Leases (Lease-Related Supplemental Cash Flow Information) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows for operating leases	$ 1,151	$ 1,254
Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows for finance leases	18	20
Cash paid for amounts included in the measurement of lease liabilities: Financing cash flows for finance leases	396	439
Right-of-use assets obtained in exchange for recorded lease obligations: Operating leases	1,130	3,540
Right-of-use assets obtained in exchange for recorded lease obligations: Finance leases	$ 12	$ 1,211