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Contracts (Tables)
 12 Months Ended
Dec. 31, 2015
Contractors [Abstract]  
Costs and Estimated Earnings on Uncompleted Contract
Costs, estimated earnings and billings on uncompleted contracts are comprised of the following as of December 31:
 
 
 
2015
 
2014
Costs Incurred on Uncompleted Contracts
 
$
1,089,036

 
$
964,121

Estimated Earnings on Uncompleted Contracts
 
305,581

 
246,471

 
 
1,394,617

 
1,210,592

Less: Billings to Date
 
(1,403,850
)
 
(1,192,181
)
 
 
$
(9,233
)
 
$
18,411


Included in the accompanying balance sheets under the following captions as of December 31:

 
 
2015
 
2014
Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts
 
$
42,120

 
$
18,411

Billings in Excess of Costs and Estimated Earnings on Uncompleted Contracts
 
(51,353
)
 
—

 
 
$
(9,233
)
 
$
18,411