Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock	Additional Paid-In Capital	Treasury Stock	Retained Earnings
Balance at Dec. 31, 2010	$ 301,923	$ 424	$ 335,927	$ (6,884)	$ (27,544)
Balance, shares at Dec. 31, 2010		42,394,809
Issuances of restricted stock			(32)	5,783	(5,751)
Amortization of share-based compensation	3,758		3,758
Purchase of treasury stock	(1,761)			(1,761)
Exercise of stock options / vesting of restricted stock, shares		37,500
Exercise of stock options / vesting of restricted stock	6,386		3,732	2,862	(208)
Net loss	(1,943)				(1,943)
Balance at Jun. 30, 2011	$ 308,363	$ 424	$ 343,385	$ 0	$ (35,446)
Balance, shares at Jun. 30, 2011		42,432,309