Costs and Estimated Earnings on Uncompleted Contracts (Tables)

9 Months Ended

Sep. 30, 2018

Costs and Estimated Earnings on Uncompleted Contracts [Abstract]

Summary of Costs and Estimated Earnings on Uncompleted Contracts

	As of		As of
	September 30, 2018		December 31, 2017
	(in thousands)
Costs incurred on uncompleted contracts	$	33,784	$	31,404
Estimated earnings		13,662		10,541
Billings to date		(30,193)		(24,771)
	$	17,253	$	17,174

Costs and Estimated Earnings on Uncompleted Contracts Accompanying Consolidated Balance Sheets

	As of		As of
	September 30, 2018		December 31, 2017
	(in thousands)
Costs and estimated earnings in excess of billings on uncompleted contracts	$	17,799	$	17,437
Billings in excess of costs and estimated earnings on
uncompleted contracts (included in Other current liabilities)		(546)		(263)
	$	17,253	$	17,174