Quarterly report pursuant to Section 13 or 15(d)

Net loss per share (Details)

v3.23.2
Net loss per share (Details) - shares
 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Series A, Series B and RDO Warrants [Member]    
Net Loss Per Share [Abstract]    
Antidilutive securities excluded from computation of net loss per share (in shares) 7,204,299 7,283,000
Stock Options [Member]    
Net Loss Per Share [Abstract]    
Antidilutive securities excluded from computation of net loss per share (in shares) 3,444,656 2,784,544
RSUs [Member]    
Net Loss Per Share [Abstract]    
Antidilutive securities excluded from computation of net loss per share (in shares) 282,008 0
Unissued Common Stock for Services [Member]    
Net Loss Per Share [Abstract]    
Antidilutive securities excluded from computation of net loss per share (in shares) 0 14,147
Former Rexahn Warrants [Member]    
Net Loss Per Share [Abstract]    
Antidilutive securities excluded from computation of net loss per share (in shares) 58,597 63,734