UNCOMPLETED CONTRACTS - SUMMARY OF COST, ESTIMATED EARNINGS AND BILLINGS ON UNCOMPLETED CONTRACTS (Details) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Contractors [Abstract]
Costs incurred on uncompleted contracts	$ 12,175,900	$ 5,991,300
Estimated earnings (loss)	(1,163,400)	811,600
Costs and estimated earnings on uncompleted contracts	11,012,500	6,802,900
Billings to date	9,645,100	4,635,700
Costs and estimated earnings in excess of billings on uncompleted contracts	1,367,400	2,167,200
Billings in excess of costs and estimated earnings on uncompleted contracts	0	0
Contract Assets, net	$ 1,367,400	$ 2,167,200