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LEASES - Additional information related to leases (Details) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Cash paid for amounts included in the measurement of lease liabilities    
Operating cash flows from operating leases $ 1,503 $ 1,425
Operating cash flows from finance leases 248 313
Financing cash flows from finance leases 301 $ 417
Right-of-use assets obtained in exchange for lease liabilities Operating leases $ 901  
Weighted-average remaining lease term    
Operating leases 9 years 10 months 24 days 5 years 10 months 24 days
Finance leases 12 years 8 months 12 days 12 years 3 months 18 days
Weighted-average discount rate    
Operating leases 3.12% 3.10%
Finance leases 4.58% 4.30%