Consolidated Balance Sheets (Parenthetical) - $ / shares |
Mar. 31, 2017 |
Mar. 31, 2016 |
|---|---|---|
| Statement Of Financial Position [Abstract] | ||
| Common stock, par value | $ 0.001 | $ 0.001 |
| Common stock, shares authorized | 150,000,000 | 150,000,000 |
| Common stock, shares issued | 104,551,466 | 92,391,989 |
| Common stock, shares outstanding | 104,551,466 | 92,391,989 |