RETIREMENT BENEFIT PLANS, Assumptions Used to Determine the Projected Benefit Obligations and Estimated Benefit Payments (Details)	12 Months Ended
Dec. 29, 2018 USD ($) Plan	Dec. 30, 2017 USD ($) Plan
Estimated future benefit payments to participants [Abstract]
Period of horizon for various asset classes used in calculating expected long term rates of return	10 years
Pension Benefit [Member]
Assumptions used to determine net periodic benefit obligations [Abstract]
Accumulated benefit obligation for all qualified and nonqualified defined benefit pension plans	$ 91,533,200	$ 98,522,201
Pension plans with projected benefit obligation and accumulated benefit obligation in excess of plan assets [Abstract]
Number of plans \| Plan	5	6
Projected benefit obligation	$ 91,533,200	$ 98,522,201
Accumulated benefit obligation	91,533,200	98,522,201
Fair value of plan assets	66,170,875	72,098,722
Net amount recognized in accrued benefit liability	(25,362,325)	$ (26,423,429)
Estimated future benefit payments to participants [Abstract]
2019	4,100,000
2020	4,300,000
2021	4,500,000
2022	4,700,000
2023	4,900,000
2024 through 2028	27,400,000
Contributions expected to be made by Company in next fiscal year	$ 600,000
Pension Benefit [Member] \| Minimum [Member]
Assumptions used to determine net periodic benefit obligations [Abstract]
Discount rate	4.20%	3.54%
Pension Benefit [Member] \| Maximum [Member]
Assumptions used to determine net periodic benefit obligations [Abstract]
Discount rate	4.22%	3.57%
Other Postretirement Benefit [Member]
Assumptions used to determine net periodic benefit obligations [Abstract]
Discount rate	4.26%	3.60%
Pension plans with projected benefit obligation and accumulated benefit obligation in excess of plan assets [Abstract]
Net amount recognized in accrued benefit liability	$ (648,635)	$ (1,032,171)
Estimated future benefit payments to participants [Abstract]
2019	100,000
2020	100,000
2021	101,000
2022	102,000
2023	103,000
2024 through 2028	536,000
Contributions expected to be made by Company in next fiscal year	$ 105,000
Supplemental Pension [Member]
Assumptions used to determine net periodic benefit obligations [Abstract]
Discount rate	3.81%	3.10%

Refers to number of defined benefit plans during the period.

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Period of horizon for various asset classes used in calculating expected long-term rates of return.

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Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.

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Amount of asset (liability), recognized in statement of financial position, for defined benefit pension and other postretirement plans.

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Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

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Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fourth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in third fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year.

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Amount of contributions expected to be received by defined benefit plan from employer in next fiscal year following latest fiscal year.

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Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.

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Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets.

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Amount of projected benefit obligation for defined benefit pension plan with accumulated benefit obligation in excess of plan assets.

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