Chicopee Bancorp 10-Q 8 Nov 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Nov. 01, 2013
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'CHICOPEE BANCORP, INC.	'
Entity Central Index Key	'0001355786	'
Document Type	'10-Q	'
Document Period End Date	30-Sep-13	'
Amendment Flag	'false	'
Trading Symbol	'CBNK	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	5,417,485

CONSOLIDATED_STATEMENTS_OF_FIN

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
ASSETS	'	'
Cash and due from banks	$22,196	$11,073
Federal funds sold	2,126	3,372
Interest-bearing deposits with the Federal Reserve Bank of Boston	29,269	25,163
Total cash and cash equivalents	53,591	39,608
Available-for-sale securities, at fair value	631	621
Held-to-maturity securities, at cost (fair value $60,977 and $67,108 at September 30, 2013 and December 31, 2012, respectively)	55,119	59,568
Federal Home Loan Bank stock, at cost	3,914	4,277
Loans, net of allowance for loan losses ($4,439 at September 30, 2013 and $4,364 at December 31, 2012)	461,309	465,211
Loans held for sale	135	0
Other real estate owned (OREO)	501	572
Mortgage servicing rights	422	368
Bank owned life insurance	14,082	13,807
Premises and equipment, net	9,181	9,459
Accrued interest and dividends receivable	1,613	1,567
Deferred income tax asset	3,249	3,252
FDIC prepaid insurance	0	467
Other assets	1,125	1,205
Total assets	604,872	599,982
Deposits	'	'
Demand deposits	102,818	75,407
NOW accounts	39,932	36,711
Savings accounts	50,696	48,882
Money market deposit accounts	127,678	127,730
Certificates of deposit	163,390	177,447
Total deposits	484,514	466,177
Securities sold under agreements to repurchase	1,793	9,763
Advances from Federal Home Loan Bank	26,348	33,332
Accrued expenses and other liabilities	937	741
Total liabilities	513,592	510,013
Stockholders' equity	'	'
Common stock (no par value, 20,000,000 shares authorized, 7,439,368 shares issued, 5,414,885 and 5,428,505 outstanding at September 30, 2013 and December 31, 2012)	72,479	72,479
Treasury stock, at cost (2,024,483 and 2,010,783 shares at September 30, 2013 and December 31, 2012, respectively)	-26,809	-26,567
Additional paid-in-capital	3,294	3,044
Unearned compensation (restricted stock awards)	-14	-18
Unearned compensation (Employee Stock Ownership Plan)	-3,645	-3,868
Retained earnings	45,942	44,873
Accumulated other comprehensive income	33	26
Total stockholders' equity	91,280	89,969
Total liabilities and stockholders' equity	$604,872	$599,982

CONSOLIDATED_STATEMENTS_OF_FIN1

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Held-to-maturity securities, at cost	$60,977	$67,108
Loans, allowance for loan losses	$4,439	$4,364
Common stock, par value	'	'
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	7,439,368	7,439,368
Common stock, shares outstanding	5,414,885	5,428,505
Treasury stock, shares	2,024,483	2,010,783

CONSOLIDATED_STATEMENTS_OF_INC

CONSOLIDATED STATEMENTS OF INCOME (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Interest and dividend income:	'	'	'	'
Loans, including fees	$5,272	$5,660	$16,080	$17,017
Interest and dividends on securities	424	425	1,275	1,248
Other interest-earning assets	14	15	44	54
Total interest and dividend income	5,710	6,100	17,399	18,319
Interest expense:	'	'	'	'
Deposits	899	1,107	2,823	3,380
Securities sold under agreements to repurchase	2	2	9	11
Other borrowed funds	168	264	537	982
Total interest expense	1,069	1,373	3,369	4,373
Net interest income	4,641	4,727	14,030	13,946
Provision for loan losses	212	169	270	240
Net interest income after provision for loan losses	4,429	4,558	13,760	13,706
Non-interest income:	'	'	'	'
Service charges, fees and commissions	695	621	1,689	1,694
Loan sales and servicing, net	70	18	559	286
Net loss on sale of OREO	-93	-112	-154	-220
Income from bank owned life insurance	92	93	275	285
Other non-interest income	0	0	24	34
Total non-interest income	764	620	2,393	2,079
Non-interest expenses:	'	'	'	'
Salaries and employee benefits	2,564	2,447	7,656	8,064
Occupancy expenses	390	367	1,169	1,127
Furniture and equipment	194	179	633	594
FDIC insurance assessment	53	89	179	272
Data processing	316	285	928	817
Professional fees	159	136	528	447
Advertising	164	141	456	440
Stationery, supplies and postage	62	70	212	249
Other non-interest expense	603	648	2,033	2,004
Total non-interest expenses	4,505	4,362	13,794	14,014
Income before income taxes	688	816	2,359	1,771
Income tax expense	115	193	476	300
Net income	$573	$623	$1,883	$1,471
Earnings per share:	'	'	'	'
Basic (usd per share)	$0.11	$0.12	$0.37	$0.29
Diluted (usd per share)	$0.11	$0.12	$0.37	$0.29
Adjusted weighted average shares outstanding:	'	'	'	'
Basic (shares)	5,035,488	5,077,268	5,038,735	5,132,576
Diluted (shares)	5,138,815	5,102,842	5,125,438	5,158,479

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement of Other Comprehensive Income [Abstract]	'	'	'	'
Net income	$573	$623	$1,883	$1,471
Other comprehensive income (loss), net of tax	'	'	'	'
Unrealized holding gains (losses) arising during period on investment securities available-for-sale	29	6	10	-23
Tax effect	-10	-2	-3	8
Other comprehensive income (loss), net of tax	19	4	7	-15
Comprehensive income	$592	$627	$1,890	$1,456

CONSOLIDATED_STATEMENTS_OF_CHA

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $)	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Unearned Compensation(restricted stock awards)	Unearned Compensation (Employee Stock Ownership Plan)	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
In Thousands, unless otherwise specified
Beginning Balance at Dec. 31, 2011	$90,782	$72,479	($22,190)	$2,800	($546)	($4,166)	$42,408	($3)
Comprehensive income:	'	'	'	'	'	'	'	'
Net income	1,471	'	'	'	'	'	1,471	'
Change in net unrealized loss on securities available-for-sale (net of deferred income taxes of $3 in 2013 and $8 in 2012)	-15	'	'	'	'	'	'	-15
Comprehensive income	1,456	'	'	'	'	'	'	'
Stock option expense (net of income tax benefit of $3 in 2013 and $51 in 2012)	263	'	'	263	'	'	'	'
Treasury stock purchased (13,700 and 273,273 shares in 2013 and 2012, respectively)	-3,996	'	-3,883	'	'	'	'	'
Stock options exercised	-53	'	'	-53	'	'	'	'
Change in unearned compensation:	'	'	'	'	'	'	'	'
Restricted stock award expense	527	'	'	'	527	'	'	'
Common stock held by ESOP committed to be released	321	'	'	98	'	223	'	'
Ending Balance at Sep. 30, 2012	89,300	72,479	-26,073	2,995	-19	-3,943	43,879	-18
Beginning Balance at Dec. 31, 2012	89,969	72,479	-26,567	3,044	-18	-3,868	44,873	26
Comprehensive income:	'	'	'	'	'	'	'	'
Net income	1,883	'	'	'	'	'	1,883	'
Change in net unrealized loss on securities available-for-sale (net of deferred income taxes of $3 in 2013 and $8 in 2012)	7	'	'	'	'	'	'	7
Comprehensive income	1,890	'	'	'	'	'	'	'
Stock option expense (net of income tax benefit of $3 in 2013 and $51 in 2012)	94	'	'	94	'	'	'	'
Treasury stock purchased (13,700 and 273,273 shares in 2013 and 2012, respectively)	-242	'	-242	'	'	'	'	'
Change in unearned compensation:	'	'	'	'	'	'	'	'
Restricted stock award expense	4	'	'	'	4	'	'	'
Common stock held by ESOP committed to be released	379	'	'	156	'	223	'	'
Cash dividends declared ($0.15 per share)	-814	'	'	'	'	'	-814	'
Ending Balance at Sep. 30, 2013	$91,280	$72,479	($26,809)	$3,294	($14)	($3,645)	$45,942	$33

CONSOLIDATED_STATEMENTS_OF_CHA1

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) (USD $)	9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Statement of Stockholders' Equity [Abstract]	'	'
Change in net unrealized (loss) gain on securities available-for-sale, deferred income taxes	($3)	$8
Stock option expense, income tax benefit	$3	$51
Treasury stock purchased, shares	13,700	273,273
Cash dividends declared, usd per share	$0.15	'

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	$1,883	$1,471
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization	721	748
Gain on disposal of premises and equipment	-24	0
Provision for loan losses	270	240
Increase in cash surrender value of life insurance	-275	-285
Realized gains on sales of mortgage loans	-180	-128
Decrease in other assets	48	347
Increase in accrued interest and dividends receivable	-46	-533
Decrease in FDIC prepaid insurance	467	272
Net change in loans originated for resale	-135	1,635
Net loss on sales of OREO	154	220
Decrease in other liabilities	197	182
Change in unearned compensation	383	735
Stock option expense	94	263
Net cash provided by operating activities	3,557	5,167
Cash flows from investing activities:	'	'
Additions to premises and equipment	-268	-491
Loan originations and principal collections, net	3,150	-25,749
Proceeds from sales of OREO	401	675
Purchases of held-to-maturity securities	-27,015	-34,953
Maturities of held-to-maturity securities	30,390	45,139
Proceeds from principal paydowns of held-to-maturity securities	1,079	1,337
Proceeds from sale of FHLB stock	362	213
Net cash provided (used) by investing activities	8,099	-13,829
Cash flows from financing activities:	'	'
Net increase in deposits	18,336	21,732
Decrease in securities sold under agreements to repurchase	-7,969	-5,132
Payments on long-term FHLB advances	-6,984	-23,630
Treasury stock purchased	-242	-3,883
Cash dividends paid on common stock	-814	0
Stock options exercised	0	-53
Net cash provided (used) by financing activities	2,327	-10,966
Net increase (decrease) in cash and cash equivalents	13,983	-19,628
Cash and cash equivalents at beginning of year	39,608	61,122
Cash and cash equivalents at end of period	53,591	41,494
Supplemental cash flow information:	'	'
Interest paid on deposits	2,823	3,380
Interest paid on borrowings	556	909
Income taxes paid	346	361
Transfers from loans to OREO	483	520
Gain on acquisition of OREO	$0	$34

Basis_of_Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Basis of Presentation	'
	Basis of Presentation
	Chicopee Bancorp, Inc. (the “Corporation”) has no significant assets other than all of the outstanding shares of its wholly-owned subsidiaries, Chicopee Savings Bank (the “Bank”) and Chicopee Funding Corporation (collectively, the “Company”). The Corporation was formed on March 14, 2006 and became the holding company for the Bank upon completion of the Bank’s conversion from a mutual savings bank to a stock savings bank.  The conversion of the Bank was completed on July 19, 2006.  The accounts of the Bank include its wholly-owned subsidiaries and a 99% owned subsidiary.  The consolidated financial statements of the Company as of September 30, 2013 and for the periods ended September 30, 2013 and 2012 included herein are unaudited.  In the opinion of management, all adjustments, consisting only of normal recurring adjustments necessary for a fair presentation of the financial condition, results of operations, changes in stockholders’ equity and cash flows, as of and for the periods covered herein, have been made.  These financial statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2012 included in the Company’s Annual Report on Form 10-K.
	The results for the three and nine month interim periods ended September 30, 2013 are not necessarily indicative of the operating results for a full year.

Earnings_Per_Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	Earnings Per Share
	Basic earnings per share represents income available to common stockholders divided by the adjusted weighted-average number of common shares outstanding during the period.  The adjusted outstanding common shares equals the gross number of common shares issued less average treasury shares, unallocated shares of the Chicopee Savings Bank Employee Stock Ownership Plan (“ESOP”), and average dilutive restricted stock awards under the 2007 Equity Incentive Plan. Diluted earnings per share reflects additional common shares that would have been outstanding if dilutive potential common shares had been issued.  Potential common shares that may be issued by the Company relate to outstanding stock options and certain stock awards and are determined using the treasury stock method.
	Earnings per share is computed as follows:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Net income (in thousands)	$	573		$	623		$	1,883		$	1,471
	Weighted average number of common shares issued	7,439,368			7,439,368			7,439,368			7,439,368
	Less: average number of treasury shares	(2,015,832		)	(1,929,399		)	(2,012,484		)	(1,848,185		)
	Less: average number of unallocated ESOP shares	(386,848		)	(416,605		)	(386,848		)	(416,605		)
	Less: average number of dilutive restricted stock awards	(1,200		)	(16,096		)	(1,301		)	(42,002		)
	Adjusted weighted average number of common shares outstanding	5,035,488			5,077,268			5,038,735			5,132,576
	Plus: dilutive outstanding restricted stock awards	377			12,872			370			25,419
	Plus: dilutive outstanding stock options	102,950			12,702			86,333			484
	Weighted average number of diluted shares outstanding	5,138,815			5,102,842			5,125,438			5,158,479
	Earnings per share:
	Basic-common stock	$	0.11		$	0.12		$	0.37		$	0.29
	Basic-unvested share-based payment awards	$	0.11		$	0.12		$	0.37		$	0.29
	Diluted-common stock	$	0.11		$	0.12		$	0.37		$	0.29
	Diluted-unvested share-based payment awards	$	0.11		$	0.12		$	0.37		$	0.29
	There were 100,000 and 73,000 stock options that were not included in the calculation of diluted earnings per share for the three months ended September 30, 2013 and 2012, respectively, because the effect was anti-dilutive. There were 100,000 and 583,198 stock options that were not included in the calculation of diluted earnings per share for the nine months ended September 30, 2013 and 2012, respectively, because the effect was anti-dilutive.

Equity_Incentive_Plan

Equity Incentive Plan	9 Months Ended
	Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Equity Incentive Plan	'
	Equity Incentive Plan
	Stock Options
	The Company’s 2007 Equity Incentive Plan (the “Plan”) was approved by the Company’s stockholders at the annual meeting of the Company’s stockholders on May 30, 2007. The Plan provides that the Company may grant options to directors, officers and employees for up to 743,936 shares of common stock. Both incentive stock options and non-qualified stock options may be granted under the Plan. The exercise price for each option is equal to the market price of the Company’s stock on the date of grant and the maximum term of each option is ten years. The stock options vest over five years in five equal installments on each anniversary of the date of grant.
	The Company recognizes compensation expense over the vesting period, based on the grant-date fair value of the options granted. The fair value of each option granted is estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions for options granted during the year ended December 31, 2012, and the nine months ended September 30, 2013:
		Nine Months Ended September 30,		Year Ended
				December 31,
		2013		2012
	Expected dividend yield	1.39	%	0.86	%
	Weighted average expected term	6.50 years		6.50 years
	Weighted average expected volatility	24.06	%	23.27	%
	Weighted average risk-free interest rate	1.25	%	1.4	%
	Expected volatility is based on the historical volatility of the Company’s stock and other factors. The risk-free interest rate for periods within the contractual life of the option is based on the U.S. Treasury yield curve in effect at the time of the grant. The Company uses historical data, such as option exercise and employee termination rates, to calculate the expected option life.
	A summary of options under the Plan as of September 30, 2013, and changes during the nine months ended September 30, 2013, is as follows:
		Number of		Weighted Average		Weighted Average	Aggregate
		Shares		Exercise Price		Remaining	Intrinsic
						Contractual Term	Value
						(in years)	(000's)
	Outstanding at December 31, 2012	595,198		$	14.24	5.15	$	983
	Granted	100,000		16.55		9.32	—
	Exercised	—		—		—	—
	Forfeited or expired	—		—		—	—
	Outstanding at September 30, 2013	695,198		$	14.57	5.11	$	2,112
	Exercisable at September 30, 2013	534,598		$	14.26	3.99	$	1,790
	Exercisable at September 30, 2012	517,598		$	14.27	4.87	$	92
	The Company granted 100,000 stock options during the nine months ended September 30, 2013 with a fair value of $3.59. The weighted-average grant-date fair value of options granted during 2012 was $3.32. The weighted-average grant-date fair value of the options outstanding and exercisable at September 30, 2013 was $3.81 and $3.90, respectively. For the nine months ended September 30, 2013 and 2012, share based compensation expense applicable to options granted under the Plan was $94,000 and $263,000 and the related tax benefit was $3,000 and $51,000, respectively. As of September 30, 2013, unrecognized stock-based compensation expense related to non-vested options amounted to $474,000. This amount is expected to be recognized over a period of 3.79 years.
	Stock Awards
	The Plan provides that, the Company may grant stock awards to its directors, officers and employees for up to 297,574 shares of common stock. The stock awards vest 20% per year beginning on the first anniversary of the date of grant. The fair market value of the stock awards, based on the market price at the date of grant, is recorded as unearned compensation. Unearned compensation is amortized over the applicable vesting period. The weighted-average grant-date fair value of stock awards as of September 30, 2013 is $14.08. The Company recorded compensation cost related to stock awards of approximately $4,000 and $527,000 in the nine months ended September 30, 2013 and 2012, respectively. Stock awards with a fair value of $854,000, vested during the year ended December 31, 2012. No stock awards were granted prior to July 1, 2007. The Company granted 2,000 stock awards during the year ended December 31, 2011 with a grant price of $14.08. There were no awards granted by the Company during the nine months ended September 30, 2013. As of September 30, 2013, unrecognized stock-based compensation expense related to non-vested restricted stock awards amounted to $14,000. This amount is expected to be recognized over a period of 2.44 years.
	A summary of the status of the Company’s stock awards as of September 30, 2013, and changes during the nine months ended September 30, 2013, is as follows:
	Nonvested Shares	Number of		Weighted
		Shares		Average
				Grant-Date
				Fair Value
	Outstanding at December 31, 2012	1,600		$	14.08
	Granted	—		—
	Vested	400		14.08
	Forfeited	—		—
	Outstanding at September 30, 2013	1,200		$	14.08

Longterm_Incentive_Plan

Long-term Incentive Plan	9 Months Ended
	Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Long-term Incentive Plan	'
	Long-term Incentive Plan
	On March 13, 2012, the Company adopted the Chicopee Bancorp, Inc. 2012 Phantom Stock Unit Award and Long-Term Incentive Plan (the “Phantom Stock Plan”), effective January 1, 2012, to promote the long-term financial success of the Company and its subsidiaries by providing a means to attract, retain and reward individuals who contribute to such success and to further align their interest with those of the Company’s stockholders.
	A total of 150,000 phantom stock units will be available for awards under the Phantom Stock Plan. The only awards that may be granted under the Phantom Stock Plan are Phantom Stock Units. A Phantom Stock Unit represents the right to receive a cash payment on the determination date equal to the book value of a share of the Company’s stock on the determination date. The settlement of a Phantom Stock Unit on the determination date shall be in cash. Unless the Compensation Committee of the Board of Directors of the Company determines otherwise, the required period of service for full vesting will be three years. The Company's total expense under the Phantom Stock Plan for the three months ended September 30, 2013, and 2012, was $4,000 and $8,000, respectively. The Company’s total expense under the Phantom Stock Plan for the nine months ended September 30, 2013, and 2012, was $11,000 and $26,000, respectively.

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements (Applicable to the Company)	9 Months Ended
	Sep. 30, 2013
Accounting Changes and Error Corrections [Abstract]	'
Recent Accounting Pronouncements (Applicable to the Company)	'
	Recent Accounting Pronouncements (Applicable to the Company)
	In December 2011, the Financial Accounting Standards Board ("FASB") issued Accounting Standard Update ("ASU") 2011-11, “Balance Sheet (Topic 210):  Disclosures about Offsetting Assets and Liabilities,” amending Topic 210.  The amendments require an entity to disclose both gross and net information about both instruments and transactions that are eligible for offset on the balance sheet and instruments and transactions that are subject to an agreement similar to a master netting arrangement.  This guidance is effective for annual periods beginning on or after January 1, 2013 and interim periods within those annual periods, with retrospective disclosure for all comparative periods presented.  The adoption of ASU 2011-11 did not have a material impact on the Company's consolidated financial statements.
	In February 2013, the FASB issued ASU No. 2013-02, "Comprehensive Income (Topic 220): Reporting of Amounts Reclassified out of Accumulated Other Comprehensive Income". This ASU improves the reporting of reclassifications out of accumulated other comprehensive income. The amendments in the ASU seek to attain that objective by requiring an entity to report the effect of significant reclassifications out of accumulated other comprehensive income on the respective line items in net income if the amount being reclassified is required under U.S. generally accepted accounting principles (“GAAP”) to be reclassified in its entirety to net income. For other amounts that are not required under GAAP to be reclassified in their entirety to net income in the same reporting period, an entity is required to cross-reference other disclosures required under GAAP that provide additional detail about those amounts. This guidance is effective for reporting periods beginning after December 15, 2012, with early adoption permitted. The adoption of ASU 2013-02 did not have a material effect on the Company's consolidated financial statements.

Investment_Securities

Investment Securities	9 Months Ended
	Sep. 30, 2013
Investments, Debt and Equity Securities [Abstract]	'
Investment Securities	'
	Investment Securities
	The following tables set forth, at the dates indicated, information regarding the amortized cost and fair value, with gross unrealized gains and losses of the Company's investment securities:
		September 30, 2013
		Amortized			Gross				Gross			Fair
		Cost			Unrealized				Unrealized			Value
					Gains				Losses
		(In Thousands)
	Available-for-sale securities
	Marketable equity securities	$	581		$	55			$	(5	)	$	631
	Total available-for-sale securities	$	581		$	55			$	(5	)	$	631
	Held-to-maturity securities
	U.S. Treasury securities	$	10,997		$	3			$	—		$	11,000
	Corporate and industrial
	revenue bonds	35,034			5,804				—			40,838
	Certificates of deposit	8,373			15				—			8,388
	Collateralized mortgage obligations	715			36				—			751
	Total held-to-maturity securities	$	55,119		$	5,858			$	—		$	60,977
	Non-marketable securities
	Federal Home Loan Bank stock	$	3,914		$	—			$	—		$	3,914
	Banker's Bank stock	183			—				—			183
	Total non-marketable securities	$	4,097		$	—			$	—		$	4,097
		December 31, 2012
		Amortized			Gross				Gross			Fair
		Cost			Unrealized				Unrealized			Value
					Gains				Losses
		(In Thousands)
	Available-for-sale securities
	Marketable equity securities	$	581		$	40			$	—		$	621
	Total available-for-sale securities	$	581		$	40			$	—		$	621
	Held-to-maturity securities
	U.S. Treasury securities	$	13,691		$	2			$	—		$	13,693
	Corporate and industrial
	revenue bonds	35,656			7,481				—			43,137
	Certificates of deposit	9,041			4				—			9,045
	Collateralized mortgage obligations	1,180			53				—			1,233
	Total held-to-maturity securities	$	59,568		$	7,540			$	—		$	67,108
	Non-marketable securities
	Federal Home Loan Bank stock	$	4,277		$	—			$	—		$	4,277
	Banker's Bank stock	183			—				—			183
	Total non-marketable securities	$	4,460		$	—			$	—		$	4,460
	At September 30, 2013 and December 31, 2012, securities with an amortized cost of $11.3 million and $12.6 million, respectively, were pledged as collateral to support securities sold under agreements to repurchase.
	The amortized cost and estimated fair value of debt securities by contractual maturity at September 30, 2013 are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without prepayment penalties. The collateralized mortgage obligations are allocated to maturity categories according to final maturity date.
		Held-to-maturity
		Amortized			Fair Value
		Cost
		(In Thousands)
	Within 1 year	$	19,370		$	19,388
	From 1 to 5 years	440			462
	From 5 to 10 years	8,339			9,401
	Over 10 years	26,970			31,726
		$	55,119		$	60,977
	Unrealized Losses on Investment Securities
	Management conducts, at least on a monthly basis, a review of its investment portfolio including available-for-sale and held-to-maturity securities to determine if the fair value of any security has declined below its cost or amortized cost and whether such security is other-than-temporarily impaired (“OTTI”). Securities are evaluated individually based on guidelines established by the FASB and the internal policy of the Company and include but are not limited to: (1) intent and ability of the Company to retain the investment for a period of time sufficient to allow for the anticipated recovery in fair value; (2) percentage and length of time which an issue is below book value; (3) financial condition and near-term prospects of the issuer; (4) whether the debtor is current on contractually obligated interest and principal payments; (5) the volatility of the market price of the security; and (6) any other information and observable data considered relevant in determining whether other-than-temporary impairment has occurred, including the expectation of receipt of all principal and interest due.
	As of September 30, 2013 management determined that there were no securities other-than-temporarily impaired. During the year ended December 31, 2012, management deemed that three equity securities issued by one company in the financial industry had other-than-temporary impairment and a write down was recorded in the amount of $37,000. Management evaluated these securities according to the Company's OTTI policy and determined the declines in value to be other-than-temporary.
	The following table presents the fair value of investments with continuous unrealized losses as of September 30, 2013:
			30-Sep-13
			Less Than Twelve Months							Twelve Months and Over					Total
			(In Thousands)
						Gross							Gross				Gross
			Fair			Unrealized				Fair			Unrealized		Fair		Unrealized
			Value			Losses				Value			Losses		Value		Losses
	Marketable equity securities		$	212		$	(5	)		$	—		$	—	$	212	$	(5	)
	Total temporarily impaired securities		$	212		$	(5	)		$	—		$	—	$	212	$	(5	)
There were no continuous unrealized losses as of December 31, 2012.
U.S. Treasury Securities
There were no unrealized losses within the U.S. Treasury securities portfolio at September 30, 2013 and December 31, 2012, respectively. The portfolio ended with an unrealized gain of $3,000 and $2,000 as of September 30, 2013 and December 31, 2012, respectively.
Collateralized Mortgage Obligations (“CMO”)
As of September 30, 2013 and December 31, 2012, there were no unrealized losses within the CMO portfolio. The portfolio ended with an unrealized gain of $36,000 and $53,000 as of September 30, 2013 and December 31, 2012, respectively.
As of September 30, 2013, the Company had seven CMO bonds, or nine individual issues, with an aggregate book value of $715,000, there were no bonds with a FICO score less than 650. Since the purchase of these bonds, interest payments have been current and the Company expects to receive all principal and interest due.
As of December 31, 2012, the Company had nine CMO bonds, or 12 individual issues, with an aggregate book value of $1.2 million, which included one bond, with a FICO score less than 650. This risk is mitigated by loan-to-value ratios of less than 65%. Since the purchase of these bonds, interest payments have been current and the Company expects to receive all principal and interest due.
Corporate and Industrial Revenue Bonds
As of September 30, 2013 and December 31, 2012, there were no unrealized losses within the corporate industrial revenue bond category. As of September 30, 2013, the Company had six tax-exempt industrial revenue bonds ("IRB"), with an aggregate book value of $35.0 million. These IRBs have a tax equivalent adjustment based on a tax rate of 41%. The portfolio ended with unrealized gains of $5.8 million and $7.5 million as of September 30, 2013 and December 31, 2012, respectively.
As of December 31, 2012, the Company had six tax-exempt IRBs, with an aggregate book value of $35.7 million. These IRBs have a tax equivalent adjustment based on a tax rate of 41%.
Marketable Equity Securities
Unrealized losses within the marketable equity securities portfolio at September 30, 2013 related to three securities issued by one company in the financial industry.  As of September 30, 2013, all unrealized losses were for less than 12 months. In reviewing these marketable securities for OTTI, it was determined that there was no impairment. Management will continue to conduct, on at least a monthly basis, a review if its investment portfolio to determine if the value of any security has declined below its cost and whether such security is other-than-temporarily impaired. There were no unrealized losses within the marketable equity securities portfolio at December 31, 2012.
Non-Marketable Securities
The Company is a member of the Federal Home Loan Bank (“FHLB”). The FHLB is a cooperatively owned wholesale bank for housing and finance in the six New England States. Its mission is to support the residential mortgage and community development lending activities of its members, which include over 450 financial institutions across New England. As a requirement of membership in the FHLB, the Company must own a minimum required amount of FHLB stock, calculated periodically based primarily on the Company’s level of borrowings from the FHLB. The Company uses the FHLB for much of its wholesale funding needs. As of September 30, 2013 and December 31, 2012, the Company’s investment in FHLB stock totaled $3.9 million and $4.3 million, or 39,141 and 42,765 shares, respectively.
FHLB stock is a non-marketable equity security and therefore is reported at cost, which equals par value. Shares held in excess of the minimum required amount are generally redeemable at par value. However, in the first quarter of 2009 the FHLB announced a moratorium on such redemptions in order to preserve its capital in response to current market conditions and declining retained earnings. The minimum required shares are redeemable, subject to certain limitations, five years following termination of FHLB membership. The Company has no intention of terminating its FHLB membership. As of September 30, 2013 and December 31, 2012, the Company received $12,000, and $22,000, in dividend income from its FHLB stock investment, respectively. On February 22, 2012, the FHLB announced that the Board of Directors approved the repurchase of excess capital stock from its members. On March 11, 2013, the FHLB repurchased $362,000 of FHLB stock, representing 3,624 shares.
The Company periodically evaluates its investment in FHLB stock for impairment based on, among other factors, the capital adequacy of the FHLB and its overall financial condition. No impairment losses have been recorded through September 30, 2013. The Company will continue to monitor its investment in FHLB stock.
Banker’s Bank Northeast stock is carried at cost and is evaluated for impairment based on an estimate of the ultimate recovery to par value. As of September 30, 2013 and December 31, 2012, the Company’s investment in Banker’s Bank totaled $183,000.

Loans_and_Allowance_for_Loan_L

Loans and Allowance for Loan Losses	9 Months Ended
	Sep. 30, 2013
Receivables [Abstract]	'
Loans and Allowance for Loan Losses	'
	Loans and Allowance for Loan Losses
	The following table sets forth the composition of the Company’s loan portfolio in dollar amounts and as a percentage of the respective portfolio.
		September 30, 2013						December 31, 2012
		Amount			Percent			Amount				Percent
					of Total							of Total
		(Dollars In Thousands)
	Real estate loans:
	Residential1	$	114,042		24.5	%		$	120,265			25.7	%
	Home equity	32,342			7	%		31,731				6.8	%
	Commercial	186,536			40.1	%		189,472				40.4	%
	Total	332,920			71.6	%		341,468				72.9	%
	Construction-residential	5,192			1.1	%		4,334				0.9	%
	Construction-commercial	34,154			7.3	%		35,781				7.6	%
	Total	39,346			8.4	%		40,115				8.5	%
	Total real estate loans	372,266			80	%		381,583				81.4	%
	Consumer loans	2,419			0.6	%		2,492				0.6	%
	Commercial and industrial loans	90,154			19.4	%		84,583				18	%
	Total loans	464,839			100	%		468,658				100	%
	Deferred loan origination costs, net	909						917
	Allowance for loan losses	(4,439		)				(4,364		)
	Loans, net	$	461,309					$	465,211
	1 Excludes loans held for sale of $135,000 at September 30, 2013. There were no loans held for sale at December 31, 2012.
	The Company has transferred a portion of its originated commercial real estate and commercial loans to participating lenders. The amounts transferred have been accounted for as sales and therefore not included in the Company’s consolidated statements of financial condition. The Company and participating lenders share proportionally, based on participating agreements, any gains or losses the may result from the borrowers lack of compliance with the terms of the loan. The Company continues to service the loans on behalf of the participating lenders. At September 30, 2013 and December 31, 2012, the Company was servicing loans for participating lenders totaling $20.6 million and $19.3 million, respectively.
	In accordance with the Company’s asset/liability management strategy and in an effort to reduce interest rate risk, the Company continues to sell fixed rate, low coupon residential real estate loans to the secondary market. The unpaid principal balance of mortgages that are serviced for others was $98.0 million and $87.1 million at September 30, 2013 and December 31, 2012, respectively. Servicing rights will continue to be retained on all loans written and sold in the secondary market.
	Credit Quality
	To evaluate the risk in the loan portfolio, internal credit risk ratings are used for the following loan segments: commercial real estate, commercial construction and commercial. The risks evaluated in determining an adequate credit risk rating, include the financial strength of the borrower and the collateral securing the loan. All commercial real estate, commercial construction and commercial loans are rated from one through nine. Credit risk ratings one through five are considered pass ratings. Classified assets include credit risk ratings of special mention, substandard, doubtful and loss. At least quarterly, classified assets are reviewed by management and by an independent third party. Credit risk ratings are updated as soon as information is obtained that indicates a change in the credit risk rating may be warranted.
	The following describes the credit risk ratings:
	Special mention. Assets that do not currently expose the Company to sufficient risk to warrant classification in one of the following categories but possess potential weaknesses.
	Substandard. Assets that have one or more defined weakness and are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Non-accruing loans are typically classified as substandard.
	Doubtful. Assets that have the weaknesses of substandard assets with the additional characteristic that the weaknesses make collection or liquidation in full on the basis of currently existing facts, conditions and values questionable, and there is a high possibility of loss.
	Loss. Assets rated in this category are considered uncollectible and are charged off against the allowance for loan losses.
	Residential real estate and residential construction loans are categorized into pass and substandard risk ratings. Substandard residential loans are loans that are on nonaccrual status and are individually evaluated for impairment.
	Consumer loans are considered nonperforming when they are 90 days past due or have not returned to accrual status. Consumer loans are not individually evaluated for impairment.
	Home equity loans are considered nonperforming when they are 90 days past due or have not returned to accrual status. Each nonperforming home equity loan is individually evaluated for impairment.
	The following table presents an analysis of total loans segregated by risk rating and segment as of September 30, 2013:
		Commercial Credit Risk Exposure
		Commercial and Industrial			Commercial				Commercial				Total
					Construction				Real Estate
		(In Thousands)
	Pass	$	82,533		$	24,825			$	172,657			$	280,015
	Special mention	4,977			5,507				6,878				17,362
	Substandard	2,644			3,822				7,001				13,467
	Doubtful	—			—				—				—
	Loss	—			—				—				—
	Total commercial loans	$	90,154		$	34,154			$	186,536			$	310,844
		Residential Credit Risk Exposure
		Residential			Residential								Total
		Real Estate			Construction
		(In Thousands)
	Performing	$	111,645		$	5,192							$	116,837
	Substandard (accruing)	245			—								245
	Substandard (nonaccrual)	2,152			—								2,152
	Total residential loans	$	114,042		$	5,192							$	119,234
		Consumer Credit Risk Exposure
		Consumer			Home Equity								Total
		(In Thousands)
	Performing	$	2,396		$	32,061							$	34,457
	Substandard (accruing)	—			50								50
	Nonperforming (nonaccrual)	23			231								254
	Total consumer loans	$	2,419		$	32,342							$	34,761
	The following table presents an analysis of total loans segregated by risk rating and segment as of December 31, 2012:
		Commercial Credit Risk Exposure
		Commercial and Industrial			Commercial				Commercial				Total
Construction					Real Estate
	(In Thousands)
Pass	$	75,656		$	23,214			$	178,337			$	277,207
Special mention	8,006			8,164				7,529				23,699
Substandard	874			4,403				3,606				8,883
Doubtful	47			—				—				47
Loss	—			—				—				—
Total commercial loans	$	84,583		$	35,781			$	189,472			$	309,836
	Residential Credit Risk Exposure
	Residential			Residential								Total
	Real Estate			Construction
	(In Thousands)
Performing	$	117,612		$	4,003							$	121,615
Substandard (accruing)	66			—								66
Substandard (nonaccrual)	2,587			331								2,918
Total residential loans	$	120,265		$	4,334							$	124,599
	Consumer Credit Risk Exposure
	Consumer			Home Equity								Total
	(In Thousands)
Performing	$	2,468		$	31,635							$	34,103
Nonperforming (nonaccrual)	24			96								120
Total consumer loans	$	2,492		$	31,731							$	34,223
Allowance for Loan Losses
The allowance for loan losses is established as losses are estimated to have occurred through a provision for loan losses charged to earnings. Loan losses are charged against the allowance when management believes the uncollectibility of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance. The allowance for loan losses is evaluated on a regular basis by management. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available. The allowance consists of general and allocated components, as further described below.
General Component
The general component of the allowance for loan losses is based on historical loss experience adjusted for qualitative factors stratified by the following portfolio segments: residential real estate, residential construction, commercial real estate, commercial, commercial construction, consumer and home equity. Management uses an average of historical losses based on a time frame appropriate to capture relevant loss data for each portfolio segment. Management deems 36 months to be an appropriate time frame on which to base historical losses for each portfolio segment. This historical loss factor is adjusted for qualitative factors for each portfolio segment including, but not limited to: levels/trends in delinquencies; trends in volume and terms of loans; effects of changes in risk selection and changes in lending policies, experience, ability, depth of lending management and staff; and national and local economic conditions. Management follows a similar process to estimate its liability for off-balance-sheet commitments to extend credit.
The qualitative factors are determined based on the various risk characteristics of each portfolio segment. Risk characteristics relevant to each portfolio segment are as follows:
Risk Characteristics
Residential real estate loans enable the borrower to purchase or refinance existing homes, most of which serve as the primary residence of the owner. Repayment is dependent on the credit quality of the borrower. Factors attributable to failure of repayment may include a weakened economy and/or unemployment, as well as possible personal considerations. While the Company anticipates adjustable-rate mortgages will better offset the potential adverse effects of an increase in interest rates as compared to fixed-rate mortgages, the increased mortgage payments required of adjustable-rate loan borrowers in a rising interest rate environment could cause an increase in delinquencies and defaults. The marketability of the underlying property also may be adversely affected in a high interest rate environment.
Commercial real estate loans are secured by commercial real estate and residential investment real estate and generally have larger balances and involve a greater degree of risk than one- to four-family residential mortgage loans. Risks in commercial real estate and residential investment lending are borrower’s creditworthiness and the feasibility and cash flow potential of the project. Payments on loans secured by income properties often depend on successful operation and management of the properties. As a result, repayment of such loans may be subject to a greater extent than residential real estate loans to adverse conditions in the real estate market or the economy.
Commercial and residential construction loans are generally considered to involve a higher degree of risk of loss than long-term financing on improved, occupied real estate. Risk of loss on a construction loan depends largely upon the accuracy of the initial estimate of the property’s value at completion of construction and the estimated cost (including interest) of construction.
Commercial and industrial loans are of higher risk and typically are made on the basis of the borrower’s ability to make repayment from the cash flow of the borrower’s business. As a result, the availability of funds for the repayment of commercial loans may depend substantially on the success of the business itself. Further, any collateral securing such loans may depreciate over time, may be difficult to appraise and may fluctuate in value.
Consumer and home equity loans may entail greater risk than do residential mortgage loans, particularly in the case of consumer loans that are unsecured or secured by assets that depreciate rapidly. In such cases, repossessed collateral for a defaulted consumer loan may not provide an adequate source of repayment for the outstanding loan and the remaining deficiency often does not warrant further substantial collection efforts against the borrower. In addition, consumer loan collections depend on the borrower’s continuing financial stability, and therefore are more likely to be adversely affected by job loss, divorce, illness or personal bankruptcy. Furthermore, the application of various federal and state laws, including bankruptcy and insolvency laws, may limit the amount that can be recovered on such loans.
The Company does not disaggregate its portfolio segments into loan classes.
Allocated Component
The allocated component relates to loans that are classified as impaired. Impairment is measured on a loan by loan basis for residential real estate, commercial real estate and commercial loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate or the fair value of the collateral if the loan is collateral dependent. An allowance is established when the discounted cash flows or collateral value of the impaired loan is lower than the carrying value of that loan. The Company recognizes the change in present value attributable to the passage of time as provision for loan losses. Large groups of smaller balance homogeneous loans are collectively evaluated for impairment, and the resulting allowance is reported as the general component, as described above.
Loans considered for impairment include all loan segments of commercial and residential, as well as home equity loans. The segments are considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed.
The Company may periodically agree to modify the contractual terms of loans. When a loan is modified and a concession is made to a borrower experiencing financial difficulty, the modification is considered a troubled debt restructuring ("TDR"). All TDR’s are classified as impaired.
Large groups of smaller balance homogeneous loans are collectively evaluated for impairment. Accordingly, the Company does not separately identify individual consumer loans for impairment evaluation, except for home equity loans.
During the nine months ended September 30, 2013 the Company modified the allowance methodology related to the qualitative factors. No quantitative factors were changed in the modification. The charge off trends are a separate factor in the allowance methodology and are no longer included in the qualitative factors. In addition, the Company reviews the dollar amount of total delinquencies and adjusts for the amounts and trends in the 30-89 day category. The amount over 90 day delinquencies is then compared to the charge-off history. Trends in volume are analyzed to determine any significant changes and the risk associated with each sector and trend. These changes resulted in a reallocation of the allowance and did not have a material effect on the allowance for loan losses.
The following table presents the allowance for loan losses and select loan information as of and for the three months ended September 30, 2013:
	Residential			Residential				Commercial				Commercial			Commercial and Industrial			Consumer			Home			Total
	Real Estate			Construction				Real Estate				Construction						Loans			Equity
Allowance for loan losses	(In Thousands)
Balance as of June 30, 2013	$	561		$	52			$	1,921			$	373		$	1,251		$	38		$	140		$	4,336
Provision for (reduction of) loan losses	113			23				39				43			(15		)	13			(4		)	212
Recoveries	—			—				2				—			1			3			—			6
Loans charged off	(52		)	—				—				—			(47		)	(16		)	—			(115		)
Balance as of September 30, 2013	$	622		$	75			$	1,962			$	416		$	1,190		$	38		$	136		$	4,439
The following table presents the allowance for loan losses and select loan information as of and for the nine months ended September 30, 2013:
	Residential			Residential				Commercial				Commercial			Commercial and Industrial			Consumer			Home			Total
	Real Estate			Construction				Real Estate				Construction						Loans			Equity
Allowance for loan losses	(In Thousands)
Balance as of December 31, 2012	$	536		$	93			$	1,966			$	502		$	1,099		$	44		$	124		$	4,364
Provision for (reduction of) loan losses	198			44				(15		)		(86		)	101			16			12			270
Recoveries	1			—				11				—			37			11			—			60
Loans charged off	(113		)	(62		)		—				—			(47		)	(33		)	—			(255		)
Balance as of September 30, 2013	$	622		$	75			$	1,962			$	416		$	1,190		$	38		$	136		$	4,439
Allowance for loan losses ending balance
Collectively evaluated for impairment	$	391		$	75			$	1,858			$	416		$	1,134		$	38		$	122		$	4,034
Individually evaluated for impairment	231			—				104				—			56			—			14			405
	$	622		$	75			$	1,962			$	416		$	1,190		$	38		$	136		$	4,439
Total loans ending balance
Collectively evaluated for impairment	$	111,645		$	5,192			$	180,396			$	30,331		$	88,587		$	2,419		$	32,061		$	450,631
Individually evaluated for impairment	2,397			—				6,140				3,823			1,567			—			281			14,208
	$	114,042		$	5,192			$	186,536			$	34,154		$	90,154		$	2,419		$	32,342		$	464,839
The following table presents the allowance for loan losses and select loan information as of and for the year ended December 31, 2012:
	Residential			Residential				Commercial				Commercial			Commercial and Industrial			Consumer			Home			Total
	Real Estate			Construction				Real Estate				Construction						Loans			Equity
Allowance for loan losses	(In Thousands)
Balance as of December 31, 2011	$	549		$	89			$	1,891			$	526		$	1,343		$	47		$	131		$	4,576
Provision for (reduction of) loan losses	84			4				140				(24		)	158			52			28			442
Recoveries	1			—				—				—			4			19			—			24
Loans charged off	(98		)	—				(65		)		—			(406		)	(74		)	(35		)	(678		)
Balance as of December 31, 2012	$	536		$	93			$	1,966			$	502		$	1,099		$	44		$	124		$	4,364
Allowance for loan losses ending balance
Collectively evaluated for impairment	$	353		$	62			$	1,919			$	502		$	1,099		$	44		$	124		$	4,103
Individually evaluated for impairment	183			31				47				—			—			—			—			261
	$	536		$	93			$	1,966			$	502		$	1,099		$	44		$	124		$	4,364
Total loans ending balance
Collectively evaluated for impairment	$	117,611		$	4,003			$	186,293			$	31,378		$	83,917		$	2,492		$	31,635		$	457,329
Individually evaluated for impairment	2,654			331				3,179				4,403			666			—			96			11,329
	$	120,265		$	4,334			$	189,472			$	35,781		$	84,583		$	2,492		$	31,731		$	468,658
The following table presents the allowance for loan losses and select loan information as of and for three months ended September 30, 2012:
	Residential			Residential				Commercial				Commercial			Commercial and Industrial			Consumer			Home			Total
	Real Estate			Construction				Real Estate				Construction						Loans			Equity
Allowance for loan losses	(In Thousands)
Balance as of June 30, 2012	$	369		$	94			$	1,852			$	589		$	1,352		$	46		$	180		$	4,482
Provision for (reduction of) loan losses	54			3				134				(39		)	52			10			(45		)	169
Recoveries	—			—				—				—			2			3			—			5
Loans charged off	—			—				(65		)		—			(177		)	(13		)	—			(255		)
Balance as of September 30, 2012	$	423		$	97			$	1,921			$	550		$	1,229		$	46		$	135		$	4,401
The following table presents the allowance for loan losses and select loan information as of and for the nine months ended September 30, 2012:
	Residential			Residential				Commercial				Commercial			Commercial and Industrial			Consumer			Home			Total
	Real Estate			Construction				Real Estate				Construction						Loans			Equity
Allowance for loan losses	(In Thousands)
Balance as of December 31, 2011	$	549		$	89			$	1,891			$	526		$	1,343		$	47		$	131		$	4,576
(Reduction of) provision for loan losses	(47		)	8				95				24			109			47			4			240
Recoveries	1			—				—				—			2			13			—			16
Loans charged off	(80		)	—				(65		)		—			(225		)	(61		)	—			(431		)
Balance as of September 30, 2012	$	423		$	97			$	1,921			$	550		$	1,229		$	46		$	135		$	4,401
Allowance for loan losses ending balance
Collectively evaluated for impairment	$	325		$	82			$	1,874			$	550		$	1,107		$	46		$	122		$	4,106
Individually evaluated for impairment	98			15				47				—			122			—			13			295
	$	423		$	97			$	1,921			$	550		$	1,229		$	46		$	135		$	4,401
Total loans ending balance
Collectively evaluated for impairment	$	120,340		$	5,199			$	181,954			$	34,369		$	84,514		$	2,598		$	31,370		$	460,344
Individually evaluated for impairment	1,684			331				3,701				4,490			1,167			—			223			11,596
	$	122,024		$	5,530			$	185,655			$	38,859		$	85,681		$	2,598		$	31,593		$	471,940
Impairment
The following table presents a summary of information pertaining to impaired loans by segment as of and for the three months ended September 30, 2013:
	Recorded			Unpaid				Average				Related			Interest Income
	Investment			Balance				Recorded				Allowance			Recognized
								Investment
	(In Thousands)
Impaired loans without a valuation allowance:
Residential real estate	$	1,259		$	1,259			$	1,409			$	—		$	19
Residential construction	—			—				—				—			—
Commercial real estate	5,601			5,915				3,897				—			64
Commercial construction	3,823			3,823				4,016				—			46
Commercial and industrial	1,234			1,504				922				—			14
Consumer	—			—				—				—			—
Home equity	118			118				142				—			2
Total	$	12,035		$	12,619			$	10,386			$	—		$	145
Impaired loans with a valuation allowance:
Residential real estate	$	1,138		$	1,138			$	1,006			$	231		$	11
Residential construction	—			—				110				—			—
Commercial real estate	539			604				475				104			11
Commercial construction	—			—				—				—			—
Commercial and industrial	333			333				183				56			2
Consumer	—			—				—				—			—
Home equity	163			163				125				14			—
Total	$	2,173		$	2,238			$	1,899			$	405		$	24
Total impaired loans:
Residential real estate	$	2,397		$	2,397			$	2,415			$	231		$	30
Residential construction	—			—				110				—			—
Commercial real estate	6,140			6,519				4,372				104			75
Commercial construction	3,823			3,823				4,016				—			46
Commercial and industrial	1,567			1,837				1,105				56			16
Consumer	—			—				—				—			—
Home equity	281			281				267				14			2
Total	$	14,208		$	14,857			$	12,285			$	405		$	169
The following table presents a summary of information pertaining to impaired loans by segment as of and for the nine months ended September 30, 2013:
	Recorded			Unpaid				Average				Related			Interest Income
	Investment			Balance				Recorded				Allowance			Recognized
								Investment
	(In Thousands)
Impaired loans without a valuation allowance:
Residential real estate	$	1,259		$	1,259			$	1,434			$	—		$	39
Residential construction	—			—				—				—			—
Commercial real estate	5,601			5,915				3,632				—			172
Commercial construction	3,823			3,823				4,113				—			147
Commercial and industrial	1,234			1,504				858				—			28
Consumer	—			—				—				—			—
Home equity	118			118				131				—			4
Total	$	12,035		$	12,619			$	10,168			$	—		$	390
Impaired loans with a valuation allowance:
Residential real estate	$	1,138		$	1,138			$	1,040			$	231		$	21
Residential construction	—			—				165				—			—
Commercial real estate	539			604				442				104			20
Commercial construction	—			—				—				—			—
Commercial and industrial	333			333				137				56			2
Consumer	—			—				—				—			—
Home equity	163			163				94				14			1
Total	$	2,173		$	2,238			$	1,878			$	405		$	44
Total impaired loans:
Residential real estate	$	2,397		$	2,397			$	2,474			$	231		$	60
Residential construction	—			—				165				—			—
Commercial real estate	6,140			6,519				4,074				104			192
Commercial construction	3,823			3,823				4,113				—			147
Commercial and industrial	1,567			1,837				995				56			30
Consumer	—			—				—				—			—
Home equity	281			281				225				14			5
Total	$	14,208		$	14,857			$	12,046			$	405		$	434
The following table presents a summary of information pertaining to impaired loans by segment as of and for the year ended December 31, 2012:
	Recorded			Unpaid				Average				Related			Interest Income
	Investment			Balance				Recorded				Allowance			Recognized
								Investment
	(In Thousands)
Impaired loans without a valuation allowance:
Residential real estate	$	1,512		$	1,512			$	1,228			$	—		$	53
Residential construction	—			—				—				—			—
Commercial real estate	2,835			3,225				3,410				—			141
Commercial construction	4,403			4,403				2,691				—			131
Commercial and industrial	666			891				723				—			25
Consumer	—			—				—				—			—
Home equity	96			96				217				—			5
Total	$	9,512		$	10,127			$	8,269			$	—		$	355
Impaired loans with a valuation allowance:
Residential real estate	$	1,142		$	1,142			$	722			$	183		$	48
Residential construction	331			331				265				31			—
Commercial real estate	344			344				422				47			20
Commercial construction	—			—				43				—			—
Commercial and industrial	—			—				623				—			—
Consumer	—			—				—				—			—
Home equity	—			—				34				—			—
Total	$	1,817		$	1,817			$	2,109			$	261		$	68
Total impaired loans:
Residential real estate	$	2,654		$	2,654			$	1,950			$	183		$	101
Residential construction	331			331				265				31			—
Commercial real estate	3,179			3,569				3,832				47			161
Commercial construction	4,403			4,403				2,734				—			131
Commercial and industrial	666			891				1,346				—			25
Consumer	—			—				—				—			—
Home equity	96			96				251				—			5
Total	$	11,329		$	11,944			$	10,378			$	261		$	423
The following table presents a summary of information pertaining to impaired loans by segment as of and for the three months ended September 30, 2012:
	Recorded			Unpaid				Average				Related			Interest Income
	Investment			Balance				Recorded				Allowance			Recognized
								Investment
	(In Thousands)
Impaired loans without a valuation allowance:
Residential real estate	$	1,050		$	1,050			$	967			$	—		$	11
Residential construction	—			—				—				—			—
Commercial real estate	3,356			3,756				3,402				—			41
Commercial construction	4,490			4,490				4,419				—			53
Commercial and industrial	871			871				889				—			9
Consumer	—			—				—				—			—
Home equity	188			188				205				—			1
Total	$	9,955		$	10,355			$	9,882			$	—		$	115
Impaired loans with a valuation allowance:
Residential real estate	$	634		$	634			$	502			$	98		$	6
Residential construction	331			331				331				15			—
Commercial real estate	345			345				470				47			5
Commercial construction	—			—				—				—			—
Commercial and industrial	296			296				582				122			—
Consumer	—			—				—				—			—
Home equity	35			35				51				13			—
Total	$	1,641		$	1,641			$	1,936			$	295		$	11
Total impaired loans:
Residential real estate	$	1,684		$	1,684			$	1,469			$	98		$	17
Residential construction	331			331				331				15			—
Commercial real estate	3,701			4,101				3,872				47			46
Commercial construction	4,490			4,490				4,419				—			53
Commercial and industrial	1,167			1,167				1,471				122			9
Consumer	—			—				—				—			—
Home equity	223			223				256				13			1
Total	$	11,596		$	11,996			$	11,818			$	295		$	126
The following table presents a summary of information pertaining to impaired loans by segment as of and for the nine months ended September 30, 2012:
	Recorded			Unpaid				Average				Related			Interest Income
	Investment			Balance				Recorded				Allowance			Recognized
								Investment
	(In Thousands)
Impaired loans without a valuation allowance:
Residential real estate	$	1,050		$	1,050			$	1,157			$	—		$	29
Residential construction	—			—				—				—			—
Commercial real estate	3,356			3,756				3,555				—			146
Commercial construction	4,490			4,490				2,263				—			114
Commercial and industrial	871			871				737				—			31
Consumer	—			—				—				—			—
Home equity	188			188				247				—			3
Total	$	9,955		$	10,355			$	7,959			$	—		$	323
Impaired loans with a valuation allowance:
Residential real estate	$	634		$	634			$	617			$	98		$	16
Residential construction	331			331				248				15			—
Commercial real estate	345			345				441				47			17
Commercial construction	—			—				54				—			—
Commercial and industrial	296			296				779				122			1
Consumer	—			—				—				—			—
Home equity	35			35				43				13			—
Total	$	1,641		$	1,641			$	2,182			$	295		$	34
Total impaired loans:
Residential real estate	$	1,684		$	1,684			$	1,774			$	98		$	45
Residential construction	331			331				248				15			—
Commercial real estate	3,701			4,101				3,996				47			163
Commercial construction	4,490			4,490				2,317				—			114
Commercial and industrial	1,167			1,167				1,516				122			32
Consumer	—			—				—				—			—
Home equity	223			223				290				13			3
Total	$	11,596		$	11,996			$	10,141			$	295		$	357
Delinquency and Nonaccrual
All loan segments greater than 30 days past due are considered delinquent. The Company calculates the number of days past due based on a 30 day month. Management continuously monitors delinquency and nonaccrual levels and trends.
It is the Company’s policy to discontinue the accrual of interest on all loan classes when principal or interest payments are delinquent 90 days or more. The accrual of interest is also discontinued for impaired loans that are delinquent 90 days or more or at management’s discretion.
All interest accrued, but not collected, for all loan classes, including impaired loans that are placed on nonaccrual or charged off, is reversed against interest income. Interest recognized on these loans is limited to interest payments received until qualifying for return to accrual. All loan classes are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured.
The following table presents an aging analysis of past due loans as of September 30, 2013:
	31-59 Days			60-89 Days				90 Days or Greater Past Due				Total			Current			Total			Nonaccrual
	Past Due			Past Due								Past Due						Loans			Loans
	(In Thousands)
Residential real estate	$	2,673		$	77			$	740			$	3,490		$	110,552		$	114,042		$	2,152
Residential construction	—			—				—				—			5,192			5,192			—
Commercial real estate	3,093			200				—				3,293			183,243			186,536			3,364
Commercial construction	—			—				—				—			34,154			34,154			—
Commercial and industrial	293			90				959				1,342			88,812			90,154			1,417
Consumer	13			12				3				28			2,391			2,419			23
Home equity	117			15				172				304			32,038			32,342			231
Total	$	6,189		$	394			$	1,874			$	8,457		$	456,382		$	464,839		$	7,187
The following table presents an aging analysis of past due loans as of December 31, 2012:
	31-59 Days			60-89 Days				90 Days or Greater Past Due				Total			Current			Total			Nonaccrual
	Past Due			Past Due								Past Due						Loans			Loans
	(In Thousands)
Residential real estate	$	2,568		$	160			$	1,575			$	4,303		$	115,962		$	120,265		$	2,587
Residential construction	—			—				331				331			4,003			4,334			331
Commercial real estate	526			293				609				1,428			188,044			189,472			902
Commercial construction	—			—				—				—			35,781			35,781			—
Commercial and industrial	491			61				47				599			83,984			84,583			47
Consumer	57			—				1				58			2,434			2,492			24
Home equity	128			18				60				206			31,525			31,731			96
Total	$	3,770		$	532			$	2,623			$	6,925		$	461,733		$	468,658		$	3,987
Troubled Debt Restructurings ("TDR")
TDR loans consist of loans where the Company, for economic or legal reasons related to the borrower’s financial difficulties, granted a concession to the borrower that the Company would not otherwise consider. TDRs can take the form of a reduction in the stated interest rate, receipts of assets from a debtor in partial or full satisfaction of a loan, the extension of the maturity date, or the reduction of either the interest or principal. Once a loan has been identified as a TDR, it will continue to be reported as a TDR until the loan is paid in full.
In the normal course of business, the Company may modify a loan for a credit worthy borrower where the modified loan is not considered a TDR. In these cases, the modified terms are consistent with loan terms available to credit worthy borrowers and within normal loan pricing. The modifications to such loans are done according to existing underwriting standards which include review of historical financial statements, including current interim information if available, an analysis of the causes of the borrower’s decline in performance and projections to assess repayment ability going forward.
During the nine months ended September 30, 2013 and 2012, the Company had no TDRs that had been modified within the previous twelve month periods that had subsequently defaulted. TDR loans are considered defaulted at 90 days past due.
At September 30, 2013 and December 31, 2012, the Company was not committed to lend any additional funds to borrowers whose loans were nonperforming, impaired or restructured.
The following tables are a summary of accruing and non-accruing TDR loans modified as TDRs by segment at the dates indicated:
For the Nine Months Ended September 30, 2013		Number of		Recorded				Recorded				Current
		Modifications		Investment				Investment				Balance
				Pre-Modification				Post-Modification
		(In Thousands)
Residential real estate		—		$	—			$	—			$	—
Residential construction		—		—				—				—
Commercial real estate		1		249				249				249
Commercial construction		—		—				—				—
Commercial and industrial		—		—				—				—
Consumer		—		—				—				—
Home equity		—		—				—				—
Total		1		$	249			$	249			$	249
During the nine months ended September 30, 2013, the Company had one TDR totaling $249,000 entered into with a borrower who was experiencing financial difficulty. There were no TDRs recorded during the three months ended September 30, 2013. The Company reviews TDRs on a loan by loan basis and applies specific reserves to loan balances in excess of collateral values if sufficient borrower cash flow cannot be identified. At September 30, 2013, the specific reserve related to the TDR was $12,000. The modification granted did not result in a reduction of the recorded investment. TDRs granted in 2013 were primarily the result of concessions to reduce the interest rate or extension of the maturity date. At September 30, 2013, the Company had one troubled debt restructuring totaling $249,000 included in nonperforming loans. The one restructured loan continues to be reported on nonaccrual but has been performing as modified. For the three months ended September 30, 2013, interest income recorded from the restructured loan amounted to approximately $3,000. For the nine months ended September 30, 2013, interest income recorded from the restructured loan amounted to approximately $11,000.
For the Three Months Ended September 30, 2012		Number of		Recorded				Recorded				Current
		Modifications		Investment				Investment				Balance
				Pre-Modification				Post-Modification
		(In Thousands)
Residential real estate		—		$	—			$	—			$	—
Residential construction		—		—				—				—
Commercial real estate		1		264				204				204
Commercial construction		—		—				—				—
Commercial and industrial		—		—				—				—
Consumer		—		—				—				—
Home equity		—		—				—				—
Total		1		$	264			$	204			$	204
During the three months ended September 30, 2012, the Company had one TDR totaling $204,000 entered into with borrowers who were experiencing financial difficulty. For the three months ended September 30, 2012, the interest income recorded from the restructured loans amounted to approximately $8,000. The Company reviews TDRs on a loan by loan basis and applies specific reserves to loan balances in excess of collateral values if sufficient borrower cash flow cannot be identified. The modifications granted did not result in a reduction of the recorded investment. TDRs granted in 2012 were primarily the result of concessions to reduce the interest rate or extension of the maturity date.
For the Nine Months Ended September 30, 2012		Number of		Recorded				Recorded				Current
		Modifications		Investment				Investment				Balance
				Pre-Modification				Post-Modification
		(In Thousands)
Residential real estate		1		$	118			$	127			$	126
Residential construction		—		—				—				—
Commercial real estate		2		412				449				448
Commercial construction		—		—				—				—
Commercial and industrial		2		212				212				207
Consumer		1		27				27				24
Home equity		1		38				38				37
Total		7		$	807			$	853			$	842
During the nine months ended September 30, 2012, the Company had seven TDRs totaling $853,000 entered into with borrowers who were experiencing financial difficulty. At September 30, 2012, the Company had six TDRs totaling $740,000 included in nonperforming loans. The six restructured loans continue to be reported on nonaccrual but have been performing as modified. For the nine months ended September 30, 2012, the interest income recorded from the restructured loans amounted to approximately $18,000. At September 30, 2012, the specific reserves related to TDRs granted in 2012 was $125,000.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	Fair Value Measurements
	Certain assets and liabilities are recorded at fair value to provide additional insight into the Company's quality of earnings. Some of these assets and liabilities are measured on a recurring basis while others are measured on a nonrecurring basis, with the determination based upon applicable existing accounting pronouncements. For example, available-for-sale securities are recorded at fair value on a recurring basis. Other assets, such as, mortgage servicing rights, loans held for sale, and impaired loans, are recorded at fair value on a nonrecurring basis using the lower of cost or market methodology to determine impairment of individual assets. The Company groups assets and liabilities which are recorded at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. Levels within the fair value hierarchy are based on the lowest level of input that is significant to the fair value measurement (with Level 1 considered highest and Level 3 considered lowest). A brief description of each level follows.
	Level 1 - Valuation is based upon quoted prices for identical instruments in active markets.
	Level 2 - Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market.
	Level 3 - Valuation is generated from model-based techniques that use at least one significant assumption not observable in the market. These unobservable assumptions reflect estimates that market participants would use in pricing the asset or liability. Valuation includes use of discounted cash flow models and similar techniques.
	The fair value methods and assumptions are set forth below.
	Cash and cash equivalents. The carrying amounts of cash equivalents and due from banks and federal funds sold approximate their relative fair values. As such, the Company classifies these financial instruments as Level 1.
	Held-to-maturity and non-marketable securities. The fair values of held-to-maturity securities are estimated by independent providers. In obtaining such valuation information from third parties, the Company has evaluated their valuation methodologies used to develop the fair values in order to determine whether the valuations are representative of an exit price in the Company's principal markets. The Company's principal markets for its securities portfolios are the secondary institutional markets, with an exit price that is predominately reflective of bid level pricing in those markets. Fair values are calculated based on the value of one unit without regard to any premium or discount that may result from concentrations of ownership of a financial instrument, possible tax ramifications, or estimated transaction costs. If these considerations had been incorporated into the fair value estimates, the aggregate fair value could have been changed. The carrying values of non-marketable securities approximate fair values. As such, the Company classifies held-to-maturity and non-marketable securities as Level 2.
	Available-for-sale securities. Fair value of securities are primarily measured using unadjusted information from an independent pricing service. The securities measured at fair value in Level 1 are based on quoted market prices in an active exchange market. These securities include marketable equity securities.
	Loans. Fair values are estimated for portfolios of loans with similar financial characteristics. The fair values of performing loans are calculated by discounting scheduled cash flows through the estimated maturity using estimated market discount rates that reflect the credit and interest risk inherent in the loan. The estimates of maturity are based on the Company's historical experience with repayments for each loan classification, modified, as required, by an estimate of the effect of current economic and lending conditions, and the effects of estimated prepayments. Assumptions regarding risk, cash flows, and discount rates are judgmentally determined using available market information and specific borrower information. Management has made estimates of fair value presented above would be indicative of the value negotiated in an actual sale. As such, the Company classifies loans as level 3. Fair values of impaired loans are based on estimated cash flows and are discounted using a rate commensurate with the risk associated with the estimated cash flows, or if collateral dependent, discounted to the appraised value of the collateral, less costs to sell.
	Loans held for sale. Loans held for sale are recorded at the lower of carrying value or market value. The fair value of mortgage loans held for sale is based on what secondary markets are currently offering for portfolios with similar characteristics. As such, the Company classifies loans held for sale as nonrecurring Level 2.
	OREO. Real estate acquired through foreclosure is recorded at fair value. The fair value of OREO is based on property appraisals and an analysis of similar properties currently available. As such, the Company records OREO as nonrecurring Level 2.
	Mortgage servicing rights. Mortgage servicing rights represent the value associated with servicing residential mortgage loans. Servicing assets and servicing liabilities are reported using the amortization method. In evaluating the carrying values of the mortgage servicing rights, the Company obtains third party valuations based on loan level data including note rate, type and term of the underlying loans. As such, the Company classifies mortgage servicing rights as nonrecurring Level 2.
	Accrued interest receivable. The fair value estimate of this financial instrument approximates the carrying value as this financial instrument has a short maturity. It is the Company's policy to stop accruing interest on loans for which it is probable that the interest is not collectable. Therefore, this financial instrument has been adjusted for estimated credit loss. As such, the Company classifies accrued interest receivable Level 2.
	Deposits. The fair value of deposits is based on the discounted value of contractual cash flows. The discount rate is estimated using the rates currently offered for deposits of similar remaining maturities. The fair value estimates do not include the benefit that results from the low-cost funding provided by the deposits compared to the cost of borrowing funds in the market. If that value were considered, the fair value of the Company's net assets could increase. As such, the Company classifies deposits as Level 2.
	Borrowed funds. The fair value of borrowed funds is based on the discounted value of contractual cash flows. The discount rate is estimated using the rates currently available for borrowings of similar remaining maturities. As such, the Company classifies borrowed funds as Level 2.
	Accrued interest payable. The fair value estimate approximates the carrying amount as this financial instrument has a short maturity. As such, the Company classifies accrued interest payable as Level 2.
	Off-balance-sheet instruments. Off-balance-sheet instruments include loan commitments. Fair values for loan commitments have not been presented as the future revenue derived from such financial instruments is not significant.
	Limitations. Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These values do not reflect any premium or discount that could result from offering for sale at one time the Company's entire holdings of a particular financial instrument. Because no market exists for a significant portion of the Company's financial instruments, fair value estimates are based on Management's judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions could significantly affect these estimates. Fair value estimates are based on existing on- and off-balance-sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. Other significant assets and liabilities that are not considered financial instruments include the deferred tax asset, premise and equipment, and OREO. In addition, tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in any of these estimates.
	Assets that were measured at fair value as of September 30, 2013 and December 31, 2012 on a recurring basis are summarized below:
		Fair Value Measurements Using
		September 30, 2013		Readily Available		Observable		Determined
				Market Prices		Market Data		Fair Value
				(Level 1)		(Level 2)		(Level 3)
	Assets (market approach)	(Dollars In Thousands)
	Available-for-sale securities
	Equity securities by industry type:
	Financial	$	631	$	631	$	—	$	—
		Fair Value Measurements Using
		December 31, 2012		Readily Available		Observable		Determined
				Market Prices		Market Data		Fair Value
				(Level 1)		(Level 2)		(Level 3)
	Assets (market approach)	(Dollars In Thousands)
	Available-for-sale securities
	Equity securities by industry type:
	Financial	$	621	$	621	$	—	$	—
	Assets measured at fair value on a nonrecurring basis as of September 30, 2013 and December 31, 2012 are summarized below:
		Fair Value Measurements Using
		September 30, 2013		Readily Available		Observable		Determined
				Market Prices		Market Data		Fair Value
				(Level 1)		(Level 2)		(Level 3)
		(Dollars In Thousands)
	Assets
	Impaired loans with a valuation allowance, net	$	1,768	$	—	$	—	$	1,768
	OREO	501		—		501		—
	Loans held for sale	135		—		135		—
		Fair Value Measurements Using
		December 31, 2012		Readily Available		Observable		Determined
				Market Prices		Market Data		Fair Value
				(Level 1)		(Level 2)		(Level 3)
		(Dollars In Thousands)
	Assets
	Impaired loans with a valuation allowance, net	$	1,556	$	—	$	—	$	1,556
	OREO	572		—		572		—
	Mortgage servicing rights	147		—		147		—
	Impaired loans are presented net of their related specific reserve of $405,000 and $261,000 as of September 30, 2013 and December 31, 2012, respectively.
	Fair Value of Financial Instruments.
	FASB ASC Topic 825, "Financial Instruments", requires disclosures of fair value information about financial instruments, whether or not recognized in the balance sheet, if the fair values can be reasonably determined. Fair value is best determined based upon quoted market prices. However, in many instances, there are no quoted market prices for the Company's various financial instrument's. In cases where quoted prices are not available, fair values are based on estimates using present value or other valuation techniques using observable inputs when available. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument. FASB ASC Topic 825 excludes certain financial instruments and all non-financial instruments from its disclosure requirements. Accordingly, the aggregate fair value amounts presented may not necessarily represent the underlying fair value of the Company.
				Fair Value Measurements Using
		Carrying Amount		Readily Available		Observable		Determined
		at September 30, 2013		Market Prices		Market Data		Fair Value
				(Level 1)		(Level 2)		(Level 3)
		(Dollars In Thousands)
Financial assets:
Cash and cash equivalents	$	53,591	$	53,591	$	—	$	—
Available-for-sale securities	631		631		—		—
Held-to-maturity securities	55,119		—		60,977		—
FHLB stock	3,914		—		3,914		—
Residential real estate	113,420		—		—		110,242
Residential construction	5,117		—		—		5,077
Commercial real estate	184,574		—		—		183,873
Commercial construction	33,738		—		—		30,655
Commercial and industrial	88,964		—		—		87,541
Consumer	2,381		—		—		2,477
Home equity	32,206		—		—		32,306
Net loans	460,400		—		—		452,171
Loans held for sale	135		—		135		—
Accrued interest and dividends receivable	1,613		—		1,613		—
Mortgage servicing rights	422		—		789		—
Financial liabilities:
Deposits	$	484,514	$	—	$	475,849	$	—
Securities sold under agreements to repurchase	1,793		—		1,793		—
Advances from FHLB	26,348		—		27,107		—
Accrued interest payable	51		—		51		—
			Fair Value Measurements Using
	Carrying Amount		Readily Available		Observable		Determined
	at December 31, 2012		Market Prices		Market Data		Fair Value
			(Level 1)		(Level 2)		(Level 3)
	(Dollars In Thousands)
Financial assets:
Cash and cash equivalents	$	39,608	$	41,494	$	—	$	—
Available-for-sale securities	621		590		—		—
Held-to-maturity securities	59,568		—		69,834		—
FHLB stock	4,277		—		4,277		—
Residential real estate	119,729		—		—		115,593
Residential construction	4,241		—		—		4,217
Commercial real estate	187,506		—		—		185,687
Commercial construction	35,279		—		—		35,708
Commercial and industrial	83,484		—		—		83,670
Consumer	2,448		—		—		2,649
Home equity	31,607		—		—		31,832
Net loans	464,294		—		—		459,356
Accrued interest and dividends receivable	1,567		—		1,567		—
Mortgage servicing rights	368		—		444		—
Financial liabilities:
Deposits	$	466,177	$	—	$	468,966	$	—
Securities sold under agreements to repurchase	9,763		—		9,763		—
Advances from FHLB	33,332		—		35,105		—
Accrued interest payable	60		—		60		—

Other_Comprehensive_Income

Other Comprehensive Income	9 Months Ended
	Sep. 30, 2013
Statement of Other Comprehensive Income [Abstract]	'
Other Comprehensive Income	'
	Other Comprehensive Income
	As of the balance sheet dates, accumulated other comprehensive income was entirely comprised of net unrealized gains on available-for-sale investment securities. The following table illustrates changes in the balances of each component of accumulated other comprehensive income for the dates indicated:
		Three Months Ended September 30,
		2013		2012
		(Dollars in Thousands)
	Beginning balance	$	14	$	(22	)
	Current-period change	19		4
	Ending balance	$	33	$	(18	)
		Nine Months Ended September 30,
		2013		2012
		(Dollars in Thousands)
	Beginning balance	$	26	$	(3	)
	Current-period change	7		(15		)
	Ending balance	$	33	$	(18	)
	There were no sales of available-for-sale securities during 2013 or 2012.

Common_Stock

Common Stock	9 Months Ended
	Sep. 30, 2013
Equity [Abstract]	'
Common Stock	'
	Common Stock
	On June 1, 2012, the Company announced that the Board of Directors authorized a Seventh Stock Repurchase Program for the purchase of up to 272,000 shares, or approximately 5%, of the Company’s then outstanding common stock. During the three months ended September 30, 2013, the Company repurchased 13,700 shares of Company stock, at an average price per share of $17.60. As of September 30, 2013, a total of 235,646 shares may yet be repurchased under the current stock repurchase program. The Company intends to repurchase its shares from time to time at prevailing prices in the open market, in block transactions or in privately negotiated transactions. Repurchases will be made under rule 10b-5(1) repurchase plans. The repurchased shares will be held by the Company as treasury stock and will be available for general corporate purposes.

Subsequent_Events

Subsequent Events	9 Months Ended
	Sep. 30, 2013
Subsequent Events [Abstract]	'
Subsequent Events	'
	Subsequent Events
	Subsequent events represent events or transactions occurring after the balance sheet date but before the financial statements are issued or are available to be issued. Financial statements are considered “issued” when they are widely distributed to shareholders and others for general use and reliance in a form and format that complies with GAAP. Financial statements are considered “available to be issued” when they are complete in form and format that complies with GAAP and all approvals necessary for their issuance have been obtained.
	The Company is an SEC filer and management has evaluated subsequent events through the date that the financial statements were issued. On October 25, 2013, the Company announced a quarterly cash dividend of $0.05 per share of its common stock to stockholders of record as of the close of business on November 8, 2013, payable on or about November 20, 2013.

Recent_Accounting_Pronouncemen1

Recent Accounting Pronouncements - (Policies)	9 Months Ended
	Sep. 30, 2013
Accounting Changes and Error Corrections [Abstract]	'
Recent Accounting Pronouncements	'
	In December 2011, the Financial Accounting Standards Board ("FASB") issued Accounting Standard Update ("ASU") 2011-11, “Balance Sheet (Topic 210):  Disclosures about Offsetting Assets and Liabilities,” amending Topic 210.  The amendments require an entity to disclose both gross and net information about both instruments and transactions that are eligible for offset on the balance sheet and instruments and transactions that are subject to an agreement similar to a master netting arrangement.  This guidance is effective for annual periods beginning on or after January 1, 2013 and interim periods within those annual periods, with retrospective disclosure for all comparative periods presented.  The adoption of ASU 2011-11 did not have a material impact on the Company's consolidated financial statements.
	In February 2013, the FASB issued ASU No. 2013-02, "Comprehensive Income (Topic 220): Reporting of Amounts Reclassified out of Accumulated Other Comprehensive Income". This ASU improves the reporting of reclassifications out of accumulated other comprehensive income. The amendments in the ASU seek to attain that objective by requiring an entity to report the effect of significant reclassifications out of accumulated other comprehensive income on the respective line items in net income if the amount being reclassified is required under U.S. generally accepted accounting principles (“GAAP”) to be reclassified in its entirety to net income. For other amounts that are not required under GAAP to be reclassified in their entirety to net income in the same reporting period, an entity is required to cross-reference other disclosures required under GAAP that provide additional detail about those amounts. This guidance is effective for reporting periods beginning after December 15, 2012, with early adoption permitted. The adoption of ASU 2013-02 did not have a material effect on the Company's consolidated financial statements.

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	Earnings per share is computed as follows:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Net income (in thousands)	$	573		$	623		$	1,883		$	1,471
	Weighted average number of common shares issued	7,439,368			7,439,368			7,439,368			7,439,368
	Less: average number of treasury shares	(2,015,832		)	(1,929,399		)	(2,012,484		)	(1,848,185		)
	Less: average number of unallocated ESOP shares	(386,848		)	(416,605		)	(386,848		)	(416,605		)
	Less: average number of dilutive restricted stock awards	(1,200		)	(16,096		)	(1,301		)	(42,002		)
	Adjusted weighted average number of common shares outstanding	5,035,488			5,077,268			5,038,735			5,132,576
	Plus: dilutive outstanding restricted stock awards	377			12,872			370			25,419
	Plus: dilutive outstanding stock options	102,950			12,702			86,333			484
	Weighted average number of diluted shares outstanding	5,138,815			5,102,842			5,125,438			5,158,479
	Earnings per share:
	Basic-common stock	$	0.11		$	0.12		$	0.37		$	0.29
	Basic-unvested share-based payment awards	$	0.11		$	0.12		$	0.37		$	0.29
	Diluted-common stock	$	0.11		$	0.12		$	0.37		$	0.29
	Diluted-unvested share-based payment awards	$	0.11		$	0.12		$	0.37		$	0.29

Equity_Incentive_Plan_Tables

Equity Incentive Plan (Tables)	9 Months Ended
	Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Weighted Average Assumptions for Options Granted	'
	The fair value of each option granted is estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions for options granted during the year ended December 31, 2012, and the nine months ended September 30, 2013:
		Nine Months Ended September 30,		Year Ended
				December 31,
		2013		2012
	Expected dividend yield	1.39	%	0.86	%
	Weighted average expected term	6.50 years		6.50 years
	Weighted average expected volatility	24.06	%	23.27	%
	Weighted average risk-free interest rate	1.25	%	1.4	%
Summary of Options under Plan and Changes	'
	A summary of options under the Plan as of September 30, 2013, and changes during the nine months ended September 30, 2013, is as follows:
		Number of		Weighted Average		Weighted Average	Aggregate
		Shares		Exercise Price		Remaining	Intrinsic
						Contractual Term	Value
						(in years)	(000's)
	Outstanding at December 31, 2012	595,198		$	14.24	5.15	$	983
	Granted	100,000		16.55		9.32	—
	Exercised	—		—		—	—
	Forfeited or expired	—		—		—	—
	Outstanding at September 30, 2013	695,198		$	14.57	5.11	$	2,112
	Exercisable at September 30, 2013	534,598		$	14.26	3.99	$	1,790
	Exercisable at September 30, 2012	517,598		$	14.27	4.87	$	92
Summary of Status of Stock Awards and Changes	'
	A summary of the status of the Company’s stock awards as of September 30, 2013, and changes during the nine months ended September 30, 2013, is as follows:
	Nonvested Shares	Number of		Weighted
		Shares		Average
				Grant-Date
				Fair Value
	Outstanding at December 31, 2012	1,600		$	14.08
	Granted	—		—
	Vested	400		14.08
	Forfeited	—		—
	Outstanding at September 30, 2013	1,200		$	14.08

Investment_Securities_Tables

Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2013
Investments, Debt and Equity Securities [Abstract]	'
Amortized Cost and Estimated Fair Value of Securities, with Gross Unrealized Gains and Losses	'
	The following tables set forth, at the dates indicated, information regarding the amortized cost and fair value, with gross unrealized gains and losses of the Company's investment securities:
		September 30, 2013
		Amortized			Gross				Gross			Fair
		Cost			Unrealized				Unrealized			Value
					Gains				Losses
		(In Thousands)
	Available-for-sale securities
	Marketable equity securities	$	581		$	55			$	(5	)	$	631
	Total available-for-sale securities	$	581		$	55			$	(5	)	$	631
	Held-to-maturity securities
	U.S. Treasury securities	$	10,997		$	3			$	—		$	11,000
	Corporate and industrial
	revenue bonds	35,034			5,804				—			40,838
	Certificates of deposit	8,373			15				—			8,388
	Collateralized mortgage obligations	715			36				—			751
	Total held-to-maturity securities	$	55,119		$	5,858			$	—		$	60,977
	Non-marketable securities
	Federal Home Loan Bank stock	$	3,914		$	—			$	—		$	3,914
	Banker's Bank stock	183			—				—			183
	Total non-marketable securities	$	4,097		$	—			$	—		$	4,097
		December 31, 2012
		Amortized			Gross				Gross			Fair
		Cost			Unrealized				Unrealized			Value
					Gains				Losses
		(In Thousands)
	Available-for-sale securities
	Marketable equity securities	$	581		$	40			$	—		$	621
	Total available-for-sale securities	$	581		$	40			$	—		$	621
	Held-to-maturity securities
	U.S. Treasury securities	$	13,691		$	2			$	—		$	13,693
	Corporate and industrial
	revenue bonds	35,656			7,481				—			43,137
	Certificates of deposit	9,041			4				—			9,045
	Collateralized mortgage obligations	1,180			53				—			1,233
	Total held-to-maturity securities	$	59,568		$	7,540			$	—		$	67,108
	Non-marketable securities
	Federal Home Loan Bank stock	$	4,277		$	—			$	—		$	4,277
	Banker's Bank stock	183			—				—			183
	Total non-marketable securities	$	4,460		$	—			$	—		$	4,460
Collateralized Mortgage Obligations Allocated to Maturity Categories According to Final Maturity Date	'
	The collateralized mortgage obligations are allocated to maturity categories according to final maturity date.
		Held-to-maturity
		Amortized			Fair Value
		Cost
		(In Thousands)
	Within 1 year	$	19,370		$	19,388
	From 1 to 5 years	440			462
	From 5 to 10 years	8,339			9,401
	Over 10 years	26,970			31,726
		$	55,119		$	60,977
Schedule of Investments with Continuous Unrealized Losses	'
	The following table presents the fair value of investments with continuous unrealized losses as of September 30, 2013:
			30-Sep-13
			Less Than Twelve Months							Twelve Months and Over					Total
			(In Thousands)
						Gross							Gross				Gross
			Fair			Unrealized				Fair			Unrealized		Fair		Unrealized
			Value			Losses				Value			Losses		Value		Losses
	Marketable equity securities		$	212		$	(5	)		$	—		$	—	$	212	$	(5	)
	Total temporarily impaired securities		$	212		$	(5	)		$	—		$	—	$	212	$	(5	)

Loans_and_Allowance_for_Loan_L1

Loans and Allowance for Loan Losses (Tables)	9 Months Ended
	Sep. 30, 2013
Receivables [Abstract]	'
Composition of Loan Portfolio	'
	The following table sets forth the composition of the Company’s loan portfolio in dollar amounts and as a percentage of the respective portfolio.
		September 30, 2013						December 31, 2012
		Amount			Percent			Amount				Percent
					of Total							of Total
		(Dollars In Thousands)
	Real estate loans:
	Residential1	$	114,042		24.5	%		$	120,265			25.7	%
	Home equity	32,342			7	%		31,731				6.8	%
	Commercial	186,536			40.1	%		189,472				40.4	%
	Total	332,920			71.6	%		341,468				72.9	%
	Construction-residential	5,192			1.1	%		4,334				0.9	%
	Construction-commercial	34,154			7.3	%		35,781				7.6	%
	Total	39,346			8.4	%		40,115				8.5	%
	Total real estate loans	372,266			80	%		381,583				81.4	%
	Consumer loans	2,419			0.6	%		2,492				0.6	%
	Commercial and industrial loans	90,154			19.4	%		84,583				18	%
	Total loans	464,839			100	%		468,658				100	%
	Deferred loan origination costs, net	909						917
	Allowance for loan losses	(4,439		)				(4,364		)
	Loans, net	$	461,309					$	465,211
	1 Excludes loans held for sale of $135,000 at September 30, 2013. There were no loans held for sale at December 31, 2012.
Analysis of Total Loans Segregated by Risk Rating and Segment	'
	The following table presents an analysis of total loans segregated by risk rating and segment as of September 30, 2013:
		Commercial Credit Risk Exposure
		Commercial and Industrial			Commercial				Commercial				Total
					Construction				Real Estate
		(In Thousands)
	Pass	$	82,533		$	24,825			$	172,657			$	280,015
	Special mention	4,977			5,507				6,878				17,362
	Substandard	2,644			3,822				7,001				13,467
	Doubtful	—			—				—				—
	Loss	—			—				—				—
	Total commercial loans	$	90,154		$	34,154			$	186,536			$	310,844
		Residential Credit Risk Exposure
		Residential			Residential								Total
		Real Estate			Construction
		(In Thousands)
	Performing	$	111,645		$	5,192							$	116,837
	Substandard (accruing)	245			—								245
	Substandard (nonaccrual)	2,152			—								2,152
	Total residential loans	$	114,042		$	5,192							$	119,234
		Consumer Credit Risk Exposure
		Consumer			Home Equity								Total
		(In Thousands)
	Performing	$	2,396		$	32,061							$	34,457
	Substandard (accruing)	—			50								50
	Nonperforming (nonaccrual)	23			231								254
	Total consumer loans	$	2,419		$	32,342							$	34,761
	The following table presents an analysis of total loans segregated by risk rating and segment as of December 31, 2012:
		Commercial Credit Risk Exposure
		Commercial and Industrial			Commercial				Commercial				Total
					Construction				Real Estate
		(In Thousands)
	Pass	$	75,656		$	23,214			$	178,337			$	277,207
	Special mention	8,006			8,164				7,529				23,699
	Substandard	874			4,403				3,606				8,883
	Doubtful	47			—				—				47
	Loss	—			—				—				—
	Total commercial loans	$	84,583		$	35,781			$	189,472			$	309,836
		Residential Credit Risk Exposure
		Residential			Residential								Total
		Real Estate			Construction
		(In Thousands)
	Performing	$	117,612		$	4,003							$	121,615
	Substandard (accruing)	66			—								66
	Substandard (nonaccrual)	2,587			331								2,918
	Total residential loans	$	120,265		$	4,334							$	124,599
		Consumer Credit Risk Exposure
		Consumer			Home Equity								Total
		(In Thousands)
	Performing	$	2,468		$	31,635							$	34,103
	Nonperforming (nonaccrual)	24			96								120
	Total consumer loans	$	2,492		$	31,731							$	34,223
Allowance for Loan Losses and Select Loan Information	'
	The following table presents the allowance for loan losses and select loan information as of and for the three months ended September 30, 2013:
		Residential			Residential				Commercial				Commercial			Commercial and Industrial			Consumer			Home			Total
		Real Estate			Construction				Real Estate				Construction						Loans			Equity
	Allowance for loan losses	(In Thousands)
	Balance as of June 30, 2013	$	561		$	52			$	1,921			$	373		$	1,251		$	38		$	140		$	4,336
	Provision for (reduction of) loan losses	113			23				39				43			(15		)	13			(4		)	212
	Recoveries	—			—				2				—			1			3			—			6
	Loans charged off	(52		)	—				—				—			(47		)	(16		)	—			(115		)
	Balance as of September 30, 2013	$	622		$	75			$	1,962			$	416		$	1,190		$	38		$	136		$	4,439
	The following table presents the allowance for loan losses and select loan information as of and for the nine months ended September 30, 2013:
		Residential			Residential				Commercial				Commercial			Commercial and Industrial			Consumer			Home			Total
		Real Estate			Construction				Real Estate				Construction						Loans			Equity
	Allowance for loan losses	(In Thousands)
	Balance as of December 31, 2012	$	536		$	93			$	1,966			$	502		$	1,099		$	44		$	124		$	4,364
	Provision for (reduction of) loan losses	198			44				(15		)		(86		)	101			16			12			270
	Recoveries	1			—				11				—			37			11			—			60
	Loans charged off	(113		)	(62		)		—				—			(47		)	(33		)	—			(255		)
	Balance as of September 30, 2013	$	622		$	75			$	1,962			$	416		$	1,190		$	38		$	136		$	4,439
	Allowance for loan losses ending balance
	Collectively evaluated for impairment	$	391		$	75			$	1,858			$	416		$	1,134		$	38		$	122		$	4,034
	Individually evaluated for impairment	231			—				104				—			56			—			14			405
		$	622		$	75			$	1,962			$	416		$	1,190		$	38		$	136		$	4,439
	Total loans ending balance
	Collectively evaluated for impairment	$	111,645		$	5,192			$	180,396			$	30,331		$	88,587		$	2,419		$	32,061		$	450,631
	Individually evaluated for impairment	2,397			—				6,140				3,823			1,567			—			281			14,208
		$	114,042		$	5,192			$	186,536			$	34,154		$	90,154		$	2,419		$	32,342		$	464,839
	The following table presents the allowance for loan losses and select loan information as of and for the year ended December 31, 2012:
		Residential			Residential				Commercial				Commercial			Commercial and Industrial			Consumer			Home			Total
		Real Estate			Construction				Real Estate				Construction						Loans			Equity
	Allowance for loan losses	(In Thousands)
	Balance as of December 31, 2011	$	549		$	89			$	1,891			$	526		$	1,343		$	47		$	131		$	4,576
	Provision for (reduction of) loan losses	84			4				140				(24		)	158			52			28			442
	Recoveries	1			—				—				—			4			19			—			24
	Loans charged off	(98		)	—				(65		)		—			(406		)	(74		)	(35		)	(678		)
	Balance as of December 31, 2012	$	536		$	93			$	1,966			$	502		$	1,099		$	44		$	124		$	4,364
	Allowance for loan losses ending balance
	Collectively evaluated for impairment	$	353		$	62			$	1,919			$	502		$	1,099		$	44		$	124		$	4,103
	Individually evaluated for impairment	183			31				47				—			—			—			—			261
		$	536		$	93			$	1,966			$	502		$	1,099		$	44		$	124		$	4,364
	Total loans ending balance
	Collectively evaluated for impairment	$	117,611		$	4,003			$	186,293			$	31,378		$	83,917		$	2,492		$	31,635		$	457,329
	Individually evaluated for impairment	2,654			331				3,179				4,403			666			—			96			11,329
		$	120,265		$	4,334			$	189,472			$	35,781		$	84,583		$	2,492		$	31,731		$	468,658
	The following table presents the allowance for loan losses and select loan information as of and for three months ended September 30, 2012:
		Residential			Residential				Commercial				Commercial			Commercial and Industrial			Consumer			Home			Total
		Real Estate			Construction				Real Estate				Construction						Loans			Equity
	Allowance for loan losses	(In Thousands)
	Balance as of June 30, 2012	$	369		$	94			$	1,852			$	589		$	1,352		$	46		$	180		$	4,482
	Provision for (reduction of) loan losses	54			3				134				(39		)	52			10			(45		)	169
	Recoveries	—			—				—				—			2			3			—			5
	Loans charged off	—			—				(65		)		—			(177		)	(13		)	—			(255		)
	Balance as of September 30, 2012	$	423		$	97			$	1,921			$	550		$	1,229		$	46		$	135		$	4,401
	The following table presents the allowance for loan losses and select loan information as of and for the nine months ended September 30, 2012:
		Residential			Residential				Commercial				Commercial			Commercial and Industrial			Consumer			Home			Total
		Real Estate			Construction				Real Estate				Construction						Loans			Equity
	Allowance for loan losses	(In Thousands)
	Balance as of December 31, 2011	$	549		$	89			$	1,891			$	526		$	1,343		$	47		$	131		$	4,576
	(Reduction of) provision for loan losses	(47		)	8				95				24			109			47			4			240
	Recoveries	1			—				—				—			2			13			—			16
	Loans charged off	(80		)	—				(65		)		—			(225		)	(61		)	—			(431		)
	Balance as of September 30, 2012	$	423		$	97			$	1,921			$	550		$	1,229		$	46		$	135		$	4,401
	Allowance for loan losses ending balance
	Collectively evaluated for impairment	$	325		$	82			$	1,874			$	550		$	1,107		$	46		$	122		$	4,106
Individually evaluated for impairment	98			15				47				—			122			—			13			295
	$	423		$	97			$	1,921			$	550		$	1,229		$	46		$	135		$	4,401
Total loans ending balance
Collectively evaluated for impairment	$	120,340		$	5,199			$	181,954			$	34,369		$	84,514		$	2,598		$	31,370		$	460,344
Individually evaluated for impairment	1,684			331				3,701				4,490			1,167			—			223			11,596
	$	122,024		$	5,530			$	185,655			$	38,859		$	85,681		$	2,598		$	31,593		$	471,940
Information Pertaining to Impaired Loans by Segment	'
	The following table presents a summary of information pertaining to impaired loans by segment as of and for the three months ended September 30, 2013:
		Recorded			Unpaid				Average				Related			Interest Income
		Investment			Balance				Recorded				Allowance			Recognized
									Investment
		(In Thousands)
	Impaired loans without a valuation allowance:
	Residential real estate	$	1,259		$	1,259			$	1,409			$	—		$	19
	Residential construction	—			—				—				—			—
	Commercial real estate	5,601			5,915				3,897				—			64
	Commercial construction	3,823			3,823				4,016				—			46
	Commercial and industrial	1,234			1,504				922				—			14
	Consumer	—			—				—				—			—
	Home equity	118			118				142				—			2
	Total	$	12,035		$	12,619			$	10,386			$	—		$	145
	Impaired loans with a valuation allowance:
	Residential real estate	$	1,138		$	1,138			$	1,006			$	231		$	11
	Residential construction	—			—				110				—			—
	Commercial real estate	539			604				475				104			11
	Commercial construction	—			—				—				—			—
	Commercial and industrial	333			333				183				56			2
	Consumer	—			—				—				—			—
	Home equity	163			163				125				14			—
	Total	$	2,173		$	2,238			$	1,899			$	405		$	24
	Total impaired loans:
	Residential real estate	$	2,397		$	2,397			$	2,415			$	231		$	30
	Residential construction	—			—				110				—			—
	Commercial real estate	6,140			6,519				4,372				104			75
	Commercial construction	3,823			3,823				4,016				—			46
	Commercial and industrial	1,567			1,837				1,105				56			16
	Consumer	—			—				—				—			—
	Home equity	281			281				267				14			2
	Total	$	14,208		$	14,857			$	12,285			$	405		$	169
	The following table presents a summary of information pertaining to impaired loans by segment as of and for the nine months ended September 30, 2013:
		Recorded			Unpaid				Average				Related			Interest Income
		Investment			Balance				Recorded				Allowance			Recognized
									Investment
		(In Thousands)
	Impaired loans without a valuation allowance:
	Residential real estate	$	1,259		$	1,259			$	1,434			$	—		$	39
	Residential construction	—			—				—				—			—
	Commercial real estate	5,601			5,915				3,632				—			172
	Commercial construction	3,823			3,823				4,113				—			147
	Commercial and industrial	1,234			1,504				858				—			28
	Consumer	—			—				—				—			—
	Home equity	118			118				131				—			4
	Total	$	12,035		$	12,619			$	10,168			$	—		$	390
	Impaired loans with a valuation allowance:
	Residential real estate	$	1,138		$	1,138			$	1,040			$	231		$	21
	Residential construction	—			—				165				—			—
	Commercial real estate	539			604				442				104			20
	Commercial construction	—			—				—				—			—
	Commercial and industrial	333			333				137				56			2
	Consumer	—			—				—				—			—
	Home equity	163			163				94				14			1
	Total	$	2,173		$	2,238			$	1,878			$	405		$	44
	Total impaired loans:
	Residential real estate	$	2,397		$	2,397			$	2,474			$	231		$	60
	Residential construction	—			—				165				—			—
	Commercial real estate	6,140			6,519				4,074				104			192
	Commercial construction	3,823			3,823				4,113				—			147
	Commercial and industrial	1,567			1,837				995				56			30
	Consumer	—			—				—				—			—
	Home equity	281			281				225				14			5
Total	$	14,208		$	14,857			$	12,046			$	405		$	434
The following table presents a summary of information pertaining to impaired loans by segment as of and for the year ended December 31, 2012:
	Recorded			Unpaid				Average				Related			Interest Income
	Investment			Balance				Recorded				Allowance			Recognized
								Investment
	(In Thousands)
Impaired loans without a valuation allowance:
Residential real estate	$	1,512		$	1,512			$	1,228			$	—		$	53
Residential construction	—			—				—				—			—
Commercial real estate	2,835			3,225				3,410				—			141
Commercial construction	4,403			4,403				2,691				—			131
Commercial and industrial	666			891				723				—			25
Consumer	—			—				—				—			—
Home equity	96			96				217				—			5
Total	$	9,512		$	10,127			$	8,269			$	—		$	355
Impaired loans with a valuation allowance:
Residential real estate	$	1,142		$	1,142			$	722			$	183		$	48
Residential construction	331			331				265				31			—
Commercial real estate	344			344				422				47			20
Commercial construction	—			—				43				—			—
Commercial and industrial	—			—				623				—			—
Consumer	—			—				—				—			—
Home equity	—			—				34				—			—
Total	$	1,817		$	1,817			$	2,109			$	261		$	68
Total impaired loans:
Residential real estate	$	2,654		$	2,654			$	1,950			$	183		$	101
Residential construction	331			331				265				31			—
Commercial real estate	3,179			3,569				3,832				47			161
Commercial construction	4,403			4,403				2,734				—			131
Commercial and industrial	666			891				1,346				—			25
Consumer	—			—				—				—			—
Home equity	96			96				251				—			5
Total	$	11,329		$	11,944			$	10,378			$	261		$	423
The following table presents a summary of information pertaining to impaired loans by segment as of and for the three months ended September 30, 2012:
	Recorded			Unpaid				Average				Related			Interest Income
	Investment			Balance				Recorded				Allowance			Recognized
								Investment
	(In Thousands)
Impaired loans without a valuation allowance:
Residential real estate	$	1,050		$	1,050			$	967			$	—		$	11
Residential construction	—			—				—				—			—
Commercial real estate	3,356			3,756				3,402				—			41
Commercial construction	4,490			4,490				4,419				—			53
Commercial and industrial	871			871				889				—			9
Consumer	—			—				—				—			—
Home equity	188			188				205				—			1
Total	$	9,955		$	10,355			$	9,882			$	—		$	115
Impaired loans with a valuation allowance:
Residential real estate	$	634		$	634			$	502			$	98		$	6
Residential construction	331			331				331				15			—
Commercial real estate	345			345				470				47			5
Commercial construction	—			—				—				—			—
Commercial and industrial	296			296				582				122			—
Consumer	—			—				—				—			—
Home equity	35			35				51				13			—
Total	$	1,641		$	1,641			$	1,936			$	295		$	11
Total impaired loans:
Residential real estate	$	1,684		$	1,684			$	1,469			$	98		$	17
Residential construction	331			331				331				15			—
Commercial real estate	3,701			4,101				3,872				47			46
Commercial construction	4,490			4,490				4,419				—			53
Commercial and industrial	1,167			1,167				1,471				122			9
Consumer	—			—				—				—			—
Home equity	223			223				256				13			1
Total	$	11,596		$	11,996			$	11,818			$	295		$	126
The following table presents a summary of information pertaining to impaired loans by segment as of and for the nine months ended September 30, 2012:
	Recorded			Unpaid				Average				Related			Interest Income
	Investment			Balance				Recorded				Allowance			Recognized
								Investment
	(In Thousands)
Impaired loans without a valuation allowance:
Residential real estate	$	1,050		$	1,050			$	1,157			$	—		$	29
Residential construction	—			—				—				—			—
Commercial real estate	3,356			3,756				3,555				—			146
Commercial construction	4,490			4,490				2,263				—			114
Commercial and industrial	871			871				737				—			31
Consumer	—			—				—				—			—
Home equity	188			188				247				—			3
Total	$	9,955		$	10,355			$	7,959			$	—		$	323
Impaired loans with a valuation allowance:
Residential real estate	$	634		$	634			$	617			$	98		$	16
Residential construction	331			331				248				15			—
Commercial real estate	345			345				441				47			17
Commercial construction	—			—				54				—			—
Commercial and industrial	296			296				779				122			1
Consumer	—			—				—				—			—
Home equity	35			35				43				13			—
Total	$	1,641		$	1,641			$	2,182			$	295		$	34
Total impaired loans:
Residential real estate	$	1,684		$	1,684			$	1,774			$	98		$	45
Residential construction	331			331				248				15			—
Commercial real estate	3,701			4,101				3,996				47			163
Commercial construction	4,490			4,490				2,317				—			114
Commercial and industrial	1,167			1,167				1,516				122			32
Consumer	—			—				—				—			—
Home equity	223			223				290				13			3
Total	$	11,596		$	11,996			$	10,141			$	295		$	357
Aging Analysis of Past Due Loans	'
	The following table presents an aging analysis of past due loans as of September 30, 2013:
		31-59 Days			60-89 Days				90 Days or Greater Past Due				Total			Current			Total			Nonaccrual
		Past Due			Past Due								Past Due						Loans			Loans
		(In Thousands)
	Residential real estate	$	2,673		$	77			$	740			$	3,490		$	110,552		$	114,042		$	2,152
	Residential construction	—			—				—				—			5,192			5,192			—
	Commercial real estate	3,093			200				—				3,293			183,243			186,536			3,364
	Commercial construction	—			—				—				—			34,154			34,154			—
	Commercial and industrial	293			90				959				1,342			88,812			90,154			1,417
	Consumer	13			12				3				28			2,391			2,419			23
	Home equity	117			15				172				304			32,038			32,342			231
	Total	$	6,189		$	394			$	1,874			$	8,457		$	456,382		$	464,839		$	7,187
	The following table presents an aging analysis of past due loans as of December 31, 2012:
		31-59 Days			60-89 Days				90 Days or Greater Past Due				Total			Current			Total			Nonaccrual
		Past Due			Past Due								Past Due						Loans			Loans
		(In Thousands)
	Residential real estate	$	2,568		$	160			$	1,575			$	4,303		$	115,962		$	120,265		$	2,587
	Residential construction	—			—				331				331			4,003			4,334			331
	Commercial real estate	526			293				609				1,428			188,044			189,472			902
	Commercial construction	—			—				—				—			35,781			35,781			—
	Commercial and industrial	491			61				47				599			83,984			84,583			47
	Consumer	57			—				1				58			2,434			2,492			24
	Home equity	128			18				60				206			31,525			31,731			96
	Total	$	3,770		$	532			$	2,623			$	6,925		$	461,733		$	468,658		$	3,987
Summary of Accruing and Non-Accruing Troubled Debt Restructuring Loans By Class	'
	For the Three Months Ended September 30, 2012		Number of		Recorded				Recorded				Current
			Modifications		Investment				Investment				Balance
					Pre-Modification				Post-Modification
			(In Thousands)
	Residential real estate		—		$	—			$	—			$	—
	Residential construction		—		—				—				—
	Commercial real estate		1		264				204				204
	Commercial construction		—		—				—				—
	Commercial and industrial		—		—				—				—
	Consumer		—		—				—				—
	Home equity		—		—				—				—
	Total		1		$	264			$	204			$	204
	For the Nine Months Ended September 30, 2012		Number of		Recorded				Recorded				Current
			Modifications		Investment				Investment				Balance
					Pre-Modification				Post-Modification
			(In Thousands)
	Residential real estate		1		$	118			$	127			$	126
	Residential construction		—		—				—				—
	Commercial real estate		2		412				449				448
	Commercial construction		—		—				—				—
	Commercial and industrial		2		212				212				207
	Consumer		1		27				27				24
	Home equity		1		38				38				37
	Total		7		$	807			$	853			$	842
	The following tables are a summary of accruing and non-accruing TDR loans modified as TDRs by segment at the dates indicated:
	For the Nine Months Ended September 30, 2013		Number of		Recorded				Recorded				Current
			Modifications		Investment				Investment				Balance
					Pre-Modification				Post-Modification
			(In Thousands)
	Residential real estate		—		$	—			$	—			$	—
	Residential construction		—		—				—				—
	Commercial real estate		1		249				249				249
	Commercial construction		—		—				—				—
	Commercial and industrial		—		—				—				—
	Consumer		—		—				—				—
	Home equity		—		—				—				—
	Total		1		$	249			$	249			$	249

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Assets Measured at Fair Value on Recurring Basis	'
	Assets that were measured at fair value as of September 30, 2013 and December 31, 2012 on a recurring basis are summarized below:
		Fair Value Measurements Using
		September 30, 2013		Readily Available		Observable		Determined
				Market Prices		Market Data		Fair Value
				(Level 1)		(Level 2)		(Level 3)
	Assets (market approach)	(Dollars In Thousands)
	Available-for-sale securities
	Equity securities by industry type:
	Financial	$	631	$	631	$	—	$	—
		Fair Value Measurements Using
		December 31, 2012		Readily Available		Observable		Determined
				Market Prices		Market Data		Fair Value
				(Level 1)		(Level 2)		(Level 3)
	Assets (market approach)	(Dollars In Thousands)
	Available-for-sale securities
	Equity securities by industry type:
	Financial	$	621	$	621	$	—	$	—
Assets Measured at Fair Value on Nonrecurring Basis	'
	Assets measured at fair value on a nonrecurring basis as of September 30, 2013 and December 31, 2012 are summarized below:
		Fair Value Measurements Using
		September 30, 2013		Readily Available		Observable		Determined
				Market Prices		Market Data		Fair Value
				(Level 1)		(Level 2)		(Level 3)
		(Dollars In Thousands)
	Assets
	Impaired loans with a valuation allowance, net	$	1,768	$	—	$	—	$	1,768
	OREO	501		—		501		—
	Loans held for sale	135		—		135		—
		Fair Value Measurements Using
		December 31, 2012		Readily Available		Observable		Determined
				Market Prices		Market Data		Fair Value
				(Level 1)		(Level 2)		(Level 3)
		(Dollars In Thousands)
	Assets
	Impaired loans with a valuation allowance, net	$	1,556	$	—	$	—	$	1,556
	OREO	572		—		572		—
	Mortgage servicing rights	147		—		147		—
Carrying Amounts and Estimated Fair Values of Instruments	'
				Fair Value Measurements Using
		Carrying Amount		Readily Available		Observable		Determined
		at September 30, 2013		Market Prices		Market Data		Fair Value
				(Level 1)		(Level 2)		(Level 3)
		(Dollars In Thousands)
	Financial assets:
	Cash and cash equivalents	$	53,591	$	53,591	$	—	$	—
	Available-for-sale securities	631		631		—		—
	Held-to-maturity securities	55,119		—		60,977		—
	FHLB stock	3,914		—		3,914		—
	Residential real estate	113,420		—		—		110,242
	Residential construction	5,117		—		—		5,077
	Commercial real estate	184,574		—		—		183,873
	Commercial construction	33,738		—		—		30,655
	Commercial and industrial	88,964		—		—		87,541
	Consumer	2,381		—		—		2,477
	Home equity	32,206		—		—		32,306
	Net loans	460,400		—		—		452,171
	Loans held for sale	135		—		135		—
	Accrued interest and dividends receivable	1,613		—		1,613		—
	Mortgage servicing rights	422		—		789		—
	Financial liabilities:
	Deposits	$	484,514	$	—	$	475,849	$	—
	Securities sold under agreements to repurchase	1,793		—		1,793		—
	Advances from FHLB	26,348		—		27,107		—
	Accrued interest payable	51		—		51		—
				Fair Value Measurements Using
		Carrying Amount		Readily Available		Observable		Determined
		at December 31, 2012		Market Prices		Market Data		Fair Value
				(Level 1)		(Level 2)		(Level 3)
		(Dollars In Thousands)
	Financial assets:
	Cash and cash equivalents	$	39,608	$	41,494	$	—	$	—
	Available-for-sale securities	621		590		—		—
	Held-to-maturity securities	59,568		—		69,834		—
	FHLB stock	4,277		—		4,277		—
	Residential real estate	119,729		—		—		115,593
	Residential construction	4,241		—		—		4,217
	Commercial real estate	187,506		—		—		185,687
	Commercial construction	35,279		—		—		35,708
	Commercial and industrial	83,484		—		—		83,670
	Consumer	2,448		—		—		2,649
	Home equity	31,607		—		—		31,832
	Net loans	464,294		—		—		459,356
	Accrued interest and dividends receivable	1,567		—		1,567		—
	Mortgage servicing rights	368		—		444		—
	Financial liabilities:
	Deposits	$	466,177	$	—	$	468,966	$	—
	Securities sold under agreements to repurchase	9,763		—		9,763		—
	Advances from FHLB	33,332		—		35,105		—
	Accrued interest payable	60		—		60		—

Other_Comprehensive_Income_Tab

Other Comprehensive Income (Tables)	9 Months Ended
	Sep. 30, 2013
Statement of Other Comprehensive Income [Abstract]	'
Changes in Balances of Each Component of Accumulated Comprehensive Income	'
	The following table illustrates changes in the balances of each component of accumulated other comprehensive income for the dates indicated:
		Three Months Ended September 30,
		2013		2012
		(Dollars in Thousands)
	Beginning balance	$	14	$	(22	)
	Current-period change	19		4
	Ending balance	$	33	$	(18	)
		Nine Months Ended September 30,
		2013		2012
		(Dollars in Thousands)
	Beginning balance	$	26	$	(3	)
	Current-period change	7		(15		)
	Ending balance	$	33	$	(18	)

Basis_of_Presentation_Addition

Basis of Presentation - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Entity incorporation date of incorporation	14-Mar-06
Percentage of owned subsidiary	99.00%

Earnings_Per_Share_Detail

Earnings Per Share (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share Disclosure [Line Items]	'	'	'	'
Net income	$573	$623	$1,883	$1,471
Weighted average number of common shares issued	7,439,368	7,439,368	7,439,368	7,439,368
Less: average number of treasury shares	-2,015,832	-1,929,399	-2,012,484	-1,848,185
Less: average number of unallocated ESOP shares	-386,848	-416,605	-386,848	-416,605
Less: average number of dilutive restricted stock awards	-1,200	-16,096	-1,301	-42,002
Adjusted weighted average number of common shares outstanding	5,035,488	5,077,268	5,038,735	5,132,576
Weighted average number of diluted shares outstanding	5,138,815	5,102,842	5,125,438	5,158,479
Basic-common stock (usd per share)	$0.11	$0.12	$0.37	$0.29
Basic-unvested share-based payment awards (usd per share)	$0.11	$0.12	$0.37	$0.29
Diluted-common stock (usd per share)	$0.11	$0.12	$0.37	$0.29
Diluted-unvested share-based payment awards (usd per share)	$0.11	$0.12	$0.37	$0.29
Restricted Stock Units (RSUs)	'	'	'	'
Earnings Per Share Disclosure [Line Items]	'	'	'	'
Plus: dilutive outstanding restricted stock awards and stock options	377	12,872	370	25,419
Stock Options	'	'	'	'
Earnings Per Share Disclosure [Line Items]	'	'	'	'
Plus: dilutive outstanding restricted stock awards and stock options	102,950	12,702	86,333	484

Earnings_Per_Share_Additional_

Earnings Per Share - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share [Abstract]	'	'	'	'
Stock options that were not included in the calculation of diluted earnings per share	100,000	73,000	100,000	583,198

Equity_Incentive_Plan_Addition

Equity Incentive Plan - Additional Information (Detail) (USD $)	1 Months Ended	9 Months Ended	12 Months Ended		9 Months Ended			3 Months Ended	9 Months Ended
In Thousands, except Share data, unless otherwise specified	30-May-07	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2011	Sep. 30, 2013	Sep. 30, 2012	30-May-07	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013
					Stock Options	Stock Options	Stock Options	Restricted Stock Units (RSUs)	Restricted Stock Units (RSUs)	Restricted Stock Units (RSUs)	Restricted Stock Units (RSUs)
							Maximum				Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Shares available for grant	'	'	'	'	'	'	743,936	'	'	'	297,574
Maximum exercisable term of stock options	'10 years	'	'	'	'	'	'	'	'	'	'
Stock options vesting period	'5 years	'	'	'	'	'	'	'	'	'	'
Stock options granted	'	100,000	'	'	'	'	'	'	'	'	'
Stock options granted, weighted-average grant-date fair value	'	$3.59	$3.32	'	'	'	'	'	'	'	'
Weighted average grant-date fair value of options outstanding	'	$3.81	'	'	'	'	'	'	'	'	'
Weighted average grant-date fair value of options exercisable	'	$3.90	'	'	'	'	'	'	'	'	'
Share based compensation expense	'	'	'	'	$94	$263	'	'	$4	$527	'
Share based compensation expense, tax benefit	'	'	'	'	3	51	'	'	'	'	'
Unrecognized stock- based compensation expense related to non-vest options	'	474	'	'	'	'	'	'	'	'	'
Unrecognized stock- based compensation expense recognition period (in years)	'	'	'	'	'3 years 9 months 13 days	'	'	'2 years 5 months 7 days	'	'	'
Stock awards vesting, percentage	'	20.00%	'	'	'	'	'	'	'	'	'
Weighted-average grant-date fair value of stock awards	'	$14.08	'	'	'	'	'	'	'	'	'
Stock awards, fair value	'	'	854	'	'	'	'	'	'	'	'
Stock Awards, granted	'	0	'	2,000	'	'	'	'	'	'	'
Stock Awards, grant date price	'	'	'	$14.08	'	'	'	'	'	'	'
Unrecognized stock-based compensation expense related to non-vested restricted stock awards, amount	'	'	'	'	'	'	'	$14	$14	'	'

Equity_Incentive_Plan_Weighted

Equity Incentive Plan - Weighted Average Assumptions for Options Granted (Detail)	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'	'
Expected dividend yield	1.39%	0.86%
Weighted average expected term	'6 years 6 months	'6 years 6 months
Weighted average expected volatility	24.06%	23.27%
Weighted average risk-free interest rate	1.25%	1.40%

Equity_Incentive_Plan_Summary_

Equity Incentive Plan - Summary of Options under Plan and Changes (Detail) (USD $)	9 Months Ended		12 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Number of Shares	'	'	'
Outstanding at beginning of period	595,198	'	'
Granted	100,000	'	'
Exercised	0	'	'
Forfeited or expired	0	'	'
Outstanding at end of period	695,198	'	595,198
Exercisable at end of period	534,598	517,598	'
Weighted Average Exercise price	'	'	'
Outstanding at beginning of period	$14.24	'	'
Granted	$16.55	'	'
Exercised	$0	'	'
Forfeited or expired	$0	'	'
Outstanding at end of period	$14.57	'	$14.24
Exercisable at end of period	$14.26	$14.27	'
Weighted Average Remaining Contractual Term (in years)	'	'	'
Outstanding at beginning of period	'5 years 1 month 10 days	'	'5 years 1 month 24 days
Granted	'9 years 3 months 26 days	'	'
Outstanding at end of period	'5 years 1 month 10 days	'	'5 years 1 month 24 days
Exercisable at end of period	'3 years 11 months 27 days	'4 years 10 months 13 days	'
Aggregate Intrinsic Value	'	'	'
Outstanding at beginning of period	$983	'	'
Granted	0	'	'
Exercised	0	'	'
Forfeited or expired	0	'	'
Outstanding at end of period	2,112	'	983
Exercisable at end of period	$1,790	$92	'

Equity_Incentive_Plan_Summary_1

Equity Incentive Plan - Summary of Status of Stock Awards and Changes (Detail) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2011
Number of Shares	'	'
Nonvested shares at beginning of period	1,600	'
Granted	0	2,000
Vested	400	'
Forfeited	0	'
Nonvested shares at end of period	1,200	'
Weighted Average Grant-Date Fair Value	'	'
Nonvested shares at beginning of period	$14.08	'
Granted	$0	'
Vested	$14.08	'
Forfeited	$0	'
Nonvested shares at end of period	$14.08	'

Longterm_Incentive_Plan_Additi

Long-term Incentive Plan - Additional Information (Detail) (Phantom Share Units (PSUs), 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
Phantom Share Units (PSUs)	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Stock units available for awards	150,000	'	150,000	'
Stock plan award, required period of service for full vesting	'3 years	'	'	'
Share based compensation expense	$4	$8	$11	$26

Investment_Securities_Addition

Investment Securities - Additional Information (Detail) (USD $)

3 Months Ended

12 Months Ended

3 Months Ended

9 Months Ended

12 Months Ended

1 Months Ended

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Mar. 31, 2013

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

financial_institution

U.S. Treasury securities

U.S. Treasury securities

Collateralized Mortgage Obligations

Collateralized Mortgage Obligations

Collateralized Mortgage Obligations

Collateralized Mortgage Obligations

Corporate and industrial revenue bonds

Corporate and industrial revenue bonds

Federal Home Loan Bank

Federal Home Loan Bank

Federal Home Loan Bank

Banker's Bank stock

Banker's Bank stock

Investment

Investment

Investment

FICO score of less than 650

Investment

Investment

Investment

Schedule of Trading Securities and Other Trading Assets [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Securities pledged as collateral to support securities sold under agreements to repurchase

$11,300,000

$12,600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Other than temporary impairment charge

'

37,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Held to Maturity, Gross Unrealized Gains

5,858,000

7,540,000

3,000

2,000

'

'

'

'

5,804,000

7,481,000

'

'

'

'

'

Unrealized gain/losses on securities

'

'

'

'

'

36,000

53,000

'

'

'

'

'

'

'

'

Number of securities

'

'

'

'

7

7

9

1

6

6

'

'

'

'

'

Number of issues

'

'

'

'

9

'

12

'

'

'

'

'

'

'

'

Held to Maturity, aggregate book value

55,119,000

59,568,000

10,997,000

13,691,000

715,000

715,000

1,200,000

'

35,034,000

35,656,000

'

'

'

'

'

FICO scores, maximum

'

'

'

'

650

650

650

'

'

'

'

'

'

'

'

Loan-to-value ratios

'

'

'

'

'

'

65.00%

'

'

'

'

'

'

'

'

Tax rate

'

'

'

'

'

'

'

'

41.00%

41.00%

'

'

'

'

'

Number of financial institutions

450

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrealized gain/losses on securities

'

'

'

'

'

'

'

'

5,800,000

7,500,000

'

'

'

'

'

Federal Home Loan Bank stock, at cost

3,914,000

4,277,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Investment in FHLB stock, shares

39,141

42,765

'

'

'

'

'

'

'

'

'

'

'

'

'

Minimum required shares redeemable period following termination of FHLB membership

'5 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Dividends income received from FHLB stock investment

12,000

22,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Repurchase of excess capital, amount

'

'

'

'

'

'

'

'

'

'

362,000

'

'

'

'

Repurchase of excess capital, shares

'

'

'

'

'

'

'

'

'

'

3,624

'

'

'

'

Investments in Banker's Bank

$4,097,000

$4,460,000

'

'

'

'

'

'

'

'

'

$3,914,000

$4,277,000

$183,000

$183,000

Investment_Securities_Informat

Investment Securities - Information Regarding Amortized Cost and Fair Values with Gross Unrealized Gains and Losses of Investment Securities (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Available for Sale, Amortized Cost	$581	$581
Available for Sale, Gross Unrealized Gains	55	40
Available for Sale, Gross Unrealized Losses	-5	0
Available for Sale, Fair Value	631	621
Held to Maturity, aggregate book value	55,119	59,568
Held to Maturity, Gross Unrealized Gains	5,858	7,540
Held to Maturity, Gross Unrealized Losses	0	0
Held to maturity securities, fair value	60,977	67,108
Non-marketable securities, Amortized Cost	4,097	4,460
Non-marketable securities, Gross Unrealized Gains	0	0
Non-marketable securities, Gross Unrealized Losses	0	0
Non-marketable securities, Fair Value	4,097	4,460
Marketable equity securities	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Available for Sale, Amortized Cost	581	581
Available for Sale, Gross Unrealized Gains	55	40
Available for Sale, Gross Unrealized Losses	-5	0
Available for Sale, Fair Value	631	621
U.S. Treasury securities	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Held to Maturity, aggregate book value	10,997	13,691
Held to Maturity, Gross Unrealized Gains	3	2
Held to Maturity, Gross Unrealized Losses	0	0
Held to maturity securities, fair value	11,000	13,693
Corporate and industrial revenue bonds	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Held to Maturity, aggregate book value	35,034	35,656
Held to Maturity, Gross Unrealized Gains	5,804	7,481
Held to Maturity, Gross Unrealized Losses	0	0
Held to maturity securities, fair value	40,838	43,137
Certificates of deposit	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Held to Maturity, aggregate book value	8,373	9,041
Held to Maturity, Gross Unrealized Gains	15	4
Held to Maturity, Gross Unrealized Losses	0	0
Held to maturity securities, fair value	8,388	9,045
Collateralized mortgage obligations	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Held to Maturity, aggregate book value	715	1,180
Held to Maturity, Gross Unrealized Gains	36	53
Held to Maturity, Gross Unrealized Losses	0	0
Held to maturity securities, fair value	751	1,233
Federal Home Loan Bank	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Non-marketable securities, Amortized Cost	3,914	4,277
Non-marketable securities, Gross Unrealized Gains	0	0
Non-marketable securities, Gross Unrealized Losses	0	0
Non-marketable securities, Fair Value	3,914	4,277
Banker's Bank stock	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Non-marketable securities, Amortized Cost	183	183
Non-marketable securities, Gross Unrealized Gains	0	0
Non-marketable securities, Gross Unrealized Losses	0	0
Non-marketable securities, Fair Value	$183	$183

Investment_Securities_Amortize

Investment Securities - Amortized Cost and Estimated Fair Value of Debt Securities by Contractual Maturity (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Investments, Debt and Equity Securities [Abstract]	'	'
Within 1 year, amortized cost	$19,370	'
From 1 to 5 years, amortized cost	440	'
From 5 to 10 years, amortized cost	8,339	'
Over 10 years, amortized cost	26,970	'
Held-to-maturity securities, amortized cost	55,119	59,568
Within 1 year, fair value	19,388	'
From 1 to 5 years, fair value	462	'
From 5 to 10 years, fair value	9,401	'
Over 10 years, fair value	31,726	'
Held to maturity securities, fair value	$60,977	$67,108

Investment_Securities_Schedule

Investment Securities - Schedule of Continuous Unrealized Losses (Detail) (USD $)	Sep. 30, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'
Investments fair value, less than twelve months	$212
Investments gross unrealized losses, less than twelve months	-5
Investments fair value, twelve months and over	0
Investments gross unrealized losses, twelve months and over	0
Investments fair value, total	212
Investments gross unrealized losses, total	-5
Marketable equity securities	'
Schedule of Available-for-sale Securities [Line Items]	'
Investments fair value, less than twelve months	212
Investments gross unrealized losses, less than twelve months	-5
Investments fair value, twelve months and over	0
Investments gross unrealized losses, twelve months and over	0
Investments fair value, total	212
Investments gross unrealized losses, total	($5)

Loans_and_Allowance_for_Loan_L2

Loans and Allowance for Loan Losses - 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
	Loan	Loan	Loan	Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'
Amount of servicing loans for participating lenders	$20,600,000	'	$20,600,000	'	$19,300,000
Unpaid principal balance of mortgages serviced for others	98,000,000	'	98,000,000	'	87,100,000
Number of Modifications	1	1	1	7	'
Recorded Investment Pre-Modification	'	264,000	249,000	807,000	'
Recorded Investment Post-Modification	249,000	204,000	249,000	853,000	'
Trouble debt restructuring, reserve	12,000	125,000	12,000	125,000	'
Trouble debt restructuring, interest income	3,000	8,000	11,000	18,000	'
Number of days past due to be considered delinquent	'	'	'30 days	'	'
Pass | Minimum	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'
Credit agency ratings	1	'	1	'	'
Pass | Maximum	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'
Credit agency ratings	5	'	5	'	'
Nonperforming (nonaccrual)	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'
Number of restructured loans	'	6	'	6	'
Recorded Investment Post-Modification	'	740,000	'	740,000	'
Commercial and industrial loans	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'
Number of days to determine default	'	'	'90 days	'	'
Commercial and industrial loans | Minimum	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'
Credit agency ratings	1	'	1	'	'
Commercial and industrial loans | Maximum	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'
Credit agency ratings	9	'	9	'	'
Consumer loans	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'
Number of days loans should be past due to be considered nonperforming	'	'	'90 days	'	'
Number of Modifications	'	0	0	1	'
Recorded Investment Pre-Modification	'	0	0	27,000	'
Recorded Investment Post-Modification	'	0	0	27,000	'
Home Equity	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'
Number of days loans should be past due to be considered nonperforming	'	'	'90 days	'	'
Number of Modifications	'	0	0	1	'
Recorded Investment Pre-Modification	'	0	0	38,000	'
Recorded Investment Post-Modification	'	0	0	38,000	'
Commercial real estate	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'
Number of Modifications	'	1	1	2	'
Recorded Investment Pre-Modification	'	264,000	249,000	412,000	'
Recorded Investment Post-Modification	'	$204,000	$249,000	$449,000	'

Loans_and_Allowance_for_Loan_L3

Loans and Allowance for Loan Losses - Composition of Loan Portfolio (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
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'	'		'	'	'
Loan portfolio, Amount	$464,839		'	$468,658		'	'	'
Deferred loan origination costs, net	909		'	917		'	'	'
Loan portfolio, Percent of Total	100.00%		'	100.00%		'	'	'
Allowance for loan losses	-4,439		-4,336	-4,364		-4,401	-4,482	-4,576
Loans, net	461,309		'	465,211		'	'	'
Loans held for sale	135		'	0		'	'	'
Real estate loans	'		'	'		'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'	'		'	'	'
Loan portfolio, Amount	372,266		'	381,583		'	'	'
Loan portfolio, Percent of Total	80.00%		'	81.40%		'	'	'
Real estate loans | Mortgage Loan	'		'	'		'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'	'		'	'	'
Loan portfolio, Amount	332,920		'	341,468		'	'	'
Loan portfolio, Percent of Total	71.60%		'	72.90%		'	'	'
Real estate loans | Residential real estate	'		'	'		'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'	'		'	'	'
Loan portfolio, Amount	114,042	[1]	'	120,265	[1]	'	'	'
Loan portfolio, Percent of Total	24.50%	[1]	'	25.70%	[1]	'	'	'
Real estate loans | Home Equity	'		'	'		'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'	'		'	'	'
Loan portfolio, Amount	32,342		'	31,731		'	'	'
Loan portfolio, Percent of Total	7.00%		'	6.80%		'	'	'
Real estate loans | Commercial real estate	'		'	'		'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'	'		'	'	'
Loan portfolio, Amount	186,536		'	189,472		'	'	'
Loan portfolio, Percent of Total	40.10%		'	40.40%		'	'	'
Real estate loans | Total construction	'		'	'		'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'	'		'	'	'
Loan portfolio, Amount	39,346		'	40,115		'	'	'
Loan portfolio, Percent of Total	8.40%		'	8.50%		'	'	'
Real estate loans | Residential construction	'		'	'		'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'	'		'	'	'
Loan portfolio, Amount	5,192		'	4,334		'	'	'
Loan portfolio, Percent of Total	1.10%		'	0.90%		'	'	'
Real estate loans | Commercial construction	'		'	'		'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'	'		'	'	'
Loan portfolio, Amount	34,154		'	35,781		'	'	'
Loan portfolio, Percent of Total	7.30%		'	7.60%		'	'	'
Consumer loans	'		'	'		'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'	'		'	'	'
Loan portfolio, Amount	2,419		'	2,492		'	'	'
Loan portfolio, Percent of Total	0.60%		'	0.60%		'	'	'
Allowance for loan losses	-38		-38	-44		-46	-46	-47
Commercial and industrial loans	'		'	'		'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'	'		'	'	'
Loan portfolio, Amount	90,154		'	84,583		'	'	'
Loan portfolio, Percent of Total	19.40%		'	18.00%		'	'	'
Allowance for loan losses	($1,190)		($1,251)	($1,099)		($1,229)	($1,352)	($1,343)
[1]	Excludes loans held for sale of $135,000 at September 30, 2013. There were no loans held for sale at December 31, 2012.

Loans_and_Allowance_for_Loan_L4

Loans and Allowance for Loan Losses - Analysis of Total Loans Segregated by Risk Rating and Segment (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	$464,839	$468,658
Commercial and industrial loans	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	90,154	84,583
Commercial and industrial loans | Pass	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	82,533	75,656
Commercial and industrial loans | Special Mention	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	4,977	8,006
Commercial and industrial loans | Substandard	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	2,644	874
Commercial and industrial loans | Doubtful	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	0	47
Commercial construction	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	34,154	35,781
Commercial construction | Pass	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	24,825	23,214
Commercial construction | Special Mention	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	5,507	8,164
Commercial construction | Substandard	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	3,822	4,403
Commercial real estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	186,536	189,472
Commercial real estate | Pass	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	172,657	178,337
Commercial real estate | Special Mention	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	6,878	7,529
Commercial real estate | Substandard	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	7,001	3,606
Total commercial loans	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	310,844	309,836
Total commercial loans | Pass	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	280,015	277,207
Total commercial loans | Special Mention	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	17,362	23,699
Total commercial loans | Substandard	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	13,467	8,883
Total commercial loans | Doubtful	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	0	47
Residential real estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	114,042	120,265
Residential real estate | Performing	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	111,645	117,612
Residential real estate | Substandard (accruing)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	245	66
Residential real estate | Substandard (nonaccrual)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	2,152	2,587
Residential construction	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	5,192	4,334
Residential construction | Performing	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	5,192	4,003
Residential construction | Substandard (nonaccrual)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	'	331
Total residential loans	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	119,234	124,599
Total residential loans | Performing	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	116,837	121,615
Total residential loans | Substandard (accruing)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	245	66
Total residential loans | Substandard (nonaccrual)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	2,152	2,918
Consumer loans	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	2,419	2,492
Consumer loans | Performing	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	2,396	2,468
Consumer loans | Substandard (accruing)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	0	'
Consumer loans | Nonperforming (nonaccrual)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	23	24
Home Equity	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	32,342	31,731
Home Equity | Performing	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	32,061	31,635
Home Equity | Substandard (accruing)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	50	'
Home Equity | Nonperforming (nonaccrual)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	231	96
Total consumer loans	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	34,761	34,223
Total consumer loans | Performing	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	34,457	34,103
Total consumer loans | Substandard (accruing)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	50	'
Total consumer loans | Nonperforming (nonaccrual)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loan portfolio, Amount	$254	$120

Loans_and_Allowance_for_Loan_L5

Loans and Allowance for Loan Losses - Allowance for Loan Losses and Select Loan Information (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	Sep. 30, 2012	Dec. 31, 2012
Allowance for loan losses	'	'	'	'	'
Allowance for loan losses at beginning of the year	$4,336	$4,482	$4,364	$4,576	$4,576
Provision for (reduction of) loan losses	212	169	270	240	442
Recoveries	6	5	60	16	24
Loans charged off	-115	-255	-255	-431	-678
Allowance for loan losses at end of year	4,439	4,401	4,439	4,401	4,364
Collectively evaluated for impairment	4,034	4,106	4,034	4,106	4,103
Individually evaluated for impairment	405	295	405	295	261
Allowance for loan losses ending balance	4,439	4,401	4,439	4,401	4,364
Collectively evaluated for impairment	450,631	460,344	450,631	460,344	457,329
Individually evaluated for impairment	14,208	11,596	14,208	11,596	11,329
Total loans ending balance	464,839	471,940	464,839	471,940	468,658
Residential real estate	'	'	'	'	'
Allowance for loan losses	'	'	'	'	'
Allowance for loan losses at beginning of the year	561	369	536	549	549
Provision for (reduction of) loan losses	113	54	198	-47	84
Recoveries	'	'	1	1	1
Loans charged off	-52	'	-113	-80	-98
Allowance for loan losses at end of year	622	423	622	423	536
Collectively evaluated for impairment	391	325	391	325	353
Individually evaluated for impairment	231	98	231	98	183
Allowance for loan losses ending balance	622	423	622	423	536
Collectively evaluated for impairment	111,645	120,340	111,645	120,340	117,611
Individually evaluated for impairment	2,397	1,684	2,397	1,684	2,654
Total loans ending balance	114,042	122,024	114,042	122,024	120,265
Residential construction	'	'	'	'	'
Allowance for loan losses	'	'	'	'	'
Allowance for loan losses at beginning of the year	52	94	93	89	89
Provision for (reduction of) loan losses	23	3	44	8	4
Loans charged off	'	'	-62	'	'
Allowance for loan losses at end of year	75	97	75	97	93
Collectively evaluated for impairment	75	82	75	82	62
Individually evaluated for impairment	'	15	'	15	31
Allowance for loan losses ending balance	75	97	75	97	93
Collectively evaluated for impairment	5,192	5,199	5,192	5,199	4,003
Individually evaluated for impairment	'	331	'	331	331
Total loans ending balance	5,192	5,530	5,192	5,530	4,334
Commercial real estate	'	'	'	'	'
Allowance for loan losses	'	'	'	'	'
Allowance for loan losses at beginning of the year	1,921	1,852	1,966	1,891	1,891
Provision for (reduction of) loan losses	39	134	-15	95	140
Recoveries	2	'	11	'	'
Loans charged off	'	-65	'	65	-65
Allowance for loan losses at end of year	1,962	1,921	1,962	1,921	1,966
Collectively evaluated for impairment	1,858	1,874	1,858	1,874	1,919
Individually evaluated for impairment	104	47	104	47	47
Allowance for loan losses ending balance	1,962	1,921	1,962	1,921	1,966
Collectively evaluated for impairment	180,396	181,954	180,396	181,954	186,293
Individually evaluated for impairment	6,140	3,701	6,140	3,701	3,179
Total loans ending balance	186,536	185,655	186,536	185,655	189,472
Commercial construction	'	'	'	'	'
Allowance for loan losses	'	'	'	'	'
Allowance for loan losses at beginning of the year	373	589	502	526	526
Provision for (reduction of) loan losses	43	-39	-86	24	-24
Allowance for loan losses at end of year	416	550	416	550	502
Collectively evaluated for impairment	416	550	416	550	502
Allowance for loan losses ending balance	416	550	416	550	502
Collectively evaluated for impairment	30,331	34,369	30,331	34,369	31,378
Individually evaluated for impairment	3,823	4,490	3,823	4,490	4,403
Total loans ending balance	34,154	38,859	34,154	38,859	35,781
Commercial and industrial loans	'	'	'	'	'
Allowance for loan losses	'	'	'	'	'
Allowance for loan losses at beginning of the year	1,251	1,352	1,099	1,343	1,343
Provision for (reduction of) loan losses	-15	52	101	109	158
Recoveries	1	2	37	2	4
Loans charged off	-47	-177	-47	-225	-406
Allowance for loan losses at end of year	1,190	1,229	1,190	1,229	1,099
Collectively evaluated for impairment	1,134	1,107	1,134	1,107	1,099
Individually evaluated for impairment	56	122	56	122	'
Allowance for loan losses ending balance	1,190	1,229	1,190	1,229	1,099
Collectively evaluated for impairment	88,587	84,514	88,587	84,514	83,917
Individually evaluated for impairment	1,567	1,167	1,567	1,167	666
Total loans ending balance	90,154	85,681	90,154	85,681	84,583
Consumer loans	'	'	'	'	'
Allowance for loan losses	'	'	'	'	'
Allowance for loan losses at beginning of the year	38	46	44	47	47
Provision for (reduction of) loan losses	13	10	16	47	52
Recoveries	3	3	11	13	19
Loans charged off	-16	-13	-33	-61	-74
Allowance for loan losses at end of year	38	46	38	46	44
Collectively evaluated for impairment	38	46	38	46	44
Allowance for loan losses ending balance	38	46	38	46	44
Collectively evaluated for impairment	2,419	2,598	2,419	2,598	2,492
Total loans ending balance	2,419	2,598	2,419	2,598	2,492
Home Equity	'	'	'	'	'
Allowance for loan losses	'	'	'	'	'
Allowance for loan losses at beginning of the year	140	180	124	131	131
Provision for (reduction of) loan losses	-4	-45	12	4	28
Loans charged off	'	'	'	'	-35
Allowance for loan losses at end of year	136	135	136	135	124
Collectively evaluated for impairment	122	122	122	122	124
Individually evaluated for impairment	14	13	14	13	'
Allowance for loan losses ending balance	136	135	136	135	124
Collectively evaluated for impairment	32,061	31,370	32,061	31,370	31,635
Individually evaluated for impairment	281	223	281	223	96
Total loans ending balance	$32,342	$31,593	$32,342	$31,593	$31,731

Loans_and_Allowance_for_Loan_L6

Loans and Allowance for Loan Losses - Information Pertaining to Impaired Loans by Class (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	Sep. 30, 2012	Dec. 31, 2012
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
Impaired loans without a valuation allowance, Recorded Investment	$12,035	$9,955	$12,035	$9,955	$9,512
Impaired loans without a valuation allowance, Unpaid Balance	12,619	10,355	12,619	10,355	10,127
Impaired loans without a valuation allowance, Average Recorded Investment	10,386	9,882	10,168	7,959	8,269
Impaired loans without a valuation allowance, Interest Income Recognized	145	115	390	323	355
Impaired loans with a valuation allowance, Recorded Investment	2,173	1,641	2,173	1,641	1,817
Impaired loans with a valuation allowance, Unpaid Balance	2,238	1,641	2,238	1,641	1,817
Impaired loans with a valuation allowance, Average Recorded Investment	1,899	1,936	1,878	2,182	2,109
Impaired loans with a valuation allowance, Related Allowance	405	295	405	295	261
Impaired loans with a valuation allowance, Interest Income Recognized	24	11	44	34	68
Total impaired loans, Recorded Investment	14,208	11,596	14,208	11,596	11,329
Total impaired loans, Unpaid Balance	14,857	11,996	14,857	11,996	11,944
Total impaired loans, Average Recorded Investment	12,285	11,818	12,046	10,141	10,378
Total impaired loans, Related Allowance	405	295	405	295	261
Total impaired loans, Interest Income Recognized	169	126	434	357	423
Residential real estate	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
Impaired loans without a valuation allowance, Recorded Investment	1,259	1,050	1,259	1,050	1,512
Impaired loans without a valuation allowance, Unpaid Balance	1,259	1,050	1,259	1,050	1,512
Impaired loans without a valuation allowance, Average Recorded Investment	1,409	967	1,434	1,157	1,228
Impaired loans without a valuation allowance, Interest Income Recognized	19	11	39	29	53
Impaired loans with a valuation allowance, Recorded Investment	1,138	634	1,138	634	1,142
Impaired loans with a valuation allowance, Unpaid Balance	1,138	634	1,138	634	1,142
Impaired loans with a valuation allowance, Average Recorded Investment	1,006	502	1,040	617	722
Impaired loans with a valuation allowance, Related Allowance	231	98	231	98	183
Impaired loans with a valuation allowance, Interest Income Recognized	11	6	21	16	48
Total impaired loans, Recorded Investment	2,397	1,684	2,397	1,684	2,654
Total impaired loans, Unpaid Balance	2,397	1,684	2,397	1,684	2,654
Total impaired loans, Average Recorded Investment	2,415	1,469	2,474	1,774	1,950
Total impaired loans, Related Allowance	231	98	231	98	183
Total impaired loans, Interest Income Recognized	30	17	60	45	101
Residential construction	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
Impaired loans with a valuation allowance, Recorded Investment	'	331	'	331	331
Impaired loans with a valuation allowance, Unpaid Balance	'	331	'	331	331
Impaired loans with a valuation allowance, Average Recorded Investment	110	331	165	248	265
Impaired loans with a valuation allowance, Related Allowance	'	15	'	15	31
Total impaired loans, Recorded Investment	'	331	'	331	331
Total impaired loans, Unpaid Balance	'	331	'	331	331
Total impaired loans, Average Recorded Investment	110	331	165	248	265
Total impaired loans, Related Allowance	'	15	'	15	31
Commercial real estate	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
Impaired loans without a valuation allowance, Recorded Investment	5,601	3,356	5,601	3,356	2,835
Impaired loans without a valuation allowance, Unpaid Balance	5,915	3,756	5,915	3,756	3,225
Impaired loans without a valuation allowance, Average Recorded Investment	3,897	3,402	3,632	3,555	3,410
Impaired loans without a valuation allowance, Interest Income Recognized	64	41	172	146	141
Impaired loans with a valuation allowance, Recorded Investment	539	345	539	345	344
Impaired loans with a valuation allowance, Unpaid Balance	604	345	604	345	344
Impaired loans with a valuation allowance, Average Recorded Investment	475	470	442	441	422
Impaired loans with a valuation allowance, Related Allowance	104	47	104	47	47
Impaired loans with a valuation allowance, Interest Income Recognized	11	5	20	17	20
Total impaired loans, Recorded Investment	6,140	3,701	6,140	3,701	3,179
Total impaired loans, Unpaid Balance	6,519	4,101	6,519	4,101	3,569
Total impaired loans, Average Recorded Investment	4,372	3,872	4,074	3,996	3,832
Total impaired loans, Related Allowance	104	47	104	47	47
Total impaired loans, Interest Income Recognized	75	46	192	163	161
Commercial construction	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
Impaired loans without a valuation allowance, Recorded Investment	3,823	4,490	3,823	4,490	4,403
Impaired loans without a valuation allowance, Unpaid Balance	3,823	4,490	3,823	4,490	4,403
Impaired loans without a valuation allowance, Average Recorded Investment	4,016	4,419	4,113	2,263	2,691
Impaired loans without a valuation allowance, Interest Income Recognized	46	53	147	114	131
Impaired loans with a valuation allowance, Average Recorded Investment	'	'	'	54	43
Total impaired loans, Recorded Investment	3,823	4,490	3,823	4,490	4,403
Total impaired loans, Unpaid Balance	3,823	4,490	3,823	4,490	4,403
Total impaired loans, Average Recorded Investment	4,016	4,419	4,113	2,317	2,734
Total impaired loans, Interest Income Recognized	46	53	147	114	131
Commercial and industrial loans	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
Impaired loans without a valuation allowance, Recorded Investment	1,234	871	1,234	871	666
Impaired loans without a valuation allowance, Unpaid Balance	1,504	871	1,504	871	891
Impaired loans without a valuation allowance, Average Recorded Investment	922	889	858	737	723
Impaired loans without a valuation allowance, Interest Income Recognized	14	9	28	31	25
Impaired loans with a valuation allowance, Recorded Investment	333	296	333	296	'
Impaired loans with a valuation allowance, Unpaid Balance	333	296	333	296	'
Impaired loans with a valuation allowance, Average Recorded Investment	183	582	137	779	623
Impaired loans with a valuation allowance, Related Allowance	56	122	56	122	'
Impaired loans with a valuation allowance, Interest Income Recognized	2	'	2	1	'
Total impaired loans, Recorded Investment	1,567	1,167	1,567	1,167	666
Total impaired loans, Unpaid Balance	1,837	1,167	1,837	1,167	891
Total impaired loans, Average Recorded Investment	1,105	1,471	995	1,516	1,346
Total impaired loans, Related Allowance	56	122	56	122	'
Total impaired loans, Interest Income Recognized	16	9	30	32	25
Home Equity	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
Impaired loans without a valuation allowance, Recorded Investment	118	188	118	188	96
Impaired loans without a valuation allowance, Unpaid Balance	118	188	118	188	96
Impaired loans without a valuation allowance, Average Recorded Investment	142	205	131	247	217
Impaired loans without a valuation allowance, Interest Income Recognized	2	1	4	3	5
Impaired loans with a valuation allowance, Recorded Investment	163	35	163	35	'
Impaired loans with a valuation allowance, Unpaid Balance	163	35	163	35	'
Impaired loans with a valuation allowance, Average Recorded Investment	125	51	94	43	34
Impaired loans with a valuation allowance, Related Allowance	14	13	14	13	'
Impaired loans with a valuation allowance, Interest Income Recognized	'	'	1	'	'
Total impaired loans, Recorded Investment	281	223	281	223	96
Total impaired loans, Unpaid Balance	281	223	281	223	96
Total impaired loans, Average Recorded Investment	267	256	225	290	251
Total impaired loans, Related Allowance	14	13	14	13	'
Total impaired loans, Interest Income Recognized	$2	$1	$5	$3	$5

Loans_and_Allowance_for_Loan_L7

Loans and Allowance for Loan Losses - Aging Analysis of Past Due Loans (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
31-59 Days Past Due	$6,189	$3,770
60-89 Days Past Due	394	532
90 Days and Over Past Due	1,874	2,623
Total Past Due	8,457	6,925
Current	456,382	461,733
Total Loans	464,839	468,658
Nonaccrual Loans	7,187	3,987
Residential real estate	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
31-59 Days Past Due	2,673	2,568
60-89 Days Past Due	77	160
90 Days and Over Past Due	740	1,575
Total Past Due	3,490	4,303
Current	110,552	115,962
Total Loans	114,042	120,265
Nonaccrual Loans	2,152	2,587
Residential construction	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
90 Days and Over Past Due	'	331
Total Past Due	'	331
Current	5,192	4,003
Total Loans	5,192	4,334
Nonaccrual Loans	'	331
Commercial real estate	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
31-59 Days Past Due	3,093	526
60-89 Days Past Due	200	293
90 Days and Over Past Due	'	609
Total Past Due	3,293	1,428
Current	183,243	188,044
Total Loans	186,536	189,472
Nonaccrual Loans	3,364	902
Commercial construction	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Current	34,154	35,781
Total Loans	34,154	35,781
Commercial and industrial loans	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
31-59 Days Past Due	293	491
60-89 Days Past Due	90	61
90 Days and Over Past Due	959	47
Total Past Due	1,342	599
Current	88,812	83,984
Total Loans	90,154	84,583
Nonaccrual Loans	1,417	47
Consumer loans	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
31-59 Days Past Due	13	57
60-89 Days Past Due	12	'
90 Days and Over Past Due	3	1
Total Past Due	28	58
Current	2,391	2,434
Total Loans	2,419	2,492
Nonaccrual Loans	23	24
Home Equity	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
31-59 Days Past Due	117	128
60-89 Days Past Due	15	18
90 Days and Over Past Due	172	60
Total Past Due	304	206
Current	32,038	31,525
Total Loans	32,342	31,731
Nonaccrual Loans	$231	$96

Loans_and_Allowance_for_Loan_L8

Loans and Allowance for Loan Losses - Summary of Accruing and Non-Accruing TDR Loans Modified as TDRs by Segment (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
	Loan	Loan	Loan	Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'	'
Number of Modifications	1	1	1	7
Recorded Investment Pre-Modification	'	$264	$249	$807
Recorded Investment Post-Modification	249	204	249	853
Current Balance	'	204	249	842
Residential real estate	'	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'	'
Number of Modifications	'	0	0	1
Recorded Investment Pre-Modification	'	0	0	118
Recorded Investment Post-Modification	'	0	0	127
Current Balance	'	0	0	126
Residential construction	'	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'	'
Number of Modifications	'	0	0	0
Recorded Investment Pre-Modification	'	0	0	0
Recorded Investment Post-Modification	'	0	0	0
Current Balance	'	0	0	0
Commercial real estate	'	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'	'
Number of Modifications	'	1	1	2
Recorded Investment Pre-Modification	'	264	249	412
Recorded Investment Post-Modification	'	204	249	449
Current Balance	'	204	249	448
Commercial construction	'	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'	'
Number of Modifications	'	0	0	0
Recorded Investment Pre-Modification	'	0	0	0
Recorded Investment Post-Modification	'	0	0	0
Current Balance	'	0	0	0
Commercial and industrial loans	'	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'	'
Number of Modifications	'	0	0	2
Recorded Investment Pre-Modification	'	0	0	212
Recorded Investment Post-Modification	'	0	0	212
Current Balance	'	0	0	207
Consumer loans	'	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'	'
Number of Modifications	'	0	0	1
Recorded Investment Pre-Modification	'	0	0	27
Recorded Investment Post-Modification	'	0	0	27
Current Balance	'	0	0	24
Home Equity	'	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'	'
Number of Modifications	'	0	0	1
Recorded Investment Pre-Modification	'	0	0	38
Recorded Investment Post-Modification	'	0	0	38
Current Balance	'	$0	$0	$37

Fair_Value_Measurements_Additi

Fair Value Measurements - Additional Information (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
In Thousands, unless otherwise specified
Fair Value Disclosures [Abstract]	'	'	'
Individually evaluated for impairment	$405	$261	$295

Fair_Value_Measurements_Assets

Fair Value Measurements - Assets Measured at Fair Value on Recurring Basis (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total equity securities	$631	$621
Financial	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total equity securities	631	621
Readily Available Market Prices (Level 1) | Financial	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total equity securities	$631	$621

Fair_Value_Measurements_Assets1

Fair Value Measurements - Assets Measured at Fair Value on Nonrecurring Basis (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Impaired loans with a valuation allowance, net	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets measured at fair value	$1,768	$1,556
Other real estate owned	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets measured at fair value	501	572
Loans held for sale	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets measured at fair value	135	'
Mortgage servicing rights	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets measured at fair value	'	147
Observable Market Data (Level 2) | Other real estate owned	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets measured at fair value	501	572
Observable Market Data (Level 2) | Loans held for sale	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets measured at fair value	135	'
Observable Market Data (Level 2) | Mortgage servicing rights	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets measured at fair value	'	147
Determined Fair Value (Level 3) | Impaired loans with a valuation allowance, net	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets measured at fair value	$1,768	$1,556

Fair_Value_Measurements_Carryi

Fair Value Measurements - Carrying Amounts and Estimated Fair Values of Instruments (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Financial assets:	'	'	'	'
Cash and cash equivalents	$53,591	$39,608	$41,494	$61,122
Available-for-sale securities, at fair value	631	621	'	'
Securities held-to-maturity	55,119	59,568	'	'
FHLB stock	3,914	4,277	'	'
Loan portfolio, Amount	460,400	464,294	'	'
Loans held for sale	135	'	'	'
Accrued interest receivable	1,613	1,567	'	'
Mortgage servicing rights	422	368	'	'
Financial liabilities:	'	'	'	'
Deposits	484,514	466,177	'	'
Securities sold under agreements to repurchase	1,793	9,763	'	'
FHLB long term advances	26,348	33,332	'	'
Accrued interest payable	51	60	'	'
Real estate loans | Residential real estate	'	'	'	'
Financial assets:	'	'	'	'
Loan portfolio, Amount	113,420	119,729	'	'
Real estate loans | Residential construction	'	'	'	'
Financial assets:	'	'	'	'
Loan portfolio, Amount	5,117	4,241	'	'
Real estate loans | Commercial real estate	'	'	'	'
Financial assets:	'	'	'	'
Loan portfolio, Amount	184,574	187,506	'	'
Real estate loans | Commercial construction	'	'	'	'
Financial assets:	'	'	'	'
Loan portfolio, Amount	33,738	35,279	'	'
Real estate loans | Home Equity	'	'	'	'
Financial assets:	'	'	'	'
Loan portfolio, Amount	32,206	31,607	'	'
Commercial and industrial loans	'	'	'	'
Financial assets:	'	'	'	'
Loan portfolio, Amount	88,964	83,484	'	'
Consumer loans	'	'	'	'
Financial assets:	'	'	'	'
Loan portfolio, Amount	2,381	2,448	'	'
Readily Available Market Prices (Level 1)	'	'	'	'
Financial assets:	'	'	'	'
Cash and cash equivalents	53,591	41,494	'	'
Available-for-sale securities, at fair value	631	590	'	'
Observable Market Data (Level 2)	'	'	'	'
Financial assets:	'	'	'	'
Securities held-to-maturity	60,977	69,834	'	'
FHLB stock	3,914	4,277	'	'
Loans held for sale	135	'	'	'
Accrued interest receivable	1,613	1,567	'	'
Mortgage servicing rights	789	444	'	'
Financial liabilities:	'	'	'	'
Deposits	475,849	468,966	'	'
Securities sold under agreements to repurchase	1,793	9,763	'	'
FHLB long term advances	27,107	35,105	'	'
Accrued interest payable	51	60	'	'
Determined Fair Value (Level 3)	'	'	'	'
Financial assets:	'	'	'	'
Loan portfolio, Amount	452,171	459,356	'	'
Determined Fair Value (Level 3) | Real estate loans | Residential real estate	'	'	'	'
Financial assets:	'	'	'	'
Loan portfolio, Amount	110,242	115,593	'	'
Determined Fair Value (Level 3) | Real estate loans | Residential construction	'	'	'	'
Financial assets:	'	'	'	'
Loan portfolio, Amount	5,077	4,217	'	'
Determined Fair Value (Level 3) | Real estate loans | Commercial real estate	'	'	'	'
Financial assets:	'	'	'	'
Loan portfolio, Amount	183,873	185,687	'	'
Determined Fair Value (Level 3) | Real estate loans | Commercial construction	'	'	'	'
Financial assets:	'	'	'	'
Loan portfolio, Amount	30,655	35,708	'	'
Determined Fair Value (Level 3) | Real estate loans | Home Equity	'	'	'	'
Financial assets:	'	'	'	'
Loan portfolio, Amount	32,306	31,832	'	'
Determined Fair Value (Level 3) | Commercial and industrial loans	'	'	'	'
Financial assets:	'	'	'	'
Loan portfolio, Amount	87,541	83,670	'	'
Determined Fair Value (Level 3) | Consumer loans	'	'	'	'
Financial assets:	'	'	'	'
Loan portfolio, Amount	$2,477	$2,649	'	'

Other_Comprehensive_Income_Det

Other Comprehensive Income (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
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'
Beginning balance	$14	($22)	$26	($3)
Current-period change	19	4	7	-15
Ending balance	$33	($18)	$33	($18)

Common_Stock_Additional_Inform

Common Stock - Additional Information (Detail) (USD $)	3 Months Ended	9 Months Ended		1 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2012	Jun. 30, 2012	Jun. 29, 2012
				Seventh Stock Repurchase Program	Seventh Stock Repurchase Program
Class of Stock [Line Items]	'	'	'	'	'
Number of shares authorized to be repurchased	235,646	235,646	'	'	272,000
Number of shares authorized to be repurchased, percentage	'	'	'	5.00%	'
Treasury stock purchased, shares	13,700	13,700	273,273	'	'
Treasury stock purchased, average price per share (usd per share)	'	$17.60	'	'	'

Subsequent_Events_Additional_I

Subsequent Events - Additional Information (Detail) (USD $)	9 Months Ended	0 Months Ended
	Sep. 30, 2013	Oct. 25, 2013
		Dividend Declared
Subsequent Event [Line Items]	'	'
Cash dividends declared, usd per share	$0.15	$0.05
Cash dividends, date of record	'	8-Nov-13
Cash dividends, payable date	'	20-Nov-13