Consolidated Statements of Shareholders' Equity (USD $) In Thousands, except Share data	Preferred Stock	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total
Beginning balance at Dec. 31, 2011	$ 63,500	$ 104,841	$ 185,491	$ (8,682)	$ 345,150
Beginning balance, shares at Dec. 31, 2011		16,910
Net income (loss)			(5,182)		(5,182)
Common stock issued into dividend reinvestment plan		209			209
Common stock issued into dividend reinvestment plan, shares		18
Repurchases of common stock		(2)			(2)
Repurchases of common stock, shares
Cash dividends declared			(1,354)		(1,354)
Preferred dividends			(760)		(760)
Stock-based compensation		20			20
Stock-based compensation, shares		10
Other comprehensive income				350	350
Ending balance at Mar. 31, 2012	63,500	105,068	178,195	(8,332)	338,431
Ending balance, shares at Mar. 31, 2012		16,938			16,937,641
Beginning balance at Dec. 31, 2012	70,787	131,877	153,629	(176)	356,117
Beginning balance, shares at Dec. 31, 2012		19,669			19,669,302
Net income (loss)			3,100		3,100
Cash dividends declared			(1,573)		(1,573)
Preferred dividends			(245)		(245)
Stock-based compensation		19			19
Stock-based compensation, shares
Other comprehensive income				(186)	(186)
Ending balance at Mar. 31, 2013	$ 70,787	$ 131,896	$ 154,911	$ (362)	$ 357,232
Ending balance, shares at Mar. 31, 2013		19,669			19,669,302