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CASH, CASH EQUIVALENTS, AND MARKETABLE SECURITIES - Schedule of Marketable Securities (Details) - USD ($)
$ in Thousands
Mar. 28, 2025
Sep. 27, 2024
Mar. 29, 2024
Debt Securities, Available-for-Sale [Line Items]      
Amortized Cost $ 4,298 $ 16,518 $ 26,122
Fair Value 4,315 16,541 26,071
Gross unrealized gains 17 23 0
Gross unrealized losses 0 0 51
Fixed rate Canadian Government Bonds      
Debt Securities, Available-for-Sale [Line Items]      
Amortized Cost 4,298 9,025 11,184
Fair Value 4,315 9,045 11,150
Gross unrealized gains 17 20 0
Gross unrealized losses $ 0 0 34
Fixed rate US Government Bonds      
Debt Securities, Available-for-Sale [Line Items]      
Amortized Cost   7,493 14,938
Fair Value   7,496 14,921
Gross unrealized gains   3 0
Gross unrealized losses   $ 0 $ 17