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VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($)
$ in Thousands
 12 Months Ended
Oct. 01, 2021
Oct. 02, 2020
Sep. 27, 2019
Allowance for doubtful accounts      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Year $ 2,697 $ 2,550 $ 1,637
Additions Charged to Costs and Expenses 308 2,095 2,003
Less Deductions 511 1,948 1,090
Balance at End of Year 2,494 2,697 2,550
Reserves for inventory valuation      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Year 5,385 5,223 5,124
Additions Charged to Costs and Expenses 518 878 1,009
Less Deductions 355 716 910
Balance at End of Year 5,548 5,385 5,223
Valuation of deferred tax assets      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Year 6,524 5,964 6,402
Additions Charged to Costs and Expenses 1,352 875 430
Less Deductions 1,504 315 868
Balance at End of Year 6,372 6,524 5,964
Reserves for sales returns      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Year 3,043 4,880 1,532
Additions Charged to Costs and Expenses 1,705 1,532 7,040
Less Deductions 2,653 3,369 3,692
Balance at End of Year $ 2,095 $ 3,043 $ 4,880