Leases - Supplemental Cash Flow Information and Non-Cash Activity Schedule (Details) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash paid for amounts included in measurement of liabilities:
Operating cash flows from operating leases	$ 1,261	$ 1,285
Operating cash flows from finance leases	6	1
Financing cash flows from finance leases	46	18
Right-of-use assets obtained in exchange for new lease liabilities:
Operating leases	$ 60	$ 0