DEBT - Additional Information (Details) - USD ($)					12 Months Ended	63 Months Ended	84 Months Ended	163 Months Ended	180 Months Ended
	Jan. 27, 2023	Sep. 01, 2022	Jan. 28, 2022	Dec. 29, 2017	Jul. 26, 2025	May 04, 2027	Dec. 29, 2024	Sep. 01, 2035	Jan. 28, 2037	Jul. 27, 2024	Feb. 28, 2022	Sep. 01, 2020	May 12, 2020
Debt Instrument [Line Items]
Loans receivable				$ 4,835,000
Interest on unrelated party note receivable percentage				1.403%
Third party contribution to investment fund				$ 2,375,000
Notes payable related to New Markets Tax Credit				$ 6,563,000	$ 48,621,000					$ 62,764,000
Interest rate, stated percentage				1.00%
Benefit over recapture period							$ 1,728,000
Total debt, excluding obligations under leases					57,991,000					72,245,000
Line of Credit
Debt Instrument [Line Items]
Basis spread on variable rate		0.57%
Line of Credit | Medium-Term Note
Debt Instrument [Line Items]
Total debt, excluding obligations under leases					12,613,000					$ 17,662,000
Secured Debt
Debt Instrument [Line Items]
Basis spread on variable rate	1.75%
Derivative, fixed rate		3.59%
Effective interest rate net of subsidy	5.34%
Total debt, excluding obligations under leases	$ 7,125,000
Unsecured Debt
Debt Instrument [Line Items]
Basis spread on variable rate		1.35%
Debt term		7 years
Derivative, fixed rate		2.95%
Effective interest rate		4.30%
Effective interest rate net of subsidy		2.30%
Total debt, excluding obligations under leases		$ 10,000,000
Credit Agreement with Wells Fargo National Bank, National Association | Line of Credit | Letter of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity					25,000,000
Debt outstanding					7,438,000
Line of credit, remaining borrowing capacity					$ 67,562,000
Amended and Restated Credit Agreement | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 75,000,000
Basis spread on variable rate			1.25%
Face amount of debt												$ 50,000,000
Debt term					15 years
Amended and Restated Credit Agreement | Line of Credit | Medium-Term Note
Debt Instrument [Line Items]
Face amount of debt													$ 25,500,000
Debt term					7 years
Derivative, fixed rate											0.26%
Effective interest rate											1.72%
Amended and Restated Credit Agreement | Line of Credit | Medium-Term Note | Scenario, Forecast
Debt Instrument [Line Items]
Basis spread on variable rate						1.46%
Amended and Restated Credit Agreement | Secured Debt
Debt Instrument [Line Items]
Face amount of debt			$ 7,350,000
Debt term					15 years
Effective interest rate			2.91%								2.18%
Amended and Restated Credit Agreement | Secured Debt | Scenario, Forecast
Debt Instrument [Line Items]
Basis spread on variable rate								1.61%	1.50%
Interest Rate Swap | Amended and Restated Credit Agreement | Secured Debt
Debt Instrument [Line Items]
Derivative, fixed rate			1.41%