Note 20 - Allowances for Sales Returns and Doubtful Accounts (Details) - Allowance for Sales Returns and Allowance and for Doubtful Accounts (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 30, 2014		Mar. 31, 2013		Apr. 01, 2012
Allowance for Sales Returns [Member]
Allowance for sales returns:
Beginning Balance	$ 1,084		$ 1,429		$ 1,245
Additions	17,004		15,176		15,701
Utilizations	16,414	[1]	15,521	[1]	15,517	[1]
Ending Balance	1,674		1,084		1,429
Allowance for Doubtful Accounts [Member]
Allowance for sales returns:
Beginning Balance	206		167		278
Additions	(25)		39		69
Utilizations	70	[1]		[1]	180	[1]
Ending Balance	$ 111		$ 206		$ 167

[1] Utilization amounts within allowance for sales returns reflect credits issued to distributors for stock rotations and volume discounts.