Costs and Estimated Earnings on Uncompleted Contracts (Tables)

6 Months Ended

Jun. 30, 2018

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

	June 30, 2018			December 31, 2017
Costs incurred on uncompleted contracts	$	204,513		$	147,117
Estimated earnings		41,276			46,277
		245,789			193,394
Billings to date		(243,583	)		(212,472	)
	$	2,206		$	(19,078	)

Included in the accompanying balance sheets:
Costs and estimated earnings in excess of billings		2,206			11,226
Billings in excess of costs and estimated earnings		—			(30,304	)
Total	$	2,206		$	(19,078	)