Note 16 - Other Financial Data - Balance Sheet Information (Details) - USD ($) $ in Thousands	Oct. 01, 2022	Oct. 02, 2021
Accounts receivable	$ 82,043	$ 68,274
Less allowance for credit losses	(397)	(357)
Total	81,646	67,917
Raw materials	108,894	50,459
Work in process	8,817	6,680
Finished goods	79,943	21,910
Total	197,654	79,049
Prepaid insurance	4,563	5,169
Other	3,153	4,887
Total	7,716	10,056
Cash surrender value of life insurance policies	9,938	12,501
Disposal Group, Including Discontinued Operation, Assets, Total	0	6,306
Capitalized financing costs, net	41	106
Other	121	137
Total	11,665	20,767
Land and land improvements	14,947	14,554
Buildings	55,044	53,182
Machinery and equipment	191,790	180,654
Construction in progress	11,745	10,191
Property, Plant and Equipment, Gross, Ending Balance	273,526	258,581
Less accumulated depreciation	(165,370)	(152,957)
Total	108,156	105,624
Salaries, wages and related expenses	8,128	8,229
Customer rebates	2,760	2,354
Property taxes	1,782	1,575
Sales allowance reserves	1,013	991
State sales and use taxes	595	760
Income taxes	0	4,014
Other	525	453
Total	15,800	19,406
Deferred compensation	11,747	12,832
Deferred Tax Liabilities, Net, Total	7,086	6,296
Total	19,405	19,823
Other Noncurrent Assets [Member]
Other assets	1,565	1,717
Accrued Expenses, Current [Member]
Accrued expenses	997	1,030
Other Noncurrent Liabilities [Member]
Operating lease liabilities	$ 572	$ 695