Quarterly report [Sections 13 or 15(d)]

Note 5 - Stock Incentive Plan 1 (Details Textual)

v3.26.1
Note 5 - Stock Incentive Plan 1 (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Aug. 05, 2024
Mar. 31, 2022
Apr. 30, 2020
Mar. 31, 2025
Mar. 31, 2026
Dec. 31, 2025
Oct. 31, 2017
Apr. 30, 2016
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares) [1]         62,228      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value         $ 16,500 $ 3,600    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price (in dollars per share)         $ 32.94      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested, Outstanding, Weighted Average Exercise Price (in dollars per share)         25.87      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expected to Vest, Outstanding, Weighted Average Exercise Price (in dollars per share)         $ 45.27      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount         $ 17,800      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)         3 years      
Share-Based Payment Arrangement, Expense, Tax Benefit         $ 0      
Vesting Monthly Over One Year [Member]                
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)         2,000      
Vesting 6/48ths on Six-months and 1/48th After [Member]                
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)         60,228      
Restricted Stock Units (RSUs) [Member]                
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) [2]         0      
Monopar Therapeutics Inc. 2016 Stock Incentive Plan [Member]                
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)   1,020,000 620,000       320,000 140,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized (in shares)   400,000 300,000          
Monopar Therapeutics Inc. 2016 Stock Incentive Plan [Member] | Share-Based Payment Arrangement, Option [Member]                
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)           10 years    
Monopar Therapeutics Inc. 2016 Amended Stock Incentive Plan [Member]                
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) 1,420,000              
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized (in shares) 400,000     400,000        
Monopar Therapeutics Inc. 2016 Amended Stock Incentive Plan [Member] | Share-Based Payment Arrangement, Option [Member]                
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)         62,228      
Monopar Therapeutics Inc. 2016 Amended Stock Incentive Plan [Member] | Share-Based Payment Arrangement, Option [Member] | Minimum [Member]                
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Exercise Price (in dollars per share)         $ 53.29      
Monopar Therapeutics Inc. 2016 Amended Stock Incentive Plan [Member] | Share-Based Payment Arrangement, Option [Member] | Maximum [Member]                
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Exercise Price (in dollars per share)         $ 70      
[1] 62,228 options vest as follows: options to purchase 2,000 shares of the Company’s common stock vest monthly over one year; options to purchase 60,228 shares of the Company’s common stock vest 6/48ths on the six-month anniversary of the vesting commencement date and 1/48th per month thereafter.
[2] There were no restricted stock units granted during the three months ended March 31, 2026.