| Mar'20 | Dec'19 | Sep'19 | Jun'19 | Mar'19 | Dec'18 | Sep'18 | Jun'18 | Mar'18 | Dec'17 | Sep'17 | Jun'17 | Mar'17 | Dec'16 | Sep'16 | Jun'16 | Mar'16 | Dec'15 | Sep'15 | Jun'15 | Mar'15 | Sep'14 | Jun'14 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Operating expenses: | ||||||||||||||||||||||
Research and development | ||||||||||||||||||||||
11,591 | 21,271 | 10,113 | 11,728 | 10,137 | 11,046 | 12,913 | 8,785 | 8,334 | 7,550 | 7,405 | 7,194 | 8,008 | 5,821 | 12,323 | 9,115 | 6,636 | 8,027 | 8,295 | 4,738 | 5,296 | 2,437 | 12,717 |
General and administrative | ||||||||||||||||||||||
4,544 | 3,748 | 3,151 | 3,479 | 3,365 | 3,603 | 3,138 | 4,178 | 3,420 | 3,255 | 2,778 | 3,283 | 3,146 | 3,412 | 2,960 | 3,831 | 3,977 | 3,419 | 2,738 | 1,874 | 1,441 | 1,043 | 791 |
Total operating expenses | ||||||||||||||||||||||
16,135 | 25,019 | 13,264 | 15,207 | 13,502 | 14,649 | 16,051 | 12,963 | 11,754 | 10,805 | 10,183 | 10,477 | 11,154 | 9,233 | 15,283 | 12,946 | 10,613 | 11,446 | 11,033 | 6,612 | 6,737 | 3,480 | 13,508 |
Loss from operations | ||||||||||||||||||||||
-16,135 | -25,019 | -13,264 | -15,207 | -13,502 | -14,649 | -16,051 | -12,963 | -11,754 | -10,805 | -10,183 | -10,477 | -11,154 | -9,233 | -15,283 | -12,946 | -10,613 | -11,446 | -11,033 | -6,612 | -6,737 | -3,480 | -13,508 |
Other income (expense), net: | ||||||||||||||||||||||
Changes in fair value of warrant liabilities | ||||||||||||||||||||||
16,240 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0 | 7,487 | 8,630 | 1,326 | 503 | 347 |
Other income, net | ||||||||||||||||||||||
541 | -1,478 | 288 | 348 | 325 | 447 | 479 | 582 | 272 | 254 | 225 | 185 | 96 | 92 | 88 | 88 | 83 | 18 | 29 | -6 | 25 | 22 | 31 |
Total other income (expense), net | ||||||||||||||||||||||
-15,699 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 18 | -7,458 | -8,636 | -1,301 | -481 | -316 |
Loss before provision for (benefit from) income taxes, net | ||||||||||||||||||||||
-31,834 | -47,423 | -12,976 | -14,859 | -13,177 | -14,202 | -15,572 | -12,381 | -11,482 | -10,551 | -9,958 | -10,292 | -11,058 | -9,141 | -15,195 | -12,858 | -10,530 | -11,428 | -18,491 | -15,248 | -8,038 | -3,961 | -13,824 |
Provision for (benefit from) income taxes, net | ||||||||||||||||||||||
78 | 39 | -73 | 19 | -145 | 81 | -5 | -421 | 43 | 48 | 37 | 37 | 34 | 107 | 14 | 14 | 8 | 30 | 14 | 1 | 10 | - | - |
Net loss and comprehensive loss | ||||||||||||||||||||||
-31,912 | -47,462 | -12,903 | -14,878 | -13,032 | -14,283 | -15,567 | -11,960 | -11,525 | -10,599 | -9,995 | -10,329 | -11,092 | -9,248 | -15,209 | -12,872 | -10,538 | -11,458 | -18,505 | -15,249 | -8,048 | -3,961 | -13,824 |
Adjustment to redemption value on redeemable convertible preferred stock | ||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0 | 222,130 | 140,880 | 11,005 | 5,591 | 36,833 |
Net loss attributable to common stockholders | ||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | -11,458 | -266,544 | -156,129 | -19,053 | -9,552 | -50,657 |
Net loss per common share, basic and diluted | ||||||||||||||||||||||
-3.14 | -22.93 | -0.17 | -0.20 | -7.00 | -29.60 | -0.21 | -0.16 | -0.19 | -33.03 | -0.19 | -0.20 | -0.26 | -0.30 | -0.50 | -0.43 | -0.35 | 96.49 | -11.03 | -104.10 | -12.83 | -9.37 | -55.04 |
Weighted-average shares used in computing net loss per common share, basic and diluted | ||||||||||||||||||||||
10,156 | -139,584 | 74,688 | 74,688 | 1,862 | -201,316 | 74,347 | 74,320 | 59,722 | -142,143 | 52,268 | 52,268 | 42,596 | 30,368 | 30,331 | 30,191 | 30,070 | 30,445 | 24,167 | 1,499 | 1,485 | 1,019 | 920 |