Income Taxes - Components of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Current:
Federal	$ 0	$ 0
State	1	1
Current income tax expense (benefit), total	1	1
Deferred:
Federal	0	0
State	0	0
Deferred income tax expense (benefit), total	0	0
Income tax expense	$ 1	$ 1