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Retirement Benefit Plans (Details 1) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 27, 2025	Sep. 28, 2024
Total contributions for the period	$ 304,291	$ 364,227	$ 1,089,121	$ 1,176,416
Regular Matching Contributions [Member]
Total contributions for the period	201,113	263,074	747,549	810,630
Transitional Credit Contributions [Member]
Total contributions for the period	18,882	20,688	61,369	71,558
Non-Discretionary Contributions [Member]
Total contributions for the period	$ 84,296	$ 80,465	$ 280,203	$ 294,228

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: