Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v3.22.1
Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2021
Mar. 23, 2022
Jun. 30, 2021
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Period End Date Dec. 31, 2021    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Document Transition Report false    
Entity File Number 001-34079    
Entity Registrant Name Ocuphire Pharma, Inc.    
Entity Central Index Key 0001228627    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 11-3516358    
Entity Address, Address Line One 37000 Grand River Avenue, Suite 120    
Entity Address, City or Town Farmington Hills    
Entity Address, State or Province MI    
Entity Address, Postal Zip Code 48335    
City Area Code 248    
Local Phone Number 681-9815    
Title of 12(b) Security Common Stock, $0.0001 par value per share    
Trading Symbol OCUP    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag false    
Entity Shell Company false    
Entity Public Float     $ 83,840,460
Entity Common Stock, Shares Outstanding   18,989,817  
Auditor Name Ernst & Young LLP    
Auditor Location Detroit, Michigan    
Auditor Firm ID 42