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SHARE-BASED COMPENSATION AND SHAREHOLDERS' EQUITY- Summary of activity in non-vested restricted stock awards (Details 3) (Non-vested restricted stock, USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Non-vested restricted stock
     
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Non-vested at January 1, 2012 531    
Granted 785    
Vested (190)    
Forfeited       
Non-vested at December 30, 2012 1,126 531  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]      
Non-vested at January 1, 2012 $ 1.65    
Granted $ 1.56 $ 1.76 $ 1.43
Vested $ 1.74    
Forfeited       
Non-vested at December 30, 2012 $ 1.57 $ 1.65