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Costs and Estimated Earnings on Uncompleted Contracts (Tables)

6 Months Ended

Jun. 30, 2018

Costs and Estimated Earnings on Uncompleted Contracts [Abstract]

Summary of costs and estimated earnings on uncompleted contracts

		June 30, 2018				December 31, 2017
Costs incurred on uncompleted contracts		$	7,267,669			$	3,681,965
Estimated earnings to date on uncompleted contracts			494,749				328,273
Gross contract assets (liabilities)			7,762,418				4,010,238
Less: billings to date			(8,456,494	)			(5,622,111	)
Net contract assets (liabilities)		$	(694,076	)		$	(1,611,873	)

Summary of costs included in condensed consolidated balance sheets

		June 30, 2018				December 31, 2017
Costs and estimated earnings in excess of billings on uncompleted contracts		$	131,392			$	61,175
Billings in excess of cost and estimated earnings on uncompleted contracts			(825,468	)			(1,673,048	)
Net contract assets (liabilities)		$	(694,076	)		$	(1,611,873	)

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Costs and estimated earnings amounts on uncompleted contracts included balance sheets.

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Tabular disclosure for billings on uncompleted contracts in excess of costs and costs of uncompleted contracts in excess of billings.

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