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Contracts in Progress (Tables)
 12 Months Ended
Dec. 31, 2015
Contractors [Abstract]  
Contracts in progress
Contracts in progress are as follows at December 31, 2015 and December 31, 2014:
 
December 31,
2015
 
December 31,
2014
Costs incurred on uncompleted contracts
$
782,934

 
$
554,109

Estimated earnings
132,694

 
97,687

 
915,628

 
651,796

Less: Billings to date
(884,504
)
 
(623,919
)
 
$
31,124

 
$
27,877

Included in the accompanying consolidated balance sheets under the following captions:
 

 
 

Costs and estimated earnings in excess of billings on uncompleted contracts
59,608

 
$
44,581

Billings in excess of costs and estimated earnings on uncompleted contracts
(28,484
)
 
(16,704
)
 
$
31,124

 
$
27,877