CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares |
Sep. 30, 2016 |
Dec. 31, 2015 |
|---|---|---|
| CONDENSED CONSOLIDATED BALANCE SHEETS | ||
| Common stock, par value (in dollars per share) | $ 0.0001 | $ 0.0001 |
| Common stock, shares authorized | 500,000,000 | 500,000,000 |
| Common stock, shares issued | 25,221,246 | 24,590,768 |
| Common stock, shares outstanding | 23,639,120 | 23,436,288 |
| Treasury stock, shares | 1,582,126 | 1,154,480 |