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COMPENSATION PLANS (Details Textuals 1) (Stock Incentive Plan 2007, USD $)
12 Months Ended
Jun. 30, 2012
Stock Options
Dec. 31, 2011
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
The aggregate intrinsic value of options outstanding     
Vesting period of options   3 years