BASIS OF PRESENTATION AND SUMMARY OF ACCOUNTING POLICIES - Concentrations (Details) - customer	3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Sep. 30, 2019
Total Revenue
Concentration Risk [Line Items]
Number of customers	3	2	5
Total Revenue | One customer
Concentration Risk [Line Items]
Concentration risk percentage	10.00%	55.00%	10.00%	37.00%
Total Revenue | Two customer
Concentration Risk [Line Items]
Concentration risk percentage	17.00%	12.00%	11.00%	20.00%
Total Revenue | Three customers
Concentration Risk [Line Items]
Concentration risk percentage	42.00%		13.00%
Total Revenue | Four customer
Concentration Risk [Line Items]
Concentration risk percentage			13.00%	11.00%
Total Revenue | Five customers
Concentration Risk [Line Items]
Concentration risk percentage			15.00%
Accounts Receivable | One customer
Concentration Risk [Line Items]
Concentration risk percentage			37.00%		77.00%
Number of customers					1
Accounts Receivable | Two customer
Concentration Risk [Line Items]
Concentration risk percentage			16.00%
Accounts Receivable | Three customers
Concentration Risk [Line Items]
Concentration risk percentage			17.00%
Accounts Receivable | Four customer
Concentration Risk [Line Items]
Concentration risk percentage			11.00%
Number of customers			4
Customer Concentration Risk | Total Revenue
Concentration Risk [Line Items]
Number of customers				3