CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - 3 months ended Mar. 31, 2016 - USD ($) shares in Thousands, $ in Thousands	Total	Accumulated Deficit [Member]	AOCI Attributable to Parent [Member]	Common Stock	Additional Paid-in Capital [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2015	$ 195,505	$ (604,270)	$ (246)	$ 2,157	$ 817,434	$ (19,570)
Balance (in shares) at Dec. 31, 2015				21,573
Balance (in shares) at Dec. 31, 2015						993
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(15,452)	(15,452)
Repurchase of common stock	(5,445)					$ (5,445)
Repurchase of common stock (in shares)						428
Issuance of restricted stock, net	48				30	$ 18
Issuance of restricted stock, net (in shares)						(1)
Stock-based compensation expense	807				807
Other comprehensive loss	(10)		(10)
Balance at Mar. 31, 2016	$ 175,453	$ (619,722)	$ (256)	$ 2,157	$ 818,271	$ (24,997)
Balance (in shares) at Mar. 31, 2016				21,573
Balance (in shares) at Mar. 31, 2016						1,420