8. LEASES - Weighted-average Remaining Lease Terms (Details)	Mar. 31, 2023	Sep. 30, 2022
Leases [Abstract]
Weighted-average remaining lease term - operating leases	22 years 6 months	3 years 2 months 12 days
Weighted-average remaining lease term - finance leases	1 year 4 months 20 days	1 year 6 months 10 days
Weighted-average discount rate - operating leases	6.90%	4.50%
Weighted-average discount rate - finance leases	5.50%	5.50%