Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation, Stock Option Plan Activity (Details)

v3.23.3
Stock-based Compensation, Stock Option Plan Activity (Details) - USD ($)
 3 Months Ended 9 Months Ended
Jan. 01, 2023
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Feb. 22, 2021
Nov. 05, 2020
Dec. 31, 2019
Ocuphire Stock Options [Abstract]                  
Stock based compensation   $ 573,000 $ 493,000 $ 2,799,000 $ 1,383,000        
2020 Equity Incentive Plan [Member]                  
Ocuphire Stock Options [Abstract]                  
Common stock reserved for issuance (in shares)               1,000,000  
2020 Equity Incentive Plan [Member] | Maximum [Member]                  
Ocuphire Stock Options [Abstract]                  
Common stock reserved for issuance (in shares)               70,325  
2018 Equity Incentive Plan [Member]                  
Ocuphire Stock Options [Abstract]                  
Common stock reserved for issuance (in shares)   0   0         1,175,000
Inducement Plan [Member]                  
Ocuphire Stock Options [Abstract]                  
Common stock reserved for issuance (in shares)             325,258    
2020 Plan Evergreen Provision [Member]                  
Ocuphire Stock Options [Abstract]                  
Percentage of common stock shares outstanding       5.00%          
Number of shares added (in shares) 1,043,066                
2020 Plan Evergreen Provision [Member] | Minimum [Member]                  
Ocuphire Stock Options [Abstract]                  
Vesting period       5 months 10 months        
2020 Plan Evergreen Provision [Member] | Maximum [Member]                  
Ocuphire Stock Options [Abstract]                  
Period of shares reserved under plan       10 years          
Vesting period       48 months 48 months        
Ocuphire Stock Options [Member] | 2020 Plan Evergreen Provision [Member]                  
Ocuphire Stock Options [Abstract]                  
Granted (in shares)   30,000 167,000 793,578 893,305        
Stock based compensation   $ 400,000 $ 394,000 $ 2,087,000 $ 1,229,000        
Stock option exercised (in shares)   0   0 24,309        
Aggregate intrinsic value     $ 59,000   $ 59,000        
Number of shares outstanding (in shares)   3,469,389   3,469,389   2,936,044      
Weighted average fair value per share of options granted (in dollars per share)   $ 3.3 $ 1.65 $ 2.85 $ 2.06        
Ocuphire Stock Options [Member] | 2020 Plan Evergreen Provision [Member] | Former Chief Executive Officer [Member]                  
Ocuphire Stock Options [Abstract]                  
Stock based compensation       $ 400,000