Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jan. 26, 2013	Jan. 28, 2012
Operating Activities:
Net income	$ 34,823	$ 32,462
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,435	7,963
Deferred income tax benefit	(453)	(391)
Loss (gain) on disposal of property, net	56	(12)
Stock-based compensation	183	224
Changes in assets and liabilities:
Trade receivables	10,413	5,726
Inventories	(800)	(4,805)
Prepaid and other assets	(1,540)	(1,157)
Accounts payable	(19,949)	(12,346)
Accrued and other liabilities	(4,198)	(9,163)
Net cash provided by operating activities	26,970	18,501
Investing Activities:
Additions to property, plant and equipment	(6,025)	(6,172)
Proceeds from sale of property, plant and equipment	22	29
Net cash used in investing activities	(6,003)	(6,143)
Financing Activities:
Common stock cash dividend	(118,139)
Borrowings under credit facilities, net	60,000
Proceeds from sale of preferred stock, net	19,710
Proceeds from stock options exercised	239	100
Stock-based tax benefits	92	131
Net cash (used in) provided by financing activities	(38,098)	231
Net (Decrease) Increase in Cash and Equivalents	(17,131)	12,589
Cash and Equivalents - Beginning of Year	35,626	7,372
Cash and Equivalents - End of Period	18,495	19,961
Other Cash Flow Information:
Interest paid	160	82
Income taxes paid	$ 17,527	$ 17,153