Retirement Benefit Plans (Details Narrative) - USD ($)	12 Months Ended
	Dec. 30, 2023	Dec. 31, 2022
Accrued amount for non discretionary safe harbor contribution	$ 328,953	$ 379,090
Description of investment plan	The Eastern Company Savings and Investment Plan as amended effective April 1, 2023 (“401(k) Plan Amendment”) provides for a match of 50% of the first 6% of employee contributions. The 401(k) Plan Amendment also provides for an additional non-discretionary contribution (the “transitional credit”) for certain non-union U.S. employees. The amount of this non-discretionary contribution ranges from 0% to 4% of wages, based on the age of the individual on June 1, 2016. The 401(k) Plan Amendment provides a non-discretionary safe harbor contribution of 3%. All non-union U.S. employees are eligible to join the plan
Pension Benefit [Member]
Fair value of plan assets	$ 60,836,643	58,527,250
Accumulated benefit obligation	81,862,011	80,701,715
2024	5,100,000
2025	5,300,000
2026	5,500,000
2027	5,600,000
2028	5,700,000
2029 through 2033	29,100,000
Cash contributions	2,100,000
Dividend received	95,488	95,488
Other Postretirement Benefit [Member]
2024	46,000
2025	47,000
2026	49,000
2027	49,000
2028	51,000
2029 through 2033	281,000
Cash contributions	50,000
Eastern Company Common Stock [Member] | Pension Benefit [Member]
Fair value of plan assets	$ 4,774,396	$ 4,184,107