Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	Common Stock [Member]	Preferred Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at beginning of period at Dec. 31, 2011		$ 32,644	$ 172,390	$ (17,860)	$ 2,880	$ 190,054
Balance at beginning of period (in Shares) at Dec. 31, 2011		32,643,627
Comprehensive income:
Net income (loss)				1,723		1,723
Unrealized holding gains (losses) on available-for-sale securities, net of taxes					556	556
Share-based compensation expense			483			483
Balance at beginning of period at Mar. 31, 2012		32,644	172,873	(16,137)	3,436	192,816
Balance at beginning of period (in Shares) at Mar. 31, 2012		32,643,627
Balance at beginning of period at Dec. 31, 2012	20,500	44,576	220,996	(13,568)	3,198	275,702
Balance at beginning of period (in Shares) at Dec. 31, 2012	20,500,000	44,575,853
Issuance of restricted stock grants		72	(72)
Issuance of restricted stock grants (in Shares)		72,000
Exercise of stock options			1			1
Exercise of stock options (in Shares)		312
Dividends on preferred stock				(51)		(51)
Comprehensive income:
Net income (loss)				3,240		3,240
Unrealized holding gains (losses) on available-for-sale securities, net of taxes					(432)	(432)
Share-based compensation expense			525			525
Balance at beginning of period at Mar. 31, 2013	$ 20,500	$ 44,648	$ 221,450	$ (10,379)	$ 2,766	$ 278,985
Balance at beginning of period (in Shares) at Mar. 31, 2013	20,500,000	44,648,165