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Net Loss Per Share - Potential shares excluded from calculation (Details) - shares
9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Stock Options    
Net Loss Per Share    
Antidilutive securities excluded from computation of earnings per share 1,657,342 1,035,853
Warrants    
Net Loss Per Share    
Antidilutive securities excluded from computation of earnings per share 2,400 2,400