Note 11 - Stockholders' Equity, Stock Plans and Other Employee Benefit Plans (Detail) - Compensation cost charged to expense under all stock based incentive awards is as follows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 25, 2012	Mar. 27, 2011
Share-based compensation expense	$ 627	$ 274	$ 378
Stock Options [Member]
Share-based compensation expense	224	274	378
Restricted Stock [Member]
Share-based compensation expense	$ 403	$ 0	$ 0