DESCRIPTION OF THE BUSINESS AND BASIS OF PRESENTATION - Concentration of Risk (Details) - customer	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Cost of revenues | Vendor concentration risk
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Number of vendors	0	0	0	0
One customer | Sales revenue | Customer concentration risk
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Number of Customers	1	1	1	1
Concentration risk percentage	25.00%	31.40%	23.60%	27.40%