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Contracts in Progress (Tables)
 3 Months Ended
Mar. 31, 2019
Contractors [Abstract]  
Summary of Contracts in Progress
Contracts in progress are as follows at March 31, 2019 and December 31, 2018:
 
March 31,
2019
 
December 31,
2018
Costs incurred on uncompleted contracts
$
601,578

 
$
461,144

Estimated earnings
63,065

 
73,170

 
664,643

 
534,314

Less: Billings to date
(685,375
)
 
(546,858
)
 
$
(20,732
)
 
$
(12,544
)
Included in the accompanying Consolidated Balance Sheet under the following captions:
 

 
 

Costs and estimated earnings in excess of billings on uncompleted contracts
$
15,133

 
$
9,217

Billings in excess of costs and estimated earnings on uncompleted contracts
(35,865
)
 
(21,761
)
 
$
(20,732
)
 
$
(12,544
)