CONTRACT BALANCES (Details) - USD ($)	9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Sep. 30, 2021
CONTRACT BALANCES
Accounts receivable-trade, net of allowance for doubtful accounts	$ 24,108,401		$ 21,022,207
Change in accounts receivable-trade, net of allowance for doubtful accounts	3,086,194	$ (3,936,155)
Contract assets
Cost and estimated earnings in excess of billings	11,937,080		8,730,402
Change in cost and estimated earnings in excess of billings	3,206,678	674,444
Contract liabilities
Billings in excess of cost and estimated earnings	6,014,875		$ 3,153,290
Change in billings in excess of cost and estimated earnings	$ 2,861,585	$ (1,223,272)