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Shares Tendered Back to Company

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Discount rate from fair value on purchase date that participants pay for shares.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

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Number of shares of capital stock issued (purchased by employees) in connection with an employee stock ownership plan.

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STOCK-BASED COMPENSATION AND STOCK OWNERSHIP PLANS - Narrative (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Mar. 02, 2017	Jun. 28, 2024	Jun. 30, 2023	Jun. 28, 2024	Jun. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant (in shares)		404,593		404,593
Award performance period (in years)				3 years
Employee stock purchase plan, purchase price (in percent)	85.00%
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Bonus achievement target level (in percent)				80.00%
Bonus payout as a percentage of target award				50.00%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Bonus achievement target level (in percent)				120.00%
Bonus payout as a percentage of target award				150.00%
Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock purchase plan shares issued (in shares)		4,937	5,401	4,937	5,401
Non-Vested Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares tendered for tax withholding (in shares)				2,330	2,289
Stock-based compensation expense (income), net of forfeitures		$ 398	$ 172	$ 1,148	$ 1,117
Unrecognized stock-based compensation expense		2,085		2,085
Fair value of vested restricted stock				$ 964	1,029
Non-Vested Stock \| Director \| Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)				1 year
Non-Vested Stock \| Employees \| Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)				4 years
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense (income), net of forfeitures		201	28	$ (239)	953
Unrecognized stock-based compensation expense		1,634		1,634
Fair value of vested restricted stock				$ 1,171	$ 2,555
Shares tendered back to company (in shares)				2,331	5,324
Restricted Stock Units (RSUs) \| Vesting Period 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)				1 year
Restricted Stock Units (RSUs) \| Vesting Period 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)				3 years
Employee Stock \| Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense (income), net of forfeitures		$ (25)	$ 18	$ 83	$ 72