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Retirement Benefit Plans (Details 1) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 29, 2024	Jul. 01, 2023	Jun. 29, 2024	Jul. 01, 2023
Total contributions for the period	$ 386,830	$ 369,172	$ 812,189	$ 1,088,201
Regular Matching Contributions [Member]
Total contributions for the period	261,993	253,665	547,556	506,426
Transitional Credit Contributions [Member]
Total contributions for the period	21,964	26,344	50,870	60,663
Non-Discretionary Contributions [Member]
Total contributions for the period	$ 102,873	$ 89,163	$ 213,763	$ 521,112

X

- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_RetirementPlanNameAxis=eml_RegularMatchingContributionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RetirementPlanNameAxis=eml_TransitionalCreditContributionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RetirementPlanNameAxis=eml_NonDiscretionaryContributionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: