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UNAUDITED CONSOLIDATED STATEMENTS SHAREHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Common Stock [Member]	Additional paid in capital [Member]	Deficit [Member]	Accumulated other comprehensive income (loss) [Member]	Total
Balances at Dec. 31, 2011	$ 380,119	$ 24,670	$ (263,741)	$ 175	$ 141,223
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock options expensed	0	237	0	0	237
Restricted stock units expensed	0	775	0	0	775
Compensation options exercised	733	0	0	0	733
Other comprehensive loss	0	0	0	(84)	(84)
Net loss	0	0	(11,226)	0	(11,226)
Balances at Mar. 31, 2012	$ 380,852	$ 25,682	$ (274,967)	$ 91	$ 131,658

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