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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of The Changes in AOCI by Component) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 27, 2024
Sep. 29, 2023
AOCI Attributable To Parent Net Of Tax (Roll Forward)    
Balance, beginning of period $ 499,737  
Other comprehensive income before reclassifications 2,661 $ 2,627
Amounts reclassified from accumulated other comprehensive income 39 45
Tax effects (59) 31
Balance, end of period 463,424 499,737
Foreign Currency Translation Adjustment    
AOCI Attributable To Parent Net Of Tax (Roll Forward)    
Balance, beginning of period 3,581 791
Other comprehensive income before reclassifications 2,475 2,790
Amounts reclassified from accumulated other comprehensive income 0 0
Tax effects 0 0
Balance, end of period 6,056 3,581
Unrealized gain (loss) on available-for-sale securities    
AOCI Attributable To Parent Net Of Tax (Roll Forward)    
Balance, beginning of period (121) 0
Other comprehensive income before reclassifications 186 (163)
Amounts reclassified from accumulated other comprehensive income 0 0
Tax effects (48) 42
Balance, end of period 17 (121)
Unamortized Loss on Defined Benefit Pension Plans    
AOCI Attributable To Parent Net Of Tax (Roll Forward)    
Balance, beginning of period (137) (171)
Other comprehensive income before reclassifications 0 0
Amounts reclassified from accumulated other comprehensive income 39 45
Tax effects (11) (11)
Balance, end of period (109) (137)
Accumulated Other Comprehensive Income (Loss)    
AOCI Attributable To Parent Net Of Tax (Roll Forward)    
Balance, beginning of period 3,323 620
Balance, end of period $ 5,964 $ 3,323