Contracts (Tables)

12 Months Ended

Dec. 31, 2016

Contractors [Abstract]

Schedule of Costs Estimated Earnings and Billings on Uncompleted Contracts

Costs, estimated earnings and billings on uncompleted contracts consist of the following at December 31, 2016 and December 26, 2015 (amounts in thousands):

	2016			2015
Costs incurred on uncompleted contracts	$	58,933		$	67,488
Estimated earnings on uncompleted contracts		24,694			27,492
Earned revenues		83,627			94,980
Less: billings to date		82,564			94,830
Net costs in excess of billings on uncompleted contracts	$	1,063		$	150
Costs and estimated earnings in excess of billings on uncompleted contracts	$	2,434		$	4,062
Billings in excess of costs and estimated earnings on uncompleted contracts		(1,371	)		(3,912	)
Net costs in excess of billings on uncompleted contracts	$	1,063		$	150