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CONTRACT ASSETS AND LIABILITIES (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Schedule of costs and estimated earnings on uncompleted contracts [Abstract]    
Costs incurred on uncompleted contracts $ 41,329 $ 36,969
Estimated profits, thereon 17,143 6,711
Total 58,472 43,680
Less: billings to date 44,859 29,315
Net 13,613 14,365
Schedule of Costs and Estimated Earnings on Uncompleted Contracts Included in Condensed Consolidated Balance Sheets [Abstract]    
Costs and estimated profits in excess of billings 17,193 18,459
Billings in excess of costs and estimated profits (3,581) (4,061)
Translation Adjustment 1 (33)
Net 13,613 $ 14,365
Balances previously classified as contract liabilities at the beginning of the period shipped during fiscal year $ 4,000