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Stockholders' Equity - Restricted Stock Units (Details)
9 Months Ended
Sep. 30, 2022
$ / shares
shares
Weighted Average Remaining Contractual Life (in years)  
Outstanding at end of period 8 years 2 months 12 days
Restricted Stock Units  
Restricted Stock Units  
Outstanding at beginning of period (in shares) | shares 2,400
Granted (in shares) | shares 40,000
Vested (in shares) | shares (40,800)
Outstanding at end of period (in shares) | shares 1,600
Weighted Average Grant Date Fair Value  
Outstanding at beginning of period (USD per share) | $ / shares $ 7.14
Granted (USD per share) | $ / shares 1.40
Vested (USD per share) | $ / shares 1.51
Outstanding at end of period (USD per share) | $ / shares $ 7.14
Weighted Average Remaining Contractual Life (in years)  
Outstanding at end of period 7 years 10 months 24 days