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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Apr. 27, 2013	Apr. 28, 2012
CURRENT ASSETS
Allowance, accounts receivable	$ 1,022	$ 1,279
Common Stock:
par value	$ 0.50	$ 0.50
shares authorized	100,000,000	100,000,000
shares issued	38,455,853	38,375,678
Treasury Stock:
shares issued	1,342,188	1,342,188

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A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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