Quarterly report pursuant to Section 13 or 15(d)

Note 9 - Subsequent Events (Details Textual)

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Note 9 - Subsequent Events (Details Textual) - Monopar Therapeutics Inc. 2016 Stock Incentive Plan [Member] - shares
Aug. 12, 2024
Aug. 05, 2024
Jun. 30, 2024
Mar. 31, 2022
Apr. 30, 2020
Oct. 31, 2017
Apr. 30, 2016
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)     5,100,000 5,100,000 3,100,000 1,600,000 700,000
Subsequent Event [Member]              
Stockholders' Equity, Reverse Stock Split 5 5          
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) 1,420,000 7,100,000