Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.1
Share-based Compensation, Stock Option Plan Activity (Details) - USD ($)
 3 Months Ended
Jan. 01, 2021
Mar. 31, 2021
Mar. 31, 2020
Feb. 22, 2021
Nov. 05, 2020
Ocuphire Stock Options [Abstract]          
Share based compensation   $ 494,000 $ 61,000    
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)   1,241,387      
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) 544,125        
Granted (in shares)   41,800 0    
Weighted average fair value per share of options vesting (in dollars per share)   $ 3.66 $ 0.87    
2020 Plan Evergreen Provision [Member] | Minimum [Member]          
Ocuphire Stock Options [Abstract]          
Vesting period   6 months      
2020 Plan Evergreen Provision [Member] | Maximum [Member]          
Ocuphire Stock Options [Abstract]          
Period of shares reserved under plan   10 years      
Vesting period   48 months      
Ocuphire Stock Options [Member] | 2020 Plan Evergreen Provision [Member]          
Ocuphire Stock Options [Abstract]          
Share based compensation   $ 446,000 $ 61,000    
Weighted average fair value per share of options vesting (in dollars per share)   $ 6.71