CNB Financial (CCNE) 10-Q 7 Nov 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Nov. 04, 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	'CNB FINANCIAL CORP/PA	'
Entity Central Index Key	'0000736772	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	14,388,078

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
ASSETS	'	'
Cash and due from banks	$28,756	$28,570
Interest bearing deposits with other banks	4,100	3,311
Total cash and cash equivalents	32,856	31,881
Interest bearing time deposits with other banks	275	225
Securities available for sale	700,531	737,311
Trading securities	4,358	4,459
Loans held for sale	399	2,398
Loans	1,032,875	931,225
Less: unearned discount	-3,904	-3,401
Less: allowance for loan losses	-17,221	-14,060
Net loans	1,011,750	913,764
FHLB and other equity interests	7,580	6,684
Premises and equipment, net	26,042	24,072
Bank owned life insurance	29,739	27,645
Mortgage servicing rights	696	714
Goodwill	10,946	10,946
Accrued interest receivable and other assets	12,247	12,980
TOTAL	1,837,419	1,773,079
LIABILITIES AND SHAREHOLDERS' EQUITY	'	'
Non-interest bearing deposits	189,362	175,239
Interest bearing deposits	1,362,919	1,309,764
Total deposits	1,552,281	1,485,003
FHLB and other borrowings	122,976	97,806
Subordinated debentures	20,620	20,620
Accrued interest payable and other liabilities	10,776	24,286
Total liabilities	1,706,653	1,627,715
Common stock, $0 par value; authorized 50,000,000 shares; issued 12,599,603 shares	0	0
Additional paid in capital	44,065	44,223
Retained earnings	94,718	88,960
Treasury stock, at cost (85,465 shares at September 30, 2013 and 123,699 shares at December 31, 2012)	-1,179	-1,743
Accumulated other comprehensive income (loss)	-6,838	13,924
Total shareholders' equity	130,766	145,364
TOTAL	$1,837,419	$1,773,079

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Statement Of Financial Position [Abstract]	'	'
Common stock, par value	$0	$0
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	12,599,603	12,599,603
Treasury stock, shares	85,465	123,699

Consolidated_Statements_of_Inc

Consolidated Statements of Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
INTEREST AND DIVIDEND INCOME:	'	'	'	'
Loans including fees	$13,153	$12,574	$37,736	$37,223
Securities:	'	'	'	'
Taxable	3,283	3,651	10,166	11,226
Tax-exempt	969	892	2,891	2,668
Dividends	60	16	134	47
Total interest and dividend income	17,465	17,133	50,927	51,164
INTEREST EXPENSE:	'	'	'	'
Deposits	1,673	2,424	5,862	8,519
Borrowed funds	949	834	2,557	2,418
Subordinated debentures (includes $102 and $98 for three months ended and $304 and $290 for nine months ended accumulated other comprehensive income reclassification for change in fair value of interest rate swap agreements in 2013 and 2012, respectively)	195	205	583	606
Total interest expense	2,817	3,463	9,002	11,543
NET INTEREST INCOME	14,648	13,670	41,925	39,621
PROVISION FOR LOAN LOSSES	846	1,188	4,891	4,038
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	13,802	12,482	37,034	35,583
NON-INTEREST INCOME:	'	'	'	'
Wealth and asset management fees	615	498	1,727	1,311
Service charges on deposit accounts	1,102	1,049	3,063	3,020
Other service charges and fees	607	467	1,561	1,367
Net realized gains on available-for-sale securities (includes $103 for three months ended 2012 and $328 and $1,400 for nine months ended accumulated other comprehensive income reclassifications for net realized gains on available-for-sale securities in 2013 and 2012, respectively)	0	103	328	1,400
Net realized and unrealized gains on trading securities	166	275	497	455
Mortgage banking	107	225	633	686
Bank owned life insurance	365	229	1,442	752
Other	286	233	839	767
Total non-interest income	3,248	3,079	10,090	9,758
NON-INTEREST EXPENSES:	'	'	'	'
Salaries and benefits	5,288	4,831	15,817	14,175
Net occupancy expense	1,234	1,138	3,832	3,394
Data processing	890	700	2,455	2,118
State and local taxes	391	369	1,266	1,098
Legal, professional, and examination fees	313	411	966	968
Advertising	205	250	697	750
FDIC insurance premiums	332	283	930	816
Merger costs	398	0	1,329	0
Other	1,292	1,226	3,526	3,736
Total non-interest expenses	10,343	9,208	30,818	27,055
INCOME BEFORE INCOME TAXES	6,707	6,353	16,306	18,286
INCOME TAX EXPENSE (includes ($36) and $2 for three months ended and $8 and $389 for nine months ended income tax expense from reclassification items in 2013 and 2012, respectively	2,004	1,790	4,355	5,040
NET INCOME	$4,703	$4,563	$11,951	$13,246
EARNINGS PER SHARE:	'	'	'	'
Basic	$0.38	$0.37	$0.96	$1.07
Diluted	$0.38	$0.37	$0.96	$1.06
DIVIDENDS PER SHARE:	'	'	'	'
Cash dividends per share	$0.17	$0.17	$0.50	$0.50

Consolidated_Statements_of_Inc1

Consolidated Statements of Income (Parenthetical) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Statement [Abstract]	'	'	'	'
Accumulated other comprehensive income reclassification for change in fair value of interest rate swap agreements	$102	$98	$304	$290
Accumulated other comprehensive income reclassifications for net realized gains on available-for-sale securities	'	103	328	1,400
Income tax expense from reclassification	($36)	$2	$8	$389

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Loss) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Amounts Reclassified Out Of Accumulated Other Comprehensive Income Loss [Abstract]	'	'	'	'
NET INCOME	$4,703	$4,563	$11,951	$13,246
Net change in fair value of interest rate swap agreements designated as cash flow hedges:	'	'	'	'
Unrealized gain (loss) on interest rate swaps, net of tax of $31 and $58 for the three months ended September 30, 2013 and 2012, and ($69) and $164 for the nine months ended September 30, 2013 and 2012	-58	-108	129	-305
Reclassification adjustment for losses recognized in earnings, net of tax of ($36) and ($34) for the three months ended September 30, 2013 and 2012, and ($106) and ($101) for the nine months ended September 30, 2013 and 2012	66	64	198	189
Other comprehensive loss, net of tax	8	-44	327	-116
Unrealized gains (losses) on other-than-temporarily impaired securities available for sale:	'	'	'	'
Unrealized gains arising during the period, net of tax of ($51) for the three months ended September 30, 2013, and ($62) and ($7) for the nine months ended September 30, 2013 and 2012	95	0	114	13
Unrealized gains (losses) on other securities available for sale:	'	'	'	'
Unrealized gains (losses) arising during the period, net of tax of $1,676 and ($611) for the three months ended September 30, 2013 and 2012, and $11,302 and ($2,419) for the nine months ended September 30, 2013 and 2012	-3,113	1,134	-20,990	4,493
Reclassification adjustment for realized gains included in net income, net of tax of $36 for the three months ended September 30, 2012, and $115 and $490 for the nine months ended September 30, 2013 and 2012	0	-67	-213	-910
Unrealized losses on other securities available for sale net of reclassification adjustment for realized gains included in net income	-3,113	1,067	-21,203	3,583
Other comprehensive income (loss)	-3,010	1,023	-20,762	3,480
COMPREHENSIVE INCOME (LOSS)	$1,693	$5,586	($8,811)	$16,726

Consolidated_Statements_of_Com1

Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Amounts Reclassified Out Of Accumulated Other Comprehensive Income Loss [Abstract]	'	'	'	'
Unrealized gain (loss) on interest rate swaps, net of tax	$31	$58	($69)	$164
Reclassification adjustment for losses recognized in earnings, net of tax	-36	-34	-106	-101
Unrealized gains on other-than-temporarily impaired securities available for sale arising during the period, net of tax	-51	'	-62	-7
Unrealized gains (losses) on other securities available for sale arising during the period, net of tax	1,676	-611	11,302	-2,419
Reclassification adjustment for realized gains included in net income, net of tax	'	$36	$115	$490

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:	'	'
NET INCOME	$11,951	$13,246
Adjustments to reconcile net income to net cash provided by operations:	'	'
PROVISION FOR LOAN LOSSES	4,891	4,038
Depreciation and amortization of premises and equipment	1,632	1,582
Amortization and accretion of securities premiums and discounts, deferred loan fees and costs, and unearned income	2,756	3,353
Net realized gains on sales of available-for-sale securities	-328	-1,400
Net realized and unrealized gains on trading securities	-497	-455
Proceeds from sale of trading securities	4,424	2,625
Purchase of trading securities	-3,803	-2,699
Gain on sale of loans	-556	-640
Net gains on dispositions of premises and equipment and foreclosed assets	-151	-120
Proceeds from sale of loans	19,889	21,674
Origination of loans held for sale	-17,484	-23,524
Income on bank owned life insurance	-1,442	-752
Stock-based compensation expense	290	205
Contribution of treasury stock	90	90
Changes in:	'	'
Accrued interest receivable and other assets	-3,606	-1,998
Accrued interest payable and other liabilities	-1,941	710
NET CASH PROVIDED BY OPERATING ACTIVITIES	16,115	15,935
CASH FLOWS FROM INVESTING ACTIVITIES:	'	'
Net decrease in interest bearing time deposits with other banks	-50	-1
Proceeds from maturities, prepayments and calls of securities	86,708	82,288
Proceeds from sales of securities	33,672	92,707
Purchase of securities	-114,748	-252,561
Loan origination and payments, net	-102,600	-62,860
Purchase of bank owned life insurance	-2,000	-1,000
Proceeds from death benefits associated with bank owned life insurance	1,348	0
Acquisition of consumer discount company	0	-1,248
Purchase of FHLB and other equity interests	-896	-218
Purchase of premises and equipment	-3,434	-1,711
Proceeds from the sale of premises and equipment and foreclosed assets	579	867
NET CASH USED IN INVESTING ACTIVITIES	-101,421	-143,737
Net change in:	'	'
Checking, money market and savings accounts	93,805	174,031
Certificates of deposit	-26,527	-47,612
Proceeds from sale of treasury stock	2	528
Proceeds from exercise of stock options	24	374
Cash dividends paid	-6,193	-6,156
Proceeds from long-term borrowings	900	0
Repayment of long-term borrowings	-145	-120
Net change in short-term borrowings	24,415	0
NET CASH PROVIDED BY FINANCING ACTIVITIES	86,281	121,045
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	975	-6,757
CASH AND CASH EQUIVALENTS, Beginning	31,881	39,703
CASH AND CASH EQUIVALENTS, Ending	32,856	32,946
Cash paid during the period for:	'	'
Interest	9,134	11,807
Income taxes	3,646	5,418
SUPPLEMENTAL NONCASH DISCLOSURES:	'	'
Transfers to other real estate owned	333	680
Grant of restricted stock awards from treasury stock	539	419
Contribution of treasury stock	$90	$90

Basis_of_Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Basis of Presentation	'
	1	BASIS OF PRESENTATION
	The accompanying consolidated financial statements have been prepared pursuant to rules and regulations of the Securities and Exchange Commission (“SEC”) and in compliance with accounting principles generally accepted in the United States of America (“GAAP”). Because this report is based on an interim period, certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted.
	In the opinion of management of the registrant, the accompanying consolidated financial statements as of September 30, 2013 and for the three and nine month periods ended September 30, 2013 and 2012 include all adjustments, consisting of only normal recurring adjustments, necessary for a fair presentation of the financial condition and the results of operations for the periods presented. The financial performance reported for CNB Financial Corporation (the “Corporation”) for the three and nine month periods ended September 30, 2013 is not necessarily indicative of the results to be expected for the full year. This information should be read in conjunction with the Corporation’s Annual Report on Form 10-K for the period ended December 31, 2012 (the “2012 Form 10-K”). All dollar amounts are stated in thousands, except share and per share data and other amounts as indicated.

Subsequent_Event_Acquisition_o

Subsequent Event - Acquisition of FC Banc Corp.	9 Months Ended
	Sep. 30, 2013
Business Combinations [Abstract]	'
Subsequent Event - Acquisition of FC Banc Corp.	'
	2	SUBSEQUENT EVENT - ACQUISITION OF FC BANC CORP.
	In the first quarter of 2013, the Corporation announced the signing of a definitive merger agreement to acquire 100% of the outstanding equity interests of FC Banc Corp. and its subsidiary, The Farmers Citizens Bank (“FC Bank”), for $30.00 per share in cash and stock. FC Bank serves the northern Ohio markets of Bucyrus, Cardington, Fredericktown, Mount Hope and Shiloh, as well as the markets of Worthington and Upper Arlington in the greater Columbus, Ohio area, with 8 branch locations. The transaction closed on October 11, 2013 and resulted in consideration paid to FC Banc Corp. shareholders totaling approximately $41.6 million, comprised of approximately $8.0 million in cash and 1,873,879 shares of the Corporation’s common stock valued at approximately $33.6 million based on the October 11, 2013 closing price of $17.91 per share.
	The Corporation’s management and board of directors have periodically conducted strategic reviews as part of their ongoing efforts to improve the Corporation’s banking franchise and enhance shareholder value. In connection with these strategic reviews, the Corporation has considered potential acquisition targets, including banking institutions in Ohio. On March 26, 2013, the Corporation’s board of directors unanimously approved the merger transaction with FC Banc Corp. and authorized the Corporation’s management to execute and deliver the merger agreement.
	As disclosed in the accompanying consolidated statements of income, the Corporation incurred merger costs of $398 thousand and $1.3 million for the three and nine months ended September 30, 2013. All merger costs have been expensed as incurred.
	As of the date that the Corporation’s third quarter 2013 consolidated financial statements are issued, all of the information required to be disclosed by Accounting Standards Codification No. 805 was not available since, given the short period between the October 11, 2013 acquisition date and the financial statement issuance, the calculation of the fair value of all material FC Banc Corp. assets acquired and liabilities assumed had not yet been completed.

Stock_Compensation

Stock Compensation	9 Months Ended
	Sep. 30, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Stock Compensation	'
	3	STOCK COMPENSATION
	The Corporation has a stock incentive plan for key employees and independent directors. The stock incentive plan, which is administered by a committee of the Board of Directors, provides for aggregate grants of up to 500,000 shares of common stock in the form of nonqualified options or restricted stock. For key employees, the plan vesting is one-fourth of the granted options or restricted stock per year beginning one year after the grant date, with 100% vested on the fourth anniversary of the grant. For independent directors, the vesting schedule is one-third of the granted options per year beginning one year after the grant date, with 100% vested on the third anniversary of the grant.
	At September 30, 2013, there was no unrecognized compensation cost related to nonvested stock options granted under this plan and no stock options were granted during the three or nine month periods ended September 30, 2013 and 2012. At September 30, 2013 and December 31, 2012, the Corporation had 74,203 and 75,500 stock options, respectively, that were fully vested and exercisable.
	Compensation expense for the restricted stock awards is recognized over the requisite service period noted above based on the fair value of the shares at the date of grant. Nonvested restricted stock awards are recorded as a reduction of additional paid-in-capital in shareholders’ equity until earned. Compensation expense resulting from these restricted stock awards was $104 and $290 for the three and nine months ended September 30, 2013, and $73 and $205 for the three and nine months ended September 30, 2012. As of September 30, 2013, there was $784 of total unrecognized compensation cost related to unvested restricted stock awards.
	A summary of changes in nonvested restricted stock awards for the three months ended September 30, 2013 follows:
						Per Share
						Weighted Average
			Shares			Grant Date Fair Value
	Nonvested at beginning of period			65,400		$	16.24
	Granted			0			0
	Vested			(200	)		15.29
	Nonvested at end of period			65,200		$	16.24
	A summary of changes in nonvested restricted stock awards for the nine months ended September 30, 2013 follows:
						Per Share
						Weighted Average
			Shares			Grant Date Fair Value
	Nonvested at beginning of period			49,574		$	15.37
	Granted			31,500			17.1
	Vested			(15,874	)		15.23
	Nonvested at end of period			65,200		$	16.24

Fair_Value

Fair Value	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Fair Value	'
	4	FAIR VALUE
	Fair Value Measurement
	Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. A fair value hierarchy has also been established which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The following three levels of inputs are used to measure fair value:
	Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date.
	Level 2: Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.
	Level 3: Significant unobservable inputs that reflect a company’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.
	The fair values of most trading securities and securities available for sale are determined by obtaining quoted prices on nationally recognized securities exchanges (Level 1 inputs) or 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 relying on the securities’ relationship to other benchmark quoted securities (Level 2 inputs). The fair value of one corporate bond held by the Corporation has been determined by using Level 3 inputs. The Corporation has engaged a valuation expert to price this security using a proprietary model which incorporates assumptions about certain factors that market participants would use in pricing the securities, including bid/ask spreads and liquidity and credit premiums.
	The Corporation’s structured pooled trust preferred security is priced using Level 3 inputs. The decline in the level of observable inputs and market activity in this class of investments by the measurement date has been significant and resulted in unreliable external pricing. Broker pricing and bid/ask spreads, when available, vary widely, and the once-active market has become comparatively inactive. The Corporation engaged a third party consultant who has developed a model for pricing this security. Information such as historical and current performance of the underlying collateral, deferral and default rates, collateral coverage ratios, break in yield calculations, cash flow projections, liquidity and credit premiums required by a market participant, and financial trend analysis with respect to the individual issuing financial institutions and insurance companies are utilized in determining the security valuation. Due to the current market conditions as well as the limited trading activity of these types of securities, the market value of the Corporation’s structured pooled trust preferred security is highly sensitive to assumption changes and market volatility.
	The Corporation’s derivative instrument is an interest rate swap that is similar to those that trade in liquid markets. As such, significant fair value inputs can generally be verified and do not typically involve significant management judgments (Level 2 inputs).
	Assets and liabilities measured at fair value on a recurring basis are as follows at September 30, 2013 and December 31, 2012:
						Fair Value Measurements at September 30, 2013 Using
	Description		Total			Quoted Prices in			Significant Other			Significant
						Active Markets for			Observable			Unobservable
						Identical Assets			Inputs (Level 2)			Inputs
						(Level 1)						(Level 3)
	Assets:
	Securities Available For Sale:
	U.S. Treasury		$	2,007		$	0		$	2,007		$	0
	U.S. Government sponsored entities			177,230			0			177,230			0
	States and political subdivisions			179,863			0			179,863			0
	Residential and multi-family mortgage			255,039			0			255,039			0
	Commercial mortgage			950			0			950			0
	Corporate notes and bonds			14,157			0			14,157			0
	Pooled trust preferred			776			0			0			776
	Pooled SBA			69,513			69,513			0			0
	Other securities			996			996			0			0
	Total Securities Available For Sale		$	700,531		$	70,509		$	629,246		$	776
	Trading Securities:
	Corporate equity securities		$	2,998		$	2,998		$	0		$	0
	Certificates of deposit			253			253			0			0
	International mutual funds			257			257			0			0
	Large cap growth mutual funds			182			182			0			0
	Large cap value mutual funds			121			121			0			0
	Real estate investment trust mutual funds			40			40			0			0
	Corporate notes and bonds			152			0			152			0
	Mid cap mutual funds			81			81			0			0
	Small cap mutual funds			81			81			0			0
	U.S. Government sponsored entities			53			0			53			0
	Commodities mutual funds			54			54			0			0
	Money market mutual funds			86			86			0			0
	Total Trading Securities		$	4,358		$	4,153		$	205		$	0
	Liabilities:
	Interest rate swaps		$	(1,241	)	$	0		$	(1,241	)	$	0
						Fair Value Measurements at December 31, 2012 Using
	Description		Total			Quoted Prices in			Significant Other			Significant
						Active Markets for			Observable Inputs			Unobservable
						Identical Assets			(Level 2)			Inputs
						(Level 1)						(Level 3)
	Assets:
	Securities Available For Sale:
	U.S. Treasury		$	4,036		$	0		$	4,036		$	0
	U.S. Government sponsored entities			163,781			0			163,781			0
	States and political subdivisions			181,279			0			181,279			0
	Residential and multi-family mortgage			316,822			0			316,822			0
	Commercial mortgage			1,304			0			1,304			0
	Corporate notes and bonds			15,024			0			13,044			1,980
	Pooled trust preferred			600			0			0			600
	Pooled SBA			52,927			52,631			296			0
	Other securities			1,538			1,538			0			0
	Total Securities Available For Sale		$	737,311		$	54,169		$	680,562		$	2,580
	Trading Securities:
	Corporate equity securities		$	3,117		$	3,117		$	0		$	0
	Certificates of deposit			408			408			0			0
International mutual funds			287			287			0			0
Large cap growth mutual funds			157			157			0			0
Money market mutual funds			110			110			0			0
Large cap value mutual funds			104			104			0			0
Corporate notes and bonds			101			0			101			0
Real estate investment trust mutual funds			65			65			0			0
U.S. Government sponsored entities			58			0			58			0
Small cap mutual funds			26			26			0			0
Mid cap mutual funds			26			26			0			0
Total Trading Securities		$	4,459		$	4,300		$	159		$	0
Liabilities:
Interest rate swaps		$	(1,745	)	$	0		$	(1,745	)	$	0
The table below presents a reconciliation and income statement classification of gains and losses for all securities available for sale measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three months ended September 30, 2013:
		Pooled
		trust
		preferred
Balance, July 1, 2013		$	630
Total gains or (losses):
Included in other comprehensive income			146
Included in realized gains on available-for-sale securities			0
Sale of available-for-sale securities			0
Balance, September 30, 2013		$	776
The table below presents a reconciliation and income statement classification of gains and losses for all securities available for sale measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the nine months ended September 30, 2013:
		Corporate			Pooled
		notes and			trust
		bonds			preferred
Balance, January 1, 2013		$	1,980		$	600
Total gains or (losses):
Included in other comprehensive income			(29	)		176
Included in realized gains on available-for-sale securities			58			0
Sale of available-for-sale securities			(2,009	)		0
Balance, September 30, 2013		$	0		$	776
The table below presents a reconciliation and income statement classification of gains and losses for all securities available for sale measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three months ended September 30, 2012:
		Corporate			Pooled
		notes and			trust
		bonds			preferred
Balance, July 1, 2012		$	2,071		$	360
Total gains or losses:
Included in other comprehensive income (unrealized)			(86	)		0
Balance, September 30, 2012		$	1,985		$	360
The table below presents a reconciliation and income statement classification of gains and losses for all securities available for sale measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the nine months ended September 30, 2012:
		Corporate			Pooled
		notes and			trust
		bonds			preferred
Balance, January 1, 2012		$	2,060		$	340
Total gains or losses:
Included in other comprehensive income (unrealized)			(75	)		20
Balance, September 30, 2012		$	1,985		$	360
The following table presents quantitative information about Level 3 fair value measurements at September 30, 2013:
		Fair			Valuation		Unobservable	Input
		value			Technique		Inputs	Utilized
Pooled trust preferred		$	776		Discounted		Collateral default rate	2% in 2013; 1.5% in 2014;
					cash flow			1.0% in 2015; 0.5% in
								2016 and thereafter
							Yield	12%
							Prepayment speed	6.7% constant prepayment
								rate in 2013; 2.0%
								constant prepayment rate
								in 2014 and thereafter
The following table presents quantitative information about Level 3 fair value measurements at December 31, 2012:
		Fair			Valuation		Unobservable	Input
		value			Technique		Inputs	Utilized
Corporate notes and bonds		$	1,980		Discounted		Constant prepayment rate	0%
					cash flow		Probability of default	0%
							Discount rate	9.60%
Pooled trust preferred		$	600		Discounted		Collateral default rate	2% annually for 2 years;
					cash flow			0.36% thereafter
							Yield	13%
							Recovery probability	10%, lagged 2 years
At September 30, 2013, the significant unobservable inputs used in the fair value measurement of the Corporation’s pooled trust preferred security are collateral default rate, yield, and prepayment speed. At December 31, 2012, the significant unobservable inputs used in the fair value measurement of the Corporation’s pooled trust preferred security are collateral default rate, yield, and recovery probability. Significant increases in specific-issuer default assumptions or decreases in specific-issuer recovery assumptions would result in a significantly lower fair value measurement. Conversely, decreases in specific-issuer default assumptions or increases in specific-issuer recovery assumptions would result in a higher fair value measurement.
During the three months ended September 30, 2012, residential mortgage and asset backed securities totaling $3,148 that were reported as Level 1 securities as of the beginning of the period were transferred to the Level 2 category. There were no transfers of securities from Level 1 to Level 2 during the three months ended September 30, 2013.
During the nine months ended September 30, 2013 and 2012, the following available for sale securities reported as Level 1 securities as of the beginning of the period were transferred to the Level 2 category:
		2013			2012
U.S. Government sponsored entities		$	0		$	2,000
States and political subdivisions			0			4,655
Residential mortgage and asset backed			0			8,577
Total		$	0		$	15,232
These securities were transferred from the Level 1 category to the Level 2 category since there were no longer quoted prices for identical assets in active markets that the Corporation had the ability to access. There were no transfers from the Level 2 category to the Level 1 category during the three or nine month periods ended September 30, 2013 or 2012. The Corporation’s policy for determining when a transfer between the Level 1 and Level 2 categories has occurred is to monitor and report such transfers as of each quarterly reporting period.
The fair value of impaired loans with specific allocations of the allowance for loan losses is generally based on recent real estate appraisals prepared by third-parties. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by the appraisers to adjust for differences between the comparable sales and income data available. Management also adjusts appraised values based on the length of time that has passed since the appraisal date and other factors. Such adjustments are usually significant and typically result in a Level 3 classification of the inputs for determining fair value.
Assets and liabilities measured at fair value on a non-recurring basis are as follows at September 30, 2013 and December 31, 2012:
					Fair Value Measurements at September 30, 2013 Using
Description		Total			Quoted Prices in			Significant Other			Significant
					Active Markets for			Observable Inputs			Unobservable
					Identical Assets			(Level 2)			Inputs
					(Level 1)						(Level 3)
Assets:
Impaired loans:
Commercial mortgages		$	7,474		$	0		$	0		$	7,474
Commercial, industrial, and agricultural			1,200			0			0			1,200
Residential real estate			64			0			0			64
					Fair Value Measurements at December 31, 2012 Using
Description		Total			Quoted Prices in			Significant Other			Significant
					Active Markets for			Observable Inputs			Unobservable
					Identical Assets			(Level 2)			Inputs
					(Level 1)						(Level 3)
Assets:
Impaired loans:
Commercial mortgages		$	8,422		$	0		$	0		$	8,422
Commercial, industrial, and agricultural			1,973			0			0			1,973
Residential real estate			402			0			0			402
Impaired loans, which are measured for impairment using the fair value of collateral for collateral dependent loans, had a recorded investment of $12,143 with a valuation allowance of $3,405 as of September 30, 2013, resulting in an additional provision for loan losses of $704 and $3,233 for the corresponding three and nine months ended September 30, 2013. Impaired loans had a recorded investment of $12,535 with a valuation allowance of $1,738 as of December 31, 2012, and an additional provision for loan losses of $756 and $1,544 was recorded for the three and nine months ended September 30, 2012.
The estimated fair values of impaired collateral dependent loans such as commercial or residential mortgages are determined primarily through third-party appraisals. When a collateral dependent loan, such as a commercial or residential mortgage loan, becomes impaired, a decision is made regarding whether an updated certified appraisal of the real estate is necessary. This decision is based on various considerations, including the age of the most recent appraisal, the loan-to-value ratio based on the original appraisal, and the condition of the property. Appraised values are discounted to arrive at the estimated selling price of the collateral and a further reduction for estimated costs to sell the property is applied, which results in an amount that is considered to be the estimated fair value. If a loan becomes impaired and the appraisal of related loan collateral is outdated, management applies an appropriate adjustment factor based on its experience with current valuations of similar collateral in determining the loan’s estimated fair value and resulting allowance for loan losses. Third-party appraisals are not customarily obtained in respect of unimpaired loans, unless in management’s view changes in circumstances warrant obtaining an updated appraisal.
The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis at September 30, 2013:
		Fair			Valuation		Unobservable	Range
		value			Technique		Inputs	(Weighted Average)
Impaired loans – commercial mortgages		$	7,473		Sales comparison approach		Adjustment for differences between the comparable sales	9% - 10% (10%)
Impaired loans – commercial, industrial, and agricultural			1,200		Income approach		Adjustment for differences in net operating income	13% - 32% (23%)
Impaired loans – residential real estate			64		Sales comparison approach		Adjustment for differences between the comparable sales	17% - 26% (23%)
The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis at December 31, 2012:
		Fair			Valuation		Unobservable	Range
		value			Technique		Inputs	(Weighted Average)
Impaired loans – commercial mortgages		$	8,422		Sales comparison approach		Adjustment for differences between the comparable sales	1% - 39% (19%)
Impaired loans – commercial, industrial, and agricultural			1,973		Income approach		Adjusting for differences in net operating income	24% - 38% (27%)
Impaired loans – residential real estate			402		Sales comparison approach		Adjustment for differences between the comparable sales	10% - 15% (11%)
Fair Value of Financial Instruments
The following table presents the carrying amount and fair value of financial instruments at September 30, 2013:
		Carrying			Fair Value Measurement Using:									Total
		Amount			Level 1			Level 2			Level 3			Fair Value
ASSETS
Cash and cash equivalents		$	32,856		$	32,856		$	0		$	0		$	32,856
Interest bearing time deposits with other banks			275			0			281			0			281
Securities available for sale			700,531			70,509			629,246			776			700,531
Trading securities			4,358			4,153			205			0			4,358
Loans held for sale			399			0			410			0			410
Net loans			1,011,750			0			0			1,008,375			1,008,375
FHLB and other equity interests			7,580			n/a			n/a			n/a			n/a
Accrued interest receivable			7,267			429			3,827			3,011			7,267
LIABILITIES
Deposits		$	(1,552,281	)	$	(1,365,864	)	$	(186,041	)	$	0		$	(1,551,905	)
FHLB and other borrowings			(122,976	)		0			(122,976	)		0			(122,976	)
Subordinated debentures			(20,620	)		0			(10,945	)		0			(10,945	)
Interest rate swaps			(1,241	)		0			(1,241	)		0			(1,241	)
Accrued interest payable			(805	)		(200	)		(590	)		(15	)		(805	)
The following table presents the carrying amount and fair value of financial instruments at December 31, 2012:
		Carrying			Fair Value Measurement Using:									Total
		Amount			Level 1			Level 2			Level 3			Fair Value
ASSETS
Cash and cash equivalents		$	31,881		$	31,881		$	0		$	0		$	31,881
Interest bearing time deposits with other banks			225			0			230			0			230
Securities available for sale			737,311			54,169			680,562			2,580			737,311
Trading securities			4,459			4,300			159			0			4,459
Loans held for sale			2,398			0			2,460			0			2,460
Net loans			913,764			0			0			917,785			917,785
FHLB and other equity interests			6,684			n/a			n/a			n/a			n/a
Accrued interest receivable			6,863			278			3,498			3,087			6,863
LIABILITIES
Deposits		$	(1,485,003	)	$	(1,272,060	)	$	(215,485	)	$	0		$	(1,487,545	)
FHLB and other borrowings			(97,806	)		0			(105,850	)		0			(105,850	)
Subordinated debentures			(20,620	)		0			(10,682	)		0			(10,682	)
Interest rate swaps			(1,745	)		0			(1,745	)		0			(1,745	)
Accrued interest payable			(1,022	)		(301	)		(707	)		(14	)		(1,022	)
The methods and assumptions, not otherwise presented, used to estimate fair values are described as follows:
Cash and cash equivalents: The carrying amounts of cash and cash equivalents approximate fair values and are classified as Level 1.
Interest bearing time deposits with other banks: The fair value of interest bearing time deposits with other banks is estimated using a discounted cash flow calculation that applies interest rates currently being offered to a schedule of aggregated expected monthly maturities, resulting in a Level 2 classification.
Loans held for sale: The fair value of loans held for sale is estimated based upon binding contracts and quotes from third party investors resulting in a Level 2 classification.
Loans: For variable rate loans that reprice frequently and with no significant change in credit risk, fair values are based on carrying values, resulting in a Level 3 classification. Fair values for other loans are estimated using discounted cash flow analyses, using interest rates currently being offered for loans with similar terms to borrowers of similar credit quality, resulting in a Level 3 classification. Impaired loans are valued at the lower of cost or fair value as described previously. The methods utilized to estimate the fair value of loans do not necessarily represent an exit price.
FHLB and other equity interests: It is not practical to determine the fair value of Federal Home Loan Bank stock and other equity interests due to restrictions placed on the transferability of these instruments.
Accrued interest receivable: The carrying amount of accrued interest receivable approximates fair value resulting in a classification that is consistent with the asset with which it is associated.
Deposits: The fair values disclosed for demand deposits are, by definition, equal to the amount payable on demand at the reporting date (i.e. their carrying amount), resulting in a Level 1 classification. Fair values for time deposits are estimated using a discounted cash flow calculation that applies interest rates currently being offered on certificates to a schedule of aggregated expected monthly maturities on time deposits, resulting in a Level 2 classification.
FHLB and other borrowings: The fair values of the Corporation’s FHLB and other borrowings are estimated using discounted cash flow analyses based on the current borrowing rates for similar types of borrowing arrangements, resulting in a Level 2 classification.
Subordinated debentures: The fair value of the Corporation’s subordinated debentures are estimated using discounted cash flow analyses based on the current borrowing rates for similar types of arrangements, resulting in a Level 3 classification.
Accrued interest payable: The carrying amount of accrued interest payable approximates fair value resulting in a classification that is consistent with the liability with which it is associated.
While estimates of fair value are based on management’s judgment of the most appropriate factors as of the balance sheet date, there is no assurance that the estimated fair values would have been realized if the assets had been disposed of or the liabilities settled at that date, since market values may differ depending on various circumstances. The estimated fair values would also not apply to subsequent dates.
In addition, other assets and liabilities that are not financial instruments, such as premises and equipment, are not included in the disclosures. Also, non-financial assets such as, among other things, the estimated earnings power of core deposits, the earnings potential of trust accounts, the trained workforce, and customer goodwill, which typically are not recognized on the balance sheet, may have value but are not included in the fair value disclosures.

Securities

Securities	9 Months Ended
	Sep. 30, 2013
Investments Debt And Equity Securities [Abstract]	'
Securities	'
	5	SECURITIES
	Securities available for sale at September 30, 2013 and December 31, 2012 are as follows:
			September 30, 2013											December 31, 2012
			Amortized		Unrealized						Fair			Amortized		Unrealized						Fair
			Cost		Gains			Losses			Value			Cost		Gains			Losses			Value
	U.S. Treasury		$	2,003	$	4		$	0		$	2,007		$	4,018	$	18		$	0		$	4,036
	U.S. Gov’t sponsored entities			179,875		3,175			(5,820	)		177,230			157,965		5,977			(161	)		163,781
	State & political subdivisions			177,503		4,416			(2,056	)		179,863			170,223		11,113			(57	)		181,279
	Residential & multi-family mortgage			258,466		2,945			(6,372	)		255,039			308,800		8,724			(702	)		316,822
	Commercial mortgage			971		0			(21	)		950			1,275		29			0			1,304
	Corporate notes & bonds			15,741		56			(1,640	)		14,157			17,368		26			(2,370	)		15,024
	Pooled trust preferred			800		0			(24	)		776			800		0			(200	)		600
	Pooled SBA			71,924		652			(3,063	)		69,513			50,667		2,277			(17	)		52,927
	Other securities			1,020		0			(24	)		996			1,521		17			0			1,538
	Total		$	708,303	$	11,248		$	(19,020	)	$	700,531		$	712,637	$	28,181		$	(3,507	)	$	737,311
	At September 30, 2013, there were no holdings of securities of any one issuer, other than the U.S. Government sponsored entities, in an amount greater than 10% of shareholders’ equity. The Corporation’s residential and multi-family mortgage securities are issued by government sponsored entities, and the Corporation holds one commercial mortgage security that is private label.
	Trading securities at September 30, 2013 and December 31, 2012 are as follows:
			September 30,		December 31,
			2013		2012
	Corporate equity securities		$	2,998	$	3,117
	Certificates of deposit			253		408
	International mutual funds			257		287
	Large cap growth mutual funds			182		157
	Large cap value mutual funds			121		104
	Real estate investment trust mutual funds			40		65
	Corporate notes and bonds			152		101
	Mid cap mutual funds			81		26
	Small cap mutual funds			81		26
	U.S. Government sponsored entities			53		58
	Commodities mutual funds			54		0
	Money market mutual funds			86		110
	Total		$	4,358	$	4,459
	Securities with unrealized losses at September 30, 2013 and December 31, 2012, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, are as follows (in thousands):
	September 30, 2013
			Less than 12 Months					12 Months or More						Total
			Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
			Value		Loss			Value			Loss			Value		Loss
	U.S. Treasury		$	0	$	0		$	0		$	0		$	0	$	0
	U.S. Gov’t sponsored entities			110,419		(5,820	)		0			0			110,419		(5,820	)
	State & political subdivisions			58,955		(2,047	)		474			(9	)		59,429		(2,056	)
	Residential & multi-family mortgage			157,880		(6,201	)		5,124			(171	)		163,004		(6,372	)
	Commercial mortgage			950		(21	)		0			0			950		(21	)
	Corporate notes & bonds			0		0			9,754			(1,640	)		9,754		(1,640	)
	Pooled trust preferred			0		0			776			(24	)		776		(24	)
	Pooled SBA			40,735		(2,933	)		1,802			(130	)		42,537		(3,063	)
	Other securities			996		(24	)		0			0			996		(24	)
			$	369,935	$	(17,046	)	$	17,930		$	(1,974	)	$	387,865	$	(19,020	)
	December 31, 2012
			Less than 12 Months					12 Months or More						Total
			Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
			Value		Loss			Value			Loss			Value		Loss
	U.S. Treasury		$	0	$	0		$	0		$	0		$	0	$	0
	U.S. Gov’t sponsored entities			41,715		(161	)		0			0			41,715		(161	)
	State & political subdivisions			7,857		(57	)		0			0			7,857		(57	)
	Residential & multi-family mortgage			32,159		(688	)		4,254			(14	)		36,413		(702	)
	Commercial mortgage			0		0			0			0			0		0
	Corporate notes & bonds			0		0			13,002			(2,370	)		13,002		(2,370	)
	Pooled trust preferred			0		0			600			(200	)		600		(200	)
	Pooled SBA			3,521		(17	)		0			0			3,521		(17	)
	Other securities			0		0			0			0			0		0
			$	85,252	$	(923	)	$	17,856		$	(2,584	)	$	103,108	$	(3,507	)
	The Corporation evaluates securities for other-than-temporary impairment on a quarterly basis, or more frequently when economic or market conditions warrant such an evaluation.
	At September 30, 2013, the Corporation held one structured pooled trust preferred security with an adjusted amortized cost of $800 and a fair value of $776. The Corporation evaluated this security for other-than-temporary impairment by estimating the cash flows expected to be received, taking into account future estimated levels of deferrals and defaults by the underlying issuers, and discounting those cash flows at the appropriate accounting yield. For the three and nine months ended September 30, 2013 and 2012, no other-than-temporary impairment was required to be realized in earnings. At September 30, 2013 and December 31, 2012, the Corporation held four structured pooled trust preferred securities with an adjusted amortized cost and fair value of zero.
A roll-forward of the other-than-temporary impairment amount related to credit losses for the three and nine months ended September 30, 2013 and 2012 is as follows:
Balance of credit losses on debt securities for which a portion of other-than-temporary impairment was recognized in earnings, beginning of period		$	4,054
Additional credit loss for which other-than-temporary impairment was not previously recognized			0
Additional credit loss for which other-than-temporary impairment was previously recognized			0
Balance of credit losses on debt securities for which a portion of other-than-temporary impairment was recognized in earnings, end of period		$	4,054
Due to the insignificance of the adjusted amortized cost balance, no further disclosures are required with respect to the Corporation’s structured pooled trust preferred securities.
For the securities that comprise corporate notes and bonds and the securities that are issued by state and political subdivisions, management monitors publicly available financial information, such as filings with the Securities and Exchange Commission, in order to evaluate the securities for other-than-temporary impairment. For financial institution issuers, management monitors information from quarterly “call” report filings that are used to generate Uniform Bank Performance Reports. All other securities that were in an unrealized loss position at the balance sheet date were reviewed by management, and issuer-specific documents were reviewed, as appropriate given the following considerations. When reviewing securities for other-than-temporary impairment, management considers the financial condition and near-term prospects of the issuer and whether downgrades by bond rating agencies have occurred. Management also considers the length of time and extent to which fair value has been less than cost, and management does not have the intent to sell these securities and it is likely that it will not be required to sell the securities before their anticipated recovery.
As of September 30, 2013 and December 31, 2012, management concluded that the securities described in the previous paragraph were not other-than-temporarily impaired for the following reasons:
	•		There is no indication of any significant deterioration of the creditworthiness of the institutions that issued the securities.
	•		All contractual interest payments on the securities have been received as scheduled, and no information has come to management’s attention through the processes previously described which would lead to a conclusion that future contractual payments will not be timely received.
The Corporation does not intend to sell and it is not more likely than not that it will be required to sell the securities in an unrealized loss position before recovery of its amortized cost basis.
Information pertaining to security sales is as follows:
		Proceeds		Gross Gains			Gross Losses
Three months ended September 30, 2013		$	0	$	0		$	0
Nine months ended September 30, 2013			33,672		822			(494	)
Three months ended September 30, 2012			4,090		103			0
Nine months ended September 30, 2012			92,707		1,549			(149	)
The following is a schedule of the contractual maturity of securities available for sale, excluding equity securities, at September 30, 2013:
		Amortized		Fair
		Cost		Value
1 year or less		$	31,904	$	31,651
1 year – 5 years			137,688		138,186
5 years – 10 years			163,672		162,836
After 10 years			42,658		41,360
			375,922		374,033
Residential and multi-family mortgage			258,466		255,039
Pooled SBA			71,924		69,513
Commercial mortgage			971		950
Total debt securities		$	707,283	$	699,535
Mortgage and asset backed securities and pooled SBA securities are not due at a single date; periodic payments are received based on the payment patterns of the underlying collateral.
On September 30, 2013 and December 31, 2012, securities carried at $340,446 and $264,813, respectively, were pledged to secure public deposits and for other purposes as provided by law.

Loans

Loans	9 Months Ended
	Sep. 30, 2013
Receivables [Abstract]	'
Loans	'
	6	LOANS
	Total net loans at September 30, 2013 and December 31, 2012 are summarized as follows:
			September 30,			December 31,
			2013			2012
	Commercial, industrial, and agricultural		$	258,889		$	257,091
	Commercial mortgages			305,840			261,791
	Residential real estate			400,649			347,904
	Consumer			62,187			58,668
	Credit cards			4,800			4,800
	Overdrafts			510			971
	Less:     unearned discount			(3,904	)		(3,401	)
	allowance for loan losses			(17,221	)		(14,060	)
	Loans, net		$	1,011,750		$	913,764
	At September 30, 2013 and December 31, 2012, net unamortized loan costs of $322 and $232, respectively, have been included in the carrying value of loans.
	The Corporation’s outstanding loans and related unfunded commitments are primarily concentrated within Central and Western Pennsylvania. The Bank attempts to limit concentrations within specific industries by utilizing dollar limitations to single industries or customers and by entering into participation agreements with third parties. Collateral requirements are established based on management’s assessment of the customer.
	The Corporation maintains lending policies to control the quality of the loan portfolio. These policies delegate the authority to extend loans under specific guidelines and underwriting standards. These policies are prepared by the Corporation’s management and reviewed and ratified annually by the Corporation’s Board of Directors.
	All relevant documentation, such as the loan application, financial statements and tax returns, required under the lending policies is summarized and provided to management and/or the Corporation’s Board of Directors in connection with the loan approval process. Such documentation is subsequently electronically archived in the Corporation’s document management system. Pursuant to the Corporation’s lending policies, management considers a variety of factors when determining whether to extend credit to a customer, including loan-to-value ratios, FICO scores, quality of the borrower’s financial statements, and the ability to obtain personal guarantees.
	Commercial, industrial, and agricultural loans comprised 26% and 28% of the Corporation’s total loan portfolio at September 30, 2013 and December 31, 2012, respectively. Commercial mortgage loans comprised 30% and 28% of the Corporation’s total loan portfolio at September 30, 2013 and December 31, 2012, respectively. Management assigns a risk rating to all commercial loans in excess of $250,000. The loan-to-value policy guidelines for commercial, industrial, and agricultural loans are generally a maximum of 80% of the value of business equipment, a maximum of 75% of the value of accounts receivable, and a maximum of 60% of the value of business inventory. The loan-to-value policy guideline for commercial mortgage loans is generally a maximum of 85% of the appraised value of the real estate.
	Residential real estate loans comprised 40% and 37% of the Corporation’s total loan portfolio at September 30, 2013 and December 31, 2012, respectively. The loan-to-value policy guidelines for residential real estate loans vary depending on the collateral position and the specific type of loan. Higher loan-to-value terms may be approved with the appropriate private mortgage insurance coverage. The Corporation also originates and prices loans for sale into the secondary market through Freddie Mac. The rationale for these sales is to mitigate interest rate risk associated with holding lower rate, long-term residential mortgages in the loan portfolio and to generate fee revenue from sales and servicing the loan. The Corporation also offers a variety of unsecured and secured consumer loan and credit card products which represent less than 10% of the total loan portfolio at both September 30, 2013 and December 31, 2012. Terms and collateral requirements vary depending on the size and nature of the loan.
	CNB has not underwritten any hybrid loans, payment option loans, or low documentation/no documentation loans. Variable rate loans are generally underwritten at the fully indexed rate. Loan underwriting policies and procedures have not changed materially between any periods presented.
	Transactions in the allowance for loan losses for the three months ended September 30, 2013 were as follows:
			Commercial,						Residential
			Industrial, and			Commercial			Real						Credit
			Agricultural			Mortgages			Estate			Consumer			Cards			Overdrafts			Total
	Allowance for loan losses, July 1, 2013		$	5,338		$	5,896		$	2,508		$	1,555		$	55		$	148		$	15,500
	Charge-offs			(169	)		(4	)		(57	)		(269	)		(19	)		(72	)		(590	)
	Recoveries			0			1,424			1			21			3			16			1,465
	Provision (benefit) for loan losses			384			(275	)		189			454			18			76			846
	Allowance for loan losses, September 30, 2013		$	5,553		$	7,041		$	2,641		$	1,761		$	57		$	168		$	17,221
	Transactions in the allowance for loan losses for the nine months ended September 30, 2013 were as follows:
			Commercial,						Residential
			Industrial, and			Commercial			Real						Credit
			Agricultural			Mortgages			Estate			Consumer			Cards			Overdrafts			Total
	Allowance for loan losses, January 1, 2013		$	4,940		$	4,697		$	2,466		$	1,699		$	83		$	175		$	14,060
	Charge-offs			(253	)		(1,534	)		(398	)		(946	)		(48	)		(163	)		(3,342	)
	Recoveries			7			1,427			5			95			13			65			1,612
	Provision (benefit) for loan losses			859			2,451			568			913			9			91			4,891
	Allowance for loan losses, September 30, 2013		$	5,553		$	7,041		$	2,641		$	1,761		$	57		$	168		$	17,221
	Transactions in the allowance for loan losses for the three months ended September 30, 2012 were as follows:
			Commercial,						Residential
			Industrial, and			Commercial			Real						Credit
			Agricultural			Mortgages			Estate			Consumer			Cards			Overdrafts			Total
	Allowance for loan losses, July 1, 2012		$	5,115		$	4,553		$	2,225		$	1,568		$	81		$	148		$	13,690
	Charge-offs			(751	)		(165	)		(7	)		(252	)		(22	)		(80	)		(1,277	)
	Recoveries			6			0			1			18			1			22			48
	Provision (benefit) for loan losses			103			504			113			372			19			77			1,188
	Allowance for loan losses, September 30, 2012		$	4,473		$	4,892		$	2,332		$	1,706		$	79		$	167		$	13,649
	Transactions in the allowance for loan losses for the nine months ended September 30, 2012 were as follows:
			Commercial,						Residential
			Industrial, and			Commercial			Real						Credit
			Agricultural			Mortgages			Estate			Consumer			Cards			Overdrafts			Total
	Allowance for loan losses, January 1, 2012		$	4,511		$	4,470		$	1,991		$	1,404		$	71		$	168		$	12,615
	Charge-offs			(1,398	)		(401	)		(231	)		(890	)		(55	)		(197	)		(3,172	)
	Recoveries			14			0			1			67			8			78			168
	Provision for loan losses			1,346			823			571			1,125			55			118			4,038
	Allowance for loan losses, September 30, 2012		$	4,473		$	4,892		$	2,332		$	1,706		$	79		$	167		$	13,649
	The following table presents the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment and is based on the Corporation’s impairment method as of September 30, 2013 and December 31, 2012. The recorded investment in loans excludes accrued interest due to its insignificance.
	September 30, 2013
			Commercial,			Commercial			Residential			Consumer			Credit			Overdrafts			Total
			Industrial, and			Mortgages			Real						Cards
			Agricultural						Estate
	Allowance for loan losses:
	Ending allowance balance attributable to loans:
Individually evaluated for impairment		$	573		$	932		$	0		$	0		$	0		$	0		$	1,505
Collectively evaluated for impairment			4,980			4,209			2,641			1,761			57			168			13,816
Modified in a troubled debt restructuring			0			1,900			0			0			0			0			1,900
Total ending allowance balance		$	5,553		$	7,041		$	2,641		$	1,761		$	57		$	168		$	17,221
Loans:
Loans individually evaluated for impairment		$	1,774		$	4,252		$	64		$	0		$	0		$	0		$	6,090
Loans collectively evaluated for impairment			255,813			289,635			400,585			58,283			4,800			510			1,009,626
Loans modified in a troubled debt restructuring			1,302			11,953			0			0			0			0			13,255
Total ending loans balance		$	258.889		$	305,840		$	400,649		$	58,283		$	4,800		$	510		$	1,028,971
December 31, 2012
		Commercial,			Commercial			Residential			Consumer			Credit			Overdrafts			Total
		Industrial, and			Mortgages			Real						Cards
		Agricultural						Estate
Allowance for loan losses:
Ending allowance balance attributable to loans:
Individually evaluated for impairment		$	541		$	131		$	81		$	0		$	0		$	0		$	753
Collectively evaluated for impairment			4,399			3,467			2,385			1,699			83			175			12,208
Modified in a troubled debt restructuring			0			1,099			0			0			0			0			1,099
Total ending allowance balance		$	4,940		$	4,697		$	2,466		$	1,699		$	83		$	175		$	14,060
Loans:
Loans individually evaluated for impairment		$	2,623		$	10,683		$	593		$	0		$	0		$	0		$	13,899
Loans collectively evaluated for impairment			253,048			240,907			347,311			55,267			4,800			971			902,304
Loans modified in a troubled debt restructuring			1,420			10,201			0			0			0			0			11,621
Total ending loans balance		$	257,091		$	261,791		$	347,904		$	55,267		$	4,800		$	971		$	927,824
The following tables present information related to loans individually evaluated for impairment by portfolio segment as of September 30, 2013 and December 31, 2012 and for the three and nine months ended September 30, 2013 and 2012:
September 30, 2013
		Unpaid Principal			Recorded			Allowance for Loan
		Balance			Investment			Losses Allocated
With an allowance recorded:
Commercial, industrial, and agricultural		$	1,836		$	1,085		$	573
Commercial mortgage			12,017			9,985			2,832
Residential real estate			0			0			0
With no related allowance recorded:
Commercial, industrial, and agricultural			2,604			1,991			0
Commercial mortgage			6,246			6,220			0
Residential real estate			149			64			0
Total		$	22,852		$	19,345		$	3,405
December 31, 2012
		Unpaid Principal			Recorded			Allowance for Loan
		Balance			Investment			Losses Allocated
With an allowance recorded:
Commercial, industrial, and agricultural		$	2,542		$	1,792		$	541
Commercial mortgage			5,870			5,329			1,230
Residential real estate			416			381			81
With no related allowance recorded:
Commercial, industrial, and agricultural			2,804			2,251			0
Commercial mortgage			17,285			15,555			0
Residential real estate			308			212			0
Total		$	29,225		$	25,520		$	1,852
		Three Months Ended									Nine Months Ended
		September 30, 2013									September 30, 2013
		Average			Interest			Cash Basis			Average			Interest			Cash Basis
		Recorded			Income			Interest			Recorded			Income			Interest
		Investment			Recognized			Recognized			Investment			Recognized			Recognized
With an allowance recorded:
Commercial, industrial, and agricultural		$	1,267		$	3		$	3		$	1,439		$	4		$	4
Commercial mortgage			8,337			0			0			7,657			3			3
Residential real estate			0			1			1			191			4			4
With no related allowance recorded:
Commercial, industrial, and agricultural			2,055			0			0			2,121			0			0
Commercial mortgage			10,602			0			0			10,888			0			0
Residential real estate			69			0			0			138			0			0
Total		$	22,330		$	4		$	4		$	22,434		$	11		$	11
		Three Months Ended									Nine Months Ended
		September 30, 2012									September 30, 2012
		Average			Interest			Cash Basis			Average			Interest			Cash Basis
		Recorded			Income			Interest			Recorded			Income			Interest
		Investment			Recognized			Recognized			Investment			Recognized			Recognized
With an allowance recorded:
Commercial, industrial, and agricultural		$	4,140		$	0		$	0		$	3,406		$	3		$	3
Commercial mortgage			6,180			3			3			5,549			3			3
Residential real estate			476			3			3			322			11			11
With no related allowance recorded:
Commercial, industrial, and agricultural			3,506			0			0			3,459			0			0
Commercial mortgage			11,971			0			0			12,016			0			0
Residential real estate			151			0			0			75			0			0
Total		$	26,424		$	6		$	6		$	24,827		$	17		$	17
The following table presents the recorded investment in nonaccrual loans and loans past due over 90 days still accruing interest by class of loans as of September 30, 2013 and December 31, 2012:
		September 30, 2013						December 31, 2012
		Nonaccrual			Past Due			Nonaccrual			Past Due
					Over 90 Days						Over 90 Days
					Still on Accrual						Still on Accrual
Commercial, industrial, and agricultural		$	2,566		$	0		$	3,073		$	0
Commercial mortgages			8,946			0			8,570			109
Residential real estate			1,993			58			2,792			18
Consumer			683			11			10			217
Credit cards			0			54			0			13
Total		$	14,188		$	123		$	14,445		$	357
Nonaccrual loans and loans past due over 90 days still on accrual include both smaller balance homogeneous loans that are collectively evaluated for impairment and individually classified impaired loans.
Generally, loans are restored to accrual status when the obligation is brought current, has performed in accordance with the contractual terms for a reasonable period of time (generally six months) and the ultimate collectability of the total contractual principal and interest is no longer in doubt.
The following table presents the aging of the recorded investment in past due loans as of September 30, 2013 and December 31, 2012 by class of loans.
September 30, 2013
		30-59 Days			60-89 Days			Greater Than			Total Past			Loans Not			Total
		Past Due			Past Due			90 Days			Due			Past Due
								Past Due
Commercial, industrial, and agricultural		$	126		$	523		$	2,478		$	3,127		$	255,762		$	258,889
Commercial mortgages			1,173			0			5,784			6,957			298,883			305,840
Residential real estate			860			949			1,954			3,763			396,886			400,649
Consumer			569			266			694			1,529			56,754			58,283
Credit cards			24			23			54			101			4,699			4,800
Overdrafts			0			0			0			0			510			510
Total		$	2,752		$	1,761		$	10,964		$	15,477		$	1,013,494		$	1,028,971
December 31, 2012
		30-59 Days			60-89 Days			Greater Than			Total Past			Loans Not			Total
		Past Due			Past Due			90 Days Past			Due			Past Due
								Due
Commercial, industrial, and agricultural		$	724		$	157		$	2,968		$	3,849		$	253,242		$	257,091
Commercial mortgages			1,162			3,197			8,679			13,038			248,753			261,791
Residential real estate			1,390			641			2,700			4,731			343,173			347,904
Consumer			724			203			227			1,154			54,113			55,267
Credit cards			39			9			13			61			4,739			4,800
Overdrafts			0			0			0			0			971			971
Total		$	4,039		$	4,207		$	14,587		$	22,833		$	904,991		$	927,824
Troubled Debt Restructurings
The terms of certain loans have been modified as troubled debt restructurings. The modification of the terms of such loans included either or both of the following: a reduction of the stated interest rate of the loan or an extension of the maturity date at a stated rate of interest lower than the current market rate for new debt with similar risk.
The following table presents the number of loans, loan balances, and specific reserves for loans that have been restructured in a troubled debt restructuring as of September 30, 2013 and December 31, 2012.
		September 30, 2013									December 31, 2012
		Number of			Loan			Specific			Number of			Loan			Specific
		Loans			Balance			Reserve			Loans			Balance			Reserve
Commercial, industrial, and agricultural			2		$	1,302		$	0			2		$	1,420		$	0
Commercial mortgages			10			11,953			1,900			8			10,201			1,099
Residential real estate			0			0			0			0			0			0
Consumer			0			0			0			0			0			0
Credit cards			0			0			0			0			0			0
Total			12		$	13,255		$	1,900			10		$	11,621		$	1,099
The following tables present loans by class modified as troubled debt restructurings that occurred during the nine months ended September 30, 2013 and 2012. There was one loan modified as a troubled debt restructuring during the three months ended September 30, 2013, and no loans modified as troubled debt restructurings during the three months ended September 30, 2012.
		Nine Months Ended September 30, 2013
		Number of			Pre-Modification			Post-Modification
		Loans			Outstanding Recorded			Outstanding  Recorded
					Investment			Investment
Commercial, industrial, and agricultural			0		$	0		$	0
Commercial mortgages			2			3,615			3,549
Residential real estate			0			0			0
Consumer			0			0			0
Credit cards			0			0			0
Total			2		$	3,615		$	3,549
		Nine Months Ended September 30, 2012
		Number of			Pre-Modification			Post-Modification
		Loans			Outstanding Recorded			Outstanding  Recorded
					Investment			Investment
Commercial, industrial, and agricultural			1		$	310		$	310
Commercial mortgages			4			2,556			2,556
Residential real estate			0			0			0
Consumer			0			0			0
Credit cards			0			0			0
Total			5		$	2,866		$	2,866
The troubled debt restructurings described above increased the allowance for loan losses by $562 and $0 during the three months ended September 30, 2013 and 2012 and $562 and $0 during the nine months ended September 30, 2013 and 2012.
Modifications involving a reduction of the stated interest rate of the loan were for periods ranging from 4 to 15 years. Modifications involving an extension of the maturity date were for periods ranging from 4 to 18 years.
A loan is considered to be in payment default once it is 90 days contractually past due under the modified terms. Except as discussed below, all loans modified in troubled debt restructurings are performing in accordance with their modified terms as of September 30, 2013 and December 31, 2012 and no principal balances were forgiven in connection with the loan restructurings. In the first quarter of 2013, the Corporation recorded a partial chargeoff of $595 for a commercial mortgage loan with a balance of $1,660 that had defaulted under its restructured terms in 2012 and was placed on nonaccrual status. The Corporation recorded an additional provision for loan losses of $127 and $262 on this loan during the three and nine months ended September 30, 2013, and $503 during both the three and nine months ended September 30, 2012. In the second quarter of 2013, a commercial mortgage loan with a balance of $1,086 defaulted under its restructured terms and was placed on nonaccrual status. The Corporation recorded an additional provision for loan losses of $0 and $588 during the three and nine months ended September 30, 2013. In the third quarter of 2013, an impaired commercial mortgage loan that was placed on non-accrual status in the second quarter of 2013 and having a balance of $3,269 was modified in a troubled debt restructuring. The Corporation recorded an additional provision for loan losses of $562 for this loan during the three months ended September 30, 2013.
In order to determine whether a borrower is experiencing financial difficulty, an evaluation is performed of the probability that the borrower will be in payment default on any of its debt in the foreseeable future without a loan modification. This evaluation is performed using the Corporation’s internal underwriting policies. The Corporation has no further loan commitments to customers whose loans are classified as a troubled debt restructuring.
Generally, non-performing troubled debt restructurings are restored to accrual status when the obligation is brought current, has performed in accordance with the contractual terms for a reasonable period of time (generally six months) and the ultimate collectability of the total contractual principal and interest is no longer in doubt.
Credit Quality Indicators
The Corporation classifies commercial, industrial, and agricultural loans and commercial mortgage loans into risk categories based on relevant information about the ability of borrowers to service their debt, such as current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. Loans with outstanding balances greater than $1 million are analyzed at least semiannually and loans with outstanding balances of less than $1 million are analyzed at least annually.
The Corporation uses the following definitions for risk ratings:
Special Mention: Loans classified as special mention have a potential weakness that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or of the Corporation’s credit position at some future date.
Substandard: Loans classified as substandard are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Corporation will sustain some loss if the deficiencies are not corrected.
Doubtful: Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable.
Loans not rated as special mention, substandard, or doubtful are considered to be pass rated loans. All loans included in the following tables have been assigned a risk rating within 12 months of the balance sheet date.
September 30, 2013
					Special
		Pass			Mention			Substandard			Doubtful			Total
Commercial, industrial, and agricultural		$	230,412		$	6,997		$	21,349		$	131		$	258,889
Commercial mortgages			263,115			9,956			30,040			2,729			305,840
Total		$	493,527		$	16,953		$	51,389		$	2,860		$	564,729
December 31, 2012
					Special
		Pass			Mention			Substandard			Doubtful			Total
Commercial, industrial, and agricultural		$	234,835		$	6,641		$	15,459		$	156		$	257,091
Commercial mortgages			225,294			12,294			23,501			702			261,791
Total		$	460,129		$	18,935		$	38,960		$	858		$	518,882
The Corporation considers the performance of the loan portfolio and its impact on the allowance for loan losses. For residential real estate, consumer, and credit card loan classes, the Corporation also evaluates credit quality based on the aging status of the loan, which was previously presented, and by payment activity. The following table presents the recorded investment in residential, consumer, and credit card loans based on payment activity as of September 30, 2013 and December 31, 2012:
		September 30, 2013									December 31, 2012
		Residential						Credit			Residential						Credit
		Real Estate			Consumer			Cards			Real Estate			Consumer			Cards
Performing		$	398,598		$	57,589		$	4,746		$	345,094		$	55,040		$	4,787
Non-performing			2,051			694			54			2,810			227			13
Total		$	400,649		$	58,283		$	4,800		$	347,904		$	55,267		$	4,800
The Corporation considers all overdraft loans to be performing loans given their short-term duration.
The Corporation’s portfolio of residential real estate and consumer loans maintained within Holiday Financial Services Corporation (“Holiday”), a subsidiary that offers small balance unsecured and secured loans, primarily collateralized by automobiles and equipment, to borrowers with higher risk characteristics than are typical in the Bank’s consumer loan portfolio, are considered to be subprime loans.
Holiday’s loan portfolio is summarized as follows at September 30, 2013 and December 31, 2012:
		September 30,			December 31,
		2013			2012
Consumer		$	23,909		$	21,535
Residential real estate			1,397			954
Less: unearned discount			(3,904	)		(3,401	)
Total		$	21,402		$	19,088

Deposits

Deposits	9 Months Ended
	Sep. 30, 2013
Banking And Thrift [Abstract]	'
Deposits	'
	7	DEPOSITS
	Total deposits at September 30, 2013 and December 31, 2012 are summarized as follows (in thousands):
			Percentage
			Change			September 30, 2013		December 31, 2012
	Checking, non-interest bearing			8.1	%	$	189,362	$	175,239
	Checking, interest bearing			11.3	%		374,826		336,911
	Savings accounts			5.5	%		801,677		759,910
	Certificates of deposit			(12.5	%)		186,416		212,943
				4.5	%	$	1,552,281	$	1,485,003

Earnings_Per_Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	8	EARNINGS PER SHARE
	Basic earnings per share is computed by dividing net income by the weighted average number of shares outstanding during the applicable period, excluding outstanding participating securities. Diluted earnings per share is computed using the weighted average number of shares determined for the basic computation plus the dilutive effect of potential common shares issuable under certain stock compensation plans. For the three and nine months ended September 30, 2013, 36,203 shares issuable pursuant to outstanding stock options were excluded from the diluted earnings per share calculations because the strike prices associated with the options exceeded the market price of the Corporation’s common stock thus making the shares anti-dilutive. For the three and nine months ended September 30, 2012, 37,500 shares issuable pursuant to outstanding stock options were excluded from the diluted earnings per share calculations because the strike prices associated with the options exceeded the market price of the Corporation’s common stock thus making the shares anti-dilutive.
	Unvested share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are participating securities and are included in the computation of earnings per share pursuant to the two-class method. The Corporation has determined that its outstanding non-vested stock awards are participating securities.
	The computation of basic and diluted earnings per share is shown below (in thousands except per share data):
			Three months ended						Nine months ended
			September 30,						September 30,
			2013			2012			2013			2012
	Net income per consolidated statements of income		$	4,703		$	4,563		$	11,951		$	13,246
	Net earnings allocated to participating securities			(21	)		(17	)		(56	)		(50	)
	Net earnings allocated to common stock		$	4,682		$	4,546		$	11,895		$	13,196
	Basic earnings per common share computation:
	Distributed earnings allocated to common stock		$	2,054		$	2,045		$	6,161		$	6,130
	Undistributed earnings allocated to common stock			2,628			2,501			5,734			7,066
	Net earnings allocated to common stock		$	4,682		$	4,546		$	11,895		$	13,196
	Weighted average common shares outstanding, including shares considered participating securities			12,513			12,448			12,505			12,430
	Less: Average participating securities			(51	)		(41	)		(52	)		(42	)
	Weighted average shares			12,462			12,407			12,453			12,388
	Basic earnings per common share		$	0.38		$	0.37		$	0.96		$	1.07
	Diluted earnings per common share computation:
	Net earnings allocated to common stock		$	4,682		$	4,546		$	11,895		$	13,196
	Weighted average common shares outstanding for basic earnings per common share			12,462			12,407			12,453			12,388
	Add: Dilutive effects of assumed exercises of stock options			2			4			1			4
	Weighted average shares and dilutive potential common shares			12,464			12,411			12,454			12,392
	Diluted earnings per common share		$	0.38		$	0.37		$	0.96		$	1.06

Derivative_Instruments

Derivative Instruments	9 Months Ended
	Sep. 30, 2013
Derivative Instruments And Hedging Activities Disclosure [Abstract]	'
Derivative Instruments	'
	9	DERIVATIVE INSTRUMENTS
	The Corporation records all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative and the resulting designation. Derivatives used to hedge the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives used to hedge the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges.
	For derivatives designated as cash flow hedges, the effective portion of the changes in the fair value of the derivative is initially reported in other comprehensive income (outside of earnings) and subsequently reclassified into earnings when the hedged transaction affects earnings, and the ineffective portion of changes in the fair value of the derivative is recognized directly in earnings. The Corporation assesses the effectiveness of each hedging relationship by comparing the changes in cash flows of the derivative hedging instrument with the changes in cash flows of the designated hedged item or transaction.
	On May 3, 2011, the Corporation executed an interest rate swap agreement with a 5 year term and an effective date of September 15, 2013 in order to hedge cash flows associated with $10 million of a subordinated note that was issued by the Corporation during 2007 and elected cash flow hedge accounting for the agreement. The Corporation’s objective in using this derivative is to add stability to interest expense and to manage its exposure to interest rate risk. The interest rate swap involves the receipt of variable-rate amounts in exchange for fixed-rate payments from September 15, 2013 to September 15, 2018 without exchange of the underlying notional amount. At September 30, 2013, the variable rate on the subordinated debt was 1.80% (LIBOR plus 155 basis points) and the Corporation was paying 5.57% (4.02% fixed rate plus 155 basis points).
	On August 1, 2008, the Corporation executed an interest rate swap agreement with a 5 year term and an effective date of September 15, 2008 in order to hedge cash flows associated with $10 million of a subordinated note discussed above. The Corporation’s objective in using this derivative was to add stability to interest expense and to manage its exposure to interest rate risk. The interest rate swap involved the receipt of variable-rate amounts in exchange for fixed-rate payments from September 15, 2008 to the September 15, 2013 maturity date without exchange of the underlying notional amount.
	As of September 30, 2013, no derivatives were designated as fair value hedges or hedges of net investments in foreign operations. Additionally, the Corporation does not use derivatives for trading or speculative purposes and currently does not have any derivatives that are not designated as hedges.
	The following tables provide information about the amounts and locations of activity related to the interest rate swaps designated as cash flow hedges within the Corporation’s consolidated balance sheet and statement of income as of September 30, 2013 and December 31, 2012 and for the three and nine months ended September 30, 2013 and 2012:
				Fair value as of
			Balance Sheet	September 30,	December 31,
			Location	2013	2012
	Interest rate contracts		Accrued interest and	($1,241)	($	1,745	)
			other liabilities
	For the Three Months		(a)	(b)	(c)		(d)		(e)
	Ended September 30, 2013
	Interest rate contracts		$8	Interest expense –	($102)		Other	$	0
				subordinated debentures			income
	For the Nine Months		(a)	(b)	(c)		(d)		(e)
	Ended September 30, 2013
	Interest rate contracts		$327	Interest expense –	($304)		Other	$	0
				subordinated debentures			income
	For the Three Months		(a)	(b)	(c)		(d)		(e)
	Ended September 30, 2012
	Interest rate contracts		($44)	Interest expense –	($98)		Other	$	0
				subordinated debentures			income
	For the Nine Months		(a)	(b)	(c)		(d)		(e)
	Ended September 30, 2012
	Interest rate contracts		($116)	Interest expense –	($290)		Other	$	0
				subordinated debentures			income
	(a)	Amount of Gain or (Loss) Recognized in Other Comprehensive Loss on Derivative (Effective Portion), net of tax
	(b)	Location of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income (Effective Portion)
	(c)	Amount of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income (Effective Portion)
	(d)	Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
	(e)	Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
	Amounts reported in accumulated other comprehensive loss related to the interest rate swap will be reclassified to interest expense as interest payments are made on the subordinated debentures. Such amounts reclassified from accumulated other comprehensive loss to interest expense in the next twelve months are expected to be $377. As of September 30, 2013 and December 31, 2012, a cash collateral balance in the amount of $1,350 and $1,950, respectively, was maintained with a counterparty to the interest rate swaps. These balances are included in interest bearing deposits with other banks on the consolidated balance sheet.

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2013
Accounting Changes And Error Corrections [Abstract]	'
Recent Accounting Pronouncements	'
	10	RECENT ACCOUNTING PRONOUNCEMENTS
	In February 2013, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update 2013-02, “Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income” (ASU 2013-02). ASU 2013-02 requires an entity to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, an entity is required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income but only if the amount reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period. For other amounts that are not required under U.S. GAAP to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures required under U.S. GAAP that provide additional detail about these amounts. ASU 2013-02 is effective prospectively for reporting periods beginning after December 15, 2012. The effect of adopting ASU 2013-02 did not have a material effect on the Corporation’s financial statements.
	In February 2013, the FASB issued Accounting Standards Update 2013-04, “Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation Is Fixed at the Reporting Date” (ASU 2013-04). ASU 2013-04 provides 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 the guidance is fixed at the reporting date, except for obligations addressed within existing guidance in U.S. GAAP. ASU 2013-04 is effective for reporting periods beginning after December 15, 2013. The Corporation is evaluating the effect that the adoption of ASU 2013-04 will have on its financial statements.
	In July 2013, the FASB issued Accounting Standards Update 2013-10, “Derivatives and Hedging (Topic 815), Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes” (ASU 2013-10). ASU 2013-10 was issued to permit the Fed Funds Effective Swap Rate to be used as a U.S. benchmark interest rate for hedge accounting purposes under Topic 815, in addition to direct Treasury obligations of the U.S. Government and the London Interbank Offered Rate (LIBOR) swap rate. ASU 2013-10 is effective prospectively for qualifying new or redesignated hedging relationships entered into on or after July 17, 2013. The adoption of ASU 2013-10 did not have a material effect on the Corporation’s financial statements.
	In July 2013, the FASB issued Accounting Standards Update 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” (ASU 2013-11). ASU 2013-11 was issued to clarify the financial presentation of unrecognized tax benefits in the instances described. ASU 2013-11 is effective for reporting periods beginning after December 15, 2013. The effect of adopting ASU 2013-11 is not expected to have a material effect on the Corporation’s financial statements.

Recent_Accounting_Pronouncemen1

Recent Accounting Pronouncements (Policies)	9 Months Ended
	Sep. 30, 2013
Accounting Changes And Error Corrections [Abstract]	'
Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income	'
	In February 2013, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update 2013-02, “Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income” (ASU 2013-02). ASU 2013-02 requires an entity to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, an entity is required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income but only if the amount reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period. For other amounts that are not required under U.S. GAAP to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures required under U.S. GAAP that provide additional detail about these amounts. ASU 2013-02 is effective prospectively for reporting periods beginning after December 15, 2012. The effect of adopting ASU 2013-02 did not have a material effect on the Corporation’s financial statements.
Fixed Obligations Resulting from Joint and Several Liability Arrangements	'
	In February 2013, the FASB issued Accounting Standards Update 2013-04, “Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation Is Fixed at the Reporting Date” (ASU 2013-04). ASU 2013-04 provides 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 the guidance is fixed at the reporting date, except for obligations addressed within existing guidance in U.S. GAAP. ASU 2013-04 is effective for reporting periods beginning after December 15, 2013. The Corporation is evaluating the effect that the adoption of ASU 2013-04 will have on its financial statements.
Derivatives and Hedging	'
	In July 2013, the FASB issued Accounting Standards Update 2013-10, “Derivatives and Hedging (Topic 815), Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes” (ASU 2013-10). ASU 2013-10 was issued to permit the Fed Funds Effective Swap Rate to be used as a U.S. benchmark interest rate for hedge accounting purposes under Topic 815, in addition to direct Treasury obligations of the U.S. Government and the London Interbank Offered Rate (LIBOR) swap rate. ASU 2013-10 is effective prospectively for qualifying new or redesignated hedging relationships entered into on or after July 17, 2013. The adoption of ASU 2013-10 did not have a material effect on the Corporation’s financial statements.
Income Taxes	'
	In July 2013, the FASB issued Accounting Standards Update 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” (ASU 2013-11). ASU 2013-11 was issued to clarify the financial presentation of unrecognized tax benefits in the instances described. ASU 2013-11 is effective for reporting periods beginning after December 15, 2013. The effect of adopting ASU 2013-11 is not expected to have a material effect on the Corporation’s financial statements.

Stock_Compensation_Tables

Stock Compensation (Tables)	9 Months Ended
	Sep. 30, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Summary of Changes in Nonvested Restricted Stock Awards	'
	A summary of changes in nonvested restricted stock awards for the three months ended September 30, 2013 follows:
					Per Share
					Weighted Average
		Shares			Grant Date Fair Value
	Nonvested at beginning of period		65,400		$	16.24
	Granted		0			0
	Vested		(200	)		15.29
	Nonvested at end of period		65,200		$	16.24
	A summary of changes in nonvested restricted stock awards for the nine months ended September 30, 2013 follows:
					Per Share
					Weighted Average
		Shares			Grant Date Fair Value
	Nonvested at beginning of period		49,574		$	15.37
	Granted		31,500			17.1
	Vested		(15,874	)		15.23
	Nonvested at end of period		65,200		$	16.24

Fair_Value_Tables

Fair Value (Tables)	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Assets and Liabilities Measured at Fair Value on Recurring Basis	'
	Assets and liabilities measured at fair value on a recurring basis are as follows at September 30, 2013 and December 31, 2012:
					Fair Value Measurements at September 30, 2013 Using
	Description	Total			Quoted Prices in			Significant Other			Significant
					Active Markets for			Observable			Unobservable
					Identical Assets			Inputs (Level 2)			Inputs
					(Level 1)						(Level 3)
	Assets:
	Securities Available For Sale:
	U.S. Treasury	$	2,007		$	0		$	2,007		$	0
	U.S. Government sponsored entities		177,230			0			177,230			0
	States and political subdivisions		179,863			0			179,863			0
	Residential and multi-family mortgage		255,039			0			255,039			0
	Commercial mortgage		950			0			950			0
	Corporate notes and bonds		14,157			0			14,157			0
	Pooled trust preferred		776			0			0			776
	Pooled SBA		69,513			69,513			0			0
	Other securities		996			996			0			0
	Total Securities Available For Sale	$	700,531		$	70,509		$	629,246		$	776
	Trading Securities:
	Corporate equity securities	$	2,998		$	2,998		$	0		$	0
	Certificates of deposit		253			253			0			0
	International mutual funds		257			257			0			0
	Large cap growth mutual funds		182			182			0			0
	Large cap value mutual funds		121			121			0			0
	Real estate investment trust mutual funds		40			40			0			0
	Corporate notes and bonds		152			0			152			0
	Mid cap mutual funds		81			81			0			0
	Small cap mutual funds		81			81			0			0
	U.S. Government sponsored entities		53			0			53			0
	Commodities mutual funds		54			54			0			0
	Money market mutual funds		86			86			0			0
	Total Trading Securities	$	4,358		$	4,153		$	205		$	0
	Liabilities:
	Interest rate swaps	$	(1,241	)	$	0		$	(1,241	)	$	0
					Fair Value Measurements at December 31, 2012 Using
	Description	Total			Quoted Prices in			Significant Other			Significant
					Active Markets for			Observable Inputs			Unobservable
					Identical Assets			(Level 2)			Inputs
					(Level 1)						(Level 3)
	Assets:
	Securities Available For Sale:
	U.S. Treasury	$	4,036		$	0		$	4,036		$	0
	U.S. Government sponsored entities		163,781			0			163,781			0
	States and political subdivisions		181,279			0			181,279			0
	Residential and multi-family mortgage		316,822			0			316,822			0
	Commercial mortgage		1,304			0			1,304			0
	Corporate notes and bonds		15,024			0			13,044			1,980
	Pooled trust preferred		600			0			0			600
	Pooled SBA		52,927			52,631			296			0
	Other securities		1,538			1,538			0			0
	Total Securities Available For Sale	$	737,311		$	54,169		$	680,562		$	2,580
	Trading Securities:
	Corporate equity securities	$	3,117		$	3,117		$	0		$	0
	Certificates of deposit		408			408			0			0
	International mutual funds		287			287			0			0
	Large cap growth mutual funds		157			157			0			0
	Money market mutual funds		110			110			0			0
	Large cap value mutual funds		104			104			0			0
	Corporate notes and bonds		101			0			101			0
	Real estate investment trust mutual funds		65			65			0			0
	U.S. Government sponsored entities		58			0			58			0
	Small cap mutual funds		26			26			0			0
	Mid cap mutual funds		26			26			0			0
Total Trading Securities	$	4,459		$	4,300		$	159		$	0
Liabilities:
Interest rate swaps	$	(1,745	)	$	0		$	(1,745	)	$	0
Securities Available for Sale Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)	'
	The table below presents a reconciliation and income statement classification of gains and losses for all securities available for sale measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three months ended September 30, 2013:
		Pooled
		trust
		preferred
	Balance, July 1, 2013	$	630
	Total gains or (losses):
	Included in other comprehensive income		146
	Included in realized gains on available-for-sale securities		0
	Sale of available-for-sale securities		0
	Balance, September 30, 2013	$	776
	The table below presents a reconciliation and income statement classification of gains and losses for all securities available for sale measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the nine months ended September 30, 2013:
		Corporate			Pooled
		notes and			trust
		bonds			preferred
	Balance, January 1, 2013	$	1,980		$	600
	Total gains or (losses):
	Included in other comprehensive income		(29	)		176
	Included in realized gains on available-for-sale securities		58			0
	Sale of available-for-sale securities		(2,009	)		0
	Balance, September 30, 2013	$	0		$	776
	The table below presents a reconciliation and income statement classification of gains and losses for all securities available for sale measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three months ended September 30, 2012:
		Corporate			Pooled
		notes and			trust
		bonds			preferred
	Balance, July 1, 2012	$	2,071		$	360
	Total gains or losses:
	Included in other comprehensive income (unrealized)		(86	)		0
	Balance, September 30, 2012	$	1,985		$	360
	The table below presents a reconciliation and income statement classification of gains and losses for all securities available for sale measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the nine months ended September 30, 2012:
		Corporate			Pooled
		notes and			trust
		bonds			preferred
	Balance, January 1, 2012	$	2,060		$	340
	Total gains or losses:
	Included in other comprehensive income (unrealized)		(75	)		20
	Balance, September 30, 2012	$	1,985		$	360
Quantitative Information about Level 3 Fair Value Measurements	'
	The following table presents quantitative information about Level 3 fair value measurements at September 30, 2013:
		Fair			Valuation		Unobservable	Input
		value			Technique		Inputs	Utilized
	Pooled trust preferred	$	776		Discounted		Collateral default rate	2% in 2013; 1.5% in 2014;
					cash flow			1.0% in 2015; 0.5% in
								2016 and thereafter
							Yield	12%
							Prepayment speed	6.7% constant prepayment
								rate in 2013; 2.0%
								constant prepayment rate
								in 2014 and thereafter
	The following table presents quantitative information about Level 3 fair value measurements at December 31, 2012:
		Fair			Valuation		Unobservable	Input
		value			Technique		Inputs	Utilized
	Corporate notes and bonds	$	1,980		Discounted		Constant prepayment rate	0%
					cash flow		Probability of default	0%
							Discount rate	9.60%
	Pooled trust preferred	$	600		Discounted		Collateral default rate	2% annually for 2 years;
					cash flow			0.36% thereafter
							Yield	13%
							Recovery probability	10%, lagged 2 years
Sale Securities Reported as Level 1 Securities as of Beginning of Period were Transferred to Level 2 Category	'
	During the nine months ended September 30, 2013 and 2012, the following available for sale securities reported as Level 1 securities as of the beginning of the period were transferred to the Level 2 category:
		2013			2012
	U.S. Government sponsored entities	$	0		$	2,000
	States and political subdivisions		0			4,655
	Residential mortgage and asset backed		0			8,577
	Total	$	0		$	15,232
Assets and Liabilities Measured at Fair Value on Non-Recurring Basis	'
	Assets and liabilities measured at fair value on a non-recurring basis are as follows at September 30, 2013 and December 31, 2012:
					Fair Value Measurements at September 30, 2013 Using
	Description	Total			Quoted Prices in			Significant Other			Significant
					Active Markets for			Observable Inputs			Unobservable
					Identical Assets			(Level 2)			Inputs
					(Level 1)						(Level 3)
	Assets:
	Impaired loans:
	Commercial mortgages	$	7,474		$	0		$	0		$	7,474
	Commercial, industrial, and agricultural		1,200			0			0			1,200
	Residential real estate		64			0			0			64
					Fair Value Measurements at December 31, 2012 Using
	Description	Total			Quoted Prices in			Significant Other			Significant
					Active Markets for			Observable Inputs			Unobservable
					Identical Assets			(Level 2)			Inputs
					(Level 1)						(Level 3)
	Assets:
	Impaired loans:
	Commercial mortgages	$	8,422		$	0		$	0		$	8,422
	Commercial, industrial, and agricultural		1,973			0			0			1,973
	Residential real estate		402			0			0			402
Quantitative Information about Level 3 Fair Value Measurements for Financial Instruments Measured at Fair Value on Non Recurring Basis	'
	The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis at September 30, 2013:
		Fair			Valuation		Unobservable	Range
		value			Technique		Inputs	(Weighted Average)
	Impaired loans – commercial mortgages	$	7,473		Sales comparison approach		Adjustment for differences between the comparable sales	9% - 10% (10%)
	Impaired loans – commercial, industrial, and agricultural		1,200		Income approach		Adjustment for differences in net operating income	13% - 32% (23%)
	Impaired loans – residential real estate		64		Sales comparison approach		Adjustment for differences between the comparable sales	17% - 26% (23%)
	The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis at December 31, 2012:
		Fair			Valuation		Unobservable	Range
		value			Technique		Inputs	(Weighted Average)
	Impaired loans – commercial mortgages	$	8,422		Sales comparison approach		Adjustment for differences between the comparable sales	1% - 39% (19%)
	Impaired loans – commercial, industrial, and agricultural		1,973		Income approach		Adjusting for differences in net operating income	24% - 38% (27%)
	Impaired loans – residential real estate		402		Sales comparison approach		Adjustment for differences between the comparable sales	10% - 15% (11%)
Carrying Amount and Fair Value of Financial Instruments	'
	The following table presents the carrying amount and fair value of financial instruments at September 30, 2013:
		Carrying			Fair Value Measurement Using:									Total
		Amount			Level 1			Level 2			Level 3			Fair Value
	ASSETS
	Cash and cash equivalents	$	32,856		$	32,856		$	0		$	0		$	32,856
	Interest bearing time deposits with other banks		275			0			281			0			281
	Securities available for sale		700,531			70,509			629,246			776			700,531
	Trading securities		4,358			4,153			205			0			4,358
	Loans held for sale		399			0			410			0			410
	Net loans		1,011,750			0			0			1,008,375			1,008,375
	FHLB and other equity interests		7,580			n/a			n/a			n/a			n/a
	Accrued interest receivable		7,267			429			3,827			3,011			7,267
	LIABILITIES
	Deposits	$	(1,552,281	)	$	(1,365,864	)	$	(186,041	)	$	0		$	(1,551,905	)
	FHLB and other borrowings		(122,976	)		0			(122,976	)		0			(122,976	)
	Subordinated debentures		(20,620	)		0			(10,945	)		0			(10,945	)
	Interest rate swaps		(1,241	)		0			(1,241	)		0			(1,241	)
	Accrued interest payable		(805	)		(200	)		(590	)		(15	)		(805	)
	The following table presents the carrying amount and fair value of financial instruments at December 31, 2012:
		Carrying			Fair Value Measurement Using:									Total
		Amount			Level 1			Level 2			Level 3			Fair Value
	ASSETS
	Cash and cash equivalents	$	31,881		$	31,881		$	0		$	0		$	31,881
	Interest bearing time deposits with other banks		225			0			230			0			230
	Securities available for sale		737,311			54,169			680,562			2,580			737,311
	Trading securities		4,459			4,300			159			0			4,459
	Loans held for sale		2,398			0			2,460			0			2,460
	Net loans		913,764			0			0			917,785			917,785
	FHLB and other equity interests		6,684			n/a			n/a			n/a			n/a
	Accrued interest receivable		6,863			278			3,498			3,087			6,863
	LIABILITIES
	Deposits	$	(1,485,003	)	$	(1,272,060	)	$	(215,485	)	$	0		$	(1,487,545	)
	FHLB and other borrowings		(97,806	)		0			(105,850	)		0			(105,850	)
	Subordinated debentures		(20,620	)		0			(10,682	)		0			(10,682	)
	Interest rate swaps		(1,745	)		0			(1,745	)		0			(1,745	)
	Accrued interest payable		(1,022	)		(301	)		(707	)		(14	)		(1,022	)

Securities_Tables

Securities (Tables)	9 Months Ended
	Sep. 30, 2013
Investments Debt And Equity Securities [Abstract]	'
Securities Available for Sale	'
	Securities available for sale at September 30, 2013 and December 31, 2012 are as follows:
		September 30, 2013											December 31, 2012
		Amortized		Unrealized						Fair			Amortized		Unrealized						Fair
		Cost		Gains			Losses			Value			Cost		Gains			Losses			Value
	U.S. Treasury	$	2,003	$	4		$	0		$	2,007		$	4,018	$	18		$	0		$	4,036
	U.S. Gov’t sponsored entities		179,875		3,175			(5,820	)		177,230			157,965		5,977			(161	)		163,781
	State & political subdivisions		177,503		4,416			(2,056	)		179,863			170,223		11,113			(57	)		181,279
	Residential & multi-family mortgage		258,466		2,945			(6,372	)		255,039			308,800		8,724			(702	)		316,822
	Commercial mortgage		971		0			(21	)		950			1,275		29			0			1,304
	Corporate notes & bonds		15,741		56			(1,640	)		14,157			17,368		26			(2,370	)		15,024
	Pooled trust preferred		800		0			(24	)		776			800		0			(200	)		600
	Pooled SBA		71,924		652			(3,063	)		69,513			50,667		2,277			(17	)		52,927
	Other securities		1,020		0			(24	)		996			1,521		17			0			1,538
	Total	$	708,303	$	11,248		$	(19,020	)	$	700,531		$	712,637	$	28,181		$	(3,507	)	$	737,311
Trading Securities	'
	Trading securities at September 30, 2013 and December 31, 2012 are as follows:
		September 30,		December 31,
		2013		2012
	Corporate equity securities	$	2,998	$	3,117
	Certificates of deposit		253		408
	International mutual funds		257		287
	Large cap growth mutual funds		182		157
	Large cap value mutual funds		121		104
	Real estate investment trust mutual funds		40		65
	Corporate notes and bonds		152		101
	Mid cap mutual funds		81		26
	Small cap mutual funds		81		26
	U.S. Government sponsored entities		53		58
	Commodities mutual funds		54		0
	Money market mutual funds		86		110
	Total	$	4,358	$	4,459
Securities with Unrealized Losses Aggregated by Investment Category and Length of Time that Individual Securities have been in Continuous Unrealized Loss Position	'
	Securities with unrealized losses at September 30, 2013 and December 31, 2012, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, are as follows (in thousands):
	September 30, 2013
		Less than 12 Months					12 Months or More						Total
		Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
		Value		Loss			Value			Loss			Value		Loss
	U.S. Treasury	$	0	$	0		$	0		$	0		$	0	$	0
	U.S. Gov’t sponsored entities		110,419		(5,820	)		0			0			110,419		(5,820	)
	State & political subdivisions		58,955		(2,047	)		474			(9	)		59,429		(2,056	)
	Residential & multi-family mortgage		157,880		(6,201	)		5,124			(171	)		163,004		(6,372	)
	Commercial mortgage		950		(21	)		0			0			950		(21	)
	Corporate notes & bonds		0		0			9,754			(1,640	)		9,754		(1,640	)
	Pooled trust preferred		0		0			776			(24	)		776		(24	)
	Pooled SBA		40,735		(2,933	)		1,802			(130	)		42,537		(3,063	)
	Other securities		996		(24	)		0			0			996		(24	)
		$	369,935	$	(17,046	)	$	17,930		$	(1,974	)	$	387,865	$	(19,020	)
	December 31, 2012
		Less than 12 Months					12 Months or More						Total
		Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
		Value		Loss			Value			Loss			Value		Loss
	U.S. Treasury	$	0	$	0		$	0		$	0		$	0	$	0
	U.S. Gov’t sponsored entities		41,715		(161	)		0			0			41,715		(161	)
	State & political subdivisions		7,857		(57	)		0			0			7,857		(57	)
	Residential & multi-family mortgage		32,159		(688	)		4,254			(14	)		36,413		(702	)
	Commercial mortgage		0		0			0			0			0		0
	Corporate notes & bonds		0		0			13,002			(2,370	)		13,002		(2,370	)
	Pooled trust preferred		0		0			600			(200	)		600		(200	)
	Pooled SBA		3,521		(17	)		0			0			3,521		(17	)
	Other securities		0		0			0			0			0		0
		$	85,252	$	(923	)	$	17,856		$	(2,584	)	$	103,108	$	(3,507	)
Roll-Forward of Other-Than-Temporary Impairment Amount Related to Credit Losses	'
	A roll-forward of the other-than-temporary impairment amount related to credit losses for the three and nine months ended September 30, 2013 and 2012 is as follows:
	Balance of credit losses on debt securities for which a portion of other-than-temporary impairment was recognized in earnings, beginning of period	$	4,054
	Additional credit loss for which other-than-temporary impairment was not previously recognized		0
	Additional credit loss for which other-than-temporary impairment was previously recognized		0
	Balance of credit losses on debt securities for which a portion of other-than-temporary impairment was recognized in earnings, end of period	$	4,054
Information Pertaining to Security Sales	'
	Information pertaining to security sales is as follows:
		Proceeds		Gross Gains			Gross Losses
	Three months ended September 30, 2013	$	0	$	0		$	0
	Nine months ended September 30, 2013		33,672		822			(494	)
	Three months ended September 30, 2012		4,090		103			0
	Nine months ended September 30, 2012		92,707		1,549			(149	)
Schedule of Contractual Maturity of Securities Available for Sale, Excluding Equity Securities	'
	The following is a schedule of the contractual maturity of securities available for sale, excluding equity securities, at September 30, 2013:
		Amortized		Fair
		Cost		Value
	1 year or less	$	31,904	$	31,651
	1 year – 5 years		137,688		138,186
	5 years – 10 years		163,672		162,836
	After 10 years		42,658		41,360
			375,922		374,033
	Residential and multi-family mortgage		258,466		255,039
	Pooled SBA		71,924		69,513
	Commercial mortgage		971		950
	Total debt securities	$	707,283	$	699,535

Loans_Tables

Loans (Tables)	9 Months Ended
	Sep. 30, 2013
Receivables [Abstract]	'
Schedule of Net Loans	'
	Total net loans at September 30, 2013 and December 31, 2012 are summarized as follows:
		September 30,			December 31,
		2013			2012
	Commercial, industrial, and agricultural	$	258,889		$	257,091
	Commercial mortgages		305,840			261,791
	Residential real estate		400,649			347,904
	Consumer		62,187			58,668
	Credit cards		4,800			4,800
	Overdrafts		510			971
	Less:     unearned discount		(3,904	)		(3,401	)
	allowance for loan losses		(17,221	)		(14,060	)
	Loans, net	$	1,011,750		$	913,764
Allowance for Loan Losses	'
	Transactions in the allowance for loan losses for the three months ended September 30, 2013 were as follows:
		Commercial,						Residential
		Industrial, and			Commercial			Real						Credit
		Agricultural			Mortgages			Estate			Consumer			Cards			Overdrafts			Total
	Allowance for loan losses, July 1, 2013	$	5,338		$	5,896		$	2,508		$	1,555		$	55		$	148		$	15,500
	Charge-offs		(169	)		(4	)		(57	)		(269	)		(19	)		(72	)		(590	)
	Recoveries		0			1,424			1			21			3			16			1,465
	Provision (benefit) for loan losses		384			(275	)		189			454			18			76			846
	Allowance for loan losses, September 30, 2013	$	5,553		$	7,041		$	2,641		$	1,761		$	57		$	168		$	17,221
	Transactions in the allowance for loan losses for the nine months ended September 30, 2013 were as follows:
		Commercial,						Residential
		Industrial, and			Commercial			Real						Credit
		Agricultural			Mortgages			Estate			Consumer			Cards			Overdrafts			Total
	Allowance for loan losses, January 1, 2013	$	4,940		$	4,697		$	2,466		$	1,699		$	83		$	175		$	14,060
	Charge-offs		(253	)		(1,534	)		(398	)		(946	)		(48	)		(163	)		(3,342	)
	Recoveries		7			1,427			5			95			13			65			1,612
	Provision (benefit) for loan losses		859			2,451			568			913			9			91			4,891
	Allowance for loan losses, September 30, 2013	$	5,553		$	7,041		$	2,641		$	1,761		$	57		$	168		$	17,221
	Transactions in the allowance for loan losses for the three months ended September 30, 2012 were as follows:
		Commercial,						Residential
		Industrial, and			Commercial			Real						Credit
		Agricultural			Mortgages			Estate			Consumer			Cards			Overdrafts			Total
	Allowance for loan losses, July 1, 2012	$	5,115		$	4,553		$	2,225		$	1,568		$	81		$	148		$	13,690
	Charge-offs		(751	)		(165	)		(7	)		(252	)		(22	)		(80	)		(1,277	)
	Recoveries		6			0			1			18			1			22			48
	Provision (benefit) for loan losses		103			504			113			372			19			77			1,188
	Allowance for loan losses, September 30, 2012	$	4,473		$	4,892		$	2,332		$	1,706		$	79		$	167		$	13,649
	Transactions in the allowance for loan losses for the nine months ended September 30, 2012 were as follows:
		Commercial,						Residential
		Industrial, and			Commercial			Real						Credit
		Agricultural			Mortgages			Estate			Consumer			Cards			Overdrafts			Total
	Allowance for loan losses, January 1, 2012	$	4,511		$	4,470		$	1,991		$	1,404		$	71		$	168		$	12,615
	Charge-offs		(1,398	)		(401	)		(231	)		(890	)		(55	)		(197	)		(3,172	)
	Recoveries		14			0			1			67			8			78			168
	Provision for loan losses		1,346			823			571			1,125			55			118			4,038
	Allowance for loan losses, September 30, 2012	$	4,473		$	4,892		$	2,332		$	1,706		$	79		$	167		$	13,649
Allowance for Loan Losses and Recorded Investment in Loans by Portfolio Segment	'
	The following table presents the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment and is based on the Corporation’s impairment method as of September 30, 2013 and December 31, 2012. The recorded investment in loans excludes accrued interest due to its insignificance.
	September 30, 2013
		Commercial,			Commercial			Residential			Consumer			Credit			Overdrafts			Total
		Industrial, and			Mortgages			Real						Cards
		Agricultural						Estate
	Allowance for loan losses:
	Ending allowance balance attributable to loans:
	Individually evaluated for impairment	$	573		$	932		$	0		$	0		$	0		$	0		$	1,505
	Collectively evaluated for impairment		4,980			4,209			2,641			1,761			57			168			13,816
	Modified in a troubled debt restructuring		0			1,900			0			0			0			0			1,900
	Total ending allowance balance	$	5,553		$	7,041		$	2,641		$	1,761		$	57		$	168		$	17,221
	Loans:
	Loans individually evaluated for impairment	$	1,774		$	4,252		$	64		$	0		$	0		$	0		$	6,090
	Loans collectively evaluated for impairment		255,813			289,635			400,585			58,283			4,800			510			1,009,626
	Loans modified in a troubled debt restructuring		1,302			11,953			0			0			0			0			13,255
	Total ending loans balance	$	258.889		$	305,840		$	400,649		$	58,283		$	4,800		$	510		$	1,028,971
	December 31, 2012
		Commercial,			Commercial			Residential			Consumer			Credit			Overdrafts			Total
		Industrial, and			Mortgages			Real						Cards
		Agricultural						Estate
	Allowance for loan losses:
	Ending allowance balance attributable to loans:
	Individually evaluated for impairment	$	541		$	131		$	81		$	0		$	0		$	0		$	753
	Collectively evaluated for impairment		4,399			3,467			2,385			1,699			83			175			12,208
	Modified in a troubled debt restructuring		0			1,099			0			0			0			0			1,099
	Total ending allowance balance	$	4,940		$	4,697		$	2,466		$	1,699		$	83		$	175		$	14,060
	Loans:
	Loans individually evaluated for impairment	$	2,623		$	10,683		$	593		$	0		$	0		$	0		$	13,899
	Loans collectively evaluated for impairment		253,048			240,907			347,311			55,267			4,800			971			902,304
	Loans modified in a troubled debt restructuring		1,420			10,201			0			0			0			0			11,621
	Total ending loans balance	$	257,091		$	261,791		$	347,904		$	55,267		$	4,800		$	971		$	927,824
Loans Individually Evaluated for Impairment by Portfolio Segment	'
	The following tables present information related to loans individually evaluated for impairment by portfolio segment as of September 30, 2013 and December 31, 2012 and for the three and nine months ended September 30, 2013 and 2012:
	September 30, 2013
		Unpaid Principal			Recorded			Allowance for Loan
		Balance			Investment			Losses Allocated
	With an allowance recorded:
	Commercial, industrial, and agricultural	$	1,836		$	1,085		$	573
	Commercial mortgage		12,017			9,985			2,832
	Residential real estate		0			0			0
	With no related allowance recorded:
	Commercial, industrial, and agricultural		2,604			1,991			0
	Commercial mortgage		6,246			6,220			0
	Residential real estate		149			64			0
	Total	$	22,852		$	19,345		$	3,405
	December 31, 2012
		Unpaid Principal			Recorded			Allowance for Loan
		Balance			Investment			Losses Allocated
	With an allowance recorded:
	Commercial, industrial, and agricultural	$	2,542		$	1,792		$	541
	Commercial mortgage		5,870			5,329			1,230
	Residential real estate		416			381			81
	With no related allowance recorded:
	Commercial, industrial, and agricultural		2,804			2,251			0
	Commercial mortgage		17,285			15,555			0
	Residential real estate		308			212			0
	Total	$	29,225		$	25,520		$	1,852
Impaired Financing Receivables with Related and not Related Allowances	'
		Three Months Ended									Nine Months Ended
		September 30, 2013									September 30, 2013
		Average			Interest			Cash Basis			Average			Interest			Cash Basis
		Recorded			Income			Interest			Recorded			Income			Interest
		Investment			Recognized			Recognized			Investment			Recognized			Recognized
	With an allowance recorded:
	Commercial, industrial, and agricultural	$	1,267		$	3		$	3		$	1,439		$	4		$	4
	Commercial mortgage		8,337			0			0			7,657			3			3
	Residential real estate		0			1			1			191			4			4
	With no related allowance recorded:
	Commercial, industrial, and agricultural		2,055			0			0			2,121			0			0
	Commercial mortgage		10,602			0			0			10,888			0			0
	Residential real estate		69			0			0			138			0			0
	Total	$	22,330		$	4		$	4		$	22,434		$	11		$	11
		Three Months Ended									Nine Months Ended
		September 30, 2012									September 30, 2012
		Average			Interest			Cash Basis			Average			Interest			Cash Basis
		Recorded			Income			Interest			Recorded			Income			Interest
		Investment			Recognized			Recognized			Investment			Recognized			Recognized
	With an allowance recorded:
	Commercial, industrial, and agricultural	$	4,140		$	0		$	0		$	3,406		$	3		$	3
	Commercial mortgage		6,180			3			3			5,549			3			3
	Residential real estate		476			3			3			322			11			11
	With no related allowance recorded:
	Commercial, industrial, and agricultural		3,506			0			0			3,459			0			0
	Commercial mortgage		11,971			0			0			12,016			0			0
	Residential real estate		151			0			0			75			0			0
	Total	$	26,424		$	6		$	6		$	24,827		$	17		$	17
Nonaccrual Loans and Loans Past Due over 90 Days Still Accruing Interest by Class of Loans	'
	The following table presents the recorded investment in nonaccrual loans and loans past due over 90 days still accruing interest by class of loans as of September 30, 2013 and December 31, 2012:
		September 30, 2013						December 31, 2012
		Nonaccrual			Past Due			Nonaccrual			Past Due
					Over 90 Days						Over 90 Days
					Still on Accrual						Still on Accrual
	Commercial, industrial, and agricultural	$	2,566		$	0		$	3,073		$	0
	Commercial mortgages		8,946			0			8,570			109
	Residential real estate		1,993			58			2,792			18
	Consumer		683			11			10			217
	Credit cards		0			54			0			13
	Total	$	14,188		$	123		$	14,445		$	357
Aging of Recorded Investment in Past Due Loans	'
	The following table presents the aging of the recorded investment in past due loans as of September 30, 2013 and December 31, 2012 by class of loans.
	September 30, 2013
		30-59 Days			60-89 Days			Greater Than			Total Past			Loans Not			Total
		Past Due			Past Due			90 Days			Due			Past Due
								Past Due
	Commercial, industrial, and agricultural	$	126		$	523		$	2,478		$	3,127		$	255,762		$	258,889
	Commercial mortgages		1,173			0			5,784			6,957			298,883			305,840
	Residential real estate		860			949			1,954			3,763			396,886			400,649
	Consumer		569			266			694			1,529			56,754			58,283
	Credit cards		24			23			54			101			4,699			4,800
	Overdrafts		0			0			0			0			510			510
	Total	$	2,752		$	1,761		$	10,964		$	15,477		$	1,013,494		$	1,028,971
	December 31, 2012
		30-59 Days			60-89 Days			Greater Than			Total Past			Loans Not			Total
		Past Due			Past Due			90 Days Past			Due			Past Due
								Due
	Commercial, industrial, and agricultural	$	724		$	157		$	2,968		$	3,849		$	253,242		$	257,091
	Commercial mortgages		1,162			3,197			8,679			13,038			248,753			261,791
	Residential real estate		1,390			641			2,700			4,731			343,173			347,904
	Consumer		724			203			227			1,154			54,113			55,267
	Credit cards		39			9			13			61			4,739			4,800
	Overdrafts		0			0			0			0			971			971
	Total	$	4,039		$	4,207		$	14,587		$	22,833		$	904,991		$	927,824
Restructured in Troubled Debt	'
	The following table presents the number of loans, loan balances, and specific reserves for loans that have been restructured in a troubled debt restructuring as of September 30, 2013 and December 31, 2012.
		September 30, 2013									December 31, 2012
		Number of			Loan			Specific			Number of			Loan			Specific
		Loans			Balance			Reserve			Loans			Balance			Reserve
	Commercial, industrial, and agricultural		2		$	1,302		$	0			2		$	1,420		$	0
	Commercial mortgages		10			11,953			1,900			8			10,201			1,099
	Residential real estate		0			0			0			0			0			0
	Consumer		0			0			0			0			0			0
	Credit cards		0			0			0			0			0			0
	Total		12		$	13,255		$	1,900			10		$	11,621		$	1,099
Loans by Class Modified as Troubled Debt Restructurings	'
	The following tables present loans by class modified as troubled debt restructurings that occurred during the nine months ended September 30, 2013 and 2012. There was one loan modified as a troubled debt restructuring during the three months ended September 30, 2013, and no loans modified as troubled debt restructurings during the three months ended September 30, 2012.
		Nine Months Ended September 30, 2013
		Number of			Pre-Modification			Post-Modification
		Loans			Outstanding Recorded			Outstanding  Recorded
					Investment			Investment
	Commercial, industrial, and agricultural		0		$	0		$	0
	Commercial mortgages		2			3,615			3,549
	Residential real estate		0			0			0
	Consumer		0			0			0
	Credit cards		0			0			0
	Total		2		$	3,615		$	3,549
		Nine Months Ended September 30, 2012
		Number of			Pre-Modification			Post-Modification
		Loans			Outstanding Recorded			Outstanding  Recorded
					Investment			Investment
	Commercial, industrial, and agricultural		1		$	310		$	310
	Commercial mortgages		4			2,556			2,556
	Residential real estate		0			0			0
	Consumer		0			0			0
	Credit cards		0			0			0
	Total		5		$	2,866		$	2,866
Schedule of Loan Assigned Risk Rating within 12 Months of Balance Sheet Date	'
	All loans included in the following tables have been assigned a risk rating within 12 months of the balance sheet date.
	September 30, 2013
					Special
		Pass			Mention			Substandard			Doubtful			Total
	Commercial, industrial, and agricultural	$	230,412		$	6,997		$	21,349		$	131		$	258,889
	Commercial mortgages		263,115			9,956			30,040			2,729			305,840
	Total	$	493,527		$	16,953		$	51,389		$	2,860		$	564,729
	December 31, 2012
					Special
		Pass			Mention			Substandard			Doubtful			Total
	Commercial, industrial, and agricultural	$	234,835		$	6,641		$	15,459		$	156		$	257,091
	Commercial mortgages		225,294			12,294			23,501			702			261,791
	Total	$	460,129		$	18,935		$	38,960		$	858		$	518,882
Recorded Investment in Residential and Consumer Loan Based on Payment Activity	'
	The following table presents the recorded investment in residential, consumer, and credit card loans based on payment activity as of September 30, 2013 and December 31, 2012:
		September 30, 2013									December 31, 2012
		Residential						Credit			Residential						Credit
		Real Estate			Consumer			Cards			Real Estate			Consumer			Cards
	Performing	$	398,598		$	57,589		$	4,746		$	345,094		$	55,040		$	4,787
	Non-performing		2,051			694			54			2,810			227			13
	Total	$	400,649		$	58,283		$	4,800		$	347,904		$	55,267		$	4,800
Summary of Holiday's Loan Portfolio	'
	Holiday’s loan portfolio is summarized as follows at September 30, 2013 and December 31, 2012:
		September 30,			December 31,
		2013			2012
	Consumer	$	23,909		$	21,535
	Residential real estate		1,397			954
	Less: unearned discount		(3,904	)		(3,401	)
	Total	$	21,402		$	19,088

Deposits_Tables

Deposits (Tables)	9 Months Ended
	Sep. 30, 2013
Banking And Thrift [Abstract]	'
Total Deposits	'
	Total deposits at September 30, 2013 and December 31, 2012 are summarized as follows (in thousands):
		Percentage
		Change			September 30, 2013		December 31, 2012
	Checking, non-interest bearing		8.1	%	$	189,362	$	175,239
	Checking, interest bearing		11.3	%		374,826		336,911
	Savings accounts		5.5	%		801,677		759,910
	Certificates of deposit		(12.5	%)		186,416		212,943
			4.5	%	$	1,552,281	$	1,485,003

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Computation of Basic and Diluted Earnings Per Share	'
	The computation of basic and diluted earnings per share is shown below (in thousands except per share data):
		Three months ended						Nine months ended
		September 30,						September 30,
		2013			2012			2013			2012
	Net income per consolidated statements of income	$	4,703		$	4,563		$	11,951		$	13,246
	Net earnings allocated to participating securities		(21	)		(17	)		(56	)		(50	)
	Net earnings allocated to common stock	$	4,682		$	4,546		$	11,895		$	13,196
	Basic earnings per common share computation:
	Distributed earnings allocated to common stock	$	2,054		$	2,045		$	6,161		$	6,130
	Undistributed earnings allocated to common stock		2,628			2,501			5,734			7,066
	Net earnings allocated to common stock	$	4,682		$	4,546		$	11,895		$	13,196
	Weighted average common shares outstanding, including shares considered participating securities		12,513			12,448			12,505			12,430
	Less: Average participating securities		(51	)		(41	)		(52	)		(42	)
	Weighted average shares		12,462			12,407			12,453			12,388
	Basic earnings per common share	$	0.38		$	0.37		$	0.96		$	1.07
	Diluted earnings per common share computation:
	Net earnings allocated to common stock	$	4,682		$	4,546		$	11,895		$	13,196
	Weighted average common shares outstanding for basic earnings per common share		12,462			12,407			12,453			12,388
	Add: Dilutive effects of assumed exercises of stock options		2			4			1			4
	Weighted average shares and dilutive potential common shares		12,464			12,411			12,454			12,392
	Diluted earnings per common share	$	0.38		$	0.37		$	0.96		$	1.06

Derivative_Instruments_Tables

Derivative Instruments (Tables)	9 Months Ended
	Sep. 30, 2013
Derivative Instruments And Hedging Activities Disclosure [Abstract]	'
Amounts and Locations of Activity Related to the Interest Rate Swaps Designated as Cash Flow Hedges within the Corporation's Consolidated Balance Sheet and Statement of Income	'
	The following tables provide information about the amounts and locations of activity related to the interest rate swaps designated as cash flow hedges within the Corporation’s consolidated balance sheet and statement of income as of September 30, 2013 and December 31, 2012 and for the three and nine months ended September 30, 2013 and 2012:
				Fair value as of
			Balance Sheet	September 30,	December 31,
			Location	2013	2012
	Interest rate contracts		Accrued interest and	($1,241)	($	1,745	)
			other liabilities
	For the Three Months		(a)	(b)	(c)		(d)		(e)
	Ended September 30, 2013
	Interest rate contracts		$8	Interest expense –	($102)		Other	$	0
				subordinated debentures			income
	For the Nine Months		(a)	(b)	(c)		(d)		(e)
	Ended September 30, 2013
	Interest rate contracts		$327	Interest expense –	($304)		Other	$	0
				subordinated debentures			income
	For the Three Months		(a)	(b)	(c)		(d)		(e)
	Ended September 30, 2012
	Interest rate contracts		($44)	Interest expense –	($98)		Other	$	0
				subordinated debentures			income
	For the Nine Months		(a)	(b)	(c)		(d)		(e)
	Ended September 30, 2012
	Interest rate contracts		($116)	Interest expense –	($290)		Other	$	0
				subordinated debentures			income
	(a)	Amount of Gain or (Loss) Recognized in Other Comprehensive Loss on Derivative (Effective Portion), net of tax
	(b)	Location of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income (Effective Portion)
	(c)	Amount of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income (Effective Portion)
	(d)	Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
	(e)	Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)

Subsequent_Event_Acquisition_o1

Subsequent Event - Acquisition of FC Banc Corp - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended	0 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Mar. 31, 2013	Oct. 11, 2013
					Farmers Citizens Bank [Member]	Farmers Citizens Bank [Member]
					Location	Subsequent Event [Member]
Business Acquisition [Line Items]	'	'	'	'	'	'
Outstanding equity interests of FC Banc Corp.	'	'	'	'	100.00%	'
Business acquisition share price	'	'	'	'	$30	$17.91
Number of branch locations	'	'	'	'	8	'
Total consideration paid to FC Banc Corp. shareholders	'	'	'	'	'	$41,600,000
Total consideration paid to FC Banc Corp. shareholders in cash	'	'	0	1,248,000	'	8,000,000
Total consideration paid to FC Banc Corp. shareholders in shares	'	'	'	'	'	1,873,879
Total value of common stock	'	'	'	'	'	33,600,000
Merger cost	$398,000	$0	$1,329,000	$0	'	'

Stock_Compensation_Additional_

Stock Compensation - Additional Information (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	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'
Number of nonqualified options or restricted stock for key employees and independent director	500,000	'	500,000	'	'
Description of award terms	'	'	'For key employees, the plan vesting is one-fourth of the granted options or restricted stock per year beginning one year after the grant date, with 100% vested on the fourth anniversary of the grant. For independent directors, the vesting schedule is one-third of the granted options per year beginning one year after the grant date, with 100% vested on the third anniversary of the grant.	'	'
Unrecognized compensation cost related to nonvested stock options granted under this plan	$0	'	$0	'	'
Stock options, granted	0	0	0	0	'
Stock options that were fully vested and exercisable	74,203	'	74,203	'	75,500
Compensation Expense	104	73	290	205	'
Key Employees [Member]	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'
Starting period of Vesting of stock based award	'	'	'1 year	'	'
Stock incentive plan, vesting per year, portion	'	'	0.25	'	'
Aggregate percentage of stock based awards to be matured	'	'	100.00%	'	'
Independent Directors [Member]	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'
Starting period of Vesting of stock based award	'	'	'1 year	'	'
Stock incentive plan, vesting per year, portion	'	'	0.33	'	'
Aggregate percentage of stock based awards to be matured	'	'	100.00%	'	'
Restricted Stock Units (RSUs) [Member]	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'
Unrecognized compensation cost related to nonvested stock options granted	$784	'	$784	'	'

Stock_Compensation_Summary_of_

Stock Compensation - Summary of Changes in Nonvested Restricted Stock Awards (Detail) (USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'	'
Nonvested at beginning of period, Shares	65,400	49,574
Granted, Shares	0	31,500
Vested, Shares	-200	-15,874
Nonvested at end of period, Shares	65,200	65,200
Nonvested at beginning of period, Weighted Average Grant Date Fair Value	$16.24	$15.37
Granted, Weighted Average Grant Date Fair Value	$0	$17.10
Vested, Weighted Average Grant Date Fair Value	$15.29	$15.23
Nonvested at end of period, Weighted Average Grant Date Fair Value	$16.24	$16.24

Fair_Value_Assets_and_Liabilit

Fair Value - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Securities Available For Sale:	'	'
Securities available for sale	$700,531	$737,311
Trading Securities:	'	'
Trading securities	4,358	4,459
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	70,509	54,169
Trading Securities:	'	'
Trading securities	4,153	4,300
Liabilities:	'	'
Interest rate swaps	0	0
Significant Other Observable Inputs (Level 2) [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	629,246	680,562
Trading Securities:	'	'
Trading securities	205	159
Liabilities:	'	'
Interest rate swaps	-1,241	-1,745
Significant Unobservable Inputs (Level 3) [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	776	2,580
Trading Securities:	'	'
Trading securities	0	0
Liabilities:	'	'
Interest rate swaps	0	0
Fair Value Measurement on Recurring Basis [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	700,531	737,311
Trading Securities:	'	'
Trading securities	4,358	4,459
Fair Value Measurement on Recurring Basis [Member] | U.S. Treasury [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	2,007	4,036
Fair Value Measurement on Recurring Basis [Member] | U.S. Government Sponsored Entities [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	177,230	163,781
Trading Securities:	'	'
Trading securities	53	58
Fair Value Measurement on Recurring Basis [Member] | States and Political Subdivisions [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	179,863	181,279
Fair Value Measurement on Recurring Basis [Member] | Residential and Multi Family Mortgage [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	255,039	316,822
Fair Value Measurement on Recurring Basis [Member] | Commercial Mortgage [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	950	1,304
Fair Value Measurement on Recurring Basis [Member] | Corporate Notes and Bonds [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	14,157	15,024
Trading Securities:	'	'
Trading securities	152	101
Fair Value Measurement on Recurring Basis [Member] | Pooled Trust Preferred [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	776	600
Fair Value Measurement on Recurring Basis [Member] | Pooled SBA [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	69,513	52,927
Fair Value Measurement on Recurring Basis [Member] | Other Securities [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	996	1,538
Fair Value Measurement on Recurring Basis [Member] | Corporate Equity Securities [Member]	'	'
Trading Securities:	'	'
Trading securities	2,998	3,117
Fair Value Measurement on Recurring Basis [Member] | Certificates of Deposit [Member]	'	'
Trading Securities:	'	'
Trading securities	253	408
Fair Value Measurement on Recurring Basis [Member] | International Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	257	287
Fair Value Measurement on Recurring Basis [Member] | Large Cap Growth Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	182	157
Fair Value Measurement on Recurring Basis [Member] | Money Market Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	86	110
Fair Value Measurement on Recurring Basis [Member] | Large Cap Value Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	121	104
Fair Value Measurement on Recurring Basis [Member] | Real Estate Investment Trust Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	40	65
Fair Value Measurement on Recurring Basis [Member] | Small Cap Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	81	26
Fair Value Measurement on Recurring Basis [Member] | Mid Cap Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	81	26
Fair Value Measurement on Recurring Basis [Member] | Interest Rate Swaps [Member]	'	'
Liabilities:	'	'
Interest rate swaps	-1,241	-1,745
Fair Value Measurement on Recurring Basis [Member] | Commodities Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	54	'
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	70,509	54,169
Trading Securities:	'	'
Trading securities	4,153	4,300
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Treasury [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Government Sponsored Entities [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	0	0
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | States and Political Subdivisions [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Residential and Multi Family Mortgage [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Commercial Mortgage [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Corporate Notes and Bonds [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	0	0
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Pooled Trust Preferred [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Pooled SBA [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	69,513	52,631
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Other Securities [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	996	1,538
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Corporate Equity Securities [Member]	'	'
Trading Securities:	'	'
Trading securities	2,998	3,117
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Certificates of Deposit [Member]	'	'
Trading Securities:	'	'
Trading securities	253	408
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | International Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	257	287
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Large Cap Growth Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	182	157
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Money Market Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	86	110
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Large Cap Value Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	121	104
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Real Estate Investment Trust Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	40	65
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Small Cap Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	81	26
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Mid Cap Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	81	26
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Interest Rate Swaps [Member]	'	'
Liabilities:	'	'
Interest rate swaps	0	0
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Commodities Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	54	'
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	629,246	680,562
Trading Securities:	'	'
Trading securities	205	159
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Treasury [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	2,007	4,036
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Government Sponsored Entities [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	177,230	163,781
Trading Securities:	'	'
Trading securities	53	58
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | States and Political Subdivisions [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	179,863	181,279
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Residential and Multi Family Mortgage [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	255,039	316,822
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Commercial Mortgage [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	950	1,304
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Corporate Notes and Bonds [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	14,157	13,044
Trading Securities:	'	'
Trading securities	152	101
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Pooled Trust Preferred [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Pooled SBA [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	0	296
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Other Securities [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Corporate Equity Securities [Member]	'	'
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Certificates of Deposit [Member]	'	'
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | International Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Large Cap Growth Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Money Market Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Large Cap Value Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Real Estate Investment Trust Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Small Cap Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Mid Cap Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Interest Rate Swaps [Member]	'	'
Liabilities:	'	'
Interest rate swaps	-1,241	-1,745
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Commodities Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	0	'
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	776	2,580
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | U.S. Treasury [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | U.S. Government Sponsored Entities [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	0	0
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | States and Political Subdivisions [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Residential and Multi Family Mortgage [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Commercial Mortgage [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Corporate Notes and Bonds [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	0	1,980
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Pooled Trust Preferred [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	776	600
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Pooled SBA [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Other Securities [Member]	'	'
Securities Available For Sale:	'	'
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Corporate Equity Securities [Member]	'	'
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Certificates of Deposit [Member]	'	'
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | International Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Large Cap Growth Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Money Market Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Large Cap Value Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Real Estate Investment Trust Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Small Cap Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Mid Cap Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Interest Rate Swaps [Member]	'	'
Liabilities:	'	'
Interest rate swaps	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Commodities Mutual Funds [Member]	'	'
Trading Securities:	'	'
Trading securities	$0	'

Fair_Value_Securities_Availabl

Fair Value - Securities Available for Sale Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3) (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
Corporate Notes and Bonds [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Beginning Balance	'	$2,071	$1,980	$2,060
Total gains or (losses):	'	'	'	'
Included in other comprehensive income	'	-86	-29	-75
Included in realized gains on available-for-sale securities	'	'	58	'
Sale of available-for-sale securities	'	'	-2,009	'
Ending Balance	0	1,985	0	1,985
Pooled Trust Preferred [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'	'	'
Beginning Balance	630	360	600	340
Total gains or (losses):	'	'	'	'
Included in other comprehensive income	146	0	176	20
Included in realized gains on available-for-sale securities	0	'	0	'
Sale of available-for-sale securities	0	'	0	'
Ending Balance	$776	$360	$776	$360

Fair_Value_Quantitative_Inform

Fair Value - Quantitative Information About Level 3 Fair Value Measurements (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Corporate Notes and Bonds [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Fair value	'	$1,980
Corporate Notes and Bonds [Member] | Constant Prepayment Rate [Member] | Discounted Cash Flow [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Input utilized one	'	0.00%
Corporate Notes and Bonds [Member] | Probability of Default [Member] | Discounted Cash Flow [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Input utilized one	'	0.00%
Corporate Notes and Bonds [Member] | Discount Rate [Member] | Discounted Cash Flow [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Input utilized one	'	9.60%
Pooled Trust Preferred [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Fair value	$776	$600
Pooled Trust Preferred [Member] | Collateral Default Rate [Member] | Discounted Cash Flow [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Input utilized two	'2% in 2013; 1.5% in 2014; 1.0% in 2015; 0.5% in 2016 and thereafter	'2% annually for 2 years; 0.36% thereafter
Pooled Trust Preferred [Member] | Yield [Member] | Discounted Cash Flow [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Input utilized one	12.00%	13.00%
Pooled Trust Preferred [Member] | Recovery Probability [Member] | Discounted Cash Flow [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Input utilized two	'	'10%, lagged 2 years
Pooled Trust Preferred [Member] | Prepayment Speed [Member] | Discounted Cash Flow [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Input utilized two	'6.7% constant prepayment rate in 2013; 2.0% constant prepayment rate in 2014 and thereafter	'

Fair_Value_Additional_Informat

Fair Value - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
	Securities	Securities	Securities	Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Transfer of securities from level 1 to level 2	$0	'	$0	$15,232,000	'
Number of securities transferred from level 2 to level 1	0	0	0	0	'
Impaired loans, recorded balance	19,345,000	'	19,345,000	'	25,520,000
Impaired loans allowance	3,405,000	'	3,405,000	'	1,852,000
Significant Other Observable Inputs (Level 2) [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Residential mortgage and asset backed securities	'	3,148,000	'	'	'
Collateral Dependent Loans [Member]	'	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'	'
Impaired loans, recorded balance	12,143,000	'	12,143,000	'	12,535,000
Impaired loans allowance	3,405,000	'	3,405,000	'	1,738,000
Impaired loans, additional provisions	$704,000	756,000	$3,233,000	$1,544,000	'

Fair_Value_Sale_Securities_Rep

Fair Value - Sale Securities Reported as Level 1 Securities as of Beginning of Period Were Transferred to Level 2 Category (Detail) (USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2012
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]	'	'	'
Securities transferred to level 2 fair value	$0	$0	$15,232,000
U.S. Government Sponsored Entities [Member]	'	'	'
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]	'	'	'
Securities transferred to level 2 fair value	'	0	2,000,000
States and Political Subdivisions [Member]	'	'	'
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]	'	'	'
Securities transferred to level 2 fair value	'	0	4,655,000
Residential Mortgage and Assets Backed [Member]	'	'	'
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]	'	'	'
Securities transferred to level 2 fair value	'	$0	$8,577,000

Fair_Value_Assets_and_Liabilit1

Fair Value - Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Commercial Mortgages [Member]	'	'
Impaired loans:	'	'
Fair value assets and liabilities measured on a nonrecurring basis	$7,474	$8,422
Commercial, Industrial, and Agricultural [Member]	'	'
Impaired loans:	'	'
Fair value assets and liabilities measured on a nonrecurring basis	1,200	1,973
Residential Real Estate [Member]	'	'
Impaired loans:	'	'
Fair value assets and liabilities measured on a nonrecurring basis	64	402
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Commercial Mortgages [Member]	'	'
Impaired loans:	'	'
Fair value assets and liabilities measured on a nonrecurring basis	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Commercial, Industrial, and Agricultural [Member]	'	'
Impaired loans:	'	'
Fair value assets and liabilities measured on a nonrecurring basis	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Residential Real Estate [Member]	'	'
Impaired loans:	'	'
Fair value assets and liabilities measured on a nonrecurring basis	0	0
Significant Other Observable Inputs (Level 2) [Member] | Commercial Mortgages [Member]	'	'
Impaired loans:	'	'
Fair value assets and liabilities measured on a nonrecurring basis	0	0
Significant Other Observable Inputs (Level 2) [Member] | Commercial, Industrial, and Agricultural [Member]	'	'
Impaired loans:	'	'
Fair value assets and liabilities measured on a nonrecurring basis	0	0
Significant Other Observable Inputs (Level 2) [Member] | Residential Real Estate [Member]	'	'
Impaired loans:	'	'
Fair value assets and liabilities measured on a nonrecurring basis	0	0
Significant Unobservable Inputs (Level 3) [Member] | Commercial Mortgages [Member]	'	'
Impaired loans:	'	'
Fair value assets and liabilities measured on a nonrecurring basis	7,474	8,422
Significant Unobservable Inputs (Level 3) [Member] | Commercial, Industrial, and Agricultural [Member]	'	'
Impaired loans:	'	'
Fair value assets and liabilities measured on a nonrecurring basis	1,200	1,973
Significant Unobservable Inputs (Level 3) [Member] | Residential Real Estate [Member]	'	'
Impaired loans:	'	'
Fair value assets and liabilities measured on a nonrecurring basis	$64	$402

Fair_Value_Quantitative_Inform1

Fair Value - Quantitative Information about Level 3 Fair Value Measurements for Financial Instruments Measured at Fair Value on Non Recurring Basis (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Impaired Loans - Commercial Mortgages [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Fair value	$7,473	$8,422
Impaired Loans - Commercial Mortgages [Member] | Minimum [Member] | Sales Comparison Valuation Technique [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Sales comparison approach	9.00%	1.00%
Impaired Loans - Commercial Mortgages [Member] | Maximum [Member] | Sales Comparison Valuation Technique [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Sales comparison approach	10.00%	39.00%
Impaired Loans - Commercial Mortgages [Member] | Weighted Average [Member] | Sales Comparison Valuation Technique [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Sales comparison approach	10.00%	19.00%
Impaired Loans - Commercial, Industrial, and Agricultural [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Fair value	1,200	1,973
Impaired Loans - Commercial, Industrial, and Agricultural [Member] | Minimum [Member] | Income Approach Valuation Technique [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Income approach	13.00%	24.00%
Impaired Loans - Commercial, Industrial, and Agricultural [Member] | Maximum [Member] | Income Approach Valuation Technique [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Income approach	32.00%	38.00%
Impaired Loans - Commercial, Industrial, and Agricultural [Member] | Weighted Average [Member] | Income Approach Valuation Technique [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Income approach	23.00%	27.00%
Impaired Loans - Residential Real Estate [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Fair value	$64	$402
Impaired Loans - Residential Real Estate [Member] | Minimum [Member] | Sales Comparison Valuation Technique [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Sales comparison approach	17.00%	10.00%
Impaired Loans - Residential Real Estate [Member] | Maximum [Member] | Sales Comparison Valuation Technique [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Sales comparison approach	26.00%	15.00%
Impaired Loans - Residential Real Estate [Member] | Weighted Average [Member] | Sales Comparison Valuation Technique [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Sales comparison approach	23.00%	11.00%

Fair_Value_Carrying_Amount_and

Fair Value - Carrying Amount and Fair Value of Financial Instruments (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
ASSETS	'	'	'	'
Cash and cash equivalents	$32,856	$31,881	$32,946	$39,703
Interest bearing time deposits with other banks	275	225	'	'
Securities available for sale	700,531	737,311	'	'
Trading securities	4,358	4,459	'	'
Loans held for sale	399	2,398	'	'
Net loans	1,011,750	913,764	'	'
FHLB and other equity interests	7,580	6,684	'	'
LIABILITIES	'	'	'	'
Deposits	-1,552,281	-1,485,003	'	'
Subordinated debentures	-20,620	-20,620	'	'
Carrying Amount [Member]	'	'	'	'
ASSETS	'	'	'	'
Cash and cash equivalents	32,856	31,881	'	'
Interest bearing time deposits with other banks	275	225	'	'
Securities available for sale	700,531	737,311	'	'
Trading securities	4,358	4,459	'	'
Loans held for sale	399	2,398	'	'
Net loans	1,011,750	913,764	'	'
FHLB and other equity interests	7,580	6,684	'	'
Accrued interest receivable	7,267	6,863	'	'
LIABILITIES	'	'	'	'
Deposits	-1,552,281	-1,485,003	'	'
FHLB and other borrowings	-122,976	-97,806	'	'
Subordinated debentures	-20,620	-20,620	'	'
Interest rate swaps	-1,241	-1,745	'	'
Accrued interest payable	-805	-1,022	'	'
Total Fair Value [Member]	'	'	'	'
ASSETS	'	'	'	'
Cash and cash equivalents	32,856	31,881	'	'
Interest bearing time deposits with other banks	281	230	'	'
Securities available for sale	700,531	737,311	'	'
Trading securities	4,358	4,459	'	'
Loans held for sale	410	2,460	'	'
Net loans	1,008,375	917,785	'	'
Accrued interest receivable	7,267	6,863	'	'
LIABILITIES	'	'	'	'
Deposits	-1,551,905	-1,487,545	'	'
FHLB and other borrowings	-122,976	-105,850	'	'
Subordinated debentures	-10,945	-10,682	'	'
Interest rate swaps	-1,241	-1,745	'	'
Accrued interest payable	-805	-1,022	'	'
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	'	'	'	'
ASSETS	'	'	'	'
Cash and cash equivalents	32,856	31,881	'	'
Interest bearing time deposits with other banks	0	0	'	'
Securities available for sale	70,509	54,169	'	'
Trading securities	4,153	4,300	'	'
Loans held for sale	0	0	'	'
Net loans	0	0	'	'
Accrued interest receivable	429	278	'	'
LIABILITIES	'	'	'	'
Deposits	-1,365,864	-1,272,060	'	'
FHLB and other borrowings	0	0	'	'
Subordinated debentures	0	0	'	'
Interest rate swaps	0	0	'	'
Accrued interest payable	-200	-301	'	'
Significant Other Observable Inputs (Level 2) [Member]	'	'	'	'
ASSETS	'	'	'	'
Cash and cash equivalents	0	0	'	'
Interest bearing time deposits with other banks	281	230	'	'
Securities available for sale	629,246	680,562	'	'
Trading securities	205	159	'	'
Loans held for sale	410	2,460	'	'
Net loans	0	0	'	'
Accrued interest receivable	3,827	3,498	'	'
LIABILITIES	'	'	'	'
Deposits	-186,041	-215,485	'	'
FHLB and other borrowings	-122,976	-105,850	'	'
Subordinated debentures	-10,945	-10,682	'	'
Interest rate swaps	-1,241	-1,745	'	'
Accrued interest payable	-590	-707	'	'
Significant Unobservable Inputs (Level 3) [Member]	'	'	'	'
ASSETS	'	'	'	'
Cash and cash equivalents	0	0	'	'
Interest bearing time deposits with other banks	0	0	'	'
Securities available for sale	776	2,580	'	'
Trading securities	0	0	'	'
Loans held for sale	0	0	'	'
Net loans	1,008,375	917,785	'	'
Accrued interest receivable	3,011	3,087	'	'
LIABILITIES	'	'	'	'
Deposits	0	0	'	'
FHLB and other borrowings	0	0	'	'
Subordinated debentures	0	0	'	'
Interest rate swaps	0	0	'	'
Accrued interest payable	($15)	($14)	'	'

Securities_Securities_Availabl

Securities - Securities Available for Sale (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	$708,303	$712,637
Unrealized Gains	11,248	28,181
Unrealized Losses	-19,020	-3,507
Fair Value	700,531	737,311
U.S. Treasury [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	2,003	4,018
Unrealized Gains	4	18
Unrealized Losses	0	0
Fair Value	2,007	4,036
U.S. Government Sponsored Entities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	179,875	157,965
Unrealized Gains	3,175	5,977
Unrealized Losses	-5,820	-161
Fair Value	177,230	163,781
States and Political Subdivisions [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	177,503	170,223
Unrealized Gains	4,416	11,113
Unrealized Losses	-2,056	-57
Fair Value	179,863	181,279
Residential and Multi Family Mortgage [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	258,466	308,800
Unrealized Gains	2,945	8,724
Unrealized Losses	-6,372	-702
Fair Value	255,039	316,822
Commercial Mortgage [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	971	1,275
Unrealized Gains	0	29
Unrealized Losses	-21	0
Fair Value	950	1,304
Corporate Notes and Bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	15,741	17,368
Unrealized Gains	56	26
Unrealized Losses	-1,640	-2,370
Fair Value	14,157	15,024
Pooled Trust Preferred [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	800	800
Unrealized Gains	0	0
Unrealized Losses	-24	-200
Fair Value	776	600
Pooled SBA [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	71,924	50,667
Unrealized Gains	652	2,277
Unrealized Losses	-3,063	-17
Fair Value	69,513	52,927
Other Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	1,020	1,521
Unrealized Gains	0	17
Unrealized Losses	-24	0
Fair Value	$996	$1,538

Securities_Additional_Informat

Securities - 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
	Securities		Securities
Schedule of Available-for-sale Securities [Line Items]	'	'	'	'	'
Number of securities holdings	0	'	0	'	'
Shareholders' equity percentage	10.00%	'	10.00%	'	'
Amortized Cost	$708,303	'	$708,303	'	$712,637
Fair Value	700,531	'	700,531	'	737,311
Number of structured pooled trust preferred securities deemed to be other-than-temporarily impaired	4	'	4	'	4
Securities	340,446	'	340,446	'	264,813
Pooled Trust Preferred [Member]	'	'	'	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'	'	'	'
Amortized Cost	800	'	800	'	800
Fair Value	776	'	776	'	600
Four Structured Pool Trust Securities [Member]	'	'	'	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'	'	'	'
Number of Pooled Trust Securities	1	'	1	'	'
Amortized Cost	0	'	0	'	0
Other than temporary impairment recognized in earnings for available for sale securities	$0	$0	$0	$0	'

Securities_Trading_Securities_

Securities - Trading Securities (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Trading securities	$4,358	$4,459
Corporate Equity Securities [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Trading securities	2,998	3,117
Certificates of Deposit [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Trading securities	253	408
International Mutual Funds [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Trading securities	257	287
Large Cap Growth Mutual Funds [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Trading securities	182	157
Large Cap Value Mutual Funds [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Trading securities	121	104
Real Estate Investment Trust Mutual Funds [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Trading securities	40	65
Corporate Notes and Bonds [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Trading securities	152	101
Mid Cap Mutual Funds [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Trading securities	81	26
Small Cap Mutual Funds [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Trading securities	81	26
U.S. Government Sponsored Entities [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Trading securities	53	58
Commodities Mutual Funds [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Trading securities	54	0
Money Market Mutual Funds [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Trading securities	$86	$110

Securities_Securities_with_Unr

Securities - Securities with Unrealized Losses Aggregated by Investment Category and Length of Time that Individual Securities have been in Continuous Unrealized Loss Position (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	$369,935	$85,252
Less than 12 Months, Unrealized Loss	-17,046	-923
12 Months or More, Fair Value	17,930	17,856
12 Months or More, Unrealized Loss	-1,974	-2,584
Total, Fair Value	387,865	103,108
Total, Unrealized Loss	-19,020	-3,507
U.S. Treasury [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	0	0
Less than 12 Months, Unrealized Loss	0	0
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Loss	0	0
Total, Fair Value	0	0
Total, Unrealized Loss	0	0
U.S. Government Sponsored Entities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	110,419	41,715
Less than 12 Months, Unrealized Loss	-5,820	-161
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Loss	0	0
Total, Fair Value	110,419	41,715
Total, Unrealized Loss	-5,820	-161
States and Political Subdivisions [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	58,955	7,857
Less than 12 Months, Unrealized Loss	-2,047	-57
12 Months or More, Fair Value	474	0
12 Months or More, Unrealized Loss	-9	0
Total, Fair Value	59,429	7,857
Total, Unrealized Loss	-2,056	-57
Residential and Multi Family Mortgage [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	157,880	32,159
Less than 12 Months, Unrealized Loss	-6,201	-688
12 Months or More, Fair Value	5,124	4,254
12 Months or More, Unrealized Loss	-171	-14
Total, Fair Value	163,004	36,413
Total, Unrealized Loss	-6,372	-702
Commercial Mortgage [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	950	0
Less than 12 Months, Unrealized Loss	-21	0
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Loss	0	0
Total, Fair Value	950	0
Total, Unrealized Loss	-21	0
Corporate Notes and Bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	0	0
Less than 12 Months, Unrealized Loss	0	0
12 Months or More, Fair Value	9,754	13,002
12 Months or More, Unrealized Loss	-1,640	-2,370
Total, Fair Value	9,754	13,002
Total, Unrealized Loss	-1,640	-2,370
Pooled Trust Preferred [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	0	0
Less than 12 Months, Unrealized Loss	0	0
12 Months or More, Fair Value	776	600
12 Months or More, Unrealized Loss	-24	-200
Total, Fair Value	776	600
Total, Unrealized Loss	-24	-200
Pooled SBA [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	40,735	3,521
Less than 12 Months, Unrealized Loss	-2,933	-17
12 Months or More, Fair Value	1,802	0
12 Months or More, Unrealized Loss	-130	0
Total, Fair Value	42,537	3,521
Total, Unrealized Loss	-3,063	-17
Other Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	996	0
Less than 12 Months, Unrealized Loss	-24	0
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Loss	0	0
Total, Fair Value	996	0
Total, Unrealized Loss	($24)	$0

Securities_RollForward_of_Othe

Securities - Roll-Forward of Other-Than-Temporary Impairment Amount Related to Credit 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
Marketable Securities [Abstract]	'	'	'	'
Balance of credit losses on debt securities for which a portion of other-than-temporary impairment was recognized in earnings, beginning of period	$4,054	$4,054	$4,054	$4,054
Additional credit loss for which other-than-temporary impairment was not previously recognized	0	0	0	0
Additional credit loss for which other-than-temporary impairment was previously recognized	0	0	0	0
Balance of credit losses on debt securities for which a portion of other-than-temporary impairment was recognized in earnings, end of period	$4,054	$4,054	$4,054	$4,054

Securities_Information_Pertain

Securities - Information Pertaining to Security Sales (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]	'	'	'	'
Proceeds	$0	$4,090	$33,672	$92,707
Gross Gains	0	103	822	1,549
Gross Losses	$0	$0	($494)	($149)

Securities_Schedule_of_Contrac

Securities - Schedule of Contractual Maturity of Securities Available for Sale, Excluding Equity Securities (Detail) (USD $)	Sep. 30, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'
1 year or less, Amortized Cost	$31,904
1 year - 5 years, Amortized Cost	137,688
5 years - 10 years, Amortized Cost	163,672
After 10 years, Amortized Cost	42,658
Total, Amortized Cost	375,922
1 year or less, Fair Value	31,651
1 year - 5 years, Fair Value	138,186
5 years - 10 years, Fair Value	162,836
After 10 years, Fair Value	41,360
Total, Fair Value	374,033
Total debt securities, Amortized Cost	707,283
Total debt securities, Fair Value	699,535
Residential and Multi Family Mortgage [Member]	'
Schedule of Available-for-sale Securities [Line Items]	'
Mortgage & asset backed securities, Amortized Cost	258,466
Mortgage & asset backed securities, Fair Value	255,039
Pooled SBA [Member]	'
Schedule of Available-for-sale Securities [Line Items]	'
Mortgage & asset backed securities, Amortized Cost	71,924
Mortgage & asset backed securities, Fair Value	69,513
Commercial Mortgage [Member]	'
Schedule of Available-for-sale Securities [Line Items]	'
Mortgage & asset backed securities, Amortized Cost	971
Mortgage & asset backed securities, Fair Value	$950

Loans_Schedule_of_Net_Loans_De

Loans - Schedule of Net Loans (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Receivables [Abstract]	'	'
Commercial, industrial, and agricultural	$258,889	$257,091
Commercial mortgages	305,840	261,791
Residential real estate	400,649	347,904
Consumer	62,187	58,668
Credit cards	4,800	4,800
Overdrafts	510	971
Less: unearned discount	-3,904	-3,401
Less: allowance for loan losses	-17,221	-14,060
Net loans	$1,011,750	$913,764

Loans_Additional_Information_D

Loans - Additional Information (Detail) (USD $)

3 Months Ended

9 Months Ended

12 Months Ended

3 Months Ended

9 Months Ended

12 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Dec. 31, 2012

Sep. 30, 2013

Mar. 31, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Dec. 31, 2012

Sep. 30, 2013

Jun. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Loans

Loans

Loans

Loans

Commercial Mortgage Loan One [Member]

Commercial Mortgage Loan One [Member]

Commercial Mortgage Loan One [Member]

Commercial Mortgage Loan One [Member]

Commercial Mortgage Loan One [Member]

Commercial Mortgage Loan One [Member]

Commercial Mortgage Loan Two [Member]

Commercial Mortgage Loan Two [Member]

Commercial Mortgage Loan Two [Member]

Commercial Mortgage Loan Three [Member]

Minimum [Member]

Maximum [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net unamortized loan costs and fees

$322,000

'

$322,000

'

$232,000

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of comprised loan, commercial, industrial and agricultural loans

26.00%

'

26.00%

'

28.00%

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of comprised loan, commercial mortgage loans

30.00%

'

30.00%

'

28.00%

'

'

'

'

'

'

'

'

'

'

'

'

Risk rating to commercial loans

250,000

'

250,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of loan-to-value to business equipment

'

'

80.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of loan-to-value to accounts receivable

'

'

75.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of loan-to-value to business inventory

'

'

60.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of loan-to-value to real estate

'

'

85.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of residential real estate loan in portfolio

40.00%

'

40.00%

'

37.00%

'

'

'

'

'

'

'

'

'

'

'

'

Maximum percentage of consumer loan and credit card in portfolio

10.00%

'

10.00%

'

10.00%

'

'

'

'

'

'

'

'

'

'

'

'

Number of loans modified as troubled debt restructuring

1

0

12

'

10

'

'

'

'

'

'

'

'

'

'

'

'

Additional provision for loan losses

562,000

0

562,000

0

'

127,000

'

503,000

262,000

503,000

'

0

'

588,000

562,000

'

'

Reduction in stated interest rate modification having loan range period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'4 years

'15 years

Extension of maturity date modification having loan range period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'4 years

'18 years

Principal balances forgiven in connection with loan restructuring

0

'

0

'

0

'

'

'

'

'

'

'

'

'

'

'

'

Troubled debt restructuring charged off

'

'

'

'

'

'

595,000

'

'

'

'

'

'

'

'

'

'

Commercial mortgage loan balance amount

'

'

'

'

'

'

'

'

'

'

1,660,000

'

1,086,000

'

'

'

'

Minimum period to be considered for loan to have defaulted

'

'

'90 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impaired commercial mortgage loan placed on non-accrual status, modified as TDRs

$13,255,000

'

$13,255,000

'

$11,621,000

'

'

'

'

'

'

'

'

'

$3,269,000

'

'

Outstanding balance of semi annual loans

'

'

'Greater than $1 million

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding balance of annual loans

'

'

'Less than $1 million

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loans_Allowance_for_Loan_Losse

Loans - Allowance for Loan 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
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowances for loan losses, Beginning Balance	$15,500	$13,690	$14,060	$12,615
Charge-offs	-590	-1,277	-3,342	-3,172
Recoveries	1,465	48	1,612	168
Provision (benefit) for loan losses	846	1,188	4,891	4,038
Allowances for loan losses, Ending Balance	17,221	13,649	17,221	13,649
Commercial, Industrial, and Agricultural [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowances for loan losses, Beginning Balance	5,338	5,115	4,940	4,511
Charge-offs	-169	-751	-253	-1,398
Recoveries	0	6	7	14
Provision (benefit) for loan losses	384	103	859	1,346
Allowances for loan losses, Ending Balance	5,553	4,473	5,553	4,473
Commercial Mortgages [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowances for loan losses, Beginning Balance	5,896	4,553	4,697	4,470
Charge-offs	-4	-165	-1,534	-401
Recoveries	1,424	0	1,427	0
Provision (benefit) for loan losses	-275	504	2,451	823
Allowances for loan losses, Ending Balance	7,041	4,892	7,041	4,892
Residential Real Estate [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowances for loan losses, Beginning Balance	2,508	2,225	2,466	1,991
Charge-offs	-57	-7	-398	-231
Recoveries	1	1	5	1
Provision (benefit) for loan losses	189	113	568	571
Allowances for loan losses, Ending Balance	2,641	2,332	2,641	2,332
Consumer [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowances for loan losses, Beginning Balance	1,555	1,568	1,699	1,404
Charge-offs	-269	-252	-946	-890
Recoveries	21	18	95	67
Provision (benefit) for loan losses	454	372	913	1,125
Allowances for loan losses, Ending Balance	1,761	1,706	1,761	1,706
Credit Cards [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowances for loan losses, Beginning Balance	55	81	83	71
Charge-offs	-19	-22	-48	-55
Recoveries	3	1	13	8
Provision (benefit) for loan losses	18	19	9	55
Allowances for loan losses, Ending Balance	57	79	57	79
Overdrafts [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowances for loan losses, Beginning Balance	148	148	175	168
Charge-offs	-72	-80	-163	-197
Recoveries	16	22	65	78
Provision (benefit) for loan losses	76	77	91	118
Allowances for loan losses, Ending Balance	$168	$167	$168	$167

Loans_Allowance_for_Loan_Losse1

Loans - Allowance for Loan Losses and Recorded Investment in Loans by Portfolio Segment (Detail) (USD $)	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Ending allowance balance attributable to loans:	'	'	'	'	'	'
Allowance for loan losses, Individually evaluated for impairment	$1,505	'	$753	'	'	'
Allowance for loan losses, Collectively evaluated for impairment	13,816	'	12,208	'	'	'
Allowance for loan losses, Modified in a troubled debt restructuring	1,900	'	1,099	'	'	'
Total ending allowance balance	17,221	15,500	14,060	13,649	13,690	12,615
Loans:	'	'	'	'	'	'
Loans individually evaluated for impairment	6,090	'	13,899	'	'	'
Loans collectively evaluated for impairment	1,009,626	'	902,304	'	'	'
Loans modified in a troubled debt restructuring	13,255	'	11,621	'	'	'
Total ending loans balance	1,028,971	'	927,824	'	'	'
Commercial, Industrial, and Agricultural [Member]	'	'	'	'	'	'
Ending allowance balance attributable to loans:	'	'	'	'	'	'
Allowance for loan losses, Individually evaluated for impairment	573	'	541	'	'	'
Allowance for loan losses, Collectively evaluated for impairment	4,980	'	4,399	'	'	'
Allowance for loan losses, Modified in a troubled debt restructuring	0	'	0	'	'	'
Total ending allowance balance	5,553	5,338	4,940	4,473	5,115	4,511
Loans:	'	'	'	'	'	'
Loans individually evaluated for impairment	1,774	'	2,623	'	'	'
Loans collectively evaluated for impairment	255,813	'	253,048	'	'	'
Loans modified in a troubled debt restructuring	1,302	'	1,420	'	'	'
Total ending loans balance	258,889	'	257,091	'	'	'
Commercial Mortgages [Member]	'	'	'	'	'	'
Ending allowance balance attributable to loans:	'	'	'	'	'	'
Allowance for loan losses, Individually evaluated for impairment	932	'	131	'	'	'
Allowance for loan losses, Collectively evaluated for impairment	4,209	'	3,467	'	'	'
Allowance for loan losses, Modified in a troubled debt restructuring	1,900	'	1,099	'	'	'
Total ending allowance balance	7,041	5,896	4,697	4,892	4,553	4,470
Loans:	'	'	'	'	'	'
Loans individually evaluated for impairment	4,252	'	10,683	'	'	'
Loans collectively evaluated for impairment	289,635	'	240,907	'	'	'
Loans modified in a troubled debt restructuring	11,953	'	10,201	'	'	'
Total ending loans balance	305,840	'	261,791	'	'	'
Residential Real Estate [Member]	'	'	'	'	'	'
Ending allowance balance attributable to loans:	'	'	'	'	'	'
Allowance for loan losses, Individually evaluated for impairment	0	'	81	'	'	'
Allowance for loan losses, Collectively evaluated for impairment	2,641	'	2,385	'	'	'
Allowance for loan losses, Modified in a troubled debt restructuring	0	'	0	'	'	'
Total ending allowance balance	2,641	2,508	2,466	2,332	2,225	1,991
Loans:	'	'	'	'	'	'
Loans individually evaluated for impairment	64	'	593	'	'	'
Loans collectively evaluated for impairment	400,585	'	347,311	'	'	'
Loans modified in a troubled debt restructuring	0	'	0	'	'	'
Total ending loans balance	400,649	'	347,904	'	'	'
Consumer [Member]	'	'	'	'	'	'
Ending allowance balance attributable to loans:	'	'	'	'	'	'
Allowance for loan losses, Individually evaluated for impairment	0	'	0	'	'	'
Allowance for loan losses, Collectively evaluated for impairment	1,761	'	1,699	'	'	'
Allowance for loan losses, Modified in a troubled debt restructuring	0	'	0	'	'	'
Total ending allowance balance	1,761	1,555	1,699	1,706	1,568	1,404
Loans:	'	'	'	'	'	'
Loans individually evaluated for impairment	0	'	0	'	'	'
Loans collectively evaluated for impairment	58,283	'	55,267	'	'	'
Loans modified in a troubled debt restructuring	0	'	0	'	'	'
Total ending loans balance	58,283	'	55,267	'	'	'
Credit Cards [Member]	'	'	'	'	'	'
Ending allowance balance attributable to loans:	'	'	'	'	'	'
Allowance for loan losses, Individually evaluated for impairment	0	'	0	'	'	'
Allowance for loan losses, Collectively evaluated for impairment	57	'	83	'	'	'
Allowance for loan losses, Modified in a troubled debt restructuring	0	'	0	'	'	'
Total ending allowance balance	57	55	83	79	81	71
Loans:	'	'	'	'	'	'
Loans individually evaluated for impairment	0	'	0	'	'	'
Loans collectively evaluated for impairment	4,800	'	4,800	'	'	'
Loans modified in a troubled debt restructuring	0	'	0	'	'	'
Total ending loans balance	4,800	'	4,800	'	'	'
Overdrafts [Member]	'	'	'	'	'	'
Ending allowance balance attributable to loans:	'	'	'	'	'	'
Allowance for loan losses, Individually evaluated for impairment	0	'	0	'	'	'
Allowance for loan losses, Collectively evaluated for impairment	168	'	175	'	'	'
Allowance for loan losses, Modified in a troubled debt restructuring	0	'	0	'	'	'
Total ending allowance balance	168	148	175	167	148	168
Loans:	'	'	'	'	'	'
Loans individually evaluated for impairment	0	'	0	'	'	'
Loans collectively evaluated for impairment	510	'	971	'	'	'
Loans modified in a troubled debt restructuring	0	'	0	'	'	'
Total ending loans balance	$510	'	$971	'	'	'

Loans_Loans_Individually_Evalu

Loans - Loans Individually Evaluated for Impairment by Portfolio Segment (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance, Total	$22,852	$29,225
Recorded Investment, Total	19,345	25,520
Allowance for Loan Losses Allocated	3,405	1,852
Commercial, Industrial, and Agricultural [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance, Related Allowance	1,836	2,542
Recorded Investment, Related Allowance	1,085	1,792
Allowance for Loan Losses Allocated	573	541
Unpaid Principal Balance, No Related Allowance	2,604	2,804
Recorded Investment, No Related Allowance	1,991	2,251
Allowance for Loan Losses Allocated, No Related Allowance	0	0
Commercial Mortgages [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance, Related Allowance	12,017	5,870
Recorded Investment, Related Allowance	9,985	5,329
Allowance for Loan Losses Allocated	2,832	1,230
Unpaid Principal Balance, No Related Allowance	6,246	17,285
Recorded Investment, No Related Allowance	6,220	15,555
Allowance for Loan Losses Allocated, No Related Allowance	0	0
Residential Real Estate [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid Principal Balance, Related Allowance	0	416
Recorded Investment, Related Allowance	0	381
Allowance for Loan Losses Allocated	0	81
Unpaid Principal Balance, No Related Allowance	149	308
Recorded Investment, No Related Allowance	64	212
Allowance for Loan Losses Allocated, No Related Allowance	$0	$0

Loans_Impaired_Financing_Recei

Loans - Impaired Financing Receivables with Related and not Related Allowances (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
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment, Total	$22,330	$26,424	$22,434	$24,827
Interest Income Recognized, Total	4	6	11	17
Cash Basis Interest Recognized, Total	4	6	11	17
Commercial, Industrial, and Agricultural [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment, Related Allowance	1,267	4,140	1,439	3,406
Interest Income Recognized, Related Allowance	3	0	4	3
Cash Basis Interest Recognized, Related Allowance	3	0	4	3
Average Recorded Investment, No Related Allowance	2,055	3,506	2,121	3,459
Interest Income Recognized, No Related Allowance	0	0	0	0
Cash Basis Interest Recognized, No Related Allowance	0	0	0	0
Commercial Mortgages [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment, Related Allowance	8,337	6,180	7,657	5,549
Interest Income Recognized, Related Allowance	0	3	3	3
Cash Basis Interest Recognized, Related Allowance	0	3	3	3
Average Recorded Investment, No Related Allowance	10,602	11,971	10,888	12,016
Interest Income Recognized, No Related Allowance	0	0	0	0
Cash Basis Interest Recognized, No Related Allowance	0	0	0	0
Residential Real Estate [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment, Related Allowance	0	476	191	322
Interest Income Recognized, Related Allowance	1	3	4	11
Cash Basis Interest Recognized, Related Allowance	1	3	4	11
Average Recorded Investment, No Related Allowance	69	151	138	75
Interest Income Recognized, No Related Allowance	0	0	0	0
Cash Basis Interest Recognized, No Related Allowance	$0	$0	$0	$0

Loans_Nonaccrual_Loans_and_Loa

Loans - Nonaccrual Loans and Loans Past Due over 90 Days Still Accruing Interest by Class of Loans (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Nonaccrual	$14,188	$14,445
Past Due Over 90 Days Still on Accrual	123	357
Commercial, Industrial, and Agricultural [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Nonaccrual	2,566	3,073
Past Due Over 90 Days Still on Accrual	0	0
Commercial Mortgages [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Nonaccrual	8,946	8,570
Past Due Over 90 Days Still on Accrual	0	109
Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Nonaccrual	1,993	2,792
Past Due Over 90 Days Still on Accrual	58	18
Consumer [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Nonaccrual	683	10
Past Due Over 90 Days Still on Accrual	11	217
Credit Cards [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Nonaccrual	0	0
Past Due Over 90 Days Still on Accrual	$54	$13

Loans_Aging_of_Recorded_Invest

Loans - Aging of Recorded Investment in 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	$2,752	$4,039
60-89 Days Past Due	1,761	4,207
Greater Than 90 Days Past Due	10,964	14,587
Total Past Due	15,477	22,833
Loans Not Past Due	1,013,494	904,991
Total	1,032,875	931,225
Commercial, Industrial, and Agricultural [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	126	724
60-89 Days Past Due	523	157
Greater Than 90 Days Past Due	2,478	2,968
Total Past Due	3,127	3,849
Loans Not Past Due	255,762	253,242
Total	258,889	257,091
Commercial Mortgages [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	1,173	1,162
60-89 Days Past Due	0	3,197
Greater Than 90 Days Past Due	5,784	8,679
Total Past Due	6,957	13,038
Loans Not Past Due	298,883	248,753
Total	305,840	261,791
Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	860	1,390
60-89 Days Past Due	949	641
Greater Than 90 Days Past Due	1,954	2,700
Total Past Due	3,763	4,731
Loans Not Past Due	396,886	343,173
Total	400,649	347,904
Consumer [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	569	724
60-89 Days Past Due	266	203
Greater Than 90 Days Past Due	694	227
Total Past Due	1,529	1,154
Loans Not Past Due	56,754	54,113
Total	58,283	55,267
Credit Cards [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	24	39
60-89 Days Past Due	23	9
Greater Than 90 Days Past Due	54	13
Total Past Due	101	61
Loans Not Past Due	4,699	4,739
Total	4,800	4,800
Overdrafts [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
Greater Than 90 Days Past Due	0	0
Total Past Due	0	0
Loans Not Past Due	510	971
Total	$510	$971

Loans_Restructured_in_Troubled

Loans - Restructured in Troubled Debt (Detail) (USD $)	3 Months Ended		9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Dec. 31, 2012
	Loans	Loans	Loans	Loans
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Loans	1	0	12	10
Loans Balance	$13,255	'	$13,255	$11,621
Specific Reserve	1,900	'	1,900	1,099
Commercial, Industrial, and Agricultural [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Loans	'	'	2	2
Loans Balance	1,302	'	1,302	1,420
Specific Reserve	0	'	0	0
Commercial Mortgages [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Loans	'	'	10	8
Loans Balance	11,953	'	11,953	10,201
Specific Reserve	1,900	'	1,900	1,099
Residential Real Estate [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Loans	'	'	0	0
Loans Balance	0	'	0	0
Specific Reserve	0	'	0	0
Consumer [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Loans	'	'	0	0
Loans Balance	0	'	0	0
Specific Reserve	0	'	0	0
Credit Cards [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Loans	'	'	0	0
Loans Balance	0	'	0	0
Specific Reserve	$0	'	$0	$0

Loans_Loans_by_Class_Modified_

Loans - Loans by Class Modified as Troubled Debt Restructurings (Detail) (USD $)

3 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

In Thousands, unless otherwise specified

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2012

Loans

Loans

Loans

Loans

Trouble Debt Restructuring [Member]

Trouble Debt Restructuring [Member]

Commercial, Industrial, and Agricultural [Member]

Commercial, Industrial, and Agricultural [Member]

Commercial, Industrial, and Agricultural [Member]

Commercial, Industrial, and Agricultural [Member]

Commercial Mortgages [Member]

Commercial Mortgages [Member]

Commercial Mortgages [Member]

Commercial Mortgages [Member]

Residential Real Estate [Member]

Residential Real Estate [Member]

Residential Real Estate [Member]

Residential Real Estate [Member]

Consumer [Member]

Consumer [Member]

Consumer [Member]

Consumer [Member]

Credit Cards [Member]

Credit Cards [Member]

Credit Cards [Member]

Credit Cards [Member]

Loans

Loans

Loans

Loans

Trouble Debt Restructuring [Member]

Trouble Debt Restructuring [Member]

Loans

Loans

Trouble Debt Restructuring [Member]

Trouble Debt Restructuring [Member]

Loans

Loans

Trouble Debt Restructuring [Member]

Trouble Debt Restructuring [Member]

Loans

Loans

Trouble Debt Restructuring [Member]

Trouble Debt Restructuring [Member]

Loans

Loans

Trouble Debt Restructuring [Member]

Trouble Debt Restructuring [Member]

Loans

Loans

Loans

Loans

Loans

Loans

Loans

Loans

Loans

Loans

Financing Receivable, Modifications [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of Loans

1

0

12

10

2

5

2

2

0

1

10

8

2

4

0

0

0

0

0

0

0

0

0

0

0

0

Pre-Modification Outstanding Recorded Investment

'

'

'

'

$3,615

$2,866

'

'

$0

$310

'

'

$3,615

$2,556

'

'

$0

$0

'

'

$0

$0

'

'

$0

$0

Post-Modification Outstanding Recorded Investment

'

'

'

'

$3,549

$2,866

'

'

$0

$310

'

'

$3,549

$2,556

'

'

$0

$0

'

'

$0

$0

'

'

$0

$0

Loans_Schedule_of_Loan_Assigne

Loans - Schedule of Loan Assigned Risk Rating within 12 Months of Balance Sheet Date (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing receivable recorded investment	$564,729	$518,882
Commercial, Industrial, and Agricultural [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing receivable recorded investment	258,889	257,091
Commercial Mortgages [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing receivable recorded investment	305,840	261,791
Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing receivable recorded investment	493,527	460,129
Pass [Member] | Commercial, Industrial, and Agricultural [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing receivable recorded investment	230,412	234,835
Pass [Member] | Commercial Mortgages [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing receivable recorded investment	263,115	225,294
Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing receivable recorded investment	16,953	18,935
Special Mention [Member] | Commercial, Industrial, and Agricultural [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing receivable recorded investment	6,997	6,641
Special Mention [Member] | Commercial Mortgages [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing receivable recorded investment	9,956	12,294
Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing receivable recorded investment	51,389	38,960
Substandard [Member] | Commercial, Industrial, and Agricultural [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing receivable recorded investment	21,349	15,459
Substandard [Member] | Commercial Mortgages [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing receivable recorded investment	30,040	23,501
Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing receivable recorded investment	2,860	858
Doubtful [Member] | Commercial, Industrial, and Agricultural [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing receivable recorded investment	131	156
Doubtful [Member] | Commercial Mortgages [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing receivable recorded investment	$2,729	$702

Loans_Recorded_Investment_in_R

Loans - Recorded Investment in Residential and Consumer Loan Based on Payment Activity (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'
Residential real estate	$400,649	$347,904
Consumer	62,187	58,668
Credit Cards	4,800	4,800
Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Residential real estate	398,598	345,094
Consumer	57,589	55,040
Credit Cards	4,746	4,787
Non-Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Residential real estate	2,051	2,810
Consumer	694	227
Credit Cards	$54	$13

Loans_Summary_of_Holidays_Loan

Loans - Summary of Holiday's Loan Portfolio (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Consumer	$62,187	$58,668
Residential real estate	400,649	347,904
Less: unearned discount	-3,904	-3,401
Holiday Financial Services Corporation [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Consumer	23,909	21,535
Residential real estate	1,397	954
Less: unearned discount	-3,904	-3,401
Total	$21,402	$19,088

Deposits_Total_Deposits_Detail

Deposits - Total Deposits (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Banking And Thrift [Abstract]	'	'
Percentage change, Checking, non-interest bearing	8.10%	'
Percentage change, Checking, interest bearing	11.30%	'
Percentage change, Savings accounts	5.50%	'
Percentage change, Certificate of deposit	-12.50%	'
Percentage change, Total	4.50%	'
Checking, non-interest bearing	$189,362	$175,239
Checking, interest bearing	374,826	336,911
Savings accounts	801,677	759,910
Certificates of deposit	186,416	212,943
Total deposits	$1,552,281	$1,485,003

Earnings_Per_Share_Additional_

Earnings Per Share - Additional Information (Detail)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share [Abstract]	'	'	'	'
Antidilutive shares excluded from the diluted earnings per share calculations	36,203	37,500	36,203	37,500

Earnings_Per_Share_Computation

Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]	'	'	'	'
NET INCOME	$4,703	$4,563	$11,951	$13,246
Net earnings allocated to participating securities	-21	-17	-56	-50
Net earnings allocated to common stock	4,682	4,546	11,895	13,196
Basic earnings per common share computation:	'	'	'	'
Net earnings allocated to common stock	4,682	4,546	11,895	13,196
Net earnings allocated to common stock	4,682	4,546	11,895	13,196
Weighted average common shares outstanding, including shares considered participating securities	12,513	12,448	12,505	12,430
Less: Average participating securities	-51	-41	-52	-42
Weighted average shares	12,462	12,407	12,453	12,388
Basic earnings per common share	$0.38	$0.37	$0.96	$1.07
Diluted earnings per common share computation:	'	'	'	'
Net earnings allocated to common stock	4,682	4,546	11,895	13,196
Weighted average common shares outstanding for basic earnings per common share	12,462	12,407	12,453	12,388
Add: Dilutive effects of assumed exercises of stock options	2	4	1	4
Weighted average shares and dilutive potential common shares	12,464	12,411	12,454	12,392
Diluted earnings per common share	$0.38	$0.37	$0.96	$1.06
Distributed Earnings Allocated to Common Stock [Member]	'	'	'	'
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]	'	'	'	'
Net earnings allocated to common stock	2,054	2,045	6,161	6,130
Basic earnings per common share computation:	'	'	'	'
Net earnings allocated to common stock	2,054	2,045	6,161	6,130
Net earnings allocated to common stock	2,054	2,045	6,161	6,130
Undistributed Earnings Allocated to Common Stock [Member]	'	'	'	'
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]	'	'	'	'
Net earnings allocated to common stock	2,628	2,501	5,734	7,066
Basic earnings per common share computation:	'	'	'	'
Net earnings allocated to common stock	2,628	2,501	5,734	7,066
Net earnings allocated to common stock	$2,628	$2,501	$5,734	$7,066

Derivative_Instruments_Additio

Derivative Instruments - Additional Information (Detail) (USD $)	0 Months Ended	1 Months Ended	9 Months Ended	12 Months Ended
	3-May-11	Aug. 31, 2008	Sep. 30, 2013	Dec. 31, 2007	Dec. 31, 2012
Derivative [Line Items]	'	'	'	'	'
Term of interest rate swap agreement executed	'5 years	'5 years	'	'	'
Value of subordinated note hedged	'	'	'	$10,000,000	'
Interest rate	'The interest rate swap involves the receipt of variable-rate amounts in exchange for fixed-rate payments from September 15, 2013 to September 15, 2018 without exchange of the underlying notional amount.	'The interest rate swap involved the receipt of variable-rate amounts in exchange for fixed-rate payments from September 15, 2008 to the September 15, 2013 maturity date without exchange of the underlying notional amount.	'	'	'
Interest rate swap inception date	'	'	15-Sep-08	'	'
Interest rate swap maturity date	'	'	15-Sep-13	'	'
Derivatives designated as fair value hedges	'	'	0	'	'
Accumulated other comprehensive loss estimated	'	'	377,000	'	'
Collateral amount for counterparty interest rate swap	'	'	$1,350,000	'	$1,950,000
Interest Rate Swaps [Member]	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative fixed interest rate rate basis	'	'	4.02%	'	'
Derivative basis spread on variable rate	'	'	1.55%	'	'
LIBOR Plus 155 Basis Points [Member]	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Variable rate on the subordinated debt on effective date in case of interest rate swap	'	'	'LIBOR plus 155 basis points	'	'
Variable interest rate on subordinate debt	'	'	1.80%	'	'
4.02% Fixed Rate Plus 155 Basis Points [Member]	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Variable rate on the subordinated debt on effective date in case of interest rate swap	'	'	'4.02% fixed rate plus 155 basis points	'	'
Interest rate being paid by the corporation	'	'	5.57%	'	'

Derivative_Instruments_Amounts

Derivative Instruments - Amounts and Locations of Activity Related to Interest Rate Swaps Designated as Cash Flow Hedges within Corporation's Consolidated Balance Sheet and Statement of Income (Detail) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

In Thousands, unless otherwise specified

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Dec. 31, 2012

Interest Expense Subordinated Debentures [Member]

Interest Expense Subordinated Debentures [Member]

Interest Expense Subordinated Debentures [Member]

Interest Expense Subordinated Debentures [Member]

Other Income [Member]

Other Income [Member]

Other Income [Member]

Other Income [Member]

Accrued Interest Payable and Other Liabilities [Member]

Accrued Interest Payable and Other Liabilities [Member]

Schedule Of Loans And Allowance For Loan By Class Individually And Collectively Evaluated For Impairment [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest rate contracts

'

'

'

'

'

'

'

'

'

'

'

'

($1,241)

($1,745)

Interest rate contracts

8

-44

327

-116

'

'

'

'

'

'

'

'

'

'

Interest expense, Fair Value

'

'

'

'

-102

-98

-304

-290

'

'

'

'

'

'

Other income

'

'

'

'

'

'

'

'

$0

$0

$0

$0

'

'