RETIREMENT BENEFIT PLANS, Amounts Recognized in, and Changes in Components of AOCI (Details) - USD ($)	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 28, 2019	Dec. 29, 2018
Amounts recognized in accumulated other comprehensive income [Abstract]
Total	$ 23,363,637	$ 20,688,630	$ 23,363,637	$ 20,688,630
Defined Benefit Plan, Change in components of accumulated other comprehensive income [Abstract]
Balance at beginning of period	20,688,630
Liability (gains)/losses [Abstract]
Balance at end of period	23,363,637	20,688,630
Pension Benefit [Member]
Amounts recognized in accumulated other comprehensive income [Abstract]
Net (loss)/gain			(36,315,245)	(33,714,584)
Prior service (cost) credit			(265,012)	(364,392)
Total	(34,078,976)	(33,059,756)	(36,580,257)	(34,078,976)
Defined Benefit Plan, Change in components of accumulated other comprehensive income [Abstract]
Balance at beginning of period	(34,078,976)	(33,059,756)
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	114,822
Net loss (gain)	1,162,196	1,110,111
Liability (gains)/losses [Abstract]
Discount rate	(12,313,831)	8,319,874
Asset (gains)/losses deferred	7,724,649	(9,531,647)
Significant Event	0	0
Additional recognition due to plan amendment	0	14,928
Other	826,325	(1,047,308)
Balance at end of period	(36,580,257)	(34,078,976)
Amounts that will be amortized from accumulated other comprehensive income in next fiscal year [Abstract]
Net (loss) gain			(1,300,134)
Prior service cost (credit)			99,380
Other Postretirement Benefit [Member]
Amounts recognized in accumulated other comprehensive income [Abstract]
Net (loss)/gain			499,701	1,332,634
Prior service (cost) credit			8,253	13,325
Total	1,345,959	1,108,182	507,954	$ 1,345,959
Defined Benefit Plan, Change in components of accumulated other comprehensive income [Abstract]
Balance at beginning of period	1,345,959	1,108,182
Change due to availability of final actual assets and census data	0	0
Charged to net periodic benefit cost [Abstract]
Prior service cost	(5,072)	(5,072)
Net loss (gain)	(47,272)	(65,591)
Liability (gains)/losses [Abstract]
Discount rate	(239,138)	217,539
Asset (gains)/losses deferred	(14,567)	1,237
Significant Event	(454,143)	0
Additional recognition due to plan amendment	0	0
Other	(77,813)	89,664
Balance at end of period	$ 507,954	$ 1,345,959
Amounts that will be amortized from accumulated other comprehensive income in next fiscal year [Abstract]
Net (loss) gain			25,509
Prior service cost (credit)			$ (5,072)