RETIREMENT BENEFIT PLANS (Details 3) - USD ($)	12 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Pension Benefit [Member]
Amounts recognized in accumulated other comprehensive income [Abstract]
Net (loss)/gain	$ (43,727,607)	$ (36,315,245)
Prior service (cost) credit	(165,632)	(265,012)
Total	(43,893,239)	(36,580,257)
Defined Benefit Plan, Change in components of accumulated other comprehensive income [Abstract]
Change due to availability of final actual assets and census data	0	0
Charged to net periodic benefit cost [Abstract]
Prior service cost	99,380	99,380
Net loss (gain)	1,300,134	1,162,196
Liability (gains)/losses
Discount rate, amount	(10,606,709)	(12,313,831)
Asset (gains)/losses deferred	6,202,764	7,724,649
Significant Event	0	0
Other	(4,308,541)	826,325
Balance at beginning of period	(36,580,267)	(34,078,976)
Balance at end of period	(43,893,239)	(36,580,257)
Other Postretirement Benefit [Member]
Amounts recognized in accumulated other comprehensive income [Abstract]
Net (loss)/gain	349,276	499,701
Prior service (cost) credit	0	8,253
Total	349,276	507,954
Defined Benefit Plan, Change in components of accumulated other comprehensive income [Abstract]
Balance at beginning of period	507,954	1,345,959
Change due to availability of final actual assets and census data	0	0
Charged to net periodic benefit cost [Abstract]
Prior service cost	(8,253)	(5,072)
Net loss (gain)	(25,509)	(47,272)
Liability (gains)/losses
Discount rate, amount	(218,000)	(239,138)
Asset (gains)/losses deferred	60,802	(14,567)
Significant Event	0	(454,143)
Other	32,282	(77,813)
Balance at end of period	$ 349,276	$ 507,954