Leases - Summary of Other Information Related to Operating Leases (Details) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Leases [Abstract]
Operating cash flows from operating leases	$ 190	$ 142
Operating lease assets obtained in exchange for new lease liabilities		$ 1,336
Weighted average remaining lease term	4 years 10 months 24 days	5 years 9 months 18 days
Weighted average discount rate	3.25%	3.25%