<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>215</ContextCount>
  <ElementCount>346</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>60</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>12</UnitCount>
  <MyReports>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>00090 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>00100 - Statement - Consolidated Statements of Financial Position</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/StatementConsolidatedStatementsOfFinancialPosition</Role>
      <ShortName>Consolidated Statements of Financial Position</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>00200 - Statement - Consolidated Statements of Operations and Comprehensive Loss</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/StatementConsolidatedStatementsOfOperationsAndComprehensiveLoss</Role>
      <ShortName>Consolidated Statements of Operations and Comprehensive Loss</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>00300 - Statement - Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/StatementConsolidatedStatementsOfCashFlows</Role>
      <ShortName>Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>00400 - Statement - Consolidated Statements of Changes in Shareholders' Deficit</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/StatementConsolidatedStatementsOfChangesInShareholdersDeficit</Role>
      <ShortName>Consolidated Statements of Changes in Shareholders' Deficit</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>10101 - Disclosure - NATURE OF OPERATIONS AND GOING CONCERN</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureNatureOfOperationsAndGoingConcern</Role>
      <ShortName>NATURE OF OPERATIONS AND GOING CONCERN</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>10201 - Disclosure - BASIS OF PRESENTATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureBasisOfPresentation</Role>
      <ShortName>BASIS OF PRESENTATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>10301 - Disclosure - MATERIAL ACCOUNTING POLICIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureMaterialAccountingPolicies</Role>
      <ShortName>MATERIAL ACCOUNTING POLICIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>10401 - Disclosure - AMOUNTS RECEIVABLE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureAmountsReceivable</Role>
      <ShortName>AMOUNTS RECEIVABLE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>10501 - Disclosure - PROPERTY, PLANT, AND EQUIPMENT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosurePropertyPlantAndEquipment</Role>
      <ShortName>PROPERTY, PLANT, AND EQUIPMENT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>10601 - Disclosure - MILLING - COST OF SALES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureMillingCostOfSales</Role>
      <ShortName>MILLING - COST OF SALES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>10701 - Disclosure - MINERAL INTERESTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureMineralInterests</Role>
      <ShortName>MINERAL INTERESTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>10801 - Disclosure - MARKETABLE SECURITIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureMarketableSecurities</Role>
      <ShortName>MARKETABLE SECURITIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>10901 - Disclosure - RESTRICTED CASH</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureRestrictedCash</Role>
      <ShortName>RESTRICTED CASH</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>11001 - Disclosure - SECURED CONVERTIBLE DEBENTURE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureSecuredConvertibleDebenture</Role>
      <ShortName>SECURED CONVERTIBLE DEBENTURE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>11101 - Disclosure - ASSET RETIREMENT OBLIGATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureAssetRetirementObligation</Role>
      <ShortName>ASSET RETIREMENT OBLIGATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>11201 - Disclosure - FINANCE COSTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureFinanceCosts</Role>
      <ShortName>FINANCE COSTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>11301 - Disclosure - SHARE CAPITAL AND RESERVES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureShareCapitalAndReserves</Role>
      <ShortName>SHARE CAPITAL AND RESERVES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>11401 - Disclosure - SHARE-BASED PAYMENT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureShareBasedPayment</Role>
      <ShortName>SHARE-BASED PAYMENT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>11501 - Disclosure - MILLING REVENUE AND OTHER INCOME</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureMillingRevenueAndOtherIncome</Role>
      <ShortName>MILLING REVENUE AND OTHER INCOME</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>11601 - Disclosure - RELATED PARTY TRANSACTIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureRelatedPartyTransactions</Role>
      <ShortName>RELATED PARTY TRANSACTIONS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>11701 - Disclosure - FINANCIAL AND CAPITAL RISK MANAGEMENT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureFinancialAndCapitalRiskManagement</Role>
      <ShortName>FINANCIAL AND CAPITAL RISK MANAGEMENT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>11801 - Disclosure - INCOME TAXES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureIncomeTaxes</Role>
      <ShortName>INCOME TAXES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>11901 - Disclosure - CHANGES IN LIABILITIES FROM FINANCING ACTIVITIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureChangesInLiabilitiesFromFinancingActivities</Role>
      <ShortName>CHANGES IN LIABILITIES FROM FINANCING ACTIVITIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>12001 - Disclosure - SUBSEQUENT EVENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureSubsequentEvents</Role>
      <ShortName>SUBSEQUENT EVENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>20302 - Disclosure - MATERIAL ACCOUNTING POLICIES (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureMaterialAccountingPoliciesPolicies</Role>
      <ShortName>MATERIAL ACCOUNTING POLICIES (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>30303 - Disclosure - MATERIAL ACCOUNTING POLICIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureMaterialAccountingPoliciesTables</Role>
      <ShortName>MATERIAL ACCOUNTING POLICIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureMaterialAccountingPolicies</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>30403 - Disclosure - AMOUNTS RECEIVABLE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureAmountsReceivableTables</Role>
      <ShortName>AMOUNTS RECEIVABLE (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureAmountsReceivable</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>30503 - Disclosure - PROPERTY, PLANT, AND EQUIPMENT (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosurePropertyPlantAndEquipmentTables</Role>
      <ShortName>PROPERTY, PLANT, AND EQUIPMENT (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosurePropertyPlantAndEquipment</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>30603 - Disclosure - MILLING - COST OF SALES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureMillingCostOfSalesTables</Role>
      <ShortName>MILLING - COST OF SALES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureMillingCostOfSales</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>30703 - Disclosure - MINERAL INTERESTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureMineralInterestsTables</Role>
      <ShortName>MINERAL INTERESTS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureMineralInterests</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>31003 - Disclosure - SECURED CONVERTIBLE DEBENTURE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureSecuredConvertibleDebentureTables</Role>
      <ShortName>SECURED CONVERTIBLE DEBENTURE (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureSecuredConvertibleDebenture</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>31103 - Disclosure - ASSET RETIREMENT OBLIGATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureAssetRetirementObligationTables</Role>
      <ShortName>ASSET RETIREMENT OBLIGATION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureAssetRetirementObligation</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>31203 - Disclosure - FINANCE COSTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureFinanceCostsTables</Role>
      <ShortName>FINANCE COSTS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureFinanceCosts</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>31303 - Disclosure - SHARE CAPITAL AND RESERVES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureShareCapitalAndReservesTables</Role>
      <ShortName>SHARE CAPITAL AND RESERVES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureShareCapitalAndReserves</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>31403 - Disclosure - SHARE-BASED PAYMENT (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureShareBasedPaymentTables</Role>
      <ShortName>SHARE-BASED PAYMENT (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureShareBasedPayment</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>31603 - Disclosure - RELATED PARTY TRANSACTIONS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureRelatedPartyTransactionsTables</Role>
      <ShortName>RELATED PARTY TRANSACTIONS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureRelatedPartyTransactions</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>31703 - Disclosure - FINANCIAL AND CAPITAL RISK MANAGEMENT (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureFinancialAndCapitalRiskManagementTables</Role>
      <ShortName>FINANCIAL AND CAPITAL RISK MANAGEMENT (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureFinancialAndCapitalRiskManagement</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>31803 - Disclosure - INCOME TAXES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureIncomeTaxesTables</Role>
      <ShortName>INCOME TAXES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureIncomeTaxes</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>31903 - Disclosure - CHANGES IN LIABILITIES FROM FINANCING ACTIVITIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureChangesInLiabilitiesFromFinancingActivitiesTables</Role>
      <ShortName>CHANGES IN LIABILITIES FROM FINANCING ACTIVITIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureChangesInLiabilitiesFromFinancingActivities</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>40101 - Disclosure - NATURE OF OPERATIONS AND GOING CONCERN (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureNatureOfOperationsAndGoingConcernDetails</Role>
      <ShortName>NATURE OF OPERATIONS AND GOING CONCERN (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureNatureOfOperationsAndGoingConcern</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>40301 - Disclosure - MATERIAL ACCOUNTING POLICIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureMaterialAccountingPoliciesDetails</Role>
      <ShortName>MATERIAL ACCOUNTING POLICIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureMaterialAccountingPoliciesTables</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>40401 - Disclosure - AMOUNTS RECEIVABLE (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureAmountsReceivableDetails</Role>
      <ShortName>AMOUNTS RECEIVABLE (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureAmountsReceivableTables</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>40501 - Disclosure - PROPERTY, PLANT, AND EQUIPMENT (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosurePropertyPlantAndEquipmentDetails</Role>
      <ShortName>PROPERTY, PLANT, AND EQUIPMENT (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosurePropertyPlantAndEquipmentTables</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>40601 - Disclosure - MILLING - COST OF SALES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureMillingCostOfSalesDetails</Role>
      <ShortName>MILLING - COST OF SALES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureMillingCostOfSalesTables</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>40701 - Disclosure - MINERAL INTERESTS - General (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureMineralInterestsGeneralDetails</Role>
      <ShortName>MINERAL INTERESTS - General (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>40702 - Disclosure - MINERAL INTERESTS - Group of claims (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureMineralInterestsGroupOfClaimsDetails</Role>
      <ShortName>MINERAL INTERESTS - Group of claims (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>40703 - Disclosure - MINERAL INTERESTS - Exploration costs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureMineralInterestsExplorationCostsDetails</Role>
      <ShortName>MINERAL INTERESTS - Exploration costs (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>40704 - Disclosure - MINERAL INTERESTS - Dominion creek property (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureMineralInterestsDominionCreekPropertyDetails</Role>
      <ShortName>MINERAL INTERESTS - Dominion creek property (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>40705 - Disclosure - MINERAL INTERESTS - Stripping costs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureMineralInterestsStrippingCostsDetails</Role>
      <ShortName>MINERAL INTERESTS - Stripping costs (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>40801 - Disclosure - MARKETABLE SECURITIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureMarketableSecuritiesDetails</Role>
      <ShortName>MARKETABLE SECURITIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureMarketableSecurities</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>40901 - Disclosure - RESTRICTED CASH (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureRestrictedCashDetails</Role>
      <ShortName>RESTRICTED CASH (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureRestrictedCash</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>41001 - Disclosure - SECURED CONVERTIBLE DEBENTURE (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureSecuredConvertibleDebentureDetails</Role>
      <ShortName>SECURED CONVERTIBLE DEBENTURE (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureSecuredConvertibleDebentureTables</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>41101 - Disclosure - ASSET RETIREMENT OBLIGATION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureAssetRetirementObligationDetails</Role>
      <ShortName>ASSET RETIREMENT OBLIGATION (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureAssetRetirementObligationTables</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>41201 - Disclosure - FINANCE COSTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureFinanceCostsDetails</Role>
      <ShortName>FINANCE COSTS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureFinanceCostsTables</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>41301 - Disclosure - SHARE CAPITAL AND RESERVES - Schedule of Flow-Through Premium Liability (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureShareCapitalAndReservesScheduleOfFlowThroughPremiumLiabilityDetails</Role>
      <ShortName>SHARE CAPITAL AND RESERVES - Schedule of Flow-Through Premium Liability (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>41302 - Disclosure - SHARE CAPITAL AND RESERVES - Schedule of Share Purchase Warrants (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureShareCapitalAndReservesScheduleOfSharePurchaseWarrantsDetails</Role>
      <ShortName>SHARE CAPITAL AND RESERVES - Schedule of Share Purchase Warrants (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>41303 - Disclosure - SHARE CAPITAL AND RESERVES - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureShareCapitalAndReservesNarrativeDetails</Role>
      <ShortName>SHARE CAPITAL AND RESERVES - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>41401 - Disclosure - SHARE-BASED PAYMENT (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureShareBasedPaymentDetails</Role>
      <ShortName>SHARE-BASED PAYMENT (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureShareBasedPaymentTables</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>41402 - Disclosure - SHARE-BASED PAYMENT - Weighted average assumptions of stock option (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureShareBasedPaymentWeightedAverageAssumptionsOfStockOptionDetails</Role>
      <ShortName>SHARE-BASED PAYMENT - Weighted average assumptions of stock option (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>41403 - Disclosure - SHARE-BASED PAYMENT - Summary of changes in stock options (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureShareBasedPaymentSummaryOfChangesInStockOptionsDetails</Role>
      <ShortName>SHARE-BASED PAYMENT - Summary of changes in stock options (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>41404 - Disclosure - SHARE-BASED PAYMENT - Exercise price range of stock options (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureShareBasedPaymentExercisePriceRangeOfStockOptionsDetails</Role>
      <ShortName>SHARE-BASED PAYMENT - Exercise price range of stock options (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>41405 - Disclosure - SHARE-BASED PAYMENT - Restricted Shares Units (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureShareBasedPaymentRestrictedSharesUnitsDetails</Role>
      <ShortName>SHARE-BASED PAYMENT - Restricted Shares Units (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>41501 - Disclosure - MILLING REVENUE AND OTHER INCOME (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureMillingRevenueAndOtherIncomeDetails</Role>
      <ShortName>MILLING REVENUE AND OTHER INCOME (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureMillingRevenueAndOtherIncome</ParentRole>
      <Position>64</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>41601 - Disclosure - RELATED PARTY TRANSACTIONS - Key management compensation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureRelatedPartyTransactionsKeyManagementCompensationDetails</Role>
      <ShortName>RELATED PARTY TRANSACTIONS - Key management compensation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>41602 - Disclosure - RELATED PARTY TRANSACTIONS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureRelatedPartyTransactionsDetails</Role>
      <ShortName>RELATED PARTY TRANSACTIONS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureRelatedPartyTransactionsTables</ParentRole>
      <Position>66</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>41701 - Disclosure - FINANCIAL AND CAPITAL RISK MANAGEMENT - Credit risk (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureFinancialAndCapitalRiskManagementCreditRiskDetails</Role>
      <ShortName>FINANCIAL AND CAPITAL RISK MANAGEMENT - Credit risk (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>41702 - Disclosure - FINANCIAL AND CAPITAL RISK MANAGEMENT - Liquidity risk (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureFinancialAndCapitalRiskManagementLiquidityRiskDetails</Role>
      <ShortName>FINANCIAL AND CAPITAL RISK MANAGEMENT - Liquidity risk (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>41801 - Disclosure - INCOME TAXES - Reconciliation of income taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureIncomeTaxesReconciliationOfIncomeTaxesDetails</Role>
      <ShortName>INCOME TAXES - Reconciliation of income taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>69</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>41802 - Disclosure - INCOME TAXES - Deferred tax Assets and liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureIncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails</Role>
      <ShortName>INCOME TAXES - Deferred tax Assets and liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>41803 - Disclosure - INCOME TAXES - Temporary differences, unused tax credits and unused tax losses not been included on the consolidated statement of financial position (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureIncomeTaxesTemporaryDifferencesUnusedTaxCreditsAndUnusedTaxLossesNotBeenIncludedOnConsolidatedStatementOfFinancialPositionDetails</Role>
      <ShortName>INCOME TAXES - Temporary differences, unused tax credits and unused tax losses not been included on the consolidated statement of financial position (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>41901 - Disclosure - CHANGES IN LIABILITIES FROM FINANCING ACTIVITIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureChangesInLiabilitiesFromFinancingActivitiesDetails</Role>
      <ShortName>CHANGES IN LIABILITIES FROM FINANCING ACTIVITIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureChangesInLiabilitiesFromFinancingActivitiesTables</ParentRole>
      <Position>72</Position>
    </Report>
    <Report instance="nicm-20251231x40f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>42001 - Disclosure - SUBSEQUENT EVENTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nicolamining.com/role/DisclosureSubsequentEventsDetails</Role>
      <ShortName>SUBSEQUENT EVENTS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://nicolamining.com/role/DisclosureSubsequentEvents</ParentRole>
      <Position>73</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>nicm-20251231.xsd</File>
    <File>nicm-20251231_cal.xml</File>
    <File>nicm-20251231_def.xml</File>
    <File>nicm-20251231_lab.xml</File>
    <File>nicm-20251231_pre.xml</File>
    <File doctype="40-F" isDefinitelyFs="true" isIfrs="true" original="nicm-20251231x40f.htm">nicm-20251231x40f.htm</File>
    <File doctype="40-F" isDefinitelyFs="true" isIfrs="true" original="nicm-20251231xex99d2.htm">nicm-20251231xex99d2.htm</File>
  </InputFiles>
  <SupplementalFiles>
    <File>nicm-20251231xex99d2001.jpg</File>
    <File>nicm-20251231xex99d2002.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="42">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
    <BaseTaxonomy items="505">https://xbrl.ifrs.org/taxonomy/2025-03-27/ifrs-full</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>