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EQUITY Stock option activity (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
9 Months Ended
Sep. 30, 2012
years
Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 1,388,333  
Granted 190,000  
Exercised (215,197)  
Forfeited or expired (152,803)  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 1,210,333  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number 944,708  
Weighted Average Exercise Price Per Share - Outstanding   $ 4.17
Weighted average exercise price of options granted $ 0  
Weighted average exercise price exercised options $ 3.18  
Weighted Average Exercise Price Per Share - Forfeited or Expired $ 5.29  
Outstanding, Weighted Average Exercise Price $ 4.82  
Outstanding, Weighted Average Remaining Contractual Term 3.5  
Outstanding, Intrinsic Value $ 5,028  
Exercisable Options, Weighted Average Exercise Price $ 4.13  
Exercisable Options, Weighted Average Remaining Contractual Term 4.1  
Exercisable, Intrinsic Value $ 4,526