Consolidated Statement of Stockholders’ Equity (Unaudited) (USD $) In Thousands	Common Stock [Member]	Additional Paid-in Capital [Member] USD ($)	Warrant [Member] USD ($)	Retained Earnings [Member] USD ($)	Total USD ($)
Balance at December 31, 2012 at Dec. 31, 2012		$ 109,022	$ 4,262	$ (46,626)	$ 66,658
Balance at December 31, 2012 (in Shares) at Dec. 31, 2012	33,500
Net loss				(7,375)	(7,375)
Stock options exercised		671			671
Stock options exercised (in Shares)	122				122
Stock-based compensation expense		1,315			1,315
Other		(86)	86
Balance at June 30, 2013 at Jun. 30, 2013		$ 110,922	$ 4,348	$ (54,001)	$ 61,269
Balance at June 30, 2013 (in Shares) at Jun. 30, 2013	33,622