Stock-based compensation (Tables)
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6 Months Ended |
Dec. 31, 2019 |
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| Share-based Payment Arrangement [Abstract] |
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| Stock option activity |
A summary of our stock option activity is as follows (in thousands except per share and contractual life amounts): | | | | | | | | | | | | | | | | |
Number of Shares | | Weighted Average Exercise Price | | Weighted Average Remaining Contractual Life (years) | | Aggregate Intrinsic Value | Options outstanding as of June 30, 2019 | | 3,409 |
| | $ | 6.49 |
| | | | | Granted | | 55 |
| | 4.92 |
| | | | | Exercised | | (1,326 | ) | | 6.29 |
| | | | | Canceled or expired | | (175 | ) | | 5.94 |
| | | | | Options outstanding as of December 31, 2019 | | 1,963 |
| | $ | 6.64 |
| | 5.67 | | $ | 5,250 |
| As of December 31, 2019: | | | | | | | | | Options vested and expected to vest | | 1,929 |
| | $ | 6.66 |
| | 5.11 | | $ | 5,213 |
| Options exercisable | | 1,563 |
| | $ | 6.96 |
| | 5.06 | | $ | 4,312 |
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| Restricted stock units award activity |
A summary of our restricted stock unit, or RSU, activity is as follows (in thousands except contractual life amounts): | | | | | | | | | | | | | Number of Shares | | Weighted Average Remaining Contractual Life (years) | | Aggregate Intrinsic Value | RSUs outstanding as of June 30, 2019 | | 2,637 |
| | | | | Granted | | 1,310 |
| | | | | Vested | | (932 | ) | | | | | Canceled | | (458 | ) | | | | | RSUs outstanding as of December 31, 2019 | | 2,557 |
| | 1.78 | | $ | 12,428 |
| As of December 31, 2019: | | | | | | | RSUs expected to vest | | 2,143 |
| | 1.66 | | $ | 10,413 |
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| Summary of shares available for grant activity |
A summary of our shares available for grant activity is as follows (in thousands): | | | | | | | Number of Shares | Shares available for grant as of June 30, 2019 | | 4,472 |
| Annual share increase authorized under 2009 Plan | | 1,667 |
| Granted | | (1,681 | ) | RSUs withheld for taxes in net share settlements | | 251 |
| Canceled | | 633 |
| Expired under 2009 and 2011 Plans | | (5,342 | ) | Shares available under 2009 and 2011 Plans upon termination on November 20, 2019 | | — |
| Initial shares authorized under 2019 Plan on November 20, 2019 | | 5,700 |
| Shares added from 5,800,000 reserved share pool available(1) | | 92 |
| Granted | | (244 | ) | Shares available for grant as of December 31, 2019 | | 5,548 |
| (1) Additional shares are available up to a maximum of 5,800,000 shares only to the extent shares subject to grants under the 2009 Plan were outstanding as of November 20, 2019 but later expire or otherwise terminate without having been exercised in full. |
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| Stock-based compensation expense |
The following table summarizes the stock-based compensation expense for continuing operations recorded for stock options and RSUs, including performance-based RSUs, issued to employees and nonemployees (in thousands): | | | | | | | | | | | | | | | | | | | | Three Months Ended December 31, | | Six Months Ended
December 31, | | | 2019 | | 2018 | | 2019 | | 2018 | Stock option awards | | $ | 226 |
| | $ | 416 |
| | $ | 534 |
| | $ | 833 |
| RSU awards | | 1,252 |
| | 1,459 |
| | 2,696 |
| | 3,090 |
| Total stock-based compensation expense | | $ | 1,478 |
| | $ | 1,875 |
| | $ | 3,230 |
| | $ | 3,923 |
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| Assumptions used to estimate weighted average fair value of options |
The weighted average assumptions used to value stock option awards granted and the resulting weighted average grant date fair value per share were as follows: | | | | | | | | | | | | | | | | | | | | Three Months Ended December 31, | | Six Months Ended
December 31, | | | 2019 | | 2018 | | 2019 | | 2018 | Expected volatility | | 48 | % | | — | % | | 48 | % | | 39 | % | Expected term (in years) | | 5.65 |
| | 0.00 |
| | 5.65 |
| | 6.87 |
| Risk-free interest rate | | 1.58 | % | | — | % | | 1.58 | % | | 2.99 | % | Dividend yield | | — | % | | — | % | | — | % | | — | % | Weighted average grant date fair value per share | | $ | 2.27 |
| | $ | — |
| | $ | 2.27 |
| | $ | 2.32 |
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