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Stock-Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2021
Share-based Payment Arrangement [Abstract]  
Stock-based Compensation Expense
Stock-based compensation expense has been reported in the Company’s condensed statements of operations as follows (in thousands):

Three Months Ended
September 30,		Nine Months Ended
September 30,
2021202020212020
General and administrative
$496 $422 $1,480 $1,164 
Research and development
224 187 638 491 
Total stock-based compensation
$720 $609 $2,118 $1,655