Note 11 - Share-Based Compenseation (Details) - Outstanding stock options (USD $)	9 Months Ended	12 Months Ended
	Dec. 29, 2013	Mar. 31, 2013
Outstanding stock options [Abstract]
Shares		429,500
Weighted-Average Exercise Price (in Dollars per share)		$ 13.29
Weighted-Average Remaining Contractual Life	2 years 80 days	2 years 266 days
Aggregate Intrinsic Value (in Dollars)		$ 12,437,000
Options exercisable at December 29, 2013	233,250
Options exercisable at December 29, 2013 (in Dollars per share)	$ 13.27
Options exercisable at December 29, 2013	2 years 47 days
Options exercisable at December 29, 2013 (in Dollars)	8,758,000
Exercised	(107,500)
Exercised (in Dollars per share)	$ 9.66
Shares	322,000
Weighted-Average Exercise Price (in Dollars per share)	$ 14.51
Weighted-Average Remaining Contractual Life	2 years 80 days	2 years 266 days
Aggregate Intrinsic Value (in Dollars)	$ 11,693,000