Stockholders' Equity - Schedule of Restricted Stock Unit Activity (Details) - Restricted Stock Units (RSUs) - $ / shares |
3 Months Ended | 9 Months Ended | |
|---|---|---|---|
Feb. 04, 2020 |
Jan. 31, 2021 |
Jan. 31, 2021 |
|
| Number of Shares | Ìý | Ìý | Ìý |
| Unvested Balance Outstanding at April 30, 2020 (in shares) | Ìý | Ìý | 643,175 |
| Granted (in shares) | 375,000 | Ìý | 251,521 |
| Exercised (in shares) | Ìý | Ìý | 0 |
| Forfeited (in shares) | Ìý | Ìý | (19,250) |
| Vested (in shares) | Ìý | (131,250) | (206,109) |
| Expired (in shares) | Ìý | Ìý | 0 |
| Unvested Balance Outstanding, January 31, 2020 (in shares) | Ìý | 669,337 | 669,337 |
| Weighted Average Grant Price | Ìý | Ìý | Ìý |
| Unvested Balance Outstanding at April 30, 2020 (in dollars per share) | Ìý | Ìý | $ 5.64 |
| Granted (in dollars per share) | Ìý | Ìý | 9.82 |
| Exercised (in dollars per share) | Ìý | Ìý | 0 |
| Forfeits (in dollars per share) | Ìý | Ìý | 8.94 |
| Vested (in dollars per share) | Ìý | Ìý | 12.46 |
| Expired (in dollars per share) | Ìý | Ìý | 0 |
| Unvested Balance Outstanding at January 31, 2020 (in dollars per share) | Ìý | $ 6.95 | $ 6.95 |
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Exercises in Period No definition available.
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Exercises in Period, Weighted Average Grant Date Fair Value No definition available.
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expirations in Period No definition available.
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Expirations in Period, Weighted Average Grant Date Fair Value No definition available.
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X |
- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef |