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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 | 3 eml_NumberOfTechnologiesCombination |  |
Goodwill | $ 14,960,354 us-gaap_Goodwill | $ 13,842,047 us-gaap_Goodwill | $ 13,933,599 us-gaap_Goodwill
Intangible Assets Acquired [Abstract] |  |  |
Assets acquired | 1,164,076 us-gaap_FinitelivedIntangibleAssetsAcquired1 |  |
Weighted-average amortization period (in Years) | 5 years |  |
Argo Transdata Corporation [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Cost of the acquisition | 5,034,000 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = eml_AgroTransdataCorporationMember |  |
Contingent earn-out | 282,914 us-gaap_BusinessCombinationContingentConsiderationAsset / us-gaap_BusinessAcquisitionAxis = eml_AgroTransdataCorporationMember |  |
Business acquisition, current liabilities | 63,000 us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent / us-gaap_BusinessAcquisitionAxis = eml_AgroTransdataCorporationMember |  |
Goodwill | 1,225,226 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = eml_AgroTransdataCorporationMember |  |
Customer Relationships [Member] |  |  |
Intangible Assets Acquired [Abstract] |  |  |
Assets acquired | 449,706 us-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 | 307,370 us-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 | $ 407,000 us-gaap_FinitelivedIntangibleAssetsAcquired1 / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_NoncompeteAgreementsMember |  |
Weighted-average amortization period (in Years) | 5 years |  |

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