Note 12 - Other Financial Data - Balance Sheet Information (Details) - USD ($) $ in Thousands	Jul. 01, 2017	Oct. 01, 2016
Accounts receivable, net:
Accounts receivable	$ 42,552	$ 47,680
Less allowance for doubtful accounts	(245)	(291)
Total	42,307	47,389
Inventories:
Raw materials	53,306	45,032
Work in process	3,304	2,788
Finished goods	27,072	23,366
Total	83,682	71,186
Other current assets:
Prepaid insurance	3,355	1,805
Income tax receivable	609
Other	1,218	1,234
Total	5,182	3,039
Other assets:
Cash surrender value of life insurance policies	8,707	7,909
Capitalized financing costs, net	122	170
Other	105	105
Total	8,934	8,184
Property, plant and equipment, net:
Land and land improvements	11,712	9,619
Buildings	49,586	43,739
Machinery and equipment	150,825	143,789
Construction in progress	7,892	11,318
Property, plant and equipment, gross	220,015	208,465
Less accumulated depreciation	(120,632)	(120,272)
Total	99,383	88,193
Accrued expenses:
Salaries, wages and related expenses	4,931	6,619
Customer rebates	1,040	1,296
Property taxes	821	1,328
Sales allowance reserves	147	577
Workers' compensation	120	127
Restructuring liabilities	18	239
Other	529	838
Total	7,606	11,024
Other liabilities:
Deferred compensation	9,467	9,071
Deferred Tax Liabilities, Net, Noncurrent	8,177	5,472
Total	$ 17,644	$ 14,543