Leases - Supplemental Cash Flow Information and Non-Cash Activity Schedule (Details) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash paid for amounts included in measurement of liabilities:
Operating cash flows from operating leases	$ 844	$ 834
Operating cash flows from finance leases	4	0
Financing cash flows from finance leases	30	15
Right-of-use assets obtained in exchange for new lease liabilities:
Operating leases	$ 60	$ 0