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Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2022
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
June 30,		Six Months Ended
June 30,
2022202120222021
General and administrative
$500 $510 $943 $984 
Research and development
215 219 369 414 
Total stock-based compensation
$715 $729 $1,312 $1,398