share (a) $ 0.32 $ 0.34 $ 0.94 $ 0.95 Diluted Net income attributable to common shares $ 3,916,000 $ 4,065,000 $ 11,432,000 $ 11,468,000 Basic weighted-average common shares outstanding 12,124,854 12,014,267 12,105,673 12,032,619 Dilutive effect of potential common stock arising from stock options 37,409 29,799 40,624 24,020 Diluted weighted-average common shares outstanding 12,162,263 12,044,066 12,146,297 12,056,639 Diluted earnings per common share (a) $ 0.32 $ 0.34 $ 0.94 $ 0.95 (a) Basic and diluted earnings per share under the two The weighted-average number of nonvested restricted shares outstanding was 6 1,233 three September 30, 2017 64,130 three September 30, 2016. 62,825 nine September 30, 2017 65,935 nine September 30, 2016. Stock options that were anti-dilutive were excluded from net income per share calculations. There were no three nine September 30, 2017. 22,715 third 2016 39,054 nine September 30, 2016.

Note 3 - Comprehensive Income

Note 3 - Comprehensive Income	9 Months Ended
	Sep. 30, 2017
Notes to Financial Statements
Comprehensive Income (Loss) Note [Text Block]	3 . COMPREHENSIVE INCOME Comprehensive income is the total of ( 1 2 (In Thousands) Before-Tax Income Tax Net-of-Tax Amount Effect Amount Nine Months Ended September 30, 2017 Unrealized gains on available-for-sale securities: Unrealized holding gains on available-for-sale securities $ 2,067 $ (723 ) $ 1,344 Reclassification adjustment for (gains) realized in income (257 ) 89 (168 ) Other comprehensive income on available-for-sale securities 1,810 (634 ) 1,176 Unfunded pension and postretirement obligations: Changes from plan amendments and actuarial gains and losses included in other comprehensive income 166 (58 ) 108 Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost (18 ) 6 (12 ) Other comprehensive income on unfunded retirement obligations 148 (52 ) 96 Total other comprehensive income $ 1,958 $ (686 ) $ 1,272 (In Thousands) Before-Tax Income Tax Net-of-Tax Amount Effect Amount Nine Months Ended September 30, 2016 Unrealized gains on available-for-sale securities: Unrealized holding gains on available-for-sale securities $ 5,544 $ (1,941 ) $ 3,603 Reclassification adjustment for (gains) realized in income (1,089 ) 381 (708 ) Other comprehensive income on available-for-sale securities 4,455 (1,560 ) 2,895 Unfunded pension and postretirement obligations: Changes from plan amendments and actuarial gains and losses included in other comprehensive income 26 (9 ) 17 Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost (15 ) 5 (10 ) Other comprehensive income on unfunded retirement obligations 11 (4 ) 7 Total other comprehensive income $ 4,466 $ (1,564 ) $ 2,902 (In Thousands) Before-Tax Income Tax Net-of-Tax Amount Effect Amount Three Months Ended September 30, 2017 Unrealized losses on available-for-sale securities: Unrealized holding losses on available-for-sale securities $ (213 ) $ 75 $ (138 ) Reclassification adjustment for (gains) realized in income (5 ) 1 (4 ) Other comprehensive loss on available-for-sale securities (218 ) 76 (142 ) Unfunded pension and postretirement obligations: Changes from plan amendments and actuarial gains and losses included in other comprehensive income 0 0 0 Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost (6 ) 2 (4 ) Other comprehensive loss on unfunded retirement obligations (6 ) 2 (4 ) Total other comprehensive loss $ (224 ) $ 78 $ (146 ) (In Thousands) Before-Tax Income Tax Net-of-Tax Amount Effect Amount Three Months Ended September 30, 2016 Unrealized losses on available-for-sale securities: Unrealized holding losses on available-for-sale securities $ (1,661 ) $ 580 $ (1,081 ) Reclassification adjustment for (gains) realized in income (584 ) 204 (380 ) Other comprehensive loss on available-for-sale securities (2,245 ) 784 (1,461 ) Unfunded pension and postretirement obligations: Changes from plan amendments and actuarial gains and losses included in other comprehensive income 0 0 0 Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost (5 ) 2 (3 ) Other comprehensive loss on unfunded retirement obligations (5 ) 2 (3 ) Total other comprehensive loss $ (2,250 ) $ 786 $ (1,464 ) Changes in the components of accumulated other comprehensive income are as follows and are presented net of tax: (In Thousands) Unrealized Accumulated Holding Gains Unfunded Other (Losses) Retirement Comprehensive on Securities Obligations Income Nine Months Ended September 30, 2017 Balance, beginning of period $ (949 ) $ 51 $ (898 ) Change during nine months ended September 30, 2017 1,176 96 1,272 Balance, end of period $ 227 $ 147 $ 374 Nine Months Ended September 30, 2016 Balance, beginning of period $ 2,493 $ 35 $ 2,528 Change during nine months ended September 30, 2016 2,895 7 2,902 Balance, end of period $ 5,388 $ 42 $ 5,430 Three Months Ended September 30, 2017 Balance, beginning of period $ 369 $ 151 $ 520 Change during three months ended September 30, 2017 (142 ) (4 ) (146 ) Balance, end of period $ 227 $ 147 $ 374 Three Months Ended September 30, 2016 Balance, beginning of period $ 6,849 $ 45 $ 6,894 Change during three months ended September 30, 2016 (1,461 ) (3 ) (1,464 ) Balance, end of period $ 5,388 $ 42 $ 5,430 Items reclassified out of each component of other comprehensive income are as follows: For the Nine Months Ended September 30, 2017 (In Thousands) Reclassified from Details about Accumulated Other Accumulated Other Affected Line Item in the Consolidated Comprehensive Income Components Comprehensive Income Statements of Income Unrealized gains and losses on available-for-sale Securities $ (257 ) Realized gains on available-for-sale securities, net 89 Income tax provision (168 ) Net of tax Amortization of defined benefit pension and postretirement items: Prior service cost (23 ) Pensions and other employee benefits Actuarial loss 5 Pensions and other employee benefits (18 ) Total before tax 6 Income tax provision (12 ) Net of tax Total reclassifications for the period $ (180 ) For the Nine Months Ended September 30, 2016 (In Thousands) Reclassified from Details about Accumulated Other Accumulated Other Affected Line Item in the Consolidated Comprehensive Income Components Comprehensive Income Statements of Income Unrealized gains and losses on available-for-sale securities $ (1,089 ) Realized gains on available-for-sale securities, net 381 Income tax provision (708 ) Net of tax Amortization of defined benefit pension and postretirement items: Prior service cost (23 ) Pensions and other employee benefits Actuarial loss 8 Pensions and other employee benefits (15 ) Total before tax 5 Income tax provision (10 ) Net of tax Total reclassifications for the period $ (718 ) For the Three Months Ended September 30, 2017 (In Thousands) Reclassified from Details about Accumulated Other Accumulated Other Affected Line Item in the Consolidated Comprehensive Income Components Comprehensive Income Statements of Income Unrealized gains and losses on available-for-sale securities $ (5 ) Realized gains on available-for-sale securities, net 1 Income tax provision (4 ) Net of tax Amortization of defined benefit pension and postretirement items: Prior service cost (8 ) Pensions and other employee benefits Actuarial loss 2 Pensions and other employee benefits (6 ) Total before tax 2 Income tax provision (4 ) Net of tax Total reclassifications for the period $ (8 ) For the Three Months Ended September 30, 2016 (In Thousands) Reclassified from Details about Accumulated Other Accumulated Other Affected Line Item in the Consolidated Comprehensive Income Components Comprehensive Income Statements of Income Unrealized gains and losses on available-for-sale Securities $ (584 ) Realized gains on available-for-sale securities, net 204 Income tax provision (380 ) Net of tax Amortization of defined benefit pension and postretirement items: Prior service cost (8 ) Pensions and other employee benefits Actuarial loss 3 Pensions and other employee benefits (5 ) Total before tax 2 Income tax provision (3 ) Net of tax Total reclassifications for the period $ (383 )

Note 4 - Cash and Due From Bank

Note 4 - Cash and Due From Banks	9 Months Ended
	Sep. 30, 2017
Notes to Financial Statements
Cash and Cash Equivalents Disclosure [Text Block]	4 . CASH AND DUE FROM BANKS Cash and due from banks at September 30, 2017 December 31, 2016 (In thousands) Sept. 30, Dec. 31, 2017 2016 Cash and cash equivalents $ 29,610 $ 28,621 Certificates of deposit 3,240 3,488 Total cash and due from banks $ 32,850 $ 32,109 Certificates of deposit are issues by U.S. banks with original maturities greater than three The Corporation is required to maintain reserves against deposit liabilities in the form of cash and balances with the Federal Reserve Bank of Philadelphia. The reserves are based on deposit levels, account activity, and other services provided by the Federal Reserve Bank. Required reserves were $17,213,000 September 30, 2017 $16,654,000 December 31, 2016.

Note 5 - Fair Value Measurement

Note 5 - Fair Value Measurements and Fair Values of Financial Instruments	9 Months Ended
	Sep. 30, 2017
Notes to Financial Statements
Fair Value Disclosures [Text Block]	5 . FAIR VALUE MEASUREMENTS AND FAIR VALUES OF FINANCIAL INSTRUMENTS The Corporation measures certain assets at fair value. Fair value is defined as the price that would be received to sell an asset in an orderly transaction between market participants at the measurement date. FASB Accounting Standards Codification (ASC) topic 820, three Level 1 – Fair value is based on unadjusted quoted prices in active markets that are accessible to the Corporation for identical assets. These generally provide the most reliable evidence and are used to measure fair value whenever available. Level 2 – Fair value is based on significant inputs, other than Level 1 2 not Level 3 – Fair value is based on significant unobservable inputs. Examples of valuation methodologies that would result in Level 3 The Corporation monitors and evaluates available data relating to fair value measurements on an ongoing basis and recognizes transfers among the levels of the fair value hierarchy as of the date of an event or change in circumstances that affects the valuation method chosen. Examples of such changes may ilability of other market data. At September 30, 2017 December 31, 2016, September 3 0 , 201 7 Quoted Prices Other in Active Observable Unobservable Total Markets Inputs Inputs Fair (In Thousands) (Level 1) (Level 2) (Level 3) Value Recurring fair value measurements AVAILABLE-FOR-SALE SECURITIES: Obligations of U.S. Government agencies $ 0 $ 7,946 $ 0 $ 7,946 Obligations of states and political subdivisions: Tax-exempt 0 110,557 0 110,557 Taxable 0 27,816 0 27,816 Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies: Residential pass-through securities 0 54,917 0 54,917 Residential collateralized mortgage obligations 0 129,243 0 129,243 Commercial mortgage-backed securities 0 33,629 0 33,629 Total debt securities 0 364,108 0 364,108 Marketable equity securities 978 0 0 978 Total available-for-sale securities 978 364,108 0 365,086 Servicing rights 0 0 1,277 1,277 Total recurring fair value measurements $ 978 $ 364,108 $ 1,277 $ 366,363 Nonrecurring fair value measurements Impaired loans with a valuation allowance $ 0 $ 0 $ 3,258 $ 3,258 Valuation allowance 0 0 (1,077 ) (1,077 ) Impaired loans, net 0 0 2,181 2,181 Foreclosed assets held for sale 0 0 1,650 1,650 Total nonrecurring fair value measurements $ 0 $ 0 $ 3,831 $ 3,831 December 31, 201 6 Quoted Prices Other in Active Observable Unobservable Total Markets Inputs Inputs Fair (In Thousands) (Level 1) (Level 2) (Level 3) Value Recurring fair value measurements AVAILABLE-FOR-SALE SECURITIES: Obligations of U.S. Government agencies $ 0 $ 9,541 $ 0 $ 9,541 Obligations of states and political subdivisions: Tax-exempt 0 119,037 0 119,037 Taxable 0 30,297 0 30,297 Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies: Residential pass-through securities 0 58,404 0 58,404 Residential collateralized mortgage obligations 0 146,608 0 146,608 Commercial mortgage-Backed securities 0 30,219 0 30,219 Total debt securities 0 394,106 0 394,106 Marketable equity securities 971 0 0 971 Total available-for-sale securities 971 394,106 0 395,077 Servicing rights 0 0 1,262 1,262 Total recurring fair value measurements $ 971 $ 394,106 $ 1,262 $ 396,339 Nonrecurring fair value measurements Impaired loans with a valuation allowance $ 0 $ 0 $ 3,372 $ 3,372 Valuation allowance 0 0 (674 ) (674 ) Impaired loans, net 0 0 2,698 2,698 Foreclosed assets held for sale 0 0 2,180 2,180 Total nonrecurring fair value measurements $ 0 $ 0 $ 4,878 $ 4,878 Management ’s evaluation and selection of valuation techniques and the unobservable inputs used in determining the fair values of assets valued using Level 3 At September 30, 2017 December 31, 2016, 3 Fair Value at 9 /3 0 /1 7 Valuation Unobservable Method or Value As of Asset (In Thousands) Technique Input(s) 9 /3 0 /17 Servicing rights $ 1,277 Discounted cash flow Discount rate 13.00 % Rate used through modeling period Loan prepayment speeds 147.00 % Weighted-average PSA Servicing fees 0.25 % of loan balances 4.00 % of payments are late 5.00 % late fees assessed $ 1.94 Miscellaneous fees per account per month Servicing costs $ 6.00 Monthly servicing cost per account $ 24.00 Additional monthly servicing cost per loan on loans more than 30 days delinquent 1.50 % of loans more than 30 days delinquent 3.00 % annual increase in servicing costs Fair Value at 12/31/1 6 Valuation Unobservable Method or Value As of Asset (In Thousands) Technique Input(s) 12/31/1 6 Servicing rights $ 1,262 Discounted cash flow Discount rate 13.00 % Rate used through modeling period Loan prepayment speeds 138.00 % Weighted-average PSA Servicing fees 0.25 % of loan balances 4.00 % of payments are late 5.00 % late fees assessed $ 1.94 Miscellaneous fees per account per month Servicing costs $ 6.00 Monthly servicing cost per account $ 24.00 Additional monthly servicing cost per loan on loans more than 30 days delinquent 1.50 % of loans more than 30 days delinquent 3.00 % annual increase in servicing costs The fair value of servicing rights is affected by expected future interest rates. Increases (decreases) in future expected interest rates tend to increase (decrease) the fair value of the Corporation ’s servicing rights because of changes in expected prepayment behavior by the borrowers on the underlying loans. Unrealized gains (losses) in fair value of servicing rights are included in Loan servicing fees, net, in the unaudited consolidated statements of income. Following is a reconciliation of activity for Level 3 (In Thousands) Three Months Ended Nine Months Ended Sept. 30, 2017 Sept. 30, 2016 Sept. 30, 2017 Sept. 30, 2016 Servicing rights balance, beginning of period $ 1,279 $ 1,224 $ 1,262 $ 1,296 Issuances of servicing rights 65 52 160 159 Unrealized losses included in earnings (67 ) (68 ) (145 ) (247 ) Servicing rights balance, end of period $ 1,277 $ 1,208 $ 1,277 $ 1,208 Loans are classified as impaired when, based on current information and events, it is probable that the Corporation will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Foreclosed assets held for sale consist of real estate acquired by foreclosure. For impaired commercial loans secured by real estate and foreclosed assets held for sale, estimated fair values are determined primarily using values from third At September 30, 2017 December 31, 2016, 3 (In Thousands, Except Weighted- Percentages) Valuation Average Balance at Allowance at Fair Value at Valuation Unobservable Discount at Asset 9 /30/17 9 /30/17 9 /30/17 Technique Inputs 9 /30/17 Impaired loans: Commercial: Commercial loans secured by real estate $ 2,686 $ 952 $ 1,734 Sales comparison Discount to appraised value 16 % Commercial and industrial 75 75 0 Sales comparison Discount to appraised value 100 % Loans secured by farmland 497 50 447 Sales comparison Discount to appraised value 53 % Total impaired loans $ 3,258 $ 1,077 $ 2,181 Foreclosed assets held for sale - real estate: Residential (1-4 family) $ 640 $ 0 $ 640 Sales comparison Discount to appraised value 35 % Land 646 0 646 Sales comparison Discount to appraised value 34 % Commercial real estate 364 0 364 Sales comparison Discount to appraised value 63 % Total foreclosed assets held for sale $ 1,650 $ 0 $ 1,650 (In Thousands, Except Weighted- Percentages) Valuation Average Balance at Allowance at Fair Value at Valuation Unobservable Discount at Asset 12/31/16 12/31/16 12/31/16 Technique Inputs 12/31/16 Impaired loans: Commercial: Commercial loans secured by real estate $ 2,773 $ 528 $ 2,245 Sales comparison Discount to appraised value 7 % Commercial and industrial 95 95 0 Sales comparison Discount to appraised value 100 % Loans secured by farmland 504 51 453 Sales comparison Discount to appraised value 55 % Total impaired loans $ 3,372 $ 674 $ 2,698 Foreclosed assets held for sale - real estate: Residential (1-4 family) $ 1,102 $ 0 $ 1,102 Sales comparison Discount to appraised value 35 % Land 650 0 650 Sales comparison Discount to appraised value 33 % Commercial real estate 428 0 428 Sales comparison Discount to appraised value 50 % Total foreclosed assets held for sale $ 2,180 $ 0 $ 2,180 Ce rtain of the Corporation’s financial instruments are not not may not may not The Corporation used the following methods and assumptions in estimating fair value disclosures for financial instruments: CASH AND CASH EQUIVALENTS - The carrying amounts of cash and short-term instruments approximate fair values. CERTIFICATES OF DEPOSIT - Fair values for certificates of deposit, included in cash and due from banks in the consolidated balance sheet, are based on quoted market prices for certificates of similar remaining maturities. SECURITIES - Fair values for securities, excluding restricted equity securities, are based on quoted market prices or other methods as described above. The carrying value of restricted equity securities approximates fair value based on applicable redemption provisions. LOANS HELD FOR SALE - Fair values of loans held for sale are determined based on applicable sale prices available under the Federal Home Loan Banks’ MPF Xtra and MPF Original programs. LOANS - Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type such as commercial, commercial real estate, residential mortgage and other consumer. Each loan category is further segmented into fixed and adjustable rate interest terms and by performing and nonperforming categories. The fair value of performing loans is calculated by discounting contractual cash flows, adjusted for estimated prepayments based on historical experience, using estimated market discount rates that reflect the credit and interest rate risk inherent in the loans. Fair value of nonperforming loans is based on recent appraisals or estimates prepared by the Corporation’s lending officers. SERVICING RIGHTS - The fair value of servicing rights, included in other assets in the consolidated balance sheet, is determined through a discounted cash flow valuation. Significant inputs include expected net servicing income, the discount rate and the expected prepayment speeds of the underlying loans. DEPOSITS - The fair value of deposits with no September 30, 2017 December 31, 2016. not BORROWED FUNDS - The fair value of borrowings is estimated using discounted cash flow analyses based on rates currently available to the Corporation for similar types of borrowing arrangements. ACCRUED INTEREST - The carrying amounts of accrued interest receivable and payable approximate fair values. OFF-BALANCE SHEET COMMITMENTS - The Corporation has commitments to extend credit and has issued standby letters of credit. Standby letters of credit are conditional guarantees of performance by a customer to a third not The estimated fair values, and related carrying amounts, of the Corporation ’s financial instruments are as follows: (In Thousands) Valuation September 3 0 , 201 7 December 31, 2016 Method(s) Carrying Fair Carrying Fair Used Amount Value Amount Value Financial assets: Cash and cash equivalents Level 1 $ 29,610 $ 29,610 $ 28,621 $ 28,621 Certificates of deposit Level 2 3,240 3,239 3,488 3,481 Available-for-sale securities See Above 365,086 365,086 395,077 395,077 Restricted equity securities (included in Other Assets) Level 2 3,664 3,664 4,426 4,426 Loans held for sale Level 1 437 437 142 142 Loans, net Level 3 792,112 777,413 743,362 725,787 Accrued interest receivable Level 2 4,027 4,027 3,963 3,963 Servicing rights Level 3 1,277 1,277 1,262 1,262 Financial liabilities: Deposits with no stated maturity Level 2 801,942 801,942 771,625 771,625 Time deposits Level 2 219,683 220,017 212,218 212,274 Short-term borrowings Level 2 7,739 7,626 26,175 26,024 Long-term borrowings Level 2 31,256 31,460 38,454 39,062 Accrued interest payable Level 2 39 39 65 65

Note 6 - Securities

Note 6 - Securities	9 Months Ended
	Sep. 30, 2017
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	6 . SECURITIES Amortized cost and fair value of available-for-sale securities at September 30, 2017 December 31, 2016 September 3 0 , 201 7 Gross Gross Unrealized Unrealized Amortized Holding Holding Fair (In Thousands) Cost Gains Losses Value Obligations of U.S. Government agencies $ 8,028 $ 0 $ (82 ) $ 7,946 Obligations of states and political subdivisions: Tax-exempt 108,521 2,678 (642 ) 110,557 Taxable 27,538 316 (38 ) 27,816 Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies: Residential pass-through securities 55,247 113 (443 ) 54,917 Residential collateralized mortgage obligations 130,375 323 (1,455 ) 129,243 Commercial mortgage-backed securities 34,028 31 (430 ) 33,629 Total debt securities 363,737 3,461 (3,090 ) 364,108 Marketable equity securities 1,000 0 (22 ) 978 Total $ 364,737 $ 3,461 $ (3,112 ) $ 365,086 December 31, 2016 Gross Gross Unrealized Unrealized Amortized Holding Holding Fair (In Thousands) Cost Gains Losses Value Obligations of U.S. Government agencies $ 9,671 $ 5 $ (135 ) $ 9,541 Obligations of states and political subdivisions: Tax-exempt 118,140 2,592 (1,695 ) 119,037 Taxable 30,073 303 (79 ) 30,297 Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies: Residential pass-through securities 58,922 306 (824 ) 58,404 Residential collateralized mortgage obligations 147,915 408 (1,715 ) 146,608 Commercial mortgage-backed securities 30,817 0 (598 ) 30,219 Total debt securities 395,538 3,614 (5,046 ) 394,106 Marketable equity securities 1,000 0 (29 ) 971 Total $ 396,538 $ 3,614 $ (5,075 ) $ 395,077 The following table presents gross unrealized losses and fair value of available-for-sale securities with unrealized loss positions that are not September 30, 2017 December 31, 2016: September 3 0 , 2017 Less Than 12 Months 12 Months or More Total (In Thousands) Fair Unrealized Fair Unrealized Fair Unrealized Value Losses Value Losses Value Losses Obligations of U.S. Government agencies $ 7,946 $ (82 ) $ 0 $ 0 $ 7,946 $ (82 ) Obligations of states and political subdivisions: Tax-exempt 21,028 (238 ) 14,890 (404 ) 35,918 (642 ) Taxable 7,073 (38 ) 0 0 7,073 (38 ) Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies: Residential pass-through securities 47,572 (443 ) 0 0 47,572 (443 ) Residential collateralized mortgage obligations 64,948 (747 ) 25,718 (708 ) 90,666 (1,455 ) Commercial mortgage-backed securities 24,890 (275 ) 4,760 (155 ) 29,650 (430 ) Total debt securities 173,457 (1,823 ) 45,368 (1,267 ) 218,825 (3,090 ) Marketable equity securities 1,000 (22 ) 0 0 1,000 (22 ) Total temporarily impaired available-for-sale securities $ 174,457 $ (1,845 ) $ 45,368 $ (1,267 ) $ 219,825 $ (3,112 ) December 31, 2016 Less Than 12 Months 12 Months or More Total (In Thousands) Fair Unrealized Fair Unrealized Fair Unrealized Value Losses Value Losses Value Losses Obligations of U.S. Government agencies $ 7,899 $ (135 ) $ 0 $ 0 $ 7,899 $ (135 ) Obligations of states and political subdivisions: Tax-exempt 54,479 (1,676 ) 1,278 (19 ) 55,757 (1,695 ) Taxable 9,594 (79 ) 0 0 9,594 (79 ) Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies: Residential pass-through securities 48,674 (824 ) 0 0 48,674 (824 ) Residential collateralized mortgage obligations 85,198 (1,124 ) 16,073 (591 ) 101,271 (1,715 ) Commercial mortgage-backed securities 30,219 (598 ) 0 0 30,219 (598 ) Total debt securities 236,063 (4,436 ) 17,351 (610 ) 253,414 (5,046 ) Marketable equity securities 1,000 (29 ) 0 0 1,000 (29 ) Total temporarily impaired available-for-sale securities $ 237,063 $ (4,465 ) $ 17,351 $ (610 ) $ 254,414 $ (5,075 ) Gross realized gains and losses from available-for-sale securities were as follows: (In Thousands) 3 Months Ended 9 Months Ended Sept. 30, Sept. 30, Sept. 30, Sept. 30, 2017 2016 2017 2016 Gross realized gains from sales $ 47 $ 584 $ 315 $ 1,090 Gross realized losses from sales (42 ) 0 (58 ) (1 ) Net realized gains $ 5 $ 584 $ 257 $ 1,089 The amortized cost and fair value of available-for-sale debt securities by contractual maturity are shown in the following table as of September 30, 2017. may may Amortized Fair (In Thousands) Cost Value Due in one year or less $ 12,478 $ 12,491 Due from one year through five years 71,673 73,134 Due from five years through ten years 36,361 36,517 Due after ten years 23,575 24,177 Sub-total 144,087 146,319 Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies: Residential pass-through securities 55,247 54,917 Residential collateralized mortgage obligations 130,375 129,243 Commercial mortgage-backed securities 34,028 33,629 Total $ 363,737 $ 364,108 The Corporation ’s mortgage-backed securities have stated maturities that may one Investment securities carried at $ 224,612,000 September 30, 2017 $230,803,000 December 31, 2016 8 Management evaluates securities for other-than-temporary impairment (OTTI) at least on a quarterly basis, and more frequently when economic or market conditions warrant such evaluation. Consideration is given to ( 1 2 3 not A summary of information management considered in evaluating debt and equity securities for other-than-temporary impairment (“OTTI”) at September 30, 2017 Debt Securities At September 30, 2017, September 30, 2017 Equity Securities The Corporation ’s marketable equity securities at September 30, 2017 December 31, 2016 one September 30, 2017, $22,000, December 31, 2016 $29,000. not September 30, 2017 December 31, 2016. The Corporation had no first nine 2017. $560,000 three September 30, 2016 $837,000 first nine 2016. C&N Bank is a member of the Federal Home Loan Bank of Pittsburgh (FHLB-Pittsburgh), which is one 1 1 no $3,534,000 September 30, 2017 $4,296,000 December 31, 2016. not September 30, 2017 December 31, 2016.

Note 7 - Loans

Note 7 - Loans	9 Months Ended
	Sep. 30, 2017
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	7 . LOANS The loans receivable portfolio is segmented into residential mortgage, commercial and consumer loans. Loans outstanding at September 30, 2017 December 31, 2016 Summary of Loans by Type (In Thousands) Sept. 30, Dec. 31, 2017 2016 Residential mortgage: Residential mortgage loans - first liens $ 355,285 $ 334,102 Residential mortgage loans - junior liens 24,694 23,706 Home equity lines of credit 36,534 38,057 1-4 Family residential construction 25,286 24,908 Total residential mortgage 441,799 420,773 Commercial: Commercial loans secured by real estate 158,520 150,468 Commercial and industrial 83,243 83,854 Political subdivisions 54,730 38,068 Commercial construction and land 13,937 14,287 Loans secured by farmland 7,744 7,294 Multi-family (5 or more) residential 7,566 7,896 Agricultural loans 6,137 3,998 Other commercial loans 12,383 11,475 Total commercial 344,260 317,340 Consumer 14,953 13,722 Total 801,012 751,835 Less: allowance for loan losses (8,900 ) (8,473 ) Loans, net $ 792,112 $ 743,362 The Corporation grants loans to individuals as well as commercial and tax-exempt entities. Commercial, residential and personal loans are made to customers geographically concentrated in the Pennsylvania and New York counties that comprise the market serviced by Citizens & Northern Bank. Although the Corporation has a diversified loan portfolio, a significant portion of its debtors ’ ability to honor their contracts is dependent on the local economic conditions within the region. There is no 10% September 30, 2017 December 31, 2016. The Corporation maintains an allowance for loan losses that represents management ’s estimate of the losses inherent in the loan portfolio as of the balance sheet date and recorded as a reduction of the investment in loans. The allowance for loan losses is maintained at a level considered adequate to provide for losses that can be reasonably anticipated. Management performs a quarterly evaluation of the adequacy of the allowance. The allowance is based on the Corporation’s past loan loss experience, known and inherent risks in the portfolio, adverse situations that may may September 30, 2017 December 31, 2016, no Transactions within the allowance for loan losses, summarized by segm ent and class, for the three nine September 30, 2017 2016 Three Months Ended September 30, 2017 June 30, Sept. 30, (In Thousands) 2017 Balance Charge-offs Recoveries Provision (Credit) 2017 Balance Allowance for Loan Losses: Residential mortgage: Residential mortgage loans - first liens $ 3,052 $ 0 $ 1 $ 112 $ 3,165 Residential mortgage loans - junior liens 261 0 1 3 265 Home equity lines of credit 332 0 0 (6 ) 326 1-4 Family residential construction 251 0 0 (8 ) 243 Total residential mortgage 3,896 0 2 101 3,999 Commercial: Commercial loans secured by real estate 2,610 0 0 27 2,637 Commercial and industrial 910 0 1 93 1,004 Commercial construction and land 162 0 0 (13 ) 149 Loans secured by farmland 107 0 0 3 110 Multi-family (5 or more) residential 169 0 0 2 171 Agricultural loans 42 0 0 16 58 Other commercial loans 105 0 0 12 117 Total commercial 4,105 0 1 140 4,246 Consumer 134 (67 ) 7 81 155 Unallocated 500 0 0 0 500 Total Allowance for Loan Losses $ 8,635 $ (67 ) $ 10 $ 322 $ 8,900 Three Months Ended September 30, 2016 June 30, Sept. 30, (In Thousands) 2016 Balance Charge-offs Recoveries Provision (Credit) 2016 Balance Allowance for Loan Losses: Residential mortgage: Residential mortgage loans - first liens $ 2,830 $ (31 ) $ 2 $ 155 $ 2,956 Residential mortgage loans - junior liens 239 0 0 9 248 Home equity lines of credit 359 0 0 0 359 1-4 Family residential construction 222 0 0 14 236 Total residential mortgage 3,650 (31 ) 2 178 3,799 Commercial: Commercial loans secured by real estate 2,083 0 0 304 2,387 Commercial and industrial 1,038 (2 ) 1 1 1,038 Commercial construction and land 105 0 0 41 146 Loans secured by farmland 103 0 0 3 106 Multi-family (5 or more) residential 248 0 0 (5 ) 243 Agricultural loans 47 0 0 (4 ) 43 Other commercial loans 119 0 0 (3 ) 116 Total commercial 3,743 (2 ) 1 337 4,079 Consumer 138 (28 ) 12 23 145 Unallocated 398 0 0 0 398 Total Allowance for Loan Losses $ 7,929 $ (61 ) $ 15 $ 538 $ 8,421 Nine Months Ended September 30, 2017 Dec. 31, Sept. 30, (In Thousands) 2016 Balance Charge-offs Recoveries Provision (Credit) 2017 Balance Allowance for Loan Losses: Residential mortgage: Residential mortgage loans - first liens $ 3,033 $ (162 ) $ 15 $ 279 $ 3,165 Residential mortgage loans - junior liens 258 (16 ) 3 20 265 Home equity lines of credit 350 0 0 (24 ) 326 1-4 Family residential construction 249 0 0 (6 ) 243 Total residential mortgage 3,890 (178 ) 18 269 3,999 Commercial: Commercial loans secured by real estate 2,380 (96 ) 0 353 2,637 Commercial and industrial 999 (1 ) 3 3 1,004 Commercial construction and land 162 0 0 (13 ) 149 Loans secured by farmland 110 0 0 0 110 Multi-family (5 or more) residential 241 0 0 (70 ) 171 Agricultural loans 40 0 0 18 58 Other commercial loans 115 0 0 2 117 Total commercial 4,047 (97 ) 3 293 4,246 Consumer 138 (127 ) 30 114 155 Unallocated 398 0 0 102 500 Total Allowance for Loan Losses $ 8,473 $ (402 ) $ 51 $ 778 $ 8,900 Nine Months Ended September 30, 2016 Dec. 31, Sept. 30, (In Thousands) 2015 Balance Charge-offs Recoveries Provision (Credit) 2016 Balance Allowance for Loan Losses: Residential mortgage: Residential mortgage loans - first liens $ 2,645 $ (73 ) $ 2 $ 382 $ 2,956 Residential mortgage loans - junior liens 219 0 0 29 248 Home equity lines of credit 347 0 0 12 359 1-4 Family residential construction 207 0 0 29 236 Total residential mortgage 3,418 (73 ) 2 452 3,799 Commercial: Commercial loans secured by real estate 1,939 0 2 446 2,387 Commercial and industrial 981 (2 ) 2 57 1,038 Commercial construction and land 58 0 0 88 146 Loans secured by farmland 106 0 0 0 106 Multi-family (5 or more) residential 675 (595 ) 0 163 243 Agricultural loans 45 0 0 (2 ) 43 Other commercial loans 118 0 0 (2 ) 116 Total commercial 3,922 (597 ) 4 750 4,079 Consumer 122 (67 ) 39 51 145 Unallocated 427 0 0 (29 ) 398 Total Allowance for Loan Losses $ 7,889 $ (737 ) $ 45 $ 1,224 $ 8,421 In the evaluation of the loan portfolio, management determines two r the allowance for loan losses – ( 1 2 In determining the larger loan relationships for detailed assessment under the specific allowance component, the Corporation uses an internal risk rating system. Under the risk rating system, the Corporation classifies problem or potential problem loans as “Special Mention,” “Substandard,” or “Doubtful” on the basis of currently existing facts, conditions and values. Substandard loans include those characterized by the distinct possibility that the Corporation will sustain some loss if the deficiencies are not not ’s close attention, are deemed to be Special Mention. Risk ratings are updated any time that conditions or the situation warrants. Loans not The following tables summarize the aggregate credit quality classification of outstan ding loans by risk rating as of September 30, 2017 December 31, 2016: September 30, 2017 (In Thousands) Special Pass Mention Substandard Doubtful Total Residential Mortgage: Residential mortgage loans - first liens $ 346,545 $ 314 $ 8,372 $ 54 $ 355,285 Residential mortgage loans - junior liens 24,463 107 124 0 24,694 Home equity lines of credit 35,933 62 539 0 36,534 1-4 Family residential construction 25,286 0 0 0 25,286 Total residential mortgage 432,227 483 9,035 54 441,799 Commercial: Commercial loans secured by real estate 149,607 1,394 7,519 0 158,520 Commercial and Industrial 77,045 3,658 2,529 11 83,243 Political subdivisions 54,730 0 0 0 54,730 Commercial construction and land 13,848 10 79 0 13,937 Loans secured by farmland 5,759 587 1,385 13 7,744 Multi-family (5 or more) residential 6,974 0 592 0 7,566 Agricultural loans 5,133 278 726 0 6,137 Other commercial loans 12,310 0 73 0 12,383 Total commercial 325,406 5,927 12,903 24 344,260 Consumer 14,840 0 113 0 14,953 Totals $ 772,473 $ 6,410 $ 22,051 $ 78 $ 801,012 December 31, 2016 (In Thousands) Special Pass Mention Substandard Doubtful Total Residential Mortgage: Residential mortgage loans - first liens $ 324,377 $ 408 $ 9,258 $ 59 $ 334,102 Residential mortgage loans - junior liens 23,274 132 300 0 23,706 Home equity lines of credit 37,360 123 574 0 38,057 1-4 Family residential construction 24,820 0 88 0 24,908 Total residential mortgage 409,831 663 10,220 59 420,773 Commercial: Commercial loans secured by real estate 139,358 3,092 8,018 0 150,468 Commercial and Industrial 79,202 4,180 461 11 83,854 Political subdivisions 38,068 0 0 0 38,068 Commercial construction and land 14,136 70 81 0 14,287 Loans secured by farmland 5,745 129 1,404 16 7,294 Multi-family (5 or more) residential 7,277 0 619 0 7,896 Agricultural loans 3,208 0 790 0 3,998 Other commercial loans 11,401 0 74 0 11,475 Total commercial 298,395 7,471 11,447 27 317,340 Consumer 13,546 0 176 0 13,722 Totals $ 721,772 $ 8,134 $ 21,843 $ 86 $ 751,835 The general component of the allowance for loan losses covers pools of loans including commercial loans not not (described in the following paragraphs). The time period used in determining the average historical net charge-off rate for each loan class is based on management’s evaluation of an appropriate time period that captures an historical loss experience relevant to the current portfolio. Throughout 2016 March 31, 2017, three June 30, 2017 September 30, 2017, five three Qualitative risk factors are evaluated for the impact on each of the three The q ualitative factors used in the general component calculations are designed to address credit risk characteristics associated with each segment. The Corporation’s credit risk associated with all of the segments is significantly impacted by these factors, which include economic conditions within its market area, the Corporation’s lending policies, changes or trends in the portfolio, risk profile, competition, regulatory requirements and other factors. Further, the residential mortgage segment is significantly affected by the values of residential real estate that provide collateral for the loans. The majority of the Corporation’s commercial segment loans (approximately 55% September 30, 2017) Loans are classified as impaired, when, based on current information and events, it is probable that the Corporation will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not ’s prior payment record and the amount of shortfall in relation to the principal and interest owed. Impairment is measured on a loan-by-loan basis for commercial loans, by the fair value of the collateral (if the loan is collateral dependent), by future cash flows discounted at the loan’s effective rate or by the loan’s observable market price. The scope of loans reviewed individually each quarter to determine if they are impaired include all loan relationships greater than $200,000 one not not not ted loan balances as of September 30, 2017 December 31, 2016. $200,000 $100,000 The following tables present a summary of loan balances and the related allowance for loan losses summarized by portfolio segment and class for each impairment method used as of September 30, 2017 December 31, 2016: September 30, 2017 Loans: Allowance for Loan Losses: (In Thousands) Individually Collectively Individually Collectively Evaluated Evaluated Totals Evaluated Evaluated Totals Residential mortgage: Residential mortgage loans - first liens $ 723 $ 354,562 $ 355,285 $ 0 $ 3,165 $ 3,165 Residential mortgage loans - junior liens 62 24,632 24,694 0 265 265 Home equity lines of credit 0 36,534 36,534 0 326 326 1-4 Family residential construction 0 25,286 25,286 0 243 243 Total residential mortgage 785 441,014 441,799 0 3,999 3,999 Commercial: Commercial loans secured by real estate 5,917 152,603 158,520 952 1,685 2,637 Commercial and industrial 476 82,767 83,243 165 839 1,004 Political subdivisions 0 54,730 54,730 0 0 0 Commercial construction and land 0 13,937 13,937 0 149 149 Loans secured by farmland 1,371 6,373 7,744 50 60 110 Multi-family (5 or more) residential 392 7,174 7,566 0 171 171 Agricultural loans 8 6,129 6,137 0 58 58 Other commercial loans 0 12,383 12,383 0 117 117 Total commercial 8,164 336,096 344,260 1,167 3,079 4,246 Consumer 20 14,933 14,953 0 155 155 Unallocated 500 Total $ 8,969 $ 792,043 $ 801,012 $ 1,167 $ 7,233 $ 8,900 December 31, 2016 Loans: Allowance for Loan Losses: (In Thousands) Individually Collectively Individually Collectively Evaluated Evaluated Totals Evaluated Evaluated Totals Residential mortgage: Residential mortgage loans - first liens $ 753 $ 333,349 $ 334,102 $ 0 $ 3,033 $ 3,033 Residential mortgage loans - junior liens 68 23,638 23,706 0 258 258 Home equity lines of credit 0 38,057 38,057 0 350 350 1-4 Family residential construction 0 24,908 24,908 0 249 249 Total residential mortgage 821 419,952 420,773 0 3,890 3,890 Commercial: Commercial loans secured by real estate 8,005 142,463 150,468 528 1,852 2,380 Commercial and industrial 212 83,642 83,854 95 904 999 Political subdivisions 0 38,068 38,068 0 0 0 Commercial construction and land 0 14,287 14,287 0 162 162 Loans secured by farmland 1,394 5,900 7,294 51 59 110 Multi-family (5 or more) residential 392 7,504 7,896 0 241 241 Agricultural loans 13 3,985 3,998 0 40 40 Other commercial loans 0 11,475 11,475 0 115 115 Total commercial 10,016 307,324 317,340 674 3,373 4,047 Consumer 23 13,699 13,722 0 138 138 Unallocated 398 Total $ 10,860 $ 740,975 $ 751,835 $ 674 $ 7,401 $ 8,473 Summary information r elated to impaired loans at September 30, 2017 December 31, 2016 (In Thousands) September 30, 2017 December 31, 2016 Unpaid Unpaid Principal Recorded Related Principal Recorded Related Balance Investment Allowance Balance Investment Allowance With no related allowance recorded: Residential mortgage loans - first liens $ 752 $ 723 $ 0 $ 783 $ 753 $ 0 Residential mortgage loans - junior liens 62 62 0 68 68 0 Commercial loans secured by real estate 3,231 3,231 0 6,975 5,232 0 Commercial and industrial 78 78 0 117 117 0 Loans secured by farmland 874 874 0 890 890 0 Multi-family (5 or more) residential 987 392 0 987 392 0 Agricultural loans 8 8 0 13 13 0 Consumer 20 20 0 23 23 0 Total with no related allowance recorded 6,012 5,388 0 9,856 7,488 0 With a related allowance recorded: Commercial loans secured by real estate 2,686 2,686 952 2,773 2,773 528 Commercial and industrial 398 398 165 95 95 95 Loans secured by farmland 497 497 50 504 504 51 Total with a related allowance recorded 3,581 3,581 1,167 3,372 3,372 674 Total $ 9,593 $ 8,969 $ 1,167 $ 13,228 $ 10,860 $ 674 The average balance of impaired loans and interest income recognized on impaired loans is as follows: Interest Income Recognized on Average Investment in Impaired Loans Impaired Loans on a Cash Basis (In Thousands) 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended Sept. 30, Sept. 30, Sept. 30, Sept. 30, 2017 2016 2017 2016 2017 2016 2017 2016 Residential mortgage: Residential mortgage loans - first lien $ 733 $ 789 $ 738 $ 818 $ 8 $ 11 $ 25 $ 33 Residential mortgage loans - junior lien 64 72 65 72 1 0 3 2 Total residential mortgage 797 861 803 890 9 11 28 35 Commercial: Commercial loans secured by real estate 6,200 7,022 6,377 6,524 36 83 127 274 Commercial and industrial 393 577 317 619 13 7 20 17 Loans secured by farmland 1,378 1,408 1,382 1,413 10 13 32 51 Multi-family (5 or more) residential 392 492 392 541 0 0 0 0 Agricultural loans 10 13 11 14 0 0 1 1 Total commercial 8,373 9,512 8,479 9,111 59 103 180 343 Consumer 25 17 27 16 0 0 0 0 Total $ 9,195 $ 10,390 $ 9,309 $ 10,017 $ 68 $ 114 $ 208 $ 378 Loans are placed on nonaccrual status for all classes of loans when, in the opinion of management, collection of interest is doubtful. Any unpaid interest previously accrued on those loans is reversed from income. Interest income is not , including impaired loans, is recognized only to the extent of interest payments received. Generally, loans are restored to accrual status when the obligation is brought current, has performed in accordance with the contractual terms for a reasonable period of time (generally six no The breakdown by portfolio segment and class of nonaccrual loans and loans past due ninety accruing is as follows: (In Thousands) September 30, 2017 December 31, 2016 Past Due Past Due 90+ Days and 90+ Days and Accruing Nonaccrual Accruing Nonaccrual Residential mortgage: Residential mortgage loans - first liens $ 1,739 $ 4,352 $ 3,022 $ 3,770 Residential mortgage loans - junior liens 4 0 114 0 Home equity lines of credit 208 59 320 11 Total residential mortgage 1,951 4,411 3,456 3,781 Commercial: Commercial loans secured by real estate 126 5,732 2,774 3,080 Commercial and industrial 632 476 286 119 Commercial construction and land 53 0 0 0 Loans secured by farmland 215 1,313 219 1,331 Multi-family (5 or more) residential 0 392 0 392 Agricultural loans 0 8 0 13 Total commercial 1,026 7,921 3,279 4,935 Consumer 2 68 103 20 Totals $ 2,979 $ 12,400 $ 6,838 $ 8,736 The amounts shown in the table immediately above include loans classified as troubled debt restructurings (described in more detail below), if such loans are past due ninety The table below presents a summary of the c ontractual aging of loans as of September 30, 2017 December 31, 2016: As of September 30, 2017 As of December 31, 2016 Current & Current & (In Thousands) Past Due Past Due Past Due Past Due Past Due Past Due Less than 30-89 90+ Less than 30-89 90+ 30 Days Days Days Total 30 Days Days Days Total Residential mortgage: Residential mortgage loans - first liens $ 347,083 $ 4,410 $ 3,792 $ 355,285 $ 321,670 $ 6,695 $ 5,737 $ 334,102 Residential mortgage loans - junior liens 24,409 281 4 24,694 23,268 324 114 23,706 Home equity lines of credit 35,908 369 257 36,534 37,603 134 320 38,057 1-4 Family residential construction 24,597 689 0 25,286 24,567 341 0 24,908 Total residential mortgage 431,997 5,749 4,053 441,799 407,108 7,494 6,171 420,773 Commercial: Commercial loans secured by real estate 155,276 215 3,029 158,520 147,464 82 2,922 150,468 Commercial and industrial 82,407 151 685 83,243 83,364 185 305 83,854 Political subdivisions 54,730 0 0 54,730 38,068 0 0 38,068 Commercial construction and land 13,858 26 53 13,937 14,199 88 0 14,287 Loans secured by farmland 6,726 57 961 7,744 6,181 83 1,030 7,294 Multi-family (5 or more) residential 7,135 39 392 7,566 7,439 65 392 7,896 Agricultural loans 6,052 77 8 6,137 3,981 4 13 3,998 Other commercial loans 12,383 0 0 12,383 11,475 0 0 11,475 Total commercial 338,567 565 5,128 344,260 312,171 507 4,662 317,340 Consumer 14,720 163 70 14,953 13,446 153 123 13,722 Totals $ 785,284 $ 6,477 $ 9,251 $ 801,012 $ 732,725 $ 8,154 $ 10,956 $ 751,835 Nonaccrual loans are included in the contractual aging in the immediately preceding table. A summary of the contractual aging of nonaccrual loans at September 30, 2017 December 31, 2016 Current & (In Thousands) Past Due Past Due Past Due Less than 30-89 90+ 30 Days Days Days Total September 30, 2017 Nonaccrual Totals $ 5,629 $ 499 $ 6,272 $ 12,400 December 31, 2016 Nonaccrual Totals $ 4,199 $ 419 $ 4,118 $ 8,736 Loans whose terms are modified are classified as Troubled Debt Restructurings (TDRs) if the Corporation grants such borrowers concessions, and it is deemed that those borrowers are experiencing financial difficulty. Loans classified as TDRs are designated as impaired. The outstanding balance of loans subject to TDRs, as well as contractual aging information at September 30, 2017 December 31, 2016 Current & (In Thousands) Past Due Past Due Past Due Less than 30-89 90+ 30 Days Days Days Nonaccrual Total September 30, 2017 Totals $ 658 $ 0 $ 0 $ 3,075 $ 3,733 December 31, 2016 Totals $ 5,453 $ 350 $ 0 $ 2,874 $ 8,677 At September 30, 2017 December 31, 2016, no TDR s that occurred during the three nine September 30, 2017 2016 (Balances in Thousands) Three Months Ended Three Months Ended September 30, 2017 September 30, 2016 Post- Post- Number Modification Number Modification of Recorded of Recorded Loans Investment Loans Investment Consumer, Accepted short fall from sale of residential real estate on a mortgage loan and made unsecured loan to same borrower 0 $ 0 1 $ 25 Nine Months Ended Nine Months Ended September 30, 2017 September 30, 2016 Post- Post- Number Modification Number Modification of Recorded of Recorded Loans Investment Loans Investment Residential mortgage, Extended maturity with interest rate reduction 0 $ 0 1 $ 102 Commercial and industrial, Extended maturity with interest rate increase 0 0 1 5 Consumer, Accepted short fall from sale of residential real estate on a mortgage loan and made unsecured loan to same borrower 0 0 1 25 Total 0 $ 0 3 $ 132 There were no ts on loans for which modifications considered to be TDRs were entered into within the previous 12 three September 30, 2017 2016. nine September 30 2017 2016, 12 (Balances in Thousands) Nine Months Ended Nine Months Ended September 30, 2017 September 30, 2016 Number Number of Recorded of Recorded Loans Investment Loans Investment Residential mortgage - first liens 0 $ 0 1 $ 242 Residential mortgage - junior liens 0 0 1 30 Commercial and industrial 0 0 1 5 Consumer 0 0 1 28 Total 0 $ 0 4 $ 305 The carrying amount of foreclosed residential real estate properties held as a result of obtaining physical possession (included in Foreclosed assets held for sale in the unaudited Consolidated Balance Sheet) is as follows: (In Thousands) Sept. 30, Dec. 31, 2017 2016 Foreclosed residential real estate $ 640 $ 1,102 The recorded investment of consumer mortgage loans secured by residential real properties for which formal foreclosure proceedings were in process is as follows: (In Thousands) Sept. 30, Dec. 31, 2017 2016 Residential real estate in process of foreclosure $ 1,871 $ 2,738

Note 8 - Borrowed Funds

Note 8 - Borrowed Funds	9 Months Ended
	Sep. 30, 2017
Notes to Financial Statements
Debt Disclosure [Text Block]	8. Short-term borrowings include the following: (In Thousands) Sept. 30, Dec. 31, 2017 2016 FHLB-Pittsburgh borrowings $ 3,000 $ 21,000 Customer repurchase agreements 4,739 5,175 Total short-term borrowings $ 7,739 $ 26,175 The FHLB-Pittsburgh loan facilities are collateralized by qualifying loans secured by real estate with a book value totaling $495,047,000 September 30, 2017 $471,454,000 December 31, 2016. $3,534,000 September 30, 2017 $4,296,000 December 31, 2016. At September 30, 2017, $3,000,000 1.23%, June 2018. December 31, 2016, $21,000,000 0.74%. The Corporation engages in repurchase agreements with certain commercial customers. These agreements provide that the Corporation sells specified investment securities to the customers on an overnight basis and repurchases them on the following business day. The weighted average interest rate paid by the Corporation on customer repurchase agreements was 0.10% September 30, 2017 December 31, 2016. Long-term borrowings are as follows: (In Thousands) Sept. 30, Dec. 31, 2017 2016 FHLB-Pittsburgh borrowings $ 4,256 $ 11,454 Repurchase agreement 27,000 27,000 Total long-term borrowings $ 31,256 $ 38,454 Long-term borrowings from FHLB-Pittsburgh are as follows: (In Thousands) Sept. 30, Dec. 31, 2017 2016 Loan matured in June 2017 with a rate of 6.83% $ 0 $ 4 Loan matur ed in September 2017 with a rate of 3.81% 0 10,000 Loan maturing in December 2018 with a rate of 1.35% 3,000 0 Loan maturing in April 2020 with a rate of 4.79% 510 646 Loan maturing in June 2025 with a rate of 4.91% 746 804 Total long-term FHLB-Pittsburgh borrowings $ 4,256 $ 11,454 The repurchase agreement included in long-term borrowings has an interest rate of 3.595% December 2017. The “Repurchase Date,” as defined in the Master Repurchase Agreement between the Corporation and the broker-dealer, occurred quarterly on or about the 20 th March, June, September December December 20, 2017. Securities sold under repurchase agreements were delivered to the broker-dealer who is the counter-party to the transactions. The broker-dealer may provides that the Agreement constitutes a “netting contract,” as defined; however, the Corporation and the broker-dealer have no one no The carrying value of t he underlying securities was $30,055,000 September 30, 2017 $31,494,000 December 31, 2016, (In Thousands) Sept. 3 0 , Dec . 31, 2017 2016 Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies: Residential pass-through securities $ 14,120 $ 18,181 Residential collateralized mortgage obligations 16,935 13,313 Total $ 30,055 $ 31,494

Note 9 - Defined Benefit Plans

Note 9 - Defined Benefit Plans	9 Months Ended
	Sep. 30, 2017
Notes to Financial Statements
Pension and Other Postretirement Benefits Disclosure [Text Block]	9 . DEFINED BENEFIT PLANS The Corporation sponsors a defined benefit health care plan that provides postretirement medical benefits and life insurance to employees who meet certain age and length of service requirements. Full-time employees no not he liability balance at September 30, 2017 December 31, 2016, not December 31 In an acquisition in 2007, December 31, 2002, December 31 measurement date for this plan. The components of net periodic benefit costs from these defined benefit plans are as follows: Defined Benefit Plans (In Thousands) Pension Postretirement Nine Months Ended Nine Months Ended Sept. 30, Sept. 30, 2017 2016 2017 2016 Service cost $ 0 $ 0 $ 27 $ 27 Interest cost 18 20 43 47 Expected return on plan assets (23 ) (20 ) 0 0 Amortization of prior service cost 0 0 (23 ) (23 ) Recognized net actuarial loss 5 8 0 0 Net periodic benefit cost $ 0 $ 8 $ 47 $ 51 Defined Benefit Plans (In Thousands) Pension Postretirement Three Months Ended Three Months Ended Sept. 30, Sept. 30, 2017 2016 2017 2016 Service cost $ 0 $ 0 $ 9 $ 9 Interest cost 6 7 15 16 Expected return on plan assets (8 ) (7 ) 0 0 Amortization of prior service cost 0 0 (8 ) (8 ) Recognized net actuarial loss 2 3 0 0 Net periodic benefit cost $ 0 $ 3 $ 16 $ 17 In the first nine 2017, $36,000, $62,000 2017 No 2017, may

Note 10 - Stock-based Compensat

Note 10 - Stock-based Compensation Plans	9 Months Ended
	Sep. 30, 2017
Notes to Financial Statements
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	10 . STOCK-BASED COMPENSATION PLANS The Corporation has a Stock Incentive Plan for a selected group of officers and an Independent Directors Stock Incentive Plan. In the first 2017, 22,312 8,470 2017 three one 14,897 2017 one Compensation cost related to restricted stock is recognized based on the market price of the stock at the grant date over the vesting period. Management has estimated restricte d stock expense in the first nine 2017 2016 2017 not A nnual stock-based compensation for the year ending December 31, 2017 $632,000. 2016 2017 $123,000. $153,000 third 2017 $475,000 nine September 30, 2017. $155,000 third 2016 $480,000 nine September 30, 2016.

Note 11 - Income Taxes

Note 11 - Income Taxes	9 Months Ended
	Sep. 30, 2017
Notes to Financial Statements
Income Tax Disclosure [Text Block]	1 1 . INCOME TAXES The net deferred tax asset at September 30, 2017 December 31, 2016 September 30, December 31, (In Thousands) 2017 2016 Deferred tax assets: Unrealized holding losses on securities $ 0 $ 512 Allowance for loan losses 3,150 2,998 Other deferred tax assets 2,582 2,658 Total deferred tax assets 5,732 6,168 Deferred tax liabilities: Unrealized holding gains on securities 122 0 Defined benefit plans - ASC 835 79 27 Bank premises and equipment 1,101 913 Core deposit intangibles 5 6 Other deferred tax liabilities 106 105 Total deferred tax liabilities 1,413 1,051 Deferred tax asset, net $ 4,319 $ 5,117 The provision for income tax for the three nine September 30, 2017 2016 Three Months Ended Nine Months Ended ( Dollars In thousands) September 30, September 30, 2017 2016 2017 2016 Income before income tax provision $ 5,198 $ 5,538 $ 15,111 $ 15,378 Income tax provision 1,262 1,451 3,620 3,847 Effective tax rate 24.28 % 26.20 % 23.96 % 25.02 % The effective tax rate for each period presented differs from the statutory rate of 35% The Corporation has investments in three ’s expected return from these investments is based on the receipt of tax credits and tax benefits from deductions of operating losses. The Corporation uses the effective yield method to account for these investments, with the benefits recognized as a reduction of the provision for income taxes. For two three 2013, 2013 2016 2022. $634,000 September 30, 2017 $713,000 December 31, 2016 ( December 31, 2017, $157,000 $73,000. $18,000 third 2017 $55,000 nine September 30, 2017, $19,000 third 2016 $57,000 nine September 30, 2016. T he Corporation has no no 2014.

Note 12 - Contingencies

Note 12 - Contingencies	9 Months Ended
	Sep. 30, 2017
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	1 2 . CONTINGENCIES In the normal course of business, the Corporation may ’s opinion, the Corporation’s financial position and results of operations would not

Note 13 - Recent Accounting Pro

Note 13 - Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2017
Notes to Financial Statements
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]	13. The FASB issues Accounting Standards Updates (ASUs) to the FASB ASC. This section provides a summary description of recent ASUs that have significant implications (elected or required) within the consolidated financial statements, or that management expects may In May 2014, 2014 09, five d recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Several additional ASUs have been issued subsequent to ASU 2014 09 first 2018 December 31, 2018. 70% 2014 09. not 2014 09 first 2018. In January 2016, 2016 01, This makes significant changes in U.S. GAAP related to certain aspects of recognition, measurement, presentation and disclosure of financial instruments. The changes provided for in this Update that are applicable to the Corporation are as follows: ( 1 may not 2 3 4 5 September 30, 2017 December 31, 2016, no 6 7 first 2018. not 2016 01 not first 2018. In February 2016, 2016 02, 842 842 12 not 842 not 842 ’s leasing activities. In transition, Topic 842 842 first 2019. In March 2016, No. 2016 07, – Equity Method and Joint Ventures. This ASU eliminates the requirement that when an investment qualifies for the equity method as a result of an increase in the level of ownership interest or influence, an investor must adjust the investment, results of operations and retained earnings retroactively as if the equity method had been in effect during all previous periods the investment had been held. The ASU requires the equity method investor to add the cost of acquiring an additional interest in the investee to the basis of the investor’s previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for the equity method. The ASU further requires that an entity that has an available-for-sale equity security that becomes qualified for the equity method recognize through earnings the unrealized gain or loss in accumulated other comprehensive income at the date the investment becomes qualified for use of the equity method. The amendments in this Update were effective for the Corporation for annual and interim periods beginning in the first 2017. 2017 not In March 2016, No. 2016 09, – Stock Compensation. This ASU changes several aspects of accounting for share-based payment transactions, and includes some changes that apply only to nonpublic companies. This Update includes amendments that currently apply, or may 1 2 3 4 5 first 2017. 2017 not In June 2016, 2016 13, 326 ’s accounting for credit losses related to loans receivable and investment securities. A summary of significant provisions of this ASU is as follows: ● The ASU requires that a financial asset (or a group of financial assets) measured at amortized cost basis be presented, net of a valuation allowance for credit losses, at an amount expected to be collected on the financial asset(s), and that the income statement include the measurement of credit losses for newly recognized financial assets as well as changes in expected losses on previously recognized financial assets. The provisions of this ASU require measurement of expected credit losses based on relevant information including past events, historical experience, current conditions, and reasonable and supportive forecasts that affect the collectability of the asset. The provisions of this ASU differ from current U.S. GAAP in that current U.S. GAAP generally delays recognition of the full amount of credit losses until the loss is probable of occurring. ● The amendments in the Update retain many of the disclosure requirements related to credit quality in current U.S. GAAP, updated to reflect the change from an incurred loss methodology to an expected credit loss methodology. ● In addition, the Update requires that disclosure of credit quality indicators in relation to the amortized cost of financing receivables, a current requirement, be further disaggregated by year of origination. ● This ASU requires that credit losses on available-for-sale debt securities be presented as an allowance rather than as a write-down, and limits the amount of the allowance for credit losses to the amount by which the fair value is below amortized cost. For purchased available-for-sale securities with a more-than-insignificant amount of credit deterioration since origination, the ASU requires an allowance be determined in a manner similar to other available-for-sale debt securities; however, the initial allowance would be added to the purchase price, with only subsequent changes in the allowance recorded in credit loss expense, and interest income recognized at the effective rate excluding the discount embedded in the purchase price related to estimated credit losses at acquisition. ● This ASU will be effective for the Corporation for interim and annual periods beginning in the first 2020. first 2019. 326 The Corporation is in the early stages of evaluating the potential impact of adopting this amendment. In June 2016, 2016 15, 230 – Classification of Certain Cash Receipts and Cash Payments. This Update provides clarification regarding eight first 2018. no In January 2017, 2017 04, – Goodwill and Other (Topic 350 2 not may first 2020. In March 2017, B issued ASU 2017 08 , Receivables – Nonrefundable Fees and Other Costs (Subtopic 310 20 first 2019. not

Note 2 - Per Share Data (Tables

Note 2 - Per Share Data (Tables)	9 Months Ended
	Sep. 30, 2017
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	3 Months Ended 9 Months Ended Sept. 30, Sept. 30, Sept. 30, Sept. 30, 2017 2016 2017 2016 Basic Net income $ 3,936,000 $ 4,087,000 $ 11,491,000 $ 11,531,000 Less: Dividends and undistributed earnings allocated to participating securities (20,000 ) (22,000 ) (59,000 ) (63,000 ) Net income attributable to common shares $ 3,916,000 $ 4,065,000 $ 11,432,000 $ 11,468,000 Basic weighted-average common shares outstanding 12,124,854 12,014,267 12,105,673 12,032,619 Basic earnings per common share (a) $ 0.32 $ 0.34 $ 0.94 $ 0.95 Diluted Net income attributable to common shares $ 3,916,000 $ 4,065,000 $ 11,432,000 $ 11,468,000 Basic weighted-average common shares outstanding 12,124,854 12,014,267 12,105,673 12,032,619 Dilutive effect of potential common stock arising from stock options 37,409 29,799 40,624 24,020 Diluted weighted-average common shares outstanding 12,162,263 12,044,066 12,146,297 12,056,639 Diluted earnings per common share (a) $ 0.32 $ 0.34 $ 0.94 $ 0.95

Note 3 - Comprehensive Income (

Note 3 - Comprehensive Income (Tables)	9 Months Ended
	Sep. 30, 2017
Notes Tables
Comprehensive Income (Loss) [Table Text Block]	(In Thousands) Before-Tax Income Tax Net-of-Tax Amount Effect Amount Nine Months Ended September 30, 2017 Unrealized gains on available-for-sale securities: Unrealized holding gains on available-for-sale securities $ 2,067 $ (723 ) $ 1,344 Reclassification adjustment for (gains) realized in income (257 ) 89 (168 ) Other comprehensive income on available-for-sale securities 1,810 (634 ) 1,176 Unfunded pension and postretirement obligations: Changes from plan amendments and actuarial gains and losses included in other comprehensive income 166 (58 ) 108 Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost (18 ) 6 (12 ) Other comprehensive income on unfunded retirement obligations 148 (52 ) 96 Total other comprehensive income $ 1,958 $ (686 ) $ 1,272 (In Thousands) Before-Tax Income Tax Net-of-Tax Amount Effect Amount Nine Months Ended September 30, 2016 Unrealized gains on available-for-sale securities: Unrealized holding gains on available-for-sale securities $ 5,544 $ (1,941 ) $ 3,603 Reclassification adjustment for (gains) realized in income (1,089 ) 381 (708 ) Other comprehensive income on available-for-sale securities 4,455 (1,560 ) 2,895 Unfunded pension and postretirement obligations: Changes from plan amendments and actuarial gains and losses included in other comprehensive income 26 (9 ) 17 Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost (15 ) 5 (10 ) Other comprehensive income on unfunded retirement obligations 11 (4 ) 7 Total other comprehensive income $ 4,466 $ (1,564 ) $ 2,902 (In Thousands) Before-Tax Income Tax Net-of-Tax Amount Effect Amount Three Months Ended September 30, 2017 Unrealized losses on available-for-sale securities: Unrealized holding losses on available-for-sale securities $ (213 ) $ 75 $ (138 ) Reclassification adjustment for (gains) realized in income (5 ) 1 (4 ) Other comprehensive loss on available-for-sale securities (218 ) 76 (142 ) Unfunded pension and postretirement obligations: Changes from plan amendments and actuarial gains and losses included in other comprehensive income 0 0 0 Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost (6 ) 2 (4 ) Other comprehensive loss on unfunded retirement obligations (6 ) 2 (4 ) Total other comprehensive loss $ (224 ) $ 78 $ (146 ) (In Thousands) Before-Tax Income Tax Net-of-Tax Amount Effect Amount Three Months Ended September 30, 2016 Unrealized losses on available-for-sale securities: Unrealized holding losses on available-for-sale securities $ (1,661 ) $ 580 $ (1,081 ) Reclassification adjustment for (gains) realized in income (584 ) 204 (380 ) Other comprehensive loss on available-for-sale securities (2,245 ) 784 (1,461 ) Unfunded pension and postretirement obligations: Changes from plan amendments and actuarial gains and losses included in other comprehensive income 0 0 0 Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost (5 ) 2 (3 ) Other comprehensive loss on unfunded retirement obligations (5 ) 2 (3 ) Total other comprehensive loss $ (2,250 ) $ 786 $ (1,464 )
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	(In Thousands) Unrealized Accumulated Holding Gains Unfunded Other (Losses) Retirement Comprehensive on Securities Obligations Income Nine Months Ended September 30, 2017 Balance, beginning of period $ (949 ) $ 51 $ (898 ) Change during nine months ended September 30, 2017 1,176 96 1,272 Balance, end of period $ 227 $ 147 $ 374 Nine Months Ended September 30, 2016 Balance, beginning of period $ 2,493 $ 35 $ 2,528 Change during nine months ended September 30, 2016 2,895 7 2,902 Balance, end of period $ 5,388 $ 42 $ 5,430 Three Months Ended September 30, 2017 Balance, beginning of period $ 369 $ 151 $ 520 Change during three months ended September 30, 2017 (142 ) (4 ) (146 ) Balance, end of period $ 227 $ 147 $ 374 Three Months Ended September 30, 2016 Balance, beginning of period $ 6,849 $ 45 $ 6,894 Change during three months ended September 30, 2016 (1,461 ) (3 ) (1,464 ) Balance, end of period $ 5,388 $ 42 $ 5,430
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]	For the Nine Months Ended September 30, 2017 (In Thousands) Reclassified from Details about Accumulated Other Accumulated Other Affected Line Item in the Consolidated Comprehensive Income Components Comprehensive Income Statements of Income Unrealized gains and losses on available-for-sale Securities $ (257 ) Realized gains on available-for-sale securities, net 89 Income tax provision (168 ) Net of tax Amortization of defined benefit pension and postretirement items: Prior service cost (23 ) Pensions and other employee benefits Actuarial loss 5 Pensions and other employee benefits (18 ) Total before tax 6 Income tax provision (12 ) Net of tax Total reclassifications for the period $ (180 ) For the Nine Months Ended September 30, 2016 (In Thousands) Reclassified from Details about Accumulated Other Accumulated Other Affected Line Item in the Consolidated Comprehensive Income Components Comprehensive Income Statements of Income Unrealized gains and losses on available-for-sale securities $ (1,089 ) Realized gains on available-for-sale securities, net 381 Income tax provision (708 ) Net of tax Amortization of defined benefit pension and postretirement items: Prior service cost (23 ) Pensions and other employee benefits Actuarial loss 8 Pensions and other employee benefits (15 ) Total before tax 5 Income tax provision (10 ) Net of tax Total reclassifications for the period $ (718 ) For the Three Months Ended September 30, 2017 (In Thousands) Reclassified from Details about Accumulated Other Accumulated Other Affected Line Item in the Consolidated Comprehensive Income Components Comprehensive Income Statements of Income Unrealized gains and losses on available-for-sale securities $ (5 ) Realized gains on available-for-sale securities, net 1 Income tax provision (4 ) Net of tax Amortization of defined benefit pension and postretirement items: Prior service cost (8 ) Pensions and other employee benefits Actuarial loss 2 Pensions and other employee benefits (6 ) Total before tax 2 Income tax provision (4 ) Net of tax Total reclassifications for the period $ (8 ) For the Three Months Ended September 30, 2016 (In Thousands) Reclassified from Details about Accumulated Other Accumulated Other Affected Line Item in the Consolidated Comprehensive Income Components Comprehensive Income Statements of Income Unrealized gains and losses on available-for-sale Securities $ (584 ) Realized gains on available-for-sale securities, net 204 Income tax provision (380 ) Net of tax Amortization of defined benefit pension and postretirement items: Prior service cost (8 ) Pensions and other employee benefits Actuarial loss 3 Pensions and other employee benefits (5 ) Total before tax 2 Income tax provision (3 ) Net of tax Total reclassifications for the period $ (383 )

Note 4 - Cash and Due From Ba24

Note 4 - Cash and Due From Banks (Tables)	9 Months Ended
	Sep. 30, 2017
Notes Tables
Schedule of Cash and Cash Equivalents [Table Text Block]	(In thousands) Sept. 30, Dec. 31, 2017 2016 Cash and cash equivalents $ 29,610 $ 28,621 Certificates of deposit 3,240 3,488 Total cash and due from banks $ 32,850 $ 32,109

Note 5 - Fair Value Measureme25

Note 5 - Fair Value Measurements and Fair Values of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2017
Notes Tables
Fair Value, by Balance Sheet Grouping [Table Text Block]	September 3 0 , 201 7 Quoted Prices Other in Active Observable Unobservable Total Markets Inputs Inputs Fair (In Thousands) (Level 1) (Level 2) (Level 3) Value Recurring fair value measurements AVAILABLE-FOR-SALE SECURITIES: Obligations of U.S. Government agencies $ 0 $ 7,946 $ 0 $ 7,946 Obligations of states and political subdivisions: Tax-exempt 0 110,557 0 110,557 Taxable 0 27,816 0 27,816 Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies: Residential pass-through securities 0 54,917 0 54,917 Residential collateralized mortgage obligations 0 129,243 0 129,243 Commercial mortgage-backed securities 0 33,629 0 33,629 Total debt securities 0 364,108 0 364,108 Marketable equity securities 978 0 0 978 Total available-for-sale securities 978 364,108 0 365,086 Servicing rights 0 0 1,277 1,277 Total recurring fair value measurements $ 978 $ 364,108 $ 1,277 $ 366,363 Nonrecurring fair value measurements Impaired loans with a valuation allowance $ 0 $ 0 $ 3,258 $ 3,258 Valuation allowance 0 0 (1,077 ) (1,077 ) Impaired loans, net 0 0 2,181 2,181 Foreclosed assets held for sale 0 0 1,650 1,650 Total nonrecurring fair value measurements $ 0 $ 0 $ 3,831 $ 3,831 December 31, 201 6 Quoted Prices Other in Active Observable Unobservable Total Markets Inputs Inputs Fair (In Thousands) (Level 1) (Level 2) (Level 3) Value Recurring fair value measurements AVAILABLE-FOR-SALE SECURITIES: Obligations of U.S. Government agencies $ 0 $ 9,541 $ 0 $ 9,541 Obligations of states and political subdivisions: Tax-exempt 0 119,037 0 119,037 Taxable 0 30,297 0 30,297 Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies: Residential pass-through securities 0 58,404 0 58,404 Residential collateralized mortgage obligations 0 146,608 0 146,608 Commercial mortgage-Backed securities 0 30,219 0 30,219 Total debt securities 0 394,106 0 394,106 Marketable equity securities 971 0 0 971 Total available-for-sale securities 971 394,106 0 395,077 Servicing rights 0 0 1,262 1,262 Total recurring fair value measurements $ 971 $ 394,106 $ 1,262 $ 396,339 Nonrecurring fair value measurements Impaired loans with a valuation allowance $ 0 $ 0 $ 3,372 $ 3,372 Valuation allowance 0 0 (674 ) (674 ) Impaired loans, net 0 0 2,698 2,698 Foreclosed assets held for sale 0 0 2,180 2,180 Total nonrecurring fair value measurements $ 0 $ 0 $ 4,878 $ 4,878
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	(In Thousands) Three Months Ended Nine Months Ended Sept. 30, 2017 Sept. 30, 2016 Sept. 30, 2017 Sept. 30, 2016 Servicing rights balance, beginning of period $ 1,279 $ 1,224 $ 1,262 $ 1,296 Issuances of servicing rights 65 52 160 159 Unrealized losses included in earnings (67 ) (68 ) (145 ) (247 ) Servicing rights balance, end of period $ 1,277 $ 1,208 $ 1,277 $ 1,208
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]	(In Thousands) Valuation September 3 0 , 201 7 December 31, 2016 Method(s) Carrying Fair Carrying Fair Used Amount Value Amount Value Financial assets: Cash and cash equivalents Level 1 $ 29,610 $ 29,610 $ 28,621 $ 28,621 Certificates of deposit Level 2 3,240 3,239 3,488 3,481 Available-for-sale securities See Above 365,086 365,086 395,077 395,077 Restricted equity securities (included in Other Assets) Level 2 3,664 3,664 4,426 4,426 Loans held for sale Level 1 437 437 142 142 Loans, net Level 3 792,112 777,413 743,362 725,787 Accrued interest receivable Level 2 4,027 4,027 3,963 3,963 Servicing rights Level 3 1,277 1,277 1,262 1,262 Financial liabilities: Deposits with no stated maturity Level 2 801,942 801,942 771,625 771,625 Time deposits Level 2 219,683 220,017 212,218 212,274 Short-term borrowings Level 2 7,739 7,626 26,175 26,024 Long-term borrowings Level 2 31,256 31,460 38,454 39,062 Accrued interest payable Level 2 39 39 65 65
Fair Value, Measurements, Nonrecurring [Member]
Notes Tables
Fair Value Inputs, Assets, Quantitative Information [Table Text Block]	(In Thousands, Except Weighted- Percentages) Valuation Average Balance at Allowance at Fair Value at Valuation Unobservable Discount at Asset 9 /30/17 9 /30/17 9 /30/17 Technique Inputs 9 /30/17 Impaired loans: Commercial: Commercial loans secured by real estate $ 2,686 $ 952 $ 1,734 Sales comparison Discount to appraised value 16 % Commercial and industrial 75 75 0 Sales comparison Discount to appraised value 100 % Loans secured by farmland 497 50 447 Sales comparison Discount to appraised value 53 % Total impaired loans $ 3,258 $ 1,077 $ 2,181 Foreclosed assets held for sale - real estate: Residential (1-4 family) $ 640 $ 0 $ 640 Sales comparison Discount to appraised value 35 % Land 646 0 646 Sales comparison Discount to appraised value 34 % Commercial real estate 364 0 364 Sales comparison Discount to appraised value 63 % Total foreclosed assets held for sale $ 1,650 $ 0 $ 1,650 (In Thousands, Except Weighted- Percentages) Valuation Average Balance at Allowance at Fair Value at Valuation Unobservable Discount at Asset 12/31/16 12/31/16 12/31/16 Technique Inputs 12/31/16 Impaired loans: Commercial: Commercial loans secured by real estate $ 2,773 $ 528 $ 2,245 Sales comparison Discount to appraised value 7 % Commercial and industrial 95 95 0 Sales comparison Discount to appraised value 100 % Loans secured by farmland 504 51 453 Sales comparison Discount to appraised value 55 % Total impaired loans $ 3,372 $ 674 $ 2,698 Foreclosed assets held for sale - real estate: Residential (1-4 family) $ 1,102 $ 0 $ 1,102 Sales comparison Discount to appraised value 35 % Land 650 0 650 Sales comparison Discount to appraised value 33 % Commercial real estate 428 0 428 Sales comparison Discount to appraised value 50 % Total foreclosed assets held for sale $ 2,180 $ 0 $ 2,180
Fair Value, Measurements, Recurring [Member]
Notes Tables
Fair Value Inputs, Assets, Quantitative Information [Table Text Block]	Fair Value at 9 /3 0 /1 7 Valuation Unobservable Method or Value As of Asset (In Thousands) Technique Input(s) 9 /3 0 /17 Servicing rights $ 1,277 Discounted cash flow Discount rate 13.00 % Rate used through modeling period Loan prepayment speeds 147.00 % Weighted-average PSA Servicing fees 0.25 % of loan balances 4.00 % of payments are late 5.00 % late fees assessed $ 1.94 Miscellaneous fees per account per month Servicing costs $ 6.00 Monthly servicing cost per account $ 24.00 Additional monthly servicing cost per loan on loans more than 30 days delinquent 1.50 % of loans more than 30 days delinquent 3.00 % annual increase in servicing costs Fair Value at 12/31/1 6 Valuation Unobservable Method or Value As of Asset (In Thousands) Technique Input(s) 12/31/1 6 Servicing rights $ 1,262 Discounted cash flow Discount rate 13.00 % Rate used through modeling period Loan prepayment speeds 138.00 % Weighted-average PSA Servicing fees 0.25 % of loan balances 4.00 % of payments are late 5.00 % late fees assessed $ 1.94 Miscellaneous fees per account per month Servicing costs $ 6.00 Monthly servicing cost per account $ 24.00 Additional monthly servicing cost per loan on loans more than 30 days delinquent 1.50 % of loans more than 30 days delinquent 3.00 % annual increase in servicing costs

Note 6 - Securities (Tables)

Note 6 - Securities (Tables)	9 Months Ended
	Sep. 30, 2017
Notes Tables
Available-for-sale Securities [Table Text Block]	September 3 0 , 201 7 Gross Gross Unrealized Unrealized Amortized Holding Holding Fair (In Thousands) Cost Gains Losses Value Obligations of U.S. Government agencies $ 8,028 $ 0 $ (82 ) $ 7,946 Obligations of states and political subdivisions: Tax-exempt 108,521 2,678 (642 ) 110,557 Taxable 27,538 316 (38 ) 27,816 Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies: Residential pass-through securities 55,247 113 (443 ) 54,917 Residential collateralized mortgage obligations 130,375 323 (1,455 ) 129,243 Commercial mortgage-backed securities 34,028 31 (430 ) 33,629 Total debt securities 363,737 3,461 (3,090 ) 364,108 Marketable equity securities 1,000 0 (22 ) 978 Total $ 364,737 $ 3,461 $ (3,112 ) $ 365,086 December 31, 2016 Gross Gross Unrealized Unrealized Amortized Holding Holding Fair (In Thousands) Cost Gains Losses Value Obligations of U.S. Government agencies $ 9,671 $ 5 $ (135 ) $ 9,541 Obligations of states and political subdivisions: Tax-exempt 118,140 2,592 (1,695 ) 119,037 Taxable 30,073 303 (79 ) 30,297 Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies: Residential pass-through securities 58,922 306 (824 ) 58,404 Residential collateralized mortgage obligations 147,915 408 (1,715 ) 146,608 Commercial mortgage-backed securities 30,817 0 (598 ) 30,219 Total debt securities 395,538 3,614 (5,046 ) 394,106 Marketable equity securities 1,000 0 (29 ) 971 Total $ 396,538 $ 3,614 $ (5,075 ) $ 395,077
Schedule of Unrealized Loss on Investments [Table Text Block]	September 3 0 , 2017 Less Than 12 Months 12 Months or More Total (In Thousands) Fair Unrealized Fair Unrealized Fair Unrealized Value Losses Value Losses Value Losses Obligations of U.S. Government agencies $ 7,946 $ (82 ) $ 0 $ 0 $ 7,946 $ (82 ) Obligations of states and political subdivisions: Tax-exempt 21,028 (238 ) 14,890 (404 ) 35,918 (642 ) Taxable 7,073 (38 ) 0 0 7,073 (38 ) Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies: Residential pass-through securities 47,572 (443 ) 0 0 47,572 (443 ) Residential collateralized mortgage obligations 64,948 (747 ) 25,718 (708 ) 90,666 (1,455 ) Commercial mortgage-backed securities 24,890 (275 ) 4,760 (155 ) 29,650 (430 ) Total debt securities 173,457 (1,823 ) 45,368 (1,267 ) 218,825 (3,090 ) Marketable equity securities 1,000 (22 ) 0 0 1,000 (22 ) Total temporarily impaired available-for-sale securities $ 174,457 $ (1,845 ) $ 45,368 $ (1,267 ) $ 219,825 $ (3,112 ) December 31, 2016 Less Than 12 Months 12 Months or More Total (In Thousands) Fair Unrealized Fair Unrealized Fair Unrealized Value Losses Value Losses Value Losses Obligations of U.S. Government agencies $ 7,899 $ (135 ) $ 0 $ 0 $ 7,899 $ (135 ) Obligations of states and political subdivisions: Tax-exempt 54,479 (1,676 ) 1,278 (19 ) 55,757 (1,695 ) Taxable 9,594 (79 ) 0 0 9,594 (79 ) Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies: Residential pass-through securities 48,674 (824 ) 0 0 48,674 (824 ) Residential collateralized mortgage obligations 85,198 (1,124 ) 16,073 (591 ) 101,271 (1,715 ) Commercial mortgage-backed securities 30,219 (598 ) 0 0 30,219 (598 ) Total debt securities 236,063 (4,436 ) 17,351 (610 ) 253,414 (5,046 ) Marketable equity securities 1,000 (29 ) 0 0 1,000 (29 ) Total temporarily impaired available-for-sale securities $ 237,063 $ (4,465 ) $ 17,351 $ (610 ) $ 254,414 $ (5,075 )
Realized Gain (Loss) on Investments [Table Text Block]	(In Thousands) 3 Months Ended 9 Months Ended Sept. 30, Sept. 30, Sept. 30, Sept. 30, 2017 2016 2017 2016 Gross realized gains from sales $ 47 $ 584 $ 315 $ 1,090 Gross realized losses from sales (42 ) 0 (58 ) (1 ) Net realized gains $ 5 $ 584 $ 257 $ 1,089
Investments Classified by Contractual Maturity Date [Table Text Block]	Amortized Fair (In Thousands) Cost Value Due in one year or less $ 12,478 $ 12,491 Due from one year through five years 71,673 73,134 Due from five years through ten years 36,361 36,517 Due after ten years 23,575 24,177 Sub-total 144,087 146,319 Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies: Residential pass-through securities 55,247 54,917 Residential collateralized mortgage obligations 130,375 129,243 Commercial mortgage-backed securities 34,028 33,629 Total $ 363,737 $ 364,108

Note 7 - Loans (Tables)

Note 7 - Loans (Tables)	9 Months Ended
	Sep. 30, 2017
Notes Tables
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	Summary of Loans by Type (In Thousands) Sept. 30, Dec. 31, 2017 2016 Residential mortgage: Residential mortgage loans - first liens $ 355,285 $ 334,102 Residential mortgage loans - junior liens 24,694 23,706 Home equity lines of credit 36,534 38,057 1-4 Family residential construction 25,286 24,908 Total residential mortgage 441,799 420,773 Commercial: Commercial loans secured by real estate 158,520 150,468 Commercial and industrial 83,243 83,854 Political subdivisions 54,730 38,068 Commercial construction and land 13,937 14,287 Loans secured by farmland 7,744 7,294 Multi-family (5 or more) residential 7,566 7,896 Agricultural loans 6,137 3,998 Other commercial loans 12,383 11,475 Total commercial 344,260 317,340 Consumer 14,953 13,722 Total 801,012 751,835 Less: allowance for loan losses (8,900 ) (8,473 ) Loans, net $ 792,112 $ 743,362
Allowance for Credit Losses on Financing Receivables [Table Text Block]	Three Months Ended September 30, 2017 June 30, Sept. 30, (In Thousands) 2017 Balance Charge-offs Recoveries Provision (Credit) 2017 Balance Allowance for Loan Losses: Residential mortgage: Residential mortgage loans - first liens $ 3,052 $ 0 $ 1 $ 112 $ 3,165 Residential mortgage loans - junior liens 261 0 1 3 265 Home equity lines of credit 332 0 0 (6 ) 326 1-4 Family residential construction 251 0 0 (8 ) 243 Total residential mortgage 3,896 0 2 101 3,999 Commercial: Commercial loans secured by real estate 2,610 0 0 27 2,637 Commercial and industrial 910 0 1 93 1,004 Commercial construction and land 162 0 0 (13 ) 149 Loans secured by farmland 107 0 0 3 110 Multi-family (5 or more) residential 169 0 0 2 171 Agricultural loans 42 0 0 16 58 Other commercial loans 105 0 0 12 117 Total commercial 4,105 0 1 140 4,246 Consumer 134 (67 ) 7 81 155 Unallocated 500 0 0 0 500 Total Allowance for Loan Losses $ 8,635 $ (67 ) $ 10 $ 322 $ 8,900 Three Months Ended September 30, 2016 June 30, Sept. 30, (In Thousands) 2016 Balance Charge-offs Recoveries Provision (Credit) 2016 Balance Allowance for Loan Losses: Residential mortgage: Residential mortgage loans - first liens $ 2,830 $ (31 ) $ 2 $ 155 $ 2,956 Residential mortgage loans - junior liens 239 0 0 9 248 Home equity lines of credit 359 0 0 0 359 1-4 Family residential construction 222 0 0 14 236 Total residential mortgage 3,650 (31 ) 2 178 3,799 Commercial: Commercial loans secured by real estate 2,083 0 0 304 2,387 Commercial and industrial 1,038 (2 ) 1 1 1,038 Commercial construction and land 105 0 0 41 146 Loans secured by farmland 103 0 0 3 106 Multi-family (5 or more) residential 248 0 0 (5 ) 243 Agricultural loans 47 0 0 (4 ) 43 Other commercial loans 119 0 0 (3 ) 116 Total commercial 3,743 (2 ) 1 337 4,079 Consumer 138 (28 ) 12 23 145 Unallocated 398 0 0 0 398 Total Allowance for Loan Losses $ 7,929 $ (61 ) $ 15 $ 538 $ 8,421 Nine Months Ended September 30, 2017 Dec. 31, Sept. 30, (In Thousands) 2016 Balance Charge-offs Recoveries Provision (Credit) 2017 Balance Allowance for Loan Losses: Residential mortgage: Residential mortgage loans - first liens $ 3,033 $ (162 ) $ 15 $ 279 $ 3,165 Residential mortgage loans - junior liens 258 (16 ) 3 20 265 Home equity lines of credit 350 0 0 (24 ) 326 1-4 Family residential construction 249 0 0 (6 ) 243 Total residential mortgage 3,890 (178 ) 18 269 3,999 Commercial: Commercial loans secured by real estate 2,380 (96 ) 0 353 2,637 Commercial and industrial 999 (1 ) 3 3 1,004 Commercial construction and land 162 0 0 (13 ) 149 Loans secured by farmland 110 0 0 0 110 Multi-family (5 or more) residential 241 0 0 (70 ) 171 Agricultural loans 40 0 0 18 58 Other commercial loans 115 0 0 2 117 Total commercial 4,047 (97 ) 3 293 4,246 Consumer 138 (127 ) 30 114 155 Unallocated 398 0 0 102 500 Total Allowance for Loan Losses $ 8,473 $ (402 ) $ 51 $ 778 $ 8,900 Nine Months Ended September 30, 2016 Dec. 31, Sept. 30, (In Thousands) 2015 Balance Charge-offs Recoveries Provision (Credit) 2016 Balance Allowance for Loan Losses: Residential mortgage: Residential mortgage loans - first liens $ 2,645 $ (73 ) $ 2 $ 382 $ 2,956 Residential mortgage loans - junior liens 219 0 0 29 248 Home equity lines of credit 347 0 0 12 359 1-4 Family residential construction 207 0 0 29 236 Total residential mortgage 3,418 (73 ) 2 452 3,799 Commercial: Commercial loans secured by real estate 1,939 0 2 446 2,387 Commercial and industrial 981 (2 ) 2 57 1,038 Commercial construction and land 58 0 0 88 146 Loans secured by farmland 106 0 0 0 106 Multi-family (5 or more) residential 675 (595 ) 0 163 243 Agricultural loans 45 0 0 (2 ) 43 Other commercial loans 118 0 0 (2 ) 116 Total commercial 3,922 (597 ) 4 750 4,079 Consumer 122 (67 ) 39 51 145 Unallocated 427 0 0 (29 ) 398 Total Allowance for Loan Losses $ 7,889 $ (737 ) $ 45 $ 1,224 $ 8,421
Financing Receivable Credit Quality Indicators [Table Text Block]	September 30, 2017 (In Thousands) Special Pass Mention Substandard Doubtful Total Residential Mortgage: Residential mortgage loans - first liens $ 346,545 $ 314 $ 8,372 $ 54 $ 355,285 Residential mortgage loans - junior liens 24,463 107 124 0 24,694 Home equity lines of credit 35,933 62 539 0 36,534 1-4 Family residential construction 25,286 0 0 0 25,286 Total residential mortgage 432,227 483 9,035 54 441,799 Commercial: Commercial loans secured by real estate 149,607 1,394 7,519 0 158,520 Commercial and Industrial 77,045 3,658 2,529 11 83,243 Political subdivisions 54,730 0 0 0 54,730 Commercial construction and land 13,848 10 79 0 13,937 Loans secured by farmland 5,759 587 1,385 13 7,744 Multi-family (5 or more) residential 6,974 0 592 0 7,566 Agricultural loans 5,133 278 726 0 6,137 Other commercial loans 12,310 0 73 0 12,383 Total commercial 325,406 5,927 12,903 24 344,260 Consumer 14,840 0 113 0 14,953 Totals $ 772,473 $ 6,410 $ 22,051 $ 78 $ 801,012 December 31, 2016 (In Thousands) Special Pass Mention Substandard Doubtful Total Residential Mortgage: Residential mortgage loans - first liens $ 324,377 $ 408 $ 9,258 $ 59 $ 334,102 Residential mortgage loans - junior liens 23,274 132 300 0 23,706 Home equity lines of credit 37,360 123 574 0 38,057 1-4 Family residential construction 24,820 0 88 0 24,908 Total residential mortgage 409,831 663 10,220 59 420,773 Commercial: Commercial loans secured by real estate 139,358 3,092 8,018 0 150,468 Commercial and Industrial 79,202 4,180 461 11 83,854 Political subdivisions 38,068 0 0 0 38,068 Commercial construction and land 14,136 70 81 0 14,287 Loans secured by farmland 5,745 129 1,404 16 7,294 Multi-family (5 or more) residential 7,277 0 619 0 7,896 Agricultural loans 3,208 0 790 0 3,998 Other commercial loans 11,401 0 74 0 11,475 Total commercial 298,395 7,471 11,447 27 317,340 Consumer 13,546 0 176 0 13,722 Totals $ 721,772 $ 8,134 $ 21,843 $ 86 $ 751,835
Impaired Financing Receivable by Portfolio Segment [Table Text Block]	September 30, 2017 Loans: Allowance for Loan Losses: (In Thousands) Individually Collectively Individually Collectively Evaluated Evaluated Totals Evaluated Evaluated Totals Residential mortgage: Residential mortgage loans - first liens $ 723 $ 354,562 $ 355,285 $ 0 $ 3,165 $ 3,165 Residential mortgage loans - junior liens 62 24,632 24,694 0 265 265 Home equity lines of credit 0 36,534 36,534 0 326 326 1-4 Family residential construction 0 25,286 25,286 0 243 243 Total residential mortgage 785 441,014 441,799 0 3,999 3,999 Commercial: Commercial loans secured by real estate 5,917 152,603 158,520 952 1,685 2,637 Commercial and industrial 476 82,767 83,243 165 839 1,004 Political subdivisions 0 54,730 54,730 0 0 0 Commercial construction and land 0 13,937 13,937 0 149 149 Loans secured by farmland 1,371 6,373 7,744 50 60 110 Multi-family (5 or more) residential 392 7,174 7,566 0 171 171 Agricultural loans 8 6,129 6,137 0 58 58 Other commercial loans 0 12,383 12,383 0 117 117 Total commercial 8,164 336,096 344,260 1,167 3,079 4,246 Consumer 20 14,933 14,953 0 155 155 Unallocated 500 Total $ 8,969 $ 792,043 $ 801,012 $ 1,167 $ 7,233 $ 8,900 December 31, 2016 Loans: Allowance for Loan Losses: (In Thousands) Individually Collectively Individually Collectively Evaluated Evaluated Totals Evaluated Evaluated Totals Residential mortgage: Residential mortgage loans - first liens $ 753 $ 333,349 $ 334,102 $ 0 $ 3,033 $ 3,033 Residential mortgage loans - junior liens 68 23,638 23,706 0 258 258 Home equity lines of credit 0 38,057 38,057 0 350 350 1-4 Family residential construction 0 24,908 24,908 0 249 249 Total residential mortgage 821 419,952 420,773 0 3,890 3,890 Commercial: Commercial loans secured by real estate 8,005 142,463 150,468 528 1,852 2,380 Commercial and industrial 212 83,642 83,854 95 904 999 Political subdivisions 0 38,068 38,068 0 0 0 Commercial construction and land 0 14,287 14,287 0 162 162 Loans secured by farmland 1,394 5,900 7,294 51 59 110 Multi-family (5 or more) residential 392 7,504 7,896 0 241 241 Agricultural loans 13 3,985 3,998 0 40 40 Other commercial loans 0 11,475 11,475 0 115 115 Total commercial 10,016 307,324 317,340 674 3,373 4,047 Consumer 23 13,699 13,722 0 138 138 Unallocated 398 Total $ 10,860 $ 740,975 $ 751,835 $ 674 $ 7,401 $ 8,473
Impaired Financing Receivables [Table Text Block]	(In Thousands) September 30, 2017 December 31, 2016 Unpaid Unpaid Principal Recorded Related Principal Recorded Related Balance Investment Allowance Balance Investment Allowance With no related allowance recorded: Residential mortgage loans - first liens $ 752 $ 723 $ 0 $ 783 $ 753 $ 0 Residential mortgage loans - junior liens 62 62 0 68 68 0 Commercial loans secured by real estate 3,231 3,231 0 6,975 5,232 0 Commercial and industrial 78 78 0 117 117 0 Loans secured by farmland 874 874 0 890 890 0 Multi-family (5 or more) residential 987 392 0 987 392 0 Agricultural loans 8 8 0 13 13 0 Consumer 20 20 0 23 23 0 Total with no related allowance recorded 6,012 5,388 0 9,856 7,488 0 With a related allowance recorded: Commercial loans secured by real estate 2,686 2,686 952 2,773 2,773 528 Commercial and industrial 398 398 165 95 95 95 Loans secured by farmland 497 497 50 504 504 51 Total with a related allowance recorded 3,581 3,581 1,167 3,372 3,372 674 Total $ 9,593 $ 8,969 $ 1,167 $ 13,228 $ 10,860 $ 674
Schedule Of Additional Information On Impaired Loans [Table Text Block]	Interest Income Recognized on Average Investment in Impaired Loans Impaired Loans on a Cash Basis (In Thousands) 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended Sept. 30, Sept. 30, Sept. 30, Sept. 30, 2017 2016 2017 2016 2017 2016 2017 2016 Residential mortgage: Residential mortgage loans - first lien $ 733 $ 789 $ 738 $ 818 $ 8 $ 11 $ 25 $ 33 Residential mortgage loans - junior lien 64 72 65 72 1 0 3 2 Total residential mortgage 797 861 803 890 9 11 28 35 Commercial: Commercial loans secured by real estate 6,200 7,022 6,377 6,524 36 83 127 274 Commercial and industrial 393 577 317 619 13 7 20 17 Loans secured by farmland 1,378 1,408 1,382 1,413 10 13 32 51 Multi-family (5 or more) residential 392 492 392 541 0 0 0 0 Agricultural loans 10 13 11 14 0 0 1 1 Total commercial 8,373 9,512 8,479 9,111 59 103 180 343 Consumer 25 17 27 16 0 0 0 0 Total $ 9,195 $ 10,390 $ 9,309 $ 10,017 $ 68 $ 114 $ 208 $ 378
Schedule of Financing Receivables, Non Accrual Status [Table Text Block]	(In Thousands) September 30, 2017 December 31, 2016 Past Due Past Due 90+ Days and 90+ Days and Accruing Nonaccrual Accruing Nonaccrual Residential mortgage: Residential mortgage loans - first liens $ 1,739 $ 4,352 $ 3,022 $ 3,770 Residential mortgage loans - junior liens 4 0 114 0 Home equity lines of credit 208 59 320 11 Total residential mortgage 1,951 4,411 3,456 3,781 Commercial: Commercial loans secured by real estate 126 5,732 2,774 3,080 Commercial and industrial 632 476 286 119 Commercial construction and land 53 0 0 0 Loans secured by farmland 215 1,313 219 1,331 Multi-family (5 or more) residential 0 392 0 392 Agricultural loans 0 8 0 13 Total commercial 1,026 7,921 3,279 4,935 Consumer 2 68 103 20 Totals $ 2,979 $ 12,400 $ 6,838 $ 8,736
Past Due Financing Receivables [Table Text Block]	As of September 30, 2017 As of December 31, 2016 Current & Current & (In Thousands) Past Due Past Due Past Due Past Due Past Due Past Due Less than 30-89 90+ Less than 30-89 90+ 30 Days Days Days Total 30 Days Days Days Total Residential mortgage: Residential mortgage loans - first liens $ 347,083 $ 4,410 $ 3,792 $ 355,285 $ 321,670 $ 6,695 $ 5,737 $ 334,102 Residential mortgage loans - junior liens 24,409 281 4 24,694 23,268 324 114 23,706 Home equity lines of credit 35,908 369 257 36,534 37,603 134 320 38,057 1-4 Family residential construction 24,597 689 0 25,286 24,567 341 0 24,908 Total residential mortgage 431,997 5,749 4,053 441,799 407,108 7,494 6,171 420,773 Commercial: Commercial loans secured by real estate 155,276 215 3,029 158,520 147,464 82 2,922 150,468 Commercial and industrial 82,407 151 685 83,243 83,364 185 305 83,854 Political subdivisions 54,730 0 0 54,730 38,068 0 0 38,068 Commercial construction and land 13,858 26 53 13,937 14,199 88 0 14,287 Loans secured by farmland 6,726 57 961 7,744 6,181 83 1,030 7,294 Multi-family (5 or more) residential 7,135 39 392 7,566 7,439 65 392 7,896 Agricultural loans 6,052 77 8 6,137 3,981 4 13 3,998 Other commercial loans 12,383 0 0 12,383 11,475 0 0 11,475 Total commercial 338,567 565 5,128 344,260 312,171 507 4,662 317,340 Consumer 14,720 163 70 14,953 13,446 153 123 13,722 Totals $ 785,284 $ 6,477 $ 9,251 $ 801,012 $ 732,725 $ 8,154 $ 10,956 $ 751,835
Contractual Aging of Nonaccrual Loans [Table Text Block]	Current & (In Thousands) Past Due Past Due Past Due Less than 30-89 90+ 30 Days Days Days Total September 30, 2017 Nonaccrual Totals $ 5,629 $ 499 $ 6,272 $ 12,400 December 31, 2016 Nonaccrual Totals $ 4,199 $ 419 $ 4,118 $ 8,736
Troubled Debt Restructurings on Financing Receivables [Table Text Block]	Current & (In Thousands) Past Due Past Due Past Due Less than 30-89 90+ 30 Days Days Days Nonaccrual Total September 30, 2017 Totals $ 658 $ 0 $ 0 $ 3,075 $ 3,733 December 31, 2016 Totals $ 5,453 $ 350 $ 0 $ 2,874 $ 8,677
Schedule of Troubled Debt Restructurings With Subsequent Default [Table Text Block]	(Balances in Thousands) Nine Months Ended Nine Months Ended September 30, 2017 September 30, 2016 Number Number of Recorded of Recorded Loans Investment Loans Investment Residential mortgage - first liens 0 $ 0 1 $ 242 Residential mortgage - junior liens 0 0 1 30 Commercial and industrial 0 0 1 5 Consumer 0 0 1 28 Total 0 $ 0 4 $ 305
Schedule of Real Estate Acquired Through Foreclosure [Table Text Block]	(In Thousands) Sept. 30, Dec. 31, 2017 2016 Foreclosed residential real estate $ 640 $ 1,102
Schedule of Mortgage Loans in Process of Foreclosure [Table Text Block]	(In Thousands) Sept. 30, Dec. 31, 2017 2016 Residential real estate in process of foreclosure $ 1,871 $ 2,738
Troubled Debt Restructuring [Member]
Notes Tables
Troubled Debt Restructurings on Financing Receivables [Table Text Block]	(Balances in Thousands) Three Months Ended Three Months Ended September 30, 2017 September 30, 2016 Post- Post- Number Modification Number Modification of Recorded of Recorded Loans Investment Loans Investment Consumer, Accepted short fall from sale of residential real estate on a mortgage loan and made unsecured loan to same borrower 0 $ 0 1 $ 25 Nine Months Ended Nine Months Ended September 30, 2017 September 30, 2016 Post- Post- Number Modification Number Modification of Recorded of Recorded Loans Investment Loans Investment Residential mortgage, Extended maturity with interest rate reduction 0 $ 0 1 $ 102 Commercial and industrial, Extended maturity with interest rate increase 0 0 1 5 Consumer, Accepted short fall from sale of residential real estate on a mortgage loan and made unsecured loan to same borrower 0 0 1 25 Total 0 $ 0 3 $ 132

Note 8 - Borrowed Funds (Tables

Note 8 - Borrowed Funds (Tables)	9 Months Ended
	Sep. 30, 2017
Notes Tables
Schedule of Short-term Debt [Table Text Block]	(In Thousands) Sept. 30, Dec. 31, 2017 2016 FHLB-Pittsburgh borrowings $ 3,000 $ 21,000 Customer repurchase agreements 4,739 5,175 Total short-term borrowings $ 7,739 $ 26,175
Schedule of Long-term Debt Instruments [Table Text Block]	(In Thousands) Sept. 30, Dec. 31, 2017 2016 FHLB-Pittsburgh borrowings $ 4,256 $ 11,454 Repurchase agreement 27,000 27,000 Total long-term borrowings $ 31,256 $ 38,454
Schedule of Maturities of Long-term Debt [Table Text Block]	(In Thousands) Sept. 30, Dec. 31, 2017 2016 Loan matured in June 2017 with a rate of 6.83% $ 0 $ 4 Loan matur ed in September 2017 with a rate of 3.81% 0 10,000 Loan maturing in December 2018 with a rate of 1.35% 3,000 0 Loan maturing in April 2020 with a rate of 4.79% 510 646 Loan maturing in June 2025 with a rate of 4.91% 746 804 Total long-term FHLB-Pittsburgh borrowings $ 4,256 $ 11,454
Schedule of Underlying Assets of Repurchase Agreements [Table Text Block]	(In Thousands) Sept. 3 0 , Dec . 31, 2017 2016 Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies: Residential pass-through securities $ 14,120 $ 18,181 Residential collateralized mortgage obligations 16,935 13,313 Total $ 30,055 $ 31,494

Note 9 - Defined Benefit Plans

Note 9 - Defined Benefit Plans (Tables)	9 Months Ended
	Sep. 30, 2017
Notes Tables
Schedule of Defined Benefit Plans Disclosures [Table Text Block]	Defined Benefit Plans (In Thousands) Pension Postretirement Nine Months Ended Nine Months Ended Sept. 30, Sept. 30, 2017 2016 2017 2016 Service cost $ 0 $ 0 $ 27 $ 27 Interest cost 18 20 43 47 Expected return on plan assets (23 ) (20 ) 0 0 Amortization of prior service cost 0 0 (23 ) (23 ) Recognized net actuarial loss 5 8 0 0 Net periodic benefit cost $ 0 $ 8 $ 47 $ 51 Defined Benefit Plans (In Thousands) Pension Postretirement Three Months Ended Three Months Ended Sept. 30, Sept. 30, 2017 2016 2017 2016 Service cost $ 0 $ 0 $ 9 $ 9 Interest cost 6 7 15 16 Expected return on plan assets (8 ) (7 ) 0 0 Amortization of prior service cost 0 0 (8 ) (8 ) Recognized net actuarial loss 2 3 0 0 Net periodic benefit cost $ 0 $ 3 $ 16 $ 17

Note 11 - Income Taxes (Tables)

Note 11 - Income Taxes (Tables)	9 Months Ended
	Sep. 30, 2017
Notes Tables
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	September 30, December 31, (In Thousands) 2017 2016 Deferred tax assets: Unrealized holding losses on securities $ 0 $ 512 Allowance for loan losses 3,150 2,998 Other deferred tax assets 2,582 2,658 Total deferred tax assets 5,732 6,168 Deferred tax liabilities: Unrealized holding gains on securities 122 0 Defined benefit plans - ASC 835 79 27 Bank premises and equipment 1,101 913 Core deposit intangibles 5 6 Other deferred tax liabilities 106 105 Total deferred tax liabilities 1,413 1,051 Deferred tax asset, net $ 4,319 $ 5,117
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	Three Months Ended Nine Months Ended ( Dollars In thousands) September 30, September 30, 2017 2016 2017 2016 Income before income tax provision $ 5,198 $ 5,538 $ 15,111 $ 15,378 Income tax provision 1,262 1,451 3,620 3,847 Effective tax rate 24.28 % 26.20 % 23.96 % 25.02 %

Note 2 - Per Share Data (Detail

Note 2 - Per Share Data (Details Textual) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Weighted Average Number of Shares, Restricted Stock	61,233	64,130	62,825	65,935
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0	22,715	0	39,054

Note 2 - Per Share Data - Net I

Note 2 - Per Share Data - Net Income Per Share (Details) - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net income		$ 3,936,000	$ 4,087,000	$ 11,491,000	$ 11,531,000
Less: Dividends and undistributed earnings allocated to participating securities		(20,000)	(22,000)	(59,000)	(63,000)
Net income attributable to common shares		$ 3,916,000	$ 4,065,000	$ 11,432,000	$ 11,468,000
Basic weighted-average common shares outstanding (in shares)		12,124,854	12,014,267	12,105,673	12,032,619
Basic earnings per common share (a) (in dollars per share)	[1]	$ 0.32	$ 0.34	$ 0.94	$ 0.95
Net income attributable to common shares		$ 3,916,000	$ 4,065,000	$ 11,432,000	$ 11,468,000
Dilutive effect of potential common stock arising from stock options (in shares)		37,409	29,799	40,624	24,020
Diluted weighted-average common shares outstanding (in shares)		12,162,263	12,044,066	12,146,297	12,056,639
Diluted earnings per common share (a) (in dollars per share)	[1]	$ 0.32	$ 0.34	$ 0.94	$ 0.95
[1]	Basic and diluted earnings per share under the two-class method are determined on net income reported on the income statement less earnings allocated to nonvested restricted shares with nonforfeitable dividends (participating securities).

Note 3 - Comprehensive Income -

Note 3 - Comprehensive Income - Components of Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Unrealized holding (losses) gains on available-for-sale securities	$ (213)	$ (1,661)	$ 2,067	$ 5,544
Unrealized holding gains on available-for-sale securities, income tax effect	75	580	(723)	(1,941)
Unrealized holding gains on available-for-sale securities, net of tax amount	(138)	(1,081)	1,344	3,603
Reclassification adjustment for (gains) realized in income, before tax amount	(5)	(584)	(257)	(1,089)
Reclassification adjustment for (gains) realized in income, income tax effect	1	204	89	381
Reclassification adjustment for (gains) realized in income, net of tax amount	(4)	(380)	(168)	(708)
Other comprehensive income on available-for-sale securities, before tax amount	(218)	(2,245)	1,810	4,455
Other comprehensive income (loss) on available-for-sale securities, income tax effect	76	784	(634)	(1,560)
Other comprehensive income on available-for-sale securities, net of tax amount	(142)	(1,461)	1,176	2,895
Changes from plan amendments and actuarial gains and losses included in accumulated other comprehensive gain	0	0	166	26
Changes from plan amendments and actuarial gains and losses included in other comprehensive income, income tax effect	0	0	(58)	(9)
Changes from plan amendments and actuarial gains and losses included in other comprehensive income, net of tax amount	0	0	108	17
Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost, before tax amount	(6)	(5)	(18)	(15)
Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost, income tax effect	2	2	6	5
Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost, net of tax amount	(4)	(3)	(12)	(10)
Other comprehensive (income) loss on unfunded retirement obligations, before tax amount	(6)	(5)	148	11
Other comprehensive income (loss) on unfunded retirement obligations, income tax effect	2	2	(52)	(4)
Other comprehensive income (loss) on unfunded retirement obligations, net of tax amount	(4)	(3)	96	7
Total other comprehensive income (loss), before tax amount	(224)	(2,250)	1,958	4,466
Total other comprehensive income (loss), income tax effect	78	786	(686)	(1,564)
Net other comprehensive (loss) income	$ (146)	$ (1,464)	$ 1,272	$ 2,902

Note 3 - Comprehensive Income34

Note 3 - Comprehensive Income - Changes in the Components of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Balance, beginning of period			$ (898)
Balance, end of period	$ 374		374
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Balance, beginning of period	369	$ 6,849	(949)	$ 2,493
Change during the period	(142)	(1,461)	1,176	2,895
Balance, end of period	227	5,388	227	5,388
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Balance, beginning of period	151	45	51	35
Change during the period	(4)	(3)	96	7
Balance, end of period	147	42	147	42
AOCI Attributable to Parent [Member]
Balance, beginning of period	520	6,894	(898)	2,528
Change during the period	(146)	(1,464)	1,272	2,902
Balance, end of period	$ 374	$ 5,430	$ 374	$ 5,430

Note 3 - Comprehensive Income35

Note 3 - Comprehensive Income - Amounts Reclassified Out of Each Component of OCI (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Unrealized gains and losses on available-for-sale Securities	$ (5)	$ (584)	$ (257)	$ (1,089)
Income tax provision	1,262	1,451	3,620	3,847
Net income	(3,936)	(4,087)	(11,491)	(11,531)
Total before tax	(5,198)	(5,538)	(15,111)	(15,378)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Net income	(8)	(383)	(180)	(718)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Unrealized gains and losses on available-for-sale Securities	(5)	(584)	(257)	(1,089)
Income tax provision	1	204	89	381
Net income	(4)	(380)	(168)	(708)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Income tax provision	2	2	6	5
Net income	(4)	(3)	(12)	(10)
Prior service cost	(8)	(8)	(23)	(23)
Actuarial loss	2	3	5	8
Total before tax	$ (6)	$ (5)	$ (18)	$ (15)

Note 4 - Cash and Due From Ba36

Note 4 - Cash and Due From Banks (Details Textual) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Restricted Cash and Cash Equivalents, Current	$ 17,213,000	$ 16,654,000

Note 4 - Cash and Due From Ba37

Note 4 - Cash and Due From Banks - Summary of Cash and Due From Banks (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Cash and cash equivalents	$ 29,610	$ 28,621
Certificates of deposit	3,240	3,488
Total cash and due from banks	$ 32,850	$ 32,109

Note 5 - Fair Value Measureme38

Note 5 - Fair Value Measurements and Fair Values of Financial Instruments - Assets Measured at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Available-for-sale securities	$ 365,086	$ 395,077
Impaired loans with a valuation allowance	3,581	3,372
Valuation allowance	(1,167)	(674)
Impaired loans, net	3,581	3,372
US Government Agencies Debt Securities [Member]
Available-for-sale securities	7,946	9,541
Obligations of States and Political Subdivisions Tax Exempt [Member]
Available-for-sale securities	110,557	119,037
Obligations of States and Political Subdivisions Taxable [Member]
Available-for-sale securities	27,816	30,297
Residential Pass-Through Securities [Member]
Available-for-sale securities	54,917	58,404
Residential Collateralized Mortgage Obligations [Member]
Available-for-sale securities	129,243	146,608
Commercial Mortgage Backed Securities [Member]
Available-for-sale securities	33,629	30,219
Debt Securities [Member]
Available-for-sale securities	364,108	394,106
Equity Securities [Member]
Available-for-sale securities	978	971
Fair Value, Measurements, Recurring [Member]
Available-for-sale securities	365,086	395,077
Servicing rights	1,277	1,262
Total asset fair value measurements	366,363	396,339
Fair Value, Measurements, Recurring [Member] | US Government Agencies Debt Securities [Member]
Available-for-sale securities	7,946	9,541
Fair Value, Measurements, Recurring [Member] | Obligations of States and Political Subdivisions Tax Exempt [Member]
Available-for-sale securities	110,557	119,037
Fair Value, Measurements, Recurring [Member] | Obligations of States and Political Subdivisions Taxable [Member]
Available-for-sale securities	27,816	30,297
Fair Value, Measurements, Recurring [Member] | Residential Pass-Through Securities [Member]
Available-for-sale securities	54,917	58,404
Fair Value, Measurements, Recurring [Member] | Residential Collateralized Mortgage Obligations [Member]
Available-for-sale securities	129,243	146,608
Fair Value, Measurements, Recurring [Member] | Commercial Mortgage Backed Securities [Member]
Available-for-sale securities	33,629	30,219
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member]
Available-for-sale securities	364,108	394,106
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Available-for-sale securities	978	971
Fair Value, Measurements, Nonrecurring [Member]
Total asset fair value measurements	3,831	4,878
Impaired loans with a valuation allowance	3,258	3,372
Valuation allowance	(1,077)	(674)
Impaired loans, net	2,181	2,698
Foreclosed assets held for sale	1,650	2,180
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Available-for-sale securities	978	971
Servicing rights	0	0
Total asset fair value measurements	978	971
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | US Government Agencies Debt Securities [Member]
Available-for-sale securities	0	0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Obligations of States and Political Subdivisions Tax Exempt [Member]
Available-for-sale securities	0	0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Obligations of States and Political Subdivisions Taxable [Member]
Available-for-sale securities	0	0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Residential Pass-Through Securities [Member]
Available-for-sale securities	0	0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Residential Collateralized Mortgage Obligations [Member]
Available-for-sale securities	0	0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Commercial Mortgage Backed Securities [Member]
Available-for-sale securities	0	0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member]
Available-for-sale securities	0	0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Available-for-sale securities	978	971
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Total asset fair value measurements	0	0
Impaired loans with a valuation allowance	0	0
Valuation allowance	0	0
Impaired loans, net	0	0
Foreclosed assets held for sale	0	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Available-for-sale securities	364,108	394,106
Servicing rights	0	0
Total asset fair value measurements	364,108	394,106
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | US Government Agencies Debt Securities [Member]
Available-for-sale securities	7,946	9,541
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Obligations of States and Political Subdivisions Tax Exempt [Member]
Available-for-sale securities	110,557	119,037
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Obligations of States and Political Subdivisions Taxable [Member]
Available-for-sale securities	27,816	30,297
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Residential Pass-Through Securities [Member]
Available-for-sale securities	54,917	58,404
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Residential Collateralized Mortgage Obligations [Member]
Available-for-sale securities	129,243	146,608
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Commercial Mortgage Backed Securities [Member]
Available-for-sale securities	33,629	30,219
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member]
Available-for-sale securities	364,108	394,106
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Available-for-sale securities	0	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Total asset fair value measurements	0	0
Impaired loans with a valuation allowance	0	0
Valuation allowance	0	0
Impaired loans, net	0	0
Foreclosed assets held for sale	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Available-for-sale securities	0	0
Servicing rights	1,277	1,262
Total asset fair value measurements	1,277	1,262
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | US Government Agencies Debt Securities [Member]
Available-for-sale securities	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Obligations of States and Political Subdivisions Tax Exempt [Member]
Available-for-sale securities	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Obligations of States and Political Subdivisions Taxable [Member]
Available-for-sale securities	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Residential Pass-Through Securities [Member]
Available-for-sale securities	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Residential Collateralized Mortgage Obligations [Member]
Available-for-sale securities	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Commercial Mortgage Backed Securities [Member]
Available-for-sale securities	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member]
Available-for-sale securities	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Available-for-sale securities	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Total asset fair value measurements	3,831	4,878
Impaired loans with a valuation allowance	3,258	3,372
Valuation allowance	(1,077)	(674)
Impaired loans, net	2,181	2,698
Foreclosed assets held for sale	$ 1,650	$ 2,180

Note 5 - Fair Value Measureme39

Note 5 - Fair Value Measurements and Fair Values of Financial Instruments - Valuation Techniques and the Unobservable Inputs Used in Determining Fair Value - Recurring Basis (Details) - Servicing Rights Assets [Member] - Income Approach Valuation Technique [Member] - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Fair value	$ 1,277,000	$ 1,262,000
Discount rate	13.00%	13.00%
Weighted-average PSA	147.00%	138.00%
Servicing fees of loan balances	0.25%	0.25%
Servicing fees of payments are late	4.00%	4.00%
Late fees assessed	5.00%	5.00%
Miscellaneous fees per account per month	$ 1.94	$ 1.94
Monthly servicing cost per account	6	6
Additional monthly servicing cost per loan on loans more than 30 days delinquent	$ 24	$ 24
Servicing costs of loans more than 30 days delinquent	1.50%	1.50%
Annual increase in servicing costs	3.00%	3.00%

Note 5 - Fair Value Measureme40

Note 5 - Fair Value Measurements and Fair Values of Financial Instruments - Reconciliation of Activity for Level 3 Assets Measured at Fair Value on a Recurring Basis (Details) - Servicing Rights Assets [Member] - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Servicing rights balance, beginning of period	$ 1,279	$ 1,224	$ 1,262	$ 1,296
Issuances of servicing rights	65	52	160	159
Unrealized losses included in earnings	(67)	(68)	(145)	(247)
Servicing rights balance, end of period	$ 1,277	$ 1,208	$ 1,277	$ 1,208

Note 5 - Fair Value Measureme41

Note 5 - Fair Value Measurements and Fair Values of Financial Instruments - Valuation Techniques and the Unobservable Inputs Used in Determining Fair Value - Nonrecurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Recorded investment - with allowance	$ 3,581	$ 3,372
Related allowance	1,167	674
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Recorded investment - with allowance	2,686	2,773
Related allowance	952	528
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Recorded investment - with allowance	398	95
Related allowance	165	95
Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member]
Recorded investment - with allowance	497	504
Related allowance	50	51
Residential Portfolio Segment [Member]
Foreclosed residential real estate	640	1,102
Impaired Loans [Member]
Recorded investment - with allowance	3,258	3,372
Related allowance	1,077	674
Fair value	2,181	2,698
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Market Approach Valuation Technique [Member]
Recorded investment - with allowance	2,686	2,773
Related allowance	952	528
Fair value	$ 1,734	$ 2,245
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Market Approach Valuation Technique [Member] | Weighted Average [Member]
Discount rate	16.00%	7.00%
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Market Approach Valuation Technique [Member]
Recorded investment - with allowance	$ 75	$ 95
Related allowance	75	95
Fair value	$ 0	$ 0
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Market Approach Valuation Technique [Member] | Weighted Average [Member]
Discount rate	100.00%	100.00%
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member] | Market Approach Valuation Technique [Member]
Recorded investment - with allowance	$ 497	$ 504
Related allowance	50	51
Fair value	$ 447	$ 453
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member] | Market Approach Valuation Technique [Member] | Weighted Average [Member]
Discount rate	53.00%	55.00%
Foreclosed Assets Held For Sale [Member]
Fair value	$ 1,650	$ 2,180
Foreclosed residential real estate	1,650	2,180
Valuation allowance	0	0
Foreclosed Assets Held For Sale [Member] | Land Receivable [Member] | Market Approach Valuation Technique [Member]
Fair value	646	650
Foreclosed residential real estate	646	650
Valuation allowance	$ 0	$ 0
Foreclosed Assets Held For Sale [Member] | Land Receivable [Member] | Market Approach Valuation Technique [Member] | Weighted Average [Member]
Discount rate	34.00%	33.00%
Foreclosed Assets Held For Sale [Member] | Commercial Real Estate Receivables [Member] | Market Approach Valuation Technique [Member]
Fair value	$ 364	$ 428
Foreclosed residential real estate	364	428
Valuation allowance	$ 0	$ 0
Foreclosed Assets Held For Sale [Member] | Commercial Real Estate Receivables [Member] | Market Approach Valuation Technique [Member] | Weighted Average [Member]
Discount rate	63.00%	50.00%
Foreclosed Assets Held For Sale [Member] | Residential Portfolio Segment [Member] | Market Approach Valuation Technique [Member]
Fair value	$ 640	$ 1,102
Foreclosed residential real estate	640	1,102
Valuation allowance	$ 0	$ 0
Foreclosed Assets Held For Sale [Member] | Residential Portfolio Segment [Member] | Market Approach Valuation Technique [Member] | Weighted Average [Member]
Discount rate	35.00%	35.00%

Note 5 - Fair Value Measureme42

Note 5 - Fair Value Measurements and Fair Values of Financial Instruments - Estimated Fair Values, and Related Carrying Amounts, of the Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Available-for-sale securities, at fair value	$ 365,086	$ 395,077
Reported Value Measurement [Member]
Available-for-sale securities, at fair value	365,086	395,077
Reported Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and cash equivalents	29,610	28,621
Loans held for sale	437	142
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Certificates of deposit	3,240	3,488
Restricted equity securities (included in Other Assets)	3,664	4,426
Accrued interest receivable	4,027	3,963
Short-term borrowings	7,739	26,175
Long-term borrowings	31,256	38,454
Accrued interest payable	39	65
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Deposits With No Stated Maturity [Member]
Deposits, fair value	801,942	771,625
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Time Deposits [Member]
Deposits, fair value	219,683	212,218
Reported Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Loans, net	792,112	743,362
Servicing rights	1,277	1,262
Estimate of Fair Value Measurement [Member]
Available-for-sale securities, at fair value	365,086	395,077
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and cash equivalents	29,610	28,621
Loans held for sale	437	142
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Certificates of deposit	3,239	3,481
Restricted equity securities (included in Other Assets)	3,664	4,426
Accrued interest receivable	4,027	3,963
Short-term borrowings	7,626	26,024
Long-term borrowings	31,460	39,062
Accrued interest payable	39	65
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Deposits With No Stated Maturity [Member]
Deposits, fair value	801,942	771,625
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Time Deposits [Member]
Deposits, fair value	220,017	212,274
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Loans, net	777,413	725,787
Servicing rights	$ 1,277	$ 1,262

Note 6 - Securities (Details Te

Note 6 - Securities (Details Textual)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Dec. 31, 2016USD ($)
Available-for-sale Securities Pledged as Collateral	$ 224,612,000		$ 224,612,000		$ 230,803,000
Available-for-sale Securities, Gross Realized Gains	47,000	$ 584,000	315,000	$ 1,090,000
Other Assets [Member] | Federal Home Loan Bank of Pittsburgh [Member]
Federal Home Loan Bank Stock	$ 3,534,000		$ 3,534,000		$ 4,296,000
Mutual Fund [Member]
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	1		1		1
Available-for-sale Equity Securities, Gross Unrealized Loss			$ 22,000		$ 29,000
Bank Stocks [Member]
Available-for-sale Equity Securities, Gross Unrealized Loss			0
Available-for-sale Securities, Gross Realized Gains		$ 560,000	0	$ 837,000
FHLB Stock [Member] | Federal Home Loan Bank of Pittsburgh [Member]
Other than Temporary Impairment Losses, Investments			$ 0		$ 0

Note 6 - Securities - Available

Note 6 - Securities - Available-for-sale Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Available-for-sale securities, amortized cost	$ 364,737	$ 396,538
Available-for-sale securities, gross unrealized holding gains	3,461	3,614
Available-for-sale securities, gross unrealized holding losses	(3,112)	(5,075)
Available-for-sale securities, at fair value	365,086	395,077
US Government Agencies Debt Securities [Member]
Available-for-sale securities, amortized cost	8,028	9,671
Available-for-sale securities, gross unrealized holding gains	0	5
Available-for-sale securities, gross unrealized holding losses	(82)	(135)
Available-for-sale securities, at fair value	7,946	9,541
Obligations of States and Political Subdivisions Tax Exempt [Member]
Available-for-sale securities, amortized cost	108,521	118,140
Available-for-sale securities, gross unrealized holding gains	2,678	2,592
Available-for-sale securities, gross unrealized holding losses	(642)	(1,695)
Available-for-sale securities, at fair value	110,557	119,037
Obligations of States and Political Subdivisions Taxable [Member]
Available-for-sale securities, amortized cost	27,538	30,073
Available-for-sale securities, gross unrealized holding gains	316	303
Available-for-sale securities, gross unrealized holding losses	(38)	(79)
Available-for-sale securities, at fair value	27,816	30,297
Residential Pass-Through Securities [Member]
Available-for-sale securities, amortized cost	55,247	58,922
Available-for-sale securities, gross unrealized holding gains	113	306
Available-for-sale securities, gross unrealized holding losses	(443)	(824)
Available-for-sale securities, at fair value	54,917	58,404
Residential Collateralized Mortgage Obligations [Member]
Available-for-sale securities, amortized cost	130,375	147,915
Available-for-sale securities, gross unrealized holding gains	323	408
Available-for-sale securities, gross unrealized holding losses	(1,455)	(1,715)
Available-for-sale securities, at fair value	129,243	146,608
Commercial Mortgage Backed Securities [Member]
Available-for-sale securities, amortized cost	34,028	30,817
Available-for-sale securities, gross unrealized holding gains	31	0
Available-for-sale securities, gross unrealized holding losses	(430)	(598)
Available-for-sale securities, at fair value	33,629	30,219
Debt Securities [Member]
Available-for-sale securities, amortized cost	363,737	395,538
Available-for-sale securities, gross unrealized holding gains	3,461	3,614
Available-for-sale securities, gross unrealized holding losses	(3,090)	(5,046)
Available-for-sale securities, at fair value	364,108	394,106
Equity Securities [Member]
Available-for-sale securities, amortized cost	1,000	1,000
Available-for-sale securities, gross unrealized holding gains	0	0
Available-for-sale securities, gross unrealized holding losses	(22)	(29)
Available-for-sale securities, at fair value	$ 978	$ 971

Note 6 - Securities - Availab45

Note 6 - Securities - Available-for-sale Securities With Unrealized Loss Positions (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	$ 174,457	$ 237,063
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(1,845)	(4,465)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	45,368	17,351
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(1,267)	(610)
Available-for-sale securities with unrealized loss positions, fair value	219,825	254,414
Available-for-sale securities, with unrealized loss positions, unrealized losses	(3,112)	(5,075)
US Government Agencies Debt Securities [Member]
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	7,946	7,899
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(82)	(135)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	0	0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	0	0
Available-for-sale securities with unrealized loss positions, fair value	7,946	7,899
Available-for-sale securities, with unrealized loss positions, unrealized losses	(82)	(135)
Obligations of States and Political Subdivisions Tax Exempt [Member]
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	21,028	54,479
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(238)	(1,676)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	14,890	1,278
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(404)	(19)
Available-for-sale securities with unrealized loss positions, fair value	35,918	55,757
Available-for-sale securities, with unrealized loss positions, unrealized losses	(642)	(1,695)
Obligations of States and Political Subdivisions Taxable [Member]
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	7,073	9,594
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(38)	(79)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	0	0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	0	0
Available-for-sale securities with unrealized loss positions, fair value	7,073	9,594
Available-for-sale securities, with unrealized loss positions, unrealized losses	(38)	(79)
Residential Pass-Through Securities [Member]
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	47,572	48,674
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(443)	(824)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	0	0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	0	0
Available-for-sale securities with unrealized loss positions, fair value	47,572	48,674
Available-for-sale securities, with unrealized loss positions, unrealized losses	(443)	(824)
Residential Collateralized Mortgage Obligations [Member]
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	64,948	85,198
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(747)	(1,124)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	25,718	16,073
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(708)	(591)
Available-for-sale securities with unrealized loss positions, fair value	90,666	101,271
Available-for-sale securities, with unrealized loss positions, unrealized losses	(1,455)	(1,715)
Commercial Mortgage Backed Securities [Member]
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	24,890	30,219
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(275)	(598)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	4,760	0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(155)	0
Available-for-sale securities with unrealized loss positions, fair value	29,650	30,219
Available-for-sale securities, with unrealized loss positions, unrealized losses	(430)	(598)
Debt Securities [Member]
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	173,457	236,063
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(1,823)	(4,436)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	45,368	17,351
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(1,267)	(610)
Available-for-sale securities with unrealized loss positions, fair value	218,825	253,414
Available-for-sale securities, with unrealized loss positions, unrealized losses	(3,090)	(5,046)
Equity Securities [Member]
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	1,000	1,000
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(22)	(29)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	0	0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	0	0
Available-for-sale securities with unrealized loss positions, fair value	1,000	1,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	$ (22)	$ (29)

Note 6 - Securities - Gross Rea

Note 6 - Securities - Gross Realized Gains and Losses From Available-for-sale Securities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Gross realized gains from sales	$ 47	$ 584	$ 315	$ 1,090
Gross realized losses from sales	(42)	0	(58)	(1)
Net realized gains	$ 5	$ 584	$ 257	$ 1,089

Note 6 - Securities - Availab47

Note 6 - Securities - Available-for-sale Debt Securities by Contractual Maturity (Details) $ in Thousands	Sep. 30, 2017USD ($)
Due in one year or less, amortized cost	$ 12,478
Due in one year or less, fair value	12,491
Due from one year through five years. amortized cost	71,673
Due from one year through five years, fair value	73,134
Due from five years through ten years, amortized cost	36,361
Due from five years through ten years, fair value	36,517
Due after ten years, amortized cost	23,575
Due after ten years, fair value	24,177
Sub-total, amortized cost	144,087
Sub-total, fair value	146,319
Total, amortized cost	363,737
Total, fair value	364,108
Residential Pass-Through Securities [Member]
Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies, amortized cost	55,247
Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies, fair value	54,917
Residential Collateralized Mortgage Obligations [Member]
Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies, amortized cost	130,375
Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies, fair value	129,243
Commercial Mortgage-backed Securities [Member]
Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies, amortized cost	34,028
Mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored agencies, fair value	$ 33,629

Note 7 - Loans (Details Textual

Note 7 - Loans (Details Textual)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Dec. 31, 2016USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2016USD ($)	Dec. 31, 2015USD ($)
Financing Receivable, Allowance for Credit Losses	$ 8,900,000	$ 8,421,000	$ 8,900,000	$ 8,421,000	$ 8,473,000	$ 8,635,000	$ 7,929,000	$ 7,889,000
Loans and Leases Receivable, Impaired, Commitment to Lend	$ 0		$ 0		0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0	4
Maximum [Member]
Financing Receivable Individually Evaluated for Impairment Threshold With Estimated Loss	$ 200,000		$ 200,000
Minimum [Member]
Financing Receivable Individually Evaluated for Impairment Estimated Loss Trigger	$ 100,000		$ 100,000
Commercial Loan [Member]
Loans Receivable Secured by Real Estate Percentage	55.00%		55.00%
Unfunded Loan Commitment [Member]
Financing Receivable, Allowance for Credit Losses	$ 0		$ 0		$ 0
Loans Receivable 1 [Member] | Credit Availability Concentration Risk [Member]
Concentration Risk, Percentage			0.00%		0.00%

Note 7 - Loans - Loans Receivab

Note 7 - Loans - Loans Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Loans receivable	$ 801,012	$ 751,835
Less: allowance for loan losses	(8,900)	(8,473)
Loans, net	792,112	743,362
Residential Portfolio Segment [Member]
Loans receivable	441,799	420,773
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member]
Loans receivable	355,285	334,102
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member]
Loans receivable	24,694	23,706
Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member]
Loans receivable	36,534	38,057
Residential Portfolio Segment [Member] | Construction Loans [Member]
Loans receivable	25,286	24,908
Commercial Portfolio Segment [Member]
Loans receivable	344,260	317,340
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans receivable	158,520	150,468
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans receivable	13,937	14,287
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Loans receivable	83,243	83,854
Commercial Portfolio Segment [Member] | Political Subdivisions [Member]
Loans receivable	54,730	38,068
Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member]
Loans receivable	7,744	7,294
Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member]
Loans receivable	7,566	7,896
Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans receivable	6,137	3,998
Commercial Portfolio Segment [Member] | Other Commercial Loans [Member]
Loans receivable	12,383	11,475
Consumer Portfolio Segment [Member]
Loans receivable	$ 14,953	$ 13,722

Note 7 - Loans - Allowance for

Note 7 - Loans - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Allowance for loan losses	$ 8,635	$ 7,929	$ 8,473	$ 7,889
Allowance for loan losses, charge-offs	(67)	(61)	(402)	(737)
Allowance for loan losses, recoveries	10	15	51	45
Allowance for loan losses, provision	322	538	778	1,224
Allowance for loan losses	8,900	8,421	8,900	8,421
Residential Portfolio Segment [Member]
Allowance for loan losses	3,896	3,650	3,890	3,418
Allowance for loan losses, charge-offs	0	(31)	(178)	(73)
Allowance for loan losses, recoveries	2	2	18	2
Allowance for loan losses, provision	101	178	269	452
Allowance for loan losses	3,999	3,799	3,999	3,799
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member]
Allowance for loan losses	3,052	2,830	3,033	2,645
Allowance for loan losses, charge-offs	0	(31)	(162)	(73)
Allowance for loan losses, recoveries	1	2	15	2
Allowance for loan losses, provision	112	155	279	382
Allowance for loan losses	3,165	2,956	3,165	2,956
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member]
Allowance for loan losses	261	239	258	219
Allowance for loan losses, charge-offs	0	0	(16)	0
Allowance for loan losses, recoveries	1	0	3	0
Allowance for loan losses, provision	3	9	20	29
Allowance for loan losses	265	248	265	248
Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member]
Allowance for loan losses	332	359	350	347
Allowance for loan losses, charge-offs	0	0	0	0
Allowance for loan losses, recoveries	0	0	0	0
Allowance for loan losses, provision	(6)	0	(24)	12
Allowance for loan losses	326	359	326	359
Residential Portfolio Segment [Member] | Construction Loans [Member]
Allowance for loan losses	251	222	249	207
Allowance for loan losses, charge-offs	0	0	0	0
Allowance for loan losses, recoveries	0	0	0	0
Allowance for loan losses, provision	(8)	14	(6)	29
Allowance for loan losses	243	236	243	236
Commercial Portfolio Segment [Member]
Allowance for loan losses	4,105	3,743	4,047	3,922
Allowance for loan losses, charge-offs	0	(2)	(97)	(597)
Allowance for loan losses, recoveries	1	1	3	4
Allowance for loan losses, provision	140	337	293	750
Allowance for loan losses	4,246	4,079	4,246	4,079
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Allowance for loan losses	2,610	2,083	2,380	1,939
Allowance for loan losses, charge-offs	0	0	(96)	0
Allowance for loan losses, recoveries	0	0	0	2
Allowance for loan losses, provision	27	304	353	446
Allowance for loan losses	2,637	2,387	2,637	2,387
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Allowance for loan losses	162	105	162	58
Allowance for loan losses, charge-offs	0	0	0	0
Allowance for loan losses, recoveries	0	0	0	0
Allowance for loan losses, provision	(13)	41	(13)	88
Allowance for loan losses	149	146	149	146
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Allowance for loan losses	910	1,038	999	981
Allowance for loan losses, charge-offs	0	(2)	(1)	(2)
Allowance for loan losses, recoveries	1	1	3	2
Allowance for loan losses, provision	93	1	3	57
Allowance for loan losses	1,004	1,038	1,004	1,038
Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member]
Allowance for loan losses	107	103	110	106
Allowance for loan losses, charge-offs	0	0	0	0
Allowance for loan losses, recoveries	0	0	0	0
Allowance for loan losses, provision	3	3	0	0
Allowance for loan losses	110	106	110	106
Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member]
Allowance for loan losses	169	248	241	675
Allowance for loan losses, charge-offs	0	0	0	(595)
Allowance for loan losses, recoveries	0	0	0	0
Allowance for loan losses, provision	2	(5)	(70)	163
Allowance for loan losses	171	243	171	243
Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Allowance for loan losses	42	47	40	45
Allowance for loan losses, charge-offs	0	0	0	0
Allowance for loan losses, recoveries	0	0	0	0
Allowance for loan losses, provision	16	(4)	18	(2)
Allowance for loan losses	58	43	58	43
Commercial Portfolio Segment [Member] | Other Commercial Loans [Member]
Allowance for loan losses	105	119	115	118
Allowance for loan losses, charge-offs	0	0	0	0
Allowance for loan losses, recoveries	0	0	0	0
Allowance for loan losses, provision	12	(3)	2	(2)
Allowance for loan losses	117	116	117	116
Consumer Portfolio Segment [Member]
Allowance for loan losses	134	138	138	122
Allowance for loan losses, charge-offs	(67)	(28)	(127)	(67)
Allowance for loan losses, recoveries	7	12	30	39
Allowance for loan losses, provision	81	23	114	51
Allowance for loan losses	155	145	155	145
Unallocated Financing Receivables [Member]
Allowance for loan losses	500	398	398	427
Allowance for loan losses, charge-offs	0	0	0	0
Allowance for loan losses, recoveries	0	0	0	0
Allowance for loan losses, provision	0	0	102	(29)
Allowance for loan losses	$ 500	$ 398	$ 500	$ 398

Note 7 - Loans - Outstanding Lo

Note 7 - Loans - Outstanding Loans by Risk Rating (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Loans receivable	$ 801,012	$ 751,835
Residential Portfolio Segment [Member]
Loans receivable	441,799	420,773
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member]
Loans receivable	355,285	334,102
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member]
Loans receivable	24,694	23,706
Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member]
Loans receivable	36,534	38,057
Residential Portfolio Segment [Member] | Construction Loans [Member]
Loans receivable	25,286	24,908
Commercial Portfolio Segment [Member]
Loans receivable	344,260	317,340
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans receivable	158,520	150,468
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans receivable	13,937	14,287
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Loans receivable	83,243	83,854
Commercial Portfolio Segment [Member] | Political Subdivisions [Member]
Loans receivable	54,730	38,068
Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member]
Loans receivable	7,744	7,294
Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member]
Loans receivable	7,566	7,896
Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans receivable	6,137	3,998
Commercial Portfolio Segment [Member] | Other Commercial Loans [Member]
Loans receivable	12,383	11,475
Consumer Portfolio Segment [Member]
Loans receivable	14,953	13,722
Pass [Member]
Loans receivable	772,473	721,772
Pass [Member] | Residential Portfolio Segment [Member]
Loans receivable	432,227	409,831
Pass [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member]
Loans receivable	346,545	324,377
Pass [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member]
Loans receivable	24,463	23,274
Pass [Member] | Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member]
Loans receivable	35,933	37,360
Pass [Member] | Residential Portfolio Segment [Member] | Construction Loans [Member]
Loans receivable	25,286	24,820
Pass [Member] | Commercial Portfolio Segment [Member]
Loans receivable	325,406	298,395
Pass [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans receivable	149,607	139,358
Pass [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans receivable	13,848	14,136
Pass [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Loans receivable	77,045	79,202
Pass [Member] | Commercial Portfolio Segment [Member] | Political Subdivisions [Member]
Loans receivable	54,730	38,068
Pass [Member] | Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member]
Loans receivable	5,759	5,745
Pass [Member] | Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member]
Loans receivable	6,974	7,277
Pass [Member] | Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans receivable	5,133	3,208
Pass [Member] | Commercial Portfolio Segment [Member] | Other Commercial Loans [Member]
Loans receivable	12,310	11,401
Pass [Member] | Consumer Portfolio Segment [Member]
Loans receivable	14,840	13,546
Special Mention [Member]
Loans receivable	6,410	8,134
Special Mention [Member] | Residential Portfolio Segment [Member]
Loans receivable	483	663
Special Mention [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member]
Loans receivable	314	408
Special Mention [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member]
Loans receivable	107	132
Special Mention [Member] | Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member]
Loans receivable	62	123
Special Mention [Member] | Residential Portfolio Segment [Member] | Construction Loans [Member]
Loans receivable	0	0
Special Mention [Member] | Commercial Portfolio Segment [Member]
Loans receivable	5,927	7,471
Special Mention [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans receivable	1,394	3,092
Special Mention [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans receivable	10	70
Special Mention [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Loans receivable	3,658	4,180
Special Mention [Member] | Commercial Portfolio Segment [Member] | Political Subdivisions [Member]
Loans receivable	0	0
Special Mention [Member] | Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member]
Loans receivable	587	129
Special Mention [Member] | Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member]
Loans receivable	0	0
Special Mention [Member] | Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans receivable	278	0
Special Mention [Member] | Commercial Portfolio Segment [Member] | Other Commercial Loans [Member]
Loans receivable	0	0
Special Mention [Member] | Consumer Portfolio Segment [Member]
Loans receivable	0	0
Substandard [Member]
Loans receivable	22,051	21,843
Substandard [Member] | Residential Portfolio Segment [Member]
Loans receivable	9,035	10,220
Substandard [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member]
Loans receivable	8,372	9,258
Substandard [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member]
Loans receivable	124	300
Substandard [Member] | Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member]
Loans receivable	539	574
Substandard [Member] | Residential Portfolio Segment [Member] | Construction Loans [Member]
Loans receivable	0	88
Substandard [Member] | Commercial Portfolio Segment [Member]
Loans receivable	12,903	11,447
Substandard [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans receivable	7,519	8,018
Substandard [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans receivable	79	81
Substandard [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Loans receivable	2,529	461
Substandard [Member] | Commercial Portfolio Segment [Member] | Political Subdivisions [Member]
Loans receivable	0	0
Substandard [Member] | Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member]
Loans receivable	1,385	1,404
Substandard [Member] | Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member]
Loans receivable	592	619
Substandard [Member] | Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans receivable	726	790
Substandard [Member] | Commercial Portfolio Segment [Member] | Other Commercial Loans [Member]
Loans receivable	73	74
Substandard [Member] | Consumer Portfolio Segment [Member]
Loans receivable	113	176
Doubtful [Member]
Loans receivable	78	86
Doubtful [Member] | Residential Portfolio Segment [Member]
Loans receivable	54	59
Doubtful [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member]
Loans receivable	54	59
Doubtful [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member]
Loans receivable	0	0
Doubtful [Member] | Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member]
Loans receivable	0	0
Doubtful [Member] | Residential Portfolio Segment [Member] | Construction Loans [Member]
Loans receivable	0	0
Doubtful [Member] | Commercial Portfolio Segment [Member]
Loans receivable	24	27
Doubtful [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans receivable	0	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans receivable	0	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Loans receivable	11	11
Doubtful [Member] | Commercial Portfolio Segment [Member] | Political Subdivisions [Member]
Loans receivable	0	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member]
Loans receivable	13	16
Doubtful [Member] | Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member]
Loans receivable	0	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans receivable	0	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Other Commercial Loans [Member]
Loans receivable	0	0
Doubtful [Member] | Consumer Portfolio Segment [Member]
Loans receivable	$ 0	$ 0

Note 7 - Loans - Loan Balances

Note 7 - Loans - Loan Balances and Allowance for Loan Losses for Each Impairment Method (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Loans receivable: individually evaluated	$ 8,969		$ 10,860
Loans receivable: collectively evaluated	792,043		740,975
Loans receivable	801,012		751,835
Allowance for loan losses: individually evaluated	1,167		674
Allowance for loan losses: collectively evaluated	7,233		7,401
Allowance for loan losses	8,900	$ 8,635	8,473	$ 8,421	$ 7,929	$ 7,889
Residential Portfolio Segment [Member]
Loans receivable: individually evaluated	785		821
Loans receivable: collectively evaluated	441,014		419,952
Loans receivable	441,799		420,773
Allowance for loan losses: individually evaluated	0		0
Allowance for loan losses: collectively evaluated	3,999		3,890
Allowance for loan losses	3,999	3,896	3,890	3,799	3,650	3,418
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member]
Loans receivable: individually evaluated	723		753
Loans receivable: collectively evaluated	354,562		333,349
Loans receivable	355,285		334,102
Allowance for loan losses: individually evaluated	0		0
Allowance for loan losses: collectively evaluated	3,165		3,033
Allowance for loan losses	3,165	3,052	3,033	2,956	2,830	2,645
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member]
Loans receivable: individually evaluated	62		68
Loans receivable: collectively evaluated	24,632		23,638
Loans receivable	24,694		23,706
Allowance for loan losses: individually evaluated	0		0
Allowance for loan losses: collectively evaluated	265		258
Allowance for loan losses	265	261	258	248	239	219
Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member]
Loans receivable: individually evaluated	0		0
Loans receivable: collectively evaluated	36,534		38,057
Loans receivable	36,534		38,057
Allowance for loan losses: individually evaluated	0		0
Allowance for loan losses: collectively evaluated	326		350
Allowance for loan losses	326	332	350	359	359	347
Residential Portfolio Segment [Member] | Construction Loans [Member]
Loans receivable: individually evaluated	0		0
Loans receivable: collectively evaluated	25,286		24,908
Loans receivable	25,286		24,908
Allowance for loan losses: individually evaluated	0		0
Allowance for loan losses: collectively evaluated	243		249
Allowance for loan losses	243	251	249	236	222	207
Commercial Portfolio Segment [Member]
Loans receivable: individually evaluated	8,164		10,016
Loans receivable: collectively evaluated	336,096		307,324
Loans receivable	344,260		317,340
Allowance for loan losses: individually evaluated	1,167		674
Allowance for loan losses: collectively evaluated	3,079		3,373
Allowance for loan losses	4,246	4,105	4,047	4,079	3,743	3,922
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans receivable: individually evaluated	5,917		8,005
Loans receivable: collectively evaluated	152,603		142,463
Loans receivable	158,520		150,468
Allowance for loan losses: individually evaluated	952		528
Allowance for loan losses: collectively evaluated	1,685		1,852
Allowance for loan losses	2,637	2,610	2,380	2,387	2,083	1,939
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans receivable: individually evaluated	0		0
Loans receivable: collectively evaluated	13,937		14,287
Loans receivable	13,937		14,287
Allowance for loan losses: individually evaluated	0		0
Allowance for loan losses: collectively evaluated	149		162
Allowance for loan losses	149	162	162	146	105	58
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Loans receivable: individually evaluated	476		212
Loans receivable: collectively evaluated	82,767		83,642
Loans receivable	83,243		83,854
Allowance for loan losses: individually evaluated	165		95
Allowance for loan losses: collectively evaluated	839		904
Allowance for loan losses	1,004	910	999	1,038	1,038	981
Commercial Portfolio Segment [Member] | Political Subdivisions [Member]
Loans receivable: individually evaluated	0		0
Loans receivable: collectively evaluated	54,730		38,068
Loans receivable	54,730		38,068
Allowance for loan losses: individually evaluated	0		0
Allowance for loan losses: collectively evaluated	0		0
Allowance for loan losses	0		0
Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member]
Loans receivable: individually evaluated	1,371		1,394
Loans receivable: collectively evaluated	6,373		5,900
Loans receivable	7,744		7,294
Allowance for loan losses: individually evaluated	50		51
Allowance for loan losses: collectively evaluated	60		59
Allowance for loan losses	110	107	110	106	103	106
Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member]
Loans receivable: individually evaluated	392		392
Loans receivable: collectively evaluated	7,174		7,504
Loans receivable	7,566		7,896
Allowance for loan losses: individually evaluated	0		0
Allowance for loan losses: collectively evaluated	171		241
Allowance for loan losses	171	169	241	243	248	675
Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans receivable: individually evaluated	8		13
Loans receivable: collectively evaluated	6,129		3,985
Loans receivable	6,137		3,998
Allowance for loan losses: individually evaluated	0		0
Allowance for loan losses: collectively evaluated	58		40
Allowance for loan losses	58	42	40	43	47	45
Commercial Portfolio Segment [Member] | Other Commercial Loans [Member]
Loans receivable: individually evaluated	0		0
Loans receivable: collectively evaluated	12,383		11,475
Loans receivable	12,383		11,475
Allowance for loan losses: individually evaluated	0		0
Allowance for loan losses: collectively evaluated	117		115
Allowance for loan losses	117	105	115	116	119	118
Consumer Portfolio Segment [Member]
Loans receivable: individually evaluated	20		23
Loans receivable: collectively evaluated	14,933		13,699
Loans receivable	14,953		13,722
Allowance for loan losses: individually evaluated	0		0
Allowance for loan losses: collectively evaluated	155		138
Allowance for loan losses	155	134	138	145	138	122
Unallocated Financing Receivables [Member]
Allowance for loan losses	$ 500	$ 500	$ 398	$ 398	$ 398	$ 427

Note 7 - Loans - Impaired Loans

Note 7 - Loans - Impaired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Unpaid principal - with no allowance	$ 6,012	$ 9,856
Recorded investment - with no allowance	5,388	7,488
Unpaid principal - with allowance	3,581	3,372
Recorded investment - with allowance	3,581	3,372
Related allowance	1,167	674
Unpaid principal	9,593	13,228
Recorded investment	8,969	10,860
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member]
Unpaid principal - with no allowance	752	783
Recorded investment - with no allowance	723	753
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member]
Unpaid principal - with no allowance	62	68
Recorded investment - with no allowance	62	68
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Unpaid principal - with no allowance	3,231	6,975
Recorded investment - with no allowance	3,231	5,232
Unpaid principal - with allowance	2,686	2,773
Recorded investment - with allowance	2,686	2,773
Related allowance	952	528
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Unpaid principal - with no allowance	78	117
Recorded investment - with no allowance	78	117
Unpaid principal - with allowance	398	95
Recorded investment - with allowance	398	95
Related allowance	165	95
Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member]
Unpaid principal - with no allowance	874	890
Recorded investment - with no allowance	874	890
Unpaid principal - with allowance	497	504
Recorded investment - with allowance	497	504
Related allowance	50	51
Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member]
Unpaid principal - with no allowance	987	987
Recorded investment - with no allowance	392	392
Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Unpaid principal - with no allowance	8	13
Recorded investment - with no allowance	8	13
Consumer Portfolio Segment [Member]
Unpaid principal - with no allowance	20	23
Recorded investment - with no allowance	$ 20	$ 23

Note 7 - Loans - Average Balanc

Note 7 - Loans - Average Balance of Impaired Loans and Income Recognized on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Average investment in impaired loans	$ 9,195	$ 10,390	$ 9,309	$ 10,017
Interest income recognized on impaired loans on a cash basis	68	114	208	378
Residential Portfolio Segment [Member]
Average investment in impaired loans	797	861	803	890
Interest income recognized on impaired loans on a cash basis	9	11	28	35
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member]
Average investment in impaired loans	733	789	738	818
Interest income recognized on impaired loans on a cash basis	8	11	25	33
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member]
Average investment in impaired loans	64	72	65	72
Interest income recognized on impaired loans on a cash basis	1	0	3	2
Commercial Portfolio Segment [Member]
Average investment in impaired loans	8,373	9,512	8,479	9,111
Interest income recognized on impaired loans on a cash basis	59	103	180	343
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Average investment in impaired loans	6,200	7,022	6,377	6,524
Interest income recognized on impaired loans on a cash basis	36	83	127	274
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Average investment in impaired loans	393	577	317	619
Interest income recognized on impaired loans on a cash basis	13	7	20	17
Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member]
Average investment in impaired loans	1,378	1,408	1,382	1,413
Interest income recognized on impaired loans on a cash basis	10	13	32	51
Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member]
Average investment in impaired loans	392	492	392	541
Interest income recognized on impaired loans on a cash basis	0	0	0	0
Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Average investment in impaired loans	10	13	11	14
Interest income recognized on impaired loans on a cash basis	0	0	1	1
Consumer Portfolio Segment [Member]
Average investment in impaired loans	25	17	27	16
Interest income recognized on impaired loans on a cash basis	$ 0	$ 0	$ 0	$ 0

Note 7 - Loans - Nonaccrual Loa

Note 7 - Loans - Nonaccrual Loans and Loans Past Due Ninety Days or More and Still Accruing (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Loans past due 90+ days and accruing	$ 2,979	$ 6,838
Nonaccrual loans	12,400	8,736
Residential Portfolio Segment [Member]
Loans past due 90+ days and accruing	1,951	3,456
Nonaccrual loans	4,411	3,781
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member]
Loans past due 90+ days and accruing	1,739	3,022
Nonaccrual loans	4,352	3,770
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member]
Loans past due 90+ days and accruing	4	114
Nonaccrual loans	0	0
Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member]
Loans past due 90+ days and accruing	208	320
Nonaccrual loans	59	11
Commercial Portfolio Segment [Member]
Loans past due 90+ days and accruing	1,026	3,279
Nonaccrual loans	7,921	4,935
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans past due 90+ days and accruing	126	2,774
Nonaccrual loans	5,732	3,080
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Loans past due 90+ days and accruing	632	286
Nonaccrual loans	476	119
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans past due 90+ days and accruing	53	0
Nonaccrual loans	0	0
Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member]
Loans past due 90+ days and accruing	215	219
Nonaccrual loans	1,313	1,331
Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member]
Loans past due 90+ days and accruing	0	0
Nonaccrual loans	392	392
Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans past due 90+ days and accruing	0	0
Nonaccrual loans	8	13
Consumer Portfolio Segment [Member]
Loans past due 90+ days and accruing	2	103
Nonaccrual loans	$ 68	$ 20

Note 7 - Loans - Contractual Ag

Note 7 - Loans - Contractual Aging of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Troubled debt restructurings, current and past due less than 30 days	$ 785,284	$ 732,725
Loans receivable	801,012	751,835
Financing Receivables 30 to 89 Days Past Due [Member]
Troubled debt restructurings, past due	6,477	8,154
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Troubled debt restructurings, past due	9,251	10,956
Residential Portfolio Segment [Member]
Troubled debt restructurings, current and past due less than 30 days	431,997	407,108
Loans receivable	441,799	420,773
Residential Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Troubled debt restructurings, past due	5,749	7,494
Residential Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Troubled debt restructurings, past due	4,053	6,171
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member]
Troubled debt restructurings, current and past due less than 30 days	347,083	321,670
Loans receivable	355,285	334,102
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Troubled debt restructurings, past due	4,410	6,695
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Troubled debt restructurings, past due	3,792	5,737
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member]
Troubled debt restructurings, current and past due less than 30 days	24,409	23,268
Loans receivable	24,694	23,706
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Troubled debt restructurings, past due	281	324
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Troubled debt restructurings, past due	4	114
Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member]
Troubled debt restructurings, current and past due less than 30 days	35,908	37,603
Loans receivable	36,534	38,057
Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Troubled debt restructurings, past due	369	134
Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Troubled debt restructurings, past due	257	320
Residential Portfolio Segment [Member] | Construction Loans [Member]
Troubled debt restructurings, current and past due less than 30 days	24,597	24,567
Loans receivable	25,286	24,908
Residential Portfolio Segment [Member] | Construction Loans [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Troubled debt restructurings, past due	689	341
Residential Portfolio Segment [Member] | Construction Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Troubled debt restructurings, past due	0	0
Commercial Portfolio Segment [Member]
Troubled debt restructurings, current and past due less than 30 days	338,567	312,171
Loans receivable	344,260	317,340
Commercial Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Troubled debt restructurings, past due	565	507
Commercial Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Troubled debt restructurings, past due	5,128	4,662
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Troubled debt restructurings, current and past due less than 30 days	155,276	147,464
Loans receivable	158,520	150,468
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Troubled debt restructurings, past due	215	82
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Troubled debt restructurings, past due	3,029	2,922
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Troubled debt restructurings, current and past due less than 30 days	13,858	14,199
Loans receivable	13,937	14,287
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Troubled debt restructurings, past due	26	88
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Troubled debt restructurings, past due	53	0
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Troubled debt restructurings, current and past due less than 30 days	82,407	83,364
Loans receivable	83,243	83,854
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Troubled debt restructurings, past due	151	185
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Troubled debt restructurings, past due	685	305
Commercial Portfolio Segment [Member] | Political Subdivisions [Member]
Troubled debt restructurings, current and past due less than 30 days	54,730	38,068
Loans receivable	54,730	38,068
Commercial Portfolio Segment [Member] | Political Subdivisions [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Troubled debt restructurings, past due	0	0
Commercial Portfolio Segment [Member] | Political Subdivisions [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Troubled debt restructurings, past due	0	0
Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member]
Troubled debt restructurings, current and past due less than 30 days	6,726	6,181
Loans receivable	7,744	7,294
Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Troubled debt restructurings, past due	57	83
Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Troubled debt restructurings, past due	961	1,030
Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member]
Troubled debt restructurings, current and past due less than 30 days	7,135	7,439
Loans receivable	7,566	7,896
Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Troubled debt restructurings, past due	39	65
Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Troubled debt restructurings, past due	392	392
Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Troubled debt restructurings, current and past due less than 30 days	6,052	3,981
Loans receivable	6,137	3,998
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Troubled debt restructurings, past due	77	4
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Troubled debt restructurings, past due	8	13
Commercial Portfolio Segment [Member] | Other Commercial Loans [Member]
Troubled debt restructurings, current and past due less than 30 days	12,383	11,475
Loans receivable	12,383	11,475
Commercial Portfolio Segment [Member] | Other Commercial Loans [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Troubled debt restructurings, past due	0	0
Commercial Portfolio Segment [Member] | Other Commercial Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Troubled debt restructurings, past due	0	0
Consumer Portfolio Segment [Member]
Troubled debt restructurings, current and past due less than 30 days	14,720	13,446
Loans receivable	14,953	13,722
Consumer Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Troubled debt restructurings, past due	163	153
Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Troubled debt restructurings, past due	$ 70	$ 123

Note 7 - Loans - Contractual 57

Note 7 - Loans - Contractual Aging of Nonaccrual Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Nonaccrual loans	$ 12,400	$ 8,736
Non accrual Loans [Member]
Loans current and past due, nonaccrual	5,629	4,199
Nonaccrual loans	12,400	8,736
Non accrual Loans [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Nonaccrual loans	499	419
Non accrual Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Nonaccrual loans	$ 6,272	$ 4,118

Note 7 - Loans - Aging of Troub

Note 7 - Loans - Aging of Troubled Debt Restructurings (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Troubled debt restructurings, current and past due less than 30 days	$ 785,284	$ 732,725
Nonaccrual loans	12,400	8,736
Financing Receivables 30 to 89 Days Past Due [Member]
Troubled debt restructurings, past due	6,477	8,154
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Troubled debt restructurings, past due	9,251	10,956
Troubled Debt Restructuring [Member]
Troubled debt restructurings, current and past due less than 30 days	658	5,453
Nonaccrual loans	3,075	2,874
Troubled debt restructurings	3,733	8,677
Troubled Debt Restructuring [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Troubled debt restructurings, past due	0	350
Troubled Debt Restructuring [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Troubled debt restructurings, past due	$ 0	$ 0

Note 7 - Loans - Troubled Debt

Note 7 - Loans - Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)
Troubled debt restructurings, number of contracts			0	3
Troubled debt restructurings, post-modification outstanding recorded investment			$ 0	$ 132
Consumer Portfolio Segment [Member]
Troubled debt restructurings, number of contracts	0	1
Troubled debt restructurings, post-modification outstanding recorded investment	$ 0	$ 25
Consumer Portfolio Segment [Member] | New Unsecured Loan after Short-fall from Sale of Property [Member]
Troubled debt restructurings, number of contracts			0	1
Troubled debt restructurings, post-modification outstanding recorded investment			$ 0	$ 25
Residential Portfolio Segment [Member] | Extended Maturity and Contractual Interest Rate Reduction [Member]
Troubled debt restructurings, number of contracts			0	1
Troubled debt restructurings, post-modification outstanding recorded investment			$ 0	$ 102
Commercial Portfolio Segment [Member] | Extended Maturity and Contractual Interest Rate Reduction [Member] | Commercial and Industrial [Member]
Troubled debt restructurings, number of contracts			0	1
Troubled debt restructurings, post-modification outstanding recorded investment			$ 0	$ 5

Note 7 - Loans - Defaults on Lo

Note 7 - Loans - Defaults on Loans with Previous Modifications (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)
Troubled debt restructuring defaults, number of contracts	0	0	0	4
Troubled debt restructuring defaults, recorded investment			$ 0	$ 305
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member]
Troubled debt restructuring defaults, number of contracts			0	1
Troubled debt restructuring defaults, recorded investment			$ 0	$ 242
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member]
Troubled debt restructuring defaults, number of contracts			0	1
Troubled debt restructuring defaults, recorded investment			$ 0	$ 30
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Troubled debt restructuring defaults, number of contracts			0	1
Troubled debt restructuring defaults, recorded investment			$ 0	$ 5
Consumer Portfolio Segment [Member]
Troubled debt restructuring defaults, number of contracts			0	1
Troubled debt restructuring defaults, recorded investment			$ 0	$ 28

Note 7 - Loans - Foreclosed Res

Note 7 - Loans - Foreclosed Residential Real Estate (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Residential Portfolio Segment [Member]
Foreclosed residential real estate	$ 640	$ 1,102

Note 7 - Loans - Mortgage Loans

Note 7 - Loans - Mortgage Loans in Process of Foreclosure (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Residential Portfolio Segment [Member]
Residential real estate in process of foreclosure	$ 1,871	$ 2,738

Note 8 - Borrowed Funds (Detail

Note 8 - Borrowed Funds (Details Textual) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Short-term Debt	$ 7,739,000	$ 26,175,000
Securities Sold under Agreements to Repurchase, Asset	$ 30,055,000	31,494,000
Repurchase Agreement Maturing in 2017 with a Rate of 3.595% [Member]
Debt Instrument, Interest Rate, Stated Percentage	3.595%
Securities Sold under Agreements to Repurchase [Member]
Short-term Debt	$ 4,739,000	$ 5,175,000
Debt, Weighted Average Interest Rate	0.10%	0.10%
Federal Home Loan Bank of Pittsburgh [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	$ 495,047,000	$ 471,454,000
Federal Home Loan Bank of Pittsburgh [Member] | Overnight Borrowing [Member]
Short-term Debt	$ 3,000,000	$ 21,000,000
Debt Instrument, Interest Rate, Stated Percentage	1.23%	0.74%
Federal Home Loan Bank of Pittsburgh [Member] | Other Assets [Member]
Federal Home Loan Bank Stock	$ 3,534,000	$ 4,296,000

Note 8 - Borrowed Funds - Short

Note 8 - Borrowed Funds - Short-term Borrowings (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Short-term borrowings	$ 7,739	$ 26,175
Securities Sold under Agreements to Repurchase [Member]
Short-term borrowings	4,739	5,175
Federal Home Loan Bank of Pittsburgh [Member] | Federal Home Loan Bank Advances [Member]
Short-term borrowings	$ 3,000	$ 21,000

Note 8 - Borrowed Funds - Long-

Note 8 - Borrowed Funds - Long-term Borrowings (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Long-term borrowings	$ 31,256	$ 38,454
Repurchase Agreements [Member]
Long-term borrowings	27,000	27,000
Federal Home Loan Bank Advances [Member]
Long-term borrowings	$ 4,256	$ 11,454

Note 8 - Borrowed Funds - Lon66

Note 8 - Borrowed Funds - Long-term Borrowing Maturities (Details) - Federal Home Loan Bank of Pittsburgh [Member] - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Long-term borrowings from FHLB - Pittsburgh	$ 4,256	$ 11,454
Federal Home Loan Bank Borrowings Loan Maturing in 2017 With Rate of 6.83% [Member]
Long-term borrowings from FHLB - Pittsburgh	0	4
Federal Home Loan Bank Borrowings Loan Maturing in 2017 with Rate of 3.81% [Member]
Long-term borrowings from FHLB - Pittsburgh	0	10,000
Federal Home Loan Bank Borrowings Loan Maturing in 2018 with Rate of 1.35% [Member]
Long-term borrowings from FHLB - Pittsburgh	3,000	0
Federal Home Loan Bank Borrowings Loan Maturing in 2020 with Rate of 4.79% [Member]
Long-term borrowings from FHLB - Pittsburgh	510	646
Federal Home Loan Bank Borrowings Loan Maturing in 2025 with Rate of 4.91% [Member]
Long-term borrowings from FHLB - Pittsburgh	$ 746	$ 804

Note 8 - Borrowed Funds - Lon67

Note 8 - Borrowed Funds - Long-term Borrowing Maturities (Details) (Parentheticals) - Federal Home Loan Bank of Pittsburgh [Member]	Sep. 30, 2017Rate	Dec. 31, 2016Rate
Federal Home Loan Bank Borrowings Loan Maturing in 2017 With Rate of 6.83% [Member]
Rate	6.83%	6.83%
Federal Home Loan Bank Borrowings Loan Maturing in 2017 with Rate of 3.81% [Member]
Rate	3.81%	3.81%
Federal Home Loan Bank Borrowings Loan Maturing in 2018 with Rate of 1.35% [Member]
Rate	1.35%	1.35%
Federal Home Loan Bank Borrowings Loan Maturing in 2020 with Rate of 4.79% [Member]
Rate	4.79%	4.79%
Federal Home Loan Bank Borrowings Loan Maturing in 2025 with Rate of 4.91% [Member]
Rate	4.91%	4.91%

Note 8 - Borrowed Funds - Under

Note 8 - Borrowed Funds - Underlying Securities (Details) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Underlying securities	$ 30,055,000	$ 31,494,000
Residential Pass-Through Securities [Member]
Underlying securities	14,120,000	18,181,000
Collateralized Mortgage Obligations [Member]
Underlying securities	$ 16,935,000	$ 13,313,000

Note 9 - Defined Benefit Plan69

Note 9 - Defined Benefit Plans (Details Textual) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2017
Payment for Pension and Other Postretirement Benefits	$ 36,000
Defined Benefit Plan Required Contributions in Current Fiscal Year	$ 0
Scenario, Forecast [Member]
Payment for Pension and Other Postretirement Benefits		$ 62,000

Note 9 - Defined Benefit Plan70

Note 9 - Defined Benefit Plans - Net Periodic Benefit Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Pension Plan [Member]
Service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	6	7	18	20
Expected return on plan assets	(8)	(7)	(23)	(20)
Prior service cost	0	0	0	0
Recognized net actuarial loss	2	3	5	8
Net periodic benefit cost	0	3	0	8
Other Postretirement Benefits Plan [Member]
Service cost	9	9	27	27
Interest cost	15	16	43	47
Expected return on plan assets	0	0	0	0
Prior service cost	(8)	(8)	(23)	(23)
Recognized net actuarial loss	0	0	0	0
Net periodic benefit cost	$ 16	$ 17	$ 47	$ 51

Note 10 - Stock-based Compens71

Note 10 - Stock-based Compensation Plans (Details Textual) - USD ($)	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2017	Mar. 31, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2017
Scenario, Forecast [Member]
Allocated Share-based Compensation Expense						$ 632,000
Increase in Allocated Share-based Compensation Expense, Upon Meeting of Return on Average Equity Target						$ 123,000
Restricted Stock [Member]
Allocated Share-based Compensation Expense	$ 153,000		$ 155,000	$ 475,000	$ 480,000
Stock Incentive Plan [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		22,312
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period				3 years
Stock Incentive Plan [Member] | Restricted Stock [Member] | Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period				14,897
Independent Directors Stock Incentive Plan [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		8,470
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period				1 year
Independent Directors Stock Incentive Plan [Member] | Restricted Stock [Member] | Vesting Contingent upon Corporation Meeting ROAE Performance Ratio [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage				50.00%

Note 11 - Income Taxes (Details

Note 11 - Income Taxes (Details Textual) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2017	Dec. 31, 2016
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			35.00%
Increase (Decrease) in Income Taxes	$ (18,000)	$ (19,000)	$ (55,000)	$ (57,000)
Unrecognized Tax Benefits	0		0
Scenario, Forecast [Member]
Income Tax Credits and Adjustments					$ 157,000
Increase (Decrease) in Income Taxes					$ (73,000)
Other Assets [Member]
Amortization Method Qualified Affordable Housing Project Investments	$ 634,000		$ 634,000			$ 713,000

Note 11 - Income Taxes - Net De

Note 11 - Income Taxes - Net Deferred Tax Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Deferred tax assets:
Unrealized holding losses on securities	$ 0	$ 512
Allowance for loan losses	3,150	2,998
Other deferred tax assets	2,582	2,658
Total deferred tax assets	5,732	6,168
Deferred tax liabilities:
Unrealized holding gains on securities	122	0
Defined benefit plans - ASC 835	79	27
Bank premises and equipment	1,101	913
Core deposit intangibles	5	6
Other deferred tax liabilities	106	105
Total deferred tax liabilities	1,413	1,051
Deferred tax asset, net	$ 4,319	$ 5,117

Note 11 - Income Taxes - Reconc

Note 11 - Income Taxes - Reconciliation of Income Tax (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income before income tax provision	$ 5,198	$ 5,538	$ 15,111	$ 15,378
Income tax provision	$ 1,262	$ 1,451	$ 3,620	$ 3,847
Effective tax rate	24.28%	26.20%	23.96%	25.02%