<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.22.2</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>71</ContextCount>
  <ElementCount>185</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>23</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>4</UnitCount>
  <MyReports>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>00000001 - Document - Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/Cover</Role>
      <ShortName>Cover</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>00000002 - Statement - CONSOLIDATED BALANCE SHEETS (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/ConsolidatedBalanceSheets</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>00000003 - Statement - CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/ConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>00000004 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/ConsolidatedStatementsOfOperations</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>00000005 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/ConsolidatedStatementsOfStockholdersEquity</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>00000006 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/ConsolidatedStatementsOfCashFlows</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>00000007 - Disclosure - NATURE OF OPERATIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/NatureOfOperations</Role>
      <ShortName>NATURE OF OPERATIONS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>00000008 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/SignificantAccountingPolicies</Role>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>00000009 - Disclosure - INVENTORY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/Inventory</Role>
      <ShortName>INVENTORY</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>00000010 - Disclosure - PROPERTY, PLANT AND EQUIPMENT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/PropertyPlantAndEquipment</Role>
      <ShortName>PROPERTY, PLANT AND EQUIPMENT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>00000011 - Disclosure - INTANGIBLE ASSETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/IntangibleAssets</Role>
      <ShortName>INTANGIBLE ASSETS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>00000012 - Disclosure - DEFERRED INCOME TAXES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/DeferredIncomeTaxes</Role>
      <ShortName>DEFERRED INCOME TAXES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>00000013 - Disclosure - BANK INDEBTEDNESS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/BankIndebtedness</Role>
      <ShortName>BANK INDEBTEDNESS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>00000014 - Disclosure - NOTES PAYABLE</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://jewettcameron.com/role/NotesPayable</Role>
      <ShortName>NOTES PAYABLE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>00000015 - Disclosure - CAPITAL STOCK</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/CapitalStock</Role>
      <ShortName>CAPITAL STOCK</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>00000016 - Disclosure - RESTRICTED SHARE PLAN</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/RestrictedSharePlan</Role>
      <ShortName>RESTRICTED SHARE PLAN</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>00000017 - Disclosure - PENSION AND PROFIT-SHARING PLANS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/PensionAndProfit-sharingPlans</Role>
      <ShortName>PENSION AND PROFIT-SHARING PLANS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>00000018 - Disclosure - SEGMENT INFORMATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/SegmentInformation</Role>
      <ShortName>SEGMENT INFORMATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>00000019 - Disclosure - RISKS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/Risks</Role>
      <ShortName>RISKS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>00000020 - Disclosure - SUPPLEMENTAL DISCLOSURE WITH RESPECT TO CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/SupplementalDisclosureWithRespectToCashFlows</Role>
      <ShortName>SUPPLEMENTAL DISCLOSURE WITH RESPECT TO CASH FLOWS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>00000021 - Disclosure - CONTINGENCY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/Contingency</Role>
      <ShortName>CONTINGENCY</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>00000022 - Disclosure - SUBSEQUENT EVENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/SubsequentEvents</Role>
      <ShortName>SUBSEQUENT EVENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>00000023 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/SignificantAccountingPoliciesPolicies</Role>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>00000024 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/SignificantAccountingPoliciesTables</Role>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://jewettcameron.com/role/SignificantAccountingPolicies</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>00000025 - Disclosure - INVENTORY (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/InventoryTables</Role>
      <ShortName>INVENTORY (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://jewettcameron.com/role/Inventory</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>00000026 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/PropertyPlantAndEquipmentTables</Role>
      <ShortName>PROPERTY, PLANT AND EQUIPMENT (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://jewettcameron.com/role/PropertyPlantAndEquipment</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>00000027 - Disclosure - INTANGIBLE ASSETS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/IntangibleAssetsTables</Role>
      <ShortName>INTANGIBLE ASSETS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://jewettcameron.com/role/IntangibleAssets</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>00000028 - Disclosure - SEGMENT INFORMATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/SegmentInformationTables</Role>
      <ShortName>SEGMENT INFORMATION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://jewettcameron.com/role/SegmentInformation</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>00000029 - Disclosure - SUPPLEMENTAL DISCLOSURE WITH RESPECT TO CASH FLOWS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/SupplementalDisclosureWithRespectToCashFlowsTables</Role>
      <ShortName>SUPPLEMENTAL DISCLOSURE WITH RESPECT TO CASH FLOWS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://jewettcameron.com/role/SupplementalDisclosureWithRespectToCashFlows</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>00000030 - Disclosure - NATURE OF OPERATIONS (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/NatureOfOperationsDetailsNarrative</Role>
      <ShortName>NATURE OF OPERATIONS (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://jewettcameron.com/role/NatureOfOperations</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>00000031 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES: Earnings Per Share: Schedule of property plant and equipment useful life (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/SignificantAccountingPoliciesEarningsPerShareScheduleOfPropertyPlantAndEquipmentUsefulLifeDetails</Role>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES: Earnings Per Share: Schedule of property plant and equipment useful life (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>00000032 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES: Earnings Per Share: Schedule of Earnings Per Share, Basic and Diluted (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/SignificantAccountingPoliciesEarningsPerShareScheduleOfEarningsPerShareBasicAndDilutedDetails</Role>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES: Earnings Per Share: Schedule of Earnings Per Share, Basic and Diluted (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>32</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>00000033 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES: Financial Instruments: Fair Value, Option, Quantitative Disclosures (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/SignificantAccountingPoliciesFinancialInstrumentsFairValueOptionQuantitativeDisclosuresDetails</Role>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES: Financial Instruments: Fair Value, Option, Quantitative Disclosures (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>33</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>00000034 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES: Financial Instruments: Fair Value, Assets Measured on Recurring Basis (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/SignificantAccountingPoliciesFinancialInstrumentsFairValueAssetsMeasuredOnRecurringBasisDetails</Role>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES: Financial Instruments: Fair Value, Assets Measured on Recurring Basis (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>34</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>00000035 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/SignificantAccountingPoliciesDetailsNarrative</Role>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://jewettcameron.com/role/SignificantAccountingPoliciesTables</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>00000036 - Disclosure - INVENTORY: Schedule of Inventory, Current (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/InventoryScheduleOfInventoryCurrentDetails</Role>
      <ShortName>INVENTORY: Schedule of Inventory, Current (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>00000037 - Disclosure - PROPERTY, PLANT AND EQUIPMENT: Schedule of property, plant, and equipment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails</Role>
      <ShortName>PROPERTY, PLANT AND EQUIPMENT: Schedule of property, plant, and equipment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>00000038 - Disclosure - INTANGIBLE ASSETS: Schedule of Finite-Lived Intangible Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/IntangibleAssetsScheduleOfFinite-livedIntangibleAssetsDetails</Role>
      <ShortName>INTANGIBLE ASSETS: Schedule of Finite-Lived Intangible Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>00000039 - Disclosure - DEFERRED INCOME TAXES (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/DeferredIncomeTaxesDetailsNarrative</Role>
      <ShortName>DEFERRED INCOME TAXES (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://jewettcameron.com/role/DeferredIncomeTaxes</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>00000040 - Disclosure - BANK INDEBTEDNESS (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/BankIndebtednessDetailsNarrative</Role>
      <ShortName>BANK INDEBTEDNESS (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://jewettcameron.com/role/BankIndebtedness</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>00000041 - Disclosure - NOTES PAYABLE (Details Narrative)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://jewettcameron.com/role/NotesPayableDetailsNarrative</Role>
      <ShortName>NOTES PAYABLE (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://jewettcameron.com/role/NotesPayable</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>00000042 - Disclosure - RESTRICTED SHARE PLAN (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/RestrictedSharePlanDetailsNarrative</Role>
      <ShortName>RESTRICTED SHARE PLAN (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://jewettcameron.com/role/RestrictedSharePlan</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>00000043 - Disclosure - PENSION AND PROFIT-SHARING PLANS (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/PensionAndProfit-sharingPlansDetailsNarrative</Role>
      <ShortName>PENSION AND PROFIT-SHARING PLANS (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://jewettcameron.com/role/PensionAndProfit-sharingPlans</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>00000044 - Disclosure - SEGMENT INFORMATION: Schedule of Segment Reporting Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/SegmentInformationScheduleOfSegmentReportingInformationDetails</Role>
      <ShortName>SEGMENT INFORMATION: Schedule of Segment Reporting Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>00000045 - Disclosure - SEGMENT INFORMATION: Sales in excess of ten percent of total sales (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/SegmentInformationSalesInExcessOfTenPercentOfTotalSalesDetails</Role>
      <ShortName>SEGMENT INFORMATION: Sales in excess of ten percent of total sales (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>00000046 - Disclosure - SEGMENT INFORMATION: Schedule of sales by country (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/SegmentInformationScheduleOfSalesByCountryDetails</Role>
      <ShortName>SEGMENT INFORMATION: Schedule of sales by country (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>00000047 - Disclosure - RISKS (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/RisksDetailsNarrative</Role>
      <ShortName>RISKS (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://jewettcameron.com/role/Risks</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>00000048 - Disclosure - SUPPLEMENTAL DISCLOSURE WITH RESPECT TO CASH FLOWS: Schedule of Cash Flow, Supplemental Disclosures (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/SupplementalDisclosureWithRespectToCashFlowsScheduleOfCashFlowSupplementalDisclosuresDetails</Role>
      <ShortName>SUPPLEMENTAL DISCLOSURE WITH RESPECT TO CASH FLOWS: Schedule of Cash Flow, Supplemental Disclosures (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>00000049 - Disclosure - CONTINGENCY (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/ContingencyDetailsNarrative</Role>
      <ShortName>CONTINGENCY (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://jewettcameron.com/role/Contingency</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="jctcf_10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>00000050 - Disclosure - SUBSEQUENT EVENTS (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://jewettcameron.com/role/SubsequentEventsDetailsNarrative</Role>
      <ShortName>SUBSEQUENT EVENTS (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://jewettcameron.com/role/SubsequentEvents</ParentRole>
      <Position>50</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="10-Q" original="jctcf_10q.htm">jctcf_10q.htm</File>
    <File>jctcf-20220531.xsd</File>
    <File>jctcf-20220531_cal.xml</File>
    <File>jctcf-20220531_def.xml</File>
    <File>jctcf-20220531_lab.xml</File>
    <File>jctcf-20220531_pre.xml</File>
    <File>jctcf_ex31z1.htm</File>
    <File>jctcf_ex31z2.htm</File>
    <File>jctcf_ex32z1.htm</File>
    <File>jctcf_ex32z2.htm</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="393">http://fasb.org/us-gaap/2022</BaseTaxonomy>
    <BaseTaxonomy items="31">http://xbrl.sec.gov/dei/2022</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
