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The number of securities purchase agreement for prefunded warrants.

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Per share price of pre-funded warrant.

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Exercise price per share or per unit of warrants or rights outstanding.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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Number of warrants or rights outstanding.

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- Definition

Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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The cash outflow for cost incurred directly with the issuance of an equity security.

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The cash inflow from the additional capital contribution to the entity.

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Number of shares authorized for issuance under share-based payment arrangement.

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Per share or per unit amount of equity securities issued.

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Number of new stock issued during the period.

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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Note 4 - Capital Stock (Details Textual)			6 Months Ended
Note 4 - Capital Stock (Details Textual)	Aug. 12, 2024 shares	Aug. 05, 2024 shares	Jun. 30, 2025 USD ($) $ / shares shares	Jun. 30, 2024 USD ($) $ / shares shares	Dec. 31, 2024 $ / shares shares	Dec. 23, 2024 $ / shares shares	Mar. 31, 2022 shares	Apr. 30, 2020 shares	Oct. 31, 2017 shares	Apr. 30, 2016 shares
Common Stock, Shares Authorized (in shares)			40,000,000		40,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share) \| $ / shares			$ 0.001		$ 0.001
Common Stock, Shares, Outstanding (in shares)			6,127,457		6,102,560
Proceeds from Issuance of Common Stock \| $			$ 0	$ 3,192,618
Common Stock, Shares, Issued (in shares)			6,127,457		6,102,560
Pre-funded Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)						882,761
Class of Pre-Warrant or Right, Price Per Share (in dollars per share) \| $ / shares						$ 23.789
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) \| $ / shares						$ 0.001
Class of Pre-Warrant or Right, Number, Securities Purchase Agreement (in shares)						882,761
Class of Pre-Warrant or Right, Maximum Beneficial Ownership Percentage						9.99%
Class of Warrant or Right, Outstanding (in shares)					882,761
Capital on Demand Sales Agreement [Member] \| JonesTrading Institutional Services LLC [Member]
Stock Issued During Period, Shares, New Issues (in shares)				509,061
Shares Issued, Price Per Share (in dollars per share) \| $ / shares				$ 6.45
Proceeds from Issuance of Common Stock \| $				$ 3,194,310
Payments of Stock Issuance Costs \| $				$ 81,932
Underwriting Agreement [Member]
Shares Issued, Price Per Share (in dollars per share) \| $ / shares						$ 23.79
Monopar Therapeutics Inc. 2016 Stock Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)	1,420,000	7,100,000		5,100,000			1,020,000	620,000	320,000	140,000
Common Stock, Shares, Outstanding (in shares)	3,520,427			17,601,827
Monopar Therapeutics Inc. 2016 Stock Incentive Plan [Member] \| Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	5	5