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COSTS AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS (Tables)
 3 Months Ended
Mar. 31, 2017
Contractors [Abstract]  
Schedule of costs and estimated earnings in excess of billings on uncompleted contracts (unbilled)

Costs and estimated earnings in excess of billings on uncompleted contracts consist of:

 

   March 31, 2017 
   U.S         
   Government   Commercial   Total 
             
               
Costs incurred on uncompleted contracts  $350,245,484   $160,200,864   $510,446,348 
Estimated earnings   41,604,960    59,384,245    100,989,205 
Sub-total   391,850,444    219,585,109    611,435,553 
Less billings to date   340,937,961    168,889,481    509,827,442 
                
Costs and estimated earnings in excess of billings on uncompleted contracts  $50,912,483   $50,695,628   $101,608,111 

 

   December 31, 2016 
   U.S.         
   Government   Commercial   Total 
             
Costs incurred on uncompleted contracts  $341,003,461   $153,898,425   $494,901,886 
Estimated earnings   39,638,231    58,346,518    97,984,749 
Sub-total   380,641,692    212,244,943    592,886,635 
Less billings to date   331,277,942    162,145,504    493,423,446 
                

 Costs and estimated earnings in excess of billings on uncompleted contracts

  $49,363,750   $50,099,439   $99,463,189 

 
Schedule of costs and estimated earnings in excess of billings on uncompleted contracts included in balance sheet

The above amounts are included in the accompanying condensed balance sheets under the following captions at March 31, 2017 and December 31, 2016:

 

   March 31, 2017   December 31, 2016 
Costs and estimated earnings in excess of billings on uncompleted contracts  $101,929,550   $99,578,526 
Billings in excess of costs and estimated earnings on uncompleted contracts   (321,439)   (115,337)
         
Totals  $101,608,111   $99,463,189