Consolidated Statements of Changes In Stockholders' Equity (USD $) In Thousands, except Share data	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2009	$ 207	$ 1,897	$ 90,852	$ (109)	$ 92,847
Balance (in Shares) at Dec. 31, 2009	10,332,000
Net income (loss)			(43,790)		(43,790)
Other comprehensive income (loss)				122	122
Exercise of stock options .		116			116
Exercise of stock options . (in Shares)	13,000
Issuance of common stock .	80	11,717			11,797
Issuance of common stock . (in Shares)	4,000,000
Stock-based compensation		703			703
Balance at Dec. 31, 2010	287	14,433	47,062	13	61,795
Balance (in Shares) at Dec. 31, 2010	14,345,000
Net income (loss)			(5,025)		(5,025)
Other comprehensive income (loss)				(195)	(195)
Fees related to issuance of common stock		(40)			(40)
Restricted stock grants (in Shares)	179,000
Stock-based compensation		505			505
Balance at Dec. 31, 2011	287	14,898	42,037	(182)	57,040
Balance (in Shares) at Dec. 31, 2011	14,524,000
Net income (loss)			30,384		30,384
Other comprehensive income (loss)				(302)	(302)
Fees related to issuance of common stock		(1)			(1)
Restricted stock grants (in Shares)	188,000
Purchase and retirement of common stock…	(3)	(658)			(661)
Purchase and retirement of common stock… (in Shares)	(146,000)
Stock-based compensation		779			779
Balance at Dec. 31, 2012	$ 284	$ 15,018	$ 72,421	$ (484)	$ 87,239
Balance (in Shares) at Dec. 31, 2012	14,566,000