Consolidated Statements of Shareholders' Equity (Unaudited) (USD $) In Thousands	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
Beginning of period at Apr. 30, 2011	$ 150	$ 503	$ 29,725	$ 65,207	$ 2,751
Cash flow hedges, net of tax					(2,736)			(2,736)
Net income				32,462				32,462
Stock options exercised			100
Stock-based compensation			224					224
Stock-based tax benefits			131
End of period at Jan. 28, 2012	150	503	30,180	97,669	15	(5,100)	(12,900)	110,517
Beginning of period at Apr. 28, 2012	150	503	30,425	109,200	(642)			121,636
Cash flow hedges, net of tax					235			235
Net income				34,823				34,823
Common stock cash dividend				(118,139)				118,139
Preferred stock cash dividend				(3)
Stock options exercised		1	238
Stock-based compensation			183					183
Stock-based tax benefits			92
Preferred stock issued	400		19,310
End of period at Jan. 26, 2013	$ 550	$ 504	$ 50,248	$ 25,881	$ (407)	$ (5,100)	$ (12,900)	$ 58,776