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DEFERRED GRANTS (Details Textual) (USD $)
 3 Months Ended
Mar. 27, 2015
Mar. 28, 2014
Amortization of deferred grants $ 82,000us-gaap_AmortizationOfDeferredCharges $ 5,000us-gaap_AmortizationOfDeferredCharges
Local Government Agency One [Member]    
Grant proceeds 100,000us-gaap_DeferredCreditsAndOtherLiabilities
/ iec_GovernmentalAgenciesAxis
= iec_LocalGovernmentAgencyOneMember		  
Local Government Agency Two [Member]    
Grant proceeds $ 100,000us-gaap_DeferredCreditsAndOtherLiabilities
/ iec_GovernmentalAgenciesAxis
= iec_LocalGovernmentAgencyTwoMember