Note 3 - Intangible Assets and Goodwill (Details) (USD $)	2 Months Ended	3 Months Ended
	Jul. 01, 2012	Jul. 31, 2013	Apr. 30, 2013	Jul. 31, 2012
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of Intangible Assets	$ 51,000	$ 51,000
Goodwill		$ 1,942,000	$ 1,942,000	$ 1,942,000