Retirement Benefit Plans (Details) - USD ($)	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Pension Benefit [Member]
Service cost	$ 178,003	$ 216,153
Interest cost	966,702	990,054
Expected return on plan assets	(1,099,035)	(1,049,016)
Amortization of the net loss	327,365	342,865
Net periodic benefit cost	373,035	500,056
Other Postretirement Benefit [Member]
Service cost	3,574	6,486
Interest cost	12,951	14,533
Expected return on plan assets	(4,684)	(4,849)
Amortization of prior service cost	1,060	1,060
Amortization of the net loss	(19,567)	(16,895)
Net periodic benefit cost	$ (6,666)	$ 335