Note 17 - Other Financial Data - Balance Sheet Information (Details) - USD ($)	Oct. 03, 2015	Sep. 27, 2014
Accounts receivable, net:
Accounts receivable	$ 47,420,000	$ 52,099,000
Less allowance for doubtful accounts	(638,000)	(888,000)
Total	46,782,000	51,211,000
Inventories:
Raw materials	38,457,000	49,200,000
Work in process	2,968,000	3,789,000
Finished goods	24,584,000	28,910,000
Total	66,009,000	81,899,000
Other current assets:
Prepaid insurance	2,519,000	1,890,000
Current deferred tax asset	1,492,000	2,122,000
Other	1,298,000	2,421,000
Total	5,309,000	6,433,000
Other assets:
Cash surrender value of life insurance policies	7,194,000	6,867,000
Capitalized financing costs, net	227,000	69,000
Other	97,000	99,000
Total	7,518,000	7,035,000
Property, plant and equipment, net:
Land and land improvements	9,279,000	9,704,000
Buildings	43,016,000	42,047,000
Machinery and equipment	142,662,000	133,699,000
Construction in progress	1,715,000	7,648,000
Property, plant and equipment, gross	196,672,000	193,098,000
Less accumulated depreciation	(112,494,000)	(102,712,000)
Total	84,178,000	90,386,000
Accrued expenses:
Salaries, wages and related expenses	5,455,000	$ 4,659,000
Income taxes	2,187,000
Customer rebates	1,760,000	$ 1,530,000
Property taxes	1,507,000	1,242,000
Pension plan	1,263,000	825,000
Restructuring Reserve, Current	505,000	481,000
Workers' compensation	294,000	290,000
Deferred revenues	$ 105,000	525,000
Interest		28,000
Other	$ 568,000	795,000
Total	13,644,000	10,375,000
Other liabilities:
Deferred compensation	7,765,000	7,426,000
Deferred income taxes	6,057,000	6,572,000
Other	376,000	728,000
Total	$ 14,198,000	$ 14,726,000