Costs and Estimated Earnings on Uncompleted Contracts (Tables)

9 Months Ended

Sep. 30, 2018

Costs and estimated earnings in excess of billings on uncompleted contracts are summarized as follows:

	September 30, 2018			December 31, 2017
Costs incurred on uncompleted contracts	$	299,757		$	147,117
Estimated earnings		60,109			46,277
		359,866			193,394
Billings to date		(355,504	)		(212,472	)
		4,362		$	(19,078	)

Included in the accompanying balance sheets:
Costs and estimated earnings in excess of billings		4,362			11,226
Billings in excess of costs and estimated earnings		—			(30,304	)
Total	$	4,362		$	(19,078	)