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COMMITMENTS, CONTINGENCIES AND CONCENTRATIONS (Reserve for product warranty activity) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jul. 01, 2023
Jul. 02, 2022
Jul. 01, 2023
Jul. 02, 2022
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]        
Reserve for warranty, beginning of period $ 10,468 $ 15,518 $ 13,443 $ 16,961
Provision for warranty 4,007 2,842 8,989 9,001
Utilization of reserve (3,908) (4,118) (11,865) (11,720)
Reserve for warranty, end of period $ 10,567 $ 14,242 $ 10,567 $ 14,242