Consolidated Statements of Stockholders' Deficit (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Warrants	Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Balance at Dec. 31, 2011	$ (2,305)	$ 15	$ 13,532	$ 411,498	$ (395,804)	$ (31,546)
Balance (in shares) at Dec. 31, 2011		15,145,451
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock (in shares)		164,266
Net (loss) income	(18,035)				(18,035)
Other Comprehensive (loss) income	(10,347)					(10,347)
Issuance of common stock	(323)			(323)
Stock-based compensation	1,949			1,949
Balance at Dec. 31, 2012	(29,061)	15	13,532	413,124	(413,839)	(41,893)
Balance (in shares) at Dec. 31, 2012		15,309,717
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock (in shares)		74,186
Net (loss) income	4,153				4,153
Other Comprehensive (loss) income	11,841					11,841
Issuance of common stock	(118)			(118)
Stock-based compensation	1,736			1,736
Balance at Dec. 31, 2013	(11,449)	15	13,532	414,742	(409,686)	(30,052)
Balance (in shares) at Dec. 31, 2013		15,383,903
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock (in shares)		176,724
Net (loss) income	(7,382)				(7,382)
Other Comprehensive (loss) income	(55,886)					(55,886)
Issuance of common stock	(1,941)	1		(1,942)
Stock-based compensation	2,548			2,548
Reclass warrants to additional paid in capital	0		(13,532)	13,532
Balance at Dec. 31, 2014	$ (74,110)	$ 16	$ 0	$ 428,880	$ (417,068)	$ (85,938)
Balance (in shares) at Dec. 31, 2014		15,560,627