INCOME TAXES (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Components of Deferred Tax Assets and Liabilities [Abstract]
Property, plant and equipment	$ 6,515,129	$ 6,694,885	$ 6,503,597
Other	119,618	99,989	92,531
Total deferred income tax liabilities	6,634,747	6,794,874	6,596,128
Other postretirement benefits	(371,460)	(281,154)	(1,030,203)
Inventories	(806,680)	(807,061)	(829,876)
Allowance for doubtful accounts	(124,329)	(124,351)	(105,296)
Intangible assets	(224,609)	(299,137)	(396,541)
Accrued compensation	(233,806)	(252,297)	(203,180)
Pensions	(9,406,224)	(8,616,582)	(9,275,949)
Total deferred income tax assets	(11,167,108)	(10,380,582)	(11,841,045)
Net deferred income tax (assets) liabilities	(4,532,361)	(3,585,708)	(5,244,917)
Income before income taxes [Abstract]
Domestic	7,276,239	4,308,809	8,087,552
Foreign	3,947,176	3,712,166	3,441,211
Income before income taxes	11,223,415	8,020,975	11,528,763
Current [Abstract]
Federal	2,554,341	1,337,417	2,339,917
Foreign	1,091,952	1,054,694	991,257
State	194,514	140,139	295,554
Deferred [Abstract]
Federal	(339,412)	(223,530)	164,830
State	(63,303)	(14,788)	75,729
Provision for income taxes	3,438,092	2,293,932	3,867,287
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	3,815,962	2,727,131	3,919,779
State income taxes, net of federal benefit, Amount	87,061	82,987	249,324
Impact of foreign subsidiaries on effective tax rate, Amount	(365,528)	(388,132)	(76,914)
Impact of manufacturers deduction on effective tax rate, Amount	(140,690)	(91,018)	(185,993)
Other-net, Amount	41,287	(37,036)	(38,909)
Provision for income taxes	$ 3,438,092	$ 2,293,932	$ 3,867,287
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%	1.00%	2.00%
Impact of foreign subsidiaries on effective tax rate, Percent	(3.00%)	(5.00%)	(1.00%)
Impact of manufacturers deduction on effective tax rate, Percent	(1.00%)	(1.00%)	(1.00%)
Other-net, Percent	0.00%	0.00%	0.00%
Effective income tax rate	31.00%	29.00%	34.00%
Total income taxes paid	$ 3,493,558	$ 2,348,865	$ 3,989,978
Undistributed earnings of foreign subsidiaries	16,163,932
Tax benefit from exercise of non-qualified stock options and disqualifying dispositions of incentive stock options	0	0	8,882
Reconciliation of the beginning and ending amount of unrecognized tax benefits [Roll Forward]
Balance at beginning of year	249,782	248,645	220,289
Increases for positions taken during the current period	44,172	27,947	50,735
Decreases relating to settlements	0	0	0
Decreases resulting from the expiration of the statute of limitations	(42,115)	(26,810)	(22,379)
Balance at end of year	251,839	$ 249,782	$ 248,645
Income Tax Contingency [Line Items]
Unrecognized tax benefits that would affect the annual effective tax rate	166,214
Accrued interest related to unrecognized tax benefits	$ 37,000
U.S. federal [Member]
Income Tax Contingency [Line Items]
Open tax year	2013
State and Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Open tax year	2013
Foreign Jurisdiction [Member]
Income Tax Contingency [Line Items]
Open tax year	2010