Leases - Summary Balance Sheet Classification of Operating Leases and Weighted Average Remaining Lease Term and Discount Rate (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Lease Assets
Operating lease right-of-use assets	$ 181	$ 356
Total lease assets	181	356
Lease Liabilities
Operating lease liabilities, current	190	248
Operating lease liabilities, net of current portion		127
Total lease liabilities	$ 190	$ 375
Weighted-average remaining lease term --- operating leases (years)	9 months	1 year 6 months
Weighted-average discount rate --- operating leases	3.75%	3.75%