| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Operating expenses: | ||||||||||||||||||||
Research and development | ||||||||||||||||||||
2,152 | 1,222 | 1,068 | 1,234 | 1,800 | 1,833 | 3,542 | 3,960 | 4,977 | 5,080 | 6,489 | 5,837 | 5,280 | 4,839 | 1,936 | 789 | 1,176 | 1,464 | 1,369 | 952 | 206 |
Acquired in‑process research and development | ||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 908 |
General and administrative | ||||||||||||||||||||
2,597 | -315 | 1,250 | 1,115 | 651 | 1,468 | 2,364 | 2,574 | 2,087 | 1,487 | 2,050 | 4,678 | 2,223 | 2,389 | 1,466 | 1,051 | 1,050 | 1,047 | 997 | 658 | 475 |
Total operating expenses | ||||||||||||||||||||
4,749 | 13,058 | 2,318 | 2,349 | 2,451 | 3,301 | 5,906 | 6,534 | 7,064 | 6,567 | 8,539 | 10,515 | 7,503 | 7,228 | 3,402 | 1,840 | 2,226 | 2,511 | 2,366 | 1,610 | 1,589 |
Loss from operations | ||||||||||||||||||||
-4,749 | -13,058 | -2,318 | -2,349 | -2,451 | -3,301 | -5,906 | -6,534 | -7,064 | -6,567 | -8,539 | -10,515 | -7,503 | -7,228 | -3,402 | -1,840 | -2,226 | -2,511 | -2,366 | -1,610 | -1,589 |
Interest (expense) income, net | ||||||||||||||||||||
20 | -23 | 4 | 10 | -13 | -178 | -172 | -144 | -160 | -179 | -132 | 13 | 12 | 13 | -475 | 449 | 127 | 137 | -209 | 0 | -690 |
Loss on note extinguishment | ||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | -198 | - | - | - |
Other income (expense), net | ||||||||||||||||||||
-1 | - | -1,116 | -581 | - | -177 | -1 | - | - | 0 | 0 | 0 | -5 | 1 | -1 | 0 | -4 | 2 | 6 | -1 | - |
Loss before income taxes | ||||||||||||||||||||
-4,730 | -12,498 | -3,430 | -2,920 | -2,464 | -3,656 | -6,079 | -6,678 | -7,224 | -6,746 | -8,671 | -10,502 | -7,496 | -7,214 | -3,878 | -1,391 | -2,103 | -2,570 | -2,569 | -1,611 | -2,279 |
Provision for income taxes | ||||||||||||||||||||
0 | 0 | 0 | 0 | 0 | - | 0 | 0 | 0 | - | - | - | - | - | - | - | - | - | - | - | - |
Net loss | ||||||||||||||||||||
-4,730 | -12,498 | -3,430 | -2,920 | -2,464 | -3,656 | -6,079 | -6,678 | -7,224 | -6,746 | -8,671 | -10,502 | -7,496 | -7,214 | -3,878 | -1,391 | -2,103 | -2,570 | -2,569 | -1,611 | -2,279 |
Other comprehensive loss: | ||||||||||||||||||||
Foreign currency translation loss, net of tax | ||||||||||||||||||||
-34 | - | - | - | -2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Total other comprehensive loss | ||||||||||||||||||||
-34 | 12 | 0 | 0 | -2 | 2 | 0 | 0 | 0 | - | - | - | - | - | - | - | - | - | - | - | - |
Comprehensive loss | ||||||||||||||||||||
-4,764 | -12,486 | -3,430 | -2,920 | -2,466 | -3,656 | -6,079 | -6,678 | -7,224 | -6,746 | -8,671 | -10,502 | -7,496 | -7,214 | -3,878 | -1,391 | -2,103 | -2,570 | -2,569 | -1,611 | -2,279 |
Net loss | ||||||||||||||||||||
-4,730 | -12,498 | -3,430 | -2,920 | -2,464 | -3,656 | -6,079 | -6,678 | -7,224 | -6,746 | -8,671 | -10,502 | -7,496 | -7,214 | -3,878 | -1,391 | -2,103 | -2,570 | -2,569 | -1,611 | -2,279 |
Adjustment to redemption value on Series A convertible preferred stock | ||||||||||||||||||||
- | - | - | - | - | - | - | - | - | 0 | 0 | 0 | 0 | 0 | 67 | 150 | 149 | 150 | 152 | 149 | 2,517 |
Premium upon substantial modification of convertible note with certain shareholders | ||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1,047 | - | - | - |
Net loss attributable to common stockholders | ||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | - | -7,214 | -3,945 | -1,541 | -2,252 | -3,767 | -2,721 | -1,760 | -4,796 |
Loss per share: | ||||||||||||||||||||
Net loss per share, basic and diluted (Note 11) | ||||||||||||||||||||
-0.30 | -3.16 | -0.24 | -0.20 | -0.48 | -0.26 | -0.43 | -0.47 | -0.58 | - | - | - | - | 0.78 | 0.56 | 0.42 | 0.65 | -1.14 | -0.87 | -0.60 | -2.27 |
Weighted average common shares outstanding: | ||||||||||||||||||||
Basic and diluted | ||||||||||||||||||||
15,670 | -12,800 | 14,265 | 14,265 | 5,166 | -23,926 | 14,259 | 14,232 | 12,439 | - | - | - | - | - | - | - | - | - | - | - | - |