Stock options - Plans narrative (Details) - 2017 Plan - shares |
1 Months Ended | 9 Months Ended | |
|---|---|---|---|
Jan. 31, 2020 |
Jun. 30, 2017 |
Sep. 30, 2020 |
|
| Stock options | |||
| Number of shares authorized (in shares) | 2,255,000 | ||
| Cumulative annual increase in number of shares issuable (as a percent) | 4.00% | ||
| Additional shares authorized (in shares) | 1,815,520 | ||
| Number of shares available for future issuance (in shares) | 1,320,916 | ||
| Number of options granted in period (in shares) | 2,165,306 | ||
| X | ||||||||||
- Definition The number of grants made during the period for share options (or share units) and for other than stock (or unit) options, including but not limited to, restricted stock options (or units). This amount does not include options granted as part of an inducement award. No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Number of additional shares authorized for issuance under share-based payment arrangement. No definition available.
|
| X | ||||||||||
- Definition Number of shares authorized for issuance under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock. No definition available.
|
| X | ||||||||||
- Details
|