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CONTRACT ACCOUNTING (Schedule of billings in excess of costs and estimated earnings) (Details) - USD ($) | Dec. 31, 2020 | Dec. 31, 2019
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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

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