Consolidated Statements of Shareholders' Equity (USD $) In Thousands, unless otherwise specified	Preferred Stock [Member] Series C Preferred Stock [Member]	Preferred Stock [Member] Series D Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Preferred Treasury Stock [Member]	Common Treasury Stock [Member]	Total
Shareholders' equity at Apr. 28, 2012	$ 150		$ 503	$ 30,425	$ 109,200	$ (642)	$ (5,100)	$ (12,900)
Series C Preferred Stock
Cash flow hedges, net of tax						(380)			(380)
Net income					26,409				26,409
Stock-based compensation				156					156
Other				151
Shareholders' equity, end of period at Oct. 27, 2012				30,732	135,609	(1,022)			147,972
Shareholders' equity at Apr. 27, 2013	150	400	504	50,398	37,828	(964)	(5,100)	(12,900)	70,316
Series C Preferred Stock
Cash flow hedges, net of tax						41			41
Net income					24,567				24,567
Preferred stock cash dividend					(299)
Stock-based compensation				24					24
Other				(53)
Shareholders' equity, end of period at Oct. 26, 2013				$ 50,369	$ 62,096	$ (923)			$ 94,596