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Contract Assets and Contract Liabilities (Details 1) - USD ($)
Mar. 31, 2024
Dec. 31, 2023
Costs and estimated earnings amounts on uncompleted contracts included in balance sheets    
Contract assets $ 10,745 $ 10,745
Contract liabilities (490,696) (1,366,998)
Net contract liabilities $ (479,951) $ (1,356,253)