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Leases - Supplemental Cash Flow Information and Non-Cash Activity Schedule (Details) - USD ($)
$ in Thousands
3 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Cash paid for amounts included in measurement of liabilities:    
Operating cash flows from operating leases $ 430 $ 551
Operating cash flows from finance leases 1 1
Financing cash flows from finance leases $ 13 $ 14