RETIREMENT BENEFIT PLANS, Amounts Recognized in, and Changes in Components of Accumulated Other Comprehensive Income (Details) - USD ($)	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016	Dec. 30, 2017	Dec. 31, 2016
Amounts recognized in accumulated other comprehensive income [Abstract]
Total	$ 21,039,520	$ 21,039,520		$ 20,485,277	$ 21,039,520
Defined Benefit Plan, Change in components of accumulated other comprehensive income [Abstract]
Balance at beginning of period	21,039,520
Liability (gains)/losses [Abstract]
Balance at end of period	20,485,277	21,039,520
Pension Benefits [Member]
Amounts recognized in accumulated other comprehensive income [Abstract]
Net (loss)/gain				(32,565,614)	(33,623,438)
Prior service (cost) credit				(494,142)	(176,117)
Total	(33,799,555)	(33,799,555)	$ (32,597,167)	(33,059,756)	(33,799,555)
Defined Benefit Plan, Change in components of accumulated other comprehensive income [Abstract]
Balance at beginning of period	(33,799,555)	(32,597,167)
Change due to availability of final actual assets and census data	0	0
Charged to net periodic benefit cost [Abstract]
Prior service cost	178,874	200,568	218,585
Net loss (gain)	1,231,486	1,704,863	1,928,298
Liability (gains)/losses [Abstract]
Discount rate	(6,200,491)	(2,359,745)
Asset (gains)/losses deferred	5,978,071	(4,325,232)
Additional recognition due to plan amendment	(496,899)	2,534,589
Other	48,758	1,042,569
Balance at end of period	(33,059,756)	(33,799,555)	(32,597,167)
Amounts that will be amortized from accumulated other comprehensive income in next fiscal year [Abstract]
Net (loss) gain				(1,118,370)
Prior service cost (credit)				120,968
Other Postretirement Benefits [Member]
Amounts recognized in accumulated other comprehensive income [Abstract]
Net (loss)/gain				1,089,785	1,231,081
Prior service (cost) credit				18,397	39,841
Total	1,108,182	1,270,922	1,722,137	1,108,182	$ 1,270,922
Defined Benefit Plan, Change in components of accumulated other comprehensive income [Abstract]
Balance at beginning of period	1,270,922	1,722,137
Change due to availability of final actual assets and census data	0	(317,440)
Charged to net periodic benefit cost [Abstract]
Prior service cost	(21,444)	(23,890)	(23,889)
Net loss (gain)	(77,601)	(93,921)	18,804
Liability (gains)/losses [Abstract]
Discount rate	(181,691)	(34,471)
Asset (gains)/losses deferred	52,395	51,529
Additional recognition due to plan amendment	0	0
Other	65,601	(33,022)
Balance at end of period	$ 1,108,182	1,270,922	$ 1,722,137
Amounts that will be amortized from accumulated other comprehensive income in next fiscal year [Abstract]
Net (loss) gain				65,591
Prior service cost (credit)				$ (5,072)
Salaried Plan [Member]
Amounts that will be amortized from accumulated other comprehensive income in next fiscal year [Abstract]
Pension expense		$ (2,447,000)