Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accrued Expenses and Other Current Liabilities
Legal costs	$ 577	$ 17
Advisory costs	151	75
Audit services	59	161
Payroll	11	39
Other		25
Total expenses	$ 798	$ 317