Contract Assets and Contract Liabilities (Tables)

3 Months Ended

Mar. 31, 2020

Contract Assets and Contract Liabilities [Abstract]

Summary of costs and estimated earnings on uncompleted contracts

	2020			2019
Costs incurred on uncompleted contracts	$	412,479		$	513,558
Estimated earnings to date on uncompleted contracts		131,934			127,032
Gross contract assets		544,413			640,590
Less: billings to date		(668,959	)		(703,532	)
Net contract assets (liabilities)	$	(124,546	)	$	(62,942	)

Summary of costs included in condensed consolidated balance sheets

	2020			2019
Contract assets	$	12,660		$	106,015
Contract liabilities		(137,206	)		(168,957	)
Net contract assets (liabilities)	$	(124,546	)	$	(62,942	)