Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
|
| Operating expenses: | ||
| Research and development | $ 26,952 | $ 25,209 |
| General and administrative | 12,037 | 14,309 |
| Total operating expenses | 38,989 | 39,518 |
| Loss from operations | (38,989) | (39,518) |
| Other income (expense): | ||
| Change in fair value of warrant | 986 | 14,757 |
| Interest expense, net | (946) | (1,021) |
| Other expense | (1) | (2,029) |
| Total other income | 39 | 11,707 |
| Net loss | (38,950) | (27,811) |
| Comprehensive loss | $ (38,950) | $ (27,811) |
| Net loss per share - basic and diluted (in USD per share) | $ (1.89) | $ (2.69) |
| Weighted-average number of common shares used in computing net loss per share (in shares) | 20,644 | 10,321 |