Note 18 - Segment and Geographic Information (Details) - Major Distributors of Net Accounts Receivable - Accounts Receivable [Member] - Customer Concentration Risk [Member]		6 Months Ended		12 Months Ended
		Sep. 28, 2014		Mar. 29, 2015
Customer D [Member]
Note 18 - Segment and Geographic Information (Details) - Major Distributors of Net Accounts Receivable [Line Items]
Net accounts receivable		19.00%		10.00%
Distributor A [Member]
Note 18 - Segment and Geographic Information (Details) - Major Distributors of Net Accounts Receivable [Line Items]
Net accounts receivable	[1]	17.00%		6.00%
Distributor E [Member]
Note 18 - Segment and Geographic Information (Details) - Major Distributors of Net Accounts Receivable [Line Items]
Net accounts receivable		11.00%		12.00%
Distributor B [Member]
Note 18 - Segment and Geographic Information (Details) - Major Distributors of Net Accounts Receivable [Line Items]
Net accounts receivable		0.00%	[2]	11.00%
Distributor D [Member]
Note 18 - Segment and Geographic Information (Details) - Major Distributors of Net Accounts Receivable [Line Items]
Net accounts receivable		0.00%	[2]	10.00%

[1] Related Party

[2] Accounts receivable for this distributor for this period were less than 10% of total account balance.