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CONTRACT ACCOUNTING (Schedule of billings in excess of costs and estimated earnings) (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Contractors [Abstract]    
Billings and/or cash receipts on uncompleted contracts $ 2,978,007 $ 35,665
Less: Costs and estimated earnings recognized (2,268,454) (27,004)
Contract Liabilities $ 709,553 $ 8,661