Consolidated Statements Of Shareholders' Deficit (USD $) In Thousands	Shares Of Common Stock [Member]	Shares Of Treasury Stock [Member]	Common Stock [Member]	Treasury Stock [Member]	Accumulated Deficit [Member]	Stock Recapitalization [Member]	Accumulated Other Comprehensive Loss [Member]	Stock Purchase Warrants [Member]	Stock Subscription Receivables [Member]	Total
Balance at Dec. 31, 2008			$ 362,945	$ (1,580)	$ (114,034)	$ (189,589)	$ (26,488)		$ (234)	$ 31,020
Balance, shares at Dec. 31, 2008	19,754	(205)
Net income (loss)					(180,534)					(180,534)
Issuance of restricted stock, shares	543
Forfeiture of restricted stock, shares		(15)
Amortization of restricted stock			388							388
Amortization of stock options			713							713
Forgiveness of stock subscriptions receivable									80	80
Issuance of stock purchase warrants								6,696		6,696
Translation adjustment, net of tax							(134)			(134)
Adjustment to pension obligation, net of tax							1,035			1,035
Balance at Dec. 31, 2009			364,046	(1,580)	(294,568)	(189,589)	(25,587)	6,696	(154)	(140,736)
Balance, shares at Dec. 31, 2009	20,297	(220)
Net income (loss)					(7,406)					(7,406)
Issuance of restricted stock, shares	69
Forfeiture of restricted stock
Amortization of restricted stock			923							923
Amortization of stock options			1,350							1,350
Stock warrant exercise			5,013					(5,013)
Stock warrant exercise, shares	1,311
Stock option exercise			3							3
Stock option exercise, shares	1
Forgiveness of stock subscriptions receivable									21	21
Satisfaction of stock subscriptions receivable			(47)	(13)					60
Other stock transactions									73	73
Translation adjustment, net of tax							(87)			(87)
Adjustment to pension obligation, net of tax							(520)			(520)
Balance at Dec. 31, 2010			371,288	(1,593)	(301,974)	(189,589)	(26,194)	1,683		(146,379)
Balance, shares at Dec. 31, 2010	21,678	(220)
Net income (loss)					23,431				23,431	23,431
Issuance of restricted stock, shares	93
Forfeiture of restricted stock				(272)					(272)
Forfeiture of restricted stock, shares		(42)
Amortization of restricted stock			1,097						1,097
Amortization of stock options			1,777						1,777
Stock warrant exercise			336					(336)
Stock warrant exercise, shares	88
Stock option exercise			1,781	(13)					1,768
Stock option exercise, shares	348	(1)
Proceeds from equity offering, net of transaction costs			17,580						17,580
Proceeds from equity offering, net of transaction costs, shares	2,000
Satisfaction of stock subscriptions receivable, shares		(4)
Translation adjustment, net of tax							26		26
Adjustment to pension obligation, net of tax							(5,213)		(5,213)	(5,213)
Balance at Dec. 31, 2011			$ 393,859	$ (1,878)	$ (278,543)	$ (189,589)	$ (31,381)	$ 1,347	$ (106,185)	$ (106,185)
Balance, shares at Dec. 31, 2011	24,207	(267)