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SHARE-BASED COMPENSATION Employee Stock Purchase Plan (Details) (Employee Stock, USD $)
In Thousands, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Compensation Related Costs Share Based Payments Disclosure [Line Items]    
Discount rate   15.00%
Expense from ESPP $ 163 $ 242
Maximum
   
Compensation Related Costs Share Based Payments Disclosure [Line Items]    
Number of shares authorized per employee   1,000