<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>139</ContextCount>
  <ElementCount>355</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>66</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>7</UnitCount>
  <MyReports>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>995200090 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>995200100 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/StatementCondensedConsolidatedBalanceSheets</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>995200105 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/StatementCondensedConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>995200200 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>995200300 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK, SHAREHOLDERS' EQUITY AND MEZZANINE EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/StatementCondensedConsolidatedStatementsOfConvertiblePreferredStockShareholdersEquityAndMezzanineEquity</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK, SHAREHOLDERS' EQUITY AND MEZZANINE EQUITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>995200305 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK, SHAREHOLDERS' EQUITY AND MEZZANINE EQUITY (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/StatementCondensedConsolidatedStatementsOfConvertiblePreferredStockShareholdersEquityAndMezzanineEquityParenthetical</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK, SHAREHOLDERS' EQUITY AND MEZZANINE EQUITY (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>995200400 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/StatementCondensedConsolidatedStatementsOfCashFlows</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>995210101 - Disclosure - NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureNatureOfBusinessAndSummaryOfSignificantAccountingPolicies</Role>
      <ShortName>NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>995210201 - Disclosure - DISCONTINUED OPERATIONS AND DIVESTITURES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureDiscontinuedOperationsAndDivestitures</Role>
      <ShortName>DISCONTINUED OPERATIONS AND DIVESTITURES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>995210301 - Disclosure - INVENTORIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureInventories</Role>
      <ShortName>INVENTORIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>995210401 - Disclosure - INTANGIBLE ASSETS, NET</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureIntangibleAssetsNet</Role>
      <ShortName>INTANGIBLE ASSETS, NET</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>995210501 - Disclosure - FAIR VALUE MEASUREMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureFairValueMeasurements</Role>
      <ShortName>FAIR VALUE MEASUREMENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>995210601 - Disclosure - EQUITY BASED COMPENSATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureEquityBasedCompensation</Role>
      <ShortName>EQUITY BASED COMPENSATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>995210701 - Disclosure - NOTES AND LOANS PAYABLE</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureNotesAndLoansPayable</Role>
      <ShortName>NOTES AND LOANS PAYABLE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>995210801 - Disclosure - REVENUE RECOGNITION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureRevenueRecognition</Role>
      <ShortName>REVENUE RECOGNITION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>995210901 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureSegmentAndGeographicInformation</Role>
      <ShortName>SEGMENT AND GEOGRAPHIC INFORMATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>995211001 - Disclosure - CAPITAL RAISES AND WARRANTS FOR COMMON STOCK</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureCapitalRaisesAndWarrantsForCommonStock</Role>
      <ShortName>CAPITAL RAISES AND WARRANTS FOR COMMON STOCK</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>995211101 - Disclosure - LOSS PER COMMON SHARE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureLossPerCommonShare</Role>
      <ShortName>LOSS PER COMMON SHARE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>995211201 - Disclosure - COMMITMENTS AND CONTINGENCIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureCommitmentsAndContingencies</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>995211301 - Disclosure - SUBSEQUENT EVENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureSubsequentEvents</Role>
      <ShortName>SUBSEQUENT EVENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>995410 - Disclosure - Pay vs Performance Disclosure</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/PvpDisclosure</Role>
      <ShortName>Pay vs Performance Disclosure</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.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>22</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>99920102 - Disclosure - NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureNatureOfBusinessAndSummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>99930103 - Disclosure - NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureNatureOfBusinessAndSummaryOfSignificantAccountingPoliciesTables</Role>
      <ShortName>NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureNatureOfBusinessAndSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>99930203 - Disclosure - DISCONTINUED OPERATIONS AND DIVESTITURES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureDiscontinuedOperationsAndDivestituresTables</Role>
      <ShortName>DISCONTINUED OPERATIONS AND DIVESTITURES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureDiscontinuedOperationsAndDivestitures</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>99930303 - Disclosure - INVENTORIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureInventoriesTables</Role>
      <ShortName>INVENTORIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureInventories</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>99930403 - Disclosure - INTANGIBLE ASSETS, NET (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureIntangibleAssetsNetTables</Role>
      <ShortName>INTANGIBLE ASSETS, NET (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureIntangibleAssetsNet</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>99930603 - Disclosure - EQUITY BASED COMPENSATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureEquityBasedCompensationTables</Role>
      <ShortName>EQUITY BASED COMPENSATION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureEquityBasedCompensation</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>99930703 - Disclosure - NOTES AND LOANS PAYABLE (Tables)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureNotesAndLoansPayableTables</Role>
      <ShortName>NOTES AND LOANS PAYABLE (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureNotesAndLoansPayable</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>99930803 - Disclosure - REVENUE RECOGNITION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureRevenueRecognitionTables</Role>
      <ShortName>REVENUE RECOGNITION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureRevenueRecognition</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>99930903 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureSegmentAndGeographicInformationTables</Role>
      <ShortName>SEGMENT AND GEOGRAPHIC INFORMATION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureSegmentAndGeographicInformation</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>99931003 - Disclosure - CAPITAL RAISES AND WARRANTS FOR COMMON STOCK (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureCapitalRaisesAndWarrantsForCommonStockTables</Role>
      <ShortName>CAPITAL RAISES AND WARRANTS FOR COMMON STOCK (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureCapitalRaisesAndWarrantsForCommonStock</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>99931103 - Disclosure - LOSS PER COMMON SHARE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureLossPerCommonShareTables</Role>
      <ShortName>LOSS PER COMMON SHARE (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureLossPerCommonShare</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>99931203 - Disclosure - COMMITMENTS AND CONTINGENCIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureCommitmentsAndContingenciesTables</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureCommitmentsAndContingencies</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>99940101 - Disclosure - NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureNatureOfBusinessAndSummaryOfSignificantAccountingPoliciesDetails</Role>
      <ShortName>NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureNatureOfBusinessAndSummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>99940102 - Disclosure - NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Reclassifications - Cash Flows (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureNatureOfBusinessAndSummaryOfSignificantAccountingPoliciesReclassificationsCashFlowsDetails</Role>
      <ShortName>NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Reclassifications - Cash Flows (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>99940201 - Disclosure - DISCONTINUED OPERATIONS AND DIVESTITURES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureDiscontinuedOperationsAndDivestituresDetails</Role>
      <ShortName>DISCONTINUED OPERATIONS AND DIVESTITURES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureDiscontinuedOperationsAndDivestituresTables</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>99940202 - Disclosure - DISCONTINUED OPERATIONS AND DIVESTITURES - Net loss from discontinued operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureDiscontinuedOperationsAndDivestituresNetLossFromDiscontinuedOperationsDetails</Role>
      <ShortName>DISCONTINUED OPERATIONS AND DIVESTITURES - Net loss from discontinued operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>99940203 - Disclosure - DISCONTINUED OPERATIONS AND DIVESTITURES - Cash flow information from discontinued operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureDiscontinuedOperationsAndDivestituresCashFlowInformationFromDiscontinuedOperationsDetails</Role>
      <ShortName>DISCONTINUED OPERATIONS AND DIVESTITURES - Cash flow information from discontinued operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>99940301 - Disclosure - INVENTORIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureInventoriesDetails</Role>
      <ShortName>INVENTORIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureInventoriesTables</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>99940401 - Disclosure - INTANGIBLE ASSETS, NET (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureIntangibleAssetsNetDetails</Role>
      <ShortName>INTANGIBLE ASSETS, NET (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureIntangibleAssetsNetTables</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>99940402 - Disclosure - INTANGIBLE ASSETS, NET - Aggregate intangible asset amortization expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureIntangibleAssetsNetAggregateIntangibleAssetAmortizationExpenseDetails</Role>
      <ShortName>INTANGIBLE ASSETS, NET - Aggregate intangible asset amortization expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>99940403 - Disclosure - INTANGIBLE ASSETS, NET - Estimated future intangible asset amortization expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureIntangibleAssetsNetEstimatedFutureIntangibleAssetAmortizationExpenseDetails</Role>
      <ShortName>INTANGIBLE ASSETS, NET - Estimated future intangible asset amortization expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>99940501 - Disclosure - FAIR VALUE MEASUREMENTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureFairValueMeasurementsDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureFairValueMeasurements</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>99940601 - Disclosure - EQUITY BASED COMPENSATION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureEquityBasedCompensationDetails</Role>
      <ShortName>EQUITY BASED COMPENSATION (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureEquityBasedCompensationTables</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>99940602 - Disclosure - EQUITY BASED COMPENSATION - Compensation expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureEquityBasedCompensationCompensationExpenseDetails</Role>
      <ShortName>EQUITY BASED COMPENSATION - Compensation expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>99940603 - Disclosure - EQUITY BASED COMPENSATION - RSUs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureEquityBasedCompensationRsusDetails</Role>
      <ShortName>EQUITY BASED COMPENSATION - RSUs (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>99940604 - Disclosure - EQUITY BASED COMPENSATION - Stock option activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureEquityBasedCompensationStockOptionActivityDetails</Role>
      <ShortName>EQUITY BASED COMPENSATION - Stock option activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>99940605 - Disclosure - EQUITY BASED COMPENSATION - Fair value assumptions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureEquityBasedCompensationFairValueAssumptionsDetails</Role>
      <ShortName>EQUITY BASED COMPENSATION - Fair value assumptions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>99940701 - Disclosure - NOTES AND LOANS PAYABLE (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureNotesAndLoansPayableDetails</Role>
      <ShortName>NOTES AND LOANS PAYABLE (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureNotesAndLoansPayableTables</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>99940702 - Disclosure - NOTES AND LOANS PAYABLE- Future principal payments (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureNotesAndLoansPayableFuturePrincipalPaymentsDetails</Role>
      <ShortName>NOTES AND LOANS PAYABLE- Future principal payments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>99940801 - Disclosure - REVENUE RECOGNITION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureRevenueRecognitionDetails</Role>
      <ShortName>REVENUE RECOGNITION (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureRevenueRecognitionTables</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>99940802 - Disclosure - REVENUE RECOGNITION - Net revenue by product line (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureRevenueRecognitionNetRevenueByProductLineDetails</Role>
      <ShortName>REVENUE RECOGNITION - Net revenue by product line (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>99940803 - Disclosure - REVENUE RECOGNITION - Concentration of risk (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureRevenueRecognitionConcentrationOfRiskDetails</Role>
      <ShortName>REVENUE RECOGNITION - Concentration of risk (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>99940901 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureSegmentAndGeographicInformationDetails</Role>
      <ShortName>SEGMENT AND GEOGRAPHIC INFORMATION (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureSegmentAndGeographicInformationTables</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>99940902 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION - Depreciation and amortization costs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureSegmentAndGeographicInformationDepreciationAndAmortizationCostsDetails</Role>
      <ShortName>SEGMENT AND GEOGRAPHIC INFORMATION - Depreciation and amortization costs (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>99941001 - Disclosure - CAPITAL RAISES AND WARRANTS FOR COMMON STOCK - Warrant activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureCapitalRaisesAndWarrantsForCommonStockWarrantActivityDetails</Role>
      <ShortName>CAPITAL RAISES AND WARRANTS FOR COMMON STOCK - Warrant activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>99941002 - Disclosure - CAPITAL RAISES AND WARRANTS FOR COMMON STOCK - Deemed Dividends (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureCapitalRaisesAndWarrantsForCommonStockDeemedDividendsDetails</Role>
      <ShortName>CAPITAL RAISES AND WARRANTS FOR COMMON STOCK - Deemed Dividends (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>99941003 - Disclosure - CAPITAL RAISES AND WARRANTS FOR COMMON STOCK - March 2026 Series B Convertible Preferred Stock Offering (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureCapitalRaisesAndWarrantsForCommonStockMarch2026SeriesBConvertiblePreferredStockOfferingDetails</Role>
      <ShortName>CAPITAL RAISES AND WARRANTS FOR COMMON STOCK - March 2026 Series B Convertible Preferred Stock Offering (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>99941004 - Disclosure - CAPITAL RAISES AND WARRANTS FOR COMMON STOCK - August 2025 Series A Convertible Preferred Stock Offering (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureCapitalRaisesAndWarrantsForCommonStockAugust2025SeriesConvertiblePreferredStockOfferingDetails</Role>
      <ShortName>CAPITAL RAISES AND WARRANTS FOR COMMON STOCK - August 2025 Series A Convertible Preferred Stock Offering (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>99941005 - Disclosure - CAPITAL RAISES AND WARRANTS FOR COMMON STOCK - Schedule of convertible preferred stock transaction activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureCapitalRaisesAndWarrantsForCommonStockScheduleOfConvertiblePreferredStockTransactionActivityDetails</Role>
      <ShortName>CAPITAL RAISES AND WARRANTS FOR COMMON STOCK - Schedule of convertible preferred stock transaction activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>99941006 - Disclosure - CAPITAL RAISES AND WARRANTS FOR COMMON STOCK - April 2025 Warrant Inducement &amp; Amendment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureCapitalRaisesAndWarrantsForCommonStockApril2025WarrantInducementAmendmentDetails</Role>
      <ShortName>CAPITAL RAISES AND WARRANTS FOR COMMON STOCK - April 2025 Warrant Inducement &amp; Amendment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>99941007 - Disclosure - CAPITAL RAISES AND WARRANTS FOR COMMON STOCK - Schedule of ATM Program (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureCapitalRaisesAndWarrantsForCommonStockScheduleOfAtmProgramDetails</Role>
      <ShortName>CAPITAL RAISES AND WARRANTS FOR COMMON STOCK - Schedule of ATM Program (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>99941101 - Disclosure - LOSS PER COMMON SHARE (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureLossPerCommonShareDetails</Role>
      <ShortName>LOSS PER COMMON SHARE (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureLossPerCommonShareTables</ParentRole>
      <Position>64</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>99941201 - Disclosure - COMMITMENTS AND CONTINGENCIES - Licenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureCommitmentsAndContingenciesLicensesDetails</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES - Licenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="xxii-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>99941301 - Disclosure - SUBSEQUENT EVENTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.xxiicentury.com/role/DisclosureSubsequentEventsDetails</Role>
      <ShortName>SUBSEQUENT EVENTS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.xxiicentury.com/role/DisclosureSubsequentEvents</ParentRole>
      <Position>66</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>xxii-20260331.xsd</File>
    <File>xxii-20260331_cal.xml</File>
    <File>xxii-20260331_def.xml</File>
    <File>xxii-20260331_lab.xml</File>
    <File>xxii-20260331_pre.xml</File>
    <File doctype="10-Q" isDefinitelyFs="true" isUsgaap="true" original="xxii-20260331x10q.htm">xxii-20260331x10q.htm</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="1">http://fasb.org/srt/2025</BaseTaxonomy>
    <BaseTaxonomy items="555">http://fasb.org/us-gaap/2025</BaseTaxonomy>
    <BaseTaxonomy items="29">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
    <BaseTaxonomy items="4">http://xbrl.sec.gov/ecd/2025</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
