Condensed Consolidated Statement of Stockholders' Equity (Unaudited) (USD $) In Thousands	Total	Common Shares [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning balance at Dec. 31, 2014	$ 208,534	$ 17	$ 565,609	$ (348,719)	$ (8,373)
Beginning balance, Shares at Dec. 31, 2014		17,156
Issuance of common stock pursuant to share-based awards	31		31
Issuance of common stock pursuant to share-based awards, Shares		89
Share-based compensation	5,976		5,976
Net loss	(14,535)			(14,535)
Other comprehensive loss	(40)				(40)
Ending balance at Mar. 31, 2015	$ 199,966	$ 17	$ 571,616	$ (363,254)	$ (8,413)
Ending balance, Shares at Mar. 31, 2015		17,245