Annual report pursuant to Section 13 and 15(d)

Document And Entity Information

Document And Entity Information - USD ($)
12 Months Ended
Dec. 31, 2023
Mar. 08, 2024
Jun. 30, 2023
Document Information [Line Items]      
Entity Central Index Key 0001645469    
Entity Registrant Name Monopar Therapeutics Inc.    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2023    
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Document Transition Report false    
Entity File Number 001-39070    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 32-0463781    
Entity Address, Address Line One 1000 Skokie Blvd., Suite 350    
Entity Address, City or Town Wilmette    
Entity Address, State or Province IL    
Entity Address, Postal Zip Code 60091    
City Area Code 847    
Local Phone Number 388-0349    
Title of 12(b) Security Common stock, $0.001 par value    
Trading Symbol MNPR    
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 true    
Entity Ex Transition Period true    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 4,608,643
Entity Common Stock, Shares Outstanding   17,454,925  
Auditor Firm ID 207    
Auditor Name BPM LLP    
Auditor Location Walnut Creek, California