SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of The Changes in AOCI by Component) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2022	Oct. 01, 2021
AOCI Attributable To Parent Net Of Tax (Roll Forward)
Balance, beginning of period	$ 458,505
Other comprehensive income before reclassifications	(6,795)	$ 2,450
Amounts reclassified from accumulated other comprehensive income	45	576
Tax effects	(16)	(357)
Balance, end of period	488,014	458,505
Foreign Currency Translation Adjustment
AOCI Attributable To Parent Net Of Tax (Roll Forward)
Balance, beginning of period	7,606	7,323
Other comprehensive income before reclassifications	(6,815)	283
Amounts reclassified from accumulated other comprehensive income	0	0
Tax effects	0	0
Balance, end of period	791	7,606
Unamortized Loss on Defined Benefit Pension Plans
AOCI Attributable To Parent Net Of Tax (Roll Forward)
Balance, beginning of period	(220)	(2,606)
Other comprehensive income before reclassifications	20	2,167
Amounts reclassified from accumulated other comprehensive income	45	576
Tax effects	(16)	(357)
Balance, end of period	(171)	(220)
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable To Parent Net Of Tax (Roll Forward)
Balance, beginning of period	7,386	4,717
Balance, end of period	$ 620	$ 7,386