XML 18 R22.htm IDEA: XBRL DOCUMENT v3.19.3
Contract Assets and Contract Liabilities - Schedule of Costs Estimated Earnings and Billings on Uncompleted Contracts (Details) - USD ($)
$ in Thousands
Sep. 28, 2019
Dec. 29, 2018
Contractors [Abstract]    
Costs incurred on uncompleted contracts $ 24,451 $ 34,800
Estimated earnings on uncompleted contracts 4,843 6,921
Earned revenues 29,294 41,721
Less: billings to date 25,979 39,150
Net costs and estimated earnings in excess of billings (billings in excess of costs) on uncompleted contracts 3,315 2,571
Contract assets 4,128 3,175
Contract liabilities (813) (604)
Net contract assets $ 3,315 $ 2,571