<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.24.1.1.u2</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>133</ContextCount>
  <ElementCount>222</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>55</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>7</UnitCount>
  <MyReports>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>000 - Document - Document And Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-document-and-entity-information</Role>
      <ShortName>Document And Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>001 - Statement - Condensed Consolidated Balance Sheets (Current Period Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-condensed-consolidated-balance-sheets-current-period-unaudited</Role>
      <ShortName>Condensed Consolidated Balance Sheets (Current Period Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>002 - Statement - Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-condensed-consolidated-balance-sheets-current-period-unaudited-parentheticals</Role>
      <ShortName>Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>003 - Statement - Consolidated Statements of Operations (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-consolidated-statements-of-operations-unaudited</Role>
      <ShortName>Consolidated Statements of Operations (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>004 - Statement - Consolidated Consolidated Statements of Changes in Stockholders' Equity (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-consolidated-consolidated-statements-of-changes-in-stockholders-equity-unaudited</Role>
      <ShortName>Consolidated Consolidated Statements of Changes in Stockholders' Equity (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>005 - Statement - Consolidated Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-consolidated-consolidated-statements-of-changes-in-stockholders-equity-unaudited-parentheticals</Role>
      <ShortName>Consolidated Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parentheticals)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>006 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-condensed-consolidated-statements-of-cash-flows-unaudited</Role>
      <ShortName>Condensed Consolidated Statements of Cash Flows (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>007 - Disclosure - Note 1 - The Company and Description of Business</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-1-the-company-and-description-of-business</Role>
      <ShortName>Note 1 - The Company and Description of Business</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>008 - Disclosure - Note 2 - Basis of Presentation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-2-basis-of-presentation</Role>
      <ShortName>Note 2 - Basis of Presentation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>009 - Disclosure - Note 3 - Going Concern and Management's Plans</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-3-going-concern-and-managements-plans-</Role>
      <ShortName>Note 3 - Going Concern and Management's Plans</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>010 - Disclosure - Note 4 - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-4-summary-of-significant-accounting-policies</Role>
      <ShortName>Note 4 - Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>011 - Disclosure - Note 5 - Fair Value Measurements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-5-fair-value-measurements</Role>
      <ShortName>Note 5 - Fair Value Measurements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>012 - Disclosure - Note 6 - Loans Payable</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-6-loans-payable</Role>
      <ShortName>Note 6 - Loans Payable</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>013 - Disclosure - Note 7 - Other Current Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-7-other-current-liabilities-</Role>
      <ShortName>Note 7 - Other Current Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>014 - Disclosure - Note 8 - Restructured Debt Liability</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-8-restructured-debt-liability</Role>
      <ShortName>Note 8 - Restructured Debt Liability</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>015 - Disclosure - Note 9 - Stockholders' Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-9-stockholders-equity</Role>
      <ShortName>Note 9 - Stockholders' Equity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>016 - Disclosure - Note 10 - Stock-based Compensation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-10-stockbased-compensation</Role>
      <ShortName>Note 10 - Stock-based Compensation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>017 - Disclosure - Note 11 - Licensing and Research Funding Agreements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-11-licensing-and-research-funding-agreements</Role>
      <ShortName>Note 11 - Licensing and Research Funding Agreements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>018 - Disclosure - Note 12 - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-12-income-taxes</Role>
      <ShortName>Note 12 - Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>019 - Disclosure - Note 13 - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-13-subsequent-events</Role>
      <ShortName>Note 13 - Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>995445 - Disclosure - Insider Trading Arrangements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements</Role>
      <ShortName>Insider Trading Arrangements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>995466 - Disclosure - Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-significant-accounting-policies-policies</Role>
      <ShortName>Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.windtreetx.com/20240331/role/statement-note-4-summary-of-significant-accounting-policies</ParentRole>
      <Position>22</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>995467 - Disclosure - Note 4 - Summary of Significant Accounting Policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-4-summary-of-significant-accounting-policies-tables</Role>
      <ShortName>Note 4 - Summary of Significant Accounting Policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.windtreetx.com/20240331/role/statement-note-4-summary-of-significant-accounting-policies</ParentRole>
      <Position>23</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>995468 - Disclosure - Note 5 - Fair Value Measurements (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-5-fair-value-measurements-tables</Role>
      <ShortName>Note 5 - Fair Value Measurements (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.windtreetx.com/20240331/role/statement-note-5-fair-value-measurements</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>995469 - Disclosure - Note 10 - Stock-based Compensation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-10-stockbased-compensation-tables</Role>
      <ShortName>Note 10 - Stock-based Compensation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.windtreetx.com/20240331/role/statement-note-10-stockbased-compensation</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>995470 - Disclosure - Note 2 - Basis of Presentation (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-2-basis-of-presentation-details-textual</Role>
      <ShortName>Note 2 - Basis of Presentation (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.windtreetx.com/20240331/role/statement-note-2-basis-of-presentation</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>995471 - Disclosure - Note 3 - Going Concern and Management's Plans (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-3-going-concern-and-managements-plans-details-textual</Role>
      <ShortName>Note 3 - Going Concern and Management's Plans (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.windtreetx.com/20240331/role/statement-note-3-going-concern-and-managements-plans-</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>995472 - Disclosure - Note 4 - Summary of Significant Accounting Policies (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-4-summary-of-significant-accounting-policies-details-textual</Role>
      <ShortName>Note 4 - Summary of Significant Accounting Policies (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.windtreetx.com/20240331/role/statement-note-4-summary-of-significant-accounting-policies-tables</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>995473 - Disclosure - Note 4 - Summary of Significant Accounting Policies - Intangible Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-4-summary-of-significant-accounting-policies-intangible-assets-details</Role>
      <ShortName>Note 4 - Summary of Significant Accounting Policies - Intangible Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>995474 - Disclosure - Note 5 - Fair Value Measurements (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-5-fair-value-measurements-details-textual</Role>
      <ShortName>Note 5 - Fair Value Measurements (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.windtreetx.com/20240331/role/statement-note-5-fair-value-measurements-tables</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>995475 - Disclosure - Note 5 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-5-fair-value-measurements-assets-and-liabilities-measured-at-fair-value-on-a-recurring-basis-details</Role>
      <ShortName>Note 5 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>995476 - Disclosure - Note 6 - Loans Payable (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-6-loans-payable-details-textual</Role>
      <ShortName>Note 6 - Loans Payable (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.windtreetx.com/20240331/role/statement-note-6-loans-payable</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>995477 - Disclosure - Note 7 - Other Current Liabilities (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-7-other-current-liabilities-details-textual</Role>
      <ShortName>Note 7 - Other Current Liabilities (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.windtreetx.com/20240331/role/statement-note-7-other-current-liabilities-</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>995478 - Disclosure - Note 8 - Restructured Debt Liability (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-8-restructured-debt-liability-details-textual</Role>
      <ShortName>Note 8 - Restructured Debt Liability (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.windtreetx.com/20240331/role/statement-note-8-restructured-debt-liability</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>995479 - Disclosure - Note 9 - Stockholders' Equity (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-9-stockholders-equity-details-textual</Role>
      <ShortName>Note 9 - Stockholders' Equity (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.windtreetx.com/20240331/role/statement-note-9-stockholders-equity</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>995480 - Disclosure - Note 10 - Stock-based Compensation (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-10-stockbased-compensation-details-textual</Role>
      <ShortName>Note 10 - Stock-based Compensation (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.windtreetx.com/20240331/role/statement-note-10-stockbased-compensation-tables</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>995481 - Disclosure - Note 10 - Stock-based Compensation - Summary Stock Option Activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-10-stockbased-compensation-summary-stock-option-activity-details</Role>
      <ShortName>Note 10 - Stock-based Compensation - Summary Stock Option Activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>995482 - Disclosure - Note 10 - Stock-based Compensation - Restricted Stock Units (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-10-stockbased-compensation-restricted-stock-units-details</Role>
      <ShortName>Note 10 - Stock-based Compensation - Restricted Stock Units (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>995483 - Disclosure - Note 10 - Stock-based Compensation - Stock-Based Compensation Expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-10-stockbased-compensation-stockbased-compensation-expense-details</Role>
      <ShortName>Note 10 - Stock-based Compensation - Stock-Based Compensation Expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>995484 - Disclosure - Note 11 - Licensing and Research Funding Agreements (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-11-licensing-and-research-funding-agreements-details-textual</Role>
      <ShortName>Note 11 - Licensing and Research Funding Agreements (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.windtreetx.com/20240331/role/statement-note-11-licensing-and-research-funding-agreements</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>995485 - Disclosure - Note 12 - Income Taxes (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-12-income-taxes-details-textual</Role>
      <ShortName>Note 12 - Income Taxes (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.windtreetx.com/20240331/role/statement-note-12-income-taxes</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="wint20240331_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>995486 - Disclosure - Note 13 - Subsequent Events (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.windtreetx.com/20240331/role/statement-note-13-subsequent-events-details-textual</Role>
      <ShortName>Note 13 - Subsequent Events (Details Textual)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.windtreetx.com/20240331/role/statement-note-13-subsequent-events</ParentRole>
      <Position>42</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <Logs>
    <Log type="Warning">[ix-0514-Hidden-Fact-Eligible-For-Transform] WARN: 37 fact(s) appearing in ix:hidden were eligible for transformation: dei:EntityRegistrantName, ecd:NonRule10b51ArrAdoptedFlag, ecd:NonRule10b51ArrTrmntdFlag, ecd:Rule10b51ArrAdoptedFlag, ecd:Rule10b51ArrTrmntdFlag, us-gaap:AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts, us-gaap:CommonStockParOrStatedValuePerShare, us-gaap:CommonStockSharesAuthorized, us-gaap:CommonStockSharesIssued, us-gaap:CommonStockSharesOutstanding, us-gaap:Goodwill, us-gaap:NumberOfReportingUnits, us-gaap:PreferredStockParOrStatedValuePerShare, us-gaap:PreferredStockSharesAuthorized, us-gaap:PreferredStockSharesIssued, us-gaap:PreferredStockSharesOutstanding, us-gaap:PropertyPlantAndEquipmentUsefulLife, us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1, us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage, us-gaap:TreasuryStockCommonShares, us-gaap:WarrantsAndRightsOutstandingTerm, wint:AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCostsExerciseOfWarrantsCost, wint:LiabilityforContingentMilestonePaymentNoncurrent, wint:PaymentsForPerformanceOfCollaborativeAgreement, wint:RoyaltiesToBeReceivedPeriodAfterFirstCommercialSale -  wint20240331_10q.htm 8, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48</Log>
  </Logs>
  <InputFiles>
    <File>wint-20240331.xsd</File>
    <File>wint-20240331_cal.xml</File>
    <File>wint-20240331_def.xml</File>
    <File>wint-20240331_lab.xml</File>
    <File>wint-20240331_pre.xml</File>
    <File doctype="10-Q" isDefinitelyFs="true" isUsgaap="true" original="wint20240331_10q.htm">wint20240331_10q.htm</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="378">http://fasb.org/us-gaap/2024</BaseTaxonomy>
    <BaseTaxonomy items="29">http://xbrl.sec.gov/dei/2024</BaseTaxonomy>
    <BaseTaxonomy items="5">http://xbrl.sec.gov/ecd/2024</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
