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COMMITMENTS AND CONTINGENCIES (Tables)
12 Months Ended
Dec. 31, 2012
COMMITMENTS AND CONTINGENCIES [Abstract]  
Future Minimum Rental Payments for Operating Leases
The Company leases certain semi-trailers and premises under noncancelable operating lease agreements. Future minimum annual lease payments under these leases are as follows:
 
2013
 $740,908 
2014
  366,865 
2015
  270,799 
2016
  157,976 
2017 and thereafter
  367,602 
      
Total
 $1,904,150