Note 6 - Derivative Financial Instruments (Detail) (USD $)	Oct. 27, 2012	Apr. 28, 2012
Derivative, Notional Amount	$ 12,600,000
Price Risk Cash Flow Hedge Unrealized Gain (Loss) to be Reclassified During Next 12 Months	1,100,000
Derivative Asset, Fair Value, Net	$ 1,100,000	$ 503,000