Consolidated Statements of Changes in Shareholders' Equity (unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2010	$ 39,869	$ 33,807	$ (406)	$ 73,270
Balance (in shares) at Dec. 31, 2010	13,003,849
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net changes in unrealized gain (loss) on available for sale securities, net of income tax expense (benefits)			(441)	(441)
Net changes in unrecognized past service Costs of employee benefit plans, net income tax expense (benefits)			4	4
Common stock dividends	1,246	(1,246)		0
Common stock dividends (in shares)	393,998
Stock-based compensation expense	14			14
Net Income (loss)		(7,453)		(7,453)
Balance at Sep. 30, 2011	41,129	25,108	(843)	65,394
Balance (in shares) at Sep. 30, 2011	13,397,847
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net changes in unrealized gain (loss) on available for sale securities, net of income tax expense (benefits)			213	213
Net changes in unrecognized past service Costs of employee benefit plans, net income tax expense (benefits)			(79)	(79)
Common stock dividends	302	(302)
Common stock dividends (in shares)	133,985
Stock-based compensation expense	4			4
Net Income (loss)		(3,359)		(3,359)
Balance at Dec. 31, 2011	41,435	21,447	(709)	62,173
Balance (in shares) at Dec. 31, 2011	13,531,832			13,531,832
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net changes in unrealized gain (loss) on available for sale securities, net of income tax expense (benefits)			897	897
Common stock dividends	984	(984)
Common stock dividends (in shares)	409,985
Stock-based compensation expense	13			13
Net Income (loss)		4,591		4,591
Balance at Sep. 30, 2012	$ 42,432	$ 25,054	$ 188	$ 67,674
Balance (in shares) at Sep. 30, 2012	13,941,817			13,941,817