Note 10 - Income Taxes (Details) - Reconciliation of Unrecognized Tax Benefits (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Mar. 25, 2012
Reconciliation of Unrecognized Tax Benefits [Abstract]
Unrecognized tax benefits, beginning of year	$ 296	$ 422	$ 318
Decreases of tax positions taken in prior years	(34)	(50)	(41)
Increase based on tax positions taken in current year	21	34	26
Settlements of tax positions taken in prior years	0	(110)	0
Increase based on tax positions taken in prior years	0	0	119
Unrecognized tax benefits, end of year	$ 283	$ 296	$ 422