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BUSINESS ACQUISITIONS (Details) (USD $)
12 Months Ended
Jan. 03, 2015
Technology
Dec. 28, 2013
Dec. 29, 2012
Business Acquisition [Line Items]      
Number of technologies combination 3eml_NumberOfTechnologiesCombination    
Goodwill $ 14,960,354us-gaap_Goodwill $ 13,842,047us-gaap_Goodwill $ 13,933,599us-gaap_Goodwill
Intangible Assets Acquired [Abstract]      
Assets acquired 1,164,076us-gaap_FinitelivedIntangibleAssetsAcquired1    
Weighted-average amortization period (in Years) 5 years    
Argo Transdata Corporation [Member]      
Business Acquisition [Line Items]      
Cost of the acquisition 5,034,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= eml_AgroTransdataCorporationMember
   
Contingent earn-out 282,914us-gaap_BusinessCombinationContingentConsiderationAsset
/ us-gaap_BusinessAcquisitionAxis
= eml_AgroTransdataCorporationMember
   
Business acquisition, current liabilities 63,000us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent
/ us-gaap_BusinessAcquisitionAxis
= eml_AgroTransdataCorporationMember
   
Goodwill 1,225,226us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= eml_AgroTransdataCorporationMember
   
Customer Relationships [Member]      
Intangible Assets Acquired [Abstract]      
Assets acquired 449,706us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
   
Weighted-average amortization period (in Years) 5 years    
Intellectual Property [Member]      
Intangible Assets Acquired [Abstract]      
Assets acquired 307,370us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_IntellectualPropertyMember
   
Weighted-average amortization period (in Years) 5 years    
Non-Compete Agreements [Member]      
Intangible Assets Acquired [Abstract]      
Assets acquired $ 407,000us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_NoncompeteAgreementsMember
   
Weighted-average amortization period (in Years) 5 years