RETIREMENT BENEFIT PLANS (Details) - USD ($)	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021
Pension Benefit [Member]
Service cost	$ 1,087,333	$ 1,065,739
Interest cost	2,017,015	2,856,569
Expected return on plan assets	5,794,694	5,461,044
Amortization of prior service cost	99,380	99,380
Amortization of the net loss	1,730,150	1,300,134
Net periodic benefit cost	(860,816)	(139,222)
Other Postretirement Benefit [Member]
Service cost	54,505	43,418
Interest cost	39,369	46,668
Expected return on plan assets	25,681	22,355
Amortization of prior service cost	0	(8,253)
Amortization of the net loss	(12,374)	(25,509)
Net periodic benefit cost	$ 55,819	$ 33,969