Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions (Details)

v3.21.1
Related Party Transactions (Details)
 3 Months Ended
Nov. 05, 2020
shares
Mar. 31, 2021
USD ($)
Director
shares
Mar. 31, 2020
USD ($)
BoardMember
Officer
Apexian Sublicense Agreement [Abstract]      
Common stock issued (in shares) 7,091,878    
Waiver Agreements [Abstract]      
Number of directors signed waiver agreements | Director   6  
Apexian Sublicense Agreement [Member]      
Apexian Sublicense Agreement [Abstract]      
Common stock issued (in shares)   891,422  
Percentage of common stock issued to related party   5.00%  
Apexian Sublicense Agreement [Member] | Common Stock [Member]      
Apexian Sublicense Agreement [Abstract]      
Common stock issued (in shares)   891,422  
Pre-Merger Financing [Member]      
Pre-Merger Financing [Abstract]      
Amount invested in pre-merger financing | $   $ 300,000  
Number of converted initial shares received by directors (in shares)   17,729  
Number of converted additional shares (in shares)   53,189  
Pre-Merger Financing [Member] | Private Ocuphire [Member]      
Pre-Merger Financing [Abstract]      
Number of directors | Director   5  
Pre-Merger Financing [Member] | Rexahn [Member]      
Pre-Merger Financing [Abstract]      
Number of directors | Director   1  
Pre-Merger Financing [Member] | Series A Warrants [Member]      
Pre-Merger Financing [Abstract]      
Number of converted additional shares (in shares)   80,366  
Pre-Merger Financing [Member] | Series B Warrants [Member]      
Pre-Merger Financing [Abstract]      
Number of converted additional shares (in shares)   9,444  
Convertible Notes [Member]      
Convertible Notes with Related Parties [Abstract]      
Aggregate amount of convertible notes issue to board and officers | $     $ 700,000
Number of board members | BoardMember     4
Number of officers | Officer     2
Number of officers also a board member | BoardMember     1