Quarterly report pursuant to Section 13 or 15(d)

Merger Agreement and Pre-Merger Financing (Details)

v3.20.2
Merger Agreement and Pre-Merger Financing (Details)
 9 Months Ended
Jun. 29, 2020
USD ($)
item
Sep. 30, 2020
USD ($)
Dec. 31, 2019
USD ($)
Sep. 30, 2019
USD ($)
Dec. 31, 2018
USD ($)
Business Acquisition [Line Items]          
Cash and cash equivalents   $ 8,079,511 $ 9,219,547 $ 7,932,100 $ 8,744,301
Adjustment to Exchange Ration Formula $ 100,000        
Cash Requirement 0        
Termination Fee $ 750,000        
Contingent Value Rights, License, Term   15 years      
Contingent Value Rights, Percentage 90.00%        
Contingent Value Rights, IP, Percentage 75.00%        
Contingent Value Rights, IP, Term   10 years      
Pre-Merger Financing $ 21,150,000        
Pre-Merger Valuation $ 120,000,000        
Pre-Merger Financing Ownership Of Combined Company 15.00%        
Average Of Five Lowest Volume-Weighted Average Trading Prices 85.00%        
Cash At Closing $ 1,900,000        
Post-Merger [Member]          
Business Acquisition [Line Items]          
Number Of Board Members | item 7        
Rexahn [Member]          
Business Acquisition [Line Items]          
Share Ownership Percentage 14.30%        
Number Of Board Members | item 1        
Ocuphire [Member]          
Business Acquisition [Line Items]          
Share Ownership Percentage 85.70%        
Number Of Board Members | item 6        
0 Cash Balance [Member] | Rexahn [Member]          
Business Acquisition [Line Items]          
Share Ownership Percentage 13.10%        
0 Cash Balance [Member] | Ocuphire [Member]          
Business Acquisition [Line Items]          
Share Ownership Percentage 86.90%        
Minimum [Member] | Current Shareholders [Member]          
Business Acquisition [Line Items]          
Share Ownership Percentage 9.10%        
Minimum [Member] | Post-Merger [Member]          
Business Acquisition [Line Items]          
Cash and cash equivalents $ 3,200,000        
Estimated Cash Delivery Upon Closing 1,900,000        
Maximum [Member] | Post-Merger [Member]          
Business Acquisition [Line Items]          
Cash and cash equivalents 6,000,000        
Estimated Cash Delivery Upon Closing $ 2,400,000