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Stock-Based Compensation | 12 Months Ended
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Mar. 28, 2020
Stock-Based Compensation |
Stock-Based Compensation | 9. Stock-Based Compensation Equity Incentive Plans On January 27, 2012, the Company approved the 2011 Equity Incentive Plan (the “2011 Plan”). The 2011 Plan authorized the Company to issue options to employees, consultants and directors exercisable for up to a total of 3,750,000 shares of common stock. As of March 28, 2020, all awards granted by the Company under the 2011 Plan have been nonqualified stock options. Options granted under the 2011 Plan have a life of 10 years and vest over service periods of five years or in connection with certain events as defined by the 2011 Plan. On October 19, 2014, the Company approved the 2014 Equity Incentive Plan, which was amended as of August 24, 2016 (as amended, the “2014 Plan”). Following the approval of the 2014 Plan, no further grants have been made under the 2011 Plan. The 2014 Plan authorizes the Company to issue awards to employees, consultants and directors for up to a total of 3,600,000 shares of common stock, par value $0.0001 per share. As of March 28, 2020, all awards granted by the Company under the 2014 Plan to date have been nonqualified stock options, restricted stock awards, restricted stock units or performance share units. Options granted under the 2014 Plan have a life of eight to ten years and vest over service periods of four or five years or in connection with certain events as defined by the 2014 Plan and as determined by the Compensation Committee of our board of directors. Restricted stock awards granted vest over one or four years, as determined by the Compensation Committee of our board of directors. Restricted stock units vest over service periods of one, four or five years, as determined by the Compensation Committee of our board of directors. Performance share units are subject to the vesting criteria discussed further below. Stock Options On May 20, 2019, the Company granted its Chief Executive Officer ("CEO") an option to purchase 227,273 shares of common stock under the 2014 Plan. This option contains both service and market vesting conditions. Vesting of this option is contingent upon the market price of the Company's common stock achieving three stated price targets for 30 consecutive trading days through the fourth anniversary of the date of grant. If the first market price target is met, 33% of the option granted will cliff vest on the fourth anniversary of the date of grant, with an additional 33% of the option vesting if the second market price target is met, and the last 34% of the option vesting if the final market price target is met. The total grant date fair value of this option was $2.0 million, with a grant date fair value of $8.80 per share. The Company is recognizing the expense relating to this stock option on a straight-line basis over the four-year service period. The exercise price of this award is $28.63 per share. The fair value of the option was estimated using a Monte Carlo simulation model. The following significant assumptions were used as of May 20, 2019, the date of grant: ​
​ | ​ | ​ | ​ | ​
Stock price |  | $ | 28.63 |
Exercise price | ​ | $ | 28.63 | ​
Expected option term | ​ |  | 7.0 | years
Expected volatility | ​ |  | 35.3 | %
Risk-free interest rate | ​ | ​ | 2.3 | %
Expected annual dividend yield | ​ | ​ | 0 | %
​ During fiscal 2020, the Company granted certain members of management options to purchase a total of 126,952 shares under the 2014 Plan. The total grant date fair value of stock options granted during fiscal 2020 was $1.4 million, with grant date fair values ranging from $7.22 to $11.19 per share. The Company is recognizing the expense relating to these stock options on a straight-line basis over the four-year service period of the awards. The exercise prices of these awards range between $19.23 and $28.63 per share. During fiscal 2019, the Company granted certain members of management options to purchase a total of 294,691 shares under the 2014 Plan. The total grant date fair value of stock options granted during fiscal 2019 was $2.7 million, with grant date fair values ranging from $8.63 to $11.11 per share. The Company is recognizing the expense relating to these stock options on a straight-line basis over the four-year service period of the awards. The exercise prices of these awards range between $22.85 and $29.73 per share. During fiscal 2018, the Company granted certain members of management options to purchase a total of 448,792 shares under the 2014 Plan. The total grant date fair value of stock options granted during fiscal 2018 was $1.2 million, with grant date fair values ranging from $2.11 to $6.97 per share. The Company is recognizing the expense relating to these stock options on a straight-line basis over the five-year service period of the awards. The exercise prices of these awards range between $6.15 and $18.66 per share. Stock option awards are measured at fair value on the grant date using the Black-Scholes option valuation model. Key input assumptions used to estimate the fair value of stock options include the exercise price of the award, the expected option term, expected volatility of the Company’s stock price over the option’s expected term, the risk-free interest rate over the option’s expected term and the Company’s expected annual dividend yield, if any. The Company issues shares of common stock when options are exercised. The fair values of stock options granted in fiscal 2020, 2019, and 2018 were estimated on the grant dates using the following assumptions:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Fiscal Year Ended | ​
​ | March 28, | ​ | March 30, | ​ | March 31, | ​
​ | 2020 |  | 2019 |  | 2018 |
Expected option term(1) | 6.3 | ​ | - | 7.0 | years | ​ | ​ | ​ | 5.3 | years | ​ | ​ | ​ | 5.5 | years
Expected volatility factor(2) | 35.3 | % | - | 38.1 | % | 36.1 | % | - | 37.7 | % | 34.0 | % | - | 35.5 | %
Risk-free interest rate(3) | 0.5 | % | - | 2.3 | % | 2.2 | % | - | 2.8 | % | 1.8 | % | - | 2.7 | %
Expected annual dividend yield | ​ | ​ | ​ | 0 | % | ​ | ​ | ​ | 0 | % | ​ | ​ | ​ | 0 | %
​
(1) | The Company has limited historical information regarding the expected option term. Accordingly, the Company determined the expected life of the options using the simplified method.
(2) | Stock volatility for each grant is measured using the weighted average of historical daily price changes of the Company’s competitors’ common stock over the most recent period equal to the expected option term of the Company’s awards.
(3) | The risk-free interest rate is determined using the rate on treasury securities with the same term.
Intrinsic value for stock options is defined as the difference between the market price of the Company’s common stock on the last business day of the fiscal year and the weighted average exercise price of in-the-money stock options outstanding at the end of each fiscal period. The following table summarizes the stock award activity for the fiscal year ended March 28, 2020: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ | ​ |  | Weighted |  | ​ | ​ |
​ | ​ | ​ | ​ | Grant Date | ​ | Average | ​ | ​ | ​ |
​ | ​ | ​ | ​ | Weighted | ​ | Remaining | ​ | Aggregate |
​ | ​ | Stock | ​ | Average | ​ | Contractual | ​ | Intrinsic |
​ |  | Options |  | Exercise Price |  | Life (in Years) |  | Value |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | (in thousands) | ​
Outstanding at March 30, 2019 |  | 1,293,347 | ​ | $ | 15.40 | ​ | ​ | ​ | ​ | ​ | ​
Granted |  | 354,225 | ​ | $ | 28.36 | ​ | ​ | ​ | ​ | ​ | ​
Exercised | ​ | (404,583) | ​ | $ | 12.86 | ​ | ​ | ​ | $ | 9,922 | ​
Cancelled, forfeited or expired |  | (21,766) | ​ | $ | 17.76 | ​ | ​ | ​ | ​ | ​ | ​
Outstanding at March 28, 2020 |  | 1,221,223 | ​ | $ | 19.96 |  | 6.1 | ​ | $ | 2,465 | ​
Vested and expected to vest after March 28, 2020 |  | 1,221,223 | ​ | $ | 19.96 |  | 6.1 | ​ | $ | 2,465 | ​
Exercisable at March 28, 2020 |  | 289,966 | ​ | $ | 20.60 |  | 3.9 | ​ | $ | 309 | ​
​ A summary of the status of non-vested stock options as of March 28, 2020 and changes during fiscal 2020 is presented below:
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted- |
​ | ​ | ​ | ​ | Average |
​ | ​ | ​ | ​ | Grant Date |
​ |  | Shares |  | Fair Value |
Nonvested at March 30, 2019 |  | 917,850 | ​ | $ | 5.48 | ​
Granted |  | 354,225 | ​ | $ | 9.52 | ​
Vested |  | (322,711) | ​ | $ | 5.82 | ​
Nonvested shares forfeited |  | (18,107) | ​ | $ | 5.47 | ​
Nonvested at March 28, 2020 |  | 931,257 | ​ | $ | 6.90 | ​
​ Restricted Stock Units During fiscal 2020, the Company granted 95,985 restricted stock units to various directors and employees under the 2014 Plan. The units granted to employees vest in four equal annual installments beginning on the first anniversary of the grant date, provided that the respective award recipient continues to be employed by the Company through each of those dates, subject to accelerated vesting in the event of termination of employment under certain circumstances. The units granted to the Company’s directors vest on the first anniversary of the date of grant, provided that the respective award recipient continues service with the Company through the vesting date. The grant date fair value of these awards for fiscal 2020 totaled $2.7 million. The Company is recognizing the expense relating to these awards on a straight-line basis over the service period of each award, commencing on the date of grant. During fiscal 2019, the Company granted 86,996 restricted stock units to various directors and employees under the 2014 Plan. The units granted to employees vest in four equal annual installments beginning on the grant date, provided that the respective award recipient continues to be employed by the Company through each of those dates. The units granted to the Company’s directors vest on the first anniversary of the date of grant, provided that the respective award recipient continues service with the Company through the vesting date. The grant date fair value of these awards for fiscal 2019 totaled $2.2 million. The Company is recognizing the expense relating to these awards on a straight-line basis over the service period of each award, commencing on the date of grant. During fiscal 2018, the Company granted 126,800 restricted stock units to various directors and employees under the 2014 Plan. The units granted to employees vest in five equal annual installments beginning on the grant date, provided that the respective award recipient continues to be employed by the Company through each of those dates. The units granted to the Company’s directors vest on the first anniversary of the date of grant, provided that the respective award recipient continues service with the Company through the vesting date. The grant date fair value of these awards for fiscal 2018 totaled $1.1 million. The Company is recognizing the expense relating to these awards on a straight-line basis over the service period of each award, commencing on the date of grant. Performance Share Units During fiscal 2020, the Company granted 38,546 performance share units to various employees under the 2014 Plan with a grant date fair value of $28.63 per share. The performance share units granted are stock-based awards in which the number of shares ultimately received depends on the Company's performance against its cumulative earnings per share target over a three-year performance period beginning March 31, 2019 and ending March 26, 2022. These performance metrics were established by the Company at the beginning of the performance period. At the end of the performance period, the number of performance shares to be issued is fixed based upon the degree of achievement of the performance goals. If the cumulative three-year performance goals are below the threshold level, the number of performance units to vest will be 0%, if the performance goals are at the threshold level, the number of performance units to vest will be 50% of the target amounts, if the performance goals are at the target level, the number of performance units to vest will be 100% of the target amounts, and if the performance goals are at the maximum level, the number of performance units to vest will be 200% of the target amounts, each subject to continued service by the applicable award recipient through the last day of the performance period (subject to certain exceptions). If performance is between threshold and target goals or between target and maximum goals, the number of performance units to vest will be determined by linear interpolation. The number of shares ultimately issued can range from 0% to 200% of the participant's target award. The grant date fair value of the performance share units granted during fiscal 2020 was initially measured using the Company's closing stock price on the date of grant with the resulting stock compensation expense recognized on a straight-line basis over the three-year vesting period. The expense recognized over the vesting period is adjusted up or down on a quarterly basis based on the anticipated performance level during the performance period. If the performance metrics are not probable of achievement during the performance period, stock compensation expense would be reversed. The awards are forfeited if the threshold performance goals are not achieved as of the end of the performance period. During fiscal 2019 and fiscal 2018, the Company did not grant any performance share units. Stock-Based Compensation Expense Stock-based compensation expense was $4.9 million, $2.9 million, and $2.2 million for fiscal 2020, 2019, and 2018, respectively. Stock-based compensation expense of $0.9 million, $0.4 million, and $0.4 million was recorded in cost of goods sold in the consolidated statements of operations for fiscal 2020, 2019, and 2018, respectively. All other stock-based compensation expense is included in selling, general and administrative expenses in the consolidated statements of operations. As of March 28, 2020, there was $4.6 million of total unrecognized stock-based compensation expense related to unvested stock options, with a weighted-average remaining recognition period of 2.65 years. As of March 28, 2020, there was $3.0 million of total unrecognized stock-based compensation expense related to restricted stock units, with a weighted-average remaining recognition period of 2.56 years. As of March 28, 2020, there was $0.6 million of total unrecognized stock-based compensation expense related to performance share units, with a weighted-average remaining recognition period of 1.97 years.

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