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Note A - Summary of Significant Accounting Policies (Details Textual) $ in Thousands	12 Months Ended
	Sep. 28, 2024 USD ($) shares	Sep. 30, 2023 USD ($) shares	Sep. 24, 2022 USD ($) shares
Contract with Customer, Asset, Allowance for Deductions	$ 21,900	$ 18,900
Accounts Receivable, Allowance for Credit Loss	3,200	3,200
Cash, Uninsured Amount	25,300
Accounts Receivable, after Allowance for Credit Loss	$ 189,200	198,100
Employees Covered Under Collective Bargaining Agreement, Percentage	30.00%
Unrecognized Tax Benefits	$ 343	343
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	$ 300	$ 300
Effective Income Tax Rate Reconciliation, Percent	27.20%	26.60%	23.50%
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares	152,381	252,044	287,558
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares) | shares	0	0
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate			25.80%
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate			0.80%
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate			1.60%
Advertising Expense	$ 11,100	$ 9,700	$ 7,000
Unrecorded Unconditional Purchase Obligation	122,000
Research and Development Expense	$ 1,200	$ 1,200	$ 700
Five Year Options [Member]
Share Based Compensation Arrangement by Share Based Payment Award Fair Value Assumptions Volatility Calculation Term (Month)			51 months
Ten Year Options [Member]
Share Based Compensation Arrangement by Share Based Payment Award Fair Value Assumptions Volatility Calculation Term (Month)			10 years
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period | shares	25,957	21,864	9,200
Performance Shares [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period | shares	14,476	21,260	8,868
Revenue Benchmark [Member] | Customer Concentration Risk [Member]
Number of Major Customers	10	10	10
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	2 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term			4 years
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	20 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term			10 years
Customer Group One [Member]
Approximate Number of Customers	24
Customer Group One [Member] | Minimum [Member]
Accounts Receivable, after Allowance for Credit Loss	$ 1,000
Customer Group One [Member] | Maximum [Member]
Accounts Receivable, after Allowance for Credit Loss	$ 10,000
Balance Over 10 Million [Member]
Number of Major Customers	5
Balance Over 10 Million [Member] | Minimum [Member]
Accounts Receivable, after Allowance for Credit Loss	$ 10,000
Largest Customer [Member]
Accounts Receivable, after Allowance for Credit Loss	$ 22,000
Largest Customer [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member]
Concentration Risk, Percentage	9.00%	9.00%	8.00%
Top Ten Customers [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member]
Concentration Risk, Percentage	45.00%	43.00%	43.00%

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