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LEASES (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
Minimum
Dec. 31, 2012
Maximum
Capital Lease Obligations        
2013 $ 2,146,272      
2014 1,356,995      
2015 586,123      
2016 35,340      
Total minimum lease payments required 4,124,730      
Less: Amount representing interest (279,290)      
Present value of minimum lease payments 3,845,440      
Less current maturities (1,960,503) (1,336,037)    
Capital lease obligations, noncurrent 1,884,937 1,626,612    
Capital Lease Obligations        
Net book value of capital assets leased 4,957,000 3,604,000    
Total accumulated depreciation $ 5,114,466 $ 3,743,000    
Interest rate (as a percent)     5.11% 10.51%