CONSOLIDATED STATEMENTS OF CONVERTIBLE REDEEMABLE PREFERRED STOCK AND SHAREHOLDERS’ EQUITY (DEFICIT) (Parenthetical) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Sale of stock | ||
| Issuance costs | $ 845 | $ 2,408 |
| Series D convertible redeemable preferred stock | ||
| Sale of stock | ||
| Issuance costs | 193 | |
| Issuance costs | $ 193 | |