Annual report pursuant to Section 13 and 15(d)

Merger, Contingent Value Rights Agreement (Details)

v3.23.1
Merger, Contingent Value Rights Agreement (Details)
12 Months Ended
Dec. 31, 2022
Milestone
Nov. 05, 2020
Milestone
Right
Contingent Value Rights Agreement [Abstract]    
Contingent value rights payment period 15 years  
Sum of cash consideration paid by a third party   75.00%
Parent IP deal period 10 years  
Number of milestones accrued 0 0
Number of potential milestones 0 0
Rexahn [Member]    
Contingent Value Rights Agreement [Abstract]    
Number of contingent value right received per common stock | Right   1
Rexahn [Member] | BioSense Global LLC [Member]    
Contingent Value Rights Agreement [Abstract]    
Percentage of payments received by Rexahn or its affiliates   90.00%
Rexahn [Member] | Zhejiang HaiChang Biotechnology Co., Ltd [Member]    
Contingent Value Rights Agreement [Abstract]    
Percentage of payments received by Rexahn or its affiliates   90.00%