Note 18 - Segment and Geographic Information (Details) - Major Distributors of Net Accounts Receivable (Accounts Receivable [Member], Customer Concentration Risk [Member])	9 Months Ended		12 Months Ended
	Dec. 28, 2014		Mar. 30, 2014
Distributor A [Member]
Note 18 - Segment and Geographic Information (Details) - Major Distributors of Net Accounts Receivable [Line Items]
Distributor		[1]	16.00%
Distributor B [Member]
Note 18 - Segment and Geographic Information (Details) - Major Distributors of Net Accounts Receivable [Line Items]
Distributor	12.00%	[1]	17.00%
Distributor C [Member]
Note 18 - Segment and Geographic Information (Details) - Major Distributors of Net Accounts Receivable [Line Items]
Distributor	11.00%	[1]	12.00%
Distributor D [Member]
Note 18 - Segment and Geographic Information (Details) - Major Distributors of Net Accounts Receivable [Line Items]
Distributor		[1]	14.00%
Distributor F [Member]
Note 18 - Segment and Geographic Information (Details) - Major Distributors of Net Accounts Receivable [Line Items]
Distributor	13.00%			[1]

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