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CASH, CASH EQUIVALENTS, AND MARKETABLE SECURITIES - Schedule of Marketable Securities (Details) - USD ($) $ in Thousands	Dec. 27, 2024	Sep. 27, 2024	Dec. 29, 2023
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 6,325	$ 16,518	$ 33,788
Fair Value	6,347	16,541	33,762
Gross unrealized gains	22	23	6
Gross unrealized losses	0	0	32
Fixed rate US Government Bonds
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	0	7,493	22,365
Fair Value	0	7,496	22,371
Gross unrealized gains	0	3	6
Gross unrealized losses	0	0	0
Fixed rate Canadian Government Bonds
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	6,325	9,025	11,423
Fair Value	6,347	9,045	11,391
Gross unrealized gains	22	20	0
Gross unrealized losses	$ 0	$ 0	$ 32

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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