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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' DEFICIENCY (USD $)
In Thousands
 6 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Dec. 31, 2009
Previously Reported
Dec. 31, 2009
Previously Reported
Common Stock
Dec. 31, 2009
Previously Reported
Additional Paid in Capital
Dec. 31, 2009
Previously Reported
Accumulated Deficit
Dec. 31, 2009
Previously Reported
Accumulated Other Comprehensive Loss
Dec. 31, 2009
Prior Period Adjustment
Dec. 31, 2009
Prior Period Adjustment
Accumulated Deficit
Jun. 30, 2011
Common Stock
Jun. 30, 2010
Common Stock
Jun. 30, 2011
Additional Paid in Capital
Jun. 30, 2010
Additional Paid in Capital
Jun. 30, 2011
Accumulated Deficit
Jun. 30, 2010
Accumulated Deficit
Jun. 30, 2010
Accumulated Other Comprehensive Loss
Jun. 30, 2011
Accumulated Other Comprehensive Loss
Dec. 31, 2010
Accumulated Other Comprehensive Loss
Increase (Decrease) in Stockholders' Equity                                    
Balance $ (25,180) $ (77,876) $ (76,941) $ 35,437 $ 9,019 $ (116,723) $ (4,674) $ (935) $ (935) $ 75,461 $ 35,437 $ 9,159 $ 9,019 $ (92,906) $ (117,658) $ (4,674) $ (16,894) $ (16,894)
Balance (in shares)       8,087           18,516 8,087              
Pension benefits adjustment (Note 10)   615                           615    
Share-based compensation expense 330 428                   330 428          
Vested restricted stock issued                   298 348 (298) (348)          
Vested restricted stock issued (in shares)                   44 42              
Shares cancelled to pay tax liability (76) (78)               (76) (78)              
Shares cancelled to pay tax liability (in shares)                   (14) (17)              
Net income (loss) 9,963 (7,292)                       9,963 (7,292)      
Balance $ (14,963) $ (84,203) $ (76,941) $ 35,437 $ 9,019 $ (116,723) $ (4,674) $ (935) $ (935) $ 75,683 $ 35,707 $ 9,191 $ 9,099 $ (82,943) $ (124,950) $ (4,059) $ (16,894) $ (16,894)
Balance (in shares)       8,087           18,546 8,112