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Shareholders' Equity and Share-Based Compensation (Tables)

12 Months Ended

Apr. 27, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Nonvested Restricted Stock and Restricted Stock Units Activity

A summary of nonvested restricted stock and restricted stock units for the years ended April 27, 2013, April 28, 2012 and April 30, 2011 is as follows:

	Year Ended
	April 27, 2013							April 28, 2012							April 30, 2011
	Number of Nonvested Shares			Weighted Average Grant Date Fair Value Per Share				Number of Nonvested Shares			Weighted Average Grant Date Fair Value Per Share				Number of Nonvested Shares			Weighted Average Grant Date Fair Value Per Share
Outstanding at beginning of year	242			$	9.81			181			$	11.07			121			$	8.21
Granted	119			8.50				118			8.24				103			13.29
Vested	(69	)		12.05				(49	)		10.51				(35	)		8.24
Forfeited	(13	)		9.63				(8	)		10.85				(8	)		9.17
Outstanding at end of year	279			9.74				242			9.81				181			11.07

Schedule of Stock Option Award Activity

A summary of stock option activity under all stock option plans during the fiscal year ended April 27, 2013 is as follows:

	Stock Options			Weighted Average Exercise Price Per Share				Weighted Average Remaining Contractual Life (Years)			Aggregate Intrinsic Value
Outstanding at April 28, 2012	3,290			$	13.73			5.34			$	463
Granted	485			9.51				—			—
Canceled or forfeited	(157	)		12.55				—			—
Exercised	(197	)		6.69				—			562
Outstanding at April 27, 2013	3,421			$	13.59			5.09			$	1,176
Shares vested and expected to vest	3,377			$	13.63			5.05			$	1,166
Exercisable at April 27, 2013	2,301			$	15.42			3.71			$	828

Schedule of Weighted-Average Assumptions

The following table provides the weighted-average fair value of options granted and the related assumptions used in the Black-Scholes model:

	Year Ended
	April 27, 2013				April 28, 2012				April 30, 2011
Fair Value of options granted	$	3.43			$	3.46			$	5.74
Risk-free interest rate	0.71 - 1.13%				1.10 - 1.50%				1.40 - 2.30%
Expected dividend rate	2.43		%		0.71 - 2.15%				0.67 - 0.68%
Expected volatility	45.60 - 46.15%				44.59 - 46.85%				42.00 - 46.00%
Expected life of option	5.9 - 6.8 years				5.9 - 6.8 years				5.9 - 6.7 years

Schedule of Share-Based Compensation Expense by Award Type

The following table presents a summary of the share-based compensation expense by equity type as follows:

	Year Ended
	April 27, 2013				April 28, 2012				April 30, 2011
Stock options	$	1,812			$	2,565			$	2,671
Restricted stock and stock units	765				256				256
Employee stock purchase plans	460				441				443
	$	3,037			$	3,262			$	3,370

Schedule of Share-Based Compensation Expense

A summary of the share-based compensation expenses for stock options, restricted stock, restricted stock units and shares issued under the ESPP for the fiscal years ended April 27, 2013, April 28, 2012 and April 30, 2011 is as follows:

	Year Ended
	April 27, 2013				April 28, 2012				April 30, 2011
Cost of goods sold	$	633			$	610			$	565
Selling	856				982				1,065
General and administrative	980				1,059				1,103
Product design and development	568				611				637
	$	3,037			$	3,262			$	3,370

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Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits.

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Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

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Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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