| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Operating expenses: | ||||||||||||
Research and development | ||||||||||||
17,419 | 16,374 | 15,610 | 15,464 | 15,680 | 11,343 | 11,227 | 10,172 | 7,143 | 6,076 | 5,345 | 4,690 | 3,846 |
General and administrative | ||||||||||||
5,842 | 6,296 | 5,886 | 5,923 | 5,124 | 4,650 | 5,230 | 5,056 | 3,282 | 1,991 | 2,693 | 1,528 | 1,362 |
Total operating expenses | ||||||||||||
23,261 | 22,670 | 21,496 | 21,387 | 20,804 | 15,993 | 16,457 | 15,228 | 10,425 | 8,067 | 8,038 | 6,218 | 5,208 |
Loss from operations | ||||||||||||
-23,261 | -22,670 | -21,496 | -21,387 | -20,804 | -15,993 | -16,457 | -15,228 | -10,425 | -8,067 | -8,038 | -6,218 | -5,208 |
Other (expense) income: | ||||||||||||
Interest (expense) income, net | ||||||||||||
-181 | 17 | 81 | 446 | 505 | 550 | 600 | 367 | 46 | 1 | -69 | -75 | -72 |
Other income | ||||||||||||
466 | - | - | - | 0 | - | - | - | - | - | - | - | - |
Other expenses | ||||||||||||
- | - | 218 | 0 | - | - | 0 | 285 | 121 | - | 66 | 68 | 90 |
Other income, net | ||||||||||||
285 | 261 | -137 | 446 | 505 | 550 | 600 | 82 | -75 | -76 | -135 | -143 | -162 |
Loss before income taxes | ||||||||||||
-22,976 | - | - | - | -20,299 | - | - | - | - | - | - | - | - |
Income tax expense | ||||||||||||
100 | - | - | - | 0 | - | - | - | - | - | - | - | - |
Net loss | ||||||||||||
-23,041 | -22,599 | -21,633 | -20,941 | -20,299 | -15,443 | -15,857 | -15,146 | -10,500 | -8,143 | -8,173 | -6,361 | -5,370 |
Convertible preferred stock dividends | ||||||||||||
- | - | 0 | 0 | - | 0 | 0 | 1,520 | 2,417 | 1,730 | 1,708 | 1,422 | 1,225 |
Net loss attributable to common stockholders | ||||||||||||
- | - | -21,633 | -20,941 | - | -15,443 | -15,857 | -16,666 | -12,917 | -9,873 | -9,881 | -7,783 | -6,595 |
Net loss per share attributable to common stockholders, basic and diluted (in dollars per share) | ||||||||||||
-0.71 | -0.71 | -0.67 | -0.65 | -0.64 | -0.49 | -0.50 | -0.85 | -3.29 | -2.57 | -2.61 | -2.09 | -1.81 |
Weighted-average number of common shares outstanding, basic and diluted (in shares) | ||||||||||||
32,250 | 32,100 | 32,060 | 32,041 | 31,925 | 32,193 | 31,741 | 19,626 | 3,922 | 3,840 | 3,779 | 3,730 | 3,651 |
Comprehensive loss: | ||||||||||||
Reconciliation of net loss to net loss attributable to common stockholders: | ||||||||||||
Net loss | ||||||||||||
-23,041 | -22,599 | -21,633 | -20,941 | -20,299 | -15,443 | -15,857 | -15,146 | -10,500 | -8,143 | -8,173 | - | - |
Net Income (Loss) Attributable to Parent | ||||||||||||
-23,041 | - | - | - | -20,299 | - | - | - | - | - | - | - | - |
Other comprehensive loss: | ||||||||||||
Unrealized gain (loss) on investments, net of tax of $0 | ||||||||||||
0 | 0 | -1 | 3 | 16 | 20 | -38 | 0 | 0 | - | 0 | - | - |
Comprehensive loss | ||||||||||||
-23,000 | -22,582 | -21,634 | -20,938 | -20,300 | -15,418 | -15,900 | -15,146 | -10,500 | - | -8,173 | - | - |