Note 3 Other Operating Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Oct. 01, 2016
Other Operating Expense [Abstract]
Amortization of intangible assets	$ 2,908	$ 3,672	$ 3,446
Asset impairments	0	4,600	1,000
Gain on sale of long-lived assets	0	(1,451)	0
Total operating expenses	$ 2,908	$ 6,821	$ 4,446