Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid insurance	$ 787	$ 59
Prepaid clinical costs	7,694	4,481
Other	414	187
Prepaid expenses and other current assets	$ 8,895	$ 4,727