Income Taxes - Statutory Federal Income Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Federal provision at statutory tax rate (21%)	$ 71	$ 18	$ (35)
State and local taxes, net of federal benefit	0	0	0
Other	(774)	(1,120)	(1,258)
Total	$ (703)	$ (1,102)	$ (1,293)
Effective income tax rate reconciliation, at federal statutory income tax rate (in percent)	21.00%	21.00%	21.00%