Note 13 - Other Financial Data - Balance Sheet Information (Details) - USD ($) $ in Thousands	Jul. 02, 2022	Oct. 02, 2021
Accounts receivable	$ 81,571	$ 68,274
Less allowance for doubtful accounts	(396)	(357)
Total	81,175	67,917
Raw materials	123,421	50,459
Work in process	8,365	6,680
Finished goods	60,661	21,910
Total	192,447	79,049
Prepaid insurance	4,929	5,169
Other	2,069	4,887
Total	6,998	10,056
Cash surrender value of life insurance policies	10,286	12,501
Right-of-use asset	1,856	1,717
Capitalized financing costs, net	57	106
Assets held for sale	0	6,306
Other	123	137
Total	12,322	20,767
Land and land improvements	14,566	14,554
Buildings	54,408	53,182
Machinery and equipment	191,138	180,654
Construction in progress	10,336	10,191
Property, plant and equipment, gross	270,448	258,581
Less accumulated depreciation	(162,183)	(152,957)
Total	108,265	105,624
Salaries, wages and related expenses	8,122	8,229
Income taxes	2,859	4,014
Customer rebates	2,547	2,354
Property taxes	1,170	1,575
Operating lease liability	1,136	1,030
Sales allowance reserves	1,127	991
State sales and use taxes	453	760
Other	463	453
Total	17,877	19,406
Deferred compensation	13,440	12,832
Deferred Tax Liabilities, Net, Total	6,920	6,296
Operating lease liability	728	695
Total	$ 21,088	$ 19,823