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LINE OF CREDIT (Details) (USD $)
Jun. 30, 2013
Dec. 31, 2012
Line of Credit Facility [Line Items]    
Outstanding amount under line of credit facility $ 29,950,000 $ 23,450,000
Sovereign Revolving Facility [Member]
   
Line of Credit Facility [Line Items]    
Outstanding amount under line of credit facility 29,950,000  
Sovereign Revolving Facility [Member] | Term loan[Member]
   
Line of Credit Facility [Line Items]    
Revolving credit facility under credit agreement 18,000,000  
Sovereign Revolving Facility [Member] | Restated Agreement [Member]
   
Line of Credit Facility [Line Items]    
Revolving credit facility under credit agreement $ 35,000,000