Note 13 - Other Financial Data - Balance Sheet Information (Details) - USD ($) $ in Thousands	Jan. 02, 2021	Oct. 03, 2020
Accounts receivable	$ 49,489	$ 54,108
Less allowance for doubtful accounts	(265)	(291)
Total	49,224	53,817
Raw materials	27,015	31,553
Work in process	3,637	3,813
Finished goods	33,624	33,597
Total	64,276	68,963
Prepaid insurance	3,582	4,096
Other	1,619	1,474
Total	5,201	5,570
Cash surrender value of life insurance policies	11,127	10,584
Assets held for sale	7,754	7,778
Other assets	2,494	2,522
Capitalized financing costs, net	155	170
Other	111	106
Total	21,641	21,160
Land and land improvements	14,540	14,520
Buildings	52,501	52,462
Machinery and equipment	172,268	172,617
Construction in progress	5,717	3,978
Property, plant and equipment, gross	245,026	243,577
Less accumulated depreciation	(143,675)	(142,185)
Total	101,351	101,392
Salaries, wages and related expenses	4,555	4,971
Income taxes	3,636	1,201
Customer rebates	2,304	1,581
Property taxes	1,445	1,726
Operating lease liability	1,284	1,230
Holdback for business acquired	1,000	1,000
State sales and use taxes	315	544
Other	473	2,464
Total	15,012	14,717
Deferred compensation	11,722	11,553
Deferred Tax Liabilities, Net, Total	6,504	6,568
Operating lease liability	1,218	1,300
Total	$ 19,444	$ 19,421