LEASES - SUPPLEMENTAL LEASE INFORMATION (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Leases [Abstract]
Cash paid related to operating lease liabilities	$ 114	$ 108
Operating lease, weighted average remaining lease term (in years)	1 year 8 months 12 days	2 years 4 months 24 days
Operating lease, weighted average discount rate	5.53%	5.30%