Leases - Summary of Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Leases [Abstract]
Right-of-use operating lease costs	$ 68	$ 67	$ 204	$ 178
Short-term lease costs	52	52	148	192
Total	$ 120	$ 119	$ 352	$ 370