INCOME TAXES (Details) - USD ($)	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Components of Deferred Tax Assets and Liabilities [Abstract]
Property, plant and equipment	$ 6,694,885	$ 6,503,597	$ 6,184,873
Other	99,989	92,531	208,938
Total deferred income tax liabilities	6,794,874	6,596,128	6,393,811
Other postretirement benefits	(281,154)	(1,030,203)	(787,087)
Inventories	(807,061)	(829,876)	(848,364)
Allowance for doubtful accounts	(124,351)	(105,296)	(104,695)
Intangible assets	(299,137)	(396,541)	(373,482)
Accrued compensation	(252,297)	(203,180)	(158,866)
Pensions	(8,616,582)	(9,275,949)	(3,828,224)
Total deferred income tax assets	(10,380,582)	(11,841,045)	(6,100,718)
Net deferred income tax assets	(3,585,708)	(5,244,917)
Net deferred income tax liabilities			293,093
Income before income taxes [Abstract]
Domestic	4,308,809	8,087,552	7,139,039
Foreign	3,712,166	3,441,211	2,974,856
Income before income taxes	8,020,975	11,528,763	10,113,895
Current:
Federal	1,337,417	2,339,917	1,942,271
Foreign	1,054,694	991,257	871,949
State	140,139	295,554	162,952
Deferred:
Federal	(223,530)	164,830	241,821
State	(14,788)	75,729	(7,019)
Provision for income taxes	2,293,932	3,867,287	3,211,974
Reconciliation of income taxes computed using U.S. federal statutory rate to that reflected in operations [Abstract]
Income taxes using U.S. federal statutory rate, Amount	2,727,131	3,919,779	3,438,724
State income taxes, net of federal benefit, Amount	82,987	249,324	99,245
Impact of foreign subsidiaries on effective tax rate, Amount	(388,132)	(76,914)	(103,878)
Impact of manufacturers deduction on effective tax rate, Amount	(91,018)	(185,993)	(138,127)
Other-net, Amount	(37,036)	(38,909)	(83,990)
Provision for income taxes	$ 2,293,932	$ 3,867,287	$ 3,211,974
Income taxes using U.S. federal statutory rate, Percent	34.00%	34.00%	34.00%
State income taxes, net of federal benefit, Percent	1.00%	2.00%	1.00%
Impact of foreign subsidiaries on effective tax rate, Percent	(5.00%)	(1.00%)	(1.00%)
Impact of manufacturers deduction on effective tax rate, Percent	(1.00%)	(1.00%)	(1.00%)
Other-net, Percent	0.00%	0.00%	(1.00%)
Effective income tax rate	29.00%	34.00%	32.00%
Total income taxes paid	$ 2,348,865	$ 3,989,978	$ 2,568,708
Undistributed earnings of foreign subsidiaries	13,308,709
Tax benefit from exercise of non-qualified stock options and disqualifying dispositions of incentive stock options	0	8,882	0
Reconciliation of the beginning and ending amount of unrecognized tax benefits [Roll Forward]
Balance at beginning of year	248,645	220,289	499,624
Increases for positions taken during the current period	27,947	50,735	49,636
Decreases relating to settlements	0	0	(263,856)
Decreases resulting from the expiration of the statute of limitations	(26,810)	(22,379)	(65,115)
Balance at end of year	249,782	$ 248,645	$ 220,289
Income Tax Contingency [Line Items]
Unrecognized tax benefits that would affect the annual effective tax rate	164,856
Accrued interest related to unrecognized tax benefits	$ 37,000
U.S. federal [Member]
Income Tax Contingency [Line Items]
Open tax year	2012
State and Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Open tax year	2012
Foreign Jurisdiction [Member]
Income Tax Contingency [Line Items]
Open tax year	2009