<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.21.2</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>258</ContextCount>
  <ElementCount>408</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>58</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>4</UnitCount>
  <MyReports>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>000 - Document - Document And Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/DocumentAndEntityInformation</Role>
      <ShortName>Document And Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>001 - Statement - Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ConsolidatedBalanceSheet</Role>
      <ShortName>Balance Sheets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>002 - Statement - Balance Sheets (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ConsolidatedBalanceSheet_Parentheticals</Role>
      <ShortName>Balance Sheets (Parentheticals)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>003 - Statement - Statements of Operations (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ConsolidatedIncomeStatement</Role>
      <ShortName>Statements of Operations (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>004 - Statement - Statements of Comprehensive Income (Loss) (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ConsolidatedComprehensiveIncome</Role>
      <ShortName>Statements of Comprehensive Income (Loss) (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>005 - Statement - Statements of Stockholders' Equity (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ShareholdersEquityType2or3</Role>
      <ShortName>Statements of Stockholders' Equity (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>006 - Statement - Statements of Stockholders' Equity (Unaudited) (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ShareholdersEquityType2or3_Parentheticals</Role>
      <ShortName>Statements of Stockholders' Equity (Unaudited) (Parentheticals)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>007 - Statement - Statements of Cash Flows (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ConsolidatedCashFlow</Role>
      <ShortName>Statements of Cash Flows (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>008 - Disclosure - Business Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/BusinessOperations</Role>
      <ShortName>Business Operations</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>009 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/SummaryofSignificantAccountingPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>010 - Disclosure - Cash, Cash Equivalents and Short-Term Investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/CashCashEquivalentsandShortTermInvestments</Role>
      <ShortName>Cash, Cash Equivalents and Short-Term Investments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>011 - Disclosure - Trade Accounts Receivable, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/TradeAccountsReceivableNet</Role>
      <ShortName>Trade Accounts Receivable, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>012 - Disclosure - Inventory</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/Inventory</Role>
      <ShortName>Inventory</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>013 - Disclosure - Prepaid Expenses and Other Current Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/PrepaidExpensesandOtherCurrentAssets</Role>
      <ShortName>Prepaid Expenses and Other Current Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>014 - Disclosure - Property, Plant and Equipment, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/PropertyPlantandEquipmentNet</Role>
      <ShortName>Property, Plant and Equipment, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>015 - Disclosure - Intangible Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/IntangibleAssets</Role>
      <ShortName>Intangible Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>016 - Disclosure - Accounts Payable and Accrued Expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/AccountsPayableandAccruedExpenses</Role>
      <ShortName>Accounts Payable and Accrued Expenses</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>017 - Disclosure - Bank Debt</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/BankDebt</Role>
      <ShortName>Bank Debt</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>018 - Disclosure - Contingent Liabilities and Commitments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ContingentLiabilitiesandCommitments</Role>
      <ShortName>Contingent Liabilities and Commitments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>019 - Disclosure - Operating Lease</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/OperatingLease</Role>
      <ShortName>Operating Lease</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>020 - Disclosure - Stockholders' Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/StockholdersEquity</Role>
      <ShortName>Stockholders' Equity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>021 - Disclosure - Revenue</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/Revenue</Role>
      <ShortName>Revenue</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>022 - Disclosure - Other Expenses, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/OtherExpensesNet</Role>
      <ShortName>Other Expenses, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>023 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/IncomeTaxes</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>024 - Disclosure - Segment Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/SegmentInformation</Role>
      <ShortName>Segment Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>025 - Disclosure - Related Party Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/RelatedPartyTransactions</Role>
      <ShortName>Related Party Transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>026 - Disclosure - Employee Benefits</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/EmployeeBenefits</Role>
      <ShortName>Employee Benefits</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>027 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/SubsequentEvents</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>028 - Disclosure - Accounting Policies, by Policy (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/AccountingPoliciesByPolicy</Role>
      <ShortName>Accounting Policies, by Policy (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://immucell.com/role/SummaryofSignificantAccountingPolicies</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>029 - Disclosure - Summary of Significant Accounting Policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/SummaryofSignificantAccountingPoliciesTables</Role>
      <ShortName>Summary of Significant Accounting Policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://immucell.com/role/SummaryofSignificantAccountingPolicies</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>030 - Disclosure - Cash, Cash Equivalents and Short-Term Investments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/CashCashEquivalentsandShortTermInvestmentsTables</Role>
      <ShortName>Cash, Cash Equivalents and Short-Term Investments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://immucell.com/role/CashCashEquivalentsandShortTermInvestments</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>031 - Disclosure - Inventory (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/InventoryTables</Role>
      <ShortName>Inventory (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://immucell.com/role/Inventory</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>032 - Disclosure - Prepaid Expenses and Other Current Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/PrepaidExpensesandOtherCurrentAssetsTables</Role>
      <ShortName>Prepaid Expenses and Other Current Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://immucell.com/role/PrepaidExpensesandOtherCurrentAssets</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>033 - Disclosure - Property, Plant and Equipment, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/PropertyPlantandEquipmentNetTables</Role>
      <ShortName>Property, Plant and Equipment, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://immucell.com/role/PropertyPlantandEquipmentNet</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>034 - Disclosure - Intangible Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/IntangibleAssetsTables</Role>
      <ShortName>Intangible Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://immucell.com/role/IntangibleAssets</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>035 - Disclosure - Accounts Payable and Accrued Expenses (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/AccountsPayableandAccruedExpensesTables</Role>
      <ShortName>Accounts Payable and Accrued Expenses (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://immucell.com/role/AccountsPayableandAccruedExpenses</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>036 - Disclosure - Bank Debt (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/BankDebtTables</Role>
      <ShortName>Bank Debt (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://immucell.com/role/BankDebt</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>037 - Disclosure - Operating Lease (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/OperatingLeaseTables</Role>
      <ShortName>Operating Lease (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://immucell.com/role/OperatingLease</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>038 - Disclosure - Stockholders' Equity (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/StockholdersEquityTables</Role>
      <ShortName>Stockholders' Equity (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://immucell.com/role/StockholdersEquity</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>039 - Disclosure - Revenue (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/RevenueTables</Role>
      <ShortName>Revenue (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://immucell.com/role/Revenue</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>040 - Disclosure - Other Expenses, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/OtherExpensesNetTables</Role>
      <ShortName>Other Expenses, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://immucell.com/role/OtherExpensesNet</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>041 - Disclosure - Summary of Significant Accounting Policies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/SummaryofSignificantAccountingPoliciesDetails</Role>
      <ShortName>Summary of Significant Accounting Policies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/SummaryofSignificantAccountingPoliciesTables</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>042 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of financial assets measured at fair value on nonrecurring basis</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleoffinancialassetsmeasuredatfairvalueonnonrecurringbasisTable</Role>
      <ShortName>Summary of Significant Accounting Policies (Details) - Schedule of financial assets measured at fair value on nonrecurring basis</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/SummaryofSignificantAccountingPoliciesTables</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>043 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of sales to significant customers</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleofsalestosignificantcustomersTable</Role>
      <ShortName>Summary of Significant Accounting Policies (Details) - Schedule of sales to significant customers</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/SummaryofSignificantAccountingPoliciesTables</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>044 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of accounts receivable due from significant customers</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleofaccountsreceivableduefromsignificantcustomersTable</Role>
      <ShortName>Summary of Significant Accounting Policies (Details) - Schedule of accounts receivable due from significant customers</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/SummaryofSignificantAccountingPoliciesTables</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>045 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of net income (loss) per common share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleofnetincomelosspercommonshareTable</Role>
      <ShortName>Summary of Significant Accounting Policies (Details) - Schedule of net income (loss) per common share</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/SummaryofSignificantAccountingPoliciesTables</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>046 - Disclosure - Cash, Cash Equivalents and Short-Term Investments (Details) - Schedule of cash, cash equivalents and short-term investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleofcashcashequivalentsandshortterminvestmentsTable</Role>
      <ShortName>Cash, Cash Equivalents and Short-Term Investments (Details) - Schedule of cash, cash equivalents and short-term investments</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/CashCashEquivalentsandShortTermInvestmentsTables</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>047 - Disclosure - Trade Accounts Receivable, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/TradeAccountsReceivableNetDetails</Role>
      <ShortName>Trade Accounts Receivable, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/TradeAccountsReceivableNet</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>048 - Disclosure - Inventory (Details) - Schedule of inventory</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleofinventoryTable</Role>
      <ShortName>Inventory (Details) - Schedule of inventory</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/InventoryTables</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>049 - Disclosure - Prepaid Expenses and Other Current Assets (Details) - Schedule of prepaid expenses and other current assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleofprepaidexpensesandothercurrentassetsTable</Role>
      <ShortName>Prepaid Expenses and Other Current Assets (Details) - Schedule of prepaid expenses and other current assets</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/PrepaidExpensesandOtherCurrentAssetsTables</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>050 - Disclosure - Property, Plant and Equipment, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/PropertyPlantandEquipmentNetDetails</Role>
      <ShortName>Property, Plant and Equipment, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/PropertyPlantandEquipmentNetTables</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>051 - Disclosure - Property, Plant and Equipment, Net (Details) - Schedule of property, plant and equipment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleofpropertyplantandequipmentTable</Role>
      <ShortName>Property, Plant and Equipment, Net (Details) - Schedule of property, plant and equipment</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/PropertyPlantandEquipmentNetTables</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>052 - Disclosure - Intangible Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/IntangibleAssetsDetails</Role>
      <ShortName>Intangible Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/IntangibleAssetsTables</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>053 - Disclosure - Intangible Assets (Details) - Schedule of intangible assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleofintangibleassetsTable</Role>
      <ShortName>Intangible Assets (Details) - Schedule of intangible assets</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/IntangibleAssetsTables</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>054 - Disclosure - Accounts Payable and Accrued Expenses (Details) - Schedule of accounts payable and accrued expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleofaccountspayableandaccruedexpensesTable</Role>
      <ShortName>Accounts Payable and Accrued Expenses (Details) - Schedule of accounts payable and accrued expenses</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/AccountsPayableandAccruedExpensesTables</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>055 - Disclosure - Bank Debt (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/BankDebtDetails</Role>
      <ShortName>Bank Debt (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/BankDebtTables</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>056 - Disclosure - Bank Debt (Details) - Schedule of debt proceeds received and principal repayments made during the year</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleofdebtproceedsreceivedandprincipalrepaymentsmadeduringtheyearTable</Role>
      <ShortName>Bank Debt (Details) - Schedule of debt proceeds received and principal repayments made during the year</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/BankDebtTables</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>057 - Disclosure - Bank Debt (Details) - Schedule of principal payments due under debt outstanding</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleofprincipalpaymentsdueunderdebtoutstandingTable</Role>
      <ShortName>Bank Debt (Details) - Schedule of principal payments due under debt outstanding</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/BankDebtTables</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>058 - Disclosure - Contingent Liabilities and Commitments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ContingentLiabilitiesandCommitmentsDetails</Role>
      <ShortName>Contingent Liabilities and Commitments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/ContingentLiabilitiesandCommitments</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>059 - Disclosure - Operating Lease (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/OperatingLeaseDetails</Role>
      <ShortName>Operating Lease (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/OperatingLeaseTables</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>060 - Disclosure - Operating Lease (Details) - Schedule of lease costs and other lease information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleofleasecostsandotherleaseinformationTable</Role>
      <ShortName>Operating Lease (Details) - Schedule of lease costs and other lease information</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/OperatingLeaseTables</ParentRole>
      <Position>61</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>061 - Disclosure - Operating Lease (Details) - Schedule of future lease payments required under non-cancelable operating leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleoffutureleasepaymentsrequiredundernoncancelableoperatingleasesTable</Role>
      <ShortName>Operating Lease (Details) - Schedule of future lease payments required under non-cancelable operating leases</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/OperatingLeaseTables</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>062 - Disclosure - Stockholders' Equity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/StockholdersEquityDetails</Role>
      <ShortName>Stockholders' Equity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/StockholdersEquityTables</ParentRole>
      <Position>63</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>063 - Disclosure - Stockholders' Equity (Details) - Schedule of activity under the stock option plans</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleofactivityunderthestockoptionplansTable</Role>
      <ShortName>Stockholders' Equity (Details) - Schedule of activity under the stock option plans</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/StockholdersEquityTables</ParentRole>
      <Position>64</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>064 - Disclosure - Stockholders' Equity (Details) - Schedule of additional information about the stock option plans</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleofadditionalinformationaboutthestockoptionplansTable</Role>
      <ShortName>Stockholders' Equity (Details) - Schedule of additional information about the stock option plans</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/StockholdersEquityTables</ParentRole>
      <Position>65</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>065 - Disclosure - Stockholders' Equity (Details) - Schedule of fair value stock option grant using black-scholes option valuation model with the weighted-average assumptions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleoffairvaluestockoptiongrantusingblackscholesoptionvaluationmodelwiththeweightedaverageassumptionsTable</Role>
      <ShortName>Stockholders' Equity (Details) - Schedule of fair value stock option grant using black-scholes option valuation model with the weighted-average assumptions</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/StockholdersEquityTables</ParentRole>
      <Position>66</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>066 - Disclosure - Revenue (Details) - Schedule of revenue disaggregated by geographic area and major product category</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleofrevenuedisaggregatedbygeographicareaandmajorproductcategoryTable</Role>
      <ShortName>Revenue (Details) - Schedule of revenue disaggregated by geographic area and major product category</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/RevenueTables</ParentRole>
      <Position>67</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>067 - Disclosure - Revenue (Details) - Schedule of revenue disaggregated by geographic area and major product category</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleofrevenuedisaggregatedbygeographicareaandmajorproductcategoryTable0</Role>
      <ShortName>Revenue (Details) - Schedule of revenue disaggregated by geographic area and major product category</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/RevenueTables</ParentRole>
      <Position>68</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>068 - Disclosure - Other Expenses, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/OtherExpensesNetDetails</Role>
      <ShortName>Other Expenses, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/OtherExpensesNetTables</ParentRole>
      <Position>69</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>069 - Disclosure - Other Expenses, Net (Details) - Schedule of other expenses, net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/ScheduleofotherexpensesnetTable</Role>
      <ShortName>Other Expenses, Net (Details) - Schedule of other expenses, net</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/OtherExpensesNetTables</ParentRole>
      <Position>70</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>070 - Disclosure - Income Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/IncomeTaxesDetails</Role>
      <ShortName>Income Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/IncomeTaxes</ParentRole>
      <Position>71</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>071 - Disclosure - Segment Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/SegmentInformationDetails</Role>
      <ShortName>Segment Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/SegmentInformation</ParentRole>
      <Position>72</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>072 - Disclosure - Related Party Transactions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/RelatedPartyTransactionsDetails</Role>
      <ShortName>Related Party Transactions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/RelatedPartyTransactions</ParentRole>
      <Position>73</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>073 - Disclosure - Employee Benefits (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/EmployeeBenefitsDetails</Role>
      <ShortName>Employee Benefits (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/EmployeeBenefits</ParentRole>
      <Position>74</Position>
    </Report>
    <Report instance="f10q0621_immucellcorp.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>074 - Disclosure - Subsequent Events (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://immucell.com/role/SubsequentEventsDetails</Role>
      <ShortName>Subsequent Events (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://immucell.com/role/SubsequentEvents</ParentRole>
      <Position>75</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="10-Q" original="f10q0621_immucellcorp.htm">f10q0621_immucellcorp.htm</File>
    <File>f10q0621ex31_immucellcorp.htm</File>
    <File>f10q0621ex32_immucellcorp.htm</File>
    <File>iccc-20210630.xsd</File>
    <File>iccc-20210630_cal.xml</File>
    <File>iccc-20210630_def.xml</File>
    <File>iccc-20210630_lab.xml</File>
    <File>iccc-20210630_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy>http://fasb.org/us-gaap/2021-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/country/2021</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2021</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/srt/2021-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
