Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2023

Restricted Stock and Restricted Stock Units (RSUs) [Member]

Schedule of total compensation cost recognized in the statement of operations

Total compensation cost recognized for all stock options, restricted stock awards and restricted stock units in the statements of operations is as follows (in thousands):

	Three Months Ended
	March 31,
	2023		2022
Research and development	$	1,342	$	1,278
Selling, general and administrative		2,399		2,100
Total	$	3,741	$	3,378