Other Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Other Liabilities Disclosure [Abstract]
Accrued compensation	$ 1,210	$ 2,868
Excise tax liability	0	96
Accrued directors fees	38	36
Operating lease liability	6	11
Other liabilities – Note 9	$ 1,254	$ 3,011