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Note 4 - Inventory (Details Textual) - USD ($) | Dec. 31, 2025 | Dec. 31, 2024
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Colostrum [Member] |  |
Inventory, Work in Process, Gross | $ 3,402,201 | $ 3,590,628

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- Definition Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)(3)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_InventoryWorkInProcess
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
Name: | us-gaap_PublicUtilitiesInventoryAxis=iccc_ColostrumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |