LEASES (Details) - USD ($)	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
LEASES
Operating lease ,existence of option to extend	true
ROU asset	$ 4,200,000	$ 4,400,000
Location of ROU asset	Other assets	Other assets
Lease liability	$ 4,355,000	$ 4,600,000
Location of lease liability	us-gaap:OtherLiabilities	us-gaap:OtherLiabilities
Lease expense	$ 825,000	$ 1,100,000	$ 2,000,000.0
Minimum
LEASES
Renewal term	1 year
Noncancelable operating leases terms	3 years
Maximum
LEASES
Renewal term	20 years
Noncancelable operating leases terms	11 years