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SHARE-BASED COMPENSATION- Narrative (Details) - USD ($)	12 Months Ended
SHARE-BASED COMPENSATION- Narrative (Details) - USD ($)	Jan. 01, 2023	Dec. 26, 2021	Dec. 27, 2020	Nov. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Capital shares reserved for future issuance (in shares)	1,012,967			250,000
Conversion of stock, shares issued (in shares)	0	213	0
Exercised (in shares)		(600)
Issuance of ESPP shares (in shares)	59,506	31,776
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost related to stock awards	$ 700,000	$ 600,000	$ 500,000
Unamortized stock compensation expense	$ 900,000
Unamortized stock compensation expense, recognition period	2 years 8 months 12 days
Exercised (in shares)	(1,000)	(1,350)
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost related to stock awards	$ 400,000	$ 500,000	300,000
Unamortized stock compensation expense	$ 600,000
Unamortized stock compensation expense, recognition period	1 year 9 months 18 days
Warrant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost related to stock awards	$ 0	$ 0	$ 0
Unamortized stock compensation expense	$ 0
Long Term Incentive Plan 2013 \| Vested Immediately
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights, percentage	20.00%
Long Term Incentive Plan 2013 \| Vesting Over Four Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights, percentage	20.00%
Maximum \| Long Term Incentive Plan 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period, options (in years)	10 years