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INCOME TAXES (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 28, 2013 | Dec. 29, 2012 | Dec. 31, 2011
Components of Deferred Tax Assets and Liabilities [Abstract] |  |  |
Property, plant and equipment | $ 6,184,873 | $ 5,942,048 | $ 5,480,102
Other | 208,938 | 0 | 0
Total deferred income tax liabilities | 6,393,811 | 5,942,048 | 5,480,102
Other postretirement benefits | (787,087) | (885,729) | (653,238)
Inventories | (848,364) | (761,613) | (1,005,134)
Allowance for doubtful accounts | (104,695) | (104,903) | (94,120)
Intangible assets | (373,482) | (422,443) | (472,243)
Accrued compensation | (158,866) | (197,582) | (224,155)
Pensions | (3,828,224) | (7,128,057) | (5,573,596)
Other | 0 | (116,826) | (160,876)
Total deferred income tax assets | (6,100,718) | (9,617,153) | (8,183,362)
Net deferred income tax (assets) liabilities | 293,093 | (3,675,105) | (2,703,260)
Income before income taxes [Abstract] |  |  |
Domestic | 7,139,039 | 8,614,664 | 5,180,467
Foreign | 2,974,856 | 4,609,854 | 3,326,462
Income before income taxes | 10,113,895 | 13,224,518 | 8,506,929
Current: |  |  |
Federal | 1,942,271 | 1,909,172 | 214,988
Foreign | 871,949 | 1,367,025 | 830,028
State | 162,952 | 220,820 | 109,711
Deferred: |  |  |
Federal | 241,821 | 1,022,660 | 1,747,620
Foreign | 0 | 0 | 0
State | (7,019) | 79,041 | 99,652
Provision for income taxes | 3,211,974 | 4,598,718 | 3,001,999
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 | 3,438,724 | 4,496,336 | 2,892,356
State income taxes, net of federal benefit | 99,245 | 188,490 | 133,201
Impact of foreign subsidiaries on effective tax rate | (103,878) | 136,590 | 21,329
Impact of manufacturers deduction on effective tax rate | (138,127) | (232,928) | (50,537)
Other-net | (83,990) | 10,230 | 5,650
Provision for income taxes | 3,211,974 | 4,598,718 | 3,001,999
Income taxes using U.S. federal statutory rate (in hundredths) | 34.00% | 34.00% | 34.00%
State income taxes, net of federal benefit (in hundredths) | 1.00% | 2.00% | 2.00%
Impact of foreign subsidiaries on effective tax rate (in hundredths) | (1.00%) | 1.00% | 0.00%
Impact of manufacturers deduction on effective tax rate (in hundredths) | (1.00%) | (2.00%) | (1.00%)
Other-net (in hundredths) | (1.00%) | 0.00% | 0.00%
Effective income tax rate (in hundredths) | 32.00% | 35.00% | 35.00%
Total income taxes paid | 2,568,708 | 3,350,283 | 1,631,299
Undistributed earnings of foreign subsidiaries | 13,791,838 |  |
Tax benefit from exercise of non-qualified stock options and disqualifying dispositions of incentive stock options | 0 | 0 | 106,471
Reconciliation of the beginning and ending amount of unrecognized tax benefits [Roll Forward] |  |  |
Balance at beginning of year | 499,624 | 486,332 | 495,843
Increases for positions taken during the current period | 49,636 | 119,893 | 25,398
Decreases relating to settlements | (263,856) | 0 | 0
Decreases resulting from the expiration of the statute of limitations | (65,115) | (106,601) | (34,909)
Balance at end of year | 220,289 | 499,624 | 486,332
Income Tax Contingency [Line Items] |  |  |
Unrecognized tax benefits that would affect the annual effective tax rate | 145,391 |  |
Accrued interest related to unrecognized tax benefits | $ 28,000 |  |
U.S. federal [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Open tax year | 2010 |  |
State and Local Jurisdiction [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Open tax year | 2010 |  |
Foreign Jurisdiction [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Open tax year | 2007 |  |

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