STOCK-BASED COMPENSATION AND STOCK OWNERSHIP PLANS (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 27, 2024	Sep. 29, 2023	Sep. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares paid for tax withholding (in shares)	7,744	2,289
Award performance period (in years)	3 years
Discount from fair market value (not less than)	85.00%
Employee stock purchase plan, expense	$ 105	$ 102	$ 355
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Bonus achievement target level (as 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 (as percent)	120.00%
Bonus payout as a percentage of target award	150.00%
Restricted Stock and Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense	$ 351	95
Additional tax benefit			98
Non-Vested Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense	1,690	1,612	1,252
Additional tax benefit	$ 410	390	295
Award vesting period (in years)	5 years
Fair value of vested restricted stock	$ 1,562	909	1,002
Unrecognized compensation cost	1,552
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense	43	732	2,522
Additional tax benefit	503	462	242
Fair value of vested restricted stock	1,171	$ 2,247	$ 3,240
Unrecognized compensation cost	$ 0
Shares tendered back to company (in shares)	2,331	5,324
Restricted Stock Units (RSUs) \| Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)	1 year
Restricted Stock Units (RSUs) \| Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)	3 years
Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant under plan (in shares)	401,833
Employee stock purchase plan, shares issued (in shares)	4,937	5,401	5,112

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