Consolidated Statements Of Changes In Shareholders' Equity (USD $) In Thousands, except Share data	Preferred Stock [Member]	Common Stock [Member]	Common Stock Warrant [Member]	Capital Surplus [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Comprehensive Income (Loss) [Member]	Total
BALANCE at Dec. 31, 2008		$ 9,956		$ 25,707	$ 31,026	$ 1,254		$ 67,943
BALANCE, shares at Dec. 31, 2008		2,844,489
Unrealized gain (loss), net of income tax benefit (expense)						(205)	(205)	(205)
Net income (loss)					1,502		1,502	1,502
Total comprehensive income (loss)							1,297
Issuance of preferred stock in connection with Capital Purchase Program, net of discount on preferred stock	17,067							17,067
Issuance of common stock warrant in connection with Capital Purchase Program			882					882
Cost associated with issuance of preferred stock and common warrant	(95)		(4)					(99)
Stock based compensation				61				61
Stock options exercised		7		16				23
Stock options exercised, shares		1,892
Issuance of restricted stock		5		19				24
Issuance of restricted stock, shares		1,500
Preferred stock accretion	150				(150)			(150)
Cash dividends on preferred stock					(745)			(745)
Cash dividends					(2,078)			(2,078)
BALANCE at Dec. 31, 2009	17,122	9,968	878	25,803	29,555	1,049		84,375
BALANCE, shares at Dec. 31, 2009		2,847,881
Unrealized gain (loss), net of income tax benefit (expense)						(2,701)	(2,701)	(2,701)
Net income (loss)					860		860	860
Total comprehensive income (loss)							(1,841)
Stock based compensation				36				36
Stock options exercised		6		13				19
Stock options exercised, shares		1,960
Preferred stock accretion	166				(166)			(166)
Cash dividends on preferred stock					(897)			(897)
Cash dividends					(798)			(798)
BALANCE at Dec. 31, 2010	17,288	9,974	878	25,852	28,554	(1,652)		80,894
BALANCE, shares at Dec. 31, 2010		2,849,841
Unrealized gain (loss), net of income tax benefit (expense)						2,103	2,103	2,103
Post-retirement health insurance benefit adjustment, net of income tax benefit of $42						(113)	(113)	(113)
Net income (loss)					(1,024)		(1,024)	(1,024)
Total comprehensive income (loss)							966
Stock based compensation				21				21
Preferred stock accretion	166				(166)			(166)
Cash dividends on preferred stock					(897)			(897)
Cash dividends					(541)			(541)
BALANCE at Dec. 31, 2011	$ 17,454	$ 9,974	$ 878	$ 25,873	$ 25,926	$ 338		$ 80,443
BALANCE, shares at Dec. 31, 2011		2,849,841