Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	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]	AOCI Attributable to Parent [Member]	Treasury Stock, Preferred [Member] Series C Preferred Stock [Member]	Treasury Stock, Common [Member]	Total
Balance at Oct. 31, 2015	$ 150	$ 120	$ 505	$ 38,539	$ 162,123	$ (4,553)	$ (5,100)	$ (12,900)	$ 178,884
Balance at May. 02, 2015			504	37,759	129,773	(2,524)
Stock options exercised			1	441
Stock-based compensation				128
Stock-based tax benefits				211
Net income					32,425				32,425
Preferred stock dividends					(75)
Cash flow hedges						(2,029)			(2,029)
Balance at Oct. 29, 2016	$ 150		506	34,844	244,332	(552)	$ (5,100)	$ (12,900)	261,280
Balance at Apr. 30, 2016			506	34,570	190,733	(1,807)			206,152
Stock options exercised				100
Stock-based compensation				98
Stock-based tax benefits				$ 76
Net income					53,599				53,599
Preferred stock dividends
Cash flow hedges						$ 1,255			$ 1,255