EMPLOYEE BENEFIT PLANS (Plan Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021	Dec. 28, 2019
Defined Benefit Plan Disclosure [Line Items]
Contribution	$ 300
Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	68,689	$ 65,417	$ 61,961
Pension Plans \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	68,465	65,173
Pension Plans \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	224	244
Pension Plans \| Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,370	644
Pension Plans \| Cash and Cash Equivalents [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,370	644
Pension Plans \| Cash and Cash Equivalents [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Plans \| U.S. Large-Cap blend [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	7,508	9,006
Pension Plans \| U.S. Large-Cap blend [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	7,508	9,006
Pension Plans \| U.S. Large-Cap blend [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Plans \| U.S. Large-Cap growth [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3,390	4,105
Pension Plans \| U.S. Large-Cap growth [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3,390	4,105
Pension Plans \| U.S. Large-Cap growth [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Plans \| U.S. Mid-Cap growth [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3,426	3,913
Pension Plans \| U.S. Mid-Cap growth [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3,426	3,913
Pension Plans \| U.S. Mid-Cap growth [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Plans \| U.S. Small-Cap blend [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,054	2,608
Pension Plans \| U.S. Small-Cap blend [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,054	2,608
Pension Plans \| U.S. Small-Cap blend [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Plans \| International blend [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8,200	9,882
Pension Plans \| International blend [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8,200	9,882
Pension Plans \| International blend [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Plans \| Corporate Bond Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	39,970	31,995
Pension Plans \| Corporate Bond Securities [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	39,746	31,751
Pension Plans \| Corporate Bond Securities [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	224	244
Pension Plans \| Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,771	3,264
Pension Plans \| Real Estate [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,771	3,264
Pension Plans \| Real Estate [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0	$ 0