<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>211</ContextCount>
  <ElementCount>303</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>73</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>8</UnitCount>
  <MyReports>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>00090 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>00100 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/StatementCondensedConsolidatedBalanceSheets</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>00105 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/StatementCondensedConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>00200 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/StatementCondensedConsolidatedStatementsOfComprehensiveLoss</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>00205 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/StatementCondensedConsolidatedStatementsOfComprehensiveLossParenthetical</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>00300 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/StatementCondensedConsolidatedStatementsOfChangesInShareholdersEquity</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>00400 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/StatementCondensedConsolidatedStatementsOfCashFlows</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>10101 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureOrganizationAndBasisOfPresentation</Role>
      <ShortName>ORGANIZATION AND BASIS OF PRESENTATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>10201 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureSummaryOfSignificantAccountingPolicies</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>10301 - Disclosure - ACCOUNTS RECEIVABLE, NET</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureAccountsReceivableNet</Role>
      <ShortName>ACCOUNTS RECEIVABLE, NET</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>10401 - Disclosure - PREPAYMENTS AND OTHER CURRENT ASSETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosurePrepaymentsAndOtherCurrentAssets</Role>
      <ShortName>PREPAYMENTS AND OTHER CURRENT ASSETS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>10501 - Disclosure - PROPERTY, EQUIPMENT AND SOFTWARE, NET</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosurePropertyEquipmentAndSoftwareNet</Role>
      <ShortName>PROPERTY, EQUIPMENT AND SOFTWARE, NET</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>10601 - Disclosure - ACCRUALS AND OTHER CURRENT LIABILITIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureAccrualsAndOtherCurrentLiabilities</Role>
      <ShortName>ACCRUALS AND OTHER CURRENT LIABILITIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>10701 - Disclosure - BORROWINGS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureBorrowings</Role>
      <ShortName>BORROWINGS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>10801 - Disclosure - SEGMENT INFORMATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureSegmentInformation</Role>
      <ShortName>SEGMENT INFORMATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>10901 - Disclosure - CONTINGENTLY REDEEMABLE CONVERTIBLE PREFERRED SHARES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureContingentlyRedeemableConvertiblePreferredShares</Role>
      <ShortName>CONTINGENTLY REDEEMABLE CONVERTIBLE PREFERRED SHARES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>11001 - Disclosure - SHARE-BASED COMPENSATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureShareBasedCompensation</Role>
      <ShortName>SHARE-BASED COMPENSATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>11101 - Disclosure - WARRANT LIABILITIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureWarrantLiabilities</Role>
      <ShortName>WARRANT LIABILITIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>11201 - Disclosure - COLLABORATION ARRANGEMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureCollaborationArrangements</Role>
      <ShortName>COLLABORATION ARRANGEMENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>11301 - Disclosure - INCOME TAX BENFIT (EXPENSE)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureIncomeTaxBenfitExpense</Role>
      <ShortName>INCOME TAX BENFIT (EXPENSE)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>11401 - Disclosure - NET LOSS PER SHARE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureNetLossPerShare</Role>
      <ShortName>NET LOSS PER SHARE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>11501 - Disclosure - RELATED PARTY TRANSACTIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureRelatedPartyTransactions</Role>
      <ShortName>RELATED PARTY TRANSACTIONS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>11601 - Disclosure - LEASES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureLeases</Role>
      <ShortName>LEASES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>11701 - Disclosure - COMMITMENTS AND CONTINGENCIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureCommitmentsAndContingencies</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>11801 - Disclosure - ORDINARY SHARES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureOrdinaryShares</Role>
      <ShortName>ORDINARY SHARES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>20202 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>30103 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureOrganizationAndBasisOfPresentationTables</Role>
      <ShortName>ORGANIZATION AND BASIS OF PRESENTATION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureOrganizationAndBasisOfPresentation</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>30203 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>30303 - Disclosure - ACCOUNTS RECEIVABLE, NET (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureAccountsReceivableNetTables</Role>
      <ShortName>ACCOUNTS RECEIVABLE, NET (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureAccountsReceivableNet</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>30403 - Disclosure - PREPAYMENTS AND OTHER CURRENT ASSETS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosurePrepaymentsAndOtherCurrentAssetsTables</Role>
      <ShortName>PREPAYMENTS AND OTHER CURRENT ASSETS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosurePrepaymentsAndOtherCurrentAssets</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>30503 - Disclosure - PROPERTY, EQUIPMENT AND SOFTWARE, NET (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosurePropertyEquipmentAndSoftwareNetTables</Role>
      <ShortName>PROPERTY, EQUIPMENT AND SOFTWARE, NET (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosurePropertyEquipmentAndSoftwareNet</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>30603 - Disclosure - ACCRUALS AND OTHER CURRENT LIABILITIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureAccrualsAndOtherCurrentLiabilitiesTables</Role>
      <ShortName>ACCRUALS AND OTHER CURRENT LIABILITIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureAccrualsAndOtherCurrentLiabilities</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>30703 - Disclosure - BORROWINGS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureBorrowingsTables</Role>
      <ShortName>BORROWINGS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureBorrowings</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>30803 - Disclosure - SEGMENT INFORMATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureSegmentInformationTables</Role>
      <ShortName>SEGMENT INFORMATION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureSegmentInformation</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>31003 - Disclosure - SHARE-BASED COMPENSATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureShareBasedCompensationTables</Role>
      <ShortName>SHARE-BASED COMPENSATION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureShareBasedCompensation</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>31103 - Disclosure - WARRANT LIABILITIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureWarrantLiabilitiesTables</Role>
      <ShortName>WARRANT LIABILITIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureWarrantLiabilities</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>31303 - Disclosure - INCOME TAX BENFIT (EXPENSE) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureIncomeTaxBenfitExpenseTables</Role>
      <ShortName>INCOME TAX BENFIT (EXPENSE) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureIncomeTaxBenfitExpense</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>31403 - Disclosure - NET LOSS PER SHARE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureNetLossPerShareTables</Role>
      <ShortName>NET LOSS PER SHARE (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureNetLossPerShare</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>31503 - Disclosure - RELATED PARTY TRANSACTIONS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureRelatedPartyTransactionsTables</Role>
      <ShortName>RELATED PARTY TRANSACTIONS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureRelatedPartyTransactions</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>31603 - Disclosure - LEASES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureLeasesTables</Role>
      <ShortName>LEASES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureLeases</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>40101 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureOrganizationAndBasisOfPresentationDetails</Role>
      <ShortName>ORGANIZATION AND BASIS OF PRESENTATION (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureOrganizationAndBasisOfPresentationTables</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>40201 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fair value measurements (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureSummaryOfSignificantAccountingPoliciesFairValueMeasurementsDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fair value measurements (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>40202 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property, equipment and software (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPropertyEquipmentAndSoftwareDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property, equipment and software (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>40203 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Short-term investments, Impairment of long lived assets and Employee defined contribution plan (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureSummaryOfSignificantAccountingPoliciesShortTermInvestmentsImpairmentOfLongLivedAssetsAndEmployeeDefinedContributionPlanDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Short-term investments, Impairment of long lived assets and Employee defined contribution plan (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>40204 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Concentration of credit risk (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureSummaryOfSignificantAccountingPoliciesConcentrationOfCreditRiskDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Concentration of credit risk (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>40205 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Government subsidies and Foreign currency exchange rate risk (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureSummaryOfSignificantAccountingPoliciesGovernmentSubsidiesAndForeignCurrencyExchangeRateRiskDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Government subsidies and Foreign currency exchange rate risk (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>40301 - Disclosure - ACCOUNTS RECEIVABLE, NET (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureAccountsReceivableNetDetails</Role>
      <ShortName>ACCOUNTS RECEIVABLE, NET (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureAccountsReceivableNetTables</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>40401 - Disclosure - PREPAYMENTS AND OTHER CURRENT ASSETS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosurePrepaymentsAndOtherCurrentAssetsDetails</Role>
      <ShortName>PREPAYMENTS AND OTHER CURRENT ASSETS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosurePrepaymentsAndOtherCurrentAssetsTables</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>40501 - Disclosure - PROPERTY, EQUIPMENT AND SOFTWARE, NET (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosurePropertyEquipmentAndSoftwareNetDetails</Role>
      <ShortName>PROPERTY, EQUIPMENT AND SOFTWARE, NET (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosurePropertyEquipmentAndSoftwareNetTables</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>40601 - Disclosure - ACCRUALS AND OTHER CURRENT LIABILITIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureAccrualsAndOtherCurrentLiabilitiesDetails</Role>
      <ShortName>ACCRUALS AND OTHER CURRENT LIABILITIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureAccrualsAndOtherCurrentLiabilitiesTables</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>40701 - Disclosure - BORROWINGS - Components (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureBorrowingsComponentsDetails</Role>
      <ShortName>BORROWINGS - Components (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>40702 - Disclosure - BORROWINGS - Short term borrowings (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureBorrowingsShortTermBorrowingsDetails</Role>
      <ShortName>BORROWINGS - Short term borrowings (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>40703 - Disclosure - BORROWINGS - Long term borrowings (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureBorrowingsLongTermBorrowingsDetails</Role>
      <ShortName>BORROWINGS - Long term borrowings (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>40704 - Disclosure - BORROWINGS - Future maturities of short term borrowings and long term borrowings (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureBorrowingsFutureMaturitiesOfShortTermBorrowingsAndLongTermBorrowingsDetails</Role>
      <ShortName>BORROWINGS - Future maturities of short term borrowings and long term borrowings (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>40801 - Disclosure - SEGMENT INFORMATION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureSegmentInformationDetails</Role>
      <ShortName>SEGMENT INFORMATION (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureSegmentInformationTables</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>40802 - Disclosure - SEGMENT INFORMATION - Research and development (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureSegmentInformationResearchAndDevelopmentDetails</Role>
      <ShortName>SEGMENT INFORMATION - Research and development (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>40901 - Disclosure - CONTINGENTLY REDEEMABLE CONVERTIBLE PREFERRED SHARES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureContingentlyRedeemableConvertiblePreferredSharesDetails</Role>
      <ShortName>CONTINGENTLY REDEEMABLE CONVERTIBLE PREFERRED SHARES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureContingentlyRedeemableConvertiblePreferredShares</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>41001 - Disclosure - SHARE-BASED COMPENSATION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureShareBasedCompensationDetails</Role>
      <ShortName>SHARE-BASED COMPENSATION (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureShareBasedCompensationTables</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>41002 - Disclosure - SHARE-BASED COMPENSATION - Share Option Activities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureShareBasedCompensationShareOptionActivitiesDetails</Role>
      <ShortName>SHARE-BASED COMPENSATION - Share Option Activities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>41003 - Disclosure - SHARE-BASED COMPENSATION - Share Option Activities - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureShareBasedCompensationShareOptionActivitiesNarrativeDetails</Role>
      <ShortName>SHARE-BASED COMPENSATION - Share Option Activities - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>41005 - Disclosure - SHARE-BASED COMPENSATION - RSU Activity - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureShareBasedCompensationRsuActivityNarrativeDetails</Role>
      <ShortName>SHARE-BASED COMPENSATION - RSU Activity - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>41006 - Disclosure - SHARE-BASED COMPENSATION - Fair Value Of Share Options (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureShareBasedCompensationFairValueOfShareOptionsDetails</Role>
      <ShortName>SHARE-BASED COMPENSATION - Fair Value Of Share Options (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>41007 - Disclosure - SHARE-BASED COMPENSATION - Share based compensation expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureShareBasedCompensationShareBasedCompensationExpensesDetails</Role>
      <ShortName>SHARE-BASED COMPENSATION - Share based compensation expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>41101 - Disclosure - WARRANT LIABILITIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureWarrantLiabilitiesDetails</Role>
      <ShortName>WARRANT LIABILITIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureWarrantLiabilitiesTables</ParentRole>
      <Position>64</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>41102 - Disclosure - WARRANT LIABILITIES - Warrant Liability Activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureWarrantLiabilitiesWarrantLiabilityActivityDetails</Role>
      <ShortName>WARRANT LIABILITIES - Warrant Liability Activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>41103 - Disclosure - WARRANT LIABILITIES - Significant unobservable inputs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureWarrantLiabilitiesSignificantUnobservableInputsDetails</Role>
      <ShortName>WARRANT LIABILITIES - Significant unobservable inputs (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>41201 - Disclosure - COLLABORATION ARRANGEMENTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureCollaborationArrangementsDetails</Role>
      <ShortName>COLLABORATION ARRANGEMENTS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureCollaborationArrangements</ParentRole>
      <Position>67</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>41301 - Disclosure - INCOME TAX BENFIT (EXPENSE) - Income tax benefit (expense) and effective income tax rate (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureIncomeTaxBenfitExpenseIncomeTaxBenefitExpenseAndEffectiveIncomeTaxRateDetails</Role>
      <ShortName>INCOME TAX BENFIT (EXPENSE) - Income tax benefit (expense) and effective income tax rate (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureIncomeTaxBenfitExpenseTables</ParentRole>
      <Position>68</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>41401 - Disclosure - NET LOSS PER SHARE - Schedule of basic and diluted net loss per share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureNetLossPerShareScheduleOfBasicAndDilutedNetLossPerShareDetails</Role>
      <ShortName>NET LOSS PER SHARE - Schedule of basic and diluted net loss per share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>69</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>41402 - Disclosure - NET LOSS PER SHARE - Anti-dilutive Securities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureNetLossPerShareAntiDilutiveSecuritiesDetails</Role>
      <ShortName>NET LOSS PER SHARE - Anti-dilutive Securities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>41501 - Disclosure - RELATED PARTY TRANSACTIONS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureRelatedPartyTransactionsDetails</Role>
      <ShortName>RELATED PARTY TRANSACTIONS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureRelatedPartyTransactionsTables</ParentRole>
      <Position>71</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>41601 - Disclosure - LEASES - Information related to operating leases (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureLeasesInformationRelatedToOperatingLeasesDetails</Role>
      <ShortName>LEASES - Information related to operating leases (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>41602 - Disclosure - LEASES - Information related to operating lease activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureLeasesInformationRelatedToOperatingLeaseActivityDetails</Role>
      <ShortName>LEASES - Information related to operating lease activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>41603 - Disclosure - LEASES - Maturities of lease liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureLeasesMaturitiesOfLeaseLiabilitiesDetails</Role>
      <ShortName>LEASES - Maturities of lease liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="adag-20260812x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>41801 - Disclosure - ORDINARY SHARES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.adagene.com/role/DisclosureOrdinarySharesDetails</Role>
      <ShortName>ORDINARY SHARES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.adagene.com/role/DisclosureOrdinaryShares</ParentRole>
      <Position>75</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>adag-20260812.xsd</File>
    <File>adag-20260812_cal.xml</File>
    <File>adag-20260812_def.xml</File>
    <File>adag-20260812_lab.xml</File>
    <File>adag-20260812_pre.xml</File>
    <File doctype="6-K" isDefinitelyFs="true" isUsgaap="true" original="adag-20260812x6k.htm">adag-20260812x6k.htm</File>
    <File doctype="6-K" isDefinitelyFs="true" isUsgaap="true" original="adag-20260812xex99d2.htm">adag-20260812xex99d2.htm</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="653">http://fasb.org/us-gaap/2025</BaseTaxonomy>
    <BaseTaxonomy items="10">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
