Consolidated Statements of Shareholders' Equity (Unaudited) (USD $) In Thousands	Total	Accumulated Other Comprehensive Income (Loss) [Member]	Additional Paid-in Capital [Member]	Common Stock [Member]	Retained Earnings [Member]	Series C Preferred Stock [Member]	Series C Preferred Stock [Member] Preferred Stock [Member]	Series C Preferred Stock [Member] Treasury Stock [Member]	Series D Preferred Stock [Member]	Series D Preferred Stock [Member] Preferred Stock [Member]	Common Treasury Stock [Member]	Common Treasury Stock [Member] Treasury Stock [Member]
Beginning of period at Apr. 27, 2013					$ 37,828
Beginning of period at Apr. 27, 2013		(964)
Beginning of period at Apr. 27, 2013										400
Beginning of period at Apr. 27, 2013			50,398
Series D preferred redeemed
Stock-based compensation			24
Other			(53)
Net income	24,567				24,567
Preferred stock dividends and accretion					(299)
Cash flow hedges	41	41
End of period at Oct. 26, 2013		(923)
End of period at Oct. 26, 2013								(5,100)				(12,900)
Total Shareholders' Equity at Oct. 26, 2013	94,596
End of period at Oct. 26, 2013					62,096
End of period at Oct. 26, 2013							150			400
End of period at Oct. 26, 2013				504
End of period at Oct. 26, 2013			50,369
Beginning of period at May. 03, 2014	80,737				80,737
Beginning of period at May. 03, 2014	(205)	(205)
Beginning of period at May. 03, 2014						150			240	240
Beginning of period at May. 03, 2014	42,775		42,775
Series D preferred redeemed										(120)
Series D preferred redeemed			(5,791)
Stock-based compensation			131
Other			55
Net income	28,321				28,321
Preferred stock dividends and accretion					(200)
Cash flow hedges	611	611
End of period at Nov. 01, 2014	406	406
End of period at Nov. 01, 2014						(5,100)		(5,100)			(12,900)	(12,900)
Total Shareholders' Equity at Nov. 01, 2014	129,208
End of period at Nov. 01, 2014	108,858				108,858
End of period at Nov. 01, 2014						150	150		120	120
End of period at Nov. 01, 2014	504			504
End of period at Nov. 01, 2014	$ 37,170		$ 37,170