Contract Assets and Contract Liabilities (Tables)

12 Months Ended

Dec. 31, 2019

Contract Assets and Contract Liabilities [Abstract]

Summary of costs and estimated earnings on uncompleted contracts

	2019			2018
Costs incurred on uncompleted contracts	$	513,558		$	11,307,975
Estimated earnings to date on uncompleted contracts		127,032			838,615
Gross contract assets		640,590			12,146,590
Less: billings to date		(703,532	)		(13,221,152	)
Net contract assets (liabilities)	$	(62,942	)	$	(1,074,562	)

Summary of costs included in condensed consolidated balance sheets

	2019			2018
Contract assets	$	106,015		$	260,325
Contract liabilities		(168,957	)		(1,334,887	)
Net contract assets (liabilities)	$	(62,942	)	$	(1,074,562	)