Note 9 - Stock-based Compensation (Details) - Stock Option Activity (USD $)	12 Months Ended
	Mar. 30, 2014	Mar. 31, 2013
Stock Option Activity [Abstract]
Outstanding at Beginning of Period	$ 5.23	$ 3.57
Outstanding at Beginning of Period	145,000	573,000
Granted	$ 6.14	$ 5.42
Granted	100,000	110,000
Exercised	$ 5.12	$ 3.46
Exercised	(60,000)	(521,750)
Expired		$ 0.71
Expired		(1,250)
Forfeited		$ 5.22
Forfeited		(15,000)
Outstanding at End of Period	$ 5.76	$ 5.23
Outstanding at End of Period	185,000	145,000
Exercisable at End of Period	$ 5.16
Exercisable at End of Period	35,000