Schedule of Accrued and Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Accrued Liabilities, Current [Abstract]
Accrued payroll and other employee benefits	$ 1,215	$ 1,278
Accrued research and development	1,390	1,257
Accrued legal and professional fees	156	61
Accrued other general and administrative fees	228	219
Total accrued and other current liabilities	$ 2,989	$ 2,815