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RETIREMENT BENEFIT PLANS, Defined Contribution Plan (Details) - USD ($) | 12 Months Ended
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Dec. 29, 2018 | Dec. 30, 2017
Contribution Plan [Abstract] |  |
Total contributions made for the period | $ 1,478,481 | $ 1,206,996
Regular Matching Contributions [Member] |  |
Contribution Plan [Abstract] |  |
Total contributions made for the period | 551,046 | 465,671
Transitional Credit Contributions [Member] |  |
Contribution Plan [Abstract] |  |
Total contributions made for the period | 349,062 | 385,578
Non-discretionary Contributions [Member] |  |
Contribution Plan [Abstract] |  |
Total contributions made for the period | $ 578,373 | 355,747
Plan 401 K Plan Amendment [Member] |  |
Contribution Plan [Abstract] |  |
Percentage of voluntary contributions allowed to participants, maximum | 100.00% |
Employer matching contribution percentage | 50.00% |
Increase in employer matching contribution on first of total employee contributions, percentage | 6.00% |
Non-discretionary contribution percentage for employees who were not eligible to participate in the salaried plan | 3.00% |
Non-Union U.S. Employees [Member] |  |
Contribution Plan [Abstract] |  |
Total contributions made for the period | $ 565,748 | $ 502,618
Non-Union U.S. Employees [Member] | Minimum [Member] |  |
Contribution Plan [Abstract] |  |
Non-discretionary contribution percentage for certain employees who were eligible to participate in the salaried plan | 0.00% |
Non-Union U.S. Employees [Member] | Maximum [Member] |  |
Contribution Plan [Abstract] |  |
Non-discretionary contribution percentage for certain employees who were eligible to participate in the salaried plan | 4.00% |

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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
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- Definition Percentage employer matches of the employee's percentage contribution matched. + References No definition available. + Details
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- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. + References No definition available. + Details
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