Note 12 - Other Financial Data - Balance Sheet Information (Details) - USD ($) $ in Thousands	Jun. 29, 2019	Sep. 29, 2018
Accounts receivable	$ 51,024	$ 51,779
Less allowance for doubtful accounts	(281)	(295)
Total	50,743	51,484
Raw materials	52,279	61,008
Work in process	5,953	4,779
Finished goods	46,392	28,370
Total	104,624	94,157
Prepaid insurance	4,210	3,845
Income tax receivable	1,359
Other	1,342	2,050
Total	6,911	5,895
Cash surrender value of life insurance policies	10,211	9,769
Capitalized financing costs, net	235	40
Other	114	104
Total	10,560	9,913
Land and land improvements	14,512	14,438
Buildings	56,370	54,684
Machinery and equipment	165,824	160,068
Construction in progress	5,196	9,672
Property, plant and equipment, gross	241,902	238,862
Less accumulated depreciation	(134,571)	(132,714)
Total	107,331	106,148
Salaries, wages and related expenses	1,950	6,775
Property taxes	1,227	1,585
Customer rebates	1,188	1,531
Sales allowance reserves	1,028	804
Workers' compensation	112	113
Income taxes		469
Other	891	652
Total	6,396	11,929
Deferred compensation	11,231	10,541
Deferred Tax Liabilities, Net, Noncurrent	7,533	5,340
Total	$ 18,764	$ 15,881