Civista Bancshares (CIVB) 10-Q 31 Oct 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Oct. 29, 2013
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-13	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'
Entity Registrant Name	'FIRST CITIZENS BANC CORP /OH	'
Entity Central Index Key	'0000944745	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Smaller Reporting Company	'
Entity Common Stock, Shares Outstanding	'	7,707,917

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
ASSETS	'	'
Cash and due from financial institutions	$50,093	$46,131
Securities available for sale	200,356	203,961
Loans held for sale	4,891	1,873
Loans, net of allowance of $17,297 and $19,742	802,274	795,811
Other securities	15,433	15,567
Premises and equipment, net	16,563	17,166
Accrued interest receivable	4,540	3,709
Goodwill	21,720	21,720
Other intangibles	2,503	3,139
Bank owned life insurance	19,013	18,590
Other assets	10,401	9,304
Total assets	1,147,787	1,136,971
Deposits	'	'
Noninterest-bearing	220,804	202,416
Interest-bearing	721,654	723,973
Total deposits	942,458	926,389
Federal Home Loan Bank advances	37,735	40,261
Securities sold under agreements to repurchase	20,810	23,219
Subordinated debentures	29,427	29,427
Accrued expenses and other liabilities	14,441	13,695
Total liabilities	1,044,871	1,032,991
SHAREHOLDERS' EQUITY	'	'
Preferred shares, no par value, 200,000 shares authorized, 23,184 shares issued	23,184	23,184
Common shares, no par value, 20,000,000 shares authorized, 8,455,881 shares issued	114,365	114,365
Accumulated deficit	-11,268	-14,687
Treasury shares, 747,964 shares at cost	-17,235	-17,235
Accumulated other comprehensive loss	-6,130	-1,647
Total shareholders' equity	102,916	103,980
Total liabilities and shareholders' equity	$1,147,787	$1,136,971

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Statement Of Financial Position [Abstract]	'	'
Allowance, loans	$17,297	$19,742
Preferred shares, par value	'	'
Preferred shares, shares authorized	200,000	200,000
Preferred shares, shares issued	23,184	23,184
Common shares, par value	'	'
Common shares, shares authorized	20,000,000	20,000,000
Common shares, shares issued	8,455,881	8,455,881
Treasury shares, shares	747,964	747,964

Consolidated_Statements_of_Inc

Consolidated Statements of Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Interest and dividend income	'	'	'	'
Loans, including fees	$9,621	$9,901	$28,871	$30,338
Taxable securities	901	1,120	2,826	3,608
Tax-exempt securities	579	490	1,637	1,376
Federal funds sold and other	26	18	104	83
Total interest income	11,127	11,529	33,438	35,405
Interest expense	'	'	'	'
Deposits	674	894	2,134	2,955
Federal Home Loan Bank advances	339	394	1,029	1,181
Subordinated debentures	192	208	575	635
Other	5	5	16	15
Total interest expense	1,210	1,501	3,754	4,786
Net interest income	9,917	10,028	29,684	30,619
Provision for loan losses	300	1,700	1,100	5,565
Net interest income after provision for loan losses	9,617	8,328	28,584	25,054
Noninterest income	'	'	'	'
Service charges	1,088	1,108	3,120	3,243
Net gain on sale of securities	80	'	138	40
ATM fees	523	440	1,494	1,323
Trust fees	735	527	1,963	1,596
Bank owned life insurance	132	151	423	476
Computer center data processing fees	57	60	182	202
Other	462	414	1,803	1,580
Total noninterest income	3,077	2,700	9,123	8,460
Noninterest expense	'	'	'	'
Salaries, wages and benefits	5,753	5,207	16,839	15,603
Net occupancy expense	522	543	1,685	1,614
Equipment expense	291	293	859	897
Contracted data processing	265	246	790	705
FDIC assessment	233	212	779	714
State franchise tax	319	252	883	756
Professional services	869	676	2,303	2,080
Amortization of intangible assets	212	232	636	742
ATM expense	167	121	483	405
Marketing	192	193	577	581
Other operating expenses	1,922	1,239	5,463	4,775
Total noninterest expense	10,745	9,214	31,297	28,872
Income before taxes	1,949	1,814	6,410	4,642
Income tax expense	383	430	1,274	1,029
Net Income	1,566	1,384	5,136	3,613
Preferred stock dividends and discount accretion	289	316	869	903
Net income available to common shareholders	$1,277	$1,068	$4,267	$2,710
Earnings per common share, basic and diluted	$0.17	$0.14	$0.55	$0.35
Wtd avg common shares, basic and diluted	7,707,917	7,707,917	7,707,917	7,707,917

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement Of Income And Comprehensive Income [Abstract]	'	'	'	'
Net income	$1,566	$1,384	$5,136	$3,613
Other comprehensive income (loss):	'	'	'	'
Unrealized holding gains (loss) on available for sale securities	-886	758	-7,172	1,375
Tax effect of unrealized holdings gains (loss) on available for sale securities	301	-259	2,438	-468
Reclassification adjustment for gain recognized in income	-80	'	-138	-40
Tax effect of reclassification adjustment for gain recognized in income	27	'	47	14
Pension liability adjustment	180	90	518	270
Tax effect of pension liability adjustment	-61	-31	-176	-92
Total other comprehensive income (loss)	-519	558	-4,483	1,059
Comprehensive income	$1,047	$1,942	$653	$4,672

Condensed_Consolidated_Stateme

Condensed Consolidated Statement of Shareholders' Equity (USD $)	Total	Preferred Shares [Member]	Common Shares [Member]	Accumulated Deficit [Member]	Treasury Shares [Member]	Accumulated Other Comprehensive Loss [Member]
In Thousands, except Share data
Balance at Dec. 31, 2012	$103,980	$23,184	$114,365	($14,687)	($17,235)	($1,647)
Balance, shares at Dec. 31, 2012	'	23,184	7,707,917	'	'	'
Net income	5,136	'	'	5,136	'	'
Other comprehensive loss	-4,483	'	'	'	'	-4,483
Cash dividends ($.11 per share)	-848	'	'	-848	'	'
Preferred stock dividend	-869	'	'	-869	'	'
Balance at Sep. 30, 2013	$102,916	$23,184	$114,365	($11,268)	($17,235)	($6,130)
Balance, shares at Sep. 30, 2013	'	23,184	7,707,917	'	'	'

Condensed_Consolidated_Stateme1

Condensed Consolidated Statement of Shareholders' Equity (Parenthetical) (USD $)	9 Months Ended
	Sep. 30, 2013
Cash dividends per share	$0.11
Accumulated Deficit [Member]	'
Cash dividends per share	$0.11

Condensed_Consolidated_Stateme2

Condensed Consolidated Statement of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Statement Of Cash Flows [Abstract]	'	'
Net cash from operating activities	$6,784	$12,473
Cash flows used for investing activities	'	'
Maturities and calls of securities, available-for-sale	41,605	51,115
Purchases of securities, available-for-sale	-55,140	-69,991
Sale of securities available for sale	8,686	12,982
Redemption of FRB stock	134	'
Purchases of FRB stock	'	-185
Net loan originations	-7,832	-23,346
Proceeds from sale of OREO properties	635	1,048
Proceeds from sale of premises and equipment	130	5
Purchases of office premises and equipment	-457	-702
Net cash used by investing activities	-12,239	-29,074
Cash flows provided by financing activities	'	'
Repayment of FHLB borrowings	-26	-25
Maturity of long-term FHLB advances	-2,500	-10,000
Net change in deposits	16,069	13,991
Net change in securities sold under agreements to repurchase	-2,409	1,496
Repurchase common stock warrant from U. S. Treasury	'	-564
Cash dividends paid on common shares and preferred shares	-1,717	-1,563
Net cash provided by financing activities	9,417	3,335
Net change in cash and due from financial institutions	3,962	-13,266
Cash and cash equivalents at beginning of period	46,131	52,127
Cash and cash equivalents at end of period	50,093	38,861
Cash paid during the period for:	'	'
Interest	3,780	4,812
Income taxes	1,010	'
Supplemental cash flow information:	'	'
Transfer of loans from portfolio to OREO	202	289
Transfer of loans from portfolio to Held For Sale	$4,756	'

Consolidated_Financial_Stateme

Consolidated Financial Statements	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Consolidated Financial Statements	'
	(1) Consolidated Financial Statements
	Nature of Operations and Principles of Consolidation: The Consolidated Financial Statements include the accounts of First Citizens Banc Corp (FCBC) and its wholly-owned subsidiaries: The Citizens Banking Company (Citizens), First Citizens Insurance Agency, Inc., Water Street Properties, Inc. (Water St.) and FC Refund Solutions, Inc (FCRS). FCRS was formed to facilitate payment of individual state and federal income tax refunds. First Citizens Capital LLC (FCC) is wholly-owned by Citizens and holds inter-company debt. The operations of FCC are located in Wilmington, Delaware. First Citizens Investments, Inc. (FCI) is wholly-owned by Citizens and holds and manages Citizens’ securities portfolio. The operations of FCI are located in Wilmington, Delaware. The above companies together are referred to as the “Corporation.” Intercompany balances and transactions are eliminated in consolidation.
	The consolidated financial statements have been prepared by the Corporation without audit. In the opinion of management, all adjustments (which include only normal recurring adjustments) necessary to present fairly the Corporation’s financial position as of September 30, 2013 and its results of operations and changes in cash flows for the periods ended September 30, 2013 and 2012 have been made. The accompanying Consolidated Financial Statements have been prepared in accordance with instructions of Form 10-Q, and therefore certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States of America have been omitted. The results of operations for the period ended September 30, 2013 are not necessarily indicative of the operating results for the full year. Reference is made to the accounting policies of the Corporation described in the notes to the financial statements contained in the Corporation’s 2012 annual report. The Corporation has consistently followed these policies in preparing this Form 10-Q.
	The Corporation provides financial services through its offices in the Ohio counties of Erie, Crawford, Champaign, Franklin, Logan, Madison, Summit, Huron, Ottawa, and Richland. Its primary deposit products are checking, savings, and term certificate accounts, and its primary lending products are residential mortgage, commercial, and installment loans. Substantially all loans are secured by specific items of collateral including business assets, consumer assets and commercial and residential real estate. Commercial loans are expected to be repaid from cash flow from operations of businesses. There are no significant concentrations of loans to any one industry or customer. However, the customers’ ability to repay their loans is dependent on the real estate and general economic conditions in the area. Other financial instruments that potentially represent concentrations of credit risk include deposit accounts in other financial institutions and Federal Funds sold. First Citizens Insurance Agency, Inc. was formed to allow the Corporation to participate in commission revenue generated through its third party insurance agreement. Insurance commission revenue was less than 1.0% of total revenue through September 30, 2013. Water St. revenue was less than 1.0% of total revenue through September 30, 2013. Management considers the Corporation to operate primarily in one reportable segment, banking.

Significant_Accounting_Policie

Significant Accounting Policies	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Significant Accounting Policies	'
	(2) Significant Accounting Policies
	Use of Estimates: To prepare financial statements in conformity with accounting principles generally accepted in the United States of America, management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in financial statements and the disclosures provided, and future results could differ. The allowance for loan losses, impairment of goodwill, fair values of financial instruments, deferred taxes and pension obligations are particularly subject to change.
	Income Taxes: Income tax expense is based on the effective tax rate expected to be applicable for the entire year. Income tax expense is the total of the current year income tax due or refundable and the change in deferred tax assets and liabilities. Deferred tax assets and liabilities are the expected future tax amounts for the temporary differences between carrying amounts and tax basis of assets and liabilities, computed using enacted tax rates. A valuation allowance, if needed, reduces deferred tax assets to the amount expected to be realized.
	Reclassifications: Some items in the prior year financial statements were reclassified to conform to the current presentation.
	Effect of Newly Issued but Not Yet Effective Accounting Standards:
	In February 2013, the FASB issued ASU 2013-04, Liabilities (Topic 405): Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation Is Fixed at the Reporting Date. The objective of the amendments in this Update is to provide guidance for the recognition, measurement, and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of the obligation within the scope of this guidance is fixed at the reporting date, except for obligations addressed within existing guidance in U.S. generally accepted accounting principles (GAAP). Examples of obligations within the scope of this Update include debt arrangements, other contractual obligations, and settled litigation and judicial rulings. U.S. GAAP does not include specific guidance on accounting for such obligations with joint and several liability, which has resulted in diversity in practice. Some entities record the entire amount under the joint and several liability arrangements on the basis of the concept of a liability and the guidance that must be met to extinguish a liability. Other entities record less than the total amount of the obligation, such as an amount allocated, an amount corresponding to the proceeds received, or the portion of the amount the entity agreed to pay among its co-obligors, on the basis of the guidance for contingent liabilities. The amendments in this Update are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. Adoption of this Update is not expected to have a significant impact on the Corporation’s financial statements.
	In July 2013, the FASB issued ASU 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. This Update applies to all entities that have unrecognized tax benefits when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists at the reporting date. 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 tax law of 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. The assessment of whether a deferred tax asset is available is based on the unrecognized tax benefit and deferred tax asset that exist at the reporting date and should be made presuming disallowance of the tax position at the reporting date. The amendments in this Update are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. Management is currently investigating the potential impact of this Update to the Corporation’s financial statements.

Securities

Securities	9 Months Ended
	Sep. 30, 2013
Investments Debt And Equity Securities [Abstract]	'
Securities	'
	(3) Securities
	The amortized cost and fair market value of available for sale securities and the related gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) were as follows:
		Amortized		Gross			Gross			Fair Value
		Cost		Unrealized			Unrealized
				Gains			Losses
	September 30, 2013
	U.S. Treasury securities and obligations of U.S. government agencies	$	54,494	$	120		$	(650	)	$	53,964
	Obligations of states and political subdivisions		80,048		2,907			(1,480	)		81,475
	Mortgage-backed securities in government sponsored entities		63,779		1,152			(447	)		64,484
	Total debt securities		198,321		4,179			(2,577	)		199,923
	Equity securities in financial institutions		481		—			(48	)		433
	Total	$	198,802	$	4,179		$	(2,625	)	$	200,356
		Amortized		Gross			Gross			Fair Value
		Cost		Unrealized			Unrealized
				Gains			Losses
	December 31, 2012
	U.S. Treasury securities and obligations of U.S. government agencies	$	53,919	$	375		$	(8	)	$	54,286
	Obligations of states and political subdivisions		72,884		6,946			(24	)		79,806
	Mortgage-backed securities in government sponsored entities		67,814		1,854			(233	)		69,435
	Total debt securities		194,617		9,175			(265	)		203,527
	Equity securities in financial institutions		481		—			(47	)		434
	Total	$	195,098	$	9,175		$	(312	)	$	203,961
	The fair value of securities at September 30, 2013, by contractual maturity, is shown below. Actual maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations. Securities not due at a single maturity date, primarily mortgage-backed securities and equity securities, are shown separately.
		Amortized Cost		Fair Value
	Available for sale
	Due in one year or less	$	6,450	$	6,478
	Due after one year through five years		21,276		21,110
	Due after five years through ten years		32,826		33,144
	Due after ten years		73,990		74,707
	Mortgage-backed securities		63,779		64,484
	Equity securities		481		433
	Total securities available for sale	$	198,802	$	200,356
	Proceeds from sales of securities, gross realized gains and gross realized losses were as follows.
		Three months ended					Nine months ended
		September 30,					September 30,
		2013		2012			2013			2012
	Sale proceeds	$	927	$	—		$	8,686		$	12,982
	Gross realized gains		—		—			144			99
	Gross realized losses		—		—			89			59
	Gains from securities called or settled by the issuer		80		—			83			—
	Securities were pledged to secure public deposits, other deposits and liabilities as required by law. The carrying value of pledged securities was approximately $150,873 and $147,204 as of September 30, 2013 and December 31, 2012, respectively.
	Securities with unrealized losses at September 30, 2013 and December 31, 2012 not recognized in income are as follows:
	September 30, 2013	12 Months or less					More than 12 months						Total
		Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
	Description of Securities	Value		Loss			Value			Loss			Value		Loss
	U.S. Treasury securities and obligations of U.S. government agencies	$	32,170	$	(650	)	$	—		$	—		$	32,170	$	(650	)
	Obligations of states and political subdivisions		25,519		(1,480	)		—			—			25,519		(1,480	)
	Mortgage-backed securities in gov’t sponsored entities		22,329		(441	)		349			(6	)		22,678		(447	)
	Equity securities		481		(48	)		—			—			481		(48	)
	Total temporarily impaired	$	80,499	$	(2,619	)	$	349		$	(6	)	$	80,848	$	(2,625	)
	December 31, 2012	12 Months or less					More than 12 months						Total
		Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
	Description of Securities	Value		Loss			Value			Loss			Value		Loss
	U.S. Treasury securities and obligations of U.S. government agencies	$	6,184	$	(8	)	$	—		$	—		$	6,184	$	(8	)
	Obligations of states and political subdivisions		1,440		(22	)		465			(2	)		1,905		(24	)
	Mortgage-backed securities in gov’t sponsored entities		7,907		(215	)		2,122			(18	)		10,029		(233	)
	Equity securities in financial institutions		434		(47	)		—			—			434		(47	)
	Total temporarily impaired	$	15,965	$	(292	)	$	2,587		$	(20	)	$	18,552	$	(312	)
	At September 30, 2013 there were seventy-four securities in the portfolio with unrealized losses mainly due to higher market rates when compared to the time of purchase. Unrealized losses on securities have not been recognized into income because the issuers’ securities are of high credit quality, management has the intent and ability to hold these securities for the foreseeable future, and the decline in fair value is largely due to market yields increasing across the municipal sector partly due to higher risk premiums associated with municipal insurers. The fair value is expected to recover as the securities approach their maturity date or reset date. The Corporation does not intend to sell until recovery and does not believe selling will be required before recovery.

Loans

Loans	9 Months Ended
	Sep. 30, 2013
Receivables [Abstract]	'
Loans	'
	(4) Loans
	Loan balances were as follows:
		September 30,			December 31,
		2013			2012
	Commercial and agriculture	$	105,830		$	100,661
	Commercial real estate		431,733			434,808
	Residential real estate		244,393			250,598
	Real estate construction		26,661			19,677
	Consumer and other		10,954			9,809
	Total loans		819,571			815,553
	Allowance for loan losses		(17,297	)		(19,742	)
	Net loans	$	802,274		$	795,811

Allowance_for_Loan_Losses

Allowance for Loan Losses	9 Months Ended
	Sep. 30, 2013
Text Block [Abstract]	'
Allowance for Loan Losses	'
	(5) Allowance for Loan Losses
	Management has an established methodology to determine the adequacy of the allowance for loan losses that assesses the risks and losses inherent in the loan portfolio. For purposes of determining the allowance for loan losses, the Corporation has segmented certain loans in the portfolio by product type. Historical loss percentages for each risk category are calculated and used as the basis for calculating loan loss allowance allocations. These historical loss percentages are calculated over a three-year period for all portfolio segments. Certain economic factors are also considered for trends which management uses to establish the directionality of changes to the unallocated portion of the reserve. The following economic factors are analyzed:
		•		Changes in lending policies and procedures
		•		Changes in experience and depth of lending and management staff
		•		Changes in quality of Citizens’ credit review system
		•		Changes in nature and volume of the loan portfolio
		•		Changes in past due, classified and nonaccrual loans and TDRs
		•		Changes in economic and business conditions
		•		Changes in competition or legal and regulatory requirements
		•		Changes in concentrations within the loan portfolio
		•		Changes in the underlying collateral for collateral dependent loans
	The total allowance reflects management’s estimate of loan losses inherent in the loan portfolio at the balance sheet date. The Corporation considers the allowance for loan losses of $17,297 adequate to cover loan losses inherent in the loan portfolio, at September 30, 2013. The following tables present, by portfolio segment, the changes in the allowance for loan losses and the loan balances outstanding for the periods ended September 30, 2013 and 2012, and December 31, 2012.
			Commercial			Commercial			Residential			Real Estate			Consumer			Unallocated			Total
			& Agriculture			Real Estate			Real Estate			Construction
	For the nine months ending September 30, 2013
	Allowance for loan losses:
	Beginning balance		$	2,811		$	10,139		$	5,780		$	349		$	246		$	417		$	19,742
	Charge-offs			(301	)		(1,266	)		(2,579	)		(136	)		(183	)		—			(4,465	)
	Recoveries			123			257			364			107			69			—			920
	Provision			418			(1,221	)		1,312			(160	)		27			724			1,100
	Ending Balance		$	3,051		$	7,909		$	4,877		$	160		$	159		$	1,141		$	17,297
	For the nine months ended September 30, 2013, the allowance for Commercial Real Estate loans was reduced not only by charge-offs, but also due to a decrease in both the loan balances outstanding and the specific reserve required for this type. The net result of these changes was represented as a decrease in the provision. The allowance for Real Estate Construction loans was reduced as a result of changes to specific reserves required and the historical charge-offs for this type. The result of these changes was represented as a decrease in the provision. The ending reserve balance for Residential Real Estate loans declined from the end of the previous year due to charge-offs during the period. Since these charged-off loans already had specific reserves assigned to them, we no longer need to carry as large a reserve for this segment. While we have seen improvement in asset quality, given the uncertainty in the economy, management determined that it was appropriate to maintain unallocated reserves at a higher level at this time.
			Commercial			Commercial			Residential			Real Estate			Consumer			Unallocated			Total
			& Agriculture			Real Estate			Real Estate			Construction
	For the nine months ending September 30, 2012
	Allowance for loan losses:
	Beginning balance		$	2,876		$	10,571		$	5,796		$	974		$	719		$	321		$	21,257
	Charge-offs			(610	)		(2,463	)		(2,803	)		(297	)		(174	)		—			(6,347	)
	Recoveries			280			371			208			104			51			—			1,014
	Provision			23			2,748			2,758			284			(343	)		95			5,565
	Ending Balance		$	2,569		$	11,227		$	5,959		$	1,065		$	253		$	416		$	21,489
	For the nine months ended September 30, 2012, the allowance for Consumer loans was reduced not only by charge-offs, but also due to decreases in the loan balances outstanding for this type. The result of this change was a reduction in the allowance and is represented as a decrease in the provision.
			Commercial			Commercial			Residential			Real Estate			Consumer			Unallocated			Total
			& Agriculture			Real Estate			Real Estate			Construction
	For the three months ending September 30, 2013
	Allowance for loan losses:
	Beginning balance		$	3,775		$	9,156		$	5,169		$	184		$	149		$	972		$	19,405
	Charge-offs			(210	)		(635	)		(1,558	)		(136	)		(61	)		—			(2,600	)
	Recoveries			62			34			63			1			32			—			192
	Provision			(576	)		(646	)		1,203			111			39			169			300
	Ending Balance		$	3,051		$	7,909		$	4,877		$	160		$	159		$	1,141		$	17,297
	For the three months ended September 30, 2013, the allowance for Commercial and Agriculture loans was reduced not only by charge-offs, but also due to a decrease in the loan balances outstanding and decreases in both the specific and general reserves required for this type. The allowance for Commercial Real Estate loans was reduced not only by charge-offs, but also due to a decrease in both the specific and general reserves required for this type. The result of these changes for each loan type was represented as a decrease in the provision. While we have seen improvement in asset quality, given the uncertainty in the economy, management determined that it was appropriate to maintain unallocated reserves at a higher level at this time.
			Commercial			Commercial			Residential			Real Estate			Consumer			Unallocated			Total
			& Agriculture			Real Estate			Real Estate			Construction
	For the three months ending September 30, 2012
	Allowance for loan losses:
	Beginning balance		$	2,537		$	11,701		$	6,379		$	1,095		$	262		$	(43	)	$	21,931
	Charge-offs			(192	)		(824	)		(1,334	)		(192	)		(49	)		—			(2,591	)
	Recoveries			180			196			47			(9	)		35			—			449
	Provision			44			154			867			171			5			459			1,700
	Ending Balance		$	2,569		$	11,227		$	5,959		$	1,065		$	253		$	416		$	21,489
	For the three months ended September 30, 2012, the allowance for each loan type was reduced by charge-offs, with no other adjustments through the provision needed for either a reduction in loan volume or charge-off history.
	September 30, 2013		Commercial			Commercial			Residential			Real Estate			Consumer			Unallocated			Total
			& Agriculture			Real Estate			Real Estate			Construction
	Allowance for loan losses:
	Ending balance:
	Individually evaluated for impairment		$	1,054		$	454		$	204		$	—		$	1		$	—		$	1,713
	Ending balance:
	Collectively evaluated for impairment		$	1,997		$	7,455		$	4,673		$	160		$	158		$	1,141		$	15,584
	Ending Balance		$	3,051		$	7,909		$	4,877		$	160		$	159		$	1,141		$	17,297
	Loan balances outstanding:
	Ending balance:
	Individually evaluated for impairment		$	3,920		$	9,813		$	4,025		$	—		$	21					$	17,779
Ending balance:
Collectively evaluated for impairment		$	101,910		$	421,920		$	240,368		$	26,661		$	10,933					$	801,792
Ending Balance		$	105,830		$	431,733		$	244,393		$	26,661		$	10,954					$	819,571
December 31, 2012		Commercial			Commercial			Residential			Real Estate			Consumer			Unallocated			Total
		& Agriculture			Real Estate			Real Estate			Construction
Allowance for loan losses:
Ending balance:
Individually evaluated for impairment		$	286		$	2,354		$	1,199		$	107		$	60		$	—		$	4,006
Ending balance:
Collectively evaluated for impairment		$	2,525		$	7,785		$	4,581		$	242		$	186		$	417		$	15,736
Ending Balance		$	2,811		$	10,139		$	5,780		$	349		$	246		$	417		$	19,742
Loan balances outstanding:
Ending balance:
Individually evaluated for impairment		$	5,420		$	13,941		$	6,127		$	541		$	61					$	26,090
Ending balance:
Collectively evaluated for impairment		$	95,241		$	420,867		$	244,471		$	19,136		$	9,748					$	789,463
Ending Balance		$	100,661		$	434,808		$	250,598		$	19,677		$	9,809					$	815,553
The following tables present credit exposures by internally assigned grades for the period ended September 30, 2013 and December 31, 2012. The grading analysis estimates the capability of the borrower to repay the contractual obligations of the loan agreements as scheduled or at all. Residential Real Estate loans with an internal credit risk grade include commercial loans that are secured by conventional 1-4 family residential properties. Real Estate Construction loans with an internal credit risk grade include commercial construction, land development and other land loans. Citizens’ internal credit risk grading system is based on experiences with similarly graded loans. Additionally, residential real estate, real estate construction or consumer loans that are directly related to a commercial borrower that has been downgraded may be downgraded as well.
Citizens’ internally assigned grades are as follows:
	•		Pass – loans which are protected by the current net worth and paying capacity of the obligor or by the value of the underlying collateral.
	•		Special Mention – loans where a potential weakness or risk exists, which could cause a more serious problem if not corrected.
	•		Substandard – loans that have a well-defined weakness based on objective evidence and are characterized by the distinct possibility that Citizens will sustain some loss if the deficiencies are not corrected.
	•		Doubtful – loans classified as doubtful have all the weaknesses inherent in a substandard asset. In addition, these weaknesses make collection or liquidation in full highly questionable and improbable, based on existing circumstances.
	•		Loss – loans classified as a loss are considered uncollectible, or of such value that continuance as an asset is not warranted.
	•		Unrated – Generally, consumer loans are not risk-graded, except when collateral is used for a business purpose.
September 30, 2013		Commercial			Commercial			Residential			Real Estate			Consumer			Total
		& Agriculture			Real Estate			Real Estate			Construction
Pass		$	97,258		$	406,253		$	95,677		$	22,295		$	2,289		$	623,772
Special Mention			2,804			7,714			996			21			—			11,535
Substandard			5,768			17,766			10,289			—			90			33,913
Doubtful			—			—			—			—			—			—
Ending Balance		$	105,830		$	431,733		$	106,962		$	22,316		$	2,379		$	669,220
December 31, 2012		Commercial			Commercial			Residential			Real Estate			Consumer			Total
		& Agriculture			Real Estate			Real Estate			Construction
Pass		$	90,159		$	397,657		$	89,896		$	16,594		$	994		$	595,300
Special Mention			1,653			6,371			1,944			352			—			10,320
Substandard			8,849			30,780			12,873			1,001			106			53,609
Doubtful			—			—			—			—			—			—
Ending Balance		$	100,661		$	434,808		$	104,713		$	17,947		$	1,100		$	659,229
The following tables present performing and nonperforming loans based solely on payment activity for the period ended September 30, 2013 and December 31, 2012 that have not been assigned an internal risk grade. Payment activity is reviewed by management on a monthly basis to determine how loans are performing. Loans are considered to be nonperforming when they become 90 days past due. Nonperforming loans also include certain loans that have been modified in Troubled Debt Restructurings (TDRs) where economic concessions have been granted to borrowers who have experienced or are expected to experience financial difficulties. These concessions typically result from Citizens’ loss mitigation activities and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance or other actions. Certain TDRs are classified as nonperforming at the time of restructure and may only be returned to performing status after considering the borrower’s sustained repayment performance for a reasonable period, generally six months.
30-Sep-13		Residential			Real Estate			Consumer			Total
		Real Estate			Construction
Performing		$	137,431		$	4,345		$	8,575		$	150,351
Nonperforming			—			—			—			—
Total		$	137,431		$	4,345		$	8,575		$	150,351
31-Dec-12		Residential			Real Estate			Consumer			Total
		Real Estate			Construction
Performing		$	145,879		$	1,730		$	8,696		$	156,305
Nonperforming			6			—			13			19
Total		$	145,885		$	1,730		$	8,709		$	156,324
The following tables includes an aging analysis of the recorded investment of past due loans outstanding as of September 30, 2013 and December 31, 2012.
September 30, 2013		30-59			60-89			90 Days or			Total Past			Current			Total Loans			Past Due
		Days			Days			Greater			Due									90 Days
		Past Due			Past Due															and
																				Accruing
Commericial & Agriculture		$	—		$	4		$	304		$	308		$	105,522		$	105,830		$	—
Commercial Real Estate			271			653			2,929			3,853			427,880			431,733			—
Residential Real Estate			733			393			5,412			6,538			237,855			244,393			—
Real Estate Construction			—			—			—			—			26,661			26,661			—
Consumer			60			8			25			93			10,861			10,954			—
Total		$	1,064		$	1,058		$	8,670		$	10,792		$	808,779		$	819,571		$	—
December 31, 2012		30-59			60-89			90 Days or			Total Past			Current			Total Loans			Past Due
		Days			Days			Greater			Due									90 Days
		Past Due			Past Due															and
																				Accruing
Commericial & Agriculture		$	31		$	72		$	553		$	656		$	100,005		$	100,661		$	—
Commercial Real Estate			1,000			533			6,794			8,327			426,481			434,808			80
Residential Real Estate			2,843			1,214			8,527			12,584			238,014			250,598			—
Real Estate Construction			43			—			416			459			19,218			19,677			—
Consumer			127			20			29			176			9,633			9,809			—
Total		$	4,044		$	1,839		$	16,319		$	22,202		$	793,351		$	815,553		$	80
Nonaccrual Loans: Loans are considered for nonaccrual status upon reaching 90 days delinquency, unless the loan is well secured and in the process of collection, although Citizens may be receiving partial payments of interest and partial repayments of principal on such loans. When a loan is placed on nonaccrual status, previously accrued but unpaid interest is deducted from interest income.
The following table presents loans on nonaccrual status as of September 30, 2013 and December 31, 2012.
		September 30, 2013			December 31, 2012
Commericial & Agriculture		$	1,599		$	2,869
Commercial Real Estate			9,562			16,250
Residential Real Estate			9,458			9,701
Real Estate Construction			—			958
Consumer			75			77
Total		$	20,694		$	29,855
Loan modifications that are considered TDRs completed during the nine month periods ended September 30, 2013 and September 30, 2012 were as follows:
		For the Nine-Month Period Ended									For the Nine-Month Period Ended
		September 30, 2013									September 30, 2012
		Number			Pre-			Post-			Number			Pre-			Post-
		of			Modification			Modification			of			Modification			Modification
		Contracts			Outstanding			Outstanding			Contracts			Outstanding			Outstanding
					Recorded			Recorded						Recorded			Recorded
					Investment			Investment						Investment			Investment
Commericial & Agriculture			—		$	—		$	—			6		$	983		$	976
Commercial Real Estate			2			547			547			3			1,206			1,206
Residential Real Estate			—			—			—			21			1,250			1,171
Real Estate Construction			—			—			—			—			—			—
Consumer and Other			—			—			—			5			66			66
Total Loan Modifications			2		$	547		$	547			35		$	3,505		$	3,419
Loan modifications that are considered TDRs completed during the quarter ended September 30, 2013 and September 30, 2012 were as follows:
		For the Three-Month Period Ended									For the Three-Month Period Ended
		September 30, 2013									September 30, 2012
		Number			Pre-			Post-			Number			Pre-			Post-
		of			Modification			Modification			of			Modification			Modification
		Contracts			Outstanding			Outstanding			Contracts			Outstanding			Outstanding
					Recorded			Recorded						Recorded			Recorded
					Investment			Investment						Investment			Investment
Commericial & Agriculture			—		$	—		$	—			2		$	197		$	497
Commercial Real Estate			1			422			422			—			—			—
Residential Real Estate			—			—			—			1			385			385
Real Estate Construction			—			—			—			—			—			—
Consumer and Other			—			—			—			1			19			19
Total Loan Modifications			1		$	422		$	422			4		$	601		$	901
Recidivism, or the borrower defaulting on its obligation pursuant to a modified loan, results in the loan once again becoming a non-accrual loan. Recidivism occurs at a notably higher rate than defaults on new origination loans, so modified loans present a higher risk of loss than do new origination loans.
During the nine-month period ended September 30, 2013, there were two defaults, totaling $66, on loans which were modified and considered TDRs during the twelve months previous to the nine-month period ending September 30, 2013.
During the nine-month period ended September 30, 2012, there were no defaults on any loans which were modified and considered TDRs during the twelve months previous to the nine-month period ending September 30, 2012.
During the three-month period ended September 30, 2013, there were no defaults on any loans which were modified and considered TDRs during the twelve months previous to the three-month period ending September 30, 2013.
During the three-month period ended September 30, 2012, there were no defaults on any loans which were modified and considered TDRs during the twelve months previous to the three-month period ending September 30, 2012.
Impaired Loans: Larger (greater than $500) Commercial loans and Commercial Real Estate loans, many of which are 60 days or more past due, are tested for impairment. These loans are analyzed to determine if it is probable that all amounts will not be collected according to the contractual terms of the loan agreement. If management determines that the value of the impaired loan is less than the recorded investment in the loan (net of previous charge-offs, deferred loan fees or costs and unamortized premium or discount), impairment is recognized through an allowance estimate or a charge-off to the allowance. Additionally, if a Residential Real Estate loan or Consumer loan is part of a relationship with a Commercial loan or Commercial Real Estate loan that is impaired, then the Residential Real Estate loan or Consumer loan is considered impaired as well.
The following tables include the recorded investment and unpaid principal balances for impaired financing receivables with the associated allowance amount, if applicable, as of September 30, 2013 and December 31, 2012.
		September 30, 2013									December 31, 2012
		Recorded			Unpaid			Related			Recorded			Unpaid			Related
		Investment			Principal			Allowance			Investment			Principal			Allowance
					Balance									Balance
With no related allowance recorded:
Commercial & Agriculture		$	1,206		$	1,326		$	—		$	5,053		$	5,226		$	—
Commercial Real Estate			5,341			6,260			—			5,446			8,114			—
Residential Real Estate			3,049			5,108			—			2,566			5,346			—
Real Estate Construction			—			—			—			—			521			—
Consumer and Other			—			—			—			1			1			—
Total			9,596			12,694			—			13,066			19,208			—
With an allowance recorded:
Commercial & Agriculture			2,714			3,031			1,054			367			385			286
Commercial Real Estate			4,472			4,755			454			8,495			8,681			2,354
Residential Real Estate			976			1,003			204			3,561			4,554			1,199
Real Estate Construction			—			—			—			541			547			107
Consumer and Other			21			21			1			60			60			60
Total			8,183			8,810			1,713			13,024			14,227			4,006
Total:
Commercial & Agriculture			3,920			4,357			1,054			5,420			5,611			286
Commercial Real Estate			9,813			11,015			454			13,941			16,795			2,354
Residential Real Estate			4,025			6,111			204			6,127			9,900			1,199
Real Estate Construction			—			—			—			541			1,068			107
Consumer and Other			21			21			1			61			61			60
Total		$	17,779		$	21,504		$	1,713		$	26,090		$	33,435		$	4,006
The following tables include the average recorded investment and interest income recognized for impaired financing receivables for the three-month and nine-month periods ended September 30, 2013 and 2012.
For the nine months ended:		September 30, 2013						September 30, 2012
		Average			Interest			Average			Interest
		Recorded			Income			Recorded			Income
		Investment			Recognized			Investment			Recognized
Commercial & Agriculture		$	4,984		$	156		$	4,631		$	205
Commercial Real Estate			12,328			438			17,060			995
Residential Real Estate			5,324			287			4,628			391
Real Estate Construction			377			—			531			11
Consumer and Other			35			—			28			1
Total		$	23,048		$	881		$	26,878		$	1,603
For the three months ended:		September 30, 2013						September 30, 2012
		Average			Interest			Average			Interest
		Recorded			Income			Recorded			Income
		Investment			Recognized			Investment			Recognized
Commercial & Agriculture		$	4,504		$	25		$	5,366		$	26
Commercial Real Estate			11,237			29			16,448			329
Residential Real Estate			4,773			18			5,227			145
Real Estate Construction			240			(11	)		608			11
Consumer and Other			21			—			54			1
Total		$	20,775		$	61		$	27,703		$	512

Other_Comprehensive_Income

Other Comprehensive Income	9 Months Ended
	Sep. 30, 2013
Equity [Abstract]	'
Other Comprehensive Income	'
	(6) Other Comprehensive Income
	The following table presents the changes in each component of accumulated other comprehensive loss, net of tax, for the three-month and nine-month periods ended September 30, 2013:
			For the Three-Month Period Ended									For the Nine-Month Period Ended
			September 30, 2013									September 30, 2013
			Unrealized			Defined			Total			Unrealized			Defined			Total
			Gains and			Benefit						Gains and			Benefit
			Losses on			Pension						Losses on			Pension
			Available-for-			Items						Available-for-			Items
			Sale									Sale
			Securities									Securities
	Beginning balance		$	1,662		$	(7,273	)	$	(5,611	)	$	5,849		$	(7,496	)	$	(1,647	)
	Other comprehensive loss before reclassifications			(585	)		—			(585	)		(4,734	)		—			(4,734	)
	Amounts reclassified from accumulated other comprehensive loss			(53	)		119			66			(91	)		342			251
	Net current-period other comprehensive income (loss)			(638	)		119			(519	)		(4,825	)		342			(4,483	)
	Ending balance		$	1,024		$	(7,154	)	$	(6,130	)	$	1,024		$	(7,154	)	$	(6,130	)
	Amounts in parentheses indicate debits.
	The following table presents the amounts reclassified out of each component of accumulated other comprehensive loss for the three-month and nine-month periods ended September 30, 2013:
			Amout Reclassified from
			Accumulated Other
			Comprehensive Loss (a)
	Details about Accumulated Other		For the three			For the nine			Affected Line Item in the Statement
	Comprehensive Income (Loss) Components		months ended			months ended			Where Net Income is Presented
			September 30,			September 30,
			2013			2013
	Unrealized gains and losses on available-for-sale securities		$	80		$	138		Net gain on sale of securities
				80			138		Total before tax
	Tax effect			(27	)		(47	)	Income tax expense
				53			91		Net of tax
	Amortization of defined benefit pension items
	Actuarial gains/(losses)			(180	)(b)		(518	)(b)	Salaries, wages and benefits
				(180	)		(518	)	Total before tax
	Tax effect			61			176		Income tax expense
				(119	)		(342	)	Net of tax
	Total reclassifications for the period		$	(66	)	$	(251	)	Net of tax
	(a)	Amounts in parentheses indicate debits to profit/loss.
	(b)	These accumulated other comprehensive income components are included in the computation of net periodic pension cost.

Earnings_per_Common_Share

Earnings per Common Share	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Earnings per Common Share	'
	(7) Earnings per Common Share
	Basic earnings per share are net income available to common shareholders divided by the weighted average number of common shares outstanding during the period. Diluted earnings per common share include the dilutive effect, if any, of additional potential common shares issuable under stock options, computed using the treasury stock method.
		Three months ended				Nine months ended
		September 30,				September 30,
		2013		2012		2013		2012
	Basic
	Net income	$	1,566	$	1,384	$	5,136	$	3,613
	Preferred stock dividends and discount accretion		289		316		869		903
	Net income available to common shareholders	$	1,277	$	1,068	$	4,267	$	2,710
	Weighted average common shares outstanding		7,707,917		7,707,917		7,707,917		7,707,917
	Basic earnings per common share	$	0.17	$	0.14	$	0.55	$	0.35
	Diluted
	Net income	$	1,566	$	1,384	$	5,136	$	3,613
	Preferred stock dividends and discount accretion		289		316		869		903
	Net income available to common shareholders	$	1,277	$	1,068	$	4,267	$	2,710
	Weighted average common shares outstanding for basic earnings per common share		7,707,917		7,707,917		7,707,917		7,707,917
	Add: Dilutive effects of assumed exercises of stock options and warrants		—		—		—		—
	Average shares and dilutive potential common shares outstanding		7,707,917		7,707,917		7,707,917		7,707,917
	Diluted earnings per common share	$	0.17	$	0.14	$	0.55	$	0.35
	Stock options for 10,000 common shares that have an exercise price of $35.00 were not considered in computing diluted earnings per common share for the three and nine-month periods ended September 30, 2012 because they were anti-dilutive.
	There were no dilutive or anti-dilutive securities at September 30, 2013.

Commitments_Contingencies_and_

Commitments, Contingencies and Off-Balance Sheet Risk	9 Months Ended
	Sep. 30, 2013
Commitments And Contingencies Disclosure [Abstract]	'
Commitments, Contingencies and Off-Balance Sheet Risk	'
	(8) Commitments, Contingencies and Off-Balance Sheet Risk
	Some financial instruments, such as loan commitments, credit lines, letters of credit and overdraft protection, are issued to meet customers’ financing needs. These are agreements to provide credit or to support the credit of others, as long as the conditions established in the contract are met, and usually have expiration dates. Commitments may expire without being used. Off-balance-sheet risk of credit loss exists up to the face amount of these instruments, although material losses are not anticipated. The same credit policies are used to make such commitments as are used for loans, including obtaining collateral at exercise of commitment. The contractual amounts of financial instruments with off-balance-sheet risk were as follows for September 30, 2013 and December 31, 2012:
		Contract Amount
		September 30, 2013				December 31, 2012
		Fixed		Variable		Fixed		Variable
		Rate		Rate		Rate		Rate
	Commitment to extend credit:
	Lines of credit and construction loans	$	6,618	$	159,489	$	9,378	$	118,182
	Overdraft protection		31		20,629		51		19,726
	Letters of credit		200		2,236		294		396
		$	6,849	$	182,354	$	9,723	$	138,304
	Commitments to make loans are generally made for a period of one year or less. Fixed rate loan commitments included in the table above had interest rates ranging from 3.05% to 13.75% at September 30, 2013 and December 31, 2012, respectively. Maturities extend up to 30 years.
	Citizens is required to maintain certain reserve balances on hand in accordance with the Federal Reserve Board requirements. The average reserve balance maintained in accordance with such requirements was $1,753 on September 30, 2013 and $1,217 on December 31, 2012.

Pension_Information

Pension Information	9 Months Ended
	Sep. 30, 2013
Compensation And Retirement Disclosure [Abstract]	'
Pension Information	'
	(9) Pension Information
	Net periodic pension expense was as follows:
		Three months ended						Nine months ended
		September 30,						September 30,
		2013			2012			2013			2012
	Service cost	$	310		$	235		$	893		$	704
	Interest cost		228			229			656			686
	Expected return on plan assets		(249	)		(215	)		(716	)		(644	)
	Other components		180			90			518			270
	Net periodic pension cost	$	469		$	339		$	1,351		$	1,016
	The total amount of contributions expected to be paid by the Corporation in 2013 is $1,900, compared to $1,510 in 2012.

Stock_Options

Stock Options	9 Months Ended
	Sep. 30, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Stock Options	'
	(10) Stock Options
	The Corporation’s Stock Option and Stock Appreciation Rights Plan (“Stock Option Plan”) authorized the Corporation to grant options to buy up to an aggregate of 225,000 common shares of the Corporation to directors, officers and employees of the Corporation. The exercise price of stock options granted under the Stock Option Plan was based on the market price of the Corporation’s common shares at the date of grant, the maximum option term was ten years, and options normally vested after three years. The Stock Option Plan expired in 2010, and no further stock options or other awards may be granted by the Corporation under the Stock Option Plan.
	A summary of the activity in the plan is as follows:
		Nine months ended					Nine months ended
		September 30, 2013					September 30, 2012
		Total options					Total options
		outstanding					outstanding
					Weighted					Weighted
					Average					Average
					Price					Price
		Shares			Per Share		Shares			Per Share
	Outstanding at beginning of year		10,000		$	35		29,500		$	25.42
	Granted		—			—		—			—
	Exercised		—			—		—			—
	Forfeited		—			—		—			—
	Expired		(10,000	)		35		(19,500	)		20.5
	Options outstanding, end of period		—		$	—		10,000		$	35
	Options exercisable, end of period		—		$	—		10,000		$	35
	At September 30, 2013, all previously outstanding stock options had expired unexercised.
	The intrinsic value for stock options is calculated based on the exercise price of the underlying awards and the market price of our common shares as of the reporting date. As of September 30, 2012, there were no options that had intrinsic value.

Fair_Value_Measurement

Fair Value Measurement	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Measurement	'
	(11) Fair Value Measurement
	The Corporation uses a fair value hierarchy to measure fair value. The Corporation uses a fair value hierarchy to measure fair value. This hierarchy describes three levels of inputs that may be used to measure fair value. Level 1: Quoted prices for identical assets in active markets that are identifiable on the measurement date; Level 2: Significant other observable inputs, such as quoted prices for similar assets, quoted prices in markets that are not active and other inputs that are observable or can be corroborated by observable market data; Level 3: Significant unobservable inputs that reflect the Corporation’s own view about the assumptions that market participants would use in pricing an asset.
	Debt securities: The fair values of securities available for sale are determined by matrix pricing, which is a mathematical technique widely used in the industry to value debt securities without relying exclusively on quoted prices for the specific securities, but rather by relying on the securities’ relationship to other benchmark quoted securities (Level 2 inputs). Additionally, at December 31, 2012, management used significant unobservable inputs to determine the fair value of one security (Level 3 inputs). These inputs include appraised values of the underlying collateral and estimated costs to sell the collateral. The value of the collateral has been discounted to represent the value in a distressed sale situation.
	Equity securities: The Corporation’s equity securities are not actively traded in an open market. The fair values of these equity securities available for sale is determined by using market data inputs for similar securities that are observable (Level 2 inputs).
	Impaired loans: The fair values of impaired loans are determined using the fair values of collateral for collateral dependent loans, or discounted cash flows. The Corporation uses independent appraisals, discounted cash flow models and other available data to estimate the fair value of collateral (Level 3 inputs).
	Other real estate owned: The fair value of other real estate owned is determined using the fair value of collateral. The Corporation uses appraisals and other available data to estimate the fair value of collateral (Level 3 inputs). The appraised values are discounted to represent an estimated value in a distressed sale. Additionally, estimated costs to sell the property are used to further adjust the value.
	Assets measured at fair value are summarized below.
		Fair Value Measurements at
		September 30, 2013 Using:
		(Level 1)			(Level 2)			(Level 3)
	Assets:
	Assets measured at fair value on a recurring basis:
	U.S. Treasury securities and obligations of U.S. Government agencies	$	—		$	53,964		$	—
	Obligations of states and political subdivisions		—			81,475			—
	Mortgage-backed securities in government sponsored entities		—			64,484			—
	Equity securities in financial institutions		—			433			—
	Assets measured at fair value on a nonrecurring basis:
	Impaired loans	$	—		$	—		$	16,066
	Other real estate owned		—			—			158
		Fair Value Measurements at
		December 31, 2012 Using:
		(Level 1)			(Level 2)			(Level 3)
	Assets:
	Assets measured at fair value on a recurring basis:
	U.S. Treasury securities and obligations of U.S. Government agencies	$	—		$	54,286		$	—
	Obligations of states and political subdivisions		—			79,338			468
	Mortgage-backed securities in government sponsored entities		—			69,435			—
	Equity securities in financial institutions		—			434			—
	Assets measured at fair value on a nonrecurring basis:
	Impaired loans	$	—		$	—		$	22,084
	Other real estate owned		—			—			471
	The following table presents quantitative information about the Level 3 significant unobservable inputs for assets and liabilities measured at fair value on a nonrecurring basis at September 30, 2013.
		Quantitative Information about Level 3 Fair Value Measurements
	September 30, 2013	Fair Value			Valuation Technique		Unobservable Input	Range
		Estimate
	Impaired loans	$	16,066		Appraisal of collateral		Appraisal adjustments	10% - 30%
							Liquidation expense	0% - 10%
							Holding period	0 - 30 months
					Discounted cash flows		Discount rates	3.8% - 8.3%
	Other real estate owned	$	158		Appraisal of collateral		Appraisal adjustments	10% - 30%
							Liquidation expense	0% - 10%
	The following table presents quantitative information about the Level 3 significant unobservable inputs for assets and liabilities measured at fair value on a nonrecurring basis at December 31, 2012.
		Quantitative Information about Level 3 Fair Value Measurements
	December 31, 2012	Fair Value			Valuation Technique		Unobservable Input	Range
		Estimate
	Obligations of states and political subdivisions	$	468		Appraisal of collateral		Appraisal adjustments	20% - 30%
							Liquidation expense	8% - 12%
	Impaired loans	$	22,084		Appraisal of collateral		Appraisal adjustments	10% - 30%
							Liquidation expense	0% - 10%
							Holding period	0 - 30 months
					Discounted cash flows		Discount rates	2% - 8.5%
	Other real estate owned	$	471		Appraisal of collateral		Appraisal adjustments	10% - 30%
							Liquidation expense	0% - 10%
	The following table presents the changes in the Level 3 fair-value category for the period ended September 30, 2013. The Corporation classifies financial instruments in Level 3 of the fair value hierarchy when there is reliance on at least one significant unobservable input to the valuation model. In addition to the unobservable inputs, the valuation models for Level 3 financial instruments typically also rely on a number of inputs that are readily observable, either directly or indirectly.
	Securities available for sale
	Beginning balance January 1, 2013	$	468
	Settlements		(468	)
	Ending balance September 30, 2013	$	—
	The carrying amount and fair values of financial instruments are as follows.
	September 30, 2013	Carrying			Total Fair			Level 1		Level 2		Level 3
		Amount			Value
	Financial Assets:
	Cash and due from financial institutions	$	50,093		$	50,093		$	50,093	$	—	$	—
Securities available for sale		200,356			200,356			—		200,356		—
Other securities		15,433			15,433			15,433		—		—
Loans, available for sale		4,891			4,891			4,891		—		—
Loans, net of allowance for loan losses		802,274			821,717			—		—		821,717
Bank owned life insurance		19,013			19,013			19,013		—		—
Accrued interest receivable		4,540			4,540			4,540		—		—
Mortgage servicing rights		454			454			—		—		454
Financial Liabilities:
Nonmaturing deposits		702,215			702,215			702,215		—		—
Time deposits		240,243			242,067			—		—		242,067
Federal Home Loan Bank advances		37,735			38,710			—		—		38,710
Securities sold under agreement to repurchase		20,810			20,810			20,810		—		—
Subordinated debentures		29,427			21,412			—		—		21,412
Accrued interest payable		159			159			159		—		—
December 31, 2012	Carrying			Total Fair			Level 1		Level 2		Level 3
	Amount			Value
Financial Assets:
Cash and due from financial institutions	$	46,131		$	46,131		$	46,131	$	—	$	—
Securities available for sale		203,961			203,961			—		203,493		468
Other securities		15,567			15,567			15,567		—		—
Loans, available for sale		1,873			1,873			1,873		—		—
Loans, net of allowance for loan losses		795,811			812,950			—		—		812,950
Bank owned life insurance		18,590			18,590			18,590		—		—
Accrued interest receivable		3,709			3,709			3,709		—		—
Mortgage servicing rights		308			308			—		—		308
Financial Liabilities:
Nonmaturing deposits		662,387			662,387			662,387		—		—
Time deposits		264,002			265,974			—		—		265,974
Federal Home Loan Bank advances		40,261			41,658			—		—		41,658
Securities sold under agreement to repurchase		23,219			23,219			23,219		—		—
Subordinated debentures		29,427			26,855			—		—		26,855
Accrued interest payable		185			185			185		—		—
Cash and due from financial institutions: The carrying amounts for cash and due from financial institutions approximate fair value because they have original maturities of less than 90 days and do not present unanticipated credit concerns.
Available-for-sale securities: The fair value of securities are determined by matrix pricing, which is a mathematical technique widely used in the industry to value debt securities without relying exclusively on quoted prices for specific securities. Instead, this method relies on the securities relationship to other benchmark quoted securities (Level 2 inputs). For equity securities, management uses market information related to the value of similar institutions to determine the fair value (Level 2 inputs). At December 31, 2012, management used significant unobservable inputs to determine the fair value of one security (Level 3 inputs). These inputs included appraised values of the underlying collateral and estimated costs to sell the collateral. The value of the collateral has been discounted to represent the value in a distressed sale situation.
Other securities: The carrying value of regulatory stock approximates fair value based on applicable redemption provisions.
Loans, available-for-sale: Loans held for sale are priced individually at market rates on the day that the loan is locked for commitment to an investor. Because the holding period of such loans is typically short, the carrying value generally approximates the fair value at the time the commitment is received. All loans in the held-for-sale account conform to Fannie Mae underwriting guidelines, with specific intent of the loan being purchased by an investor at the predetermined rate structure.
Loans, net of allowance for loan losses: Fair values for loans, other than impaired, are estimated for portfolios of loans with similar financial characteristics. The fair value of performing loans has been estimated by discounting expected future cash flows of the underlying portfolios. The discount rates used in these calculations are generally derived from the treasury yield curve and are calculated by discounting scheduled cash flows through the estimated maturity using estimated market discount rates that reflect the credit and interest rate inherent in the loan. The estimated maturity is based on the Corporation’s historical experience with repayments for each loan classification. Changes in these significant unobservable inputs used in discounted cash flow analysis, such as the discount rate or prepayment speeds, could lead to changes in the underlying fair value.
Bank owned life insurance: The carrying value of bank owned life insurance approximates the fair value based on applicable redemption provisions.
Accrued interest receivable and payable and securities sold under agreements to repurchase: The carrying amounts for accrued interest receivable, accrued interest payable and securities sold under agreements to repurchase approximate fair value because they are generally received or paid in 90 days or less and do not present unanticipated credit concerns.
Deposits: The fair value of deposits with no stated maturity, such as noninterest-bearing demand deposits, savings and NOW accounts, and money market accounts, is equal to the amount payable on demand.
The fair value of certificates of deposit is based on the discounted value of contractual cash flows. The discount rate is estimated using the current market rates currently offered for deposits of similar remaining maturities.
The deposits’ fair value estimates 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.
Federal Home Loan Bank advances: Rates available to the Corporation for borrowed funds with similar terms and remaining maturities are used to estimate the fair value of borrowed funds.
Subordinated debentures: The fair value of subordinated debentures is based on the discounted value of contractual cash flows of the underlying debt agreements. The discount rate is estimated using the current rate for the borrowing from the Federal Home Loan Bank (FHLB) with the most similar terms.
Mortgage servicing rights: Mortgage servicing rights are measured at the lower of amortized cost or fair value. Periodic impairment assessments are performed based on fair value estimates at the reporting date. The fair value of mortgage servicing rights are estimated based on a valuation model which calculates the present value of estimated future cash flows associated with servicing the underlying loans. The model incorporates assumptions that market participants use in estimating future net servicing income, including estimated prepayment speeds, market discount rates and the cost to service each loan. The fair value measurements are classified as Level 3.

Participation_in_the_US_Treasu

Participation in the U.S. Treasury Troubled Asset Relief Program	9 Months Ended
	Sep. 30, 2013
Equity [Abstract]	'
Participation in the U.S. Treasury Troubled Asset Relief Program	'
	(12) Participation in the U.S. Treasury Troubled Asset Relief Program
	On January 23, 2009, the Corporation issued and sold to the U.S. Treasury of 23,184 of newly-issued non-voting preferred shares in conjunction with the Corporation’s participation in the Troubled Asset Relief Program (TARP). The Corporation and the U.S. Treasury entered into a Letter Agreement, dated January 23, 2009, including the Securities Purchase Agreement – Standard Terms attached thereto, pursuant to which the Corporation issued and sold to the U.S. Treasury (1) 23,184 Fixed Rate Cumulative Perpetual Preferred Shares, Series A, each without par value and having a liquidation preference of $1,000 per share (Preferred Shares), and (2) a Warrant to purchase 469,312 common shares of the Corporation, each without par value, at an exercise price of $7.41 per share. The Warrant had a ten-year term. Under the standardized terms of the preferred shares, cumulative dividends on the Preferred Shares accrue on the liquidation preference at a rate of 5% per annum for the first five years, and at a rate of 9% per annum thereafter, but will be paid only if, as and when declared by the Corporation’s Board of Directors. The Preferred Shares have no maturity date and rank senior to the common shares with respect to the payment of dividends and distributions and amounts payable upon liquidation, dissolution and winding up of the Corporation. The Preferred Shares qualify as Tier 1 capital for regulatory purposes
	On July 3, 2012, the U.S. Treasury completed the sale of all 23,184 of the Preferred Shares to various investors pursuant to a modified “Dutch auction” process. On September 5, 2012, the Corporation completed the repurchase of the Warrant for an aggregate purchase price of $563.

Consolidated_Financial_Stateme1

Consolidated Financial Statements (Policies)	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Nature of Operations and Principles of Consolidation	'
	Nature of Operations and Principles of Consolidation: The Consolidated Financial Statements include the accounts of First Citizens Banc Corp (FCBC) and its wholly-owned subsidiaries: The Citizens Banking Company (Citizens), First Citizens Insurance Agency, Inc., Water Street Properties, Inc. (Water St.) and FC Refund Solutions, Inc (FCRS). FCRS was formed to facilitate payment of individual state and federal income tax refunds. First Citizens Capital LLC (FCC) is wholly-owned by Citizens and holds inter-company debt. The operations of FCC are located in Wilmington, Delaware. First Citizens Investments, Inc. (FCI) is wholly-owned by Citizens and holds and manages Citizens’ securities portfolio. The operations of FCI are located in Wilmington, Delaware. The above companies together are referred to as the “Corporation.” Intercompany balances and transactions are eliminated in consolidation.
	The consolidated financial statements have been prepared by the Corporation without audit. In the opinion of management, all adjustments (which include only normal recurring adjustments) necessary to present fairly the Corporation’s financial position as of September 30, 2013 and its results of operations and changes in cash flows for the periods ended September 30, 2013 and 2012 have been made. The accompanying Consolidated Financial Statements have been prepared in accordance with instructions of Form 10-Q, and therefore certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States of America have been omitted. The results of operations for the period ended September 30, 2013 are not necessarily indicative of the operating results for the full year. Reference is made to the accounting policies of the Corporation described in the notes to the financial statements contained in the Corporation’s 2012 annual report. The Corporation has consistently followed these policies in preparing this Form 10-Q.
	The Corporation provides financial services through its offices in the Ohio counties of Erie, Crawford, Champaign, Franklin, Logan, Madison, Summit, Huron, Ottawa, and Richland. Its primary deposit products are checking, savings, and term certificate accounts, and its primary lending products are residential mortgage, commercial, and installment loans. Substantially all loans are secured by specific items of collateral including business assets, consumer assets and commercial and residential real estate. Commercial loans are expected to be repaid from cash flow from operations of businesses. There are no significant concentrations of loans to any one industry or customer. However, the customers’ ability to repay their loans is dependent on the real estate and general economic conditions in the area. Other financial instruments that potentially represent concentrations of credit risk include deposit accounts in other financial institutions and Federal Funds sold. First Citizens Insurance Agency, Inc. was formed to allow the Corporation to participate in commission revenue generated through its third party insurance agreement. Insurance commission revenue was less than 1.0% of total revenue through September 30, 2013. Water St. revenue was less than 1.0% of total revenue through September 30, 2013. Management considers the Corporation to operate primarily in one reportable segment, banking.
Use of Estimates	'
	Use of Estimates: To prepare financial statements in conformity with accounting principles generally accepted in the United States of America, management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in financial statements and the disclosures provided, and future results could differ. The allowance for loan losses, impairment of goodwill, fair values of financial instruments, deferred taxes and pension obligations are particularly subject to change.
Income Taxes	'
	Income Taxes: Income tax expense is based on the effective tax rate expected to be applicable for the entire year. Income tax expense is the total of the current year income tax due or refundable and the change in deferred tax assets and liabilities. Deferred tax assets and liabilities are the expected future tax amounts for the temporary differences between carrying amounts and tax basis of assets and liabilities, computed using enacted tax rates. A valuation allowance, if needed, reduces deferred tax assets to the amount expected to be realized.
Reclassifications	'
	Reclassifications: Some items in the prior year financial statements were reclassified to conform to the current presentation.
Effect of Newly Issued but Not Yet Effective Accounting Standards	'
	Effect of Newly Issued but Not Yet Effective Accounting Standards:
	In February 2013, the FASB issued ASU 2013-04, Liabilities (Topic 405): Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation Is Fixed at the Reporting Date. The objective of the amendments in this Update is to provide guidance for the recognition, measurement, and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of the obligation within the scope of this guidance is fixed at the reporting date, except for obligations addressed within existing guidance in U.S. generally accepted accounting principles (GAAP). Examples of obligations within the scope of this Update include debt arrangements, other contractual obligations, and settled litigation and judicial rulings. U.S. GAAP does not include specific guidance on accounting for such obligations with joint and several liability, which has resulted in diversity in practice. Some entities record the entire amount under the joint and several liability arrangements on the basis of the concept of a liability and the guidance that must be met to extinguish a liability. Other entities record less than the total amount of the obligation, such as an amount allocated, an amount corresponding to the proceeds received, or the portion of the amount the entity agreed to pay among its co-obligors, on the basis of the guidance for contingent liabilities. The amendments in this Update are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. Adoption of this Update is not expected to have a significant impact on the Corporation’s financial statements.
	In July 2013, the FASB issued ASU 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. This Update applies to all entities that have unrecognized tax benefits when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists at the reporting date. 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 tax law of 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. The assessment of whether a deferred tax asset is available is based on the unrecognized tax benefit and deferred tax asset that exist at the reporting date and should be made presuming disallowance of the tax position at the reporting date. The amendments in this Update are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. Management is currently investigating the potential impact of this Update to the Corporation’s financial statements.

Securities_Tables

Securities (Tables)	9 Months Ended
	Sep. 30, 2013
Investments Debt And Equity Securities [Abstract]	'
Available for Sale Securities	'
	The amortized cost and fair market value of available for sale securities and the related gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) were as follows:
		Amortized		Gross			Gross			Fair Value
		Cost		Unrealized			Unrealized
				Gains			Losses
	September 30, 2013
	U.S. Treasury securities and obligations of U.S. government agencies	$	54,494	$	120		$	(650	)	$	53,964
	Obligations of states and political subdivisions		80,048		2,907			(1,480	)		81,475
	Mortgage-backed securities in government sponsored entities		63,779		1,152			(447	)		64,484
	Total debt securities		198,321		4,179			(2,577	)		199,923
	Equity securities in financial institutions		481		—			(48	)		433
	Total	$	198,802	$	4,179		$	(2,625	)	$	200,356
		Amortized		Gross			Gross			Fair Value
		Cost		Unrealized			Unrealized
				Gains			Losses
	December 31, 2012
	U.S. Treasury securities and obligations of U.S. government agencies	$	53,919	$	375		$	(8	)	$	54,286
	Obligations of states and political subdivisions		72,884		6,946			(24	)		79,806
	Mortgage-backed securities in government sponsored entities		67,814		1,854			(233	)		69,435
	Total debt securities		194,617		9,175			(265	)		203,527
	Equity securities in financial institutions		481		—			(47	)		434
	Total	$	195,098	$	9,175		$	(312	)	$	203,961
Fair Value of Securities Available for Sale by Contractual Maturity	'
	The fair value of securities at September 30, 2013, by contractual maturity, is shown below. Actual maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations. Securities not due at a single maturity date, primarily mortgage-backed securities and equity securities, are shown separately.
		Amortized Cost		Fair Value
	Available for sale
	Due in one year or less	$	6,450	$	6,478
	Due after one year through five years		21,276		21,110
	Due after five years through ten years		32,826		33,144
	Due after ten years		73,990		74,707
	Mortgage-backed securities		63,779		64,484
	Equity securities		481		433
	Total securities available for sale	$	198,802	$	200,356
Proceeds from Sales of Securities, Gross Realized Gains and Losses	'
	Proceeds from sales of securities, gross realized gains and gross realized losses were as follows.
		Three months ended					Nine months ended
		September 30,					September 30,
		2013		2012			2013			2012
	Sale proceeds	$	927	$	—		$	8,686		$	12,982
	Gross realized gains		—		—			144			99
	Gross realized losses		—		—			89			59
	Gains from securities called or settled by the issuer		80		—			83			—
Securities with Unrealized Losses not Recognized in Income	'
	Securities with unrealized losses at September 30, 2013 and December 31, 2012 not recognized in income are as follows:
	September 30, 2013	12 Months or less					More than 12 months						Total
		Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
	Description of Securities	Value		Loss			Value			Loss			Value		Loss
	U.S. Treasury securities and obligations of U.S. government agencies	$	32,170	$	(650	)	$	—		$	—		$	32,170	$	(650	)
	Obligations of states and political subdivisions		25,519		(1,480	)		—			—			25,519		(1,480	)
	Mortgage-backed securities in gov’t sponsored entities		22,329		(441	)		349			(6	)		22,678		(447	)
	Equity securities		481		(48	)		—			—			481		(48	)
	Total temporarily impaired	$	80,499	$	(2,619	)	$	349		$	(6	)	$	80,848	$	(2,625	)
	December 31, 2012	12 Months or less					More than 12 months						Total
		Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
	Description of Securities	Value		Loss			Value			Loss			Value		Loss
	U.S. Treasury securities and obligations of U.S. government agencies	$	6,184	$	(8	)	$	—		$	—		$	6,184	$	(8	)
	Obligations of states and political subdivisions		1,440		(22	)		465			(2	)		1,905		(24	)
	Mortgage-backed securities in gov’t sponsored entities		7,907		(215	)		2,122			(18	)		10,029		(233	)
	Equity securities in financial institutions		434		(47	)		—			—			434		(47	)
	Total temporarily impaired	$	15,965	$	(292	)	$	2,587		$	(20	)	$	18,552	$	(312	)

Loans_Tables

Loans (Tables)	9 Months Ended
	Sep. 30, 2013
Receivables [Abstract]	'
Summary of Loan Balances	'
	Loan balances were as follows:
		September 30,			December 31,
		2013			2012
	Commercial and agriculture	$	105,830		$	100,661
	Commercial real estate		431,733			434,808
	Residential real estate		244,393			250,598
	Real estate construction		26,661			19,677
	Consumer and other		10,954			9,809
	Total loans		819,571			815,553
	Allowance for loan losses		(17,297	)		(19,742	)
	Net loans	$	802,274		$	795,811

Allowance_for_Loan_Losses_Tabl

Allowance for Loan Losses (Tables)	9 Months Ended
	Sep. 30, 2013
Text Block [Abstract]	'
Allowance Related to Unallocated Segment	'
		Commercial			Commercial			Residential			Real Estate			Consumer			Unallocated			Total
		& Agriculture			Real Estate			Real Estate			Construction
	For the nine months ending September 30, 2013
	Allowance for loan losses:
	Beginning balance	$	2,811		$	10,139		$	5,780		$	349		$	246		$	417		$	19,742
	Charge-offs		(301	)		(1,266	)		(2,579	)		(136	)		(183	)		—			(4,465	)
	Recoveries		123			257			364			107			69			—			920
	Provision		418			(1,221	)		1,312			(160	)		27			724			1,100
	Ending Balance	$	3,051		$	7,909		$	4,877		$	160		$	159		$	1,141		$	17,297
		Commercial			Commercial			Residential			Real Estate			Consumer			Unallocated			Total
		& Agriculture			Real Estate			Real Estate			Construction
	For the nine months ending September 30, 2012
	Allowance for loan losses:
	Beginning balance	$	2,876		$	10,571		$	5,796		$	974		$	719		$	321		$	21,257
	Charge-offs		(610	)		(2,463	)		(2,803	)		(297	)		(174	)		—			(6,347	)
	Recoveries		280			371			208			104			51			—			1,014
	Provision		23			2,748			2,758			284			(343	)		95			5,565
	Ending Balance	$	2,569		$	11,227		$	5,959		$	1,065		$	253		$	416		$	21,489
		Commercial			Commercial			Residential			Real Estate			Consumer			Unallocated			Total
		& Agriculture			Real Estate			Real Estate			Construction
	For the three months ending September 30, 2013
	Allowance for loan losses:
	Beginning balance	$	3,775		$	9,156		$	5,169		$	184		$	149		$	972		$	19,405
	Charge-offs		(210	)		(635	)		(1,558	)		(136	)		(61	)		—			(2,600	)
	Recoveries		62			34			63			1			32			—			192
	Provision		(576	)		(646	)		1,203			111			39			169			300
	Ending Balance	$	3,051		$	7,909		$	4,877		$	160		$	159		$	1,141		$	17,297
		Commercial			Commercial			Residential			Real Estate			Consumer			Unallocated			Total
		& Agriculture			Real Estate			Real Estate			Construction
	For the three months ending September 30, 2012
	Allowance for loan losses:
	Beginning balance	$	2,537		$	11,701		$	6,379		$	1,095		$	262		$	(43	)	$	21,931
	Charge-offs		(192	)		(824	)		(1,334	)		(192	)		(49	)		—			(2,591	)
	Recoveries		180			196			47			(9	)		35			—			449
	Provision		44			154			867			171			5			459			1,700
	Ending Balance	$	2,569		$	11,227		$	5,959		$	1,065		$	253		$	416		$	21,489
	September 30, 2013	Commercial			Commercial			Residential			Real Estate			Consumer			Unallocated			Total
		& Agriculture			Real Estate			Real Estate			Construction
	Allowance for loan losses:
	Ending balance:
	Individually evaluated for impairment	$	1,054		$	454		$	204		$	—		$	1		$	—		$	1,713
	Ending balance:
	Collectively evaluated for impairment	$	1,997		$	7,455		$	4,673		$	160		$	158		$	1,141		$	15,584
	Ending Balance	$	3,051		$	7,909		$	4,877		$	160		$	159		$	1,141		$	17,297
	Loan balances outstanding:
	Ending balance:
	Individually evaluated for impairment	$	3,920		$	9,813		$	4,025		$	—		$	21					$	17,779
	Ending balance:
	Collectively evaluated for impairment	$	101,910		$	421,920		$	240,368		$	26,661		$	10,933					$	801,792
	Ending Balance	$	105,830		$	431,733		$	244,393		$	26,661		$	10,954					$	819,571
	December 31, 2012	Commercial			Commercial			Residential			Real Estate			Consumer			Unallocated			Total
		& Agriculture			Real Estate			Real Estate			Construction
	Allowance for loan losses:
	Ending balance:
	Individually evaluated for impairment	$	286		$	2,354		$	1,199		$	107		$	60		$	—		$	4,006
	Ending balance:
	Collectively evaluated for impairment	$	2,525		$	7,785		$	4,581		$	242		$	186		$	417		$	15,736
	Ending Balance	$	2,811		$	10,139		$	5,780		$	349		$	246		$	417		$	19,742
	Loan balances outstanding:
	Ending balance:
	Individually evaluated for impairment	$	5,420		$	13,941		$	6,127		$	541		$	61					$	26,090
	Ending balance:
	Collectively evaluated for impairment	$	95,241		$	420,867		$	244,471		$	19,136		$	9,748					$	789,463
Ending Balance	$	100,661		$	434,808		$	250,598		$	19,677		$	9,809					$	815,553
Credit Exposures by Internally Assigned Grades	'
	September 30, 2013	Commercial			Commercial			Residential			Real Estate			Consumer			Total
		& Agriculture			Real Estate			Real Estate			Construction
	Pass	$	97,258		$	406,253		$	95,677		$	22,295		$	2,289		$	623,772
	Special Mention		2,804			7,714			996			21			—			11,535
	Substandard		5,768			17,766			10,289			—			90			33,913
	Doubtful		—			—			—			—			—			—
	Ending Balance	$	105,830		$	431,733		$	106,962		$	22,316		$	2,379		$	669,220
	December 31, 2012	Commercial			Commercial			Residential			Real Estate			Consumer			Total
		& Agriculture			Real Estate			Real Estate			Construction
	Pass	$	90,159		$	397,657		$	89,896		$	16,594		$	994		$	595,300
	Special Mention		1,653			6,371			1,944			352			—			10,320
	Substandard		8,849			30,780			12,873			1,001			106			53,609
	Doubtful		—			—			—			—			—			—
	Ending Balance	$	100,661		$	434,808		$	104,713		$	17,947		$	1,100		$	659,229
Performing and Nonperforming Loans	'
	Certain TDRs are classified as nonperforming at the time of restructure and may only be returned to performing status after considering the borrower’s sustained repayment performance for a reasonable period, generally six months.
		Residential			Real Estate			Consumer			Total
		Real Estate			Construction
	30-Sep-13
	Performing	$	137,431		$	4,345		$	8,575		$	150,351
	Nonperforming		—			—			—			—
	Total	$	137,431		$	4,345		$	8,575		$	150,351
		Residential			Real Estate			Consumer			Total
		Real Estate			Construction
	31-Dec-12
	Performing	$	145,879		$	1,730		$	8,696		$	156,305
	Nonperforming		6			—			13			19
	Total	$	145,885		$	1,730		$	8,709		$	156,324
Aging Analysis of Past Due Loans	'
	The following tables includes an aging analysis of the recorded investment of past due loans outstanding as of September 30, 2013 and December 31, 2012.
	September 30, 2013	30-59			60-89			90 Days or			Total Past			Current			Total Loans			Past Due
		Days			Days			Greater			Due									90 Days
		Past Due			Past Due															and
																				Accruing
	Commericial & Agriculture	$	—		$	4		$	304		$	308		$	105,522		$	105,830		$	—
	Commercial Real Estate		271			653			2,929			3,853			427,880			431,733			—
	Residential Real Estate		733			393			5,412			6,538			237,855			244,393			—
	Real Estate Construction		—			—			—			—			26,661			26,661			—
	Consumer		60			8			25			93			10,861			10,954			—
	Total	$	1,064		$	1,058		$	8,670		$	10,792		$	808,779		$	819,571		$	—
	December 31, 2012	30-59			60-89			90 Days or			Total Past			Current			Total Loans			Past Due
		Days			Days			Greater			Due									90 Days
		Past Due			Past Due															and
																				Accruing
	Commericial & Agriculture	$	31		$	72		$	553		$	656		$	100,005		$	100,661		$	—
	Commercial Real Estate		1,000			533			6,794			8,327			426,481			434,808			80
	Residential Real Estate		2,843			1,214			8,527			12,584			238,014			250,598			—
	Real Estate Construction		43			—			416			459			19,218			19,677			—
	Consumer		127			20			29			176			9,633			9,809			—
	Total	$	4,044		$	1,839		$	16,319		$	22,202		$	793,351		$	815,553		$	80
Summary of Nonaccrual Loans	'
	The following table presents loans on nonaccrual status as of September 30, 2013 and December 31, 2012.
		September 30, 2013			December 31, 2012
	Commericial & Agriculture	$	1,599		$	2,869
	Commercial Real Estate		9,562			16,250
	Residential Real Estate		9,458			9,701
	Real Estate Construction		—			958
	Consumer		75			77
	Total	$	20,694		$	29,855
Schedule of Troubled Debt Restructurings	'
	Loan modifications that are considered TDRs completed during the nine month periods ended September 30, 2013 and September 30, 2012 were as follows:
		For the Nine-Month Period Ended									For the Nine-Month Period Ended
		September 30, 2013									September 30, 2012
		Number			Pre-Modification			Post-			Number			Pre-Modification			Post-
		of			Outstanding			Modification			of			Outstanding			Modification
		Contracts			Recorded			Outstanding			Contracts			Recorded			Outstanding
					Investment			Recorded						Investment			Recorded
								Investment									Investment
	Commericial & Agriculture		—		$	—		$	—			6		$	983		$	976
	Commercial Real Estate		2			547			547			3			1,206			1,206
	Residential Real Estate		—			—			—			21			1,250			1,171
	Real Estate Construction		—			—			—			—			—			—
	Consumer and Other		—			—			—			5			66			66
	Total Loan Modifications		2		$	547		$	547			35		$	3,505		$	3,419
	Loan modifications that are considered TDRs completed during the quarter ended September 30, 2013 and September 30, 2012 were as follows:
		For the Three-Month Period Ended									For the Three-Month Period Ended
		September 30, 2013									September 30, 2012
		Number			Pre-Modification			Post-			Number			Pre-Modification			Post-
		of			Outstanding			Modification			of			Outstanding			Modification
		Contracts			Recorded			Outstanding			Contracts			Recorded			Outstanding
					Investment			Recorded						Investment			Recorded
								Investment									Investment
	Commericial & Agriculture		—		$	—		$	—			2		$	197		$	497
	Commercial Real Estate		1			422			422			—			—			—
	Residential Real Estate		—			—			—			1			385			385
	Real Estate Construction		—			—			—			—			—			—
	Consumer and Other		—			—			—			1			19			19
	Total Loan Modifications		1		$	422		$	422			4		$	601		$	901
Impaired Financing Receivables	'
	The following tables include the recorded investment and unpaid principal balances for impaired financing receivables with the associated allowance amount, if applicable, as of September 30, 2013 and December 31, 2012.
		September 30, 2013									December 31, 2012
		Recorded			Unpaid			Related			Recorded			Unpaid			Related
		Investment			Principal			Allowance			Investment			Principal			Allowance
					Balance									Balance
	With no related allowance recorded:
	Commercial & Agriculture	$	1,206		$	1,326		$	—		$	5,053		$	5,226		$	—
	Commercial Real Estate		5,341			6,260			—			5,446			8,114			—
	Residential Real Estate		3,049			5,108			—			2,566			5,346			—
	Real Estate Construction		—			—			—			—			521			—
	Consumer and Other		—			—			—			1			1			—
	Total		9,596			12,694			—			13,066			19,208			—
	With an allowance recorded:
	Commercial & Agriculture		2,714			3,031			1,054			367			385			286
	Commercial Real Estate		4,472			4,755			454			8,495			8,681			2,354
	Residential Real Estate		976			1,003			204			3,561			4,554			1,199
	Real Estate Construction		—			—			—			541			547			107
	Consumer and Other		21			21			1			60			60			60
	Total		8,183			8,810			1,713			13,024			14,227			4,006
	Total:
	Commercial & Agriculture		3,920			4,357			1,054			5,420			5,611			286
	Commercial Real Estate		9,813			11,015			454			13,941			16,795			2,354
	Residential Real Estate		4,025			6,111			204			6,127			9,900			1,199
	Real Estate Construction		—			—			—			541			1,068			107
	Consumer and Other		21			21			1			61			61			60
	Total	$	17,779		$	21,504		$	1,713		$	26,090		$	33,435		$	4,006
	The following tables include the average recorded investment and interest income recognized for impaired financing receivables for the three-month and nine-month periods ended September 30, 2013 and 2012.
	For the nine months ended:	September 30, 2013						September 30, 2012
		Average			Interest			Average			Interest
		Recorded			Income			Recorded			Income
		Investment			Recognized			Investment			Recognized
	Commercial & Agriculture	$	4,984		$	156		$	4,631		$	205
	Commercial Real Estate		12,328			438			17,060			995
	Residential Real Estate		5,324			287			4,628			391
	Real Estate Construction		377			—			531			11
	Consumer and Other		35			—			28			1
	Total	$	23,048		$	881		$	26,878		$	1,603
	For the three months ended:	September 30, 2013						September 30, 2012
		Average			Interest			Average			Interest
		Recorded			Income			Recorded			Income
		Investment			Recognized			Investment			Recognized
	Commercial & Agriculture	$	4,504		$	25		$	5,366		$	26
	Commercial Real Estate		11,237			29			16,448			329
	Residential Real Estate		4,773			18			5,227			145
	Real Estate Construction		240			(11	)		608			11
	Consumer and Other		21			—			54			1
	Total	$	20,775		$	61		$	27,703		$	512

Other_Comprehensive_Income_Tab

Other Comprehensive Income (Tables)	9 Months Ended
	Sep. 30, 2013
Equity [Abstract]	'
Changes in Each Component of Accumulated Other Comprehensive Loss, Net of Tax	'
	The following table presents the changes in each component of accumulated other comprehensive loss, net of tax, for the three-month and nine-month periods ended September 30, 2013:
			For the Three-Month Period Ended									For the Nine-Month Period Ended
			September 30, 2013									September 30, 2013
			Unrealized			Defined			Total			Unrealized			Defined			Total
			Gains and			Benefit						Gains and			Benefit
			Losses on			Pension						Losses on			Pension
			Available-for-			Items						Available-for-			Items
			Sale									Sale
			Securities									Securities
	Beginning balance		$	1,662		$	(7,273	)	$	(5,611	)	$	5,849		$	(7,496	)	$	(1,647	)
	Other comprehensive loss before reclassifications			(585	)		—			(585	)		(4,734	)		—			(4,734	)
	Amounts reclassified from accumulated other comprehensive loss			(53	)		119			66			(91	)		342			251
	Net current-period other comprehensive income (loss)			(638	)		119			(519	)		(4,825	)		342			(4,483	)
	Ending balance		$	1,024		$	(7,154	)	$	(6,130	)	$	1,024		$	(7,154	)	$	(6,130	)
Amounts Reclassified Out of Each Component of Accumulated Other Comprehensive Loss	'
	The following table presents the amounts reclassified out of each component of accumulated other comprehensive loss for the three-month and nine-month periods ended September 30, 2013:
			Amout Reclassified from
			Accumulated Other
			Comprehensive Loss (a)
	Details about Accumulated Other		For the three			For the nine			Affected Line Item in the
	Comprehensive Income (Loss) Components		months ended			months ended			Statement Where Net Income is Presented
			September 30,			September 30,
			2013			2013
	Unrealized gains and losses on available-for-sale securities		$	80		$	138		Net gain on sale of securities
				80			138		Total before tax
	Tax effect			(27	)		(47	)	Income tax expense
				53			91		Net of tax
	Amortization of defined benefit pension items
	Actuarial gains/(losses)			(180	)(b)		(518	)(b)	Salaries, wages and benefits
				(180	)		(518	)	Total before tax
	Tax effect			61			176		Income tax expense
				(119	)		(342	)	Net of tax
	Total reclassifications for the period		$	(66	)	$	(251	)	Net of tax
	(a)	Amounts in parentheses indicate debits to profit/loss.
	(b)	These accumulated other comprehensive income components are included in the computation of net periodic pension cost.

Earnings_per_Common_Share_Tabl

Earnings per Common Share (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Computation of Basic and Diluted Earnings per Common Share	'
	Basic earnings per share are net income available to common shareholders divided by the weighted average number of common shares outstanding during the period. Diluted earnings per common share include the dilutive effect, if any, of additional potential common shares issuable under stock options, computed using the treasury stock method.
		Three months ended				Nine months ended
		September 30,				September 30,
		2013		2012		2013		2012
	Basic
	Net income	$	1,566	$	1,384	$	5,136	$	3,613
	Preferred stock dividends and discount accretion		289		316		869		903
	Net income available to common shareholders	$	1,277	$	1,068	$	4,267	$	2,710
	Weighted average common shares outstanding		7,707,917		7,707,917		7,707,917		7,707,917
	Basic earnings per common share	$	0.17	$	0.14	$	0.55	$	0.35
	Diluted
	Net income	$	1,566	$	1,384	$	5,136	$	3,613
	Preferred stock dividends and discount accretion		289		316		869		903
	Net income available to common shareholders	$	1,277	$	1,068	$	4,267	$	2,710
	Weighted average common shares outstanding for basic earnings per common share		7,707,917		7,707,917		7,707,917		7,707,917
	Add: Dilutive effects of assumed exercises of stock options and warrants		—		—		—		—
	Average shares and dilutive potential common shares outstanding		7,707,917		7,707,917		7,707,917		7,707,917
	Diluted earnings per common share	$	0.17	$	0.14	$	0.55	$	0.35

Commitments_Contingencies_and_1

Commitments, Contingencies and Off-Balance Sheet Risk (Tables)	9 Months Ended
	Sep. 30, 2013
Commitments And Contingencies Disclosure [Abstract]	'
Contractual Amount of Financial Instruments with Off-Balance-Sheet Risk	'
	The contractual amounts of financial instruments with off-balance-sheet risk were as follows for September 30, 2013 and December 31, 2012:
		Contract Amount
		September 30, 2013				December 31, 2012
		Fixed		Variable		Fixed		Variable
		Rate		Rate		Rate		Rate
	Commitment to extend credit:
	Lines of credit and construction loans	$	6,618	$	159,489	$	9,378	$	118,182
	Overdraft protection		31		20,629		51		19,726
	Letters of credit		200		2,236		294		396
		$	6,849	$	182,354	$	9,723	$	138,304

Pension_Information_Tables

Pension Information (Tables)	9 Months Ended
	Sep. 30, 2013
Compensation And Retirement Disclosure [Abstract]	'
Components of Net Periodic Pension Expense	'
	Net periodic pension expense was as follows:
		Three months ended						Nine months ended
		September 30,						September 30,
		2013			2012			2013			2012
	Service cost	$	310		$	235		$	893		$	704
	Interest cost		228			229			656			686
	Expected return on plan assets		(249	)		(215	)		(716	)		(644	)
	Other components		180			90			518			270
	Net periodic pension cost	$	469		$	339		$	1,351		$	1,016

Stock_Options_Tables

Stock Options (Tables)	9 Months Ended
	Sep. 30, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Summary of Activity in Stock Option Plan	'
	A summary of the activity in the plan is as follows:
		Nine months ended					Nine months ended
		September 30, 2013					September 30, 2012
		Total options					Total options
		outstanding					outstanding
					Weighted					Weighted
					Average					Average
					Price					Price
		Shares			Per Share		Shares			Per Share
	Outstanding at beginning of year		10,000		$	35		29,500		$	25.42
	Granted		—			—		—			—
	Exercised		—			—		—			—
	Forfeited		—			—		—			—
	Expired		(10,000	)		35		(19,500	)		20.5
	Options outstanding, end of period		—		$	—		10,000		$	35
	Options exercisable, end of period		—		$	—		10,000		$	35

Fair_Value_Measurement_Tables

Fair Value Measurement (Tables)	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Assets Measured at Fair Value	'
	Assets measured at fair value are summarized below.
		Fair Value Measurements at
		September 30, 2013 Using:
		(Level 1)			(Level 2)			(Level 3)
	Assets:
	Assets measured at fair value on a recurring basis:
	U.S. Treasury securities and obligations of U.S. Government agencies	$	—		$	53,964		$	—
	Obligations of states and political subdivisions		—			81,475			—
	Mortgage-backed securities in government sponsored entities		—			64,484			—
	Equity securities in financial institutions		—			433			—
	Assets measured at fair value on a nonrecurring basis:
	Impaired loans	$	—		$	—		$	16,066
	Other real estate owned		—			—			158
		Fair Value Measurements at
		December 31, 2012 Using:
		(Level 1)			(Level 2)			(Level 3)
	Assets:
	Assets measured at fair value on a recurring basis:
	U.S. Treasury securities and obligations of U.S. Government agencies	$	—		$	54,286		$	—
	Obligations of states and political subdivisions		—			79,338			468
	Mortgage-backed securities in government sponsored entities		—			69,435			—
	Equity securities in financial institutions		—			434			—
	Assets measured at fair value on a nonrecurring basis:
	Impaired loans	$	—		$	—		$	22,084
	Other real estate owned		—			—			471
Quantitative Information about Level 3 Fair Value Measurements	'
	The following table presents quantitative information about the Level 3 significant unobservable inputs for assets and liabilities measured at fair value on a nonrecurring basis at September 30, 2013.
		Quantitative Information about Level 3 Fair Value Measurements
	September 30, 2013	Fair Value			Valuation Technique		Unobservable Input	Range
		Estimate
	Impaired loans	$	16,066		Appraisal of collateral		Appraisal adjustments	10% - 30%
							Liquidation expense	0% - 10%
							Holding period	0 -30 months
					Discounted cash flows		Discount rates	3.8% - 8.3%
	Other real estate owned	$	158		Appraisal of collateral		Appraisal adjustments	10% - 30%
							Liquidation expense	0% - 10%
	The following table presents quantitative information about the Level 3 significant unobservable inputs for assets and liabilities measured at fair value on a nonrecurring basis at December 31, 2012.
		Quantitative Information about Level 3 Fair Value Measurements
	December 31, 2012	Fair Value			Valuation Technique		Unobservable Input	Range
		Estimate
	Obligations of states and political subdivisions	$	468		Appraisal of collateral		Appraisal adjustments	20% - 30%
							Liquidation expense	8% - 12%
	Impaired loans	$	22,084		Appraisal of collateral		Appraisal adjustments	10% - 30%
							Liquidation expense	0% - 10%
							Holding period	0 -30 months
					Discounted cash flows		Discount rates	2% - 8.5%
	Other real estate owned	$	471		Appraisal of collateral		Appraisal adjustments	10% - 30%
							Liquidation expense	0% - 10%
Summary of Changes in Level 3 Fair-Value Category in Securities Available for Sale	'
	The following table presents the changes in the Level 3 fair-value category for the period ended September 30, 2013. The Corporation classifies financial instruments in Level 3 of the fair value hierarchy when there is reliance on at least one significant unobservable input to the valuation model. In addition to the unobservable inputs, the valuation models for Level 3 financial instruments typically also rely on a number of inputs that are readily observable, either directly or indirectly.
	Securities available for sale
	Beginning balance January 1, 2013	$	468
	Settlements		(468	)
	Ending balance September 30, 2013	$	—
Carrying Amount and Fair Values of Financial Instruments	'
	The carrying amount and fair values of financial instruments are as follows.
	September 30, 2013	Carrying			Total Fair			Level 1		Level 2		Level 3
		Amount			Value
	Financial Assets:
	Cash and due from financial institutions	$	50,093		$	50,093		$	50,093	$	—	$	—
	Securities available for sale		200,356			200,356			—		200,356		—
	Other securities		15,433			15,433			15,433		—		—
	Loans, available for sale		4,891			4,891			4,891		—		—
	Loans, net of allowance for loan losses		802,274			821,717			—		—		821,717
	Bank owned life insurance		19,013			19,013			19,013		—		—
	Accrued interest receivable		4,540			4,540			4,540		—		—
	Mortgage servicing rights		454			454			—		—		454
	Financial Liabilities:
	Nonmaturing deposits		702,215			702,215			702,215		—		—
	Time deposits		240,243			242,067			—		—		242,067
	Federal Home Loan Bank advances		37,735			38,710			—		—		38,710
	Securities sold under agreement to repurchase		20,810			20,810			20,810		—		—
	Subordinated debentures		29,427			21,412			—		—		21,412
	Accrued interest payable		159			159			159		—		—
	December 31, 2012	Carrying			Total Fair			Level 1		Level 2		Level 3
		Amount			Value
	Financial Assets:
	Cash and due from financial institutions	$	46,131		$	46,131		$	46,131	$	—	$	—
	Securities available for sale		203,961			203,961			—		203,493		468
	Other securities		15,567			15,567			15,567		—		—
	Loans, available for sale		1,873			1,873			1,873		—		—
	Loans, net of allowance for loan losses		795,811			812,950			—		—		812,950
	Bank owned life insurance		18,590			18,590			18,590		—		—
	Accrued interest receivable		3,709			3,709			3,709		—		—
	Mortgage servicing rights		308			308			—		—		308
	Financial Liabilities:
	Nonmaturing deposits		662,387			662,387			662,387		—		—
	Time deposits		264,002			265,974			—		—		265,974
	Federal Home Loan Bank advances		40,261			41,658			—		—		41,658
	Securities sold under agreement to repurchase		23,219			23,219			23,219		—		—
	Subordinated debentures		29,427			26,855			—		—		26,855
	Accrued interest payable		185			185			185		—		—

Consolidated_Financial_Stateme2

Consolidated Financial Statements - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2013
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]	'
Percentage of insurance commission revenue of total revenue	'less than 1.0%
Water St. [Member]	'
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]	'
Percentage of insurance commission revenue of total revenue	'less than 1.0%
Number of reportable segment	1

Securities_Available_for_Sale_

Securities - Available for Sale Securities (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	$198,802	$195,098
Gross Unrealized Gains	4,179	9,175
Gross Unrealized Losses	-2,625	-312
Total securities available for sale, Fair Value	200,356	203,961
U.S. Treasury Securities and Obligations of U.S. Government Agencies [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	54,494	53,919
Gross Unrealized Gains	120	375
Gross Unrealized Losses	-650	-8
Total securities available for sale, Fair Value	53,964	54,286
Obligations of States and Political Subdivisions [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	80,048	72,884
Gross Unrealized Gains	2,907	6,946
Gross Unrealized Losses	-1,480	-24
Total securities available for sale, Fair Value	81,475	79,806
Mortgage-backed Securities in Government Sponsored Entities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	63,779	67,814
Gross Unrealized Gains	1,152	1,854
Gross Unrealized Losses	-447	-233
Total securities available for sale, Fair Value	64,484	69,435
Total Debt Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	198,321	194,617
Gross Unrealized Gains	4,179	9,175
Gross Unrealized Losses	-2,577	-265
Total securities available for sale, Fair Value	199,923	203,527
Equity Securities in Financial Institutions [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	481	481
Gross Unrealized Gains	'	'
Gross Unrealized Losses	-48	-47
Total securities available for sale, Fair Value	$433	$434

Securities_Fair_Value_of_Secur

Securities - Fair Value of Securities Available for Sale by Contractual Maturity (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Investments Debt And Equity Securities [Abstract]	'	'
Due in one year or less, Amortized Cost	$6,450	'
Due after one year through five years, Amortized Cost	21,276	'
Due after five years through ten years, Amortized Cost	32,826	'
Due after ten years, Amortized Cost	73,990	'
Mortgage-backed securities, Amortized Cost	63,779	'
Equity securities, Amortized Cost	481	'
Total securities available for sale, Amortized Cost	198,802	195,098
Due in one year or less, Fair Value	6,478	'
Due after one year through five years, Fair Value	21,110	'
Due after five years through ten years, Fair Value	33,144	'
Due after ten years, Fair Value	74,707	'
Mortgage-backed securities, Fair Value	64,484	'
Equity securities, Fair Value	433	'
Total securities available for sale, Fair Value	$200,356	$203,961

Securities_Proceeds_from_Sales

Securities - Proceeds from Sales of Securities, Gross Realized Gains and Losses (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Amortized Cost And Fair Value Debt Securities [Abstract]	'	'	'	'
Sale proceeds	$927	'	$8,686	$12,982
Gross realized gains	'	'	144	99
Gross realized losses	'	'	89	59
Gains from securities called or settled by the issuer	$80	'	$83	'

Securities_Additional_Informat

Securities - Additional Information (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Security
Amortized Cost And Fair Value Debt Securities [Abstract]	'	'
Carrying value of pledged securities	$150,873	$147,204
Number of securities in portfolio with unrealized losses	74	'

Securities_Securities_with_Unr

Securities - Securities with Unrealized Losses not Recognized in Income (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
12 Months or less, Fair Value	$80,499	$15,965
12 Months or less, Unrealized Loss	-2,619	-292
More than 12 months, Fair Value	349	2,587
More than 12 months, Unrealized Loss	-6	-20
Total Fair Value	80,848	18,552
Total Unrealized Loss	-2,625	-312
U.S. Treasury Securities and Obligations of U.S. Government Agencies [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
12 Months or less, Fair Value	32,170	6,184
12 Months or less, Unrealized Loss	-650	-8
More than 12 months, Fair Value	'	'
More than 12 months, Unrealized Loss	'	'
Total Fair Value	32,170	6,184
Total Unrealized Loss	-650	-8
Obligations of States and Political Subdivisions [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
12 Months or less, Fair Value	25,519	1,440
12 Months or less, Unrealized Loss	-1,480	-22
More than 12 months, Fair Value	'	465
More than 12 months, Unrealized Loss	'	-2
Total Fair Value	25,519	1,905
Total Unrealized Loss	-1,480	-24
Mortgage-backed Securities in Government Sponsored Entities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
12 Months or less, Fair Value	22,329	7,907
12 Months or less, Unrealized Loss	-441	-215
More than 12 months, Fair Value	349	2,122
More than 12 months, Unrealized Loss	-6	-18
Total Fair Value	22,678	10,029
Total Unrealized Loss	-447	-233
Equity Securities in Financial Institutions [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
12 Months or less, Fair Value	481	434
12 Months or less, Unrealized Loss	-48	-47
More than 12 months, Fair Value	'	'
More than 12 months, Unrealized Loss	'	'
Total Fair Value	481	434
Total Unrealized Loss	($48)	($47)

Loans_Summary_of_Loan_Balances

Loans - Summary of Loan Balances (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total Loans	$819,571	$815,553
Allowance for loan losses	-17,297	-19,742
Net loans	802,274	795,811
Commercial and Agriculture [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total Loans	105,830	100,661
Commercial Real Estate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total Loans	431,733	434,808
Residential Real Estate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total Loans	244,393	250,598
Real Estate Construction [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total Loans	26,661	19,677
Consumer and Other [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total Loans	$10,954	$9,809

Allowance_for_Loan_Losses_Addi

Allowance for Loan Losses - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
	SecurityLoan	SecurityLoan	SecurityLoan	SecurityLoan
Receivables [Abstract]	'	'	'	'	'
Historical loss percentage period for portfolio segments	'	'	'3 years	'	'
Adequate allowance for loan losses	$17,297	'	$17,297	'	$19,742
Number of days past due for loans to be considered as nonperforming	'	'	'90 days	'	'
Reasonable period for nonperforming TDRs to be returned to performing status	'	'	'6 months	'	'
Number of days reaching where loans are considered for nonaccrual status	'	'	'90 days	'	'
Defaulted loans	0	0	2	0	'
Loans	'	'	$66	'	'
Impaired loans	'Greater than $500	'	'Greater than $500	'	'
Due days for testing impairment	'	'	'60 days	'	'

Allowance_for_Loan_Losses_Allo

Allowance for Loan Losses - Allowance Related to Unallocated Segment (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Allowance for loan losses:	'	'	'	'	'
Beginning balance	$19,405	$21,931	$19,742	$21,257	'
Charge-offs	-2,600	-2,591	-4,465	-6,347	'
Recoveries	192	449	920	1,014	'
Provision	300	1,700	1,100	5,565	'
Ending Balance	17,297	21,489	17,297	21,489	'
Individually evaluated for impairment	1,713	'	1,713	'	4,006
Collectively evaluated for impairment	15,584	'	15,584	'	15,736
Ending Balance	17,297	21,489	17,297	21,489	'
Loan balances outstanding:	'	'	'	'	'
Financing Receivable, Individually evaluated for impairment	17,779	'	17,779	'	26,090
Financing Receivable, Collectively evaluated for impairment	801,792	'	801,792	'	789,463
Ending Balance	819,571	'	819,571	'	815,553
Commercial and Agriculture [Member]	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'
Beginning balance	3,775	2,537	2,811	2,876	'
Charge-offs	-210	-192	-301	-610	'
Recoveries	62	180	123	280	'
Provision	-576	44	418	23	'
Ending Balance	3,051	2,569	3,051	2,569	'
Individually evaluated for impairment	1,054	'	1,054	'	286
Collectively evaluated for impairment	1,997	'	1,997	'	2,525
Ending Balance	3,051	2,569	3,051	2,569	'
Loan balances outstanding:	'	'	'	'	'
Financing Receivable, Individually evaluated for impairment	3,920	'	3,920	'	5,420
Financing Receivable, Collectively evaluated for impairment	101,910	'	101,910	'	95,241
Ending Balance	105,830	'	105,830	'	100,661
Commercial Real Estate [Member]	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'
Beginning balance	9,156	11,701	10,139	10,571	'
Charge-offs	-635	-824	-1,266	-2,463	'
Recoveries	34	196	257	371	'
Provision	-646	154	-1,221	2,748	'
Ending Balance	7,909	11,227	7,909	11,227	'
Individually evaluated for impairment	454	'	454	'	2,354
Collectively evaluated for impairment	7,455	'	7,455	'	7,785
Ending Balance	7,909	11,227	7,909	11,227	'
Loan balances outstanding:	'	'	'	'	'
Financing Receivable, Individually evaluated for impairment	9,813	'	9,813	'	13,941
Financing Receivable, Collectively evaluated for impairment	421,920	'	421,920	'	420,867
Ending Balance	431,733	'	431,733	'	434,808
Residential Real Estate [Member]	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'
Beginning balance	5,169	6,379	5,780	5,796	'
Charge-offs	-1,558	-1,334	-2,579	-2,803	'
Recoveries	63	47	364	208	'
Provision	1,203	867	1,312	2,758	'
Ending Balance	4,877	5,959	4,877	5,959	'
Individually evaluated for impairment	204	'	204	'	1,199
Collectively evaluated for impairment	4,673	'	4,673	'	4,581
Ending Balance	4,877	5,959	4,877	5,959	'
Loan balances outstanding:	'	'	'	'	'
Financing Receivable, Individually evaluated for impairment	4,025	'	4,025	'	6,127
Financing Receivable, Collectively evaluated for impairment	240,368	'	240,368	'	244,471
Ending Balance	244,393	'	244,393	'	250,598
Real Estate Construction [Member]	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'
Beginning balance	184	1,095	349	974	'
Charge-offs	-136	-192	-136	-297	'
Recoveries	1	-9	107	104	'
Provision	111	171	-160	284	'
Ending Balance	160	1,065	160	1,065	'
Individually evaluated for impairment	'	'	'	'	107
Collectively evaluated for impairment	160	'	160	'	242
Ending Balance	160	1,065	160	1,065	'
Loan balances outstanding:	'	'	'	'	'
Financing Receivable, Individually evaluated for impairment	'	'	'	'	541
Financing Receivable, Collectively evaluated for impairment	26,661	'	26,661	'	19,136
Ending Balance	26,661	'	26,661	'	19,677
Consumer [Member]	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'
Beginning balance	149	262	246	719	'
Charge-offs	-61	-49	-183	-174	'
Recoveries	32	35	69	51	'
Provision	39	5	27	-343	'
Ending Balance	159	253	159	253	'
Individually evaluated for impairment	1	'	1	'	60
Collectively evaluated for impairment	158	'	158	'	186
Ending Balance	159	253	159	253	'
Loan balances outstanding:	'	'	'	'	'
Financing Receivable, Individually evaluated for impairment	21	'	21	'	61
Financing Receivable, Collectively evaluated for impairment	10,933	'	10,933	'	9,748
Ending Balance	10,954	'	10,954	'	9,809
Unallocated [Member]	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'
Beginning balance	972	-43	417	321	'
Charge-offs	'	'	'	'	'
Recoveries	'	'	'	'	'
Provision	169	459	724	95	'
Ending Balance	1,141	416	1,141	416	'
Individually evaluated for impairment	'	'	'	'	'
Collectively evaluated for impairment	1,141	'	1,141	'	417
Ending Balance	1,141	416	1,141	416	'
Loan balances outstanding:	'	'	'	'	'
Financing Receivable, Individually evaluated for impairment	'	'	'	'	'
Financing Receivable, Collectively evaluated for impairment	'	'	'	'	'
Ending Balance	'	'	'	'	'

Allowance_for_Loan_Losses_Cred

Allowance for Loan Losses - Credit Exposures by Internally Assigned Grades (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	$669,220	$659,229
Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	623,772	595,300
Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	11,535	10,320
Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	33,913	53,609
Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	'	'
Commercial and Agriculture [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	105,830	100,661
Commercial and Agriculture [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	97,258	90,159
Commercial and Agriculture [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	2,804	1,653
Commercial and Agriculture [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	5,768	8,849
Commercial and Agriculture [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	'	'
Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	431,733	434,808
Commercial Real Estate [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	406,253	397,657
Commercial Real Estate [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	7,714	6,371
Commercial Real Estate [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	17,766	30,780
Commercial Real Estate [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	'	'
Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	106,962	104,713
Residential Real Estate [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	95,677	89,896
Residential Real Estate [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	996	1,944
Residential Real Estate [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	10,289	12,873
Residential Real Estate [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	'	'
Real Estate Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	22,316	17,947
Real Estate Construction [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	22,295	16,594
Real Estate Construction [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	21	352
Real Estate Construction [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	'	1,001
Real Estate Construction [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	'	'
Consumer [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	2,379	1,100
Consumer [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	2,289	994
Consumer [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	'	'
Consumer [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	90	106
Consumer [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Credit exposures by internally assigned grades	'	'

Allowance_for_Loan_Losses_Perf

Allowance for Loan Losses - Performing and Nonperforming Loans (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'
Performing	$150,351	$156,305
Nonperforming	'	19
Total	150,351	156,324
Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Performing	137,431	145,879
Nonperforming	'	6
Total	137,431	145,885
Real Estate Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Performing	4,345	1,730
Nonperforming	'	'
Total	4,345	1,730
Consumer [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Performing	8,575	8,696
Nonperforming	'	13
Total	$8,575	$8,709

Allowance_for_Loan_Losses_Agin

Allowance for Loan Losses - Aging Analysis of Past Due Loans (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	$1,064	$4,044
60-89 Days Past Due	1,058	1,839
90 Days or Greater	8,670	16,319
Total Past Due	10,792	22,202
Current	808,779	793,351
Total Loans	819,571	815,553
Past Due 90 Days and Accruing	'	80
Commercial and Agriculture [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	31
60-89 Days Past Due	4	72
90 Days or Greater	304	553
Total Past Due	308	656
Current	105,522	100,005
Total Loans	105,830	100,661
Past Due 90 Days and Accruing	'	'
Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	271	1,000
60-89 Days Past Due	653	533
90 Days or Greater	2,929	6,794
Total Past Due	3,853	8,327
Current	427,880	426,481
Total Loans	431,733	434,808
Past Due 90 Days and Accruing	'	80
Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	733	2,843
60-89 Days Past Due	393	1,214
90 Days or Greater	5,412	8,527
Total Past Due	6,538	12,584
Current	237,855	238,014
Total Loans	244,393	250,598
Past Due 90 Days and Accruing	'	'
Real Estate Construction [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	43
60-89 Days Past Due	'	'
90 Days or Greater	'	416
Total Past Due	'	459
Current	26,661	19,218
Total Loans	26,661	19,677
Past Due 90 Days and Accruing	'	'
Consumer [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	60	127
60-89 Days Past Due	8	20
90 Days or Greater	25	29
Total Past Due	93	176
Current	10,861	9,633
Total Loans	10,954	9,809
Past Due 90 Days and Accruing	'	'

Allowance_for_Loan_Losses_Summ

Allowance for Loan Losses - Summary of Nonaccrual Loans (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'
Total, Non-Accrual Status	$20,694	$29,855
Commercial and Agriculture [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total, Non-Accrual Status	1,599	2,869
Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total, Non-Accrual Status	9,562	16,250
Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total, Non-Accrual Status	9,458	9,701
Real Estate Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total, Non-Accrual Status	'	958
Consumer [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total, Non-Accrual Status	$75	$77

Allowance_for_Loan_Losses_Sche

Allowance for Loan Losses - Schedule of Troubled Debt Restructurings (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
	Contract	Contract	Contract	Contract
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'	'
Number of Contracts	1	4	2	35
Pre-Modification Outstanding Recorded Investment	$422	$601	$547	$3,505
Post-Modification Outstanding Recorded Investment	422	901	547	3,419
Commercial and Agriculture [Member]	'	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'	'
Number of Contracts	'	2	'	6
Pre-Modification Outstanding Recorded Investment	'	197	'	983
Post-Modification Outstanding Recorded Investment	'	497	'	976
Commercial Real Estate [Member]	'	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'	'
Number of Contracts	1	'	2	3
Pre-Modification Outstanding Recorded Investment	422	'	547	1,206
Post-Modification Outstanding Recorded Investment	422	'	547	1,206
Residential Real Estate [Member]	'	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'	'
Number of Contracts	'	1	'	21
Pre-Modification Outstanding Recorded Investment	'	385	'	1,250
Post-Modification Outstanding Recorded Investment	'	385	'	1,171
Real Estate Construction [Member]	'	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'	'
Number of Contracts	'	'	'	'
Pre-Modification Outstanding Recorded Investment	'	'	'	'
Post-Modification Outstanding Recorded Investment	'	'	'	'
Consumer and Other [Member]	'	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'	'
Number of Contracts	'	1	'	5
Pre-Modification Outstanding Recorded Investment	'	19	'	66
Post-Modification Outstanding Recorded Investment	'	$19	'	$66

Allowance_for_Loan_Losses_Impa

Allowance for Loan Losses - Impaired Financing Receivables (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
Impaired financing receivables, with no related allowance recorded, Recorded Investment	$9,596	'	$9,596	'	$13,066
Impaired financing receivables, with no related allowance recorded, Unpaid Principal Balance	12,694	'	12,694	'	19,208
Impaired financing receivables, with no related allowance recorded, Related Allowance	'	'	'	'	'
Impaired financing receivables, with an allowance recorded, Recorded Investment	8,183	'	8,183	'	13,024
Impaired financing receivables, with an allowance recorded, Unpaid Principal Balance	8,810	'	8,810	'	14,227
Impaired financing receivables, with an allowance recorded, Related Allowance	1,713	'	1,713	'	4,006
Impaired financing receivables, Recorded Investment, Total	17,779	'	17,779	'	26,090
Impaired financing receivables, Unpaid Principal Balance, Total	21,504	'	21,504	'	33,435
Impaired financing receivables, Related Allowance, Total	1,713	'	1,713	'	4,006
Impaired financing receivables, Average Recorded Investment, Total	20,775	27,703	23,048	26,878	'
Impaired financing receivables, Interest Income Recognized, Total	61	512	881	1,603	'
Commercial and Agriculture [Member]	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
Impaired financing receivables, with no related allowance recorded, Recorded Investment	1,206	'	1,206	'	5,053
Impaired financing receivables, with no related allowance recorded, Unpaid Principal Balance	1,326	'	1,326	'	5,226
Impaired financing receivables, with no related allowance recorded, Related Allowance	'	'	'	'	'
Impaired financing receivables, with an allowance recorded, Recorded Investment	2,714	'	2,714	'	367
Impaired financing receivables, with an allowance recorded, Unpaid Principal Balance	3,031	'	3,031	'	385
Impaired financing receivables, with an allowance recorded, Related Allowance	1,054	'	1,054	'	286
Impaired financing receivables, Recorded Investment, Total	3,920	'	3,920	'	5,420
Impaired financing receivables, Unpaid Principal Balance, Total	4,357	'	4,357	'	5,611
Impaired financing receivables, Related Allowance, Total	1,054	'	1,054	'	286
Impaired financing receivables, Average Recorded Investment, Total	4,504	5,366	4,984	4,631	'
Impaired financing receivables, Interest Income Recognized, Total	25	26	156	205	'
Commercial Real Estate [Member]	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
Impaired financing receivables, with no related allowance recorded, Recorded Investment	5,341	'	5,341	'	5,446
Impaired financing receivables, with no related allowance recorded, Unpaid Principal Balance	6,260	'	6,260	'	8,114
Impaired financing receivables, with no related allowance recorded, Related Allowance	'	'	'	'	'
Impaired financing receivables, with an allowance recorded, Recorded Investment	4,472	'	4,472	'	8,495
Impaired financing receivables, with an allowance recorded, Unpaid Principal Balance	4,755	'	4,755	'	8,681
Impaired financing receivables, with an allowance recorded, Related Allowance	454	'	454	'	2,354
Impaired financing receivables, Recorded Investment, Total	9,813	'	9,813	'	13,941
Impaired financing receivables, Unpaid Principal Balance, Total	11,015	'	11,015	'	16,795
Impaired financing receivables, Related Allowance, Total	454	'	454	'	2,354
Impaired financing receivables, Average Recorded Investment, Total	11,237	16,448	12,328	17,060	'
Impaired financing receivables, Interest Income Recognized, Total	29	329	438	995	'
Residential Real Estate [Member]	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
Impaired financing receivables, with no related allowance recorded, Recorded Investment	3,049	'	3,049	'	2,566
Impaired financing receivables, with no related allowance recorded, Unpaid Principal Balance	5,108	'	5,108	'	5,346
Impaired financing receivables, with no related allowance recorded, Related Allowance	'	'	'	'	'
Impaired financing receivables, with an allowance recorded, Recorded Investment	976	'	976	'	3,561
Impaired financing receivables, with an allowance recorded, Unpaid Principal Balance	1,003	'	1,003	'	4,554
Impaired financing receivables, with an allowance recorded, Related Allowance	204	'	204	'	1,199
Impaired financing receivables, Recorded Investment, Total	4,025	'	4,025	'	6,127
Impaired financing receivables, Unpaid Principal Balance, Total	6,111	'	6,111	'	9,900
Impaired financing receivables, Related Allowance, Total	204	'	204	'	1,199
Impaired financing receivables, Average Recorded Investment, Total	4,773	5,227	5,324	4,628	'
Impaired financing receivables, Interest Income Recognized, Total	18	145	287	391	'
Real Estate Construction [Member]	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
Impaired financing receivables, with no related allowance recorded, Unpaid Principal Balance	'	'	'	'	521
Impaired financing receivables, with no related allowance recorded, Related Allowance	'	'	'	'	'
Impaired financing receivables, with an allowance recorded, Recorded Investment	'	'	'	'	541
Impaired financing receivables, with an allowance recorded, Unpaid Principal Balance	'	'	'	'	547
Impaired financing receivables, with an allowance recorded, Related Allowance	'	'	'	'	107
Impaired financing receivables, Recorded Investment, Total	'	'	'	'	541
Impaired financing receivables, Unpaid Principal Balance, Total	'	'	'	'	1,068
Impaired financing receivables, Related Allowance, Total	'	'	'	'	107
Impaired financing receivables, Average Recorded Investment, Total	240	608	377	531	'
Impaired financing receivables, Interest Income Recognized, Total	-11	11	'	11	'
Consumer and Other [Member]	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
Impaired financing receivables, with no related allowance recorded, Recorded Investment	'	'	'	'	1
Impaired financing receivables, with no related allowance recorded, Unpaid Principal Balance	'	'	'	'	1
Impaired financing receivables, with no related allowance recorded, Related Allowance	'	'	'	'	'
Impaired financing receivables, with an allowance recorded, Recorded Investment	21	'	21	'	60
Impaired financing receivables, with an allowance recorded, Unpaid Principal Balance	21	'	21	'	60
Impaired financing receivables, with an allowance recorded, Related Allowance	1	'	1	'	60
Impaired financing receivables, Recorded Investment, Total	21	'	21	'	61
Impaired financing receivables, Unpaid Principal Balance, Total	21	'	21	'	61
Impaired financing receivables, Related Allowance, Total	1	'	1	'	60
Impaired financing receivables, Average Recorded Investment, Total	21	54	35	28	'
Impaired financing receivables, Interest Income Recognized, Total	'	$1	'	$1	'

Other_Comprehensive_Income_Cha

Other Comprehensive Income - Changes in Each Component of Accumulated Other Comprehensive Loss, Net of Tax (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement Of Income And Comprehensive Income [Abstract]	'	'	'	'
Unrealized Gains and Losses on Available- for-Sale Securities, Beginning balance	$1,662	'	$5,849	'
Unrealized Gains and Losses on Available- for-Sale Securities, Other comprehensive loss before reclassifications	-585	'	-4,734	'
Unrealized Gains and Losses on Available- for-Sale Securities, Amounts reclassified from accumulated other comprehensive loss	-53	'	-91	'
Unrealized Gains and Losses on Available- for-Sale Securities, Net current-period other comprehensive income (loss)	-638	'	-4,825	'
Unrealized Gains and Losses on Available- for-Sale Securities, Ending balance	1,024	'	1,024	'
Defined Benefit Pension Items, Beginning balance	-7,273	'	-7,496	'
Defined Benefit Pension Items, Other comprehensive loss before reclassifications	'	'	'	'
Defined Benefit Pension Items, Amounts reclassified from accumulated other comprehensive loss	119	'	342	'
Defined Benefit Pension Items, Net current-period other comprehensive income (loss)	119	'	342	'
Defined Benefit Pension Items, Ending balance	-7,154	'	-7,154	'
Beginning balance	-5,611	'	-1,647	'
Other comprehensive loss before reclassifications	-585	'	-4,734	'
Amounts reclassified from accumulated other comprehensive loss	66	'	251	'
Total other comprehensive income (loss)	-519	558	-4,483	1,059
Ending balance	($6,130)	'	($6,130)	'

Other_Comprehensive_Income_Amo

Other Comprehensive Income - Amounts Reclassified Out of Each Component of Accumulated Other Comprehensive Loss (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement Of Income And Comprehensive Income [Abstract]	'	'	'	'
Unrealized gains and losses on available-for-sale securities, Net gain on sale of securities	$80	'	$138	'
Unrealized gains and losses on available-for-sale securities, Total before tax	80	'	138	40
Unrealized gains and losses on available-for-sale securities, Tax effect	-27	'	-47	-14
Unrealized gains and losses on available-for-sale securities, Net of tax	53	'	91	'
Amortization of defined benefit pension items, Actuarial gains/(losses), Salaries, wages and benefits	-180	'	-518	'
Amortization of defined benefit pension items, Total before tax	-180	-90	-518	-270
Amortization of defined benefit pension items, Tax effect	61	31	176	92
Amortization of defined benefit pension items, Net of tax	-119	'	-342	'
Total reclassifications for the period, Net of tax	($66)	'	($251)	'

Earnings_per_Common_Share_Comp

Earnings per Common Share - Computation of Basic and Diluted Earnings per Common Share (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Basic	'	'	'	'
Net income	$1,566	$1,384	$5,136	$3,613
Preferred stock dividends and discount accretion	289	316	869	903
Net income available to common shareholders	1,277	1,068	4,267	2,710
Weighted average common shares outstanding	7,707,917	7,707,917	7,707,917	7,707,917
Basic earnings per common share	$0.17	$0.14	$0.55	$0.35
Diluted	'	'	'	'
Net income	1,566	1,384	5,136	3,613
Preferred stock dividends and discount accretion	289	316	869	903
Net income available to common shareholders	$1,277	$1,068	$4,267	$2,710
Weighted average common shares outstanding for basic earnings per common share	7,707,917	7,707,917	7,707,917	7,707,917
Add: Dilutive effects of assumed exercises of stock options and warrants	'	'	'	'
Average shares and dilutive potential common shares outstanding	7,707,917	7,707,917	7,707,917	7,707,917
Diluted earnings per common share	$0.17	$0.14	$0.55	$0.35

Earnings_per_Common_Share_Addi

Earnings per Common Share - Additional Information (Detail) (USD $)	9 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2012
		Equity Option [Member]	Equity Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'
Anti-dilutive securities excluded from computation of earnings per share	0	10,000	10,000
Exercise price of stock options not considered in computing diluted earnings per common share	'	$35	$35
Dilutive securities	0	'	'

Commitments_Contingencies_and_2

Commitments, Contingencies and Off-Balance-Sheet Risk - Contractual Amount of Financial Instruments with Off-Balance-Sheet Risk (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'
Fixed Rate	$6,849	$9,723
Variable Rate	182,354	138,304
Lines of Credit and Construction Loans [Member]	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'
Fixed Rate	6,618	9,378
Variable Rate	159,489	118,182
Overdraft Protection [Member]	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'
Fixed Rate	31	51
Variable Rate	20,629	19,726
Letters of Credit [Member]	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'
Fixed Rate	200	294
Variable Rate	$2,236	$396

Commitments_Contingencies_and_3

Commitments, Contingencies and Off-Balance-Sheet Risk - Additional Information (Detail) (USD $)	9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'
Maximum period of commitments to make loans	'1 year	'
Maximum time period of maturities	'30 years	'
Average reserve balance under Federal Reserve Board requirements	$1,753	$1,217
Minimum [Member]	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'
Range of fixed interest rate loan commitments	3.05%	3.05%
Maximum [Member]	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'
Range of fixed interest rate loan commitments	13.75%	13.75%

Pension_Information_Components

Pension Information - Components of Net Periodic Pension Expense (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Compensation And Retirement Disclosure [Abstract]	'	'	'	'
Service cost	$310	$235	$893	$704
Interest cost	228	229	656	686
Expected return on plan assets	-249	-215	-716	-644
Other components	180	90	518	270
Net periodic pension cost	$469	$339	$1,351	$1,016

Pension_Information_Additional

Pension Information - Additional Information (Detail) (USD $)	9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Compensation And Retirement Disclosure [Abstract]	'	'
Expected future employer contributions	$1,900	'
Employer contributions	'	$1,510

Stock_Options_Additional_Infor

Stock Options - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Option term maximum period	'10 years
Option term minimum period	'3 years
Corporation's Stock Option Plan [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Maximum number of shares under stock option plan authorized for issuance	225,000

Stock_Options_Summary_of_Activ

Stock Options - Summary of Activity in Stock Option Plan (Detail) (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'	'
Shares, Outstanding at beginning of period	10,000	29,500
Shares, Granted	'	'
Shares, Exercised	'	'
Shares, Forfeited	'	'
Shares, Expired	-10,000	-19,500
Shares, Options outstanding, end of period	'	10,000
Shares, Options exercisable, end of period	'	10,000
Weighted Average Exercise Price Per Share, Outstanding at beginning of period	$35	$25.42
Weighted Average Exercise Price Per Share, Granted	'	'
Weighted Average Exercise Price Per Share, Exercised	'	'
Weighted Average Exercise Price Per Share, Forfeited	'	'
Weighted Average Exercise Price, Expired	$35	$20.50
Weighted Average Exercise Price Per Share, Options outstanding, end of period	'	$35
Weighted Average Exercise Price, Options exercisable, end of period	'	$35

Fair_Value_Measurement_Assets_

Fair Value Measurement - Assets Measured at Fair Value (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
(Level 1) [Member] | Assets Measured at Fair Value on a Recurring Basis [Member] | U.S. Treasury Securities and Obligations of U.S. Government Agencies [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets	'	'
(Level 1) [Member] | Assets Measured at Fair Value on a Recurring Basis [Member] | Obligations of States and Political Subdivisions [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets	'	'
(Level 1) [Member] | Assets Measured at Fair Value on a Recurring Basis [Member] | Mortgage-backed Securities in Government Sponsored Entities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets	'	'
(Level 1) [Member] | Assets Measured at Fair Value on a Recurring Basis [Member] | Equity Securities in Financial Institutions [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets	'	'
(Level 1) [Member] | Assets Measured at Fair Value on a Nonrecurring Basis [Member] | Impaired Loans [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets	'	'
(Level 1) [Member] | Assets Measured at Fair Value on a Nonrecurring Basis [Member] | Other Real Estate Owned [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets	'	'
(Level 2) [Member] | Assets Measured at Fair Value on a Recurring Basis [Member] | U.S. Treasury Securities and Obligations of U.S. Government Agencies [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets	53,964	54,286
(Level 2) [Member] | Assets Measured at Fair Value on a Recurring Basis [Member] | Obligations of States and Political Subdivisions [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets	81,475	79,338
(Level 2) [Member] | Assets Measured at Fair Value on a Recurring Basis [Member] | Mortgage-backed Securities in Government Sponsored Entities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets	64,484	69,435
(Level 2) [Member] | Assets Measured at Fair Value on a Recurring Basis [Member] | Equity Securities in Financial Institutions [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets	433	434
(Level 2) [Member] | Assets Measured at Fair Value on a Nonrecurring Basis [Member] | Impaired Loans [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets	'	'
(Level 2) [Member] | Assets Measured at Fair Value on a Nonrecurring Basis [Member] | Other Real Estate Owned [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets	'	'
(Level 3) [Member] | Assets Measured at Fair Value on a Recurring Basis [Member] | U.S. Treasury Securities and Obligations of U.S. Government Agencies [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets	'	'
(Level 3) [Member] | Assets Measured at Fair Value on a Recurring Basis [Member] | Obligations of States and Political Subdivisions [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets	'	468
(Level 3) [Member] | Assets Measured at Fair Value on a Recurring Basis [Member] | Mortgage-backed Securities in Government Sponsored Entities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets	'	'
(Level 3) [Member] | Assets Measured at Fair Value on a Recurring Basis [Member] | Equity Securities in Financial Institutions [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets	'	'
(Level 3) [Member] | Assets Measured at Fair Value on a Nonrecurring Basis [Member] | Impaired Loans [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets	16,066	22,084
(Level 3) [Member] | Assets Measured at Fair Value on a Nonrecurring Basis [Member] | Other Real Estate Owned [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets	$158	$471

Fair_Value_Measurement_Quantit

Fair Value Measurement - Quantitative Information about Level 3 Fair Value Measurements (Detail) (USD $)	9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Impaired Loans [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Fair Value Estimate	16,066	22,084
Impaired Loans [Member] | Appraisal of Collateral [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Fair Value Measurements, Valuation Technique	'Appraisal of collateral	'Appraisal of collateral
Impaired Loans [Member] | Discounted Cash Flows [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Fair Value Measurements, Valuation Technique	'Discounted cash flows	'Discounted cash flows
Other Real Estate Owned [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Fair Value Estimate	158	471
Other Real Estate Owned [Member] | Appraisal of Collateral [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Fair Value Measurements, Valuation Technique	'Appraisal of collateral	'Appraisal of collateral
Obligations of States and Political Subdivisions [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Fair Value Estimate	'	468
Obligations of States and Political Subdivisions [Member] | Appraisal of Collateral [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Fair Value Measurements, Valuation Technique	'	'Appraisal of collateral
Maximum [Member] | Impaired Loans [Member] | Appraisal of Collateral [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Fair Value Assumptions, Appraisal adjustments	30.00%	30.00%
Fair Value Assumptions, Liquidation expense	10.00%	10.00%
Fair Value Assumptions, Holding period	'30 months	'30 months
Maximum [Member] | Impaired Loans [Member] | Discounted Cash Flows [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Fair Value Assumptions, Discount rates	8.30%	8.50%
Maximum [Member] | Other Real Estate Owned [Member] | Appraisal of Collateral [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Fair Value Assumptions, Appraisal adjustments	30.00%	30.00%
Fair Value Assumptions, Liquidation expense	10.00%	10.00%
Maximum [Member] | Obligations of States and Political Subdivisions [Member] | Appraisal of Collateral [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Fair Value Assumptions, Appraisal adjustments	'	30.00%
Fair Value Assumptions, Liquidation expense	'	12.00%
Minimum [Member] | Impaired Loans [Member] | Appraisal of Collateral [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Fair Value Assumptions, Appraisal adjustments	10.00%	10.00%
Fair Value Assumptions, Liquidation expense	0.00%	0.00%
Fair Value Assumptions, Holding period	'0 months	'0 months
Minimum [Member] | Impaired Loans [Member] | Discounted Cash Flows [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Fair Value Assumptions, Discount rates	3.80%	2.00%
Minimum [Member] | Other Real Estate Owned [Member] | Appraisal of Collateral [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Fair Value Assumptions, Appraisal adjustments	10.00%	10.00%
Fair Value Assumptions, Liquidation expense	0.00%	0.00%
Minimum [Member] | Obligations of States and Political Subdivisions [Member] | Appraisal of Collateral [Member]	'	'
Fair Value, Option, Quantitative Disclosures [Line Items]	'	'
Fair Value Assumptions, Appraisal adjustments	'	20.00%
Fair Value Assumptions, Liquidation expense	'	8.00%

Fair_Value_Measurement_Summary

Fair Value Measurement - Summary of Changes in Level 3 Fair-Value Category in Securities Available for Sale (Detail) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
Securities available for sale	'
Beginning balance	$468
Settlements	-468
Ending balance	'

Fair_Value_Measurement_Carryin

Fair Value Measurement - Carrying Amount and Estimated Fair Values of Financial Instruments (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financial Assets:	'	'
Securities available for sale	$200,356	$203,961
Carrying Amount [Member]	'	'
Financial Assets:	'	'
Cash and due from financial institutions	50,093	46,131
Securities available for sale	200,356	203,961
Other securities	15,433	15,567
Loans, available for sale	4,891	1,873
Loans, net of allowance for loan losses	802,274	795,811
Bank owned life insurance	19,013	18,590
Accrued interest receivable	4,540	3,709
Mortgage servicing rights	454	308
Financial Liabilities:	'	'
Nonmaturing deposits	702,215	662,387
Time deposits	240,243	264,002
Federal Home Loan Bank advances	37,735	40,261
Securities sold under agreement to repurchase	20,810	23,219
Subordinated debentures	29,427	29,427
Accrued interest payable	159	185
Total Fair Value [Member]	'	'
Financial Assets:	'	'
Cash and due from financial institutions	50,093	46,131
Securities available for sale	200,356	203,961
Other securities	15,433	15,567
Loans, available for sale	4,891	1,873
Loans, net of allowance for loan losses	821,717	812,950
Bank owned life insurance	19,013	18,590
Accrued interest receivable	4,540	3,709
Mortgage servicing rights	454	308
Financial Liabilities:	'	'
Nonmaturing deposits	702,215	662,387
Time deposits	242,067	265,974
Federal Home Loan Bank advances	38,710	41,658
Securities sold under agreement to repurchase	20,810	23,219
Subordinated debentures	21,412	26,855
Accrued interest payable	159	185
(Level 1) [Member]	'	'
Financial Assets:	'	'
Cash and due from financial institutions	50,093	46,131
Securities available for sale	'	'
Other securities	15,433	15,567
Loans, available for sale	4,891	1,873
Loans, net of allowance for loan losses	'	'
Bank owned life insurance	19,013	18,590
Accrued interest receivable	4,540	3,709
Mortgage servicing rights	'	'
Financial Liabilities:	'	'
Nonmaturing deposits	702,215	662,387
Time deposits	'	'
Federal Home Loan Bank advances	'	'
Securities sold under agreement to repurchase	20,810	23,219
Subordinated debentures	'	'
Accrued interest payable	159	185
(Level 2) [Member]	'	'
Financial Assets:	'	'
Cash and due from financial institutions	'	'
Securities available for sale	200,356	203,493
Other securities	'	'
Loans, available for sale	'	'
Loans, net of allowance for loan losses	'	'
Bank owned life insurance	'	'
Accrued interest receivable	'	'
Mortgage servicing rights	'	'
Financial Liabilities:	'	'
Nonmaturing deposits	'	'
Time deposits	'	'
Federal Home Loan Bank advances	'	'
Securities sold under agreement to repurchase	'	'
Subordinated debentures	'	'
Accrued interest payable	'	'
(Level 3) [Member]	'	'
Financial Assets:	'	'
Cash and due from financial institutions	'	'
Securities available for sale	'	468
Other securities	'	'
Loans, available for sale	'	'
Loans, net of allowance for loan losses	821,717	812,950
Bank owned life insurance	'	'
Accrued interest receivable	'	'
Mortgage servicing rights	454	308
Financial Liabilities:	'	'
Nonmaturing deposits	'	'
Time deposits	242,067	265,974
Federal Home Loan Bank advances	38,710	41,658
Securities sold under agreement to repurchase	'	'
Subordinated debentures	21,412	26,855
Accrued interest payable	'	'

Fair_Value_Measurement_Additio

Fair Value Measurement - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Number of days original maturities due from financial institutions	'Less than 90
Receiving / paying days of carrying amounts for accrued interest receivable, accrued interest payable and securities sold under agreements to repurchase	'90 days or less

Participation_in_the_US_Treasu1

Participation in the U.S. Treasury Troubled Asset Relief Program - Additional Information (Detail) (USD $)	1 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Jul. 03, 2012	Jan. 23, 2009	Sep. 30, 2013	Sep. 05, 2012
Equity [Abstract]	'	'	'	'
Sale to U.S. Treasury of newly-issued non-voting preferred shares	'	23,184	'	'
Liquidation preference as per securities purchase agreement	'	$1,000	'	'
Warrant sold to purchase common shares as per securities purchase agreement	'	469,312	'	'
Warrant exercise price per common share	'	7.41	'	'
Term of Warrant	'	'	'10 years	'
Cumulative dividend rate per annum on liquidation preference, first five years	'	'	5.00%	'
Cumulative dividend rate per annum on liquidation preference, after five years	'	'	9.00%	'
Sale of Preferred Shares to investors	23,184	'	'	'
Aggregate purchase price of warrant	'	'	'	$563