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Retirement Benefit Plans (Details 1) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 28, 2025	Jun. 29, 2024	Jun. 28, 2025	Jun. 29, 2024
Total contributions for the period	$ 345,834	$ 386,830	$ 784,830	$ 812,189
Regular Matching Contributions [Member]
Total contributions for the period	239,797	261,993	546,436	547,556
Transitional Credit Contributions [Member]
Total contributions for the period	18,622	21,964	42,487	50,870
Non-Discretionary Contributions [Member]
Total contributions for the period	$ 87,415	$ 102,873	$ 195,907	$ 213,763

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: