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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $)
In Thousands, except Share data
Common Stock
Retained Earnings / Accumulated Deficit
Accumulated Other Comprehensive Income / Loss
Total
Beginning Balance, Amount at Dec. 31, 2011 $ 62,466 $ (68,138) $ (8,535) $ (14,207)
Beginning Balance, Shares at Dec. 31, 2011 19,527      
Common stock issued upon exercise of options and warrants, Amount 1,206       1,206
Common stock issued upon exercise of options and warrants, Shares 632      
Purchase of common stock, Amount (435)       (435)
Purchase of common stock, Shares (320)      
Pension benefit obligation       2,898 2,898
Reclassification of warrants from debt 1,307       1,307
Stock-based compensation 1,134       1,134
Net income    69,408    69,408
Ending Balance, Amount at Dec. 31, 2012 65,678 1,270 (5,637) 61,311
Ending Balance, Shares at Dec. 31, 2012 19,839      
Common stock issued upon exercise of options and warrants, Amount 3,297       3,297
Common stock issued upon exercise of options and warrants, Shares 4,177      
Pension benefit obligation       4,542 4,542
Reclassification of warrants from debt 583       583
Stock-based compensation 3,864       3,864
Net income    21,005    21,005
Ending Balance, Amount at Dec. 31, 2013 $ 73,422 $ 22,275 $ (1,095) $ 94,602
Ending Balance, Shares at Dec. 31, 2013 24,016