Income Taxes - Components of income tax expense (benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Current Federal, State and Local, Tax Expense (Benefit) [Abstract]
Federal	$ 0	$ (1,530)
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal	17,719	14,495
Change in valuation allowance	(17,719)	(14,495)
Income tax benefit	$ 0	$ (1,530)