Audited Consolidated Balance Sheet as of December 31, 2016 and Unaudited Interim Consolidated Balance Sheet as of June 30, 2017 (Parentheticals) - $ / shares |
Jun. 30, 2017 |
Dec. 31, 2016 |
|---|---|---|
| Ordinary shares, par value (in dollars per share) | $ 0.0001 | $ 0.0001 |
| Ordinary shares, authorized (in shares) | 500,000,000 | 500,000,000 |
| Ordinary shares, issued (in shares) | 22,844,962 | 16,879,628 |
| Ordinary shares, outstanding (in shares) | 22,844,962 | 16,879,628 |