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FORGIVABLE LOANS RECEIVABLE - Narrative (Details) - USD ($)
9 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Sep. 30, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Forgiveness of loans balance $ 500,000 $ 474,000  
Loans Receivable      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Allowance for doubtful accounts receivable $ 0   $ 0
Maximum      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Interest rate (as a percent) 4.00%