Quarterly report pursuant to Section 13 or 15(d)

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

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Contracts in Progress (Billings in Excess of Costs and Estimated Earnings) (Details) - USD ($)
Sep. 30, 2023
Dec. 31, 2022
Contracts in Progress [Abstract]    
Billings to date $ 1,901,527 $ 4,208,409
Costs incurred on uncompleted contracts 78,327 1,122,453
Estimated earnings 72,944 380,547
Cost plus estimated earnings 151,271 1,503,000
Billings in excess of costs plus estimated earnings on uncompleted contracts $ 1,750,256 $ 2,705,409