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COSTS AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS (Tables)
6 Months Ended
Jun. 30, 2012
COSTS AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS [Abstract]  
Costs and estimated earnings in excess of billings on uncompleted contracts
Costs and estimated earnings in excess of billings on uncompleted contracts consist of:

   
June 30, 2012
 
   
U.S
       
   
Government
  
Commercial
  
Total
 
          
Costs incurred on uncompleted Contracts
 $189,660,656  $32,650,144  $222,310,800 
Estimated earnings
  76,045,372   18,808,566   94,853,938 
Sub-total
  265,706,028   51,458,710   317,164,738 
Less billings to date
  194,687,800   33,759,272   228,447,072 
Costs and estimated earnings in excess of billings on uncompleted contracts
 $71,018,228  $17,699,438  $88,717,666 

   
December 31, 2011
 
   
U.S.
       
   
Government
  
Commercial
  
Total
 
          
Costs incurred on uncompleted contracts
 $162,233,699  $24,713,310  $186,947,009 
Estimated earnings
  72,883,505   15,029,802   87,913,307 
Sub-total
  235,117,204   39,743,112   274,860,316 
Less billings to date
  171,694,325   24,155,629   195,849,954 
Costs and estimated earnings in excess of billings on uncompleted contracts
 $63,422,879  $15,587,483  $79,010,362