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Summary of Significant Accounting Policies (Details)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Net (Loss) Income Per Common Share    
Weighted average number of shares outstanding 3,027,345us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 3,026,901us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Effect of dilutive stock options 116,231iccc_EffectOfDilutiveStockOptions 0iccc_EffectOfDilutiveStockOptions
Diluted number of shares outstanding 3,143,576us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 3,026,901us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Outstanding stock options not included in the calculation because the effect would be anti-dilutive 4,000us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 246,000us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount