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Segment and Significant Customer Information (Details) | 3 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014
Animal Health International, Inc [Member] |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Concentration Risk, Percentage | 42.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_StatementBusinessSegmentsAxis = iccc_AnimalHealthInternationalIncMember | [1] | 38.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_StatementBusinessSegmentsAxis = iccc_AnimalHealthInternationalIncMember | [1]
MWI Veterinary Supply Company [Member] |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Concentration Risk, Percentage | 26.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_StatementBusinessSegmentsAxis = iccc_MwiVeterinarySupplyCompanyMember | [2] | 23.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_StatementBusinessSegmentsAxis = iccc_MwiVeterinarySupplyCompanyMember | [2]
[1] | During May 2015, Patterson Companies, Inc. (NASDAQ: PDCO) announced its intent to aquire Animal Health International, Inc.
[2] | During March 2015, AmerisourceBergen Corporation (NYSE: ABC) acquired MWI Veterinary Supply Company.

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