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MARKET SECTORS AND MAJOR CUSTOMERS (Details Textual)
 6 Months Ended
Mar. 27, 2015
customer
Mar. 28, 2014
customer
Concentration risk, number of customers 3iec_ConcentrationRiskNumberofCustomers  
Customer Concentration Risk [Member] | Sales [Member] | Industrial [Member]    
Concentration risk, number of customers 1iec_ConcentrationRiskNumberofCustomers
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ iec_MajorSectorAxis
= iec_IndustrialMember		 1iec_ConcentrationRiskNumberofCustomers
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ iec_MajorSectorAxis
= iec_IndustrialMember
Concentration risk, percentage 17.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ iec_MajorSectorAxis
= iec_IndustrialMember		 15.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ iec_MajorSectorAxis
= iec_IndustrialMember
Customer Concentration Risk [Member] | Sales [Member] | Aerospace & Defense [Member]    
Concentration risk, number of customers 1iec_ConcentrationRiskNumberofCustomers
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ iec_MajorSectorAxis
= iec_AerospaceandDefenseMember		  
Concentration risk, percentage 10.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ iec_MajorSectorAxis
= iec_AerospaceandDefenseMember		  
Customer Concentration Risk [Member] | Sales [Member] | Medical [Member]    
Concentration risk, number of customers 1iec_ConcentrationRiskNumberofCustomers
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ iec_MajorSectorAxis
= iec_MedicalOtherMember		  
Concentration risk, percentage 14.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ iec_MajorSectorAxis
= iec_MedicalOtherMember		  
Customer Concentration Risk [Member] | Accounts Receivable [Member]    
Concentration risk, number of customers 2iec_ConcentrationRiskNumberofCustomers
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember		 1iec_ConcentrationRiskNumberofCustomers
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
Concentration risk, percentage 21.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember		 11.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember