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Equity Compensation (Tables) | 12 Months Ended
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Mar. 30, 2013
Equity Compensation [Abstract] |
Summary Of Effect Of Stock-Based Compensation On Cost Of Goods Sold |
| Fiscal Years Ended
|  | March 30, 2013 |  |  | March 31, 2012 |  |  | March 26, 2011
Cost of sales | $ | 751 |  | $ | 398 |  | $ | 243
Research and development |  | 10,549 |  |  | 5,590 |  |  | 2,641
Sales, general and administrative |  | 10,195 |  |  | 6,190 |  |  | 5,257
Effect on pre-tax income |  | 21,495 |  |  | 12,178 |  |  | 8,141
Income Tax Benefit |  | (106) |  |  | - |  |  | -
Total share-based compensation expense (net of taxes) |  | 21,389 |  |  | 12,178 |  |  | 8,141
Share-based compensation effects on basic earnings per share | $ | 0.33 |  | $ | 0.19 |  | $ | 0.12
Share-based compensation effects on diluted earnings per share |  | 0.32 |  |  | 0.18 |  |  | 0.11
Share-based compensation effects on operating activities cash flow |  | 21,389 |  |  | 12,178 |  |  | 8,141
Share-based compensation effects on financing activities cash flow |  | 106 |  |  | - |  |  | -
Summary Of Activity In Total Stock Available for Grant |
|  | Shares
|  | Available for
|  | Grant
Balance, March 27, 2010 |  | 9,930
Plans terminated |  | (300)
Granted |  | (1,927)
Forfeited |  | 472
Balance, March 26, 2011 |  | 8,175
Plans terminated |  | (34)
Granted |  | (2,049)
Forfeited |  | 165
Balance, March 31, 2012 |  | 6,257
Plans terminated |  | -
Granted |  | (1,600)
Forfeited |  | 468
Balance, March 30, 2013 |  | 5,125
Schedule Of Fair Value Of Stock Option Grants |
| Year Ended
|  | March 30, 2013 | (a) |  | March 31, 2012 |  |  | March 26, 2011 |
Expected stock price volatility |  | 63.42 | % |  | 59.25 - 66.11 | % |  | 52.03 - 67.11 | %
Risk-free interest rate |  | 0.31 | % |  | 0.27 - 1.43 | % |  | 1.19 - 2.06 | %
Expected term (in years) |  | 2.46 |  |  | 2.32 - 3.82 |  |  | 3.83 - 4.34 |
(a) | Actual assumptions at time of share issuance used.
Schedule Of Stock Option Activity |
|  | Outstanding Options
|  |  |  |  | Weighted
|  |  |  |  | Average
|  | Number |  |  | Exercise Price
Balance, March 27, 2010 |  | 10,379 |  | $ | 6.74
Options granted |  | 977 |  |  | 16.75
Options exercised |  | (4,718) |  |  | 6.57
Options forfeited |  | (153) |  |  | 5.90
Options expired |  | (304) |  |  | 23.68
Balance, March 26, 2011 |  | 6,181 |  | $ | 7.63
Options granted |  | 450 |  |  | 15.63
Options exercised |  | (593) |  |  | 6.88
Options forfeited |  | (67) |  |  | 7.70
Options expired |  | (67) |  |  | 15.68
Balance, March 31, 2012 |  | 5,904 |  | $ | 8.23
Options granted |  | 264 |  |  | 37.22
Options exercised |  | (1,746) |  |  | 6.88
Options forfeited |  | (144) |  |  | 12.52
Options expired |  | - |  |  | 20.25
Balance, March 30, 2013 |  | 4,278 |  | $ | 10.42
Summary Of Outstanding Options Vesting, Expected To Vest, Or Exercisable |
|  |  |  |  | Weighted |  | Weighted Average |  |  |
|  | Number of |  |  | Average |  | Remaining Contractual |  |  | Aggregate
|  | Options |  |  | Exercise price |  | Term (years) |  |  | Intrinsic Value
Vested and expected to vest |  | 4,196 |  | $ | 10.15 |  | 6.07 |  | $ | 56,376
Exercisable |  | 3,217 |  | $ | 7.76 |  | 5.51 |  | $ | 48,228
Summary Of Outstanding And Exercisable Options |
|  | Options Outstanding |  | Options Exercisable
|  |  |  | Weighted Average |  |  |  |  |  |  |  |
|  |  |  | Remaining |  | Weighted |  |  |  | Weighted
|  |  |  | Contractual Life |  | Average Exercise |  | Number |  | Average
Range of Exercise Prices |  | Number |  | (years) |  | Price |  | Exercisable |  | Exercise Price
$2.59 - $5.25 |  | 764 |  | 4.78 |  | $ | 5.05 |  | 754 |  | $ | 5.05
$5.49 - $5.53 |  | 58 |  | 6.39 |  |  | 5.50 |  | 44 |  |  | 5.50
$5.55 - $5.55 |  | 1,217 |  | 6.48 |  |  | 5.55 |  | 961 |  |  | 5.55
$5.66 - $7.87 |  | 891 |  | 4.10 |  |  | 7.05 |  | 873 |  |  | 7.05
$8.06 - $16.25 |  | 874 |  | 7.72 |  |  | 15.18 |  | 434 |  |  | 14.90
$16.28 - $38.99 |  | 474 |  | 8.11 |  |  | 29.79 |  | 151 |  |  | 19.60
|  | 4,278 |  | 6.11 |  | $ | 10.42 |  | 3,217 |  | $ | 7.76
Summary Of Restricted Stock Award Activity |
|  |  |  | Weighted |
|  |  |  | Average |
|  |  |  | Grant Date | Aggregate
| Number of |  |  | Fair Value | Intrinsic
| Shares |  |  | (per share) | value (1)
March 27, 2010 | 49 |  | $ | 6.20 |
Granted | 5 |  |  | 17.28 |
Vested | (7) |  |  | 7.35 | 134
Forfeited | (2) |  |  | 7.35 |
March 26, 2011 | 45 |  |  | 7.21 |
Granted | 49 |  |  | 15.31 |
Vested | (54) |  |  | 14.57 | 826
Forfeited | - |  |  | - |
March 31, 2012 | 40 |  |  | 7.19 |
Granted | 27 |  |  | 28.24 |
Vested | (62) |  |  | 15.45 | 1,657
Forfeited | - |  |  | - |
March 30, 2013 | 5 |  | $ | 17.28 |
(1) | Represents the value of Cirrus stock on the date that the restricted stock vested.
Summary Of Restricted Stock Unit Activity |
|  |  |  |  | Weighted Average
|  |  |  | Weighted | Remaining
|  |  |  | Average | Contractual Term
| Shares |  |  | Fair Value | (years)
March 27, 2010 | - |  | $ | - |
Granted | 628 |  |  | 16.41 |
Vested | - |  |  | - |
Forfeited | (8) |  |  | 16.25 |
March 26, 2011 | 620 |  |  | 16.41 | 2.54
Granted | 1,017 |  |  | 16.59 |
Vested | - |  |  | - |
Forfeited | (21) |  |  | 16.04 |
March 31, 2012 | 1,616 |  |  | 16.52 | 1.94
Granted | 864 |  |  | 37.26 |
Vested | (193) |  |  | 20.56 |
Forfeited | (216) |  |  | 21.46 |
March 30, 2013 | 2,071 |  | $ | 23.66 | 1.57
Summary Of Restricted Stock Units Vesting Or Expected To Vest |
|  |  |  |  | Weighted |  | Weighted Average
|  |  |  |  | Average |  | Remaining Contractual
|  | Shares |  |  | Fair Value |  | Term (years)
Vested and expected to vest |  | 1,888 |  | $ | 23.66 |  | 1.53

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