XML 40 R30.htm IDEA: XBRL DOCUMENT v3.10.0.1
CONTRACT BALANCES (Detail Textuals) - USD ($)
3 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Sep. 30, 2018
Contract Balances [Line Items]      
Accounts receivable-trade $ 19,368,805   $ 22,227,555
Decrease in contracts receivable (2,858,750) $ (6,175,377)  
Contract assets 10,531,124   5,353,375
Increase in contract assets 5,177,749 807,045  
Contract liabilities 1,556,761   $ 3,261,201
(Decrease) increase in contract liabilities (1,704,440) $ 418,125  
Recognized revenue included in contract liability $ 1,700,000    
Maximum      
Contract Balances [Line Items]      
Billing and payment term 45 days    
Minimum      
Contract Balances [Line Items]      
Billing and payment term 30 days