Leases - Summary of Operating Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Sep. 30, 2022
Assets:
Operating lease assets, net	$ 2,159	$ 2,179
Liabilities:
Current operating lease liabilities	1,545	1,777
Long-term operating lease liabilities	713	545
Total lease liabilities	$ 2,258	$ 2,322