Stockholders equity - Offerings (Details) - USD ($) |
3 Months Ended | ||
|---|---|---|---|
Apr. 08, 2022 |
Aug. 10, 2020 |
Mar. 31, 2023 |
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| Sales Agreement | |||
| Shareholders' equity | |||
| Remaining amount under the Sales Agreement | $ 197,360,000 | ||
| Sales Agreement | Maximum | |||
| Shareholders' equity | |||
| Aggregate offering price of ADS shares under At The Market sales agreement | $ 200,000,000 | ||
| 2022 Sales Agreement | |||
| Shareholders' equity | |||
| Remaining amount under the Sales Agreement | $ 186,513,100 | ||
| Issuance of shares upon completion of public offering, net of issuance costs (in shares) | 554,496 | ||
| Sold shares represented by American Depositary Shares (in shares) | 92,416 | ||
| Net proceeds | $ 173,430 | ||
| 2022 Sales Agreement | Maximum | |||
| Shareholders' equity | |||
| Aggregate offering price of ADS shares under At The Market sales agreement | $ 200,000,000 | ||
| Common stock | |||
| Shareholders' equity | |||
| Issuance of shares upon completion of public offering, net of issuance costs (in shares) | 554,496 |
| X | ||||||||||
- Definition Aggregate offering price of ADS shares that may be issued and sold under the At The Market sales agreement. No definition available.
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- Definition Represents the remaining amount available under the sales agrement. No definition available.
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- Definition Number of American Depositary Shares representing shares sold during the period. No definition available.
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- 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.
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- Definition The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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