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Retirement Benefit Plans (Details 1) - USD ($)	3 Months Ended
	Mar. 29, 2025	Mar. 30, 2024
Total contributions for the period	$ 438,996	$ 425,359
Regular Matching Contributions [Member]
Total contributions for the period	306,639	285,563
Transitional Credit Contributions [Member]
Total contributions for the period	23,865	28,906
Non-Discretionary Contributions [Member]
Total contributions for the period	$ 108,492	$ 110,890

X

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
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: