RETIREMENT BENEFIT PLANS, Net Periodic Benefit Cost and Assumptions (Details) - USD ($)		1 Months Ended	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2016	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Salaried Plan [Member]
Assumptions used to determine the projected benefit obligations [Abstract]
Discount rate	3.69%	3.69%		4.24%
Expected rate of return		8.00%		8.00%
Rate of compensation increase	0.00%	0.00%		3.25%
Assumptions used to determine net periodic benefit cost [Abstract]
Expected rate of return		8.00%		8.00%
Pension Benefits [Member]
Assumptions used to determine the projected benefit obligations [Abstract]
Expected rate of return	8.00%			8.00%	8.00%
Components of the net periodic benefit cost [Abstract]
Discount rate			$ 2,359,745	$ (4,121,170)
Service cost			1,977,295	3,770,191	$ 2,837,134
Interest cost			3,486,982	3,472,870	3,365,194
Actuarial (gain)/loss			2,940,154	(3,316,552)
Benefits paid			(3,398,419)	(2,894,492)
Additional recognition due to significant event			(2,534,589)	0
Expected return on plan assets			(4,995,858)	(5,151,654)	(4,810,524)
Amortization of prior service cost			200,568	218,585	218,585
Amortization of the net loss			1,704,863	1,928,298	944,130
Net periodic benefit cost			$ 2,373,850	$ 4,238,290	$ 2,554,519
Assumptions used to determine net periodic benefit cost [Abstract]
Discount rate				3.90%	4.80%
Expected rate of return	8.00%			8.00%	8.00%
Rate of compensation increase	3.25%			3.25%	3.25%
Pension Benefits [Member] | Minimum [Member]
Assumptions used to determine the projected benefit obligations [Abstract]
Discount rate			4.04%	4.24%
Assumptions used to determine net periodic benefit cost [Abstract]
Discount rate			4.24%
Pension Benefits [Member] | Maximum [Member]
Assumptions used to determine the projected benefit obligations [Abstract]
Discount rate			4.08%	4.28%
Assumptions used to determine net periodic benefit cost [Abstract]
Discount rate			4.28%
Pension Benefits [Member] | Remeasurement Adjustment [Member]
Components of the net periodic benefit cost [Abstract]
Discount rate		$ 4,383,159
Service cost		770,361
Interest cost		818,565
Actuarial (gain)/loss		611,693
Benefits paid		(1,026,898)
Additional recognition due to significant event		(2,534,589)
Net increase in pension benefit obligation		$ 3,022,291
Other Postretirement Benefits [Member]
Assumptions used to determine the projected benefit obligations [Abstract]
Discount rate			4.12%	4.23%
Expected rate of return			8.00%	8.00%	8.00%
Components of the net periodic benefit cost [Abstract]
Discount rate			$ 34,471	$ (87,748)
Service cost			29,300	217,570	$ 173,902
Interest cost			94,872	154,915	157,481
Actuarial (gain)/loss			33,022	(2,235,904)
Benefits paid			(151,399)	(122,947)
Additional recognition due to significant event			0	0
Expected return on plan assets			(47,532)	(91,936)	(22,434)
Amortization of prior service cost			(23,890)	(23,889)	(23,888)
Amortization of the net loss			(93,921)	18,804	(72,378)
Net periodic benefit cost			$ (41,171)	$ 275,464	$ 212,683
Assumptions used to determine net periodic benefit cost [Abstract]
Discount rate			4.23%	3.90%	4.80%
Expected rate of return			8.00%	8.00%	8.00%
Supplemental Plans [Member]
Assumptions used to determine the projected benefit obligations [Abstract]
Discount rate			3.03%	3.53%
Assumptions used to determine net periodic benefit cost [Abstract]
Discount rate			3.53%	3.90%	4.80%