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CONTRACT BALANCES (Details) - USD ($)
3 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Sep. 30, 2018
Contract Balances [Abstract]      
Accounts receivable-trade $ 19,368,805   $ 22,227,555
Change in accounts receivable-trade (2,858,750) $ (6,175,377)  
Contract assets      
Cost and estimated eanings in excess of billings 10,531,124   5,353,375
Change in cost and estimated eanings in excess of billings 5,177,749 807,045  
Contract liabilites      
Less contract liabilities 1,556,761   $ 3,261,201
Change in billings in excess of cost and estimated earnings $ (1,704,440) $ 418,125