Prepaid Expenses (Tables)

12 Months Ended

Dec. 31, 2021

Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]

Schedule of Prepaid Expenses

Prepaid expenses consisted of the following:

	December 31, 2021		December 31, 2020
Prepaid clinical expenses	$	3,269	$	5,151
Prepaid insurance expense		1,399		206
Other		2,408		1,219
	$	7,076	$	6,576