Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Mar. 23, 2022
Jun. 30, 2021
Document and Entity Information      
Document Type 10-K    
Document Period End Date Dec. 31, 2021    
Document Annual Report true    
Document Transition Report false    
Entity Registrant Name TITAN PHARMACEUTICALS, INC.    
Entity File Number 001-13341    
Entity Incorporation, State or Country Code DE    
Entity Address, Address Line One 400 Oyster Point Blvd.,     
Entity Address, Address Line Two Suite 505,    
Entity Address, City or Town South San Francisco    
Entity Address, State or Province CA    
Entity Tax Identification Number 94-3171940    
Entity Address, Postal Zip Code 94080    
City Area Code 650    
Local Phone Number 244-4990    
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    
Entity Shell Company false    
Title of 12(b) Security Common Stock, par value $0.001    
Trading Symbol TTNP    
Security Exchange Name NASDAQ    
Entity Common Stock, Shares Outstanding   12,039,421  
Entity Public Float     $ 25.6
Entity Central Index Key 0000910267    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Amendment Flag false    
Auditor Name WithumSmith+Brown, PC    
Auditor Firm ID 100    
Auditor Location San Francisco, California