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Condensed Consolidated Statement of Changes In Deficit (USD $)
In Thousands, except Share data
Total
Common Shares
Additional Paid- in Capital
Treasury Shares
Accumulated Deficit
Beginning Balance at Dec. 31, 2013 $ (33,856) $ 141,477 $ 738,754 $ (217) $ (913,870)
Beginning Balance (in shares) at Dec. 31, 2013   172,691,063      
Exercise of stock options (in shares) 215,000 215,000      
Exercise of stock options 284 177 107    
Reacquisition of conversion option in convertible notes (10,100)   (10,100)    
Tax benefits realized from stock-based compensation 1   1    
Stock-based compensation 4,351   4,351    
Loss for the period (10,657)       (10,657)
Ending Balance at Jun. 30, 2014 $ (49,977) $ 141,654 $ 733,113 $ (217) $ (924,527)
Ending Balance (in shares) at Jun. 30, 2014   172,906,063