Shareholders' equity (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 27, 2017 |
Mar. 31, 2017 |
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| Stockholders' equity | ||
| Proceeds from issuance of common stock | $ 61,397,000 | |
| Common stock | ||
| Stockholders' equity | ||
| Stock issuance costs | $ 4,544,000 | |
| Secondary Public Offering | ||
| Stockholders' equity | ||
| Issuance of shares represented by American Depositary Shares (in ADSs) | 15,700,223 | |
| Share price per ADS (in dollars per share) | $ 4.20 | |
| Secondary Public Offering | Common stock | ||
| Stockholders' equity | ||
| Issuance of stock (in shares) | 94,201,338 | |
| Proceeds from issuance of common stock | $ 61,397,000 | |
| Stock issuance costs | $ 4,544,000 |
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- Definition Number of American Depositary Shares representing shares issued during the period. No definition available.
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- Definition The cash outflow for cost incurred directly with the issuance of an equity security. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The cash inflow from the additional capital contribution to the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Price of a single share of a number of saleable stocks of a company. No definition available.
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- Definition Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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