CONTRACT ASSETS AND CONTRACT LIABILITIES (Details) - USD ($) $ in Thousands	Jul. 01, 2023	Dec. 31, 2022
CONTRACT ASSETS AND CONTRACT LIABILITIES
Costs incurred on uncompleted contracts	$ 53,994	$ 59,298
Estimated earnings on uncompleted contracts	2,519	4,464
Earned revenues	56,513	63,762
Less: billings to date	53,817	59,784
Net costs and estimated earnings in excess of billings	2,696	3,978
Contract assets	3,748	4,934
Contract liabilities	(1,052)	(956)
Net contract assets	$ 2,696	$ 3,978