RETIREMENT BENEFIT PLANS, Funded Status (Details) - USD ($)	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Pension Benefit [Member]
Change in benefit obligation [Roll Forward]
Benefit obligation at beginning of year	$ 91,533,200	$ 98,522,201
Change in discount rate	12,313,831	(8,319,874)
Service cost	1,055,410	1,319,841
Interest cost	3,516,318	3,107,164
Actuarial (gain)/loss	(1,508,935)	531,799
Significant Event	0	0
Benefits paid	(3,918,781)	(3,627,931)
Benefit obligation at end of year	102,991,043	91,533,200
Change in fair value of plan assets [Roll Forward]
Fair value of plan assets at beginning of year	66,170,875	72,098,772
Actual return on plan assets	11,803,359	(4,827,641)
Employer contributions	304,105	2,527,675
Significant Event	0	0
Benefits paid	(3,918,781)	(3,627,931)
Fair value of plan assets at end of year	74,359,558	66,170,875
Funded Status [Abstract]
Net amount recognized in the balance sheet	(28,631,485)	(25,362,325)
Other Postretirement Benefit [Member]
Change in benefit obligation [Roll Forward]
Benefit obligation at beginning of year	2,096,761	2,423,410
Change in discount rate	239,138	(217,539)
Service cost	33,287	37,024
Interest cost	56,755	77,161
Actuarial (gain)/loss	77,813	(89,664)
Significant Event	(902,719)	0
Benefits paid	(35,016)	(133,631)
Benefit obligation at end of year	1,566,019	2,096,761
Change in fair value of plan assets [Roll Forward]
Fair value of plan assets at beginning of year	1,448,126	1,391,239
Actual return on plan assets	13,466	56,887
Employer contributions	35,016	133,631
Significant Event	(902,719)	0
Benefits paid	(35,016)	(133,631)
Fair value of plan assets at end of year	558,873	1,448,126
Funded Status [Abstract]
Net amount recognized in the balance sheet	$ (1,007,146)	$ (648,635)