Note 5 - Accounts and Other Receivables, Net (Details) - Changes in Allowance for Doubtful Accounts (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Mar. 25, 2012
Changes in Allowance for Doubtful Accounts [Abstract]
Beginning balance	$ 130	$ 138	$ 62
Bad debt expense	21	15	86
Uncollectible marketing fund contributions	320	5	0
Accounts written off	(38)	(28)	(10)
Ending balance	$ 433	$ 130	$ 138