Consolidated Statements Of Changes In Stockholders' Equity (USD $) In Thousands, except Share data	Common Stock [Member]	Common Stock Warrants [Member]	Additional Paid In Capital [Member]	Retained Earnings (Deficit) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2011	$ 20,020		$ 21,689	$ (13,085)	$ 249	$ 28,873
Balance, Shares at Dec. 31, 2011	10,010,000
Net income (loss)				(2,535)		(2,535)
Realized gains on available-for-sale securities, net of tax					(48)	(48)
Unrealized gain on available-for-sale securities, net of tax					(120)	(120)
Balance at Mar. 31, 2012	20,020		21,689	(15,620)	81	26,170
Balance, Shares at Mar. 31, 2012	10,010,000
Balance at Dec. 31, 2012	43,731	2,056	13,081	(19,409)	407	39,866
Balance, Shares at Dec. 31, 2012	21,866,000					21,865,535
Net income (loss)				147		147
Exercise of Common Stock Warrants, Amount	11	(5)	5			11
Exercise of Common Stock Warrants, Shares	5,000
Stock offering costs			(32)			(32)
Realized gains on available-for-sale securities, net of tax					(66)	(66)
Unrealized gain on available-for-sale securities, net of tax					(97)	(97)
Balance at Mar. 31, 2013	$ 43,742	$ 2,051	$ 13,054	$ (19,262)	$ 244	$ 39,829
Balance, Shares at Mar. 31, 2013	21,871,000					21,871,063