Quarterly report pursuant to Section 13 or 15(d)

Merger, Former Rexahn Warrants (Details)

v3.21.2
Merger, Former Rexahn Warrants (Details) - Rexahn [Member] - $ / shares
3 Months Ended
Jun. 30, 2021
Nov. 05, 2020
Former Rexahn Warrants [Abstract]    
Number of warrants outstanding (in shares) 66,538 231,433
Average remaining contractual life 2 years 4 months 24 days  
Minimum [Member]    
Former Rexahn Warrants [Abstract]    
Exercise price (in dollars per share) $ 38.40  
Maximum [Member]    
Former Rexahn Warrants [Abstract]    
Exercise price (in dollars per share) $ 198.00