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Share-based Compensation, Stock Awards (Details)
3 Months Ended
Mar. 31, 2021
USD ($)
Member
shares
Mar. 31, 2020
USD ($)
Stock Awards [Abstract]    
Share based compensation $ 494,000 $ 61,000
Ocuphire Stock Awards [Member]    
Stock Awards [Abstract]    
Granted stock awards for services performed (in shares) | shares 4,474  
Number of board members, stock awards granted for services | Member 2  
Share based compensation $ 26,000