Quarterly report pursuant to Section 13 or 15(d)

Share-based Compensation, Former Rexahn Options (Details)

v3.21.1
Share-based Compensation, Former Rexahn Options (Details) - Rexahn [Member]
3 Months Ended
Mar. 31, 2021
$ / shares
shares
Former Options [Abstract]  
Number of shares outstanding (in shares) | shares 123
Average remaining contractual life 10 months 24 days
Minimum [Member]  
Former Options [Abstract]  
Exercise price (in dollars per share) $ 182.40
Maximum [Member]  
Former Options [Abstract]  
Exercise price (in dollars per share) $ 600.00