Balance Sheets (Parenthetical) - $ / shares |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Balance Sheet [Abstract] | ||
| Common shares subject to possible redemption | 30,810,131 | 30,944,905 |
| Preferred stock, par value | $ 0.0001 | $ 0.0001 |
| Preferred stock, shares authorized | 1,000,000 | 1,000,000 |
| Preferred stock, shares issued | ||
| Preferred stock, shares outstanding | ||
| Common stock, par value | $ 0.0001 | $ 0.0001 |
| Common stock, shares authorized | 120,000,000 | 120,000,000 |
| Common stock, shares, issued | 9,814,869 | 9,680,095 |
| Common stock, shares, outstanding | 9,814,869 | 9,680,095 |