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Detail of Selected Balance Sheet Accounts - Narrative (Details) - USD ($)
12 Months Ended
Jul. 01, 2024
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2022
Property, Plant and Equipment [Line Items]        
Finance lease, assets   $ 0 $ 0  
Depreciation   6,871,000 8,606,000 $ 9,358,000
Purchase price for property, plant and equipment   $ 11,983,000 $ 7,819,000 $ 2,451,000
TEXAS | Land and Building        
Property, Plant and Equipment [Line Items]        
Purchase price for property, plant and equipment $ 5,600,000