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Stock-Based Compensation And Employee Purchase Plans (Tables) | 9 Months Ended
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Dec. 31, 2014
Employee Stock Purchase Plan |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions | The estimated fair value of ESPP options granted under the Employee Stock Purchase Plan was estimated at the date of grant using Black-Scholes pricing model with the following weighted average assumptions:
|  |  | Three Months Ended |  |  | Nine Months Ended
|  |  | December 31, |  |  | December 31,
|  |  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013
Expected volatility |  |  | - |  |  | - |  |  | 46% |  |  | 38%
Expected dividend yield |  |  | - |  |  | - |  |  | - |  |  | -
Risk-free interest rate |  |  | - |  |  | - |  |  | 0.90% |  |  | 0.11%
Weighted average expected ESPP option term |  |  | - |  |  | - |  |  | 0.75 years |  |  | 0.75 years
Weighted average fair value of |  |  |  |  |  |  |  |  |  |  |  |
ESPP options granted |  | $ | - |  | $ | - |  | $ | 2.46 |  | $ | 2.60
Stock Options |
Disclosure Of Share-Based Compensation Arrangements By Share-Based Payment Award | Stock option activity and shares available for grant for all equity incentive plans for the nine months ended December 31, 2014 is summarized as follows:
|  |  |  |  | Shares |  |  | Weighted
|  | Shares |  |  | Subject to |  |  | Average
|  | Available |  |  | Options |  |  | Exercise Price
|  | for Grant |  |  | Outstanding |  |  | Per Share
Balance at March 31, 2014 |  | 1,613,943 |  |  | 6,002,382 |  | $ | 4.14
Additional shares authorized for grant |  | 8,000,000 |  |  |  |  |  |
Granted - options (1) |  | (1,295,906) |  |  | 992,764 |  |  | 7.09
Stock purchase rights/restricted stock unit (2) |  | (1,880,732) |  |  | - |  |  | -
Exercised |  | - |  |  | (1,041,982) |  |  | 1.60
Canceled/forfeited - options |  | 392,076 |  |  | (392,076) |  |  | 5.74
Canceled/forfeited - restricted stock unit |  | 142,910 |  |  | - |  |  |
Balance at December 31, 2014 |  | 6,972,291 |  |  | 5,561,088 |  | $ | 5.03
(1) | As reflected in the preceding table, for each share awarded as a stock option under the 2012 Amended and Restated Equity Incentive Plan, an equivalent of 1.5 shares were deducted from the shares available for grant balance.
(2) | The reduction to shares available for grant includes awards granted of 1,880,732 shares.
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions | The following table summarizes the assumptions used to compute reported stock-based compensation to employees and directors for the three and nine months ended December 31, 2014 and 2013:
|  |  | Three Months Ended |  |  | Nine Months Ended
|  |  | December 31, |  |  | December 31,
|  |  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013
Expected volatility |  |  | 61% |  |  | 63% |  |  | 61% |  |  | 64%
Expected dividend yield |  |  | - |  |  | - |  |  | - |  |  | -
Risk-free interest rate |  |  | 1.71% |  |  | 1.62% |  |  | 1.71% |  |  | 1.86%
Weighted average expected option term |  |  | 6.10 years |  |  | 5.59 years |  |  | 6.00 years |  |  | 6.00 years
Weighted average fair value of options granted |  | $ | 4.02 |  | $ | 5.64 |  | $ | 4.01 |  | $ | 5.64
Stock Purchase Rights |
Disclosure Of Share-Based Compensation Arrangements By Share-Based Payment Award | Stock purchase right activity for the nine months ended December 31, 2014 is summarized as follows:
|  |  |  |  | Weighted |  |  | Weighted
|  |  |  |  | Average |  |  | Average
|  |  |  |  | Grant-Date |  |  | Remaining
|  | Number of |  |  | Fair Market |  |  | Contractual
|  | Shares |  |  | Value |  |  | Term (in Years)
Balance at March 31, 2014 |  | 489,627 |  | $ | 4.83 |  |  | 1.93
Granted |  | 31,432 |  |  | 7.88 |  |  |
Vested |  | (202,575) |  |  | 3.96 |  |  |
Forfeited |  | (69,864) |  |  | 5.36 |  |  |
Balance at December 31, 2014 |  | 248,620 |  | $ | 5.77 |  |  | 1.68
Restricted Stock Units |
Disclosure Of Share-Based Compensation Arrangements By Share-Based Payment Award | Restricted stock unit and performance stock unit activity for the nine months ended December 31, 2014 is summarized as follows:
|  |  |  |  |  |  |  | Weighted
|  |  |  |  | Weighted |  |  | Average
|  |  |  |  | Average |  |  | Remaining
|  | Number of |  |  | Purchase |  |  | Contractual
|  | Shares |  |  | Price |  |  | Term (in Years)
Balance at March 31, 2014 |  | 1,134,856 |  | $ | - |  |  | 2.00
Granted |  | 1,849,300 |  |  |  |  |  |
Vested |  | (166,758) |  |  |  |  |  |
Forfeited |  | (141,600) |  |  |  |  |  |
Balance at December 31, 2014 |  | 2,675,798 |  | $ | - |  |  | 2.06

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- Definition Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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