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ACCOUNTING FOR STOCK BASED COMPENSATION PLANS (Details) (USD $)
6 Months Ended 12 Months Ended
Jun. 30, 2012
Dec. 31, 2011
Dec. 31, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock split conversion ratio as multiple 2    
Restricted stock [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares approved for granting of restricted stock awards (in shares)     120,250
Fair value of shares approved for granting of restricted stock awards (in dollars per share)     $ 2
Vesting period of restricted stock awards (in years)     5 years
Stock split conversion ratio as multiple     2
Shares [Abstract]      
Unvested at beginning of year (in shares) 111,694 116,288  
Forfeited (in shares) 0 (1,926)  
Awarded (in shares) 0 0  
Released (in shares) 0 (2,668)  
Unvested at end of period (in shares) 111,694 111,694  
Weighted Average Grant Date Fair Value [Abstract]      
Unvested at beginning of year (in dollars per share) $ 2.00 $ 2.00  
Forfeited (in dollars per share) $ 0 $ 2.00  
Awarded (in dollars per share) $ 0 $ 0  
Released (in dollars per share) $ 0 $ 2.00  
Unvested at end of period (in dollars per share) $ 2.00 $ 2.00