Note 6 - Derivative Financial Instruments (Details) - Derivatives Instruments Statements of Financial Performance and Financial Position (USD $) In Thousands, unless otherwise specified	12 Months Ended
	May 03, 2014	Apr. 27, 2013	Apr. 28, 2012
Recognized in AOCI-
Loss before income taxes	$ (1,059)	$ (2,521)	$ (4,484)
Less income tax benefit	(393)	(935)	(1,642)
Net	(666)	(1,586)	(2,842)
Reclassified from AOCI to cost of sales-
(Loss) gain before income taxes	(2,028)	(2,060)	290
Less income tax (benefit) provision	(752)	(769)	69
Net	(1,276)	(1,291)	221
Net change to AOCI	$ 610	$ (295)	$ (3,063)