Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jul. 27, 2013	Jul. 28, 2012
Operating Activities:
Net income	$ 12,070	$ 14,392
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	2,948	2,953
Deferred income tax benefit	(57)	(163)
Loss on disposal of property, net	14	3
Stock-based compensation	37	86
Changes in assets and liabilities:
Trade receivables	1,523	(3,521)
Inventories	(4,583)	(3,206)
Prepaid and other assets	564	(825)
Accounts payable	317	(2,253)
Accrued and other liabilities	5,338	4,873
Net cash provided by operating activities	18,171	12,339
Investing Activities:
Additions to property, plant and equipment	(2,397)	(1,397)
Proceeds from sale of property, plant and equipment		9
Net cash used in investing activities	(2,397)	(1,388)
Financing Activities:
Dividends paid on preferred stock	(150)
Repayments under credit facilities	(5,000)
Proceeds from stock options exercised	4	24
Stock-based tax benefits	3	4
Net cash (used in) provided by financing activities	(5,143)	28
Net Increase in Cash and Equivalents	10,631	10,979
Cash and Equivalents - Beginning of Year	18,267	35,626
Cash and Equivalents - End of Period	28,898	46,605
Other Cash Flow Information:
Interest paid	223	32
Income taxes paid	$ 770	$ 487