Note 8 Acquisition (Details) - USD ($) $ in Thousands	6 Months Ended	9 Months Ended
	Apr. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Business Acquisition [Line Items]
Promissory note description		non-interest bearing promissory notes
Current assets	$ 33,198
Noncurrent assets	62,632
Current liabilities	(3,146)
Noncurrent liabilities	(725)
Total	91,959
Bargain purchase gain	(1,642)
Consideration transferred	90,317
Cash portion of consideration transferred, net of cash acquired	60,200
Discounted Value of Notes Issued	30,100	$ 0	$ 30,105
Cash Acquired from Acquisition	1,300
Goodwill	30,800
Intangible sssets, other than goodwill	$ 7,300
Storage Software Provider [Member]
Business Acquisition [Line Items]
Goodwill recognized, description		Goodwill arising from the acquisition is tax deductible and reflects the Company's expectation that the acquisition will enable the Company to broaden its relationships with certain of its existing key customers, realize synergies associated with leveraging the acquisition to develop other software solutions to become a provider of a full storage systems solution, and leverage the acquiree's knowledgeable and experienced workforce.
Manufacturing Facility [Member]
Business Acquisition [Line Items]
Bargain purchase gain, description		The bargain purchase gain resulted from the discount attributable to financing a portion of the purchase price with the acquiree using a non-interest bearing promissory note.
Minimum [Member] | Storage Software Provider [Member]
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life	3 years
Maximum [Member] | Storage Software Provider [Member]
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life	4 years