Quarterly report pursuant to Section 13 or 15(d)

Contracts in Progress (Costs and Estimated Earnings in Excess of Billings) (Details)

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Contracts in Progress (Costs and Estimated Earnings in Excess of Billings) (Details) - USD ($)
Jun. 30, 2023
Dec. 31, 2022
Contracts in Progress [Abstract]    
Costs incurred on uncompleted contracts $ 2,289,239 $ 931,801
Estimated earnings 1,526,260 513,648
Costs and estimated earnings on uncompleted contracts 3,815,499 1,445,449
Billings to date 3,273,525 667,964
Costs and estimated earnings in excess of billings on uncompleted contracts $ 541,974 $ 777,485