LEASES - Components of lease costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Leases
Option to extend	true
Finance lease cost
Amortization of right-of-use assets	$ 607	$ 492
Interest on lease liabilities	302	313
Operating lease cost	1,561	1,452
Total lease costs	$ 2,470	$ 2,257
Maximum
Leases
Lease term	20 years