RETIREMENT BENEFIT PLANS, Amounts Recognized in, and Changes in Components of Accumulated Other Comprehensive Income (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015	Dec. 31, 2016	Jan. 02, 2016
Amounts recognized in accumulated other comprehensive income [Abstract]
Net (loss)/gain				$ (2,500,000)
Total	$ 21,039,520	$ 19,929,214		21,039,520	$ 19,929,214
Defined Benefit Plan, Change in components of accumulated other comprehensive income [Abstract]
Balance at beginning of period	19,929,214
Liability (gains)/losses [Abstract]
Balance at end of period	21,039,520	19,929,214
Amounts that will be amortized from accumulated other comprehensive income in next fiscal year [Abstract]
Gain from reduction of accumulated plan benefits				2,500,000
Pension expense	(985,000)
Pension Benefits [Member]
Amounts recognized in accumulated other comprehensive income [Abstract]
Net (loss)/gain				(33,623,438)	(32,220,482)
Prior service (cost) credit				(176,117)	(376,685)
Total	(33,799,555)	(32,597,167)	$ (35,689,141)	(33,799,555)	(32,597,167)
Defined Benefit Plan, Change in components of accumulated other comprehensive income [Abstract]
Balance at beginning of period	(32,597,167)	(35,689,141)
Change due to availability of final actual assets and census data	0	0
Charged to net periodic benefit cost [Abstract]
Prior service cost	200,568	218,585	218,585
Net loss (gain)	1,704,863	1,928,298	944,130
Liability (gains)/losses [Abstract]
Discount rate	(2,359,745)	4,121,170
Asset (gains)/losses deferred	(4,325,232)	(2,813,796)
Additional recognition due to significant event	2,534,589	0
Other	1,042,569	(362,283)
Balance at end of period	(33,799,555)	(32,597,167)	(35,689,141)
Amounts that will be amortized from accumulated other comprehensive income in next fiscal year [Abstract]
Gain from reduction of accumulated plan benefits				33,623,438	32,220,482
Net (loss) gain	(1,231,484)
Prior service cost (credit)	145,748
Other Postretirement Benefits [Member]
Amounts recognized in accumulated other comprehensive income [Abstract]
Net (loss)/gain				1,231,081	1,658,406
Prior service (cost) credit				39,841	63,731
Total	1,722,137	1,722,137	(543,233)	1,270,922	1,722,137
Defined Benefit Plan, Change in components of accumulated other comprehensive income [Abstract]
Balance at beginning of period	1,722,137	(543,233)
Change due to availability of final actual assets and census data	(317,440)	(346)
Charged to net periodic benefit cost [Abstract]
Prior service cost	(23,890)	(23,889)	(23,888)
Net loss (gain)	(93,921)	18,804	(72,378)
Liability (gains)/losses [Abstract]
Discount rate	(34,471)	87,748
Asset (gains)/losses deferred	51,529	(52,851)
Additional recognition due to significant event	0	0
Other	(33,022)	2,235,904
Balance at end of period	1,270,922	$ 1,722,137	$ (543,233)
Amounts that will be amortized from accumulated other comprehensive income in next fiscal year [Abstract]
Gain from reduction of accumulated plan benefits				$ (1,231,081)	$ (1,658,406)
Net (loss) gain	93,921
Prior service cost (credit)	(23,890)
Salaried Plan [Member]
Amounts that will be amortized from accumulated other comprehensive income in next fiscal year [Abstract]
Pension expense	$ (2,447,000)