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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Balance at Beginning of Period at Apr. 27, 2013	$ 188,246	$ 37,429	$ 27,194	$ 123,750	$ (9)	$ (118)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	22,206			22,206
Cumulative translation adjustments	147					147
Unrealized gain (loss) on available-for-sale securities, net of tax	(25)					(25)
Net tax benefit related to share-based compensation	119		119
Share-based compensation	2,897		2,897
Exercise of stock options	4,667	4,954	(287)
Employee savings plan activity	1,552	1,552
Dividends paid	(16,690)			(16,690)
Balance at End of Period at Apr. 26, 2014	203,119	43,935	29,923	129,266	(9)	4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	20,882			20,882
Cumulative translation adjustments	(2,358)					(2,358)
Unrealized gain (loss) on available-for-sale securities, net of tax	(22)					(22)
Net tax benefit related to share-based compensation	38		38
Share-based compensation	3,038		3,038
Exercise of stock options	2,207	2,513	(306)
Employee savings plan activity	2,512	2,512
Dividends paid	(17,377)			(17,377)
Balance at End of Period at May. 02, 2015	212,039	48,960	32,693	132,771	(9)	(2,376)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,061			2,061
Cumulative translation adjustments	(529)					(529)
Unrealized gain (loss) on available-for-sale securities, net of tax	7					7
Net tax benefit related to share-based compensation	3		3
Share-based compensation	2,958		2,958
Exercise of stock options	307	610	(303)
Employee savings plan activity	1,777	1,777
Dividends paid	(17,556)			(17,556)
Balance at End of Period at Apr. 30, 2016	$ 201,067	$ 51,347	$ 35,351	$ 117,276	$ (9)	$ (2,898)

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This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

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Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit.

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Aggregate change in value for stock issued during the period as a result of employee stock purchase plan.

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