Citizens & Northern (CZNC) 10-K 26 Feb 15 2014 FY Annual report Financial data

Document_And_Entity_Informatio

Document And Entity Information (USD $)	12 Months Ended
	Dec. 31, 2014	Feb. 20, 2015	Jun. 30, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	CITIZENS & NORTHERN CORP
Document Type	10-K
Current Fiscal Year End Date	-19
Entity Common Stock, Shares Outstanding		12,263,027
Entity Public Float			$236,364,605
Amendment Flag	FALSE
Entity Central Index Key	810958
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	31-Dec-14
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2014	Dec. 31, 2013
Cash and due from banks:
Noninterest-bearing	$14,812,000	$15,917,000
Interest-bearing	21,235,000	28,702,000
Total cash and due from banks	36,047,000	44,619,000
Available-for-sale securities, at fair value	516,807,000	482,658,000
Loans held for sale	0	54,000
Loans receivable	630,545,000	644,303,000
Allowance for loan losses	-7,336,000	-8,663,000
Loans, net	623,209,000	635,640,000
Bank-owned life insurance	22,119,000	21,743,000
Accrued interest receivable	3,908,000	4,146,000
Bank premises and equipment, net	16,256,000	17,430,000
Foreclosed assets held for sale	1,189,000	892,000
Deferred tax asset, net	1,668,000	6,344,000
Intangible asset - Core deposit intangibles	52,000	87,000
Intangible asset – Goodwill	11,942,000	11,942,000
Other assets	8,766,000	12,140,000
TOTAL ASSETS	1,241,963,000	1,237,695,000
Deposits:
Noninterest-bearing	212,439,000	191,245,000
Interest-bearing	755,550,000	763,271,000
Total deposits	967,989,000	954,516,000
Short-term borrowings	5,537,000	23,385,000
Long-term borrowings	73,060,000	73,338,000
Accrued interest and other liabilities	7,015,000	6,984,000
TOTAL LIABILITIES	1,053,601,000	1,058,223,000
STOCKHOLDERS' EQUITY
Preferred stock, $1,000 par value; authorized 30,000 shares; $1,000 liquidation preference per share; no shares issued at December 31, 2014 and December 31, 2013	0	0
Common stock, par value $1.00 per share; authorized 20,000,000 shares in 2014 and 2013; issued 12,655,171 at December 31, 2014 and 12,596,540 at December 31, 2013	12,655,000	12,596,000
Paid-in capital	71,541,000	70,105,000
Retained earnings	105,550,000	101,216,000
Treasury stock, at cost; 375,191 shares at December 31, 2014 and 206,477 shares at December 31, 2013	-6,744,000	-3,452,000
Sub-total	183,002,000	180,465,000
Accumulated other comprehensive income (loss):
Unrealized gain (loss) on available-for-sale securities	5,281,000	-1,004,000
Defined benefit plans gain	79,000	11,000
Total accumulated other comprehensive income (loss)	5,360,000	-993,000
TOTAL STOCKHOLDERS' EQUITY	188,362,000	179,472,000
TOTAL LIABILITIES & STOCKHOLDERS' EQUITY	$1,241,963,000	$1,237,695,000

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parentheticals) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Preferred stock, par value (in Dollars per share)	$1,000	$1,000
Preferred stock, authorized shares	30,000	30,000
Preferred stock, liquidation preference per share (in Dollars per share)	$1,000	$1,000
Preferred stock, shares issued (in Dollars)	$0	$0
Common stock, par value (in Dollars per share)	$1	$1
Common stock, authorized shares	20,000,000	20,000,000
Common stock, issued shares	12,655,171	12,596,540
Treasury stock, shares	375,191	206,477

Consolidated_Statements_of_Inc

Consolidated Statements of Income (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
INTEREST INCOME
Interest and fees on loans	$32,127,000	$35,484,000	$40,453,000
Interest on balances with depository institutions	125,000	105,000	114,000
Interest on loans to political subdivisions	1,403,000	1,381,000	1,539,000
Interest on mortgages held for sale	16,000	54,000	107,000
Income from available-for-sale securities:
Taxable	7,721,000	6,810,000	9,029,000
Tax-exempt	4,310,000	4,785,000	5,085,000
Dividends	307,000	295,000	305,000
Total interest and dividend income	46,009,000	48,914,000	56,632,000
INTEREST EXPENSE
Interest on deposits	2,163,000	2,703,000	4,807,000
Interest on short-term borrowings	9,000	9,000	10,000
Interest on long-term borrowings	2,950,000	3,053,000	4,214,000
Total interest expense	5,122,000	5,765,000	9,031,000
Net interest income	40,887,000	43,149,000	47,601,000
Provision for loan losses	476,000	2,047,000	288,000
Net interest income after provision for loan losses	40,411,000	41,102,000	47,313,000
OTHER INCOME
Service charges on deposit accounts	5,025,000	5,246,000	5,322,000
Service charges and fees	538,000	597,000	643,000
Trust and financial management revenue	4,490,000	4,087,000	3,847,000
Brokerage revenue	901,000	784,000	801,000
Insurance commissions, fees and premiums	118,000	170,000	221,000
Interchange revenue from debit card transactions	1,959,000	1,941,000	1,938,000
Net gains from sale of loans	768,000	1,969,000	2,016,000
(Decrease) increase in fair value of servicing rights	-27,000	67,000	-188,000
Increase in cash surrender value of life insurance	376,000	399,000	455,000
Net gain (loss) from premises and equipment	8,000	-16,000	270,000
Other operating income	1,264,000	1,207,000	1,058,000
Sub-total	15,420,000	16,451,000	16,383,000
Total other-than-temporary impairment losses on available-for-sale securities	0	-25,000	-67,000
Portion of (gain) recognized in other comprehensive loss (before taxes)	0	0	0
Net impairment losses recognized in earnings	0	-25,000	-67,000
Realized gains on available-for-sale securities, net	1,104,000	1,743,000	2,749,000
Total other income	16,524,000	18,169,000	19,065,000
OTHER EXPENSES
Salaries and wages	15,121,000	14,206,000	14,370,000
Pensions and other employee benefits	4,769,000	4,150,000	4,497,000
Occupancy expense, net	2,628,000	2,473,000	2,476,000
Furniture and equipment expense	1,859,000	1,948,000	1,887,000
FDIC Assessments	600,000	604,000	633,000
Pennsylvania shares tax	1,350,000	1,402,000	1,312,000
Professional fees	699,000	1,534,000	486,000
Automated teller machine and interchange expense	924,000	1,020,000	1,136,000
Software subscriptions	784,000	836,000	890,000
Loss on prepayment of debt	0	1,023,000	2,333,000
Other operating expense	5,423,000	5,298,000	5,227,000
Total other expenses	34,157,000	34,494,000	35,247,000
Income before income tax provision	22,778,000	24,777,000	31,131,000
Income tax provision	5,692,000	6,183,000	8,426,000
NET INCOME	$17,086,000	$18,594,000	$22,705,000
NET INCOME PER SHARE - BASIC (in Dollars per share)	$1.38	$1.51	$1.86
NET INCOME PER SHARE - DILUTED (in Dollars per share)	$1.38	$1.50	$1.85

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net income	$17,086,000	$18,594,000	$22,705,000
Unrealized gains (losses) on available-for-sale securities:
Unrealized holding gains (losses) on available-for-sale securities	10,774,000	-17,623,000	4,128,000
Reclassification adjustment for gains realized in income	-1,104,000	-1,718,000	-2,682,000
Other comprehensive gain (loss) on available-for-sale securities	9,670,000	-19,341,000	1,446,000
Unfunded pension and postretirement obligations:
Changes from plan amendments and actuarial gains and losses included in accumulated other comprehensive (loss) gain	-79,000	885,000	8,000
Amortization of net transition obligation, prior service cost, net actuarial loss and loss on settlement included in net periodic benefit cost	184,000	2,000	77,000
Other comprehensive gain on unfunded retirement obligations	105,000	887,000	85,000
Other comprehensive income (loss) before income tax	9,775,000	-18,454,000	1,531,000
Income tax related to other comprehensive (income) loss	-3,422,000	6,458,000	-688,000
Net other comprehensive income (loss)	6,353,000	-11,996,000	843,000
Comprehensive income	$23,439,000	$6,598,000	$23,548,000

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Stockholders' Equity (USD $)	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2011	$12,461,000	($5,106,000)	$67,568,000	$82,302,000	$10,160,000	$167,385,000
Balance (in Shares) at Dec. 31, 2011	12,460,920	305,391
Net income				22,705,000		22,705,000
Other comprehensive income (loss), net					843,000	843,000
Cash dividends declared on common stock				-10,272,000		-10,272,000
Shares issued for dividend reinvestment plan	64,000		1,147,000			1,211,000
Shares issued for dividend reinvestment plan (in Shares)	64,491
Shares issued from treasury related to exercise of stock options		251,000	-22,000			229,000
Shares issued from treasury related to exercise of stock options (in Shares)		-15,023
Restricted stock granted		711,000	-711,000			0
Restricted stock granted (in Shares)		-42,552
Forfeiture of restricted stock		-59,000	59,000			0
Forfeiture of restricted stock (in Shares)		3,560
Stock-based compensation expense			567,000			567,000
Tax effect of stock option exercises			14,000			14,000
Tax benefit from employee benefit plan				104,000		104,000
Balance at Dec. 31, 2012	12,525,000	-4,203,000	68,622,000	94,839,000	11,003,000	182,786,000
Balance (in Shares) at Dec. 31, 2012	12,525,411	251,376
Net income				18,594,000		18,594,000
Other comprehensive income (loss), net					-11,996,000	-11,996,000
Cash dividends declared on common stock				-12,343,000		-12,343,000
Shares issued for dividend reinvestment plan	71,000		1,356,000			1,427,000
Shares issued for dividend reinvestment plan (in Shares)	71,129
Shares issued from treasury related to exercise of stock options		179,000	5,000			184,000
Shares issued from treasury related to exercise of stock options (in Shares)		-10,656
Restricted stock granted		633,000	-633,000			0
Restricted stock granted (in Shares)		-37,886
Forfeiture of restricted stock		-61,000	61,000			0
Forfeiture of restricted stock (in Shares)		3,643
Stock-based compensation expense			696,000			696,000
Tax effect of stock option exercises			-2,000			-2,000
Tax benefit from employee benefit plan				126,000		126,000
Balance at Dec. 31, 2013	12,596,000	-3,452,000	70,105,000	101,216,000	-993,000	179,472,000
Balance (in Shares) at Dec. 31, 2013	12,596,540	206,477
Net income				17,086,000		17,086,000
Other comprehensive income (loss), net					6,353,000	6,353,000
Cash dividends declared on common stock				-12,889,000		-12,889,000
Shares issued for dividend reinvestment plan	60,000	368,000	1,069,000			1,497,000
Shares issued for dividend reinvestment plan (in Shares)	59,498	-18,473
Treasury stock purchased		-4,002,000				-4,002,000
Treasury stock purchased (in Shares)		208,300
Shares issued from treasury related to exercise of stock options	-1,000	188,000	-64,000			123,000
Shares issued from treasury related to exercise of stock options (in Shares)	-867	-11,860
Restricted stock granted		279,000	-279,000			0
Restricted stock granted (in Shares)		-16,711
Forfeiture of restricted stock		-125,000	125,000			0
Forfeiture of restricted stock (in Shares)		7,458
Stock-based compensation expense			565,000			565,000
Tax effect of stock option exercises			-1,000			-1,000
Tax benefit from dividends on restricted stock			21,000			21,000
Tax benefit from employee benefit plan				137,000		137,000
Balance at Dec. 31, 2014	$12,655,000	($6,744,000)	$71,541,000	$105,550,000	$5,360,000	$188,362,000
Balance (in Shares) at Dec. 31, 2014	12,655,171	375,191

Consolidated_Statements_of_Cha1

Consolidated Statements of Changes in Stockholders' Equity (Parentheticals) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Common stock, dividends, per share	$1.04	$1	$0.84

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$17,086,000	$18,594,000	$22,705,000
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	476,000	2,047,000	288,000
Realized gains on available-for-sale securities, net	-1,104,000	-1,718,000	-2,682,000
Loss on prepayment of debt	0	1,023,000	2,333,000
Realized (gain) loss on foreclosed assets	-136,000	71,000	66,000
(Gain) loss on disposition of premises and equipment	-8,000	16,000	-270,000
Depreciation expense	1,940,000	2,020,000	1,939,000
Accretion and amortization on securities, net	1,375,000	1,836,000	1,581,000
Accretion and amortization on loans and deposits, net	-27,000	-32,000	-49,000
Decrease (increase) in fair value of servicing rights	27,000	-67,000	188,000
Increase in cash surrender value of life insurance	-376,000	-399,000	-455,000
Stock-based compensation	565,000	696,000	567,000
Amortization of core deposit intangibles	35,000	51,000	74,000
Deferred income taxes	1,254,000	1,839,000	3,760,000
Gains on sales of loans, net	-768,000	-1,969,000	-2,016,000
Origination of loans for sale	-21,680,000	-58,427,000	-62,829,000
Proceeds from sales of loans	22,317,000	62,436,000	62,821,000
Decrease (increase) in accrued interest receivable and other assets	1,395,000	3,234,000	-1,043,000
(Decrease) increase in accrued interest payable and other liabilities	-90,000	-679,000	674,000
Net Cash Provided by Operating Activities	22,281,000	30,572,000	27,652,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from maturities of certificates of deposit	2,560,000	480,000	0
Purchase of certificates of deposit	-960,000	-1,688,000	-1,060,000
Proceeds from sales of available-for-sale securities	56,269,000	25,500,000	24,228,000
Proceeds from calls and maturities of available-for-sale securities	78,101,000	97,123,000	114,247,000
Purchase of available-for-sale securities	-158,894,000	-152,163,000	-126,820,000
Redemption of Federal Home Loan Bank of Pittsburgh stock	2,804,000	2,680,000	1,931,000
Purchase of Federal Home Loan Bank of Pittsburgh stock	-602,000	-1,624,000	0
Net decrease in loans	10,317,000	39,059,000	22,320,000
Purchase of premises and equipment	-801,000	-801,000	-1,622,000
Proceeds from disposition of premises and equipment	43,000	42,000	456,000
Purchase of investment in limited liability entity	0	-147,000	-538,000
Return of principal on limited liability entity investments	173,000	164,000	114,000
Proceeds from sale of foreclosed assets	1,504,000	255,000	1,380,000
Net Cash (Used in) Provided by Investing Activities	-9,486,000	8,880,000	34,636,000
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase (decrease) in deposits	13,473,000	-51,590,000	-12,106,000
Net (decrease) increase in short-term borrowings	-17,848,000	17,818,000	617,000
Repayments of long-term borrowings	-278,000	-11,497,000	-43,884,000
Purchase of treasury stock	-4,002,000	0	0
Sale of treasury stock	123,000	184,000	229,000
Tax benefit from compensation plans	157,000	124,000	118,000
Common dividends paid	-11,392,000	-10,916,000	-9,061,000
Net Cash Used in Financing Activities	-19,767,000	-55,877,000	-64,087,000
(DECREASE) IN CASH AND CASH EQUIVALENTS	-6,972,000	-16,425,000	-1,799,000
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	38,591,000	55,016,000	56,815,000
CASH AND CASH EQUIVALENTS, END OF YEAR	31,619,000	38,591,000	55,016,000
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Assets acquired through foreclosure of real estate loans	1,665,000	339,000	1,004,000
Accrued purchase of available-for-sale securities	226,000	0	0
Interest paid	5,138,000	5,782,000	9,246,000
Income taxes paid	$4,432,000	$4,213,000	$4,250,000

Note_1_Nature_of_Operations_an

Note 1 - Nature of Operations and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]	1. NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	BASIS OF CONSOLIDATION - The consolidated financial statements include the accounts of Citizens & Northern Corporation and its subsidiaries, Citizens & Northern Bank (“C&N Bank”), Bucktail Life Insurance Company and Citizens & Northern Investment Corporation (collectively, “Corporation”), as well as C&N Bank’s wholly-owned subsidiary, C&N Financial Services Corporation. All material intercompany balances and transactions have been eliminated in consolidation.
	NATURE OF OPERATIONS - The Corporation is primarily engaged in providing a full range of banking and mortgage services to individual and corporate customers in North Central Pennsylvania and Southern New York State. Lending products include mortgage loans, commercial loans and consumer loans, as well as specialized instruments such as commercial letters-of-credit. Deposit products include various types of checking accounts, passbook and statement savings, money market accounts, interest checking accounts, Individual Retirement Accounts and certificates of deposit. The Corporation also offers non-insured “RepoSweep” accounts.
	The Corporation provides Trust and Financial Management services, including administration of trusts and estates, retirement plans, and other employee benefit plans, and investment management services. The Corporation offers a variety of personal and commercial insurance products through C&N Financial Services Corporation. C&N Financial Services Corporation also offers mutual funds, annuities, educational savings accounts and other investment products through registered agents. Management has determined that the Corporation has one reportable segment, “Community Banking.” All of the Corporation’s activities are interrelated, and each activity is dependent and assessed based on how each of the activities of the Corporation supports the others.
	The Corporation is subject to competition from other financial institutions. It is also subject to regulation by certain federal and state agencies and undergoes periodic examination by those regulatory authorities. As a consequence, the Corporation’s business is particularly susceptible to being affected by future federal and state legislation and regulations.
	USE OF ESTIMATES - The financial information is presented in accordance with generally accepted accounting principles and general practice for financial institutions in the United States of America. In preparing financial statements, management is required to make estimates and assumptions that affect the reported amount of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements. In addition, these estimates and assumptions affect revenues and expenses in the financial statements and as such, actual results could differ from those estimates.
	Material estimates that are particularly susceptible to change include: (1) the allowance for loan losses, (2) fair values of debt securities based on estimates from independent valuation services or from brokers, (3) assessment of impaired securities to determine whether or not the securities are other-than-temporarily impaired, (4) valuation of deferred tax assets and (5) valuation of obligations from defined benefit plans.
	INVESTMENT SECURITIES - Investment securities are accounted for as follows:
	Available-for-sale securities - includes debt securities not classified as held-to-maturity or trading, and unrestricted equity securities. Such securities are reported at fair value, with unrealized gains and losses excluded from earnings and reported separately through accumulated other comprehensive income, net of tax. Amortization of premiums and accretion of discounts on available-for-sale securities are recorded using the level yield method over the remaining contractual life of the securities, adjusted for actual prepayments. Realized gains and losses on sales of available-for-sale securities are computed on the basis of specific identification of the adjusted cost of each security. Securities within the available-for-sale portfolio may be used as part of the Corporation’s asset and liability management strategy and may be sold in response to changes in interest rate risk, prepayment risk or other factors.
	Other-than-temporary impairment - Declines in the fair value of available-for-sale securities that are deemed to be other-than-temporary are reflected in earnings as realized losses. In estimating other-than-temporary impairment losses, management considers (1) the length of time and the extent to which the fair value has been less than cost, (2) the financial condition and near-term prospects of the issuer, (3) the intent and ability of the Corporation to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value, and (4) whether the Corporation intends to sell the security or if it is more likely than not that the Corporation will be required to sell the security before the recovery of its amortized cost basis. The credit-related impairment is recognized in earnings and is the difference between a security’s amortized cost basis and the present value of expected future cash flows discounted at the security’s effective interest rate. For debt securities classified as held-to-maturity, if any, the amount of noncredit-related impairment is recognized in other comprehensive income and accreted over the remaining life of the debt security as an increase in the carrying value of the security. In addition, the risk of future other-than-temporary impairment may be influenced by additional bank failures, prolonged recession in the U.S. economy, changes to real estate values, interest deferrals and whether the federal government provides assistance to financial institutions.
	Restricted equity securities - Restricted equity securities consist primarily of Federal Home Loan Bank of Pittsburgh stock, and are carried at cost and evaluated for impairment. Holdings of restricted equity securities are included in Other Assets in the Consolidated Balance Sheet, and dividends received on restricted securities are included in Other Income in the Consolidated Statement of Income.
	LOANS HELD FOR SALE - Mortgage loans held for sale are reported at the lower of cost or market, determined in the aggregate.
	LOANS RECEIVABLE - Loans receivable which management has the intent and ability to hold for the foreseeable future or until maturity or payoff are stated at unpaid principal balances, less the allowance for loan losses and net deferred loan fees. Interest income is accrued on the unpaid principal balance. Loan origination and commitment fees, as well as certain direct origination costs, are deferred and amortized as a yield adjustment over the lives of the related loans using the interest method.
	The loans receivable portfolio is segmented into residential mortgage, commercial and consumer loans. The residential mortgage segment includes the following classes: first and junior lien residential mortgages, home equity lines of credit and residential construction loans. The most significant classes of commercial loans are commercial loans secured by real estate, non-real estate secured commercial and industrial loans, loans to political subdivisions, commercial construction, and loans secured by farmland.
	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 recognized on specific impaired loans unless the likelihood of further loss is remote. Interest payments received on loans for which the risk of further loss is greater than remote are applied as a reduction of the loan principal balance. Interest income on other nonaccrual 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 months) and the ultimate collectability of the total contractual principal and interest is no longer in doubt. The past due status of all classes of loans receivable is determined based on contractual due dates for loan payments. Also, the amortization of deferred loan fees is discontinued when a loan is placed on nonaccrual status.
	ALLOWANCE FOR LOAN LOSSES - The allowance for loan losses represents management’s estimate of losses inherent in the loan portfolio as of the balance sheet date and is recorded as a reduction to loans. The allowance for loan losses is increased by the provision for loan losses, and decreased by charge-offs, net of recoveries. Loans deemed to be uncollectible are charged against the allowance for loan losses, and subsequent recoveries, if any, are credited to the allowance. All, or part, of the principal balance of loans receivable are charged off to the allowance as soon as it is determined that the repayment of all, or part, of the principal balance is highly unlikely. Non-residential consumer loans are generally charged off no later than when they are 120 days past due on a contractual basis, or earlier in the event of bankruptcy or if there is an amount deemed uncollectible.
	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 affect the borrower’s ability to repay, the estimated value of any underlying collateral, composition of the loan portfolio, current economic conditions and other relevant factors. This evaluation is inherently subjective as it requires material estimates that may be susceptible to significant revision as more information becomes available. In addition, various regulatory agencies, as an integral part of their examination process, periodically review the Corporation’s allowance for loan losses. Such agencies may require the Corporation to recognize adjustments to the allowance based on their judgments of information available to them at the time of their examination. In the process of evaluating the loan portfolio, management also considers the Corporation’s exposure to losses from unfunded loan commitments. As of December 31, 2014 and 2013, management determined that no allowance for credit losses related to unfunded loan commitments was required.
	The allowance consists primarily of two major components – (1) a specific component based on a detailed assessment of certain larger loan relationships, mainly commercial purpose, determined on a loan-by-loan basis; and (2) a general component for the remainder of the portfolio based on a collective evaluation of pools of loans with similar risk characteristics. The general component is assigned to each pool of loans based on both historical net charge-off experience, and an evaluation of certain qualitative factors. An unallocated component is maintained to cover uncertainties that could affect management’s estimate of probable losses. The unallocated component of the allowance reflects the margin of imprecision inherent in the underlying assumptions used in the above methodologies for estimating specific and general losses in the portfolio.
	The specific component relates to loans that are classified as impaired based on a detailed assessment of certain larger loan relationships evaluated by a management committee referred to as the Watch List Committee. Specific loan relationships are identified for evaluation based on the related credit risk rating. For individual loans classified as impaired, an allowance is established when the collateral value less estimated selling costs, present value of discounted cash flows or observable market price of the impaired loan is lower than the carrying value of that loan.
	The general component covers pools of loans by loan class including commercial loans not considered individually impaired, as well as smaller balance homogeneous classes of loans, such as residential real estate, home equity lines of credit and other consumer loans. Accordingly, the Corporation generally does not separately identify individual consumer and residential loans for impairment disclosures, unless such loans are subject to a restructuring agreement. The pools of loans for each loan segment are evaluated for loss exposure based upon average historical net charge-off rates (currently thirty-six months), adjusted for qualitative factors. Qualitative risk factors (described in the following paragraph) are evaluated for the impact on each of the three distinct segments (residential mortgage, commercial and consumer) within the loan portfolio. Each qualitative factor is assigned a value to reflect improving, stable or declining conditions based on management’s judgment using relevant information available at the time of the evaluation. Any adjustments to the factors are supported by a narrative documentation of changes in conditions accompanying the allowance for loan loss calculation.
	The qualitative 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 67% at December 31, 2014) are secured by real estate, and accordingly, the Corporation’s risk for the commercial segment is significantly affected by commercial real estate values. The consumer segment includes a wide mix of loans for different purposes, primarily secured loans, including loans secured by motor vehicles, manufactured housing and other types of collateral.
	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 classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’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.
	For commercial loans secured by real estate, estimated fair values are determined primarily through third-party appraisals. When a real estate secured loan becomes impaired, a decision is made regarding whether an updated certified appraisal of the real estate is necessary. This decision is based on various considerations, including the age of the most recent appraisal, the loan-to-value ratio based on the original appraisal and the condition of the property. Appraised values are discounted to arrive at the estimated selling price of the collateral, which is considered to be the estimated fair value. The discounts also include estimated costs to sell the property.
	For commercial and industrial loans secured by non-real estate collateral, such as accounts receivable, inventory and equipment, estimated fair values are determined based on the borrower’s financial statements, inventory reports, accounts receivable agings or equipment appraisals or invoices. Indications of value from these sources are generally discounted based on the age of the financial information or the quality of the assets.
	Loans whose terms are modified are classified as troubled debt restructurings if the Corporation grants such borrowers concessions and it is deemed that those borrowers are experiencing financial difficulty. Concessions granted under a troubled debt restructuring generally involve an extension of a loan’s stated maturity date or a temporary reduction in interest rate. Non-accrual troubled debt restructurings may be restored to accrual status if principal and interest payments, under the modified terms, are current for six consecutive months after modification. Loans classified as troubled debt restructurings are designated as impaired.
	BANK PREMISES AND EQUIPMENT - Bank premises and equipment are stated at cost less accumulated depreciation. Repair and maintenance expenditures which extend the useful lives of assets are capitalized, and other repair and maintenance expenditures are expensed as incurred. Depreciation expense is computed using the straight-line method.
	IMPAIRMENT OF LONG-LIVED ASSETS - The Corporation reviews long-lived assets, such as premises and equipment and intangibles, for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. These changes in circumstances may include a significant decrease in the market value of an asset or the manner in which an asset is used. If there is an indication the carrying value of an asset may not be recoverable, future undiscounted cash flows expected to result from use of the asset are estimated. If the sum of the expected cash flows is less than the carrying value of the asset, a loss is recognized for the difference between the carrying value and fair market value of the asset.
	INTEREST COSTS - The Corporation capitalizes interest as a component of the cost of premises and equipment constructed or acquired for its own use. The amount of capitalized interest in 2014, 2013, and 2012 was not significant.
	FORECLOSED ASSETS HELD FOR SALE - Foreclosed assets held for sale consist of real estate acquired by foreclosure and are initially recorded at fair value, less estimated selling costs.
	GOODWILL AND CORE DEPOSIT INTANGIBLE ASSETS- Goodwill represents the excess of the cost of acquisitions over the fair value of the net assets acquired. Goodwill is tested at least annually for impairment, or more often if events or circumstances indicate there may be impairment. Core deposit intangibles are being amortized over periods of time that represent the expected lives using a method of amortization that reflects the pattern of economic benefit. Core deposit intangibles are subject to impairment testing whenever events or changes in circumstances indicate their carrying amounts may not be recoverable.
	SERVICING RIGHTS - The estimated fair value of servicing rights related to mortgage loans sold and serviced by the Corporation is recorded as an asset upon the sale of such loans. The valuation of servicing rights is adjusted quarterly, with changes in fair value included in Other Operating Income in the consolidated statements of operations. Significant inputs to the valuation include expected net servicing income to be received, the expected life of the underlying loans and the discount rate. The servicing rights asset is included in Other Assets in the consolidated balance sheet, with a balance equal to fair value of $1,281,000 at December 31, 2014 and $1,123,000 at December 31, 2013.
	INCOME TAXES - Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amount of existing assets and liabilities and their respective tax bases given the provisions of the enacted tax laws. Deferred tax assets are reduced, if necessary, by the amount of such benefits that are not expected to be realized based upon available evidence. Tax benefits from investments in limited partnerships that have qualified for federal low-income tax credits are recognized as a reduction in the provision for income tax over the term of the investment using the effective yield method. The Corporation includes income tax penalties in the provision for income tax. The Corporation has no accrued interest related to unrecognized tax benefits.
	STOCK COMPENSATION PLANS - The Corporation’s stock-based compensation policy applies to all forms of stock-based compensation including stock options and restricted stock units. All stock-based compensation is accounted for under the fair value method as required by generally accepted accounting principles in the United States. The expense associated with stock-based compensation is recognized over the vesting period of each individual arrangement.
	The fair value of each stock option is estimated on the date of grant using the Black-Scholes-Merton option valuation model. The fair value of restricted stock is based on the current market price on the date of grant.
	OFF-BALANCE SHEET FINANCIAL INSTRUMENTS - In the ordinary course of business, the Corporation has entered into off-balance sheet financial instruments consisting of commitments to extend credit and standby letters of credit. Such financial instruments are recorded in the financial statements when they become payable.
	CASH FLOWS - The Corporation utilizes the net reporting of cash receipts and cash payments for certain deposit and lending activities. Cash equivalents include federal funds sold and all cash and amounts due from depository institutions and interest-bearing deposits in other banks with original maturities of three months or less.
	TRUST ASSETS AND INCOME - Assets held by the Corporation in a fiduciary or agency capacity for its customers are not included in the financial statements since such items are not assets of the Corporation. Trust income is recorded on a cash basis, which is not materially different from the accrual basis.

Note_2_Recent_Accounting_Prono

Note 2 - Recent Accounting Pronouncements	12 Months Ended
	Dec. 31, 2014
Accounting Changes and Error Corrections [Abstract]
Accounting Changes and Error Corrections [Text Block]	2. RECENT ACCOUNTING PRONOUNCEMENTS:
	The FASB issues Accounting Standards Updates (ASUs) to the FASB Accounting Standards Codification (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 have a significant impact on financial statements issued in the near future.
	In July 2013, the FASB issued ASU 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. The amendments in this standard clarify that an unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except as follows. To the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or the applicable jurisdiction does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. For the Corporation, the amendments in this Update were effective beginning in the first quarter 2014. The Corporation will be affected by these amendments if unrecognized tax benefits arise in future periods.
	In January 2014, the FASB issued ASU 2014-01, Accounting for Investments in Qualified Affordable Housing Projects. This Update provides guidance on accounting for investments in flow-through limited liability entities that qualify for the federal low-income housing tax credit. Currently, under U.S. GAAP, a reporting entity that invests in a qualified affordable housing project may elect to account for that investment using the effective yield method if certain conditions are met, or alternatively, the investment would be accounted for under either the equity method or the cost method. Generally, investors in qualified affordable housing project investments expect to receive all of their return through the receipt of tax credits and tax deductions from operating losses, and use of the effective yield method results in recognition of the return as a reduction of income tax expense over the period of the investment. The amendments in this Update modify the conditions that a reporting entity must meet to be eligible to use a method other than the equity or cost methods to account for investments in qualified affordable housing projects. Additionally, the amendments introduce new recurring disclosure requirements about investments in qualified affordable housing projects. The amendments in this Update are effective for the Corporation for annual and interim periods beginning in the first quarter 2015, and are to be applied retrospectively. Information concerning the Corporation’s investments in qualified affordable housing projects is provided in Note 14 to these consolidated financial statements.
	In January 2014, the FASB issued ASU 2014-04, Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure. The objective of the amendments in this Update is to reduce diversity among reporting entities by clarifying when an in substance foreclosure occurs. The amendments in this Update clarify that an in substance foreclosure occurs, and a creditor is considered to have received physical possession of residential real property collateralizing a consumer mortgage loan, upon either (1) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or (2) the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. Additionally, the amendments require interim and annual disclosure of both (1) the amount of foreclosed residential real estate property held by the creditor and (2) the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure according to the requirements of the applicable jurisdiction. An entity can elect to adopt the amendments in this Update using either a modified retrospective transition method or a prospective transition method. Under the modified retrospective transition method, an entity would record a cumulative-effect adjustment to residential consumer mortgage loans and foreclosed residential real estate properties existing as of the beginning of the annual period for which the amendments are effective. For prospective transition, an entity would apply the amendments to all instances of an entity receiving physical possession of residential real estate property collateralizing consumer mortgage loans that occur after the date of adoption. Early adoption is permitted. The amendments in this Update are effective for the Corporation for annual and interim periods beginning in the first quarter 2015, and the Corporation is in the process of determining how it will apply the amendments to its accounting and reporting practices.
	In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which provides a principles-based framework for revenue recognition that supersedes virtually all previously issued revenue recognition guidance under U.S. GAAP. Additionally, the ASU requires improved disclosures to help users of financial statements better understand the nature, amount, timing, and uncertainty of revenue that is recognized. The core principle of the five-step revenue recognition framework is that an entity should 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. The ASU will be effective for all annual and interim periods beginning in the first quarter 2017. The amendments in the ASU should be applied either retrospectively to each prior reporting period presented or retrospectively with the cumulative effect of initially applying this ASU recognized at the date of initial application. The Corporation is in the process of evaluating the potential impact of adopting this ASU, including determining which transition method to apply.
	In June 2014, the FASB issued ASU 2014-11, Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures. In addition to various other amendments that will affect accounting and disclosures for transactions in which the Corporation has not engaged to date, this Update requires expanded disclosures for repurchase agreements that are accounted for as secured borrowings, including: (1) a disaggregation of the gross obligation by the class of collateral pledged, (2) the remaining contractual tenor of the agreements and (3) a discussion of the potential risks associated with the agreements and the related collateral pledged, including obligations arising from a decline in the fair value of the collateral pledged and how those risks are managed. The expanded disclosure requirements associated with repurchase agreements are effective for the Corporation for annual and interim periods beginning in the second quarter 2015. Information concerning the Corporation’s repurchase agreements is provided in Note 12 to these consolidated financial statements.
	In August 2014, the FASB issued ASU 2014-14, Receivables – Troubled Debt Restructuring by Creditors, which requires that a mortgage loan be derecognized and that a separate other receivable be recognized upon foreclosure if the following conditions are met: (1) the loan has a government guarantee that is not separable from the loan before foreclosure, (2) at the time of foreclosure, the creditor has the intent to convey the real estate property to the guarantor and make a claim on the guarantee, and the creditor has the ability to recover under the claim and (3) at the time of foreclosure, any amount of the claim that is determined on the basis of the fair value of the real estate is fixed. The amendments in this Update are effective for the Corporation for annual and interim periods beginning in the first quarter 2015.

Note_3_Comprehensive_Income

Note 3 - Comprehensive Income	12 Months Ended
	Dec. 31, 2014
Disclosure Text Block [Abstract]
Comprehensive Income (Loss) Note [Text Block]	3. COMPREHENSIVE INCOME
	Comprehensive income (loss) is the total of (1) net income (loss), and (2) all other changes in equity from non-stockholder sources, which are referred to as other comprehensive income. The components of other comprehensive income (loss), and the related tax effects, are as follows:
	(In Thousands)	Before-Tax				Income Tax			Net-of-Tax
		Amount				Effect			Amount
	2014
	Unrealized gains on available-for-sale securities:
	Unrealized holding gains on available-for-sale securities	$	10,774			$	(3,771	)	$	7,003
	Reclassification adjustment for (gains) realized in income		(1,104	)			386			(718	)
	Other comprehensive income on available-for-sale securities		9,670				(3,385	)		6,285
	Unfunded pension and postretirement obligations:
	Changes from plan amendments and actuarial gains and losses included in other comprehensive income		(79	)			28			(51	)
	Amortization of net transition obligation, prior service cost, net actuarial loss and loss on settlement included in net periodic benefit cost		184				(65	)		119
	Other comprehensive income on unfunded retirement obligations		105				(37	)		68
	Total other comprehensive income	$	9,775			$	(3,422	)	$	6,353
	(In Thousands)	Before-Tax				Income Tax			Net-of-Tax
		Amount				Effect			Amount
	2013
	Unrealized losses gains on available-for-sale securities:
	Unrealized holding losses on available-for-sale securities	$	(17,623	)		$	6,168		$	(11,455	)
	Reclassification adjustment for (gains) realized in income		(1,718	)			601			(1,117	)
	Other comprehensive loss on available-for-sale securities		(19,341	)			6,769			(12,572	)
	Unfunded pension and postretirement obligations:
	Changes from plan amendments and actuarial gains and losses included in other comprehensive income		885				(310	)		575
	Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost		2				(1	)		1
	Other comprehensive incomeon unfunded retirement obligations		887				(311	)		576
	Total other comprehensive loss	$	(18,454	)		$	6,458		$	(11,996	)
	(In Thousands)	Before-Tax				Income Tax			Net-of-Tax
		Amount				Effect			Amount
	2012
	Unrealized gains on available-for-sale securities:
	Unrealized holding gains on available-for-sale securities	$	4,128			$	(1,608	)	$	2,520
	Reclassification adjustment for (gains) realized in income		(2,682	)			939			(1,743	)
	Other comprehensive gain on available-for-sale securities		1,446				(669	)		777
	Unfunded pension and postretirement obligations:
	Changes from plan amendments and actuarial gains and losses included in other comprehensive income		8				(2	)		6
	Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost		77				(17	)		60
	Other comprehensive gain on unfunded retirement obligations		85				(19	)		66
	Total other comprehensive income	$	1,531			$	(688	)	$	843
	Changes in the components of accumulated other comprehensive income (loss), included in stockholders’ equity, are as follows:
	(In Thousands)	Unrealized				Unfunded			Accumulated
		Holding Gains				Pension and			Other
		(Losses)				Postretirement			Comprehensive
		on Securities				Obligations			Income (Loss)
	2014
	Balance, beginning of period	$	(1,004	)		$	11		$	(993	)
	Other comprehensive income before reclassifications		7,003				(51	)		6,952
	Amounts reclassified from accumulated other comprehensive income		(718	)			119			(599	)
	Other comprehensive income		6,285				68			6,353
	Balance, end of period	$	5,281			$	79		$	5,360
	2013
	Balance, beginning of period	$	11,568			$	(565	)	$	11,003
	Other comprehensive (loss) income before reclassifications		(11,455	)			575			(10,880	)
	Amounts reclassified from accumulated other comprehensive loss		(1,117	)			1			(1,116	)
	Other comprehensive (loss) income		(12,572	)			576			(11,996	)
	Balance, end of period	$	(1,004	)		$	11		$	(993	)
	2012
	Balance, beginning of period	$	10,791			$	(631	)	$	10,160
	Other comprehensive income before reclassifications		2,520				6			2,526
	Amounts reclassified from accumulated other comprehensive income		(1,743	)			60			(1,683	)
	Other comprehensive income		777				66			843
	Balance, end of period	$	11,568			$	(565	)	$	11,003
	Items reclassified out of each component of other comprehensive income are as follows:
	For the Year Ended December 31, 2014
	(In Thousands)
Details about Accumulated Other	Reclassified from			Affected Line Item in the Consolidated
Comprehensive Income Components	Accumulated Other			Statements of Income
	Comprehensive Income
Unrealized gains and losses on available-for-sale Securities	$	(1,104	)	Realized gains on available-for-sale securities, net
		386		Income tax provision
		(718	)	Net of tax
Amortization of defined benefit pension and postretirement items:
Prior service cost		(31	)	Pensions and other employee benefits
Actuarial loss		19		Pensions and other employee benefits
Loss on settlement		196		Pensions and other employee benefits
		184		Total before tax
		(65	)	Income tax provision
		119		Net of tax
Total reclassifications for the period	$	(599	)
For the Year Ended December 31, 2013
(In Thousands)
Details about Accumulated Other	Reclassified from			Affected Line Item in the Consolidated
Comprehensive Income Components	Accumulated Other			Statements of Income
	Comprehensive Income
Unrealized gains and losses on available-for-sale Securities	$	25		Total other-than-temporary impairment losses on
				available-for-sale securities
		(1,743	)	Realized gains on available-for-sale securities, net
		(1,718	)	Total before tax
		601		Income tax provision
		(1,117	)	Net of tax
Amortization of defined benefit pension and postretirement items:
Prior service cost		(31	)	Pensions and other employee benefits
Actuarial loss		33		Pensions and other employee benefits
		2		Total before tax
		(1	)	Income tax provision
		1		Net of tax
Total reclassifications for the period	$	(1,116	)

Note_4_Per_Share_Data

Note 4 - Per Share Data	12 Months Ended
	Dec. 31, 2014
Earnings Per Share [Abstract]
Earnings Per Share [Text Block]	4. PER SHARE DATA
	Net income per share is based on the weighted-average number of shares of common stock outstanding. The following data show the amounts used in computing basic and diluted net income per share. As shown in the table that follows, diluted earnings per share is computed using weighted average common shares outstanding, plus weighted-average common shares available from the exercise of all dilutive stock options, less the number of shares that could be repurchased with the proceeds of stock option exercises based on the average share price of the Corporation's common stock during the period.
				Weighted-
				Average			Earnings
		Net		Common			Per
		Income		Shares			Share
	2014
	Earnings per share – basic	$	17,086,000		12,390,067		$	1.38
	Dilutive effect of potential common stock arising from stock options:
	Exercise of outstanding stock options				224,015
	Hypothetical share repurchase at $19.41				(202,032	)
	Earnings per share – diluted	$	17,086,000		12,412,050		$	1.38
	2013
	Earnings per share – basic	$	18,594,000		12,352,383		$	1.51
	Dilutive effect of potential common stock arising from stock options:
	Exercise of outstanding stock options				250,236
	Hypothetical share repurchase at $19.86				(219,829	)
	Earnings per share – diluted	$	18,594,000		12,382,790		$	1.5
	2012
	Earnings per share – basic	$	22,705,000		12,235,748		$	1.86
	Dilutive effect of potential common stock arising from stock options:
	Exercise of outstanding stock options				200,589
	Hypothetical share repurchase at $19.16				(176,129	)
	Earnings per share – diluted	$	22,705,000		12,260,208		$	1.85
	Stock options that were anti-dilutive were excluded from net income per share calculations. Weighted-average common shares available from anti-dilutive instruments totaled 151,310 shares in 2014, 88,521 shares in 2013 and 145,333 shares in 2012.

Note_5_Cash_and_Due_from_Banks

Note 5 - Cash and Due from Banks	12 Months Ended
	Dec. 31, 2014
Cash and Cash Equivalents [Abstract]
Cash and Cash Equivalents Disclosure [Text Block]	5. CASH AND DUE FROM BANKS
	Cash and due from banks at December 31, 2014 and 2013 include the following:
	(In thousands)	Dec. 31,		Dec. 31,
		2014		2013
	Cash and cash equivalents	$	31,619	$	38,591
	Certificates of deposit		4,428		6,028
	Total cash and due from banks	$	36,047	$	44,619
	Certificates of deposit are issues by U.S. banks with original maturities greater than three months. Each certificate of deposit is fully FDIC-insured. The Corporation maintains cash and cash equivalents with certain financial institutions in excess of the FDIC insurance limit.
	The Corporation is required to maintain reserves against deposit liabilities in the form of cash and balances with the Federal Reserve Bank. The reserves are based on deposit levels, account activity, and other services provided by the Federal Reserve Bank. Required reserves were $16,853,000 at December 31, 2014 and $15,318,000 at December 31, 2013.

Note_6_Fair_Value_Measurements

Note 6 - Fair Value Measurements and Fair Values of Financial Instruments	12 Months Ended
	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	6. 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 ASC topic 820, “Fair Value Measurements and Disclosures” establishes a framework for measuring fair value that includes a hierarchy used to classify the inputs used in measuring fair value. The hierarchy prioritizes the inputs used in determining valuations into three levels. The level in the fair value hierarchy within which the fair value measurement falls is determined based on the lowest level input that is significant to the fair value measurement. The levels of the fair value hierarchy are as follows:
	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 inputs, that are observable either directly or indirectly for substantially the full term of the asset through corroboration with observable market data. Level 2 inputs include quoted market prices in active markets for similar assets, quoted market prices in markets that are not active for identical or similar assets and other observable inputs.
	Level 3 – Fair value is based on significant unobservable inputs. Examples of valuation methodologies that would result in Level 3 classification include option pricing models, discounted cash flows and other similar techniques.
	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 include the market for a particular asset becoming active or inactive, changes in the availability of quoted prices, or changes in the availability of other market data.
	At December 31, 2014 and 2013, assets measured at fair value and the valuation methods used are as follows:
							31-Dec-14
			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			$	26,676			$	0		$	26,676
	Obligations of states and political subdivisions:
	Tax-exempt			0				124,839				0			124,839
	Taxable			0				33,878				0			33,878
	Mortgage-backed securities			0				83,903				0			83,903
	Collateralized mortgage obligations,
	Issued by U.S. Government agencies			0				238,823				0			238,823
	Collateralized debt obligations			0				34				0			34
	Total debt securities			0				508,153				0			508,153
	Marketable equity securities			8,654				0				0			8,654
	Total available-for-sale securities			8,654				508,153				0			516,807
	Servicing rights			0				0				1,281			1,281
	Total recurring fair value measurements		$	8,654			$	508,153			$	1,281		$	518,088
	Nonrecurring fair value measurements
	Impaired loans with a valuation allowance		$	0			$	0			$	3,241		$	3,241
	Valuation allowance			0				0				(769	)		(769	)
	Impaired loans, net			0				0				2,472			2,472
	Foreclosed assets held for sale			0				0				1,189			1,189
	Total nonrecurring fair value measurements		$	0			$	0			$	3,661		$	3,661
							31-Dec-13
			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			$	45,877			$	0		$	45,877
	Obligations of states and political subdivisions:
	Tax-exempt			0				128,426				0			128,426
	Taxable			0				34,471				0			34,471
	Mortgage-backed securities			0				86,208				0			86,208
	Collateralized mortgage obligations,
	Issued by U.S. Government agencies			0				178,092				0			178,092
	Collateralized debt obligations			0				660				0			660
	Total debt securities			0				473,734				0			473,734
	Marketable equity securities			8,924				0				0			8,924
	Total available-for-sale securities			8,924				473,734				0			482,658
	Servicing rights			0				0				1,123			1,123
	Total recurring fair value measurements		$	8,924			$	473,734			$	1,123		$	483,781
	Nonrecurring fair value measurements
	Impaired loans with a valuation allowance		$	0			$	0			$	9,889		$	9,889
	Valuation allowance			0				0				(2,333	)		(2,333	)
	Impaired loans, net			0				0				7,556			7,556
	Foreclosed assets held for sale			0				0				892			892
	Total nonrecurring fair value measurements		$	0			$	0			$	8,448		$	8,448
	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-party appraisals less estimated selling costs.
	Management’s evaluation and selection of valuation techniques and the unobservable inputs used in determining the fair values of assets valued using Level 3 methodologies include sensitive assumptions. Other market participants might use substantially different assumptions, which could result in calculations of fair values that would be substantially different than the amount calculated by management. The following table shows quantitative information regarding significant techniques and inputs used at December 31, 2014 and 2013 for servicing rights assets measured using unobservable inputs (Level 3 methodologies) on a recurring basis:
			Fair Value at
			12/31/14			Valuation	Unobservable		Method or Value As of
			(In Thousands)			Technique	Input(s)		12/31/14
Asset
Servicing rights		$	1,281		Discounted cash flow	Discount rate			10	%	Rate used through modeling period
						Loan prepayment speeds			156	%	Weighted-average PSA
						Servicing fees			0.25	%	of loan balances
									4	%	of payments are late
									5	%	late fees assessed
								$	1.94		Miscellaneous fees per account per month
						Servicing costs		$	6		Monthly servicing cost per account
								$	24		Additional monthly servicing cost per loan on loans more than 30 days delinquent
									1.5	%	of loans more than 30 days delinquent
									3	%	annual increase in servicing costs
		Fair Value at
		12/31/13			Valuation	Unobservable		Method or Value As of
		(In Thousands)			Technique	Input(s)		12/31/13
Asset
Servicing rights		$	1,123		Discounted cash flow	Discount rate			12	%	Rate used through modeling period
						Loan prepayment speeds			152	%	Weighted-average PSA
						Servicing fees			0.25	%	of loan balances
									4	%	of payments are late
									5	%	late fees assessed
								$	1.94		Miscellaneous fees per account per month
						Servicing costs		$	6		Monthly servicing cost per account
								$	24		Additional monthly servicing cost per loan on loans more than 30 days delinquent
									1.5	%	of loans more than 30 days delinquent
									3	%	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.
Following is a reconciliation of activity for Level 3 assets measured at fair value on a recurring basis:
		Year Ended
		31-Dec-14
(In Thousands)		Servicing
		Rights
Balance, beginning of period		$	1,123
Issuances of servicing rights			185
Unrealized losses included in earnings			(27	)
Balance, end of period		$	1,281
		Year Ended December 31, 2013
		Pooled Trust				Pooled Trust
		Preferred				Preferred
		Securities -				Securities -
(In Thousands)		Senior				Mezzanine				Servicing
		Tranches				Tranches				Rights			Total
Balance, beginning of period		$	1,613			$	0			$	605		$	2,218
Issuances of servicing rights			0				0				451			451
Accretion and amortization, net			(2	)			0				0			(2	)
Proceeds from sales and calls			(1,636	)			(571	)			0			(2,207	)
Realized gains, net			23				571				0			594
Unrealized gains included in earnings			0				0				67			67
Unrealized gains included in other comprehensive income			2				0				0			2
Balance, end of period		$	0			$	0			$	1,123		$	1,123
		Year Ended December 31, 2012
		Pooled Trust				Pooled Trust
		Preferred				Preferred
		Securities -				Securities -
		Senior				Mezzanine				Servicing
		Tranches				Tranches				Rights			Total
Balance, beginning of period		$	4,638			$	730			$	375		$	5,743
Issuances of servicing rights			0				0				418			418
Accretion and amortization, net			(8	)			0				0			(8	)
Proceeds from sales and calls			(3,429	)			(1,835	)			0			(5,264	)
Realized gains, net			56				1,835				0			1,891
Unrealized losses included in earnings			0				0				(188	)		(188	)
Unrealized gains (losses) included in other comprehensive income			356				(730	)			0			(374	)
Balance, end of period		$	1,613			$	0			$	605		$	2,218
No other-than-temporary impairment losses on securities valued using Level 3 methodologies were recorded in 2014, 2013 or 2012.
Certain of the Corporation’s financial instruments are not measured at fair value in the consolidated financial statements. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument. Certain financial instruments and all nonfinancial instruments are excluded from disclosure requirements. Therefore, the aggregate fair value amounts presented may not represent the underlying fair value of the Corporation.
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 Original or Xtra program.
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-rate 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 stated maturity, such as noninterest-bearing demand deposits, savings, money market and interest checking accounts, is (by definition) equal to the amount payable at December 31, 2014 and 2013. The fair value of time deposits, such as certificates of deposit and Individual Retirement Accounts, is based on the discounted value of contractual cash flows. The discount rate is estimated using the rates currently offered for deposits of similar remaining maturities. The fair value estimates of deposits do not include the benefit that results from the low-cost funding provided by the deposit liabilities compared to the cost of borrowing funds in the market, commonly referred to as the core deposit intangible.
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 party. Estimates of the fair value of these off-balance sheet items were not made because of the short-term nature of these arrangements and the credit standing of the counterparties.
The estimated fair values, and related carrying amounts, of the Corporation’s financial instruments are as follows:
(In Thousands)	Valuation		31-Dec-14								31-Dec-13
	Method(s)		Carrying				Fair				Carrying			Fair
	Used		Amount				Value				Amount			Value
Financial assets:
Cash and cash equivalents	Level 1		$	31,619			$	31,619			$	38,591		$	38,591
Certificates of deposit	Level 2			4,428				4,443				6,028			6,057
Available-for-sale securities	See Above			516,807				516,807				482,658			482,658
Restricted equity securities (included in Other Assets)	Level 2			1,584				1,584				3,786			3,786
Loans held for sale	Level 2			0				0				54			54
Loans, net	Level 3			623,209				629,267				635,640			634,937
Accrued interest receivable	Level 2			3,908				3,908				4,146			4,146
Servicing rights	Level 3			1,281				1,281				1,123			1,123
Financial liabilities:
Deposits with no stated maturity	Level 2			729,052				729,052				693,479			693,479
Time deposits	Level 2			238,937				239,712				261,037			262,376
Short-term borrowings	Level 2			5,537				5,473				23,385			23,356
Long-term borrowings	Level 2			73,060				78,866				73,338			79,400
Accrued interest payable	Level 2			104				104				120			120

Note_7_Securities

Note 7 - Securities	12 Months Ended
	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	7. SECURITIES
	Amortized cost and fair value of available-for-sale securities at December 31, 2014 and 2013 are summarized as follows:
					31-Dec-14
					Gross			Gross
					Unrealized			Unrealized
		Amortized			Holding			Holding			Fair
	(In Thousands)	Cost			Gains			Losses			Value
	Obligations of U.S. Government agencies	$	27,221		$	38		$	(583	)	$	26,676
	Obligations of states and political subdivisions:
	Tax-exempt		120,086			5,134			(381	)		124,839
	Taxable		33,637			415			(174	)		33,878
	Mortgage-backed securities		82,479			1,493			(69	)		83,903
	Collateralized mortgage obligations,
	Issued by U.S. Government agencies		239,620			1,239			(2,036	)		238,823
	Collateralized debt obligations:		34			0			0			34
	Total debt securities		503,077			8,319			(3,243	)		508,153
	Marketable equity securities		5,605			3,058			(9	)		8,654
	Total	$	508,682		$	11,377		$	(3,252	)	$	516,807
					31-Dec-13
					Gross			Gross
					Unrealized			Unrealized
		Amortized			Holding			Holding			Fair
	(In Thousands)	Cost			Gains			Losses			Value
	Obligations of U.S. Government agencies	$	47,382		$	282		$	(1,787	)	$	45,877
	Obligations of states and political subdivisions:
	Tax-exempt		127,748			2,766			(2,088	)		128,426
	Taxable		35,154			206			(889	)		34,471
	Mortgage-backed securities		84,849			1,819			(460	)		86,208
	Collateralized mortgage obligations,
	Issued by U.S. Government agencies		182,372			761			(5,041	)		178,092
	Collateralized debt obligations:		660			0			0			660
	Total debt securities		478,165			5,834			(10,265	)		473,734
	Marketable equity securities		6,038			2,886			0			8,924
	Total	$	484,203		$	8,720		$	(10,265	)	$	482,658
	The following table presents gross unrealized losses and fair value of available-for-sale securities with unrealized loss positions that are not deemed to be other-than-temporarily impaired, aggregated by length of time that individual securities have been in a continuous unrealized loss position at December 31, 2014 and 2013:
	31-Dec-14		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	$	0		$	0		$	24,020		$	(583	)	$	24,020	$	(583	)
	Obligations of states and political subdivisions:
	Tax-exempt		11,898			(289	)		6,991			(92	)		18,889		(381	)
	Taxable		4,240			(22	)		9,159			(152	)		13,399		(174	)
	Mortgage-backed securities		0			0			4,160			(69	)		4,160		(69	)
	Collateralized mortgage obligations,
	Issued by U.S. Government agencies		58,812			(396	)		60,897			(1,640	)		119,709		(2,036	)
	Total debt securities		74,950			(707	)		105,227			(2,536	)		180,177		(3,243	)
	Marketable equity securities		134			(9	)		0			0			134		(9	)
	Total temporarily impaired available-for-sale securities	$	75,084		$	(716	)	$	105,227		$	(2,536	)	$	180,311	$	(3,252	)
	31-Dec-13	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	$	22,489		$	(1,337	)	$	4,598		$	(450	)	$	27,087	$	(1,787	)
	Obligations of states and political subdivisions:
	Tax-exempt		44,285			(1,425	)		5,808			(663	)		50,093		(2,088	)
	Taxable		20,873			(766	)		2,378			(123	)		23,251		(889	)
	Mortgage-backed securities		34,377			(460	)		0			0			34,377		(460	)
	Collateralized debt obligations,
	Issued by U.S. Government agencies		113,204			(4,608	)		7,399			(433	)		120,603		(5,041	)
	Total temporarily impaired available-for-sale securities	$	235,228		$	(8,596	)	$	20,183		$	(1,669	)	$	255,411	$	(10,265	)
	Gross realized gains and losses from available-for-sale securities (including OTTI losses in gross realized losses) and the related income tax provision were as follows:
	(In Thousands)
		2014			2013			2012
	Gross realized gains from sales	$	1,328		$	1,918		$	2,798
	Gross realized losses from sales		(224	)		(175	)		(49	)
Losses from OTTI Impairment		0			(25	)		(67	)
Net realized gains	$	1,104		$	1,718		$	2,682
Income tax provision related to net realized gains	$	386		$	601		$	939
The amortized cost and fair value of available-for-sale debt securities by contractual maturity are shown in the following table as of December 31, 2014. Actual maturities may differ from contractual maturities because counterparties may have the right to call or prepay obligations with or without call or prepayment penalties.
	Amortized			Fair
(In Thousands)	Cost			Value
Due in one year or less	$	7,909		$	7,992
Due from one year through five years		55,499			55,826
Due from five years through ten years		61,737			62,306
Due after ten years		55,833			59,303
Subtotal		180,978			185,427
Mortgage-backed securities		82,479			83,903
Collateralized mortgage obligations,
Issued by U.S. Government agencies		239,620			238,823
Total	$	503,077		$	508,153
The Corporation’s mortgage-backed securities and collateralized mortgage obligations have stated maturities that may differ from actual maturities due to borrowers’ ability to prepay obligations. Cash flows from such investments are dependent upon the performance of the underlying mortgage loans and are generally influenced by the level of interest rates. In the table above, mortgage-backed securities and collateralized mortgage obligations are shown in one period.
Investment securities carried at $369,945,000 at December 31, 2014 and $323,613,000 at December 31, 2013 were pledged as collateral for public deposits, trusts and certain other deposits as provided by law. See Note 12 for information concerning securities pledged to secure borrowing arrangements.
Management evaluates securities for OTTI at least on a quarterly basis, and more frequently when economic or market conditions warrant such evaluation. Consideration is given to (1) the length of time and the extent to which the fair value has been less than cost, (2) the financial condition and near-term prospects of the issuer, and (3) whether the Corporation intends to sell the security or more likely than not will be required to sell the security before its anticipated recovery.
The Corporation recognized net impairment losses in earnings, as follows:
(In Thousands)
	2014			2013			2012
Marketable equity securities (bank stocks)	$	0		$	(25	)	$	(67	)
A summary of information management considered in evaluating debt and equity securities for OTTI at December 31, 2014 is provided below.
Debt Securities
At December 31, 2014, management performed an assessment for possible OTTI of the Corporation’s debt securities on an issue-by-issue basis, relying on information obtained from various sources, including publicly available financial data, ratings by external agencies, brokers and other sources. The extent of individual analysis applied to each security depended on the size of the Corporation’s investment, as well as management’s perception of the credit risk associated with each security. Based on the results of the assessment, management believes impairment of these debt securities, including municipal bonds with no external ratings, at December 31, 2014 to be temporary.
At December 31, 2014, the total amortized cost basis of municipal bonds with no external credit ratings was $15,854,000, with an aggregate unrealized gain of $1,000. At the time of purchase, each of these bonds was considered investment grade and had been rated by at least one credit rating agency. Most of the bonds for which credit rating agencies have withdrawn their ratings were insured by an entity that has reported significant financial problems and declines in its regulatory capital ratios, and most of the ratings were removed in the fourth quarter 2009. However, the insurance remains in effect on the bonds. In the third quarter 2013, a credit rating agency withdrew its ratings on several bonds due to changes in its rating methodology related to credit enhancement programs provided by issuers’ state governments. However, the credit enhancement remains in effect on the bonds. None of the unrated municipal bonds has failed to make a scheduled payment.
During the second quarter 2013, the Corporation’s holding of the senior tranche of MMCAPS Funding I, Ltd., a pooled trust preferred security, was fully redeemed primarily due to prepayments of debt by the underlying issuers in the pool. The Corporation received aggregate proceeds of $1,636,000, which included a realized pretax gain of $23,000. Also during the second quarter 2013, Astoria Financial Corporation redeemed (called) the trust preferred security held by the Corporation. The Corporation received aggregate proceeds of $5,171,000, which included a realized pretax gain of $13,000.
During the first quarter 2013, management sold the Corporation’s holding of the mezzanine tranche of ALESCO Preferred Funding IX, Ltd. for aggregate pretax proceeds of $571,000, which was recorded as a gain on the sale of securities.
During the third quarter 2012, management sold the Corporation’s holdings of the mezzanine tranches of U.S. Capital Funding II, Ltd. The securities were sold for aggregate pretax proceeds of $1,754,000, which was recorded as a gain on the sale of securities.
Equity Securities
The Corporation’s marketable equity securities at December 31, 2014 and 2013 consisted exclusively of stocks of banking companies. The Corporation recognized no other-than-temporary impairment losses related to bank stocks in 2014. In 2013, the Corporation recognized an other-than-temporary impairment loss related to a bank stock of $25,000. In 2012, the Corporation recognized an other-than-temporary impairment loss related to a bank stock of $67,000. Management’s decisions to recognize other-than-temporary impairment losses followed evaluations of the issuers’ published financial results in which management determined that the recovery of the Corporation’s cost basis within the foreseeable future was uncertain. As a result of this determination, the Corporation recognized impairment losses to write each stock down to the most recent trade price at the end of the quarter in which each loss was recognized. At December 31, 2014, the Corporation held three stocks with an aggregate unrealized loss of $9,000 for which management determined an OTTI charge was not required.
Realized gains from sales of bank stocks totaled $363,000 in 2014, $1,018,000 in 2013, and $538,000 in 2012.
C&N Bank is a member of the Federal Home Loan Bank of Pittsburgh (FHLB-Pittsburgh), which is one of 12 regional Federal Home Loan Banks. As a member, C&N Bank is required to purchase and maintain stock in FHLB-Pittsburgh. There is no active market for FHLB-Pittsburgh stock, and it must ordinarily be redeemed by FHLB-Pittsburgh in order to be liquidated. C&N Bank’s investment in FHLB-Pittsburgh stock, included in Other Assets in the consolidated balance sheet, was $1,454,000 at December 31, 2014 and $3,656,000 at December 31, 2013. The Corporation evaluated its holding of FHLB-Pittsburgh stock for impairment and deemed the stock to not be impaired at December 31, 2014 and December 31, 2013. In making this determination, management concluded that recovery of total outstanding par value, which equals the carrying value, is expected. The decision was based on review of financial information that FHLB-Pittsburgh has made publicly available.

Note_8_Loans

Note 8 - Loans	12 Months Ended
	Dec. 31, 2014
Receivables [Abstract]
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	8. LOANS
	Loans outstanding at December 31, 2014 and 2013 are summarized as follows:
	Summary of Loans by Type
	(In Thousands)	Dec. 31,			Dec. 31,
		2014			2013
	Residential mortgage:
	Residential mortgage loans - first liens	$	291,882		$	299,831
	Residential mortgage loans - junior liens		21,166			23,040
	Home equity lines of credit		36,629			34,530
	1-4 Family residential construction		16,739			13,909
	Total residential mortgage		366,416			371,310
	Commercial:
	Commercial loans secured by real estate		145,878			147,215
	Commercial and industrial		50,157			42,387
	Political subdivisions		17,534			16,291
	Commercial construction and land		6,938			17,003
	Loans secured by farmland		7,916			10,468
	Multi-family (5 or more) residential		8,917			10,985
	Agricultural loans		3,221			3,251
	Other commercial loans		13,334			14,631
	Total commercial		253,895			262,231
	Consumer		10,234			10,762
	Total		630,545			644,303
	Less: allowance for loan losses		(7,336	)		(8,663	)
	Loans, net	$	623,209		$	635,640
	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 make up 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 concentration of loans to borrowers engaged in similar businesses or activities that exceed 10% of total loans at December 31, 2014.
	Transactions within the allowance for loan losses, summarized by segment and class, were as follows:
	Year Ended December 31, 2014	Dec. 31,											Dec. 31,
	(In Thousands)	2013			Charge-offs			Recoveries		Provision (Credit)			2014
		Balance											Balance
	Allowance for Loan Losses:
	Residential mortgage:
	Residential mortgage loans - first liens	$	2,974		$	(164	)	$	25	$	106		$	2,941
	Residential mortgage loans - junior liens		294			(101	)		0		(17	)		176
	Home equity lines of credit		269			(62	)		0		115			322
	1-4 Family residential construction		168			0			0		46			214
	Total residential mortgage		3,705			(327	)		25		250			3,653
	Commercial:
	Commercial loans secured by real estate		3,123			(1,521	)		250		(94	)		1,758
	Commercial and industrial		591			(24	)		9		112			688
	Political subdivisions		0			0			0		0			0
	Commercial construction and land		267			(170	)		5		181			283
	Loans secured by farmland		115			0			0		50			165
	Multi-family (5 or more) residential		103			0			0		(16	)		87
	Agricultural loans		30			0			0		1			31
	Other commercial loans		138			0			0		(7	)		131
	Total commercial		4,367			(1,715	)		264		227			3,143
	Consumer		193			(97	)		47		2			145
	Unallocated		398			0			0		(3	)		395
	Total Allowance for Loan Losses	$	8,663		$	(2,139	)	$	336	$	476		$	7,336
	Year Ended December 31, 2013
	(In Thousands)	Dec. 31,											Dec. 31,
		2012								Provision			2013
		Balance			Charge-offs			Recoveries		(Credit)			Balance
	Allowance for Loan Losses:
	Residential mortgage:
	Residential mortgage loans - first liens	$	2,619		$	(84	)	$	24	$	415		$	2,974
	Residential mortgage loans - junior liens		247			0			0		47			294
	Home equity lines of credit		255			0			0		14			269
	1-4 Family residential construction		96			(11	)		0		83			168
	Total residential mortgage		3,217			(95	)		24		559			3,705
	Commercial:
	Commercial loans secured by real estate		1,930			(169	)		344		1,018			3,123
	Commercial and industrial		581			(286	)		4		292			591
Political subdivisions		0			0			0		0			0
Commercial construction and land		234			(4	)		0		37			267
Loans secured by farmland		129			0			0		(14	)		115
Multi-family (5 or more) residential		67			0			0		36			103
Agricultural loans		27			0			0		3			30
Other commercial loans		3			0			0		135			138
Total commercial		2,971			(459	)		348		1,507			4,367
Consumer		228			(117	)		58		24			193
Unallocated		441			0			0		(43	)		398
Total Allowance for Loan Losses	$	6,857		$	(671	)	$	430	$	2,047		$	8,663
Year Ended December 31, 2012
(In Thousands)	Dec. 31,											Dec. 31,
	2011								Provision			2012
	Balance			Charge-offs			Recoveries		(Credit)			Balance
Allowance for Loan Losses:
Residential mortgage:
Residential mortgage loans - first liens	$	3,026		$	(543	)	$	18	$	118		$	2,619
Residential mortgage loans - junior liens		266			(9	)		0		(10	)		247
Home equity lines of credit		231			0			0		24			255
1-4 Family residential construction		79			0			0		17			96
Total residential mortgage		3,602			(552	)		18		149			3,217
Commercial:
Commercial loans secured by real estate		2,004			0			1		(75	)		1,930
Commercial and industrial		946			(57	)		7		(315	)		581
Political subdivisions		0			0			0		0			0
Commercial construction and land		267			(441	)		0		408			234
Loans secured by farmland		126			0			0		3			129
Multi-family (5 or more) residential		66			0			0		1			67
Agricultural loans		27			0			0		0			27
Other commercial loans		5			0			0		(2	)		3
Total commercial		3,441			(498	)		8		20			2,971
Consumer		228			(171	)		59		112			228
Unallocated		434			0			0		7			441
Total Allowance for Loan Losses	$	7,705		$	(1,221	)	$	85	$	288		$	6,857
In the evaluation of the loan portfolio, management determines two major components for the allowance for loan losses – (1) a specific component based on an assessment of certain larger relationships, mainly commercial purpose loans, on a loan-by-loan basis; and (2) a general component for the remainder of the portfolio based on a collective evaluation of pools of loans with similar risk characteristics.
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 corrected. Loans classified as Doubtful have all the weaknesses inherent in those classified as Substandard with the added characteristic that the weaknesses present make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. Loans that do not currently expose the Corporation to sufficient risk to warrant classification as Substandard or Doubtful, but possess weaknesses that deserve management’s close attention, are deemed to be Special Mention. Risk ratings are updated any time that conditions or the situation warrants. Loans not classified are included in the “Pass” column in the table below.
The following tables summarize the aggregate credit quality classification of outstanding loans by risk rating as of December 31, 2014 and 2013:
31-Dec-14
(In Thousands)				Special
	Pass			Mention			Substandard		Doubtful			Total
Residential Mortgage:
Residential mortgage loans - first liens	$	280,094		$	1,246		$	10,464	$	78		$	291,882
Residential mortgage loans - junior liens		20,502			112			552		0			21,166
Home equity lines of credit		35,935			294			400		0			36,629
1-4 Family residential construction		16,719			20			0		0			16,739
Total residential mortgage		353,250			1,672			11,416		78			366,416
Commercial:
Commercial loans secured by real estate		133,204			2,775			9,899		0			145,878
Commercial and Industrial		41,751			7,246			1,042		118			50,157
Political subdivisions		17,534			0			0		0			17,534
Commercial construction and land		4,650			266			2,022		0			6,938
Loans secured by farmland		5,990			433			1,468		25			7,916
Multi-family (5 or more) residential		8,629			288			0		0			8,917
Agricultural loans		3,196			0			25		0			3,221
Other commercial loans		13,248			86			0		0			13,334
Total commercial		228,202			11,094			14,456		143			253,895
Consumer		10,095			22			117		0			10,234
Totals	$	591,547		$	12,788		$	25,989	$	221		$	630,545
31-Dec-13
(In Thousands)				Special
	Pass			Mention			Substandard		Doubtful			Total
Residential Mortgage:
Residential mortgage loans - first liens	$	286,144		$	1,876		$	11,629	$	182		$	299,831
Residential mortgage loans - junior liens		21,694			351			995		0			23,040
Home equity lines of credit		33,821			295			414		0			34,530
1-4 Family residential construction		13,837			0			72		0			13,909
Total residential mortgage		355,496			2,522			13,110		182			371,310
Commercial:
Commercial loans secured by real estate		129,834			5,866			11,368		147			147,215
Commercial and Industrial		32,317			6,697			3,138		235			42,387
Political subdivisions		16,291			0			0		0			16,291
Commercial construction and land		13,792			427			2,036		748			17,003
Loans secured by farmland		8,279			758			1,402		29			10,468
Multi-family (5 or more) residential		10,665			316			4		0			10,985
Agricultural loans		3,169			34			48		0			3,251
Other commercial loans		14,532			99			0		0			14,631
Total commercial		228,879			14,197			17,996		1,159			262,231
Consumer		10,587			6			169		0			10,762
Totals	$	594,962		$	16,725		$	31,275	$	1,341		$	644,303
The scope of loans evaluated individually for impairment include all loan relationships greater than $200,000 for which there is at least one extension of credit graded Special Mention, Substandard or Doubtful. Also, all loans classified as troubled debt restructurings (discussed in more detail below) and all loan relationships less than $200,000 in the aggregate, but with an estimated loss of $100,000 or more, are individually evaluated for impairment. Loans that are individually evaluated for impairment, but which are not determined to be impaired, are combined with all remaining loans that are not reviewed on a specific basis, and such loans are included within larger pools of loans based on similar risk and loss characteristics for purposes of determining the general component of the allowance. The loans that have been individually evaluated, but which have not been determined to be impaired, are included in the “Collectively Evaluated” column in the table summarizing the allowance and associated loan balances as of December 31, 2014 and 2013.
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 December 31, 2014 and 2013:
31-Dec-14	Loans:								Allowance for Loan Losses:
(In Thousands)
	Individually			Collectively					Individually			Collectively
	Evaluated			Evaluated			Totals		Evaluated			Evaluated		Totals
Residential mortgage:
Residential mortgage loans - first liens	$	1,665		$	290,217		$	291,882	$	358		$	2,583	$	2,941
Residential mortgage loans - junior liens		17			21,149			21,166		0			176		176
Home equity lines of credit		0			36,629			36,629		0			322		322
1-4 Family residential construction		0			16,739			16,739		0			214		214
Total residential mortgage		1,682			364,734			366,416		358			3,295		3,653
Commercial:
Commercial loans secured by real estate		6,537			139,341			145,878		16			1,742		1,758
Commercial and industrial		663			49,494			50,157		82			606		688
Political subdivisions		0			17,534			17,534		0			0		0
Commercial construction and land		1,939			4,999			6,938		211			72		283
Loans secured by farmland		1,470			6,446			7,916		102			63		165
Multi-family (5 or more) residential		0			8,917			8,917		0			87		87
Agricultural loans		25			3,196			3,221		0			31		31
Other commercial loans		0			13,334			13,334		0			131		131
Total commercial		10,634			243,261			253,895		411			2,732		3,143
Consumer		0			10,234			10,234		0			145		145
Unallocated															395
Total	$	12,316		$	618,229		$	630,545	$	769		$	6,172	$	7,336
31-Dec-13	Loans:								Allowance for Loan Losses:
(In Thousands)
	Individually			Collectively					Individually			Collectively
	Evaluated			Evaluated			Totals		Evaluated			Evaluated		Totals
Residential mortgage:
Residential mortgage loans - first liens	$	2,727		$	297,104		$	299,831	$	449		$	2,525	$	2,974
Residential mortgage loans - junior liens		183			22,857			23,040		100			194		294
Home equity lines of credit		0			34,530			34,530		0			269		269
1-4 Family residential construction		0			13,909			13,909		0			168		168
Total residential mortgage		2,910			368,400			371,310		549			3,156		3,705
Commercial:
Commercial loans secured by real estate		7,988			139,227			147,215		1,577			1,546		3,123
Commercial and industrial		1,276			41,111			42,387		106			485		591
Political subdivisions		0			16,291			16,291		0			0		0
Commercial construction and land		2,776			14,227			17,003		72			195		267
Loans secured by farmland		1,318			9,150			10,468		29			86		115
Multi-family (5 or more) residential		0			10,985			10,985		0			103		103
Agricultural loans		48			3,203			3,251		0			30		30
Other commercial loans		0			14,631			14,631		0			138		138
Total commercial		13,406			248,825			262,231		1,784			2,583		4,367
Consumer		5			10,757			10,762		0			193		193
Unallocated															398
Total	$	16,321		$	627,982		$	644,303	$	2,333		$	5,932	$	8,663
Summary information related to impaired loans as of December 31, 2014 and 2013 is as follows:
(In Thousands)	2014			2013
Impaired loans with a valuation allowance	$	3,241		$	9,889
Impaired loans without a valuation allowance		9,075			6,432
Total impaired loans	$	12,316		$	16,321
Valuation allowance related to impaired loans	$	769		$	2,333
Additional summary information related to impaired loans for 2014, 2013 and 2012 is as follows:
(In Thousands)	2014			2013			2012
Average investment in impaired loans	$	14,359		$	9,690		$	7,209
Interest income recognized on impaired loans	$	703		$	426		$	278
Interest income recognized on a cash basis on impaired loans	$	703		$	426		$	278
The breakdown by portfolio segment and class of nonaccrual loans and loans past due ninety days or more and still accruing is as follows:
(In Thousands)	31-Dec-14						31-Dec-13
	Past Due						Past Due
	90+ Days and						90+ Days and
	Accruing			Nonaccrual			Accruing		Nonaccrual
Residential mortgage:
Residential mortgage loans - first liens	$	1,989		$	3,440		$	2,016	$	3,533
Residential mortgage loans - junior liens		82			50			187		110
Home equity lines of credit		49			22			87		62
1-4 Family residential construction		0			0			0		72
Total residential mortgage		2,120			3,512			2,290		3,777
Commercial:
Commercial loans secured by real estate		653			5,804			744		7,096
Commercial and industrial		5			379			17		434
Commercial construction and land		35			1,915			5		2,663
Loans secured by farmland		0			951			0		902
Agricultural loans		0			25			0		35
Total commercial		693			9,074			766		11,130
Consumer		30			24			75		27
Totals	$	2,843		$	12,610		$	3,131	$	14,934
The amounts shown in the table immediately above include loans classified as troubled debt restructurings (described in more detail below), if such loans are considered past due ninety days or more, or nonaccrual.
The tables below present a summary of the contractual aging of loans as of December 31, 2014 and 2013:
	As of December 31, 2014											As of December 31, 2013
	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	$	282,766		$	5,443		$	3,673	$	291,882		$	289,483	$	6,776	$	3,572	$	299,831
Residential mortgage loans - junior liens		20,853			190			123		21,166			22,247		506		287		23,040
Home equity lines of credit		36,300			258			71		36,629			34,263		118		149		34,530
1-4 Family residential construction		16,739			0			0		16,739			13,837		0		72		13,909
Total residential mortgage		356,658			5,891			3,867		366,416			359,830		7,400		4,080		371,310
Commercial:
Commercial loans secured by real estate		143,713			883			1,282		145,878			145,055		405		1,755		147,215
Commercial and industrial		49,994			43			120		50,157			41,730		434		223		42,387
Political subdivisions		17,534			0			0		17,534			16,291		0		0		16,291
Commercial construction and land		4,897			91			1,950		6,938			14,303		32		2,668		17,003
Loans secured by farmland		6,811			254			851		7,916			9,267		329		872		10,468
Multi-family (5 or more) residential		8,720			197			0		8,917			10,985		0		0		10,985
Agricultural loans		3,105			91			25		3,221			3,203		13		35		3,251
Other commercial loans		13,334			0			0		13,334			14,631		0		0		14,631
Total commercial		248,108			1,559			4,228		253,895			255,465		1,213		5,553		262,231
Consumer		10,164			40			30		10,234			10,516		171		75		10,762
Totals	$	614,930		$	7,490		$	8,125	$	630,545		$	625,811	$	8,784	$	9,708	$	644,303
Nonaccrual loans are included in the contractual aging immediately above. A summary of the contractual aging of nonaccrual loans at December 31, 2014 and 2013 is as follows:
	Current &
(In Thousands)	Past Due			Past Due			Past Due
	Less than			30-89			90+
	30 Days			Days			Days		Total
December 31, 2014 Nonaccrual Totals	$	6,959		$	369		$	5,282	$	12,610
December 31, 2013 Nonaccrual Totals	$	7,878		$	479		$	6,577	$	14,934
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 the contractual aging information at December 31, 2014 and 2013 is as follows:
Troubled Debt Restructurings (TDRs):
	Current &
(In Thousands)	Past Due			Past Due			Past Due
	Less than			30-89			90+
	30 Days			Days			Days		Nonaccrual			Total
December 31, 2014 Totals	$	1,725		$	82		$	0	$	5,388		$	7,195
December 31, 2013 Totals	$	3,254		$	13		$	0	$	908		$	4,175
A summary of TDRs that occurred during 2014, 2013 and 2012 is as follows:
Year Ended December 31, 2014				Pre-			Post-
(Balances in Thousands)				Modification			Modification
	Number			Outstanding			Outstanding
	of			Recorded			Recorded
	Contracts			Investment			Investment
Residential mortgage,
Residential mortgage loans - first liens		3		$	150		$	150
Commercial:
Commercial loans secured by real estate		5			6,679			5,193
Commercial and industrial		1			80			80
Year Ended December 31, 2013				Pre-			Post-
(Balances in Thousands)				Modification			Modification
	Number			Outstanding			Outstanding
	of			Recorded			Recorded
	Contracts			Investment			Investment
Residential mortgage:
Residential mortgage loans - first liens		6		$	677		$	677
Residential mortgage loans - junior liens		3			102			102
Commercial:
Commercial loans secured by real estate		2			866			866
Commercial and industrial		3			701			701
Loans secured by farmland		4			512			512
Agricultural loans		1			13			13
Consumer		1			6			6
Year Ended December 31, 2012				Pre-			Post-
(Balances in Thousands)				Modification			Modification
	Number			Outstanding			Outstanding
	of			Recorded			Recorded
	Contracts			Investment			Investment
Commercial,
Commercial and industrial		1		$	65		$	65
The TDRs that occurred in 2014 related to residential mortgage loans that included a reduction in payment amount on one contract, an interest only period on one contract and a reduction in interest rate and payment on one contract. The TDRs related to commercial loans in the period ended December 31, 2014 relate to six contracts associated with one relationship. The Corporation entered into a forbearance agreement with this commercial borrower which includes a reduction in monthly payment amounts over a fifteen-month period. At the end of the fifteen-month period, the monthly payment amounts would revert to the original amounts, unless the forbearance agreement is extended or the payment requirements are otherwise modified. The Corporation recorded a charge-off of $1,486,000 in the second quarter 2014 as a result of these modifications, as the payment amounts based on the forbearance agreement are not sufficient to fully amortize the contractual amount of principal outstanding on the loans. The amount of the charge-off was determined based on the excess of the contractual principal due over the present value of the payment amounts provided for in the forbearance agreement, assuming the revised payment amounts would continue until maturity, at the contractual interest rates. After the effect of the $1,486,000 charge-off related to loans to one commercial borrower described above, there was no allowance for loan losses on loans to that borrower at December 31, 2014, while the allowance on the loans amounted to $1,552,000 at December 31, 2013. There were no other changes in the allowance for loan losses related to TDRs that occurred during the year ended December 31, 2014.
The TDRs in 2013 included interest only payments for an extended period of time on fourteen contracts, extensions of the final maturity date on three contracts, reduction in interest rate on two contracts, and reduction in payment amount for one year on one contract. There was no allowance for loan losses on these loans at December 31, 2013 and no change in the allowance for loan losses resulting from these TDRs in the year ended December 31, 2013.
The TDR in 2012 was an extension of the final maturity date and reduction of monthly payments required on the commercial loan. There was no allowance for loan losses on this loan at December 31, 2012. This loan was charged off in 2013, and there had been no allowance for loan losses on this loan prior to charge-off.
In 2012, there were no defaults on loans for which modifications considered to be TDRs were entered into within the previous 12 months. For 2014 and 2013, defaults on loans for which modifications considered to be TDRs were entered into within the previous 12 months are summarized as follows:
	Number
	Of			Recorded
	Contracts			Investment
Year Ended December 31, 2014
(Balances in Thousands)
Residential mortgage:
Residential mortgage loans - first liens		3		$	257
Residential mortgage loans - junior liens		1			62
Commercial:
Commercial loans secured by real estate		1			429
Commercial construction and land		1			25
Loans secured by farmland		4			490
Agricultural loans		1			13
	Number
	Of			Recorded
	Contracts			Investment
Year Ended December 31, 2013
(Balances in Thousands)
Residential mortgage,
Residential mortgage loans - first liens		1		$	85
Commercial,
Commercial loans secured by real estate		2			588
Commercial construction and land		1			110
Agricultural loans		1			13
The events of default in 2014 in the table listed above included the borrowers’ failure to make timely payments under the following circumstances: (1) for one customer relationship including one of the first lien Residential mortgages, the junior lien Residential mortgage, the Loans secured by farmland and the Agricultural loan, monthly payments of interest only were missed; however, in the fourth quarter 2014, the total principal balance of all of the loans except one of the Loans secured by farmland were fully paid off, and the balance on that loan was paid down to a balance at December 31, 2014 of $75,000; (2) for one of the Residential mortgage loans, monthly payments were missed after the interest rate and monthly payment amount had been reduced; (3) for one of the Residential mortgage loans and the Commercial loan secured by real estate, monthly payments of interest only were missed; and (4) for the Commercial construction and land loan, a monthly payment was missed after the term of the loan had been extended. There were no allowances for loan losses recorded on these loans at December 31, 2014.
The events of default in 2013 in the table above included the borrowers’ failure to make timely payments under the following circumstances: (1) for the Residential mortgage loan, the monthly payment amount had been reduced, (2) for the two Commercial loans secured by real estate, monthly payments of interest only were missed, (3) for the Commercial construction and land loan, a monthly payment was missed after the term of the loan had been extended, and (4) for the Agricultural loan, payment at maturity was not made on a loan that had been in interest only status. There were no adjustments to the allowance for loan losses in 2013 as a result of these events of default.
At December 31, 2014 and 2013, the Corporation evaluated loans to the borrowers who defaulted subsequent to restructurings, in determining the specific allowance for loan loss amounts related to the underlying loans. Based on the estimated value of the underlying collateral, net of estimated costs to sell the collateral, the Corporation determined that no allowance for loan losses was required at December 31, 2014 and 2013 for loans for which an event of default had occurred subsequent to restructuring.

Note_9_Bank_Premises_and_Equip

Note 9 - Bank Premises and Equipment	12 Months Ended
	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment Disclosure [Text Block]	9. BANK PREMISES AND EQUIPMENT
	Bank premises and equipment are summarized as follows:
	(In Thousands)	December 31,
		2014			2013
	Land	$	2,818		$	2,818
	Buildings and improvements		26,973			26,869
	Furniture and equipment		17,412			17,087
	Construction in progress		98			2
	Total		47,301			46,776
	Less: accumulated depreciation		(31,045	)		(29,346	)
	Net	$	16,256		$	17,430
	Depreciation expense included in occupancy expense and furniture and equipment expense was as follows:
	(In Thousands)	2014			2013			2012
	Occupancy expense	$	998		$	1,022		$	1,050
	Furniture and equipment expense		942			998			889
	Total	$	1,940		$	2,020		$	1,939

Note_10_Intangible_Assets

Note 10 - Intangible Assets	12 Months Ended
	Dec. 31, 2014
Disclosure Text Block [Abstract]
Intangible Assets Disclosure [Text Block]	10. INTANGIBLE ASSETS
	There were no changes in the carrying amount of goodwill in 2014 and 2013. The balance in goodwill was $11,942,000 at December 31, 2014 and 2013. The Corporation did not complete any acquisitions in 2014 or 2013.
	The Corporation has adopted ASU No. 2011-08, Intangibles – Goodwill and Other (Topic 350) – Testing Goodwill for Impairment. In testing goodwill for impairment as of December 31, 2014, the Corporation assessed qualitative factors to determine whether it is more likely than not that the fair value of its only reporting unit, its community banking operation, is less than its carrying amount. The qualitative factors assessed included the Corporation’s recent financial performance, economic conditions in the Corporation’s market area, macroeconomic conditions and other factors. Based on the assessment of qualitative factors, the Corporation determined that it is not more likely than not that the fair value of the community banking operation has fallen below its carrying value, and therefore, the Corporation did not perform the more detailed, two-step goodwill impairment test described in Topic 350. Accordingly, there was no goodwill impairment as of December 31, 2014.
	Information related to the core deposit intangibles is as follows:
			December 31,
	(In Thousands)		2014			2013
	Gross amount		$	2,034		$	2,034
	Less: accumulated amortization			(1,982	)		(1,947	)
	Net		$	52		$	87
	Amortization expense was $35,000 in 2014, $51,000 in 2013 and $74,000 in 2012. Estimated amortization expense for each of the ensuing five years is as follows:
		(In Thousands)
		2015		$	22
		2016			12
		2017			6
		2018			4
		2019			3

Note_11_Deposits

Note 11 - Deposits	12 Months Ended
	Dec. 31, 2014
Disclosure Text Block [Abstract]
Deposit Liabilities Disclosures [Text Block]	11. DEPOSITS
	At December 31, 2014, the scheduled maturities of time deposits are as follows:
	(In Thousands)
		2015		$	128,966
		2016			64,850
		2017			19,854
		2018			12,128
		2019			8,709
		Thereafter			4,430
				$	238,937
	Included in interest-bearing deposits are time deposits in the amount of $100,000 or more. As of December 31, 2014, the remaining maturities or time to next re-pricing of time deposits of $100,000 or more are as follows:
	(In Thousands)
	Three months or less		$	38,620
	Over 3 months through 12 months			8,910
	Over 1 year through 3 years			11,478
	Over 3 years			8,786
	Total		$	67,794
	Interest expense from time deposits of $100,000 or more amounted to $563,000 in 2014, $721,000 in 2013 and $1,846,000 in 2012.

Note_12_Borrowed_Funds

Note 12 - Borrowed Funds	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	12. BORROWED FUNDS
	SHORT-TERM BORROWINGS
	Short-term borrowings include the following:
	(In Thousands)	Dec. 31,		Dec. 31,
		2014		2013
	FHLB-Pittsburgh borrowings	$	0	$	20,000
	Customer repurchase agreements		5,537		3,385
	Total short-term borrowings	$	5,537	$	23,385
	The weighted average interest rate on total short-term borrowings outstanding was 0.10% at December 31, 2014 and 0.22% at December 31, 2013. The maximum amount of total short-term borrowings outstanding at any month-end was $7,919,000 in 2014, $23,385,000 in 2013 and $20,120,000 in 2012.
	The Corporation had available credit with other correspondent banks totaling $45,000,000 at December 31, 2014 and 2013. These lines of credit are primarily unsecured. No amounts were outstanding at December 31, 2014 or December 31, 2013.
	The Corporation has a line of credit with the Federal Reserve Bank of Philadelphia’s Discount Window. At December 31, 2014, the Corporation had available credit in the amount of $25,367,000 on this line with no outstanding advances. At December 31, 2013 the Corporation had available credit in the amount of $26,078,000 on this line with no outstanding advances. As collateral for this line, the Corporation has pledged available-for-sale securities with the carrying value of $26,092,000 at December 31, 2014 and $27,188,000 at December 31, 2013.
	The FHLB-Pittsburgh loan facilities are collateralized by qualifying loans secured by real estate with a book value totaling $446,780,000 at December 31, 2014 and $453,792,000 at December 31, 2013. Also, the FHLB-Pittsburgh loan facilities require the Corporation to invest in established amounts of FHLB-Pittsburgh stock. The carrying values of the Corporation’s holdings of FHLB-Pittsburgh stock (included in Other Assets) were $1,454,000 at December 31, 2014 and $3,656,000 at December 31, 2013.
	At December 31, 2013, the Corporation had a short-term borrowing from the FHLB-Pittsburgh of $20,000,000. This borrowing matured in January 2014 and had an interest rate of 0.24%.
	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 rate paid by the Corporation on customer repurchase agreements was 0.10% at December 31, 2014 and December 31, 2013. The carrying value of the underlying securities was $15,229,000 at December 31, 2014 and $11,269,000 at December 31, 2013.
	LONG-TERM BORROWINGS
	Long-term borrowings are as follows:
	(In Thousands)	Dec. 31,		Dec. 31,
		2014		2013
	FHLB-Pittsburgh borrowings	$	12,060	$	12,338
	Repurchase agreements		61,000		61,000
	Total long-term borrowings	$	73,060	$	73,338
	Long-term borrowings from FHLB - Pittsburgh are as follows:
	(In Thousands)	Dec. 31,		Dec. 31,
		2014		2013
	Loan maturing in 2016 with a rate of 6.86%	$	107	$	153
	Loan maturing in 2017 with a rate of 6.83%		16		22
	Loan maturing in 2017 with a rate of 3.81%		10,000		10,000
	Loan maturing in 2020 with a rate of 4.79%		987		1,146
	Loan maturing in 2025 with a rate of 4.91%		950		1,017
	Total long-term FHLB-Pittsburgh borrowings	$	12,060	$	12,338
	Repurchase agreements included in long-term borrowings are as follows:
	(In Thousands)	Dec. 31,		Dec. 31,
		2014		2013
	Agreement maturing in 2017 with a rate of 3.595%	$	27,000	$	27,000
	Agreement maturing in 2017 with a rate of 4.265%		34,000		34,000
	Total long-term repurchase agreements	$	61,000	$	61,000
	Each of the repurchase agreements is putable by the issuer at quarterly intervals. The Corporation incurred a loss of $1,023,000 in 2013 on prepayment of $7,000,000 of the agreement with an interest rate of 3.595%. In 2012, the Corporation incurred losses totaling $2,333,000 from prepayment of repurchase agreement obligations, including a loss of $2,190,000 on prepayment of a total $12,000,000 of the agreements shown in the table above.
	Securities sold under repurchase agreements were delivered to the broker-dealer who is the counter-party to the transactions. The broker-dealer may have sold, loaned or otherwise disposed of such securities to other parties in the normal course of their operations, and has agreed to resell to the Corporation substantially identical securities at the maturities of the agreements. The Master Repurchase Agreement between the Corporation and the broker-dealer provides that the Agreement constitutes a “netting contract,” as defined; however, the Corporation and the broker-dealer have no other obligations to one another and accordingly, no netting has occurred. The carrying value of the underlying securities was $70,982,000 at December 31, 2014 and $79,814,000 at December 31, 2013. Average daily repurchase agreement borrowings amounted to $61,000,000 in 2014, $62,630,000 in 2013 and $78,790,000 in 2012. The maximum amounts of outstanding borrowings under repurchase agreements with broker-dealers were $61,000,000 in 2014, $68,000,000 in 2013 and $85,000,000 in 2012. The weighted average interest rate on repurchase agreements was 4.02% in 2014, 4.01% in 2013 and 3.97% in 2012.

Note_13_Employee_and_Postretir

Note 13 - Employee and Postretirement Benefit Plans	12 Months Ended
	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Pension and Other Postretirement Benefits Disclosure [Text Block]	13. EMPLOYEE AND POSTRETIREMENT BENEFIT PLANS
	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. Effective January 1, 2013, this plan was amended so that full-time employees no longer accrue service time toward the Corporation-subsidized portion of the medical benefits. The plan was also amended effective January 1, 2013 to change some of the age and length-of-service requirements for participants to receive some of the benefits provided under the plan. This plan contains a cost-sharing feature, which causes participants to pay for all future increases in costs related to benefit coverage. Accordingly, actuarial assumptions related to health care cost trend rates do not significantly affect the liability balance at December 31, 2014 and December 31, 2013, and are not expected to significantly affect the Corporation's future expenses. The Corporation uses a December 31 measurement date for the postretirement plan.
	In an acquisition in 2007, the Corporation assumed the Citizens Trust Company Retirement Plan, a defined benefit pension plan. This plan covers certain employees who were employed by Citizens Trust Company on December 31, 2002, when the plan was amended to discontinue admittance of any future participant and to freeze benefit accruals. Information related to the Citizens Trust Company Retirement Plan has been included in the tables that follow. The Corporation uses a December 31 measurement date for this plan.
	The following table shows the funded status of the defined benefit plans:
	(In Thousands)
		Pension:						Postretirement:
		2014			2013			2014			2013
	CHANGE IN BENEFIT OBLIGATION:
	Benefit obligation at beginning of year	$	1,733		$	1,783		$	1,391		$	2,081
	Service cost		0			0			34			41
	Interest cost		73			71			57			55
	Plan participants' contributions		0			0			198			208
	Actuarial loss (gain)		76			(104	)		(48	)		(171	)
	Plan amendments		0			0			0			(557	)
	Benefits paid		(16	)		(17	)		(254	)		(266	)
	Settlement of plan obligation		(781	)		0			0			0
	Benefit obligation at end of year	$	1,085		$	1,733		$	1,378		$	1,391
	CHANGE IN PLAN ASSETS:
	Fair value of plan assets at beginning of year	$	1,968		$	1,842		$	0		$	0
	Actual return on plan assets		37			143			0			0
	Employer contribution		0			0			56			58
	Plan participants' contributions		0			0			198			208
	Benefits paid		(16	)		(17	)		(254	)		(266	)
	Settlement of plan obligation		(781	)		0			0			0
	Fair value of plan assets at end of year	$	1,208		$	1,968		$	0		$	0
	Funded (underfunded) status at end of year	$	123		$	235		$	(1,378	)	$	(1,391	)
	In 2014, there was a distribution from the plan of $781,000, or approximately 42% of the plan’s total accumulated benefit obligation prior to the distribution. The Corporation recognized a loss of $196,000 (included in net periodic benefit cost) in 2014 as a result of this settlement.
	At December 31, 2014 and 2013, the following pension plan and postretirement plan asset and liability amounts were recognized in the consolidated balance sheet:
	Assets and liabilities:
	(In Thousands)	Pension:						Postretirement:
		2014			2013			2014			2013
	Other assets	$	123		$	235
	Accrued interest and other liabilities							$	1,378		$	1,391
	At December 31, 2014 and 2013, the following items included in accumulated other comprehensive income (loss) had not been recognized as components of expense:
	(In Thousands)	Pension:						Postretirement:
		2014			2013			2014			2013
	Prior service cost	$	0		$	0		$	(402	)	$	(433	)
	Net actuarial loss		269			357			11			59
	Total	$	269		$	357		$	(391	)	$	(374	)
	For the defined benefit pension plan, amortization of the net actuarial loss is expected to be $10,000 in 2015. For the postretirement plan, the estimated amount of prior service cost that will be amortized from accumulated other comprehensive income into net periodic benefit cost in 2015 is a reduction in expense of $31,000, and no net actuarial loss is expected to be amortized in 2015.
	The accumulated benefit obligation for the defined benefit pension plan was $1,085,000 at December 31, 2014 and $1,733,000 at December 31, 2013.
	The components of net periodic benefit costs from defined benefit plans are as follows:
	(In Thousands)	Pension:									Postretirement:
		2014			2013			2012			2014			2013			2012
	Service cost	$	0		$	0		$	0		$	34		$	41		$	91
	Interest cost		73			71			72			57			55			81
	Expected return on plan assets		(88	)		(90	)		(72	)		0			0			0
	Amortization of transition (asset) obligation		0			0			0			0			0			37
	Amortization of prior service cost		0			0			0			(31	)		(31	)		13
	Recognized net actuarial loss		19			32			27			0			1			0
	Loss on settlement		196			0			0			0			0			0
	Total net periodic benefit cost	$	200		$	13		$	27		$	60		$	66		$	222
	The weighted-average assumptions used to determine net periodic benefit cost are as follows:
		Pension:									Postretirement:
		2014			2013			2012			2014			2013			2012
	Citizens Trust Company Retirement Plan and postretirement plan:
	Discount rate		4.5	%		4	%		4.5	%		4	%		4	%		4.5	%
	Expected return on plan assets		5.31	%		5.31	%		7.5	%		N/A			N/A			N/A
	Rate of compensation increase		N/A			N/A			N/A			N/A			N/A			N/A
	The weighted-average assumptions used to determine benefit obligations as of December 31, 2014 and 2013 are as follows:
		Pension:						Postretirement:
		2014			2013			2014			2013
	Discount rate		3.75	%		4.5	%		4	%		4.75	%
Rate of compensation increase		N/A			N/A			N/A			N/A
Estimated future benefit payments, including only estimated employer contributions for the postretirement plan, which reflect expected future service, are as follows:
(In Thousands)				Pension			Postretirement
2015				$	235		$	88
2016					41			87
2017					16			88
2018					401			97
2019					38			98
		2020-2024			208			515
No estimated minimum contribution to the defined benefit pension plan is required in 2015, though the Corporation may make discretionary contributions.
The expected return on pension plan (Citizens Trust Company Retirement Plan) assets is a significant assumption used in the calculation of net periodic benefit cost. This assumption reflects the average long-term rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the projected benefit obligation.
The fair values of pension plan assets at December 31, 2014 and 2013 are as follows:
	2014			2013
Cash and cash equivalents		3	%		36	%
Debt securities		37	%		24	%
Equity securities		47	%		30	%
Alternative funds		13	%		10	%
Total		100	%		100	%
C&N Bank’s Trust and Financial Management Department manages the investment of the Citizens Trust Company Retirement Plan (pension plan) assets. Most of the Plan’s securities are mutual funds, including mutual funds principally invested in debt securities, mutual funds invested in a diversified mix of large, mid- and small-capitalization U.S. stocks, foreign stocks, and mutual funds invested in alternative asset classes such as real estate, commodities, and inflation-protected securities. The fair values of plan assets are determined based on Level 1 inputs (as described in Note 6). At December 31, 2014 and 2013, the targeted asset allocation for pension plan was 26% equity securities, 61% debt securities, 11% alternative assets and 2% cash. The pension plan’s assets do not include any shares of the Corporation’s common stock.
PROFIT SHARING AND DEFERRED COMPENSATION PLANS
The Corporation has a profit sharing plan that incorporates the deferred salary savings provisions of Section 401(k) of the Internal Revenue Code. The Corporation’s matching contributions to the Plan depend upon the tax deferred contributions of employees. The Corporation’s total basic and matching contributions were $595,000 in 2014, $557,000 in 2013 and $587,000 in 2012.
The Corporation has an Employee Stock Ownership Plan (ESOP). Contributions to the ESOP are discretionary, and the ESOP uses funds contributed to purchase Corporation stock for the accounts of ESOP participants. These purchases are made on the market (not directly from the Corporation), and employees are not permitted to purchase Corporation stock under the ESOP. The ESOP includes a diversification feature, which allows participants, upon reaching age 55 and 10 years of service (as defined), to sell up to 50% of their Corporation shares back to the ESOP over a period of 6 years. As of December 31, 2014 and 2013, there were no shares allocated for repurchase by the ESOP.
Dividends paid on shares held by the ESOP are charged to retained earnings. All Corporation shares owned through the ESOP are included in the calculation of weighted-average shares outstanding for purposes of calculating earnings per share - basic and diluted. The ESOP held 409,197 shares of Corporation stock at December 31, 2014 and 362,888 shares at December 31, 2013, all of which had been allocated to Plan participants. The Corporation’s contributions to the ESOP totaled $512,000 in 2014, $509,000 in 2013 and $507,000 in 2012.
The Corporation also has a nonqualified supplemental deferred compensation arrangement with its key officers. Charges to operating expense for officers’ supplemental deferred compensation were $138,000 in 2014, $186,000 in 2013 and $140,000 in 2012.
STOCK-BASED COMPENSATION PLANS
The Corporation has a Stock Incentive Plan for a selected group of senior officers. A total of 850,000 shares of common stock may be issued under the Stock Incentive Plan. Awards may be made under the Stock Incentive Plan in the form of qualified options (“Incentive Stock Options,” as defined in the Internal Revenue Code), nonqualified options, stock appreciation rights or restricted stock. Historically through December 31, 2014, all awards made under this Plan have consisted of Incentive Stock Options or restricted stock. Incentive Stock Options have an exercise price equal to the market value of the stock at the date of grant, vest after 6 months and expire after 10 years. Restricted stock awards issued under the Stock Incentive Plan vest ratably over terms ranging from 3-4 years, and most of the restricted stock awards issued under this Plan in 2014, 2013 and 2012 include a condition that the Corporation must meet an annual targeted return on average equity (“ROAE”) performance ratio, as defined, in order for participants to vest. The Corporation met the ROAE target for the 2014, 2013 and 2012 plan years. For 2014 restricted stock awards to individuals who are substantially involved in mortgage lending, vesting is not dependent on the Corporation’s ROAE. There are 286,386 shares available for issuance under the Stock Incentive Plan as of December 31, 2014.
Also, the Corporation has an Independent Directors Stock Incentive Plan. This plan permits awards of nonqualified stock options and/or restricted stock to non-employee directors. A total of 135,000 shares of common stock may be issued under the Independent Directors Stock Incentive Plan. The recipients’ rights to exercise stock options under this plan expire 10 years from the date of grant. The exercise prices of all stock options awarded under the Independent Directors Stock Incentive Plan are equal to market value as of the dates of grant. The restricted stock awards granted through the end of 2014 vest ratably over 3 years. There are 30,775 shares available for issuance under the Independent Directors Stock Incentive Plan as of December 31, 2014.
The Corporation records stock option expense based on estimated fair value calculated using the Black-Scholes-Merton option-pricing model with the following assumptions:
	2014			2013			2012
Volatility		39	%		41	%		41	%
Expected option lives (in years)		8			8			7
Risk-free interest rate		2.85	%		1.6	%		1.53	%
Dividend yield		4.33	%		3.69	%		3.97	%
Management estimated the lives for options based on the Corporation’s average historical experience with both plans. The Corporation utilized its historical volatility and dividend yield over the immediately prior 8-year period to estimate future levels of volatility and dividend yield for the 2014 and 2013 awards, and utilized its historical volatility and dividend yield over the immediately prior 7-year period in estimating the value of the 2012 awards. The risk-free interest rate was based on the published yield of zero-coupon U.S. Treasury strips as of the grant date, with a maturity coinciding with the estimated option lives.
Total stock-based compensation expense is as follows:
(In Thousands)	2014			2013			2012
Stock options	$	153		$	242		$	247
Restricted stock		412			454			320
Total	$	565		$	696		$	567
A summary of stock option activity is presented below:
	2014						2013						2012
				Weighted						Weighted						Weighted
				Average						Average						Average
				Exercise						Exercise						Exercise
	Shares			Price			Shares			Price			Shares			Price
Outstanding, beginning of year		358,176		$	19.03			337,670		$	19.08			301,797		$	19.05
Granted		39,027		$	20.45			64,050		$	19.21			64,757		$	18.54
Exercised		(50,415	)	$	17.57			(10,656	)	$	17.22			(17,284	)	$	16.2
Forfeited		(16,424	)	$	20.03			(14,135	)	$	20.13			(6,830	)	$	21.51
Expired		(14,207	)	$	26.59			(18,753	)	$	20.73			(4,770	)	$	17
Outstanding, end of year		316,157		$	19.05			358,176		$	19.03			337,670		$	19.08
Options exercisable at year-end		316,157		$	19.05			358,176		$	19.03			337,670		$	19.08
Weighted-average fair value of options granted				$	5.5					$	5.56					$	5.15
Weighted-average fair value of options forfeited				$	4.89					$	3.77					$	4.03
The weighted-average remaining contractual term of outstanding stock options at December 31, 2014 was 5.4 years. The aggregate intrinsic value of stock options outstanding (excluding options issued at exercise prices greater than the final closing price of the Corporation’s stock in 2014) was $668,000 at December 31, 2014. The total intrinsic value of options exercised was $90,000 in 2014, $29,000 in 2013 and $72,000 in 2012.
The following summarizes non-vested stock options and restricted stock activity as of and for the year ended December 31, 2014:
	Stock Options						Restricted Stock
				Weighted						Weighted
				Average						Average
	Number			Grant Date			Number			Grant Date
	of Shares			Fair Value			of Shares			Fair Value
Outstanding, December 31, 2013		0						67,878		$	18.67
Granted		39,027		$	5.5			16,711		$	20.4
Vested		(39,027	)	$	5.5			(24,695	)	$	18.18
Forfeited		0						(7,458	)	$	19.47
Outstanding, December 31, 2014		0						52,436		$	19.34
Compensation cost related to restricted stock is recognized based on the market price of the stock at the grant date over the vesting period. As of December 31, 2014, there was $604,000 total unrecognized compensation costs related to restricted stock, which is expected to be recognized over a weighted average period of 1.5 years.
In the first two months of 2015, the Corporation awarded 22,496 shares of restricted stock under the Stock Incentive Plan and 7,130 shares of restricted stock under the Independent Directors Stock Incentive Plans. The 2015 restricted stock awards under the Stock Incentive Plan vest ratably over four years, and vesting for 20,298 of the restricted shares depends on the Corporation meeting a ROAE target each year. The 2015 restricted stock issued under the Independent Directors Stock Incentive Plan vests over one year. Total estimated stock-based compensation for 2015 is $628,000. The restricted stock awards made in the first two months of 2015 are not included in the tables above.
The Corporation has issued shares from treasury stock for almost all stock option exercises through December 31, 2014. Management does not anticipate that stock repurchases will be necessary to accommodate stock option exercises in 2015.

Note_14_Income_Taxes

Note 14 - Income Taxes	12 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	14. INCOME TAXES
	The net deferred tax asset at December 31, 2014 and 2013 represents the following temporary difference components:
		December 31,			December 31,
	(In Thousands)	2014			2013
	Deferred tax assets:
	Unrealized holding losses on securities	$	0		$	541
	Net realized losses on securities		144			91
	Allowance for loan losses		2,568			3,032
	Credit for alternative minimum tax paid		537			1,905
	Other deferred tax assets		2,595			2,332
	Total deferred tax assets		5,844			7,901
	Deferred tax liabilities:
	Unrealized holding gains on securities		2,844			0
	Defined benefit plans - ASC 835		43			6
	Bank premises and equipment		1,134			1,314
	Core deposit intangibles		18			30
	Other deferred tax liabilities		137			207
	Total deferred tax liabilities		4,176			1,557
	Deferred tax asset, net	$	1,668		$	6,344
	The provision for income taxes includes the following:
	(In thousands)	2014			2013			2012
	Currently payable	$	4,280		$	4,125		$	4,545
	Tax expense resulting from allocations of certain tax benefits to equity or as a reduction in other assets		158			219			121
	Deferred		1,254			1,839			3,760
	Total provision	$	5,692		$	6,183		$	8,426
	A reconciliation of income tax at the statutory rate to the Corporation’s effective rate is as follows (amounts in thousands):
	(Amounts in thousands)	2014						2013						2012
		Amount			%			Amount			%			Amount			%
	Expected provision	$	7,973			35		$	8,672			35		$	10,896			35
	Tax-exempt interest income		(1,982	)		(8.70	)		(2,137	)		(8.62	)		(2,287	)		(7.35	)
	Nondeductible interest expense		56			0.25			60			0.24			92			0.3
	Dividends received deduction		(79	)		(0.35	)		(76	)		(0.31	)		(78	)		(0.25	)
	Increase in cash surrender value of life insurance		(132	)		(0.58	)		(140	)		(0.57	)		(159	)		(0.51	)
	Employee stock option compensation		41			0.18			67			0.27			62			0.2
	Tax benefit from limited partnership investment		(83	)		(0.36	)		(85	)		(0.34	)		0			0
	Other, net		(101	)		(0.45	)		(178	)		(0.72	)		(100	)		(0.32	)
	Effective income tax provision	$	5,692			24.99		$	6,183			24.95		$	8,426			27.07
	The Corporation has investments in three limited partnerships that manage affordable housing projects that have qualified for the federal low-income housing tax credit. The Corporation’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 of the three limited partnership investments, the tax credits have been received in full in prior years, and the Corporation has fully realized the benefits of the credits and amortized its initial investments in the partnerships. The most recent affordable housing project was completed in 2013, and the Corporation expects to receive tax credits over a 10-year period beginning in 2013. At December 31, 2014, the carrying amount of the Corporation’s investment is $906,000 (included in Other Assets in the consolidated balance sheets). In 2013, the Corporation received tax credits and other tax benefits totaling $160,000, and recognized a reduction of the provision for income tax of $85,000. The estimated amount of tax credits and other tax benefits to be received for 2014 is $159,000, and the amount recognized as a reduction of the provision for income taxes for 2014 is $83,000.
	The Corporation has no unrecognized tax benefits, nor pending examination issues related to tax positions taken in preparation of its income tax returns. With limited exceptions, the Corporation is no longer subject to examination by the Internal Revenue Service for years prior to 2011.

Note_15_Related_Party_Transact

Note 15 - Related Party Transactions	12 Months Ended
	Dec. 31, 2014
Related Party Transactions [Abstract]
Related Party Transactions Disclosure [Text Block]	15. RELATED PARTY TRANSACTIONS
	Loans to executive officers, directors of the Corporation and its subsidiaries and any associates of the foregoing persons are as follows:
	(In Thousands)	Beginning		New					Other		Ending
		Balance		Loans		Repayments			Changes		Balance
	12 directors, 8 executive officers 2014	$	12,547	$	188	$	(1,358	)	$	646	$	12,023
	11 directors, 8 executive officers 2013		14,125		1,110		(2,723	)		35		12,547
	11 directors, 7 executive officers 2012		12,997		2,517		(1,424	)		35		14,125
	The above transactions were made in the ordinary course of business on substantially the same terms, including interest rates and collateral, as those prevailing at the time for comparable transactions with other persons and do not involve more than normal risks of collectability. Other changes represent net increases in existing lines of credit and transfers in and out of the related party category.
	Deposits from related parties held by the Corporation amounted to $3,203,000 at December 31, 2014 and $3,897,000 at December 31, 2013.

Note_16_Offbalance_Sheet_Risk

Note 16 - Off-balance Sheet Risk	12 Months Ended
	Dec. 31, 2014
Disclosure Text Block Supplement [Abstract]
Supplemental Balance Sheet Disclosures [Text Block]	16. OFF-BALANCE SHEET RISK
	The Corporation is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financial needs of its customers. These financial instruments include commitments to extend credit and standby letters of credit. These instruments involve, to varying degrees, elements of credit, interest rate or liquidity risk in excess of the amount recognized in the consolidated balance sheet. The contract amounts of these instruments express the extent of involvement the Corporation has in particular classes of financial instruments.
	The Corporation’s exposure to credit loss from nonperformance by the other party to the financial instruments for commitments to extend credit and standby letters of credit is represented by the contractual amount of these instruments. The Corporation uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments.
	Financial instruments whose contract amounts represent credit risk at December 31, 2014 and 2013 are as follows:
	(In Thousands)	2014		2013
	Commitments to extend credit	$	143,863	$	139,866
	Standby letters of credit		13,415		21,590
	Commitments to extend credit are legally binding agreements to lend to customers. Commitments generally have fixed expiration dates or other termination clauses and may require payment of fees. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future liquidity requirements. The Corporation evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Corporation, for extensions of credit is based on management’s credit assessment of the counterparty.
	Standby letters of credit are conditional commitments issued by the Corporation guaranteeing performance by a customer to a third party. Those guarantees are issued primarily to support public and private borrowing arrangements, including commercial paper, bond financing and similar transactions. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. Some of the standby letters of credit are collateralized by real estate or other assets, and others are unsecured. The extent to which proceeds from liquidation of collateral would be expected to cover the maximum potential amount of future payments related to standby letters of credit is not estimable. The Corporation has recorded no liability associated with standby letters of credit as of December 31, 2014 and 2013.
	Standby letters of credit as of December 31, 2014 expire as follows:
		Amount
	Year of Expiration	(In Thousands)
	2015	$	8,932
	2016		2,183
	2017		60
	2019		30
	2020 and Thereafter		2,210
	Total	$	13,415

Note_17_Contingencies

Note 17 - Contingencies	12 Months Ended
	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Text Block]	17. CONTINGENCIES
	In the normal course of business, the Corporation is subject to pending and threatened litigation in which claims for monetary damages are asserted. In management’s opinion, the Corporation’s financial position and results of operations would not be materially affected by the outcome of these legal proceedings.

Note_18_Regulatory_Matters

Note 18 - Regulatory Matters	12 Months Ended
	Dec. 31, 2014
Disclosure Text Block [Abstract]
Regulatory Capital Requirements under Banking Regulations [Text Block]	18. REGULATORY MATTERS
	The Corporation (on a consolidated basis) and C&N Bank are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory - and possibly additional discretionary - actions by regulators that, if undertaken, could have a direct material effect on the Corporation’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Corporation and C&N Bank must meet specific capital guidelines that involve quantitative measures of their assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. Prompt corrective action provisions are not applicable to bank holding companies.
	Quantitative measures established by regulation to ensure capital adequacy require the Corporation and C&N Bank to maintain minimum amounts and ratios (set forth in the following table) of total and Tier I capital (as defined in the regulations) to risk-weighted assets (as defined) and of Tier I capital (as defined) to average assets (as defined). Management believes, as of December 31, 2014 and 2013, that the Corporation and C&N Bank meet all capital adequacy requirements to which they are subject.
	To be categorized as well capitalized, an institution must maintain minimum total risk based, Tier I risk based and Tier I leverage ratios as set forth in the following table. The Corporation’s and C&N Bank’s actual capital amounts and ratios are also presented in the following table:
										Minimum To Be Well
	(Dollars in Thousands)						Minimum			Capitalized Under
							Capital			Prompt Corrective
		Actual					Requirement			Action Provisions
		Amount		Ratio			Amount		Ratio	Amount		Ratio
	December 31, 2014:
	Total capital to risk-weighted assets:
	Consolidated	$	179,588		27.6	%	$	52,051	>8%		n/a	n/a
	C&N Bank		156,420		24.33	%		51,442	>8%	$	64,303	>10%
	Tier 1 capital to risk-weighted assets:
	Consolidated		170,880		26.26	%		26,026	>4%		n/a	n/a
	C&N Bank		149,055		23.18	%		25,721	>4%		38,582	>6%
	Tier 1 capital to average assets:
	Consolidated		170,880		13.89	%		49,224	>4%		n/a	n/a
	C&N Bank		149,055		12.22	%		48,798	>4%		60,998	>5%
	December 31, 2013:
	Total capital to risk-weighted assets:
	Consolidated	$	177,693		26.6	%	$	53,449	>8%		n/a	n/a
	C&N Bank		162,610		24.65	%		52,783	>8%	$	65,979	>10%
	Tier 1 capital to risk-weighted assets:
	Consolidated		168,039		25.15	%		26,724	>4%		n/a	n/a
	C&N Bank		154,323		23.39	%		26,392	>4%		39,588	>6%
	Tier 1 capital to average assets:
	Consolidated		168,039		13.78	%		48,783	>4%		n/a	n/a
	C&N Bank		154,323		12.77	%		48,348	>4%		60,435	>5%
	Banking regulators limit the amount of dividends that may be paid by C&N Bank to the Corporation. Retained earnings against which dividends may be paid without prior approval of the banking regulators amounted to approximately $84,022,000 at December 31, 2014, subject to the minimum capital ratio requirements noted above.
	Restrictions imposed by federal law prohibit the Corporation from borrowing from C&N Bank unless the loans are secured in specific amounts. Such secured loans to the Corporation are generally limited to 10% of C&N Bank’s tangible stockholder’s equity (excluding accumulated other comprehensive income) or $15,580,000 at December 31, 2014.

Note_19_Parent_Company_Only

Note 19 - Parent Company Only	12 Months Ended
	Dec. 31, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Financial Information of Parent Company Only Disclosure [Text Block]	19. PARENT COMPANY ONLY
	The following is condensed financial information for Citizens & Northern Corporation:
	CONDENSED BALANCE SHEET	December 31,
	(In Thousands)	2014			2013
	ASSETS
	Cash	$	9,624		$	2,297
	Investment in subsidiaries:
	Citizens & Northern Bank		164,551			163,711
	Citizens & Northern Investment Corporation		10,822			10,216
	Bucktail Life Insurance Company		3,336			3,254
	Other assets		36			0
	TOTAL ASSETS	$	188,369		$	179,478
	LIABILITIES AND STOCKHOLDERS' EQUITY
	Other liabilities	$	7		$	6
	Stockholders' equity		188,362			179,472
	TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$	188,369		$	179,478
	CONDENSED INCOME STATEMENT
	(In Thousands)	2014			2013			2012
	Dividends from Citizens & Northern Bank	$	22,608		$	11,108		$	9,245
	Expenses		(112	)		(108	)		(105	)
	Income before equity in undistributed income of subsidiaries		22,496			11,000			9,140
	Equity in undistributed (loss) income of subsidiaries		(5,410	)		7,594			13,565
	NET INCOME	$	17,086		$	18,594		$	22,705
	CONDENSED STATEMENT OF CASH FLOWS
	(In Thousands)
		2014			2013			2012
	CASH FLOWS FROM OPERATING ACTIVITIES:
	Net income	$	17,086		$	18,594		$	22,705
	Adjustments to reconcile net income to net cash provided by operating activities:
	Equity in undistributed net loss (income) of Subsidiaries		5,410			(7,594	)		(13,565	)
	(Increase) decrease in other assets		(36	)		7			116
	Increase in other liabilities		1			0			6
	Net Cash Provided by Operating Activities		22,461			11,007			9,262
	CASH FLOWS FROM FINANCING ACTIVITIES:
	Proceeds from sale of treasury stock		123			184			229
	Tax benefit from compensation plans, net		137			127			104
	Purchase of treasury stock		(4,002	)		0			0
	Dividends paid		(11,392	)		(10,916	)		(9,061	)
	Net Cash Used in Financing Activities		(15,134	)		(10,605	)		(8,728	)
	INCREASE IN CASH AND CASH EQUIVALENTS		7,327			402			534
	CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR		2,297			1,895			1,361
	CASH AND CASH EQUIVALENTS, END OF YEAR	$	9,624		$	2,297		$	1,895

Note_20_Summary_of_Quarterly_C

Note 20 - Summary of Quarterly Consolidated Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information [Text Block]	20. SUMMARY OF QUARTERLY CONSOLIDATED FINANCIAL DATA (Unaudited)
	The following table presents summarized quarterly financial data for 2014 and 2013:
		2014 Quarter Ended
		Mar. 31,			June 30,		Sept. 30,		Dec. 31,
	Interest income	$	11,406		$	11,563	$	11,572	$	11,468
	Interest expense		1,288			1,290		1,287		1,257
	Net interest income		10,118			10,273		10,285		10,211
	(Credit) provision for loan losses		(311	)		446		218		123
	Net interest income after (credit) provision for loan losses		10,429			9,827		10,067		10,088
	Other income		3,751			3,980		3,887		3,802
	Net gains on available-for-sale securities		31			103		760		210
	Loss on prepayment of debt		-			-		-		-
	Other expenses		8,524			8,347		9,036		8,250
	Income before income tax provision		5,687			5,563		5,678		5,850
	Income tax provision		1,399			1,400		1,411		1,482
	Net income available to common shareholders	$	4,288		$	4,163	$	4,267	$	4,368
	Net income per share – basic	$	0.35		$	0.33	$	0.34	$	0.36
	Net income per share – diluted	$	0.34		$	0.33	$	0.34	$	0.35
		2013 Quarter Ended
		Mar. 31,			June 30,		Sept. 30,		Dec. 31,
	Interest income	$	12,647		$	12,355	$	12,027	$	11,885
	Interest expense		1,600			1,415		1,396		1,354
	Net interest income		11,047			10,940		10,631		10,531
	(Credit) provision for loan losses		183			66		239		1,559
	Net interest income after (credit) provision for loan losses		10,864			10,874		10,392		8,972
	Other income		3,843			4,191		4,293		4,124
	Net gains on available-for-sale securities		1,159			100		193		266
	Loss on prepayment of debt		1,023			0		0		0
	Other expenses		8,553			8,520		8,610		7,788
	Income before income tax provision		6,290			6,645		6,268		5,574
	Income tax provision		1,584			1,671		1,579		1,349
	Net income available to common shareholders	$	4,706		$	4,974	$	4,689	$	4,225
	Net income per share – basic	$	0.38		$	0.4	$	0.38	$	0.34
	Net income per share – diluted	$	0.38		$	0.4	$	0.38	$	0.34

Accounting_Policies_by_Policy_

Accounting Policies, by Policy (Policies)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	BASIS OF CONSOLIDATION - The consolidated financial statements include the accounts of Citizens & Northern Corporation and its subsidiaries, Citizens & Northern Bank (“C&N Bank”), Bucktail Life Insurance Company and Citizens & Northern Investment Corporation (collectively, “Corporation”), as well as C&N Bank’s wholly-owned subsidiary, C&N Financial Services Corporation. All material intercompany balances and transactions have been eliminated in consolidation.
Nature of Operations [Policy Text Block]	NATURE OF OPERATIONS - The Corporation is primarily engaged in providing a full range of banking and mortgage services to individual and corporate customers in North Central Pennsylvania and Southern New York State. Lending products include mortgage loans, commercial loans and consumer loans, as well as specialized instruments such as commercial letters-of-credit. Deposit products include various types of checking accounts, passbook and statement savings, money market accounts, interest checking accounts, Individual Retirement Accounts and certificates of deposit. The Corporation also offers non-insured “RepoSweep” accounts.
	The Corporation provides Trust and Financial Management services, including administration of trusts and estates, retirement plans, and other employee benefit plans, and investment management services. The Corporation offers a variety of personal and commercial insurance products through C&N Financial Services Corporation. C&N Financial Services Corporation also offers mutual funds, annuities, educational savings accounts and other investment products through registered agents. Management has determined that the Corporation has one reportable segment, “Community Banking.” All of the Corporation’s activities are interrelated, and each activity is dependent and assessed based on how each of the activities of the Corporation supports the others.
	The Corporation is subject to competition from other financial institutions. It is also subject to regulation by certain federal and state agencies and undergoes periodic examination by those regulatory authorities. As a consequence, the Corporation’s business is particularly susceptible to being affected by future federal and state legislation and regulations.
Use of Estimates, Policy [Policy Text Block]	USE OF ESTIMATES - The financial information is presented in accordance with generally accepted accounting principles and general practice for financial institutions in the United States of America. In preparing financial statements, management is required to make estimates and assumptions that affect the reported amount of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements. In addition, these estimates and assumptions affect revenues and expenses in the financial statements and as such, actual results could differ from those estimates.
	Material estimates that are particularly susceptible to change include: (1) the allowance for loan losses, (2) fair values of debt securities based on estimates from independent valuation services or from brokers, (3) assessment of impaired securities to determine whether or not the securities are other-than-temporarily impaired, (4) valuation of deferred tax assets and (5) valuation of obligations from defined benefit plans.
Marketable Securities, Policy [Policy Text Block]	INVESTMENT SECURITIES - Investment securities are accounted for as follows:
	Available-for-sale securities - includes debt securities not classified as held-to-maturity or trading, and unrestricted equity securities. Such securities are reported at fair value, with unrealized gains and losses excluded from earnings and reported separately through accumulated other comprehensive income, net of tax. Amortization of premiums and accretion of discounts on available-for-sale securities are recorded using the level yield method over the remaining contractual life of the securities, adjusted for actual prepayments. Realized gains and losses on sales of available-for-sale securities are computed on the basis of specific identification of the adjusted cost of each security. Securities within the available-for-sale portfolio may be used as part of the Corporation’s asset and liability management strategy and may be sold in response to changes in interest rate risk, prepayment risk or other factors.
	Other-than-temporary impairment - Declines in the fair value of available-for-sale securities that are deemed to be other-than-temporary are reflected in earnings as realized losses. In estimating other-than-temporary impairment losses, management considers (1) the length of time and the extent to which the fair value has been less than cost, (2) the financial condition and near-term prospects of the issuer, (3) the intent and ability of the Corporation to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value, and (4) whether the Corporation intends to sell the security or if it is more likely than not that the Corporation will be required to sell the security before the recovery of its amortized cost basis. The credit-related impairment is recognized in earnings and is the difference between a security’s amortized cost basis and the present value of expected future cash flows discounted at the security’s effective interest rate. For debt securities classified as held-to-maturity, if any, the amount of noncredit-related impairment is recognized in other comprehensive income and accreted over the remaining life of the debt security as an increase in the carrying value of the security. In addition, the risk of future other-than-temporary impairment may be influenced by additional bank failures, prolonged recession in the U.S. economy, changes to real estate values, interest deferrals and whether the federal government provides assistance to financial institutions.
	Restricted equity securities - Restricted equity securities consist primarily of Federal Home Loan Bank of Pittsburgh stock, and are carried at cost and evaluated for impairment. Holdings of restricted equity securities are included in Other Assets in the Consolidated Balance Sheet, and dividends received on restricted securities are included in Other Income in the Consolidated Statement of Income.
Finance, Loan and Lease Receivables, Held-for-sale, Policy [Policy Text Block]	LOANS HELD FOR SALE - Mortgage loans held for sale are reported at the lower of cost or market, determined in the aggregate.
Finance, Loans and Leases Receivable, Policy [Policy Text Block]	LOANS RECEIVABLE - Loans receivable which management has the intent and ability to hold for the foreseeable future or until maturity or payoff are stated at unpaid principal balances, less the allowance for loan losses and net deferred loan fees. Interest income is accrued on the unpaid principal balance. Loan origination and commitment fees, as well as certain direct origination costs, are deferred and amortized as a yield adjustment over the lives of the related loans using the interest method.
	The loans receivable portfolio is segmented into residential mortgage, commercial and consumer loans. The residential mortgage segment includes the following classes: first and junior lien residential mortgages, home equity lines of credit and residential construction loans. The most significant classes of commercial loans are commercial loans secured by real estate, non-real estate secured commercial and industrial loans, loans to political subdivisions, commercial construction, and loans secured by farmland.
	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 recognized on specific impaired loans unless the likelihood of further loss is remote. Interest payments received on loans for which the risk of further loss is greater than remote are applied as a reduction of the loan principal balance. Interest income on other nonaccrual 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 months) and the ultimate collectability of the total contractual principal and interest is no longer in doubt. The past due status of all classes of loans receivable is determined based on contractual due dates for loan payments. Also, the amortization of deferred loan fees is discontinued when a loan is placed on nonaccrual status.
Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block]	ALLOWANCE FOR LOAN LOSSES - The allowance for loan losses represents management’s estimate of losses inherent in the loan portfolio as of the balance sheet date and is recorded as a reduction to loans. The allowance for loan losses is increased by the provision for loan losses, and decreased by charge-offs, net of recoveries. Loans deemed to be uncollectible are charged against the allowance for loan losses, and subsequent recoveries, if any, are credited to the allowance. All, or part, of the principal balance of loans receivable are charged off to the allowance as soon as it is determined that the repayment of all, or part, of the principal balance is highly unlikely. Non-residential consumer loans are generally charged off no later than when they are 120 days past due on a contractual basis, or earlier in the event of bankruptcy or if there is an amount deemed uncollectible.
	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 affect the borrower’s ability to repay, the estimated value of any underlying collateral, composition of the loan portfolio, current economic conditions and other relevant factors. This evaluation is inherently subjective as it requires material estimates that may be susceptible to significant revision as more information becomes available. In addition, various regulatory agencies, as an integral part of their examination process, periodically review the Corporation’s allowance for loan losses. Such agencies may require the Corporation to recognize adjustments to the allowance based on their judgments of information available to them at the time of their examination. In the process of evaluating the loan portfolio, management also considers the Corporation’s exposure to losses from unfunded loan commitments. As of December 31, 2014 and 2013, management determined that no allowance for credit losses related to unfunded loan commitments was required.
	The allowance consists primarily of two major components – (1) a specific component based on a detailed assessment of certain larger loan relationships, mainly commercial purpose, determined on a loan-by-loan basis; and (2) a general component for the remainder of the portfolio based on a collective evaluation of pools of loans with similar risk characteristics. The general component is assigned to each pool of loans based on both historical net charge-off experience, and an evaluation of certain qualitative factors. An unallocated component is maintained to cover uncertainties that could affect management’s estimate of probable losses. The unallocated component of the allowance reflects the margin of imprecision inherent in the underlying assumptions used in the above methodologies for estimating specific and general losses in the portfolio.
	The specific component relates to loans that are classified as impaired based on a detailed assessment of certain larger loan relationships evaluated by a management committee referred to as the Watch List Committee. Specific loan relationships are identified for evaluation based on the related credit risk rating. For individual loans classified as impaired, an allowance is established when the collateral value less estimated selling costs, present value of discounted cash flows or observable market price of the impaired loan is lower than the carrying value of that loan.
	The general component covers pools of loans by loan class including commercial loans not considered individually impaired, as well as smaller balance homogeneous classes of loans, such as residential real estate, home equity lines of credit and other consumer loans. Accordingly, the Corporation generally does not separately identify individual consumer and residential loans for impairment disclosures, unless such loans are subject to a restructuring agreement. The pools of loans for each loan segment are evaluated for loss exposure based upon average historical net charge-off rates (currently thirty-six months), adjusted for qualitative factors. Qualitative risk factors (described in the following paragraph) are evaluated for the impact on each of the three distinct segments (residential mortgage, commercial and consumer) within the loan portfolio. Each qualitative factor is assigned a value to reflect improving, stable or declining conditions based on management’s judgment using relevant information available at the time of the evaluation. Any adjustments to the factors are supported by a narrative documentation of changes in conditions accompanying the allowance for loan loss calculation.
	The qualitative 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 67% at December 31, 2014) are secured by real estate, and accordingly, the Corporation’s risk for the commercial segment is significantly affected by commercial real estate values. The consumer segment includes a wide mix of loans for different purposes, primarily secured loans, including loans secured by motor vehicles, manufactured housing and other types of collateral.
	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 classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’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.
	For commercial loans secured by real estate, estimated fair values are determined primarily through third-party appraisals. When a real estate secured loan becomes impaired, a decision is made regarding whether an updated certified appraisal of the real estate is necessary. This decision is based on various considerations, including the age of the most recent appraisal, the loan-to-value ratio based on the original appraisal and the condition of the property. Appraised values are discounted to arrive at the estimated selling price of the collateral, which is considered to be the estimated fair value. The discounts also include estimated costs to sell the property.
	For commercial and industrial loans secured by non-real estate collateral, such as accounts receivable, inventory and equipment, estimated fair values are determined based on the borrower’s financial statements, inventory reports, accounts receivable agings or equipment appraisals or invoices. Indications of value from these sources are generally discounted based on the age of the financial information or the quality of the assets.
	Loans whose terms are modified are classified as troubled debt restructurings if the Corporation grants such borrowers concessions and it is deemed that those borrowers are experiencing financial difficulty. Concessions granted under a troubled debt restructuring generally involve an extension of a loan’s stated maturity date or a temporary reduction in interest rate. Non-accrual troubled debt restructurings may be restored to accrual status if principal and interest payments, under the modified terms, are current for six consecutive months after modification. Loans classified as troubled debt restructurings are designated as impaired.
Property, Plant and Equipment, Policy [Policy Text Block]	BANK PREMISES AND EQUIPMENT - Bank premises and equipment are stated at cost less accumulated depreciation. Repair and maintenance expenditures which extend the useful lives of assets are capitalized, and other repair and maintenance expenditures are expensed as incurred. Depreciation expense is computed using the straight-line method.
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]	IMPAIRMENT OF LONG-LIVED ASSETS - The Corporation reviews long-lived assets, such as premises and equipment and intangibles, for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. These changes in circumstances may include a significant decrease in the market value of an asset or the manner in which an asset is used. If there is an indication the carrying value of an asset may not be recoverable, future undiscounted cash flows expected to result from use of the asset are estimated. If the sum of the expected cash flows is less than the carrying value of the asset, a loss is recognized for the difference between the carrying value and fair market value of the asset.
Interest Expense, Policy [Policy Text Block]	INTEREST COSTS - The Corporation capitalizes interest as a component of the cost of premises and equipment constructed or acquired for its own use. The amount of capitalized interest in 2014, 2013, and 2012 was not significant.
Finance, Loan and Lease Receivables, Held for Investments, Foreclosed Assets Policy [Policy Text Block]	FORECLOSED ASSETS HELD FOR SALE - Foreclosed assets held for sale consist of real estate acquired by foreclosure and are initially recorded at fair value, less estimated selling costs.
Goodwill and Intangible Assets, Policy [Policy Text Block]	GOODWILL AND CORE DEPOSIT INTANGIBLE ASSETS- Goodwill represents the excess of the cost of acquisitions over the fair value of the net assets acquired. Goodwill is tested at least annually for impairment, or more often if events or circumstances indicate there may be impairment. Core deposit intangibles are being amortized over periods of time that represent the expected lives using a method of amortization that reflects the pattern of economic benefit. Core deposit intangibles are subject to impairment testing whenever events or changes in circumstances indicate their carrying amounts may not be recoverable.
Transfers and Servicing of Financial Assets, Policy [Policy Text Block]	SERVICING RIGHTS - The estimated fair value of servicing rights related to mortgage loans sold and serviced by the Corporation is recorded as an asset upon the sale of such loans. The valuation of servicing rights is adjusted quarterly, with changes in fair value included in Other Operating Income in the consolidated statements of operations. Significant inputs to the valuation include expected net servicing income to be received, the expected life of the underlying loans and the discount rate. The servicing rights asset is included in Other Assets in the consolidated balance sheet, with a balance equal to fair value of $1,281,000 at December 31, 2014 and $1,123,000 at December 31, 2013.
Income Tax, Policy [Policy Text Block]	INCOME TAXES - Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amount of existing assets and liabilities and their respective tax bases given the provisions of the enacted tax laws. Deferred tax assets are reduced, if necessary, by the amount of such benefits that are not expected to be realized based upon available evidence. Tax benefits from investments in limited partnerships that have qualified for federal low-income tax credits are recognized as a reduction in the provision for income tax over the term of the investment using the effective yield method. The Corporation includes income tax penalties in the provision for income tax. The Corporation has no accrued interest related to unrecognized tax benefits.
Compensation Related Costs, Policy [Policy Text Block]	STOCK COMPENSATION PLANS - The Corporation’s stock-based compensation policy applies to all forms of stock-based compensation including stock options and restricted stock units. All stock-based compensation is accounted for under the fair value method as required by generally accepted accounting principles in the United States. The expense associated with stock-based compensation is recognized over the vesting period of each individual arrangement.
	The fair value of each stock option is estimated on the date of grant using the Black-Scholes-Merton option valuation model. The fair value of restricted stock is based on the current market price on the date of grant.
Off-Balance-Sheet Credit Exposure, Policy [Policy Text Block]	OFF-BALANCE SHEET FINANCIAL INSTRUMENTS - In the ordinary course of business, the Corporation has entered into off-balance sheet financial instruments consisting of commitments to extend credit and standby letters of credit. Such financial instruments are recorded in the financial statements when they become payable.
Cash and Cash Equivalents, Policy [Policy Text Block]	CASH FLOWS - The Corporation utilizes the net reporting of cash receipts and cash payments for certain deposit and lending activities. Cash equivalents include federal funds sold and all cash and amounts due from depository institutions and interest-bearing deposits in other banks with original maturities of three months or less.
Trust Assets and Income [Policy Text Block]	TRUST ASSETS AND INCOME - Assets held by the Corporation in a fiduciary or agency capacity for its customers are not included in the financial statements since such items are not assets of the Corporation. Trust income is recorded on a cash basis, which is not materially different from the accrual basis.

Note_3_Comprehensive_Income_Ta

Note 3 - Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2014
Disclosure Text Block [Abstract]
Comprehensive Income (Loss) [Table Text Block]	(In Thousands)	Before-Tax				Income Tax			Net-of-Tax
		Amount				Effect			Amount
	2014
	Unrealized gains on available-for-sale securities:
	Unrealized holding gains on available-for-sale securities	$	10,774			$	(3,771	)	$	7,003
	Reclassification adjustment for (gains) realized in income		(1,104	)			386			(718	)
	Other comprehensive income on available-for-sale securities		9,670				(3,385	)		6,285
	Unfunded pension and postretirement obligations:
	Changes from plan amendments and actuarial gains and losses included in other comprehensive income		(79	)			28			(51	)
	Amortization of net transition obligation, prior service cost, net actuarial loss and loss on settlement included in net periodic benefit cost		184				(65	)		119
	Other comprehensive income on unfunded retirement obligations		105				(37	)		68
	Total other comprehensive income	$	9,775			$	(3,422	)	$	6,353
	(In Thousands)	Before-Tax				Income Tax			Net-of-Tax
		Amount				Effect			Amount
	2013
	Unrealized losses gains on available-for-sale securities:
	Unrealized holding losses on available-for-sale securities	$	(17,623	)		$	6,168		$	(11,455	)
	Reclassification adjustment for (gains) realized in income		(1,718	)			601			(1,117	)
	Other comprehensive loss on available-for-sale securities		(19,341	)			6,769			(12,572	)
	Unfunded pension and postretirement obligations:
	Changes from plan amendments and actuarial gains and losses included in other comprehensive income		885				(310	)		575
	Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost		2				(1	)		1
	Other comprehensive incomeon unfunded retirement obligations		887				(311	)		576
	Total other comprehensive loss	$	(18,454	)		$	6,458		$	(11,996	)
	(In Thousands)	Before-Tax				Income Tax			Net-of-Tax
		Amount				Effect			Amount
	2012
	Unrealized gains on available-for-sale securities:
	Unrealized holding gains on available-for-sale securities	$	4,128			$	(1,608	)	$	2,520
	Reclassification adjustment for (gains) realized in income		(2,682	)			939			(1,743	)
	Other comprehensive gain on available-for-sale securities		1,446				(669	)		777
	Unfunded pension and postretirement obligations:
	Changes from plan amendments and actuarial gains and losses included in other comprehensive income		8				(2	)		6
	Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost		77				(17	)		60
	Other comprehensive gain on unfunded retirement obligations		85				(19	)		66
	Total other comprehensive income	$	1,531			$	(688	)	$	843
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	(In Thousands)	Unrealized				Unfunded			Accumulated
		Holding Gains				Pension and			Other
		(Losses)				Postretirement			Comprehensive
		on Securities				Obligations			Income (Loss)
	2014
	Balance, beginning of period	$	(1,004	)		$	11		$	(993	)
	Other comprehensive income before reclassifications		7,003				(51	)		6,952
	Amounts reclassified from accumulated other comprehensive income		(718	)			119			(599	)
	Other comprehensive income		6,285				68			6,353
	Balance, end of period	$	5,281			$	79		$	5,360
	2013
	Balance, beginning of period	$	11,568			$	(565	)	$	11,003
	Other comprehensive (loss) income before reclassifications		(11,455	)			575			(10,880	)
	Amounts reclassified from accumulated other comprehensive loss		(1,117	)			1			(1,116	)
	Other comprehensive (loss) income		(12,572	)			576			(11,996	)
	Balance, end of period	$	(1,004	)		$	11		$	(993	)
	2012
	Balance, beginning of period	$	10,791			$	(631	)	$	10,160
	Other comprehensive income before reclassifications		2,520				6			2,526
	Amounts reclassified from accumulated other comprehensive income		(1,743	)			60			(1,683	)
	Other comprehensive income		777				66			843
	Balance, end of period	$	11,568			$	(565	)	$	11,003
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]	For the Year Ended December 31, 2014
	(In Thousands)
	Details about Accumulated Other	Reclassified from			Affected Line Item in the Consolidated
	Comprehensive Income Components	Accumulated Other			Statements of Income
		Comprehensive Income
	Unrealized gains and losses on available-for-sale Securities	$	(1,104	)	Realized gains on available-for-sale securities, net
			386		Income tax provision
			(718	)	Net of tax
	Amortization of defined benefit pension and postretirement items:
	Prior service cost		(31	)	Pensions and other employee benefits
	Actuarial loss		19		Pensions and other employee benefits
	Loss on settlement		196		Pensions and other employee benefits
			184		Total before tax
			(65	)	Income tax provision
			119		Net of tax
	Total reclassifications for the period	$	(599	)
	For the Year Ended December 31, 2013
	(In Thousands)
	Details about Accumulated Other	Reclassified from			Affected Line Item in the Consolidated
	Comprehensive Income Components	Accumulated Other			Statements of Income
		Comprehensive Income
	Unrealized gains and losses on available-for-sale Securities	$	25		Total other-than-temporary impairment losses on
					available-for-sale securities
			(1,743	)	Realized gains on available-for-sale securities, net
			(1,718	)	Total before tax
			601		Income tax provision
			(1,117	)	Net of tax
	Amortization of defined benefit pension and postretirement items:
	Prior service cost		(31	)	Pensions and other employee benefits
	Actuarial loss		33		Pensions and other employee benefits
			2		Total before tax
			(1	)	Income tax provision
			1		Net of tax
	Total reclassifications for the period	$	(1,116	)

Note_4_Per_Share_Data_Tables

Note 4 - Per Share Data (Tables)	12 Months Ended
	Dec. 31, 2014
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]				Weighted-
				Average			Earnings
		Net		Common			Per
		Income		Shares			Share
	2014
	Earnings per share – basic	$	17,086,000		12,390,067		$	1.38
	Dilutive effect of potential common stock arising from stock options:
	Exercise of outstanding stock options				224,015
	Hypothetical share repurchase at $19.41				(202,032	)
	Earnings per share – diluted	$	17,086,000		12,412,050		$	1.38
	2013
	Earnings per share – basic	$	18,594,000		12,352,383		$	1.51
	Dilutive effect of potential common stock arising from stock options:
	Exercise of outstanding stock options				250,236
	Hypothetical share repurchase at $19.86				(219,829	)
	Earnings per share – diluted	$	18,594,000		12,382,790		$	1.5
	2012
	Earnings per share – basic	$	22,705,000		12,235,748		$	1.86
	Dilutive effect of potential common stock arising from stock options:
	Exercise of outstanding stock options				200,589
	Hypothetical share repurchase at $19.16				(176,129	)
	Earnings per share – diluted	$	22,705,000		12,260,208		$	1.85

Note_5_Cash_and_Due_from_Banks1

Note 5 - Cash and Due from Banks (Tables)	12 Months Ended
	Dec. 31, 2014
Cash and Cash Equivalents [Abstract]
Schedule of Cash and Cash Equivalents [Table Text Block]	(In thousands)	Dec. 31,		Dec. 31,
		2014		2013
	Cash and cash equivalents	$	31,619	$	38,591
	Certificates of deposit		4,428		6,028
	Total cash and due from banks	$	36,047	$	44,619

Note_6_Fair_Value_Measurements1

Note 6 - Fair Value Measurements and Fair Values of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2014
Note 6 - Fair Value Measurements and Fair Values of Financial Instruments (Tables) [Line Items]
Fair Value, by Balance Sheet Grouping [Table Text Block]							31-Dec-14
			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			$	26,676			$	0		$	26,676
	Obligations of states and political subdivisions:
	Tax-exempt			0				124,839				0			124,839
	Taxable			0				33,878				0			33,878
	Mortgage-backed securities			0				83,903				0			83,903
	Collateralized mortgage obligations,
	Issued by U.S. Government agencies			0				238,823				0			238,823
	Collateralized debt obligations			0				34				0			34
	Total debt securities			0				508,153				0			508,153
	Marketable equity securities			8,654				0				0			8,654
	Total available-for-sale securities			8,654				508,153				0			516,807
	Servicing rights			0				0				1,281			1,281
	Total recurring fair value measurements		$	8,654			$	508,153			$	1,281		$	518,088
	Nonrecurring fair value measurements
	Impaired loans with a valuation allowance		$	0			$	0			$	3,241		$	3,241
	Valuation allowance			0				0				(769	)		(769	)
	Impaired loans, net			0				0				2,472			2,472
	Foreclosed assets held for sale			0				0				1,189			1,189
	Total nonrecurring fair value measurements		$	0			$	0			$	3,661		$	3,661
							31-Dec-13
			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			$	45,877			$	0		$	45,877
	Obligations of states and political subdivisions:
	Tax-exempt			0				128,426				0			128,426
	Taxable			0				34,471				0			34,471
	Mortgage-backed securities			0				86,208				0			86,208
	Collateralized mortgage obligations,
	Issued by U.S. Government agencies			0				178,092				0			178,092
	Collateralized debt obligations			0				660				0			660
	Total debt securities			0				473,734				0			473,734
	Marketable equity securities			8,924				0				0			8,924
	Total available-for-sale securities			8,924				473,734				0			482,658
	Servicing rights			0				0				1,123			1,123
	Total recurring fair value measurements		$	8,924			$	473,734			$	1,123		$	483,781
	Nonrecurring fair value measurements
	Impaired loans with a valuation allowance		$	0			$	0			$	9,889		$	9,889
	Valuation allowance			0				0				(2,333	)		(2,333	)
	Impaired loans, net			0				0				7,556			7,556
	Foreclosed assets held for sale			0				0				892			892
	Total nonrecurring fair value measurements		$	0			$	0			$	8,448		$	8,448
Fair Value Inputs, Assets, Quantitative Information [Table Text Block]			Fair Value at
			12/31/14			Valuation	Unobservable		Method or Value As of
			(In Thousands)			Technique	Input(s)		12/31/14
	Asset
	Servicing rights		$	1,281		Discounted cash flow	Discount rate			10	%	Rate used through modeling period
							Loan prepayment speeds			156	%	Weighted-average PSA
							Servicing fees			0.25	%	of loan balances
										4	%	of payments are late
										5	%	late fees assessed
									$	1.94		Miscellaneous fees per account per month
							Servicing costs		$	6		Monthly servicing cost per account
									$	24		Additional monthly servicing cost per loan on loans more than 30 days delinquent
										1.5	%	of loans more than 30 days delinquent
										3	%	annual increase in servicing costs
			Fair Value at
			12/31/13			Valuation	Unobservable		Method or Value As of
			(In Thousands)			Technique	Input(s)		12/31/13
	Asset
	Servicing rights		$	1,123		Discounted cash flow	Discount rate			12	%	Rate used through modeling period
							Loan prepayment speeds			152	%	Weighted-average PSA
							Servicing fees			0.25	%	of loan balances
										4	%	of payments are late
										5	%	late fees assessed
									$	1.94		Miscellaneous fees per account per month
							Servicing costs		$	6		Monthly servicing cost per account
									$	24		Additional monthly servicing cost per loan on loans more than 30 days delinquent
										1.5	%	of loans more than 30 days delinquent
										3	%	annual increase in servicing costs
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]	(In Thousands)	Valuation		31-Dec-14								31-Dec-13
		Method(s)		Carrying				Fair				Carrying			Fair
		Used		Amount				Value				Amount			Value
	Financial assets:
	Cash and cash equivalents	Level 1		$	31,619			$	31,619			$	38,591		$	38,591
	Certificates of deposit	Level 2			4,428				4,443				6,028			6,057
	Available-for-sale securities	See Above			516,807				516,807				482,658			482,658
	Restricted equity securities (included in Other Assets)	Level 2			1,584				1,584				3,786			3,786
	Loans held for sale	Level 2			0				0				54			54
	Loans, net	Level 3			623,209				629,267				635,640			634,937
	Accrued interest receivable	Level 2			3,908				3,908				4,146			4,146
	Servicing rights	Level 3			1,281				1,281				1,123			1,123
	Financial liabilities:
	Deposits with no stated maturity	Level 2			729,052				729,052				693,479			693,479
	Time deposits	Level 2			238,937				239,712				261,037			262,376
	Short-term borrowings	Level 2			5,537				5,473				23,385			23,356
	Long-term borrowings	Level 2			73,060				78,866				73,338			79,400
	Accrued interest payable	Level 2			104				104				120			120
Reporting Period 2014 [Member]
Note 6 - Fair Value Measurements and Fair Values of Financial Instruments (Tables) [Line Items]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]			Year Ended
			31-Dec-14
	(In Thousands)		Servicing
			Rights
	Balance, beginning of period		$	1,123
	Issuances of servicing rights			185
	Unrealized losses included in earnings			(27	)
	Balance, end of period		$	1,281
Reporting Period 2013 [Member]
Note 6 - Fair Value Measurements and Fair Values of Financial Instruments (Tables) [Line Items]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]			Year Ended December 31, 2013
			Pooled Trust				Pooled Trust
			Preferred				Preferred
			Securities -				Securities -
	(In Thousands)		Senior				Mezzanine				Servicing
			Tranches				Tranches				Rights			Total
	Balance, beginning of period		$	1,613			$	0			$	605		$	2,218
	Issuances of servicing rights			0				0				451			451
	Accretion and amortization, net			(2	)			0				0			(2	)
	Proceeds from sales and calls			(1,636	)			(571	)			0			(2,207	)
	Realized gains, net			23				571				0			594
	Unrealized gains included in earnings			0				0				67			67
	Unrealized gains included in other comprehensive income			2				0				0			2
	Balance, end of period		$	0			$	0			$	1,123		$	1,123
			Year Ended December 31, 2012
			Pooled Trust				Pooled Trust
			Preferred				Preferred
			Securities -				Securities -
			Senior				Mezzanine				Servicing
			Tranches				Tranches				Rights			Total
	Balance, beginning of period		$	4,638			$	730			$	375		$	5,743
	Issuances of servicing rights			0				0				418			418
	Accretion and amortization, net			(8	)			0				0			(8	)
	Proceeds from sales and calls			(3,429	)			(1,835	)			0			(5,264	)
	Realized gains, net			56				1,835				0			1,891
	Unrealized losses included in earnings			0				0				(188	)		(188	)
	Unrealized gains (losses) included in other comprehensive income			356				(730	)			0			(374	)
	Balance, end of period		$	1,613			$	0			$	605		$	2,218

Note_7_Securities_Tables

Note 7 - Securities (Tables)	12 Months Ended
	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Available-for-sale Securities [Table Text Block]					31-Dec-14
					Gross			Gross
					Unrealized			Unrealized
		Amortized			Holding			Holding			Fair
	(In Thousands)	Cost			Gains			Losses			Value
	Obligations of U.S. Government agencies	$	27,221		$	38		$	(583	)	$	26,676
	Obligations of states and political subdivisions:
	Tax-exempt		120,086			5,134			(381	)		124,839
	Taxable		33,637			415			(174	)		33,878
	Mortgage-backed securities		82,479			1,493			(69	)		83,903
	Collateralized mortgage obligations,
	Issued by U.S. Government agencies		239,620			1,239			(2,036	)		238,823
	Collateralized debt obligations:		34			0			0			34
	Total debt securities		503,077			8,319			(3,243	)		508,153
	Marketable equity securities		5,605			3,058			(9	)		8,654
	Total	$	508,682		$	11,377		$	(3,252	)	$	516,807
					31-Dec-13
					Gross			Gross
					Unrealized			Unrealized
		Amortized			Holding			Holding			Fair
	(In Thousands)	Cost			Gains			Losses			Value
	Obligations of U.S. Government agencies	$	47,382		$	282		$	(1,787	)	$	45,877
	Obligations of states and political subdivisions:
	Tax-exempt		127,748			2,766			(2,088	)		128,426
	Taxable		35,154			206			(889	)		34,471
	Mortgage-backed securities		84,849			1,819			(460	)		86,208
	Collateralized mortgage obligations,
	Issued by U.S. Government agencies		182,372			761			(5,041	)		178,092
	Collateralized debt obligations:		660			0			0			660
	Total debt securities		478,165			5,834			(10,265	)		473,734
	Marketable equity securities		6,038			2,886			0			8,924
	Total	$	484,203		$	8,720		$	(10,265	)	$	482,658
Schedule of Unrealized Loss on Investments [Table Text Block]	31-Dec-14		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	$	0		$	0		$	24,020		$	(583	)	$	24,020	$	(583	)
	Obligations of states and political subdivisions:
	Tax-exempt		11,898			(289	)		6,991			(92	)		18,889		(381	)
	Taxable		4,240			(22	)		9,159			(152	)		13,399		(174	)
	Mortgage-backed securities		0			0			4,160			(69	)		4,160		(69	)
	Collateralized mortgage obligations,
	Issued by U.S. Government agencies		58,812			(396	)		60,897			(1,640	)		119,709		(2,036	)
	Total debt securities		74,950			(707	)		105,227			(2,536	)		180,177		(3,243	)
	Marketable equity securities		134			(9	)		0			0			134		(9	)
	Total temporarily impaired available-for-sale securities	$	75,084		$	(716	)	$	105,227		$	(2,536	)	$	180,311	$	(3,252	)
	31-Dec-13	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	$	22,489		$	(1,337	)	$	4,598		$	(450	)	$	27,087	$	(1,787	)
	Obligations of states and political subdivisions:
	Tax-exempt		44,285			(1,425	)		5,808			(663	)		50,093		(2,088	)
	Taxable		20,873			(766	)		2,378			(123	)		23,251		(889	)
	Mortgage-backed securities		34,377			(460	)		0			0			34,377		(460	)
	Collateralized debt obligations,
	Issued by U.S. Government agencies		113,204			(4,608	)		7,399			(433	)		120,603		(5,041	)
	Total temporarily impaired available-for-sale securities	$	235,228		$	(8,596	)	$	20,183		$	(1,669	)	$	255,411	$	(10,265	)
Realized Gain (Loss) on Investments [Table Text Block]	(In Thousands)
		2014			2013			2012
	Gross realized gains from sales	$	1,328		$	1,918		$	2,798
	Gross realized losses from sales		(224	)		(175	)		(49	)
	Losses from OTTI Impairment		0			(25	)		(67	)
	Net realized gains	$	1,104		$	1,718		$	2,682
	Income tax provision related to net realized gains	$	386		$	601		$	939
Investments Classified by Contractual Maturity Date [Table Text Block]		Amortized			Fair
	(In Thousands)	Cost			Value
	Due in one year or less	$	7,909		$	7,992
	Due from one year through five years		55,499			55,826
	Due from five years through ten years		61,737			62,306
	Due after ten years		55,833			59,303
	Subtotal		180,978			185,427
	Mortgage-backed securities		82,479			83,903
	Collateralized mortgage obligations,
	Issued by U.S. Government agencies		239,620			238,823
	Total	$	503,077		$	508,153
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block]	(In Thousands)
		2014			2013			2012
	Marketable equity securities (bank stocks)	$	0		$	(25	)	$	(67	)

Note_8_Loans_Tables

Note 8 - Loans (Tables)	12 Months Ended
	Dec. 31, 2014
Note 8 - Loans (Tables) [Line Items]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	Summary of Loans by Type
	(In Thousands)	Dec. 31,			Dec. 31,
		2014			2013
	Residential mortgage:
	Residential mortgage loans - first liens	$	291,882		$	299,831
	Residential mortgage loans - junior liens		21,166			23,040
	Home equity lines of credit		36,629			34,530
	1-4 Family residential construction		16,739			13,909
	Total residential mortgage		366,416			371,310
	Commercial:
	Commercial loans secured by real estate		145,878			147,215
	Commercial and industrial		50,157			42,387
	Political subdivisions		17,534			16,291
	Commercial construction and land		6,938			17,003
	Loans secured by farmland		7,916			10,468
	Multi-family (5 or more) residential		8,917			10,985
	Agricultural loans		3,221			3,251
	Other commercial loans		13,334			14,631
	Total commercial		253,895			262,231
	Consumer		10,234			10,762
	Total		630,545			644,303
	Less: allowance for loan losses		(7,336	)		(8,663	)
	Loans, net	$	623,209		$	635,640
Allowance for Credit Losses on Financing Receivables [Table Text Block]	Year Ended December 31, 2014	Dec. 31,											Dec. 31,
	(In Thousands)	2013			Charge-offs			Recoveries		Provision (Credit)			2014
		Balance											Balance
	Allowance for Loan Losses:
	Residential mortgage:
	Residential mortgage loans - first liens	$	2,974		$	(164	)	$	25	$	106		$	2,941
	Residential mortgage loans - junior liens		294			(101	)		0		(17	)		176
	Home equity lines of credit		269			(62	)		0		115			322
	1-4 Family residential construction		168			0			0		46			214
	Total residential mortgage		3,705			(327	)		25		250			3,653
	Commercial:
	Commercial loans secured by real estate		3,123			(1,521	)		250		(94	)		1,758
	Commercial and industrial		591			(24	)		9		112			688
	Political subdivisions		0			0			0		0			0
	Commercial construction and land		267			(170	)		5		181			283
	Loans secured by farmland		115			0			0		50			165
	Multi-family (5 or more) residential		103			0			0		(16	)		87
	Agricultural loans		30			0			0		1			31
	Other commercial loans		138			0			0		(7	)		131
	Total commercial		4,367			(1,715	)		264		227			3,143
	Consumer		193			(97	)		47		2			145
	Unallocated		398			0			0		(3	)		395
	Total Allowance for Loan Losses	$	8,663		$	(2,139	)	$	336	$	476		$	7,336
	Year Ended December 31, 2013
	(In Thousands)	Dec. 31,											Dec. 31,
		2012								Provision			2013
		Balance			Charge-offs			Recoveries		(Credit)			Balance
	Allowance for Loan Losses:
	Residential mortgage:
	Residential mortgage loans - first liens	$	2,619		$	(84	)	$	24	$	415		$	2,974
	Residential mortgage loans - junior liens		247			0			0		47			294
	Home equity lines of credit		255			0			0		14			269
	1-4 Family residential construction		96			(11	)		0		83			168
	Total residential mortgage		3,217			(95	)		24		559			3,705
	Commercial:
	Commercial loans secured by real estate		1,930			(169	)		344		1,018			3,123
	Commercial and industrial		581			(286	)		4		292			591
	Political subdivisions		0			0			0		0			0
	Commercial construction and land		234			(4	)		0		37			267
	Loans secured by farmland		129			0			0		(14	)		115
	Multi-family (5 or more) residential		67			0			0		36			103
	Agricultural loans		27			0			0		3			30
	Other commercial loans		3			0			0		135			138
	Total commercial		2,971			(459	)		348		1,507			4,367
	Consumer		228			(117	)		58		24			193
	Unallocated		441			0			0		(43	)		398
	Total Allowance for Loan Losses	$	6,857		$	(671	)	$	430	$	2,047		$	8,663
	Year Ended December 31, 2012
	(In Thousands)	Dec. 31,											Dec. 31,
		2011								Provision			2012
		Balance			Charge-offs			Recoveries		(Credit)			Balance
	Allowance for Loan Losses:
	Residential mortgage:
	Residential mortgage loans - first liens	$	3,026		$	(543	)	$	18	$	118		$	2,619
	Residential mortgage loans - junior liens		266			(9	)		0		(10	)		247
	Home equity lines of credit		231			0			0		24			255
	1-4 Family residential construction		79			0			0		17			96
	Total residential mortgage		3,602			(552	)		18		149			3,217
	Commercial:
	Commercial loans secured by real estate		2,004			0			1		(75	)		1,930
	Commercial and industrial		946			(57	)		7		(315	)		581
	Political subdivisions		0			0			0		0			0
	Commercial construction and land		267			(441	)		0		408			234
	Loans secured by farmland		126			0			0		3			129
Multi-family (5 or more) residential		66			0			0		1			67
Agricultural loans		27			0			0		0			27
Other commercial loans		5			0			0		(2	)		3
Total commercial		3,441			(498	)		8		20			2,971
Consumer		228			(171	)		59		112			228
Unallocated		434			0			0		7			441
Total Allowance for Loan Losses	$	7,705		$	(1,221	)	$	85	$	288		$	6,857
Financing Receivable Credit Quality Indicators [Table Text Block]	31-Dec-14
	(In Thousands)				Special
		Pass			Mention			Substandard		Doubtful			Total
	Residential Mortgage:
	Residential mortgage loans - first liens	$	280,094		$	1,246		$	10,464	$	78		$	291,882
	Residential mortgage loans - junior liens		20,502			112			552		0			21,166
	Home equity lines of credit		35,935			294			400		0			36,629
	1-4 Family residential construction		16,719			20			0		0			16,739
	Total residential mortgage		353,250			1,672			11,416		78			366,416
	Commercial:
	Commercial loans secured by real estate		133,204			2,775			9,899		0			145,878
	Commercial and Industrial		41,751			7,246			1,042		118			50,157
	Political subdivisions		17,534			0			0		0			17,534
	Commercial construction and land		4,650			266			2,022		0			6,938
	Loans secured by farmland		5,990			433			1,468		25			7,916
	Multi-family (5 or more) residential		8,629			288			0		0			8,917
	Agricultural loans		3,196			0			25		0			3,221
	Other commercial loans		13,248			86			0		0			13,334
	Total commercial		228,202			11,094			14,456		143			253,895
	Consumer		10,095			22			117		0			10,234
	Totals	$	591,547		$	12,788		$	25,989	$	221		$	630,545
	31-Dec-13
	(In Thousands)				Special
		Pass			Mention			Substandard		Doubtful			Total
	Residential Mortgage:
	Residential mortgage loans - first liens	$	286,144		$	1,876		$	11,629	$	182		$	299,831
	Residential mortgage loans - junior liens		21,694			351			995		0			23,040
	Home equity lines of credit		33,821			295			414		0			34,530
	1-4 Family residential construction		13,837			0			72		0			13,909
	Total residential mortgage		355,496			2,522			13,110		182			371,310
	Commercial:
	Commercial loans secured by real estate		129,834			5,866			11,368		147			147,215
	Commercial and Industrial		32,317			6,697			3,138		235			42,387
	Political subdivisions		16,291			0			0		0			16,291
	Commercial construction and land		13,792			427			2,036		748			17,003
	Loans secured by farmland		8,279			758			1,402		29			10,468
	Multi-family (5 or more) residential		10,665			316			4		0			10,985
	Agricultural loans		3,169			34			48		0			3,251
	Other commercial loans		14,532			99			0		0			14,631
	Total commercial		228,879			14,197			17,996		1,159			262,231
	Consumer		10,587			6			169		0			10,762
	Totals	$	594,962		$	16,725		$	31,275	$	1,341		$	644,303
Impaired Financing Receivable by Portfolio Segment [Table Text Block]	31-Dec-14	Loans:								Allowance for Loan Losses:
	(In Thousands)
		Individually			Collectively					Individually			Collectively
		Evaluated			Evaluated			Totals		Evaluated			Evaluated		Totals
	Residential mortgage:
	Residential mortgage loans - first liens	$	1,665		$	290,217		$	291,882	$	358		$	2,583	$	2,941
	Residential mortgage loans - junior liens		17			21,149			21,166		0			176		176
	Home equity lines of credit		0			36,629			36,629		0			322		322
	1-4 Family residential construction		0			16,739			16,739		0			214		214
	Total residential mortgage		1,682			364,734			366,416		358			3,295		3,653
	Commercial:
	Commercial loans secured by real estate		6,537			139,341			145,878		16			1,742		1,758
	Commercial and industrial		663			49,494			50,157		82			606		688
	Political subdivisions		0			17,534			17,534		0			0		0
	Commercial construction and land		1,939			4,999			6,938		211			72		283
	Loans secured by farmland		1,470			6,446			7,916		102			63		165
	Multi-family (5 or more) residential		0			8,917			8,917		0			87		87
	Agricultural loans		25			3,196			3,221		0			31		31
	Other commercial loans		0			13,334			13,334		0			131		131
	Total commercial		10,634			243,261			253,895		411			2,732		3,143
	Consumer		0			10,234			10,234		0			145		145
	Unallocated															395
	Total	$	12,316		$	618,229		$	630,545	$	769		$	6,172	$	7,336
	31-Dec-13	Loans:								Allowance for Loan Losses:
	(In Thousands)
		Individually			Collectively					Individually			Collectively
		Evaluated			Evaluated			Totals		Evaluated			Evaluated		Totals
	Residential mortgage:
	Residential mortgage loans - first liens	$	2,727		$	297,104		$	299,831	$	449		$	2,525	$	2,974
	Residential mortgage loans - junior liens		183			22,857			23,040		100			194		294
	Home equity lines of credit		0			34,530			34,530		0			269		269
	1-4 Family residential construction		0			13,909			13,909		0			168		168
	Total residential mortgage		2,910			368,400			371,310		549			3,156		3,705
	Commercial:
	Commercial loans secured by real estate		7,988			139,227			147,215		1,577			1,546		3,123
	Commercial and industrial		1,276			41,111			42,387		106			485		591
	Political subdivisions		0			16,291			16,291		0			0		0
	Commercial construction and land		2,776			14,227			17,003		72			195		267
	Loans secured by farmland		1,318			9,150			10,468		29			86		115
	Multi-family (5 or more) residential		0			10,985			10,985		0			103		103
	Agricultural loans		48			3,203			3,251		0			30		30
	Other commercial loans		0			14,631			14,631		0			138		138
	Total commercial		13,406			248,825			262,231		1,784			2,583		4,367
	Consumer		5			10,757			10,762		0			193		193
	Unallocated															398
	Total	$	16,321		$	627,982		$	644,303	$	2,333		$	5,932	$	8,663
Impaired Financing Receivables [Table Text Block]	(In Thousands)	2014			2013
	Impaired loans with a valuation allowance	$	3,241		$	9,889
	Impaired loans without a valuation allowance		9,075			6,432
	Total impaired loans	$	12,316		$	16,321
	Valuation allowance related to impaired loans	$	769		$	2,333
Schedule of Additional Information on Impaired Loans [Table Text Block]	(In Thousands)	2014			2013			2012
	Average investment in impaired loans	$	14,359		$	9,690		$	7,209
	Interest income recognized on impaired loans	$	703		$	426		$	278
	Interest income recognized on a cash basis on impaired loans	$	703		$	426		$	278
Schedule of Financing Receivables, Non Accrual Status [Table Text Block]	(In Thousands)	31-Dec-14						31-Dec-13
		Past Due						Past Due
		90+ Days and						90+ Days and
		Accruing			Nonaccrual			Accruing		Nonaccrual
	Residential mortgage:
	Residential mortgage loans - first liens	$	1,989		$	3,440		$	2,016	$	3,533
	Residential mortgage loans - junior liens		82			50			187		110
	Home equity lines of credit		49			22			87		62
	1-4 Family residential construction		0			0			0		72
	Total residential mortgage		2,120			3,512			2,290		3,777
	Commercial:
	Commercial loans secured by real estate		653			5,804			744		7,096
	Commercial and industrial		5			379			17		434
	Commercial construction and land		35			1,915			5		2,663
	Loans secured by farmland		0			951			0		902
	Agricultural loans		0			25			0		35
	Total commercial		693			9,074			766		11,130
	Consumer		30			24			75		27
	Totals	$	2,843		$	12,610		$	3,131	$	14,934
Past Due Financing Receivables [Table Text Block]		As of December 31, 2014											As of December 31, 2013
		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	$	282,766		$	5,443		$	3,673	$	291,882		$	289,483	$	6,776	$	3,572	$	299,831
	Residential mortgage loans - junior liens		20,853			190			123		21,166			22,247		506		287		23,040
	Home equity lines of credit		36,300			258			71		36,629			34,263		118		149		34,530
	1-4 Family residential construction		16,739			0			0		16,739			13,837		0		72		13,909
	Total residential mortgage		356,658			5,891			3,867		366,416			359,830		7,400		4,080		371,310
	Commercial:
	Commercial loans secured by real estate		143,713			883			1,282		145,878			145,055		405		1,755		147,215
	Commercial and industrial		49,994			43			120		50,157			41,730		434		223		42,387
	Political subdivisions		17,534			0			0		17,534			16,291		0		0		16,291
	Commercial construction and land		4,897			91			1,950		6,938			14,303		32		2,668		17,003
	Loans secured by farmland		6,811			254			851		7,916			9,267		329		872		10,468
	Multi-family (5 or more) residential		8,720			197			0		8,917			10,985		0		0		10,985
	Agricultural loans		3,105			91			25		3,221			3,203		13		35		3,251
	Other commercial loans		13,334			0			0		13,334			14,631		0		0		14,631
	Total commercial		248,108			1,559			4,228		253,895			255,465		1,213		5,553		262,231
	Consumer		10,164			40			30		10,234			10,516		171		75		10,762
	Totals	$	614,930		$	7,490		$	8,125	$	630,545		$	625,811	$	8,784	$	9,708	$	644,303
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
	December 31, 2014 Nonaccrual Totals	$	6,959		$	369		$	5,282	$	12,610
	December 31, 2013 Nonaccrual Totals	$	7,878		$	479		$	6,577	$	14,934
Troubled Debt Restructurings on Financing Receivables [Table Text Block]	Troubled Debt Restructurings (TDRs):
		Current &
	(In Thousands)	Past Due			Past Due			Past Due
		Less than			30-89			90+
		30 Days			Days			Days		Nonaccrual			Total
	December 31, 2014 Totals	$	1,725		$	82		$	0	$	5,388		$	7,195
	December 31, 2013 Totals	$	3,254		$	13		$	0	$	908		$	4,175
Schedule of Troubled Debt Restructurings With Subsequent Default [Table Text Block]		Number
		Of			Recorded
		Contracts			Investment
	Year Ended December 31, 2014
	(Balances in Thousands)
	Residential mortgage:
	Residential mortgage loans - first liens		3		$	257
	Residential mortgage loans - junior liens		1			62
	Commercial:
	Commercial loans secured by real estate		1			429
	Commercial construction and land		1			25
	Loans secured by farmland		4			490
	Agricultural loans		1			13
		Number
		Of			Recorded
		Contracts			Investment
	Year Ended December 31, 2013
	(Balances in Thousands)
	Residential mortgage,
	Residential mortgage loans - first liens		1		$	85
	Commercial,
	Commercial loans secured by real estate		2			588
	Commercial construction and land		1			110
	Agricultural loans		1			13
Troubled Debt Restructuring [Member]
Note 8 - Loans (Tables) [Line Items]
Troubled Debt Restructurings on Financing Receivables [Table Text Block]	Year Ended December 31, 2014				Pre-			Post-
	(Balances in Thousands)				Modification			Modification
		Number			Outstanding			Outstanding
		of			Recorded			Recorded
		Contracts			Investment			Investment
	Residential mortgage,
	Residential mortgage loans - first liens		3		$	150		$	150
	Commercial:
	Commercial loans secured by real estate		5			6,679			5,193
	Commercial and industrial		1			80			80
	Year Ended December 31, 2013				Pre-			Post-
	(Balances in Thousands)				Modification			Modification
		Number			Outstanding			Outstanding
		of			Recorded			Recorded
		Contracts			Investment			Investment
	Residential mortgage:
	Residential mortgage loans - first liens		6		$	677		$	677
	Residential mortgage loans - junior liens		3			102			102
	Commercial:
	Commercial loans secured by real estate		2			866			866
	Commercial and industrial		3			701			701
	Loans secured by farmland		4			512			512
	Agricultural loans		1			13			13
	Consumer		1			6			6
	Year Ended December 31, 2012				Pre-			Post-
	(Balances in Thousands)				Modification			Modification
		Number			Outstanding			Outstanding
		of			Recorded			Recorded
		Contracts			Investment			Investment
	Commercial,
	Commercial and industrial		1		$	65		$	65

Note_9_Bank_Premises_and_Equip1

Note 9 - Bank Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment [Table Text Block]	(In Thousands)	December 31,
		2014			2013
	Land	$	2,818		$	2,818
	Buildings and improvements		26,973			26,869
	Furniture and equipment		17,412			17,087
	Construction in progress		98			2
	Total		47,301			46,776
	Less: accumulated depreciation		(31,045	)		(29,346	)
	Net	$	16,256		$	17,430
Schedule of Depreciation Expense [Table Text Block]	(In Thousands)	2014			2013			2012
	Occupancy expense	$	998		$	1,022		$	1,050
	Furniture and equipment expense		942			998			889
	Total	$	1,940		$	2,020		$	1,939

Note_10_Intangible_Assets_Tabl

Note 10 - Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2014
Disclosure Text Block [Abstract]
Schedule of Finite-Lived Intangible Assets [Table Text Block]			December 31,
	(In Thousands)		2014			2013
	Gross amount		$	2,034		$	2,034
	Less: accumulated amortization			(1,982	)		(1,947	)
	Net		$	52		$	87
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]		(In Thousands)
		2015		$	22
		2016			12
		2017			6
		2018			4
		2019			3

Note_11_Deposits_Tables

Note 11 - Deposits (Tables)	12 Months Ended
	Dec. 31, 2014
Disclosure Text Block [Abstract]
Scheduled Maturities of Time Deposits [Table Text Block]	(In Thousands)
		2015		$	128,966
		2016			64,850
		2017			19,854
		2018			12,128
		2019			8,709
		Thereafter			4,430
				$	238,937
Schedule of Remaining Maturities of Time Deposits in Excess of $100,000 [Table Text Block]	(In Thousands)
	Three months or less		$	38,620
	Over 3 months through 12 months			8,910
	Over 1 year through 3 years			11,478
	Over 3 years			8,786
	Total		$	67,794

Note_12_Borrowed_Funds_Tables

Note 12 - Borrowed Funds (Tables)	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Schedule of Short-term Debt [Table Text Block]	(In Thousands)	Dec. 31,		Dec. 31,
		2014		2013
	FHLB-Pittsburgh borrowings	$	0	$	20,000
	Customer repurchase agreements		5,537		3,385
	Total short-term borrowings	$	5,537	$	23,385
Schedule of Long-term Debt Instruments [Table Text Block]	(In Thousands)	Dec. 31,		Dec. 31,
		2014		2013
	FHLB-Pittsburgh borrowings	$	12,060	$	12,338
	Repurchase agreements		61,000		61,000
	Total long-term borrowings	$	73,060	$	73,338
Schedule of Maturities of Long-term Debt [Table Text Block]	(In Thousands)	Dec. 31,		Dec. 31,
		2014		2013
	Loan maturing in 2016 with a rate of 6.86%	$	107	$	153
	Loan maturing in 2017 with a rate of 6.83%		16		22
	Loan maturing in 2017 with a rate of 3.81%		10,000		10,000
	Loan maturing in 2020 with a rate of 4.79%		987		1,146
	Loan maturing in 2025 with a rate of 4.91%		950		1,017
	Total long-term FHLB-Pittsburgh borrowings	$	12,060	$	12,338
	(In Thousands)	Dec. 31,		Dec. 31,
		2014		2013
	Agreement maturing in 2017 with a rate of 3.595%	$	27,000	$	27,000
	Agreement maturing in 2017 with a rate of 4.265%		34,000		34,000
	Total long-term repurchase agreements	$	61,000	$	61,000

Note_13_Employee_and_Postretir1

Note 13 - Employee and Postretirement Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2014
Note 13 - Employee and Postretirement Benefit Plans (Tables) [Line Items]
Schedule of Net Funded Status [Table Text Block]		Pension:						Postretirement:
		2014			2013			2014			2013
	CHANGE IN BENEFIT OBLIGATION:
	Benefit obligation at beginning of year	$	1,733		$	1,783		$	1,391		$	2,081
	Service cost		0			0			34			41
	Interest cost		73			71			57			55
	Plan participants' contributions		0			0			198			208
	Actuarial loss (gain)		76			(104	)		(48	)		(171	)
	Plan amendments		0			0			0			(557	)
	Benefits paid		(16	)		(17	)		(254	)		(266	)
	Settlement of plan obligation		(781	)		0			0			0
	Benefit obligation at end of year	$	1,085		$	1,733		$	1,378		$	1,391
	CHANGE IN PLAN ASSETS:
	Fair value of plan assets at beginning of year	$	1,968		$	1,842		$	0		$	0
	Actual return on plan assets		37			143			0			0
	Employer contribution		0			0			56			58
	Plan participants' contributions		0			0			198			208
	Benefits paid		(16	)		(17	)		(254	)		(266	)
	Settlement of plan obligation		(781	)		0			0			0
	Fair value of plan assets at end of year	$	1,208		$	1,968		$	0		$	0
	Funded (underfunded) status at end of year	$	123		$	235		$	(1,378	)	$	(1,391	)
Schedule of Amounts Recognized in Balance Sheet [Table Text Block]	Assets and liabilities:
	(In Thousands)	Pension:						Postretirement:
		2014			2013			2014			2013
	Other assets	$	123		$	235
	Accrued interest and other liabilities							$	1,378		$	1,391
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]	(In Thousands)	Pension:						Postretirement:
		2014			2013			2014			2013
	Prior service cost	$	0		$	0		$	(402	)	$	(433	)
	Net actuarial loss		269			357			11			59
	Total	$	269		$	357		$	(391	)	$	(374	)
Schedule of Defined Benefit Plans Disclosures [Table Text Block]	(In Thousands)	Pension:									Postretirement:
		2014			2013			2012			2014			2013			2012
	Service cost	$	0		$	0		$	0		$	34		$	41		$	91
	Interest cost		73			71			72			57			55			81
	Expected return on plan assets		(88	)		(90	)		(72	)		0			0			0
	Amortization of transition (asset) obligation		0			0			0			0			0			37
	Amortization of prior service cost		0			0			0			(31	)		(31	)		13
	Recognized net actuarial loss		19			32			27			0			1			0
	Loss on settlement		196			0			0			0			0			0
	Total net periodic benefit cost	$	200		$	13		$	27		$	60		$	66		$	222
Schedule of Expected Benefit Payments [Table Text Block]	(In Thousands)				Pension			Postretirement
	2015				$	235		$	88
	2016					41			87
	2017					16			88
	2018					401			97
	2019					38			98
			2020-2024			208			515
Schedule of Allocation of Plan Assets [Table Text Block]		2014			2013
	Cash and cash equivalents		3	%		36	%
	Debt securities		37	%		24	%
	Equity securities		47	%		30	%
	Alternative funds		13	%		10	%
	Total		100	%		100	%
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]		2014			2013			2012
	Volatility		39	%		41	%		41	%
	Expected option lives (in years)		8			8			7
	Risk-free interest rate		2.85	%		1.6	%		1.53	%
	Dividend yield		4.33	%		3.69	%		3.97	%
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]	(In Thousands)	2014			2013			2012
	Stock options	$	153		$	242		$	247
	Restricted stock		412			454			320
	Total	$	565		$	696		$	567
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]		2014						2013						2012
					Weighted						Weighted						Weighted
					Average						Average						Average
					Exercise						Exercise						Exercise
		Shares			Price			Shares			Price			Shares			Price
	Outstanding, beginning of year		358,176		$	19.03			337,670		$	19.08			301,797		$	19.05
	Granted		39,027		$	20.45			64,050		$	19.21			64,757		$	18.54
	Exercised		(50,415	)	$	17.57			(10,656	)	$	17.22			(17,284	)	$	16.2
	Forfeited		(16,424	)	$	20.03			(14,135	)	$	20.13			(6,830	)	$	21.51
	Expired		(14,207	)	$	26.59			(18,753	)	$	20.73			(4,770	)	$	17
	Outstanding, end of year		316,157		$	19.05			358,176		$	19.03			337,670		$	19.08
	Options exercisable at year-end		316,157		$	19.05			358,176		$	19.03			337,670		$	19.08
	Weighted-average fair value of options granted				$	5.5					$	5.56					$	5.15
	Weighted-average fair value of options forfeited				$	4.89					$	3.77					$	4.03
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]		Stock Options						Restricted Stock
					Weighted						Weighted
					Average						Average
		Number			Grant Date			Number			Grant Date
		of Shares			Fair Value			of Shares			Fair Value
	Outstanding, December 31, 2013		0						67,878		$	18.67
	Granted		39,027		$	5.5			16,711		$	20.4
	Vested		(39,027	)	$	5.5			(24,695	)	$	18.18
	Forfeited		0						(7,458	)	$	19.47
	Outstanding, December 31, 2014		0						52,436		$	19.34
Used to Determine Net Periodic Benefit Cost [Member]
Note 13 - Employee and Postretirement Benefit Plans (Tables) [Line Items]
Schedule of Assumptions Used [Table Text Block]		Pension:									Postretirement:
		2014			2013			2012			2014			2013			2012
	Citizens Trust Company Retirement Plan and postretirement plan:
	Discount rate		4.5	%		4	%		4.5	%		4	%		4	%		4.5	%
	Expected return on plan assets		5.31	%		5.31	%		7.5	%		N/A			N/A			N/A
	Rate of compensation increase		N/A			N/A			N/A			N/A			N/A			N/A
Used to Determine Benefit Obligation [Member]
Note 13 - Employee and Postretirement Benefit Plans (Tables) [Line Items]
Schedule of Assumptions Used [Table Text Block]		Pension:						Postretirement:
		2014			2013			2014			2013
	Discount rate		3.75	%		4.5	%		4	%		4.75	%
	Rate of compensation increase		N/A			N/A			N/A			N/A

Note_14_Income_Taxes_Tables

Note 14 - Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]		December 31,			December 31,
	(In Thousands)	2014			2013
	Deferred tax assets:
	Unrealized holding losses on securities	$	0		$	541
	Net realized losses on securities		144			91
	Allowance for loan losses		2,568			3,032
	Credit for alternative minimum tax paid		537			1,905
	Other deferred tax assets		2,595			2,332
	Total deferred tax assets		5,844			7,901
	Deferred tax liabilities:
	Unrealized holding gains on securities		2,844			0
	Defined benefit plans - ASC 835		43			6
	Bank premises and equipment		1,134			1,314
	Core deposit intangibles		18			30
	Other deferred tax liabilities		137			207
	Total deferred tax liabilities		4,176			1,557
	Deferred tax asset, net	$	1,668		$	6,344
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	(In thousands)	2014			2013			2012
	Currently payable	$	4,280		$	4,125		$	4,545
	Tax expense resulting from allocations of certain tax benefits to equity or as a reduction in other assets		158			219			121
	Deferred		1,254			1,839			3,760
	Total provision	$	5,692		$	6,183		$	8,426
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	(Amounts in thousands)	2014						2013						2012
		Amount			%			Amount			%			Amount			%
	Expected provision	$	7,973			35		$	8,672			35		$	10,896			35
	Tax-exempt interest income		(1,982	)		(8.70	)		(2,137	)		(8.62	)		(2,287	)		(7.35	)
	Nondeductible interest expense		56			0.25			60			0.24			92			0.3
	Dividends received deduction		(79	)		(0.35	)		(76	)		(0.31	)		(78	)		(0.25	)
	Increase in cash surrender value of life insurance		(132	)		(0.58	)		(140	)		(0.57	)		(159	)		(0.51	)
	Employee stock option compensation		41			0.18			67			0.27			62			0.2
	Tax benefit from limited partnership investment		(83	)		(0.36	)		(85	)		(0.34	)		0			0
	Other, net		(101	)		(0.45	)		(178	)		(0.72	)		(100	)		(0.32	)
	Effective income tax provision	$	5,692			24.99		$	6,183			24.95		$	8,426			27.07

Note_15_Related_Party_Transact1

Note 15 - Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2014
Related Party Transactions [Abstract]
Schedule of Related Party Transactions [Table Text Block]	(In Thousands)	Beginning		New					Other		Ending
		Balance		Loans		Repayments			Changes		Balance
	12 directors, 8 executive officers 2014	$	12,547	$	188	$	(1,358	)	$	646	$	12,023
	11 directors, 8 executive officers 2013		14,125		1,110		(2,723	)		35		12,547
	11 directors, 7 executive officers 2012		12,997		2,517		(1,424	)		35		14,125

Note_16_Offbalance_Sheet_Risk_

Note 16 - Off-balance Sheet Risk (Tables)	12 Months Ended
	Dec. 31, 2014
Note 16 - Off-balance Sheet Risk (Tables) [Line Items]
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]	(In Thousands)	2014		2013
	Commitments to extend credit	$	143,863	$	139,866
	Standby letters of credit		13,415		21,590
Standby Letters of Credit [Member]
Note 16 - Off-balance Sheet Risk (Tables) [Line Items]
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]		Amount
	Year of Expiration	(In Thousands)
	2015	$	8,932
	2016		2,183
	2017		60
	2019		30
	2020 and Thereafter		2,210
	Total	$	13,415

Note_18_Regulatory_Matters_Tab

Note 18 - Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2014
Disclosure Text Block [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]										Minimum To Be Well
	(Dollars in Thousands)						Minimum			Capitalized Under
							Capital			Prompt Corrective
		Actual					Requirement			Action Provisions
		Amount		Ratio			Amount		Ratio	Amount		Ratio
	December 31, 2014:
	Total capital to risk-weighted assets:
	Consolidated	$	179,588		27.6	%	$	52,051	>8%		n/a	n/a
	C&N Bank		156,420		24.33	%		51,442	>8%	$	64,303	>10%
	Tier 1 capital to risk-weighted assets:
	Consolidated		170,880		26.26	%		26,026	>4%		n/a	n/a
	C&N Bank		149,055		23.18	%		25,721	>4%		38,582	>6%
	Tier 1 capital to average assets:
	Consolidated		170,880		13.89	%		49,224	>4%		n/a	n/a
	C&N Bank		149,055		12.22	%		48,798	>4%		60,998	>5%
	December 31, 2013:
	Total capital to risk-weighted assets:
	Consolidated	$	177,693		26.6	%	$	53,449	>8%		n/a	n/a
	C&N Bank		162,610		24.65	%		52,783	>8%	$	65,979	>10%
	Tier 1 capital to risk-weighted assets:
	Consolidated		168,039		25.15	%		26,724	>4%		n/a	n/a
	C&N Bank		154,323		23.39	%		26,392	>4%		39,588	>6%
	Tier 1 capital to average assets:
	Consolidated		168,039		13.78	%		48,783	>4%		n/a	n/a
	C&N Bank		154,323		12.77	%		48,348	>4%		60,435	>5%

Note_19_Parent_Company_Only_Ta

Note 19 - Parent Company Only (Tables)	12 Months Ended
	Dec. 31, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Balance Sheet [Table Text Block]	CONDENSED BALANCE SHEET	December 31,
	(In Thousands)	2014			2013
	ASSETS
	Cash	$	9,624		$	2,297
	Investment in subsidiaries:
	Citizens & Northern Bank		164,551			163,711
	Citizens & Northern Investment Corporation		10,822			10,216
	Bucktail Life Insurance Company		3,336			3,254
	Other assets		36			0
	TOTAL ASSETS	$	188,369		$	179,478
	LIABILITIES AND STOCKHOLDERS' EQUITY
	Other liabilities	$	7		$	6
	Stockholders' equity		188,362			179,472
	TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$	188,369		$	179,478
Condensed Income Statement [Table Text Block]	CONDENSED INCOME STATEMENT
	(In Thousands)	2014			2013			2012
	Dividends from Citizens & Northern Bank	$	22,608		$	11,108		$	9,245
	Expenses		(112	)		(108	)		(105	)
	Income before equity in undistributed income of subsidiaries		22,496			11,000			9,140
	Equity in undistributed (loss) income of subsidiaries		(5,410	)		7,594			13,565
	NET INCOME	$	17,086		$	18,594		$	22,705
Condensed Cash Flow Statement [Table Text Block]	CONDENSED STATEMENT OF CASH FLOWS
	(In Thousands)
		2014			2013			2012
	CASH FLOWS FROM OPERATING ACTIVITIES:
	Net income	$	17,086		$	18,594		$	22,705
	Adjustments to reconcile net income to net cash provided by operating activities:
	Equity in undistributed net loss (income) of Subsidiaries		5,410			(7,594	)		(13,565	)
	(Increase) decrease in other assets		(36	)		7			116
	Increase in other liabilities		1			0			6
	Net Cash Provided by Operating Activities		22,461			11,007			9,262
	CASH FLOWS FROM FINANCING ACTIVITIES:
	Proceeds from sale of treasury stock		123			184			229
	Tax benefit from compensation plans, net		137			127			104
	Purchase of treasury stock		(4,002	)		0			0
	Dividends paid		(11,392	)		(10,916	)		(9,061	)
	Net Cash Used in Financing Activities		(15,134	)		(10,605	)		(8,728	)
	INCREASE IN CASH AND CASH EQUIVALENTS		7,327			402			534
	CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR		2,297			1,895			1,361
	CASH AND CASH EQUIVALENTS, END OF YEAR	$	9,624		$	2,297		$	1,895

Note_20_Summary_of_Quarterly_C1

Note 20 - Summary of Quarterly Consolidated Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quarterly Financial Information [Table Text Block]		2014 Quarter Ended
		Mar. 31,			June 30,		Sept. 30,		Dec. 31,
	Interest income	$	11,406		$	11,563	$	11,572	$	11,468
	Interest expense		1,288			1,290		1,287		1,257
	Net interest income		10,118			10,273		10,285		10,211
	(Credit) provision for loan losses		(311	)		446		218		123
	Net interest income after (credit) provision for loan losses		10,429			9,827		10,067		10,088
	Other income		3,751			3,980		3,887		3,802
	Net gains on available-for-sale securities		31			103		760		210
	Loss on prepayment of debt		-			-		-		-
	Other expenses		8,524			8,347		9,036		8,250
	Income before income tax provision		5,687			5,563		5,678		5,850
	Income tax provision		1,399			1,400		1,411		1,482
	Net income available to common shareholders	$	4,288		$	4,163	$	4,267	$	4,368
	Net income per share – basic	$	0.35		$	0.33	$	0.34	$	0.36
	Net income per share – diluted	$	0.34		$	0.33	$	0.34	$	0.35
		2013 Quarter Ended
		Mar. 31,			June 30,		Sept. 30,		Dec. 31,
	Interest income	$	12,647		$	12,355	$	12,027	$	11,885
	Interest expense		1,600			1,415		1,396		1,354
	Net interest income		11,047			10,940		10,631		10,531
	(Credit) provision for loan losses		183			66		239		1,559
	Net interest income after (credit) provision for loan losses		10,864			10,874		10,392		8,972
	Other income		3,843			4,191		4,293		4,124
	Net gains on available-for-sale securities		1,159			100		193		266
	Loss on prepayment of debt		1,023			0		0		0
	Other expenses		8,553			8,520		8,610		7,788
	Income before income tax provision		6,290			6,645		6,268		5,574
	Income tax provision		1,584			1,671		1,579		1,349
	Net income available to common shareholders	$	4,706		$	4,974	$	4,689	$	4,225
	Net income per share – basic	$	0.38		$	0.4	$	0.38	$	0.34
	Net income per share – diluted	$	0.38		$	0.4	$	0.38	$	0.34

Note_1_Nature_of_Operations_an1

Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Commercial Loan [Member]
Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details) [Line Items]
Loans Receivable, Secured by Real Estate, Percentage	67.00%
Other Assets [Member]
Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details) [Line Items]
Servicing Asset	$1,281,000	$1,123,000

Note_3_Comprehensive_Income_De

Note 3 - Comprehensive Income (Details) - Components of Other Comprehensive Income (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Unrealized gains on available-for-sale securities:
Unrealized holding gains on available-for-sale securities, before tax amount	$10,774	($17,623)	$4,128
Unrealized holding gains on available-for-sale securities, income tax effect	-3,771	6,168	-1,608
Unrealized holding gains on available-for-sale securities, net of tax amount	7,003	-11,455	2,520
Reclassification adjustment for (gains) realized in income, before tax amount	-1,104	-1,718	-2,682
Reclassification adjustment for (gains) realized in income, income tax effect	386	601	939
Reclassification adjustment for (gains) realized in income, net of tax amount	-718	-1,117	-1,743
Other comprehensive gain on available-for-sale securities, before tax amount	9,670	-19,341	1,446
Other comprehensive gain on available-for-sale securities, income tax effect	-3,385	6,769	-669
Other comprehensive gain on available-for-sale securities, net of tax amount	6,285	-12,572	777
Unfunded pension and postretirement obligations:
Changes from plan amendments and actuarial gains and losses included in other comprehensive income, before tax amount	-79	885	8
Changes from plan amendments and actuarial gains and losses included in other comprehensive income, income tax effect	28	-310	-2
Changes from plan amendments and actuarial gains and losses included in other comprehensive income, net of tax amount	-51	575	6
Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost, before tax amount	184	2	77
Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost, income tax effect	-65	-1	-17
Amortization of net transition obligation, prior service cost and net actuarial loss included in net periodic benefit cost, net of tax amount	119	1	60
Other comprehensive (loss) gain on unfunded retirement obligations, before tax amount	105	887	85
Other comprehensive gain on unfunded retirement obligations, income tax effect	-37	-311	-19
Other comprehensive gain on unfunded retirement obligations, net of tax amount	68	576	66
Total other comprehensive gain, before tax amount	9,775	-18,454	1,531
Total other comprehensive gain, income tax effect	-3,422	6,458	-688
Net other comprehensive income (loss)	$6,353	($11,996)	$843

Note_3_Comprehensive_Income_De1

Note 3 - Comprehensive Income (Details) - Changes in the Components of Accumulated Other Comprehensive Income (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
2014
Balance, beginning of period	($993)
Other comprehensive (loss) Income	6,353	-11,996	843
Balance, end of period	5,360	-993
Accumulated Net Unrealized Investment Gain (Loss) [Member]
2014
Balance, beginning of period	-1,004	11,568	10,791
Other comprehensive (loss) income before reclassifications	7,003	-11,455	2,520
Amounts reclassified from accumulated other comprehensive (loss) income	-718	-1,117	-1,743
Other comprehensive (loss) Income	6,285	-12,572	777
Balance, end of period	5,281	-1,004	11,568
Accumulated Defined Benefit Plans Adjustment [Member]
2014
Balance, beginning of period	11	-565	-631
Other comprehensive (loss) income before reclassifications	-51	575	6
Amounts reclassified from accumulated other comprehensive (loss) income	119	1	60
Other comprehensive (loss) Income	68	576	66
Balance, end of period	79	11	-565
Accumulated Other Comprehensive Income (Loss) [Member]
2014
Balance, beginning of period	-993	11,003	10,160
Other comprehensive (loss) income before reclassifications	6,952	-10,880	2,526
Amounts reclassified from accumulated other comprehensive (loss) income	-599	-1,116	-1,683
Other comprehensive (loss) Income	6,353	-11,996	843
Balance, end of period	$5,360	($993)	$11,003

Note_3_Comprehensive_Income_De2

Note 3 - Comprehensive Income (Details) - Amounts Reclassified Out of Each Component of OCI (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gains on available-for-sale securities, net									($1,104,000)	($1,743,000)	($2,749,000)
Income tax provision									5,692,000	6,183,000	8,426,000
Net income	4,368,000	4,267,000	4,163,000	4,288,000	4,225,000	4,689,000	4,974,000	4,706,000	17,086,000	18,594,000	22,705,000
Unrealized gains and losses on available-for-sale Securities									0	0	0
Amortization of defined benefit pension and postretirement items:
Total before tax	5,850,000	5,678,000	5,563,000	5,687,000	5,574,000	6,268,000	6,645,000	6,290,000	22,778,000	24,777,000	31,131,000
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gains on available-for-sale securities, net									-1,104,000
Income tax provision									386,000	601,000
Net income									-718,000	-1,117,000
Unrealized gains and losses on available-for-sale Securities										25,000
Amortization of defined benefit pension and postretirement items:
Total before tax										-1,718,000
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax provision									-65,000	-1,000
Net income									119,000	1,000
Amortization of defined benefit pension and postretirement items:
Prior service cost									-31,000	-31,000
Actuarial loss									19,000	33,000
Loss on settlement									196,000
Total before tax									184,000	2,000
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gains on available-for-sale securities, net										-1,743,000
Net income									($599,000)	($1,116,000)

Note_4_Per_Share_Data_Details

Note 4 - Per Share Data (Details) (Equity Option [Member])	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Equity Option [Member]
Note 4 - Per Share Data (Details) [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	151,310	88,521	145,333

Note_4_Per_Share_Data_Details_

Note 4 - Per Share Data (Details) - Net Income Per Share (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
2014
Net income (in Dollars)	$4,368,000	$4,267,000	$4,163,000	$4,288,000	$4,225,000	$4,689,000	$4,974,000	$4,706,000	$17,086,000	$18,594,000	$22,705,000
Weighted average common shares - basic									12,390,067	12,352,383	12,235,748
Earnings per share b basic (in Dollars per share)	$0.36	$0.34	$0.33	$0.35	$0.34	$0.38	$0.40	$0.38	$1.38	$1.51	$1.86
Dilutive effect of potential common stock arising from stock options:
Exercise of outstanding stock options									224,015	250,236	200,589
Hypothetical share repurchase									-202,032	-219,829	-176,129
Weighted average common shares - diluted									12,412,050	12,382,790	12,260,208
Earnings per share b diluted (in Dollars per share)									$1.38	$1.50	$1.85

Note_4_Per_Share_Data_Details_1

Note 4 - Per Share Data (Details) - Net Income Per Share (Parentheticals) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net Income Per Share [Abstract]
Hypothetical share repurchase	$19.41	$19.86	$19.16

Note_5_Cash_and_Due_from_Banks2

Note 5 - Cash and Due from Banks (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Cash and Cash Equivalents [Abstract]
Restricted Cash and Cash Equivalents, Current	$16,853,000	$15,318,000

Note_5_Cash_and_Due_from_Banks3

Note 5 - Cash and Due from Banks (Details) - Cash and Due From Banks (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Cash and Due from Banks [Abstract]
Cash and cash equivalents	$31,619	$38,591
Certificates of deposit	4,428	6,028
Total cash and due from banks	$36,047	$44,619

Note_6_Fair_Value_Measurements2

Note 6 - Fair Value Measurements and Fair Values of Financial Instruments (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Fair Value Disclosures [Abstract]
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	$0	$0	$0

Note_6_Fair_Value_Measurements3

Note 6 - Fair Value Measurements and Fair Values of Financial Instruments (Details) - Assets Measured at Fair Value (USD $)	Dec. 31, 2014	Dec. 31, 2013
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	$516,807,000	$482,658,000
Nonrecurring fair value measurements
Impaired loans with a valuation allowance	3,241,000	9,889,000
Valuation allowance	-769,000	-2,333,000
Foreclosed assets held for sale	1,189,000	892,000
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	0	0
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	26,676,000	45,877,000
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	0	0
US Government Agencies Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	26,676,000	45,877,000
US Government Agencies Debt Securities [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	26,676,000	45,877,000
Obligations of States and Political Subdivisions, Tax-exempt [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	0	0
Obligations of States and Political Subdivisions, Tax-exempt [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	124,839,000	128,426,000
Obligations of States and Political Subdivisions, Tax-exempt [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	0	0
Obligations of States and Political Subdivisions, Tax-exempt [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	124,839,000	128,426,000
Obligations of States and Political Subdivisions, Tax-exempt [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	124,839,000	128,426,000
Obligations of States and Political Subdivisions, Taxable [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	0	0
Obligations of States and Political Subdivisions, Taxable [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	33,878,000	34,471,000
Obligations of States and Political Subdivisions, Taxable [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	0	0
Obligations of States and Political Subdivisions, Taxable [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	33,878,000	34,471,000
Obligations of States and Political Subdivisions, Taxable [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	33,878,000	34,471,000
Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	0	0
Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	83,903,000	86,208,000
Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	0	0
Collateralized Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	83,903,000	86,208,000
Collateralized Mortgage Backed Securities [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	83,903,000	86,208,000
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	0	0
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	238,823,000	178,092,000
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	0	0
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	238,823,000	178,092,000
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	238,823,000	178,092,000
Collateralized Debt Obligations [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	0	0
Collateralized Debt Obligations [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	34,000	660,000
Collateralized Debt Obligations [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	0	0
Collateralized Debt Obligations [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	34,000	660,000
Collateralized Debt Obligations [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	34,000	660,000
Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	0	0
Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	508,153,000	473,734,000
Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	0	0
Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	508,153,000	473,734,000
Debt Securities [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	508,153,000	473,734,000
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	8,654,000	8,924,000
Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	0	0
Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	0	0
Equity Securities [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	8,654,000	8,924,000
Equity Securities [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	8,654,000	8,924,000
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	8,654,000	8,924,000
Servicing rights	0	0
Total recurring fair value measurements	8,654,000	8,924,000
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Nonrecurring fair value measurements
Impaired loans with a valuation allowance	0	0
Valuation allowance	0	0
Impaired loans, net	0	0
Foreclosed assets held for sale	0	0
Total nonrecurring fair value measurements	0	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	508,153,000	473,734,000
Servicing rights	0	0
Total recurring fair value measurements	508,153,000	473,734,000
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Nonrecurring fair value measurements
Impaired loans with a valuation allowance	0	0
Valuation allowance	0	0
Impaired loans, net	0	0
Foreclosed assets held for sale	0	0
Total nonrecurring fair value measurements	0	0
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	516,807,000	482,658,000
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	0	0
Servicing rights	1,281,000	1,123,000
Total recurring fair value measurements	1,281,000	1,123,000
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Nonrecurring fair value measurements
Impaired loans with a valuation allowance	3,241,000	9,889,000
Valuation allowance	-769,000	-2,333,000
Impaired loans, net	2,472,000	7,556,000
Foreclosed assets held for sale	1,189,000	892,000
Total nonrecurring fair value measurements	3,661,000	8,448,000
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
AVAILABLE-FOR-SALE SECURITIES:
Available-for-sale securities	516,807,000	482,658,000
Servicing rights	1,281,000	1,123,000
Total recurring fair value measurements	518,088,000	483,781,000
Fair Value, Measurements, Nonrecurring [Member] | Estimate of Fair Value Measurement [Member]
Nonrecurring fair value measurements
Impaired loans with a valuation allowance	3,241,000	9,889,000
Valuation allowance	-769,000	-2,333,000
Impaired loans, net	2,472,000	7,556,000
Foreclosed assets held for sale	1,189,000	892,000
Total nonrecurring fair value measurements	$3,661,000	$8,448,000

Note_6_Fair_Value_Measurements4

Note 6 - Fair Value Measurements and Fair Values of Financial Instruments (Details) - Valuation Techniques and the Unobservable Inputs Used in Determining Fair Value (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Servicing Rights Asset [Member]
Asset
Fair value of asset (in Dollars)	$1,281,000	$1,123,000
Discount rate	10.00%	12.00%
Loan prepayment speeds	156.00%	152.00%
Servicing fees of loan balances	0.25%	0.25%
Servicing fees of payments are late	4.00%
Servicing late fees assessed	5.00%	5.00%
Miscellaneous servicing fees per account per month (in Dollars)	1.94	1.94
Monthly servicing cost per account (in Dollars)	6	6
Additional monthly servicing cost per loan on loans more than 30 days delinquent (in Dollars)	$24	$24
Servicing costs of loans more than 30 days delinquent	1.50%	1.50%
Annual increase in servicing costs	3.00%	3.00%
Pooled Trust Preferred Securities Senior Tranches [Member]
Asset
Servicing fees of payments are late		4.00%

Note_6_Fair_Value_Measurements5

Note 6 - Fair Value Measurements and Fair Values of Financial Instruments (Details) - Reconciliation of Activity for Level 3 Assets Measured at Fair Value on a Recurring Basis (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Inputs, Level 3 [Member] | Servicing Rights Asset [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance, beginning of period	$1,123	$605	$375
Issuances of servicing rights	185	451	418
Unrealized losses included in earnings	-27	67	-188
Balance, end of period	1,281	1,123	605
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance, beginning of period		2,218	5,743
Issuances of servicing rights		451	418
Unrealized losses included in earnings		67	-188
Balance, end of period		1,123	2,218
Servicing Rights Asset [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance, end of period	$1,281	$1,123

Note_6_Fair_Value_Measurements6

Note 6 - Fair Value Measurements and Fair Values of Financial Instruments (Details) - Reconciliation of Activity for Level 3 Assets Measured at Fair Value on a Recurring Basis (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Accretion and amortization, net									($1,375,000)	($1,836,000)	($1,581,000)
Realized gains, net	210,000	760,000	103,000	31,000	266,000	193,000	100,000	1,159,000	1,104,000	1,718,000	2,682,000
Fair Value, Inputs, Level 3 [Member] | Pooled Trust Preferred Securities Senior Tranches [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance, beginning of period								1,613,000		1,613,000	4,638,000
Issuances of servicing rights										0	0
Accretion and amortization, net										-2,000	-8,000
Proceeds from sales and calls										-1,636,000	-3,429,000
Realized gains, net										23,000	56,000
Unrealized losses included in earnings										0	0
Unrealized gains (losses) included in other comprehensive income										2,000	356,000
Balance, end of period					0					0	1,613,000
Fair Value, Inputs, Level 3 [Member] | Pooled Trust Preferred Securities Mezzanine Tranches [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance, beginning of period								0		0	730,000
Issuances of servicing rights										0	0
Accretion and amortization, net										0	0
Proceeds from sales and calls										-571,000	-1,835,000
Realized gains, net										571,000	1,835,000
Unrealized losses included in earnings										0	0
Unrealized gains (losses) included in other comprehensive income										0	-730,000
Balance, end of period					0					0	0
Fair Value, Inputs, Level 3 [Member] | Servicing Rights Asset [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance, beginning of period				1,123,000				605,000	1,123,000	605,000	375,000
Issuances of servicing rights									185,000	451,000	418,000
Accretion and amortization, net										0	0
Proceeds from sales and calls										0	0
Realized gains, net										0	0
Unrealized losses included in earnings									-27,000	67,000	-188,000
Unrealized gains (losses) included in other comprehensive income										0	0
Balance, end of period	1,281,000				1,123,000				1,281,000	1,123,000	605,000
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance, beginning of period								2,218,000		2,218,000	5,743,000
Issuances of servicing rights										451,000	418,000
Accretion and amortization, net										-2,000	-8,000
Proceeds from sales and calls										-2,207,000	-5,264,000
Realized gains, net										594,000	1,891,000
Unrealized losses included in earnings										67,000	-188,000
Unrealized gains (losses) included in other comprehensive income										2,000	-374,000
Balance, end of period					1,123,000					1,123,000	2,218,000
Servicing Rights Asset [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance, end of period	$1,281,000				$1,123,000				$1,281,000	$1,123,000

Note_6_Fair_Value_Measurements7

Note 6 - Fair Value Measurements and Fair Values of Financial Instruments (Details) - Estimated Fair Values, and Related Carrying Amounts, of the Financial Instruments (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Financial assets:
Cash and cash equivalents	$31,619,000	$38,591,000	$55,016,000	$56,815,000
Certificates of deposit	4,428,000	6,028,000
Available-for-sale securities	516,807,000	482,658,000
Loans, net	623,209,000	635,640,000
Accrued interest receivable	3,908,000	4,146,000
Financial liabilities:
Time deposits	238,937,000
Short-term borrowings	5,537,000	23,385,000
Long-term borrowings	73,060,000	73,338,000
Fair Value, Inputs, Level 1 [Member] | Reported Value Measurement [Member]
Financial assets:
Cash and cash equivalents	31,619,000	38,591,000
Loans held for sale	0	54,000
Accrued interest receivable	3,908,000	4,146,000
Financial liabilities:
Deposits with no stated maturity	729,052,000	693,479,000
Accrued interest payable	104,000	120,000
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value Measurement [Member]
Financial assets:
Cash and cash equivalents	31,619,000	38,591,000
Loans held for sale	0	54,000
Accrued interest receivable	3,908,000	4,146,000
Financial liabilities:
Deposits with no stated maturity	729,052,000	693,479,000
Accrued interest payable	104,000	120,000
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member]
Financial assets:
Certificates of deposit	4,428,000	6,028,000
Available-for-sale securities	516,807,000	482,658,000
Restricted equity securities (included in Other Assets)	1,584,000	3,786,000
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member]
Financial assets:
Certificates of deposit	4,443,000	6,057,000
Available-for-sale securities	516,807,000	482,658,000
Restricted equity securities (included in Other Assets)	1,584,000	3,786,000
Fair Value, Inputs, Level 3 [Member] | Reported Value Measurement [Member]
Financial assets:
Loans, net	623,209,000	635,640,000
Servicing rights	1,281,000	1,123,000
Financial liabilities:
Time deposits	238,937,000	261,037,000
Short-term borrowings	5,537,000	23,385,000
Long-term borrowings	73,060,000	73,338,000
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Financial assets:
Loans, net	629,267,000	634,937,000
Servicing rights	1,281,000	1,123,000
Financial liabilities:
Time deposits	239,712,000	262,376,000
Short-term borrowings	5,473,000	23,356,000
Long-term borrowings	$78,866,000	$79,400,000

Note_7_Securities_Details

Note 7 - Securities (Details) (USD $)	3 Months Ended								12 Months Ended			3 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2012
Note 7 - Securities (Details) [Line Items]
Available-for-sale Securities Pledged as Collateral	$369,945,000				$323,613,000				$369,945,000	$323,613,000
Municipal Debt Securities, at Carrying Value	15,854,000								15,854,000
Available-for-sale Securities, Gross Realized Gains									1,328,000	1,918,000	2,798,000
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities									0	25,000	67,000
Available-for-sale Securities, Gross Realized Gain (Loss)	210,000	760,000	103,000	31,000	266,000	193,000	100,000	1,159,000	1,104,000	1,718,000	2,682,000
US States and Political Subdivisions Debt Securities [Member]
Note 7 - Securities (Details) [Line Items]
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	1,000								1,000
Pooled Trust Preferred Securities Mezzanine Tranches [Member]
Note 7 - Securities (Details) [Line Items]
Gain (Loss) on Sale of Securities, Net												1,754,000
Marketable Equity Securities [Member]
Note 7 - Securities (Details) [Line Items]
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities										25,000	67,000
Equity Securities [Member]
Note 7 - Securities (Details) [Line Items]
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax	9,000								9,000
Bank Stocks [Member]
Note 7 - Securities (Details) [Line Items]
Available-for-sale Securities, Gross Realized Gain (Loss)									363,000	1,018,000	538,000
Federal Home Loan Bank of Pittsburgh [Member] | Other Assets [Member]
Note 7 - Securities (Details) [Line Items]
Federal Home Loan Bank Stock	1,454,000				3,656,000				1,454,000	3,656,000
Federal Home Loan Bank of Pittsburgh [Member]
Note 7 - Securities (Details) [Line Items]
Federal Home Loan Bank Stock	1,454,000				3,656,000				1,454,000	3,656,000
Trust Preferred Securities Subject to Mandatory Redemption [Member] | MMCAPS Funding I Ltd[Member]
Note 7 - Securities (Details) [Line Items]
Proceeds from (Repurchase of) Trust Preferred Securities							1,636,000
Available-for-sale Securities, Gross Realized Gains							23,000
Trust Preferred Securities Subject to Mandatory Redemption [Member] | Astoria Capital Trust [Member]
Note 7 - Securities (Details) [Line Items]
Proceeds from (Repurchase of) Trust Preferred Securities							5,171,000
Available-for-sale Securities, Gross Realized Gains							13,000
ALESCO Preferred Funding IX Ltd [Member]
Note 7 - Securities (Details) [Line Items]
Gain (Loss) on Sale of Securities, Net								$571,000

Note_7_Securities_Details_Avai

Note 7 - Securities (Details) - Available-for-sale Securities (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	$508,682	$484,203
Available-for-sale securities, gross unrealized holding gains	11,377	8,720
Available-for-sale securities, gross unrealized holding losses	-3,252	-10,265
Available-for-sale securities, fair value	516,807	482,658
US Government Agencies Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	27,221	47,382
Available-for-sale securities, gross unrealized holding gains	38	282
Available-for-sale securities, gross unrealized holding losses	-583	-1,787
Available-for-sale securities, fair value	26,676	45,877
Obligations of States and Political Subdivisions, Tax-exempt [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	120,086	127,748
Available-for-sale securities, gross unrealized holding gains	5,134	2,766
Available-for-sale securities, gross unrealized holding losses	-381	-2,088
Available-for-sale securities, fair value	124,839	128,426
Obligations of States and Political Subdivisions, Taxable [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	33,637	35,154
Available-for-sale securities, gross unrealized holding gains	415	206
Available-for-sale securities, gross unrealized holding losses	-174	-889
Available-for-sale securities, fair value	33,878	34,471
Collateralized Mortgage Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	82,479	84,849
Available-for-sale securities, gross unrealized holding gains	1,493	1,819
Available-for-sale securities, gross unrealized holding losses	-69	-460
Available-for-sale securities, fair value	83,903	86,208
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	239,620	182,372
Available-for-sale securities, gross unrealized holding gains	1,239	761
Available-for-sale securities, gross unrealized holding losses	-2,036	-5,041
Available-for-sale securities, fair value	238,823	178,092
Collateralized Debt Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	34	660
Available-for-sale securities, gross unrealized holding gains	0	0
Available-for-sale securities, gross unrealized holding losses	0	0
Available-for-sale securities, fair value	34	660
Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	503,077	478,165
Available-for-sale securities, gross unrealized holding gains	8,319	5,834
Available-for-sale securities, gross unrealized holding losses	-3,243	-10,265
Available-for-sale securities, fair value	508,153	473,734
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	5,605	6,038
Available-for-sale securities, gross unrealized holding gains	3,058	2,886
Available-for-sale securities, gross unrealized holding losses	-9	0
Available-for-sale securities, fair value	$8,654	$8,924

Note_7_Securities_Details_Avai1

Note 7 - Securities (Details) - Available-for-sale Securities With Unrealized Loss Positions (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Note 7 - Securities (Details) - Available-for-sale Securities With Unrealized Loss Positions [Line Items]
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	$75,084	$235,228
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	-716	-8,596
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	105,227	20,183
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	-2,536	-1,669
Available-for-sale securities with unrealized loss positions, fair value	180,311	255,411
Available-for-sale securities with unrealized loss positions, unrealized losses	-3,252	-10,265
US Government Agencies Debt Securities [Member]
Note 7 - Securities (Details) - Available-for-sale Securities With Unrealized Loss Positions [Line Items]
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	0	22,489
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	0	-1,337
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	24,020	4,598
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	-583	-450
Available-for-sale securities with unrealized loss positions, fair value	24,020	27,087
Available-for-sale securities with unrealized loss positions, unrealized losses	-583	-1,787
Obligations of States and Political Subdivisions, Tax-exempt [Member]
Note 7 - Securities (Details) - Available-for-sale Securities With Unrealized Loss Positions [Line Items]
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	11,898	44,285
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	-289	-1,425
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	6,991	5,808
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	-92	-663
Available-for-sale securities with unrealized loss positions, fair value	18,889	50,093
Available-for-sale securities with unrealized loss positions, unrealized losses	-381	-2,088
Obligations of States and Political Subdivisions, Taxable [Member]
Note 7 - Securities (Details) - Available-for-sale Securities With Unrealized Loss Positions [Line Items]
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	4,240	20,873
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	-22	-766
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	9,159	2,378
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	-152	-123
Available-for-sale securities with unrealized loss positions, fair value	13,399	23,251
Available-for-sale securities with unrealized loss positions, unrealized losses	-174	-889
Collateralized Mortgage Backed Securities [Member]
Note 7 - Securities (Details) - Available-for-sale Securities With Unrealized Loss Positions [Line Items]
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	0	34,377
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	0	-460
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	4,160	0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	-69	0
Available-for-sale securities with unrealized loss positions, fair value	4,160	34,377
Available-for-sale securities with unrealized loss positions, unrealized losses	-69	-460
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Note 7 - Securities (Details) - Available-for-sale Securities With Unrealized Loss Positions [Line Items]
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	58,812
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	-396
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	60,897
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	-1,640
Available-for-sale securities with unrealized loss positions, fair value	119,709
Available-for-sale securities with unrealized loss positions, unrealized losses	-2,036
Debt Securities [Member]
Note 7 - Securities (Details) - Available-for-sale Securities With Unrealized Loss Positions [Line Items]
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	74,950
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	-707
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	105,227
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	-2,536
Available-for-sale securities with unrealized loss positions, fair value	180,177
Available-for-sale securities with unrealized loss positions, unrealized losses	-3,243
Equity Securities [Member]
Note 7 - Securities (Details) - Available-for-sale Securities With Unrealized Loss Positions [Line Items]
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	134
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	-9
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	0
Available-for-sale securities with unrealized loss positions, fair value	134
Available-for-sale securities with unrealized loss positions, unrealized losses	-9
Collateralized Debt Obligations Pooled Trust Preferred Securities Senior Tranches [Member]
Note 7 - Securities (Details) - Available-for-sale Securities With Unrealized Loss Positions [Line Items]
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value		113,204
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses		-4,608
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value		7,399
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses		-433
Available-for-sale securities with unrealized loss positions, fair value		120,603
Available-for-sale securities with unrealized loss positions, unrealized losses		($5,041)

Note_7_Securities_Details_Gros

Note 7 - Securities (Details) - Gross Realized Gains and Losses from Available-for-sale Securities (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Gross Realized Gains and Losses from Available-for-sale Securities [Abstract]
Gross realized gains from sales									$1,328	$1,918	$2,798
Gross realized losses from sales									-224	-175	-49
Losses from OTTI Impairment									0	-25	-67
Net realized gains	210	760	103	31	266	193	100	1,159	1,104	1,718	2,682
Income tax provision related to net realized gains									$386	$601	$939

Note_7_Securities_Details_Avai2

Note 7 - Securities (Details) - Available-for-sale Debt Securities by Contractual Maturity (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified
Note 7 - Securities (Details) - Available-for-sale Debt Securities by Contractual Maturity [Line Items]
Due in one year or less	$7,909
Due in one year or less	7,992
Due from one year through five years	55,499
Due from one year through five years	55,826
Due from five years through ten years	61,737
Due from five years through ten years	62,306
Due after ten years	55,833
Due after ten years	59,303
Subtotal	180,978
Subtotal	185,427
Total	503,077
Total	508,153
Collateralized Mortgage Obligations [Member]
Note 7 - Securities (Details) - Available-for-sale Debt Securities by Contractual Maturity [Line Items]
Available-for-sale debt securities, amortized cost	82,479
Available-for-sale debt securities, fair value	83,903
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Note 7 - Securities (Details) - Available-for-sale Debt Securities by Contractual Maturity [Line Items]
Available-for-sale debt securities, amortized cost	239,620
Available-for-sale debt securities, fair value	$238,823

Note_7_Securities_Details_Net_

Note 7 - Securities (Details) - Net Impairment Losses Recognized in Earnings (Marketable Equity Securities [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Marketable Equity Securities [Member]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Marketable equity securities (bank stocks)	$0	($25)	($67)

Note_8_Loans_Details

Note 8 - Loans (Details) (USD $)	12 Months Ended			3 Months Ended
	Dec. 31, 2012	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2014	Dec. 31, 2011
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Allowance for Credit Losses (in Dollars)	$6,857,000	7,336,000	8,663,000		$7,705,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0
Reduction in Payment Amount [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Number of Contracts		1	1
Interest Only Payments [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Number of Contracts		1	14
Interest Rate Deduction [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Number of Contracts		1	2
Maturity Date Extension [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Number of Contracts			3
Troubled Debt Restructuring [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Allowance for Credit Losses (in Dollars)	0
Payments of Interest Only Missed [Member] | Agricultural Loans [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		1
Payments of Interest Only Missed [Member] | Residential Mortgage [Member] | First Mortgage [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		1
Payments of Interest Only Missed [Member] | Residential Mortgage [Member] | Second Mortgage [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		1
Payments of Interest Only Missed [Member] | Residential Mortgage [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		1
Payments of Interest Only Missed [Member] | Loans Secured by Farmland [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		1
Payments of Interest Only Missed [Member] | Commercial Loans Secured by Real Estate [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		1
Payments of Interest Only Missed [Member] | Commercial Loans Secured by Real Estate [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			2
Monthly Payments Missed [Member] | Residential Mortgage [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		1
Subsequent Default [Member]
Note 8 - Loans (Details) [Line Items]
Allowance for Credit Losses, Change in Method of Calculating Impairment (in Dollars)		0	0
Agricultural Loans [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Number of Contracts			1
Financing Receivable, Allowance for Credit Losses (in Dollars)	27,000	31,000	30,000		27,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		1	1
Residential Mortgage [Member] | First Mortgage [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Number of Contracts		3	6
Financing Receivable, Allowance for Credit Losses (in Dollars)	2,619,000	2,941,000	2,974,000		3,026,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		3	1
Residential Mortgage [Member] | Second Mortgage [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Number of Contracts			3
Financing Receivable, Allowance for Credit Losses (in Dollars)	247,000	176,000	294,000		266,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		1
Residential Mortgage [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Allowance for Credit Losses (in Dollars)	3,217,000	3,653,000	3,705,000		3,602,000
Loans Secured by Farmland [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Number of Contracts			4
Financing Receivable, Allowance for Credit Losses (in Dollars)	129,000	165,000	115,000		126,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		4
Financing Receivable, Modifications, Recorded Investment (in Dollars)		75,000
Commercial Loans Secured by Real Estate [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Number of Contracts		5	2
Financing Receivable, Allowance for Credit Losses (in Dollars)	1,930,000	1,758,000	3,123,000		2,004,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		1	2
Commercial Loans Secured by Real Estate [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Modifications, Number of Contracts		6
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down (in Dollars)				1,486,000
Financing Receivable, Allowance for Credit Losses (in Dollars)		0	1,552,000
Loans Receivable [Member] | Credit Availability Concentration Risk [Member]
Note 8 - Loans (Details) [Line Items]
Concentration Risk, Percentage		0.00%
Minimum [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Individually Evaluated for Impairment, Threshold With Extension of Credit (in Dollars)		200,000
Financing Receivable, Individually Evaluated for Impairment, Estimated Loss Trigger (in Dollars)		100,000
Maximum [Member]
Note 8 - Loans (Details) [Line Items]
Financing Receivable, Individually Evaluated for Impairment, Threshold With Estimated Loss (in Dollars)		200,000

Note_8_Loans_Details_Loans_Rec

Note 8 - Loans (Details) - Loans Receivable (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Residential mortgage:
Loans receivable	$630,545	$644,303
Less: allowance for loan losses	-7,336
Loans, net	623,209	635,640
Residential Mortgage [Member] | First Mortgage [Member]
Residential mortgage:
Loans receivable	291,882	299,831
Residential Mortgage [Member] | Second Mortgage [Member]
Residential mortgage:
Loans receivable	21,166	23,040
Residential Mortgage [Member] | Construction Loans [Member]
Residential mortgage:
Loans receivable	16,739	13,909
Residential Mortgage [Member]
Residential mortgage:
Loans receivable	366,416	371,310
Home Equity Line of Credit [Member]
Residential mortgage:
Loans receivable	36,629	34,530
Commercial Loans Secured by Real Estate [Member]
Residential mortgage:
Loans receivable	145,878	147,215
Commercial and Industrial [Member]
Residential mortgage:
Loans receivable	50,157	42,387
Political Subdivisions [Member]
Residential mortgage:
Loans receivable	17,534	16,291
Commercial Construction and Land [Member]
Residential mortgage:
Loans receivable	6,938	17,003
Loans Secured by Farmland [Member]
Residential mortgage:
Loans receivable	7,916	10,468
Multi-family (5 or more) Residential [Member]
Residential mortgage:
Loans receivable	8,917
Agricultural Loans [Member]
Residential mortgage:
Loans receivable	3,221	3,251
Other Commercial Loans [Member]
Residential mortgage:
Loans receivable	13,334	14,631
Commercial Loan [Member]
Residential mortgage:
Loans receivable	253,895	262,231
Consumer Loan [Member]
Residential mortgage:
Loans receivable	$10,234	$10,762

Note_8_Loans_Details_Allowance

Note 8 - Loans (Details) - Allowance for Loan Losses (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Residential mortgage:
Allowance for loan losses				$8,663,000				$6,857,000	$8,663,000	$6,857,000	$7,705,000
Allowance for loan losses, charge-offs									-2,139,000	-671,000	-1,221,000
Allowance for loan losses, recoveries									336,000	430,000	85,000
Allowance for loan losses, provision (credit)	123,000	218,000	446,000	-311,000	1,559,000	239,000	66,000	183,000	476,000	2,047,000	288,000
Allowance for loan losses	7,336,000				8,663,000				7,336,000	8,663,000	6,857,000
Residential Mortgage [Member] | First Mortgage [Member]
Residential mortgage:
Allowance for loan losses				2,974,000				2,619,000	2,974,000	2,619,000	3,026,000
Allowance for loan losses, charge-offs									-164,000	-84,000	-543,000
Allowance for loan losses, recoveries									25,000	24,000	18,000
Allowance for loan losses, provision (credit)									106,000	415,000	118,000
Allowance for loan losses	2,941,000				2,974,000				2,941,000	2,974,000	2,619,000
Residential Mortgage [Member] | Second Mortgage [Member]
Residential mortgage:
Allowance for loan losses				294,000				247,000	294,000	247,000	266,000
Allowance for loan losses, charge-offs									-101,000	0	-9,000
Allowance for loan losses, recoveries									0	0	0
Allowance for loan losses, provision (credit)									-17,000	47,000	-10,000
Allowance for loan losses	176,000				294,000				176,000	294,000	247,000
Residential Mortgage [Member] | Construction Loans [Member]
Residential mortgage:
Allowance for loan losses				168,000				96,000	168,000	96,000	79,000
Allowance for loan losses, charge-offs									0	-11,000	0
Allowance for loan losses, recoveries									0	0	0
Allowance for loan losses, provision (credit)									46,000	83,000	17,000
Allowance for loan losses	214,000				168,000				214,000	168,000	96,000
Residential Mortgage [Member]
Residential mortgage:
Allowance for loan losses				3,705,000				3,217,000	3,705,000	3,217,000	3,602,000
Allowance for loan losses, charge-offs									-327,000	-95,000	-552,000
Allowance for loan losses, recoveries									25,000	24,000	18,000
Allowance for loan losses, provision (credit)									250,000	559,000	149,000
Allowance for loan losses	3,653,000				3,705,000				3,653,000	3,705,000	3,217,000
Home Equity Line of Credit [Member]
Residential mortgage:
Allowance for loan losses				269,000				255,000	269,000	255,000	231,000
Allowance for loan losses, charge-offs									-62,000	0	0
Allowance for loan losses, recoveries									0	0	0
Allowance for loan losses, provision (credit)									115,000	14,000	24,000
Allowance for loan losses	322,000				269,000				322,000	269,000	255,000
Commercial Loans Secured by Real Estate [Member]
Residential mortgage:
Allowance for loan losses				3,123,000				1,930,000	3,123,000	1,930,000	2,004,000
Allowance for loan losses, charge-offs									-1,521,000	-169,000	0
Allowance for loan losses, recoveries									250,000	344,000	1,000
Allowance for loan losses, provision (credit)									-94,000	1,018,000	-75,000
Allowance for loan losses	1,758,000				3,123,000				1,758,000	3,123,000	1,930,000
Commercial and Industrial [Member]
Residential mortgage:
Allowance for loan losses				591,000				581,000	591,000	581,000	946,000
Allowance for loan losses, charge-offs									-24,000	-286,000	-57,000
Allowance for loan losses, recoveries									9,000	4,000	7,000
Allowance for loan losses, provision (credit)									112,000	292,000	-315,000
Allowance for loan losses	688,000				591,000				688,000	591,000	581,000
Political Subdivisions [Member]
Residential mortgage:
Allowance for loan losses				0				0	0	0	0
Allowance for loan losses, charge-offs									0	0	0
Allowance for loan losses, recoveries									0	0	0
Allowance for loan losses, provision (credit)									0	0	0
Allowance for loan losses	0				0				0	0	0
Commercial Construction and Land [Member]
Residential mortgage:
Allowance for loan losses				267,000				234,000	267,000	234,000	267,000
Allowance for loan losses, charge-offs									-170,000	-4,000	-441,000
Allowance for loan losses, recoveries									5,000	0	0
Allowance for loan losses, provision (credit)									181,000	37,000	408,000
Allowance for loan losses	283,000				267,000				283,000	267,000	234,000
Loans Secured by Farmland [Member]
Residential mortgage:
Allowance for loan losses				115,000				129,000	115,000	129,000	126,000
Allowance for loan losses, charge-offs									0	0	0
Allowance for loan losses, recoveries									0	0	0
Allowance for loan losses, provision (credit)									50,000	-14,000	3,000
Allowance for loan losses	165,000				115,000				165,000	115,000	129,000
Multi-family (5 or more) Residential [Member]
Residential mortgage:
Allowance for loan losses				103,000				67,000	103,000	67,000	66,000
Allowance for loan losses, charge-offs									0	0	0
Allowance for loan losses, recoveries									0	0	0
Allowance for loan losses, provision (credit)									-16,000	36,000	1,000
Allowance for loan losses	87,000				103,000				87,000	103,000	67,000
Agricultural Loans [Member]
Residential mortgage:
Allowance for loan losses				30,000				27,000	30,000	27,000	27,000
Allowance for loan losses, charge-offs									0	0	0
Allowance for loan losses, recoveries									0	0	0
Allowance for loan losses, provision (credit)									1,000	3,000	0
Allowance for loan losses	31,000				30,000				31,000	30,000	27,000
Other Commercial Loans [Member]
Residential mortgage:
Allowance for loan losses				138,000				3,000	138,000	3,000	5,000
Allowance for loan losses, charge-offs									0	0	0
Allowance for loan losses, recoveries									0	0	0
Allowance for loan losses, provision (credit)									-7,000	135,000	-2,000
Allowance for loan losses	131,000				138,000				131,000	138,000	3,000
Commercial Loan [Member]
Residential mortgage:
Allowance for loan losses				4,367,000				2,971,000	4,367,000	2,971,000	3,441,000
Allowance for loan losses, charge-offs									-1,715,000	-459,000	-498,000
Allowance for loan losses, recoveries									264,000	348,000	8,000
Allowance for loan losses, provision (credit)									227,000	1,507,000	20,000
Allowance for loan losses	3,143,000				4,367,000				3,143,000	4,367,000	2,971,000
Consumer Loan [Member]
Residential mortgage:
Allowance for loan losses				193,000				228,000	193,000	228,000	228,000
Allowance for loan losses, charge-offs									-97,000	-117,000	-171,000
Allowance for loan losses, recoveries									47,000	58,000	59,000
Allowance for loan losses, provision (credit)									2,000	24,000	112,000
Allowance for loan losses	145,000				193,000				145,000	193,000	228,000
Unallocated [Member]
Residential mortgage:
Allowance for loan losses				398,000				441,000	398,000	441,000	434,000
Allowance for loan losses, charge-offs									0	0	0
Allowance for loan losses, recoveries									0	0	0
Allowance for loan losses, provision (credit)									-3,000	-43,000	7,000
Allowance for loan losses	$395,000				$398,000				$395,000	$398,000	$441,000

Note_8_Loans_Details_Outstandi

Note 8 - Loans (Details) - Outstanding Loans by Risk Rating (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Residential Mortgage:
Loans receivable	$630,545	$644,303
Residential Mortgage [Member] | First Mortgage [Member] | Pass [Member]
Residential Mortgage:
Loans receivable	280,094	286,144
Residential Mortgage [Member] | First Mortgage [Member] | Special Mention [Member]
Residential Mortgage:
Loans receivable	1,246	1,876
Residential Mortgage [Member] | First Mortgage [Member] | Substandard [Member]
Residential Mortgage:
Loans receivable	10,464	11,629
Residential Mortgage [Member] | First Mortgage [Member] | Doubtful [Member]
Residential Mortgage:
Loans receivable	78	182
Residential Mortgage [Member] | First Mortgage [Member]
Residential Mortgage:
Loans receivable	291,882	299,831
Residential Mortgage [Member] | Second Mortgage [Member] | Pass [Member]
Residential Mortgage:
Loans receivable	20,502	21,694
Residential Mortgage [Member] | Second Mortgage [Member] | Special Mention [Member]
Residential Mortgage:
Loans receivable	112	351
Residential Mortgage [Member] | Second Mortgage [Member] | Substandard [Member]
Residential Mortgage:
Loans receivable	552	995
Residential Mortgage [Member] | Second Mortgage [Member] | Doubtful [Member]
Residential Mortgage:
Loans receivable	0	0
Residential Mortgage [Member] | Second Mortgage [Member]
Residential Mortgage:
Loans receivable	21,166	23,040
Residential Mortgage [Member] | Construction Loans [Member] | Pass [Member]
Residential Mortgage:
Loans receivable	16,719	13,837
Residential Mortgage [Member] | Construction Loans [Member] | Special Mention [Member]
Residential Mortgage:
Loans receivable	20	0
Residential Mortgage [Member] | Construction Loans [Member] | Substandard [Member]
Residential Mortgage:
Loans receivable	0	72
Residential Mortgage [Member] | Construction Loans [Member] | Doubtful [Member]
Residential Mortgage:
Loans receivable	0	0
Residential Mortgage [Member] | Construction Loans [Member]
Residential Mortgage:
Loans receivable	16,739	13,909
Residential Mortgage [Member] | Pass [Member]
Residential Mortgage:
Loans receivable	353,250	355,496
Residential Mortgage [Member] | Special Mention [Member]
Residential Mortgage:
Loans receivable	1,672	2,522
Residential Mortgage [Member] | Substandard [Member]
Residential Mortgage:
Loans receivable	11,416	13,110
Residential Mortgage [Member] | Doubtful [Member]
Residential Mortgage:
Loans receivable	78	182
Residential Mortgage [Member]
Residential Mortgage:
Loans receivable	366,416	371,310
Home Equity Line of Credit [Member] | Pass [Member]
Residential Mortgage:
Loans receivable	35,935	33,821
Home Equity Line of Credit [Member] | Special Mention [Member]
Residential Mortgage:
Loans receivable	294	295
Home Equity Line of Credit [Member] | Substandard [Member]
Residential Mortgage:
Loans receivable	400	414
Home Equity Line of Credit [Member] | Doubtful [Member]
Residential Mortgage:
Loans receivable	0	0
Home Equity Line of Credit [Member]
Residential Mortgage:
Loans receivable	36,629	34,530
Commercial Loans Secured by Real Estate [Member] | Pass [Member]
Residential Mortgage:
Loans receivable	133,204	129,834
Commercial Loans Secured by Real Estate [Member] | Special Mention [Member]
Residential Mortgage:
Loans receivable	2,775	5,866
Commercial Loans Secured by Real Estate [Member] | Substandard [Member]
Residential Mortgage:
Loans receivable	9,899	11,368
Commercial Loans Secured by Real Estate [Member] | Doubtful [Member]
Residential Mortgage:
Loans receivable	0	147
Commercial Loans Secured by Real Estate [Member]
Residential Mortgage:
Loans receivable	145,878	147,215
Commercial and Industrial [Member] | Pass [Member]
Residential Mortgage:
Loans receivable	41,751	32,317
Commercial and Industrial [Member] | Special Mention [Member]
Residential Mortgage:
Loans receivable	7,246	6,697
Commercial and Industrial [Member] | Substandard [Member]
Residential Mortgage:
Loans receivable	1,042	3,138
Commercial and Industrial [Member] | Doubtful [Member]
Residential Mortgage:
Loans receivable	118	235
Commercial and Industrial [Member]
Residential Mortgage:
Loans receivable	50,157	42,387
Political Subdivisions [Member] | Pass [Member]
Residential Mortgage:
Loans receivable	17,534	16,291
Political Subdivisions [Member] | Special Mention [Member]
Residential Mortgage:
Loans receivable	0	0
Political Subdivisions [Member] | Substandard [Member]
Residential Mortgage:
Loans receivable	0	0
Political Subdivisions [Member] | Doubtful [Member]
Residential Mortgage:
Loans receivable	0	0
Political Subdivisions [Member]
Residential Mortgage:
Loans receivable	17,534	16,291
Commercial Construction and Land [Member] | Pass [Member]
Residential Mortgage:
Loans receivable	4,650	13,792
Commercial Construction and Land [Member] | Special Mention [Member]
Residential Mortgage:
Loans receivable	266	427
Commercial Construction and Land [Member] | Substandard [Member]
Residential Mortgage:
Loans receivable	2,022	2,036
Commercial Construction and Land [Member] | Doubtful [Member]
Residential Mortgage:
Loans receivable	0	748
Commercial Construction and Land [Member]
Residential Mortgage:
Loans receivable	6,938	17,003
Loans Secured by Farmland [Member] | Pass [Member]
Residential Mortgage:
Loans receivable	5,990	8,279
Loans Secured by Farmland [Member] | Special Mention [Member]
Residential Mortgage:
Loans receivable	433	758
Loans Secured by Farmland [Member] | Substandard [Member]
Residential Mortgage:
Loans receivable	1,468	1,402
Loans Secured by Farmland [Member] | Doubtful [Member]
Residential Mortgage:
Loans receivable	25	29
Loans Secured by Farmland [Member]
Residential Mortgage:
Loans receivable	7,916	10,468
Multi-family (5 or more) Residential [Member] | Pass [Member]
Residential Mortgage:
Loans receivable	8,629	10,665
Multi-family (5 or more) Residential [Member] | Special Mention [Member]
Residential Mortgage:
Loans receivable	288	316
Multi-family (5 or more) Residential [Member] | Substandard [Member]
Residential Mortgage:
Loans receivable	0	4
Multi-family (5 or more) Residential [Member] | Doubtful [Member]
Residential Mortgage:
Loans receivable	0	0
Multi-family (5 or more) Residential [Member]
Residential Mortgage:
Loans receivable	8,917	10,985
Agricultural Loans [Member] | Pass [Member]
Residential Mortgage:
Loans receivable	3,196	3,169
Agricultural Loans [Member] | Special Mention [Member]
Residential Mortgage:
Loans receivable	0	34
Agricultural Loans [Member] | Substandard [Member]
Residential Mortgage:
Loans receivable	25	48
Agricultural Loans [Member] | Doubtful [Member]
Residential Mortgage:
Loans receivable	0	0
Agricultural Loans [Member]
Residential Mortgage:
Loans receivable	3,221	3,251
Other Commercial Loans [Member] | Pass [Member]
Residential Mortgage:
Loans receivable	13,248	14,532
Other Commercial Loans [Member] | Special Mention [Member]
Residential Mortgage:
Loans receivable	86	99
Other Commercial Loans [Member] | Substandard [Member]
Residential Mortgage:
Loans receivable	0	0
Other Commercial Loans [Member] | Doubtful [Member]
Residential Mortgage:
Loans receivable	0	0
Other Commercial Loans [Member]
Residential Mortgage:
Loans receivable	13,334	14,631
Commercial Loan [Member] | Pass [Member]
Residential Mortgage:
Loans receivable	228,202	228,879
Commercial Loan [Member] | Special Mention [Member]
Residential Mortgage:
Loans receivable	11,094	14,197
Commercial Loan [Member] | Substandard [Member]
Residential Mortgage:
Loans receivable	14,456	17,996
Commercial Loan [Member] | Doubtful [Member]
Residential Mortgage:
Loans receivable	143	1,159
Commercial Loan [Member]
Residential Mortgage:
Loans receivable	253,895	262,231
Consumer Loan [Member] | Pass [Member]
Residential Mortgage:
Loans receivable	10,095	10,587
Consumer Loan [Member] | Special Mention [Member]
Residential Mortgage:
Loans receivable	22	6
Consumer Loan [Member] | Substandard [Member]
Residential Mortgage:
Loans receivable	117	169
Consumer Loan [Member] | Doubtful [Member]
Residential Mortgage:
Loans receivable	0	0
Consumer Loan [Member]
Residential Mortgage:
Loans receivable	10,234	10,762
Pass [Member]
Residential Mortgage:
Loans receivable	591,547	594,962
Special Mention [Member]
Residential Mortgage:
Loans receivable	12,788	16,725
Substandard [Member]
Residential Mortgage:
Loans receivable	25,989	31,275
Doubtful [Member]
Residential Mortgage:
Loans receivable	$221	$1,341

Note_8_Loans_Details_Loan_Bala

Note 8 - Loans (Details) - Loan Balances and Allowance for Loan Losses for Each Impairment Method (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Residential mortgage:
Loans receivable: individually evaluated	$12,316,000	$16,321,000
Loans receivable: collectively evaluated	618,229,000	627,982,000
Loans receivable	630,545,000	644,303,000
Allowance for loan losses: individually evaluated	769,000	2,333,000
Allowance for loan losses: collectively evaulated	6,172,000	5,932,000
Allowance for loan losses	7,336,000	8,663,000	6,857,000	7,705,000
Residential Mortgage [Member] | First Mortgage [Member]
Residential mortgage:
Loans receivable: individually evaluated	1,665,000	2,727,000
Loans receivable: collectively evaluated	290,217,000	297,104,000
Loans receivable	291,882,000	299,831,000
Allowance for loan losses: individually evaluated	358,000	449,000
Allowance for loan losses: collectively evaulated	2,583,000	2,525,000
Allowance for loan losses	2,941,000	2,974,000	2,619,000	3,026,000
Residential Mortgage [Member] | Second Mortgage [Member]
Residential mortgage:
Loans receivable: individually evaluated	17,000	183,000
Loans receivable: collectively evaluated	21,149,000	22,857,000
Loans receivable	21,166,000	23,040,000
Allowance for loan losses: individually evaluated	0	100,000
Allowance for loan losses: collectively evaulated	176,000	194,000
Allowance for loan losses	176,000	294,000	247,000	266,000
Residential Mortgage [Member] | Construction Loans [Member]
Residential mortgage:
Loans receivable: individually evaluated	0	0
Loans receivable: collectively evaluated	16,739,000	13,909,000
Loans receivable	16,739,000	13,909,000
Allowance for loan losses: individually evaluated	0	0
Allowance for loan losses: collectively evaulated	214,000	168,000
Allowance for loan losses	214,000	168,000	96,000	79,000
Residential Mortgage [Member]
Residential mortgage:
Loans receivable: individually evaluated	1,682,000	2,910,000
Loans receivable: collectively evaluated	364,734,000	368,400,000
Loans receivable	366,416,000	371,310,000
Allowance for loan losses: individually evaluated	358,000	549,000
Allowance for loan losses: collectively evaulated	3,295,000	3,156,000
Allowance for loan losses	3,653,000	3,705,000	3,217,000	3,602,000
Home Equity Line of Credit [Member]
Residential mortgage:
Loans receivable: individually evaluated	0	0
Loans receivable: collectively evaluated	36,629,000	34,530,000
Loans receivable	36,629,000	34,530,000
Allowance for loan losses: individually evaluated	0	0
Allowance for loan losses: collectively evaulated	322,000	269,000
Allowance for loan losses	322,000	269,000	255,000	231,000
Commercial Loans Secured by Real Estate [Member]
Residential mortgage:
Loans receivable: individually evaluated	6,537,000	7,988,000
Loans receivable: collectively evaluated	139,341,000	139,227,000
Loans receivable	145,878,000	147,215,000
Allowance for loan losses: individually evaluated	16,000	1,577,000
Allowance for loan losses: collectively evaulated	1,742,000	1,546,000
Allowance for loan losses	1,758,000	3,123,000	1,930,000	2,004,000
Commercial and Industrial [Member]
Residential mortgage:
Loans receivable: individually evaluated	663,000	1,276,000
Loans receivable: collectively evaluated	49,494,000	41,111,000
Loans receivable	50,157,000	42,387,000
Allowance for loan losses: individually evaluated	82,000	106,000
Allowance for loan losses: collectively evaulated	606,000	485,000
Allowance for loan losses	688,000	591,000	581,000	946,000
Political Subdivisions [Member]
Residential mortgage:
Loans receivable: individually evaluated	0	0
Loans receivable: collectively evaluated	17,534,000	16,291,000
Loans receivable	17,534,000	16,291,000
Allowance for loan losses: individually evaluated	0	0
Allowance for loan losses: collectively evaulated	0	0
Allowance for loan losses	0	0	0	0
Commercial Construction and Land [Member]
Residential mortgage:
Loans receivable: individually evaluated	1,939,000	2,776,000
Loans receivable: collectively evaluated	4,999,000	14,227,000
Loans receivable	6,938,000	17,003,000
Allowance for loan losses: individually evaluated	211,000	72,000
Allowance for loan losses: collectively evaulated	72,000	195,000
Allowance for loan losses	283,000	267,000	234,000	267,000
Loans Secured by Farmland [Member]
Residential mortgage:
Loans receivable: individually evaluated	1,470,000	1,318,000
Loans receivable: collectively evaluated	6,446,000	9,150,000
Loans receivable	7,916,000	10,468,000
Allowance for loan losses: individually evaluated	102,000	29,000
Allowance for loan losses: collectively evaulated	63,000	86,000
Allowance for loan losses	165,000	115,000	129,000	126,000
Multi-family (5 or more) Residential [Member]
Residential mortgage:
Loans receivable: individually evaluated	0	0
Loans receivable: collectively evaluated	8,917,000	10,985,000
Loans receivable	8,917,000	10,985,000
Allowance for loan losses: individually evaluated	0	0
Allowance for loan losses: collectively evaulated	87,000	103,000
Allowance for loan losses	87,000	103,000
Agricultural Loans [Member]
Residential mortgage:
Loans receivable: individually evaluated	25,000	48,000
Loans receivable: collectively evaluated	3,196,000	3,203,000
Loans receivable	3,221,000	3,251,000
Allowance for loan losses: individually evaluated	0	0
Allowance for loan losses: collectively evaulated	31,000	30,000
Allowance for loan losses	31,000	30,000	27,000	27,000
Other Commercial Loans [Member]
Residential mortgage:
Loans receivable: individually evaluated	0	0
Loans receivable: collectively evaluated	13,334,000	14,631,000
Loans receivable	13,334,000	14,631,000
Allowance for loan losses: individually evaluated	0	0
Allowance for loan losses: collectively evaulated	131,000	138,000
Allowance for loan losses	131,000	138,000	3,000	5,000
Commercial Loan [Member]
Residential mortgage:
Loans receivable: individually evaluated	10,634,000	13,406,000
Loans receivable: collectively evaluated	243,261,000	248,825,000
Loans receivable	253,895,000	262,231,000
Allowance for loan losses: individually evaluated	411,000	1,784,000
Allowance for loan losses: collectively evaulated	2,732,000	2,583,000
Allowance for loan losses	3,143,000	4,367,000	2,971,000	3,441,000
Consumer Loan [Member]
Residential mortgage:
Loans receivable: individually evaluated	0	5,000
Loans receivable: collectively evaluated	10,234,000	10,757,000
Loans receivable	10,234,000	10,762,000
Allowance for loan losses: individually evaluated	0	0
Allowance for loan losses: collectively evaulated	145,000	193,000
Allowance for loan losses	145,000	193,000	228,000	228,000
Unallocated [Member]
Residential mortgage:
Allowance for loan losses	$395,000	$398,000	$441,000	$434,000

Note_8_Loans_Details_Impaired_

Note 8 - Loans (Details) - Impaired Loans (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Impaired Loans [Abstract]
Impaired loans with a valuation allowance	$3,241	$9,889
Impaired loans without a valuation allowance	9,075	6,432
Total impaired loans	12,316	16,321
Valuation allowance related to impaired loans	$769	$2,333

Note_8_Loans_Details_Average_B

Note 8 - Loans (Details) - Average Balance of Impaired Loans and Income Recognized on Impaired Loans (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Average Balance of Impaired Loans and Income Recognized on Impaired Loans [Abstract]
Average investment in impaired loans	$14,359	$9,690	$7,209
Interest income recognized on impaired loans	703	426	278
Interest income recognized on a cash basis on impaired loans	$703	$426	$278

Note_8_Loans_Details_Nonaccrua

Note 8 - Loans (Details) - Nonaccrual Loans and Loans Past Due Ninety Days or More and Still Accruing (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Residential mortgage:
Loans past due 90+ days and accruing	$2,843	$3,131
Nonaccrual loans	12,610	14,934
Residential Mortgage [Member] | First Mortgage [Member]
Residential mortgage:
Loans past due 90+ days and accruing	1,989	2,016
Nonaccrual loans	3,440	3,533
Residential Mortgage [Member] | Second Mortgage [Member]
Residential mortgage:
Loans past due 90+ days and accruing	82	187
Nonaccrual loans	50	110
Residential Mortgage [Member]
Residential mortgage:
Loans past due 90+ days and accruing	2,120	2,290
Nonaccrual loans	3,512	3,777
Home Equity Line of Credit [Member]
Residential mortgage:
Loans past due 90+ days and accruing	49	87
Nonaccrual loans	22	62
Family 1-4 Residential Construction [Member]
Residential mortgage:
Loans past due 90+ days and accruing	0	0
Nonaccrual loans	0	72
Commercial Loans Secured by Real Estate [Member]
Residential mortgage:
Loans past due 90+ days and accruing	653	744
Nonaccrual loans	5,804	7,096
Commercial and Industrial [Member]
Residential mortgage:
Loans past due 90+ days and accruing	5	17
Nonaccrual loans	379	434
Commercial Construction and Land [Member]
Residential mortgage:
Loans past due 90+ days and accruing	35	5
Nonaccrual loans	1,915	2,663
Loans Secured by Farmland [Member]
Residential mortgage:
Loans past due 90+ days and accruing	0	0
Nonaccrual loans	951	902
Agricultural Loans [Member]
Residential mortgage:
Loans past due 90+ days and accruing	0	0
Nonaccrual loans	25	35
Commercial Loan [Member]
Residential mortgage:
Loans past due 90+ days and accruing	693	766
Nonaccrual loans	9,074	11,130
Consumer Loan [Member]
Residential mortgage:
Loans past due 90+ days and accruing	30	75
Nonaccrual loans	$24	$27

Note_8_Loans_Details_Contractu

Note 8 - Loans (Details) - Contractual Aging of Loans (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Residential mortgage:
Loans current & past due less than 30 days	$614,930	$625,811
Loans past due 30-89 days	7,490	8,784
Loans past due 90+ days	8,125	9,708
Loans receivable	630,545	644,303
Residential Mortgage [Member] | First Mortgage [Member]
Residential mortgage:
Loans current & past due less than 30 days	282,766	289,483
Loans past due 30-89 days	5,443	6,776
Loans past due 90+ days	3,673	3,572
Loans receivable	291,882	299,831
Residential Mortgage [Member] | Second Mortgage [Member]
Residential mortgage:
Loans current & past due less than 30 days	20,853	22,247
Loans past due 30-89 days	190	506
Loans past due 90+ days	123	287
Loans receivable	21,166	23,040
Residential Mortgage [Member] | Construction Loans [Member]
Residential mortgage:
Loans current & past due less than 30 days	16,739	13,837
Loans past due 30-89 days	0	0
Loans past due 90+ days	0	72
Loans receivable	16,739	13,909
Residential Mortgage [Member]
Residential mortgage:
Loans current & past due less than 30 days	356,658	359,830
Loans past due 30-89 days	5,891	7,400
Loans past due 90+ days	3,867	4,080
Loans receivable	366,416	371,310
Home Equity Line of Credit [Member]
Residential mortgage:
Loans current & past due less than 30 days	36,300	34,263
Loans past due 30-89 days	258	118
Loans past due 90+ days	71	149
Loans receivable	36,629	34,530
Commercial Loans Secured by Real Estate [Member]
Residential mortgage:
Loans current & past due less than 30 days	143,713	145,055
Loans past due 30-89 days	883	405
Loans past due 90+ days	1,282	1,755
Loans receivable	145,878	147,215
Commercial and Industrial [Member]
Residential mortgage:
Loans current & past due less than 30 days	49,994	41,730
Loans past due 30-89 days	43	434
Loans past due 90+ days	120	223
Loans receivable	50,157	42,387
Political Subdivisions [Member]
Residential mortgage:
Loans current & past due less than 30 days	17,534	16,291
Loans past due 30-89 days	0	0
Loans past due 90+ days	0	0
Loans receivable	17,534	16,291
Commercial Construction and Land [Member]
Residential mortgage:
Loans current & past due less than 30 days	4,897	14,303
Loans past due 30-89 days	91	32
Loans past due 90+ days	1,950	2,668
Loans receivable	6,938	17,003
Loans Secured by Farmland [Member]
Residential mortgage:
Loans current & past due less than 30 days	6,811	9,267
Loans past due 30-89 days	254	329
Loans past due 90+ days	851	872
Loans receivable	7,916	10,468
Multi-family (5 or more) Residential [Member]
Residential mortgage:
Loans current & past due less than 30 days	8,720	10,985
Loans past due 30-89 days	197	0
Loans past due 90+ days	0	0
Loans receivable	8,917	10,985
Agricultural Loans [Member]
Residential mortgage:
Loans current & past due less than 30 days	3,105	3,203
Loans past due 30-89 days	91	13
Loans past due 90+ days	25	35
Loans receivable	3,221	3,251
Other Commercial Loans [Member]
Residential mortgage:
Loans current & past due less than 30 days	13,334	14,631
Loans past due 30-89 days	0	0
Loans past due 90+ days	0	0
Loans receivable	13,334	14,631
Commercial Loan [Member]
Residential mortgage:
Loans current & past due less than 30 days	248,108	255,465
Loans past due 30-89 days	1,559	1,213
Loans past due 90+ days	4,228	5,553
Loans receivable	253,895	262,231
Consumer Loan [Member]
Residential mortgage:
Loans current & past due less than 30 days	10,164	10,516
Loans past due 30-89 days	40	171
Loans past due 90+ days	30	75
Loans receivable	$10,234	$10,762

Note_8_Loans_Details_Contractu1

Note 8 - Loans (Details) - Contractual Aging of Nonaccrual Loans (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Note 8 - Loans (Details) - Contractual Aging of Nonaccrual Loans [Line Items]
Loans current & past due less than 30 days	$614,930	$625,811
Loans past due 30-89 days	7,490	8,784
Loans past due 90+ days	8,125	9,708
Nonaccrual loans	12,610	14,934
Nonaccrual Loans [Member]
Note 8 - Loans (Details) - Contractual Aging of Nonaccrual Loans [Line Items]
Loans current & past due less than 30 days	6,959	7,878
Loans past due 30-89 days	369	479
Loans past due 90+ days	5,282	6,577
Nonaccrual loans	$12,610	$14,934

Note_8_Loans_Details_Aging_of_

Note 8 - Loans (Details) - Aging of Troubled Debt Restructings (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, curent & past due less than 30 days	$614,930	$625,811
Troubled debt restructurings, past due 30-89 days	7,490	8,784
Troubled debt restructurings, past due 90+ days	8,125	9,708
Troubled debt restructurings, nonaccrual	12,610	14,934
Troubled Debt Restructuring [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, curent & past due less than 30 days	1,725	3,254
Troubled debt restructurings, past due 30-89 days	82	13
Troubled debt restructurings, past due 90+ days	0	0
Troubled debt restructurings, nonaccrual	5,388	908
Troubled debt restructurings	$7,195	$4,175

Note_8_Loans_Details_Troubled_

Note 8 - Loans (Details) - Troubled Debt Restructurings (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Residential Mortgage [Member] | First Mortgage [Member]
Residential mortgage,
Troubled debt restructurings, number of contracts	3	6
Troubled debt restructurings, pre-modification outstanding recorded investment	$150	$677
Troubled debt restructurings, post-modification outstanding recorded investment	150	677
Residential Mortgage [Member] | Second Mortgage [Member]
Residential mortgage,
Troubled debt restructurings, number of contracts		3
Troubled debt restructurings, pre-modification outstanding recorded investment		102
Troubled debt restructurings, post-modification outstanding recorded investment		102
Commercial Loans Secured by Real Estate [Member]
Residential mortgage,
Troubled debt restructurings, number of contracts	5	2
Troubled debt restructurings, pre-modification outstanding recorded investment	6,679	866
Troubled debt restructurings, post-modification outstanding recorded investment	5,193	866
Commercial and Industrial [Member]
Residential mortgage,
Troubled debt restructurings, number of contracts	1	3	1
Troubled debt restructurings, pre-modification outstanding recorded investment	80	701	65
Troubled debt restructurings, post-modification outstanding recorded investment	80	701	65
Loans Secured by Farmland [Member]
Residential mortgage,
Troubled debt restructurings, number of contracts		4
Troubled debt restructurings, pre-modification outstanding recorded investment		512
Troubled debt restructurings, post-modification outstanding recorded investment		512
Agricultural Loans [Member]
Residential mortgage,
Troubled debt restructurings, number of contracts		1
Troubled debt restructurings, pre-modification outstanding recorded investment		13
Troubled debt restructurings, post-modification outstanding recorded investment		13
Consumer Loan [Member]
Residential mortgage,
Troubled debt restructurings, number of contracts		1
Troubled debt restructurings, pre-modification outstanding recorded investment		6
Troubled debt restructurings, post-modification outstanding recorded investment		$6

Note_8_Loans_Details_Defaults_

Note 8 - Loans (Details) - Defaults on Loans with Previous Modifications (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2014	Dec. 31, 2013
Residential mortgage:
Troubled debt restructuring defaults, number of contracts	0
Residential Mortgage [Member] | First Mortgage [Member]
Residential mortgage:
Troubled debt restructuring defaults, number of contracts		3	1
Troubled debt restructuring defaults, recorded investment		$257	$85
Residential Mortgage [Member] | Second Mortgage [Member]
Residential mortgage:
Troubled debt restructuring defaults, number of contracts		1
Troubled debt restructuring defaults, recorded investment		62
Commercial Loans Secured by Real Estate [Member]
Residential mortgage:
Troubled debt restructuring defaults, number of contracts		1	2
Troubled debt restructuring defaults, recorded investment		429	588
Commercial Construction and Land [Member]
Residential mortgage:
Troubled debt restructuring defaults, number of contracts		1	1
Troubled debt restructuring defaults, recorded investment		25	110
Loans Secured by Farmland [Member]
Residential mortgage:
Troubled debt restructuring defaults, number of contracts		4
Troubled debt restructuring defaults, recorded investment		490
Agricultural Loans [Member]
Residential mortgage:
Troubled debt restructuring defaults, number of contracts		1	1
Troubled debt restructuring defaults, recorded investment		$13	$13

Note_9_Bank_Premises_and_Equip2

Note 9 - Bank Premises and Equipment (Details) - Bank Premises and Equipment (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	$47,301	$46,776
Less: accumulated depreciation	-31,045	-29,346
Net	16,256	17,430
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	2,818	2,818
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	26,973	26,869
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	17,412	17,087
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	$98	$2

Note_9_Bank_Premises_and_Equip3

Note 9 - Bank Premises and Equipment (Details) - Depreciation Expense (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Note 9 - Bank Premises and Equipment (Details) - Depreciation Expense [Line Items]
Depreciation expense	$1,940	$2,020	$1,939
Occupancy Expense [Member]
Note 9 - Bank Premises and Equipment (Details) - Depreciation Expense [Line Items]
Depreciation expense	998	1,022	1,050
Furniture and Fixtures Expense [Member]
Note 9 - Bank Premises and Equipment (Details) - Depreciation Expense [Line Items]
Depreciation expense	$942	$998	$889

Note_10_Intangible_Assets_Deta

Note 10 - Intangible Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Disclosure Text Block [Abstract]
Goodwill, Period Increase (Decrease)	$0	$0
Goodwill	11,942,000	11,942,000
Goodwill, Acquired During Period	0	0
Amortization of Intangible Assets	$35,000	$51,000	$74,000

Note_10_Intangible_Assets_Deta1

Note 10 - Intangible Assets (Details) - Core Deposit Intangibles (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Core Deposit Intangibles [Abstract]
Gross amount	$2,034	$2,034
Less: accumulated amortization	-1,982	-1,947
Net	$52	$87

Note_10_Intangible_Assets_Deta2

Note 10 - Intangible Assets (Details) - Estimated Amortization Expense (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified
Estimated Amortization Expense [Abstract]
2015	$22
2016	12
2017	6
2018	4
2019	$3

Note_11_Deposits_Details

Note 11 - Deposits (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Disclosure Text Block [Abstract]
Interest Expense, Time Deposits, $100,000 or More	$563,000	$721,000	$1,846,000

Note_11_Deposits_Details_Sched

Note 11 - Deposits (Details) - Scheduled Maturities of Time Deposits (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified
Scheduled Maturities of Time Deposits [Abstract]
2015	$128,966
2016	64,850
2017	19,854
2018	12,128
2019	8,709
Thereafter	4,430
	$238,937

Note_11_Deposits_Details_Remai

Note 11 - Deposits (Details) - Remaining Maturities of Time Deposits In Excess of $100,000 (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified
Remaining Maturities of Time Deposits In Excess of $100,000 [Abstract]
Three months or less	$38,620
Over 3 months through 12 months	8,910
Over 1 year through 3 years	11,478
Over 3 years	8,786
Total	$67,794

Note_12_Borrowed_Funds_Details

Note 12 - Borrowed Funds (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Note 12 - Borrowed Funds (Details) [Line Items]
Short-term Debt, Weighted Average Interest Rate	0.10%	0.22%
Line of Credit Facility, Maximum Month-end Outstanding Amount	$7,919,000	$23,385,000	$20,120,000
Available-for-sale Securities Pledged as Collateral	369,945,000	323,613,000
Short-term Debt	5,537,000	23,385,000
Debt, Weighted Average Interest Rate		3.60%
Carrying Value of Securities Sold under Repurchase Agreements and Deposits Received for Securities Loaned	15,229,000	11,269,000
Gain (Loss) on Repurchase of Debt Instrument		-1,023,000	-2,333,000
Debt Instrument, Repurchase Amount		7,000,000
Securities Sold under Agreements to Repurchase, Asset	70,982,000	79,814,000
Repurchase Agreements [Member]
Note 12 - Borrowed Funds (Details) [Line Items]
Debt, Weighted Average Interest Rate	4.02%	4.01%	3.97%
Short-term Debt, Average Outstanding Amount	61,000,000	62,630,000	78,790,000
Securities Sold under Agreements to Repurchase [Member]
Note 12 - Borrowed Funds (Details) [Line Items]
Short-term Debt	5,537,000	3,385,000
Debt, Weighted Average Interest Rate	0.10%	0.10%
Federal Home Loan Bank of Pittsburgh [Member]
Note 12 - Borrowed Funds (Details) [Line Items]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	446,780,000	453,792,000
Federal Home Loan Bank Stock	1,454,000	3,656,000
Short-term Debt		20,000,000
Debt Instrument, Interest Rate, Stated Percentage		0.24%
Maximum [Member]
Note 12 - Borrowed Funds (Details) [Line Items]
Securities Sold under Agreements to Repurchase	61,000,000	68,000,000	85,000,000
Agreements Contractually Schedueled to Mature in 2017 [Member]
Note 12 - Borrowed Funds (Details) [Line Items]
Gain (Loss) on Repurchase of Debt Instrument			-2,190,000
Repayments of Debt			12,000,000
Other Correspondent Banks [Member]
Note 12 - Borrowed Funds (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	45,000,000	45,000,000
Long-term Line of Credit	0	0
Federal Reserve Bank of Philadelphia [Member]
Note 12 - Borrowed Funds (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	25,367,000	26,078,000
Long-term Line of Credit	0	0
Available-for-sale Securities Pledged as Collateral	$26,092,000	$27,188,000

Note_12_Borrowed_Funds_Details1

Note 12 - Borrowed Funds (Details) - Short-term Borrowings (USD $)	Dec. 31, 2014	Dec. 31, 2013
Short-term Debt [Line Items]
Short-term borrowings	$5,537,000	$23,385,000
Federal Home Loan Bank Advances [Member] | Federal Home Loan Bank of Pittsburgh [Member]
Short-term Debt [Line Items]
Short-term borrowings	0	20,000,000
Securities Sold under Agreements to Repurchase [Member]
Short-term Debt [Line Items]
Short-term borrowings	5,537,000	3,385,000
Federal Home Loan Bank of Pittsburgh [Member]
Short-term Debt [Line Items]
Short-term borrowings		$20,000,000

Note_12_Borrowed_Funds_Details2

Note 12 - Borrowed Funds (Details) - Long-term Borrowings (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]
Long-term borrowings	$73,060	$73,338
Repurchase Agreements [Member]
Debt Instrument [Line Items]
Long-term borrowings	61,000	61,000
Federal Home Loan Bank Advances [Member]
Debt Instrument [Line Items]
Long-term borrowings	$12,060	$12,338

Note_12_Borrowed_Funds_Details3

Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities [Line Items]
Repurchase agreements	$73,060	$73,338
Repurchase Agreements [Member]
Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities [Line Items]
Repurchase agreements	61,000	61,000
Federal Home Loan Bank of Pittsburgh [Member] | Federal Home Loan Bank Borrowings Loan Maturing In 2016 With Rate Of 6.86% [Member]
Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities [Line Items]
Long-term borrowings from FHLB - Pittsburgh	107	153
Federal Home Loan Bank of Pittsburgh [Member] | Federal Home Loan Bank Borrowings Loan Maturing In 2017 With Rate Of 6.83% [Member]
Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities [Line Items]
Long-term borrowings from FHLB - Pittsburgh	16	22
Federal Home Loan Bank of Pittsburgh [Member] | Federal Home Loan Bank Borrowings Loan Maturing In 2017 With Rate Of 3.81% [Member]
Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities [Line Items]
Long-term borrowings from FHLB - Pittsburgh	10,000	10,000
Federal Home Loan Bank of Pittsburgh [Member] | Federal Home Loan Bank Borrowings Loan Maturing In 2020 With Rate Of 4.79% [Member]
Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities [Line Items]
Long-term borrowings from FHLB - Pittsburgh	987	1,146
Federal Home Loan Bank of Pittsburgh [Member] | Federal Home Loan Bank Borrowings Loan Maturing In 2025 With Rate Of 4.91% [Member]
Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities [Line Items]
Long-term borrowings from FHLB - Pittsburgh	950	1,017
Federal Home Loan Bank of Pittsburgh [Member]
Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities [Line Items]
Long-term borrowings from FHLB - Pittsburgh	12,060	12,338
Repurchase Agreement Maturing in 2017 with a Rate of 3.595% [Member]
Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities [Line Items]
Repurchase agreements	27,000	27,000
Repurchase Agreement Maturing in 2017 with a Rate of 4.265% [Member]
Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities [Line Items]
Repurchase agreements	$34,000	$34,000

Note_12_Borrowed_Funds_Details4

Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities (Parentheticals)	Dec. 31, 2014	Dec. 31, 2013
Federal Home Loan Bank of Pittsburgh [Member] | Federal Home Loan Bank Borrowings Loan Maturing In 2016 With Rate Of 6.86% [Member]
Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities (Parentheticals) [Line Items]
Interest rate	6.86%	6.86%
Federal Home Loan Bank of Pittsburgh [Member] | Federal Home Loan Bank Borrowings Loan Maturing In 2017 With Rate Of 6.83% [Member]
Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities (Parentheticals) [Line Items]
Interest rate	6.83%	6.83%
Federal Home Loan Bank of Pittsburgh [Member] | Federal Home Loan Bank Borrowings Loan Maturing In 2017 With Rate Of 3.81% [Member]
Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities (Parentheticals) [Line Items]
Interest rate	3.81%	3.81%
Federal Home Loan Bank of Pittsburgh [Member] | Federal Home Loan Bank Borrowings Loan Maturing In 2020 With Rate Of 4.79% [Member]
Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities (Parentheticals) [Line Items]
Interest rate	4.79%	4.79%
Federal Home Loan Bank of Pittsburgh [Member] | Federal Home Loan Bank Borrowings Loan Maturing In 2025 With Rate Of 4.91% [Member]
Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities (Parentheticals) [Line Items]
Interest rate	4.91%	4.91%
Federal Home Loan Bank of Pittsburgh [Member]
Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities (Parentheticals) [Line Items]
Interest rate		0.24%
Repurchase Agreement Maturing in 2017 with a Rate of 3.595% [Member]
Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities (Parentheticals) [Line Items]
Interest rate	3.60%	3.60%
Repurchase Agreement Maturing in 2017 with a Rate of 4.265% [Member]
Note 12 - Borrowed Funds (Details) - Long-term Borrowing Maturities (Parentheticals) [Line Items]
Interest rate	4.27%	4.27%

Note_13_Employee_and_Postretir2

Note 13 - Employee and Postretirement Benefit Plans (Details) (USD $)	0 Months Ended	12 Months Ended			2 Months Ended	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Feb. 27, 2015	Dec. 31, 2015
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Pension and Other Postretirement Benefit Contributions		$595,000	$557,000	$587,000
Employee Stock Ownership Plan (ESOP), Diversification Feature, Age Requirement	55	55
Deferred Compensation Arrangement with Individual, Requisite Service Period		10 years
Employee Stock Ownership Plan (ESOP), Diversification Feature, Percentage	50.00%	50.00%
Employee Stock Ownership Plan (ESOP), Diversification Feature, Term		6 years
Employee Stock Ownership Plan (ESOP), Shares Repurchased (in Shares)	0	0	0
Employee Stock Ownership Plan (ESOP), Shares in ESOP (in Shares)	409,197	409,197	362,888
Employee Stock Ownership Plan (ESOP), Cash Contributions to ESOP		512,000	509,000	507,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	5 years 146 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	668,000	668,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value		90,000	29,000	72,000
Allocated Share-based Compensation Expense		565,000	696,000	567,000
Equity Securities [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations		26.00%	26.00%
Debt Securities [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations		61.00%	61.00%
Alternative Funds [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations		11.00%	11.00%
Cash and Cash Equivalents [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations		2.00%	2.00%
Employee Stock Option [Member] | Stock Incentive Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		6 months
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period		10 years
Employee Stock Option [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)		39,027,000
Allocated Share-based Compensation Expense		153,000	242,000	247,000
Restricted Stock [Member] | Subsequent Event [Member] | Stock Incentive Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period					4 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)					22,496
Share-based Compensation Arrangement by Share-based Payment Award, Contingent Vesting Shares (in Shares)					20,298
Restricted Stock [Member] | Subsequent Event [Member] | Independent Directors Stock Incentive Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period					1 year
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)					7,130
Restricted Stock [Member] | Minimum [Member] | Stock Incentive Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		3 years
Restricted Stock [Member] | Maximum [Member] | Stock Incentive Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		4 years
Restricted Stock [Member] | Independent Directors Stock Incentive Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		3 years
Restricted Stock [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	604,000	604,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	1 year 6 months
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)		16,711,000
Allocated Share-based Compensation Expense		412,000	454,000	320,000
Scenario, Forecast [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Allocated Share-based Compensation Expense						628,000
Pension Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Defined Benefit Plan, Settlements, Benefit Obligation		781,000	0
Defined Benefit Plan, Benefits Paid, Percentage of Benefit Obligation		42.00%
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements		-196,000	0	0
Defined Benefit Plan, Future Amortization of Gain (Loss)		-10,000
Defined Benefit Plan, Accumulated Benefit Obligation	1,085,000	1,085,000	1,733,000
Other Postretirement Benefit Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Defined Benefit Plan, Settlements, Benefit Obligation		0	0
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements		0	0	0
Defined Benefit Plan, Future Amortization of Gain (Loss)		0
Defined Benefit Plan, Future Amortization of Prior Service Cost (Credit)		31,000
Supplemental Employee Retirement Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Officers' Compensation		$138,000	$186,000	$140,000
Stock Incentive Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)	850,000	850,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares)	286,386	286,386
Independent Directors Stock Incentive Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)	135,000	135,000
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period		10 years
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares)	30,775	30,775

Note_13_Employee_and_Postretir3

Note 13 - Employee and Postretirement Benefit Plans (Details) - Funded Status of Defined Benefit Plans (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Pension Plan [Member]
CHANGE IN BENEFIT OBLIGATION:
Benefit obligation at beginning of year	$1,733,000	$1,783,000
Service cost	0	0	0
Interest cost	73,000	71,000	72,000
Plan participants' contributions	0	0
Actuarial loss (gain)	76,000	-104,000
Plan amendments	0	0
Benefits paid	-16,000	-17,000
Settlement of plan obligation	-781,000	0
Benefit obligation at end of year	1,085,000	1,733,000	1,783,000
CHANGE IN PLAN ASSETS:
Fair value of plan assets at beginning of year	1,968,000	1,842,000
Actual return on plan assets	37,000	143,000
Employer contribution	0	0
Plan participants' contributions	0	0
Benefits paid	-16,000	-17,000
Settlement of plan obligation	-781,000	0
Fair value of plan assets at end of year	1,208,000	1,968,000	1,842,000
Funded (underfunded) status at end of year	123,000	235,000
Other Postretirement Benefit Plan [Member]
CHANGE IN BENEFIT OBLIGATION:
Benefit obligation at beginning of year	1,391,000	2,081,000
Service cost	34,000	41,000	91,000
Interest cost	57,000	55,000	81,000
Plan participants' contributions	198,000	208,000
Actuarial loss (gain)	-48,000	-171,000
Plan amendments	0	-557,000
Benefits paid	-254,000	-266,000
Settlement of plan obligation	0	0
Benefit obligation at end of year	1,378,000	1,391,000	2,081,000
CHANGE IN PLAN ASSETS:
Fair value of plan assets at beginning of year	0	0
Actual return on plan assets	0	0
Employer contribution	56,000	58,000
Plan participants' contributions	198,000	208,000
Benefits paid	-254,000	-266,000
Settlement of plan obligation	0	0
Fair value of plan assets at end of year	0	0	0
Funded (underfunded) status at end of year	($1,378,000)	($1,391,000)

Note_13_Employee_and_Postretir4

Note 13 - Employee and Postretirement Benefit Plans (Details) - Plan Assets and liabilities (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Pension Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) - Plan Assets and liabilities [Line Items]
Other assets	$123	$235
Other Postretirement Benefit Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) - Plan Assets and liabilities [Line Items]
Accrued interest and other liabilities	$1,378	$1,391

Note_13_Employee_and_Postretir5

Note 13 - Employee and Postretirement Benefit Plans (Details) - Items Included in Accumulated Other Comprehensive Income (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Note 13 - Employee and Postretirement Benefit Plans (Details) - Items Included in Accumulated Other Comprehensive Income [Line Items]
Total	($79)	($11)
Pension Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) - Items Included in Accumulated Other Comprehensive Income [Line Items]
Prior service cost	0	0
Net actuarial loss	269	357
Total	269	357
Other Postretirement Benefit Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) - Items Included in Accumulated Other Comprehensive Income [Line Items]
Prior service cost	-402	-433
Net actuarial loss	11	59
Total	($391)	($374)

Note_13_Employee_and_Postretir6

Note 13 - Employee and Postretirement Benefit Plans (Details) - Net Periodic Benefit Costs (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$0	$0	$0
Interest cost	73,000	71,000	72,000
Expected return on plan assets	-88,000	-90,000	-72,000
Amortization of transition (asset) obligation	0	0	0
Amortization of prior service cost	0	0	0
Recognized net actuarial loss	19,000	32,000	27,000
Loss on settlement	196,000	0	0
Total net periodic benefit cost	200,000	13,000	27,000
Other Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	34,000	41,000	91,000
Interest cost	57,000	55,000	81,000
Expected return on plan assets	0	0	0
Amortization of transition (asset) obligation	0	0	37,000
Amortization of prior service cost	-31,000	-31,000	13,000
Recognized net actuarial loss	0	1,000	0
Loss on settlement	0	0	0
Total net periodic benefit cost	$60,000	$66,000	$222,000

Note_13_Employee_and_Postretir7

Note 13 - Employee and Postretirement Benefit Plans (Details) - Assumptions Used to Determine Net Periodic Benefit Cost	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Pension Plan [Member]
Citizens Trust Company Retirement Plan and postretirement plan:
Discount rate	4.50%	4.00%	4.50%
Expected return on plan assets	5.31%	5.31%	7.50%
Rate of compensation increase
Other Postretirement Benefit Plan [Member]
Citizens Trust Company Retirement Plan and postretirement plan:
Discount rate	4.00%	4.00%	4.50%
Expected return on plan assets
Rate of compensation increase

Note_13_Employee_and_Postretir8

Note 13 - Employee and Postretirement Benefit Plans (Details) - Assumptions Used to Determine Benefit Obligations	Dec. 31, 2014	Dec. 31, 2013
Pension Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) - Assumptions Used to Determine Benefit Obligations [Line Items]
Discount rate	3.75%	4.50%
Rate of compensation increase
Other Postretirement Benefit Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) - Assumptions Used to Determine Benefit Obligations [Line Items]
Discount rate	4.00%	4.75%
Rate of compensation increase

Note_13_Employee_and_Postretir9

Note 13 - Employee and Postretirement Benefit Plans (Details) - Estimated Future Benefit Payments (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified
Pension Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) - Estimated Future Benefit Payments [Line Items]
2015	$235
2016	41
2017	16
2018	401
2019	38
2020-2024	208
Other Postretirement Benefit Plan [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) - Estimated Future Benefit Payments [Line Items]
2015	88
2016	87
2017	88
2018	97
2019	98
2020-2024	$515

Recovered_Sheet1

Note 13 - Employee and Postretirement Benefit Plans (Details) - The Fair Values of Pension Plan Assets	Dec. 31, 2014	Dec. 31, 2013
Note 13 - Employee and Postretirement Benefit Plans (Details) - The Fair Values of Pension Plan Assets [Line Items]
Weighted average asset allocation	100.00%	100.00%
Cash and Cash Equivalents [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) - The Fair Values of Pension Plan Assets [Line Items]
Weighted average asset allocation	3.00%	36.00%
Debt Securities [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) - The Fair Values of Pension Plan Assets [Line Items]
Weighted average asset allocation	37.00%	24.00%
Equity Securities [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) - The Fair Values of Pension Plan Assets [Line Items]
Weighted average asset allocation	47.00%	30.00%
Alternative Funds [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) - The Fair Values of Pension Plan Assets [Line Items]
Weighted average asset allocation	13.00%	10.00%

Recovered_Sheet2

Note 13 - Employee and Postretirement Benefit Plans (Details) - Stock Option Fair Value Assumptions	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Stock Option Fair Value Assumptions [Abstract]
Volatility	39.00%	41.00%	41.00%
Expected option lives (in years)	8 years	8 years	7 years
Risk-free interest rate	2.85%	1.60%	1.53%
Dividend yield	4.33%	3.69%	3.97%

Recovered_Sheet3

Note 13 - Employee and Postretirement Benefit Plans (Details) - Stock-Based Compensation Expense (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based combensation	$565,000	$696,000	$567,000
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based combensation	153,000	242,000	247,000
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based combensation	$412,000	$454,000	$320,000

Recovered_Sheet4

Note 13 - Employee and Postretirement Benefit Plans (Details) - Stock Option Activity (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Stock Option Activity [Abstract]
Outstanding, beginning of year (in Shares)	358,176	337,670	301,797
Outstanding, beginning of year	$19.03	$19.08	$19.05
Granted (in Shares)	39,027	64,050	64,757
Granted	$20.45	$19.21	$18.54
Exercised (in Shares)	-50,415	-10,656	-17,284
Exercised	$17.57	$17.22	$16.20
Forfeited (in Shares)	-16,424	-14,135	-6,830
Forfeited	$20.03	$20.13	$21.51
Expired (in Shares)	-14,207	-18,753	-4,770
Expired	$26.59	$20.73	$17
Outstanding, end of year (in Shares)	316,157	358,176	337,670
Outstanding, end of year	$19.05	$19.03	$19.08
Options exercisable at year-end (in Shares)	316,157	358,176	337,670
Options exercisable at year-end	$19.05	$19.03	$19.08
Weighted-average fair value of options granted	$5.50	$5.56	$5.15
Weighted-average fair value of options forfeited	$4.89	$3.77	$4.03

Recovered_Sheet5

Note 13 - Employee and Postretirement Benefit Plans (Details) - Non-Vested Stock Options and Restricted Stock Activity (USD $)	12 Months Ended
	Dec. 31, 2014
Employee Stock Option [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) - Non-Vested Stock Options and Restricted Stock Activity [Line Items]
Outstanding, December 31, 2013	0
Granted	39,027,000
Granted (in Dollars per share)	$5.50
Vested	-39,027,000
Vested (in Dollars per share)	$5.50
Forfeited	0
Outstanding, December 31, 2014	0
Restricted Stock [Member]
Note 13 - Employee and Postretirement Benefit Plans (Details) - Non-Vested Stock Options and Restricted Stock Activity [Line Items]
Outstanding, December 31, 2013	67,878,000
Outstanding, December 31, 2013 (in Dollars per share)	$18.67
Granted	16,711,000
Granted (in Dollars per share)	$20.40
Vested	-24,695,000
Vested (in Dollars per share)	$18.18
Forfeited	-7,458,000
Forfeited (in Dollars per share)	$19.47
Outstanding, December 31, 2014	52,436,000
Outstanding, December 31, 2014 (in Dollars per share)	$19.34

Note_14_Income_Taxes_Details

Note 14 - Income Taxes (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014
Note 14 - Income Taxes (Details) [Line Items]
Income Tax Credits and Adjustments	$160,000
Income Tax Expense (Benefit) Increase (Decrease)	85,000
Unrecognized Tax Benefits		0
Affordable Housing Partnership [Member] | Other Assets [Member]
Note 14 - Income Taxes (Details) [Line Items]
Investments		906,000
Scenario, Forecast [Member]
Note 14 - Income Taxes (Details) [Line Items]
Income Tax Credits and Adjustments		159,000
Income Tax Expense (Benefit) Increase (Decrease)		$83,000

Note_14_Income_Taxes_Details_N

Note 14 - Income Taxes (Details) - Net Deferred Tax Assets (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Deferred tax assets:
Unrealized holding losses on securities	$0	$541
Net realized losses on securities	144	91
Allowance for loan losses	2,568	3,032
Credit for alternative minimum tax paid	537	1,905
Other deferred tax assets	2,595	2,332
Total deferred tax assets	5,844	7,901
Deferred tax liabilities:
Unrealized holding gains on securities	2,844	0
Defined benefit plans - ASC 835	43	6
Bank premises and equipment	1,134	1,314
Core deposit intangibles	18	30
Other deferred tax liabilities	137	207
Total deferred tax liabilities	4,176	1,557
Deferred tax asset, net	$1,668	$6,344

Note_14_Income_Taxes_Details_P

Note 14 - Income Taxes (Details) - Provision for Income Taxes (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Provision for Income Taxes [Abstract]
Currently payable	$1,482	$1,411	$1,400	$1,399	$1,349	$1,579	$1,671	$1,584	$4,280	$4,125	$4,545
Tax expense resulting from allocations of certain tax benefits to equity or as a reduction in other assets									158	219	121
Deferred									1,254	1,839	3,760
Total provision									$5,692	$6,183	$8,426

Note_14_Income_Taxes_Details_R

Note 14 - Income Taxes (Details) - Reconciliation of Income Tax (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Reconciliation of Income Tax [Abstract]
Expected provision	$7,973	$8,672	$10,896
Expected provision	35.00%	35.00%	35.00%
Tax-exempt interest income	-1,982	-2,137	-2,287
Tax-exempt interest income	-8.70%	-8.62%	-7.35%
Nondeductible interest expense	56	60	92
Nondeductible interest expense	0.25%	0.24%	0.30%
Dividends received deduction	-79	-76	-78
Dividends received deduction	-0.35%	-0.31%	-0.25%
Increase in cash surrender value of life insurance	-132	-140	-159
Increase in cash surrender value of life insurance	-0.58%	-0.57%	-0.51%
Employee stock option compensation	41	67	62
Employee stock option compensation	0.18%	0.27%	0.20%
Tax benefit from limited partnership investment	-83	-85	0
Tax benefit from limited partnership investment	-0.36%	-0.34%	0.00%
Other, net	-101	-178	-100
Other, net	-0.45%	-0.72%	-0.32%
Effective income tax provision	$5,692	$6,183	$8,426
Effective income tax provision	24.99%	24.95%	27.07%

Note_15_Related_Party_Transact2

Note 15 - Related Party Transactions (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Related Party Transactions [Abstract]
Related Party Deposit Liabilities	$3,203,000	$3,897,000

Note_15_Related_Party_Transact3

Note 15 - Related Party Transactions (Details) - Related Party Loans (Management [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Management [Member]
Related Party Transaction [Line Items]
Beginning balance	$12,547	$14,125	$12,997
New loans	188	1,110	2,517
Repayments	-1,358	-2,723	-1,424
Other changes	646	35	35
Ending balance	$12,023	$12,547	$14,125

Note_16_Offbalance_Sheet_Risk_1

Note 16 - Off-balance Sheet Risk (Details) - Financial Instruments Whose Contract Amounts Represent Credit Risk (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Commitments to Extend Credit [Member]
Concentration Risk [Line Items]
Credit risk financial instrument	$143,863	$139,866
Standby Letters of Credit [Member]
Concentration Risk [Line Items]
Credit risk financial instrument	$13,415	$21,590

Note_16_Offbalance_Sheet_Risk_2

Note 16 - Off-balance Sheet Risk (Details) - Standby Letters of Credit Expirations (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified
Standby Letters of Credit Expirations [Abstract]
2015	$8,932
2016	2,183
2017	60
2019	30
2020 and Thereafter	2,210
Total	$13,415

Note_18_Regulatory_Matters_Det

Note 18 - Regulatory Matters (Details) (USD $)	Dec. 31, 2014
Disclosure Text Block [Abstract]
Retained Earnings, Unappropriated	$84,022,000
Tangible Capital to Tangible Assets	10.00%
Tangible Capital	$15,580,000

Note_18_Regulatory_Matters_Det1

Note 18 - Regulatory Matters (Details) - Capital Amounts and Ratios (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Greater Than or Equal To [Member] | Consolidated Entities [Member]
Total capital to risk-weighted assets:
Total capital to risk-wP5ightP5d assP5ts - minimum capital requirement ratio	8.00%	8.00%
Tier 1 capital to risk-weighted assets:
TiP5r 1 capital to risk-wP5ightP5d assP5ts - minimum capital requirement ratio	4.00%	4.00%
Tier 1 capital to average assets:
TiP5r 1 capital to avP5ragP5 assP5ts - minimum capital requirement ratio	4.00%	4.00%
Greater Than or Equal To [Member] | Citizens and Northern Bank [Member]
Total capital to risk-weighted assets:
Total capital to risk-wP5ightP5d assP5ts - minimum capital requirement ratio	8.00%	8.00%
Total capital to risk-wP5ightP5d assP5ts - minimum to be well capitalized under prompt corrective action provisions ratio	10.00%	10.00%
Tier 1 capital to risk-weighted assets:
TiP5r 1 capital to risk-wP5ightP5d assP5ts - minimum capital requirement ratio	4.00%	4.00%
TiP5r 1 capital to risk-wP5ightP5d assP5ts - minimum to be well capitalized under prompt corrective action provisions ratio	6.00%	6.00%
Tier 1 capital to average assets:
TiP5r 1 capital to avP5ragP5 assP5ts - minimum capital requirement ratio	4.00%	4.00%
TiP5r 1 capital to avP5ragP5 assP5ts - minimum to be well capitalized under prompt corrective action provisions ratio	5.00%	5.00%
Consolidated Entities [Member]
Total capital to risk-weighted assets:
Total capital to risk-wP5ightP5d assP5ts - actual amount	179,588	177,693
Total capital to risk-wP5ightP5d assP5ts - actual ratio	27.60%	26.60%
Total capital to risk-wP5ightP5d assP5ts - minimum capital requirement amount	52,051	53,449
Total capital to risk-wP5ightP5d assP5ts - minimum to be well capitalized under prompt corrective action provisions amount
Tier 1 capital to risk-weighted assets:
TiP5r 1 capital to risk-wP5ightP5d assP5ts - actual amount	170,880	168,039
TiP5r 1 capital to risk-wP5ightP5d assP5ts - actual ratio	26.26%	25.15%
TiP5r 1 capital to risk-wP5ightP5d assP5ts - minimum capital requirement amount	26,026	26,724
TiP5r 1 capital to risk-wP5ightP5d assP5ts - minimum to be well capitalized under prompt corrective action provisions amount
Tier 1 capital to average assets:
TiP5r 1 capital to avP5ragP5 assP5ts - actual amount	170,880	168,039
TiP5r 1 capital to avP5ragP5 assP5ts - actual ratio	13.89%	13.78%
TiP5r 1 capital to avP5ragP5 assP5ts - minimum capital requirement amount	49,224	48,783
TiP5r 1 capital to avP5ragP5 assP5ts - minimum to be well capitalized under prompt corrective action provisions amount
Citizens and Northern Bank [Member]
Total capital to risk-weighted assets:
Total capital to risk-wP5ightP5d assP5ts - actual amount	156,420	162,610
Total capital to risk-wP5ightP5d assP5ts - actual ratio	24.33%	24.65%
Total capital to risk-wP5ightP5d assP5ts - minimum capital requirement amount	51,442	52,783
Total capital to risk-wP5ightP5d assP5ts - minimum to be well capitalized under prompt corrective action provisions amount	64,303	65,979
Tier 1 capital to risk-weighted assets:
TiP5r 1 capital to risk-wP5ightP5d assP5ts - actual amount	149,055	154,323
TiP5r 1 capital to risk-wP5ightP5d assP5ts - actual ratio	23.18%	23.39%
TiP5r 1 capital to risk-wP5ightP5d assP5ts - minimum capital requirement amount	25,721	26,392
TiP5r 1 capital to risk-wP5ightP5d assP5ts - minimum to be well capitalized under prompt corrective action provisions amount	38,582	39,588
Tier 1 capital to average assets:
TiP5r 1 capital to avP5ragP5 assP5ts - actual amount	149,055	154,323
TiP5r 1 capital to avP5ragP5 assP5ts - actual ratio	12.22%	12.77%
TiP5r 1 capital to avP5ragP5 assP5ts - minimum capital requirement amount	48,798	48,348
TiP5r 1 capital to avP5ragP5 assP5ts - minimum to be well capitalized under prompt corrective action provisions amount	60,998	60,435

Note_19_Parent_Company_Only_De

Note 19 - Parent Company Only (Details) - Condensed Balance Sheet (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Investment in subsidiaries:
Other assets	$8,766	$12,140
TOTAL ASSETS	1,241,963	1,237,695
LIABILITIES AND STOCKHOLDERS' EQUITY
Other liabilities	7,015	6,984
Stockholders' equity	188,362	179,472	182,786	167,385
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	1,241,963	1,237,695
Citizens and Northern Bank [Member] | Parent Company [Member]
Investment in subsidiaries:
Equity method investment	164,551	163,711
Citizens and Northern Investment Corporation [Member] | Parent Company [Member]
Investment in subsidiaries:
Equity method investment	10,822	10,216
Bucktail Life Insurance Company [Member] | Parent Company [Member]
Investment in subsidiaries:
Equity method investment	3,336	3,254
Parent Company [Member]
ASSETS
Cash	9,624	2,297
Investment in subsidiaries:
Other assets	36	0
TOTAL ASSETS	188,369	179,478
LIABILITIES AND STOCKHOLDERS' EQUITY
Other liabilities	7	6
Stockholders' equity	188,362	179,472
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$188,369	$179,478

Note_19_Parent_Company_Only_De1

Note 19 - Parent Company Only (Details) - Condensed Income Statement (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Condensed Income Statements, Captions [Line Items]
Dividends from Citizens & Northern Bank									$307,000	$295,000	$305,000
Income before equity in undistributed income of subsidiaries	5,850,000	5,678,000	5,563,000	5,687,000	5,574,000	6,268,000	6,645,000	6,290,000	22,778,000	24,777,000	31,131,000
NET INCOME	4,368,000	4,267,000	4,163,000	4,288,000	4,225,000	4,689,000	4,974,000	4,706,000	17,086,000	18,594,000	22,705,000
Parent Company [Member]
Condensed Income Statements, Captions [Line Items]
Dividends from Citizens & Northern Bank									22,608,000	11,108,000	9,245,000
Expenses									-112,000	-108,000	-105,000
Income before equity in undistributed income of subsidiaries									22,496,000	11,000,000	9,140,000
Equity in undistributed (loss) income of subsidiaries									-5,410,000	7,594,000	13,565,000
NET INCOME									$17,086,000	$18,594,000	$22,705,000

Note_19_Parent_Company_Only_De2

Note 19 - Parent Company Only (Details) - Condensed Statement of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$17,086,000	$18,594,000	$22,705,000
Adjustments to reconcile net income to net cash provided by operating activities:
(Increase) decrease in other assets	1,395,000	3,234,000	-1,043,000
Increase in other liabilities	-90,000	-679,000	674,000
Net Cash Provided by Operating Activities	22,281,000	30,572,000	27,652,000
CASH FLOWS FROM FINANCING ACTIVITIES:
Tax benefit from compensation plans, net	157,000	124,000	118,000
Purchase of treasury stock	-4,002,000	0	0
Dividends paid	-11,392,000	-10,916,000	-9,061,000
Net Cash Used in Financing Activities	-19,767,000	-55,877,000	-64,087,000
INCREASE IN CASH AND CASH EQUIVALENTS	-6,972,000	-16,425,000	-1,799,000
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	38,591,000	55,016,000	56,815,000
CASH AND CASH EQUIVALENTS, END OF YEAR	31,619,000	38,591,000	55,016,000
Parent Company [Member]
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	17,086,000	18,594,000	22,705,000
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed net loss (income) of Subsidiaries	5,410,000	-7,594,000	-13,565,000
(Increase) decrease in other assets	-36,000	7,000	116,000
Increase in other liabilities	1,000	0	6,000
Net Cash Provided by Operating Activities	22,461,000	11,007,000	9,262,000
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from sale of treasury stock	123,000	184,000	229,000
Tax benefit from compensation plans, net	137,000	127,000	104,000
Purchase of treasury stock	-4,002,000	0	0
Dividends paid	-11,392,000	-10,916,000	-9,061,000
Net Cash Used in Financing Activities	-15,134,000	-10,605,000	-8,728,000
INCREASE IN CASH AND CASH EQUIVALENTS	7,327,000	402,000	534,000
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	2,297,000	1,895,000	1,361,000
CASH AND CASH EQUIVALENTS, END OF YEAR	$9,624,000	$2,297,000	$1,895,000

Note_20_Summary_of_Quarterly_C2

Note 20 - Summary of Quarterly Consolidated Financial Data (Unaudited) (Details) - Summarized Quarterly Financial Data (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Summarized Quarterly Financial Data [Abstract]
Interest income	$11,468,000	$11,572,000	$11,563,000	$11,406,000	$11,885,000	$12,027,000	$12,355,000	$12,647,000	$46,009,000	$48,914,000	$56,632,000
Interest expense	1,257,000	1,287,000	1,290,000	1,288,000	1,354,000	1,396,000	1,415,000	1,600,000	5,122,000	5,765,000	9,031,000
Net interest income	10,211,000	10,285,000	10,273,000	10,118,000	10,531,000	10,631,000	10,940,000	11,047,000	40,887,000	43,149,000	47,601,000
(Credit) provision for loan losses	123,000	218,000	446,000	-311,000	1,559,000	239,000	66,000	183,000	476,000	2,047,000	288,000
Net interest income after (credit) provision for loan losses	10,088,000	10,067,000	9,827,000	10,429,000	8,972,000	10,392,000	10,874,000	10,864,000	40,411,000	41,102,000	47,313,000
Other income	3,802,000	3,887,000	3,980,000	3,751,000	4,124,000	4,293,000	4,191,000	3,843,000
Net gains on available-for-sale securities	210,000	760,000	103,000	31,000	266,000	193,000	100,000	1,159,000	1,104,000	1,718,000	2,682,000
Loss on prepayment of debt					0	0	0	1,023,000	0	1,023,000	2,333,000
Other expenses	8,250,000	9,036,000	8,347,000	8,524,000	7,788,000	8,610,000	8,520,000	8,553,000	5,423,000	5,298,000	5,227,000
Income before income tax provision	5,850,000	5,678,000	5,563,000	5,687,000	5,574,000	6,268,000	6,645,000	6,290,000	22,778,000	24,777,000	31,131,000
Income tax provision	1,482,000	1,411,000	1,400,000	1,399,000	1,349,000	1,579,000	1,671,000	1,584,000	4,280,000	4,125,000	4,545,000
Net income available to common shareholders	$4,368,000	$4,267,000	$4,163,000	$4,288,000	$4,225,000	$4,689,000	$4,974,000	$4,706,000	$17,086,000	$18,594,000	$22,705,000
Net income per share b basic (in Dollars per share)	$0.36	$0.34	$0.33	$0.35	$0.34	$0.38	$0.40	$0.38	$1.38	$1.51	$1.86
Net income per share b diluted (in Dollars per share)	$0.35	$0.34	$0.33	$0.34	$0.34	$0.38	$0.40	$0.38