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Costs and Estimated Earnings on Uncompleted Contracts (Tables)
9 Months Ended
Sep. 30, 2018
Costs and Estimated Earnings on Uncompleted Contracts [Abstract]  
Summary of costs and estimated earnings on uncompleted contracts

 

 

September 30, 2018

 

 

December 31, 2017

 

Costs incurred on uncompleted contracts

 

$

9,183,162

 

 

$

3,681,965

 

Estimated earnings to date on uncompleted contracts

 

 

719,589

 

 

 

328,273

 

Gross contract assets

 

 

9,902,751

 

 

 

4,010,238

 

Less: billings to date

 

 

(11,876,802

)

 

 

(5,622,111

)

Net contract assets (liabilities)

  

$

(1,974,051

)

 

$

(1,611,873

)

Summary of costs included in condensed consolidated balance sheets

 

 

September 30, 2018

 

 

December 31, 2017

 

Costs and estimated earnings in excess of billings on uncompleted contracts

 

$

107,689

 

 

$

61,175

 

Billings in excess of costs and estimated earnings on uncompleted contracts

 

 

(2,081,740

)

 

 

(1,673,048

)

Net contract assets (liabilities)

 

$

(1,974,051

)

 

$

(1,611,873

)