Retirement Benefit Plans (Details Narrative) - USD ($)	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Accrued amount for non discretionary safe harbor contribution		$ 328,953
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]
Accumulated benefit obligation	$ 75,916,060	$ 81,862,011
2025		5,400,000
2026		5,400,000
2027		5,500,000
2028		5,700,000
2029		5,700,000
2030 through 2034		28,800,000
Cash contributions	2,900,000
Dividend received	95,488	95,488
Pension Benefit [Member] | Eastern Company Common Stock [Member]
Fair value of plan assets	5,759,658	4,774,396
Other Postretirement Benefit [Member]
2025		42,000
2026		44,000
2027		44,000
2028		46,000
2029		49,000
2030 through 2034		$ 261,000
Cash contributions	$ 42,000