| Mar'20 | Dec'19 | Sep'19 | Jun'19 | Mar'19 | Dec'18 | Sep'18 | Jun'18 | Dec'17 |
|---|---|---|---|---|---|---|---|---|
Assets | ||||||||
Current assets: | ||||||||
Cash and cash equivalents | ||||||||
50,917 | 40,326 | 66,579 | 59,716 | 62,833 | 44,973 | 169,654 | 68,408 | 14,192 |
Investment securities | ||||||||
61,885 | 78,066 | 65,094 | 85,258 | 94,379 | 118,902 | - | - | - |
Prepaid expenses and other current assets | ||||||||
4,366 | 4,947 | 3,731 | 2,784 | 1,903 | 2,808 | 1,387 | 1,536 | 973 |
Total current assets | ||||||||
117,168 | 123,339 | 135,404 | 147,758 | 159,115 | 166,683 | 171,041 | 69,944 | 15,165 |
Property and equipment, net | ||||||||
3,771 | 3,946 | 4,035 | 4,264 | 4,465 | 4,232 | 4,353 | 1,808 | 400 |
Operating lease right-of-use asset | ||||||||
2,445 | 2,510 | 2,570 | 2,627 | 2,683 | - | - | - | - |
Restricted cash | ||||||||
500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | - |
Other assets | ||||||||
- | 82 | - | - | - | - | 789 | 2,451 | 33 |
Total assets | ||||||||
123,884 | 130,377 | 142,509 | 155,149 | 166,763 | 171,415 | 176,683 | 74,703 | 15,598 |
Liabilities and Stockholders’ Equity | ||||||||
Current liabilities: | ||||||||
Accounts payable and accrued expenses | ||||||||
8,296 | 5,498 | 2,113 | 2,705 | 2,003 | 5,265 | 1,398 | 2,603 | 403 |
Accrued compensation and related expenses | ||||||||
1,711 | 2,118 | 2,592 | 1,802 | 1,511 | 2,279 | - | - | 315 |
Other current liabilities | ||||||||
753 | 724 | 3,177 | 3,243 | 5,304 | 381 | 4,116 | 3,035 | 179 |
Total current liabilities | ||||||||
10,760 | 8,340 | 7,882 | 7,750 | 8,818 | 7,925 | 5,514 | 5,638 | 897 |
Operating lease liability, non-current | ||||||||
4,648 | 4,849 | 5,044 | 5,226 | 5,401 | - | - | - | - |
Unvested stock liability | ||||||||
39 | 49 | 60 | 72 | 150 | 202 | 209 | 217 | 3 |
Deferred rent | ||||||||
- | - | - | - | - | 3,063 | 3,437 | 1,050 | 20 |
Total liabilities | ||||||||
15,447 | 13,238 | 12,986 | 13,048 | 14,369 | 11,190 | 9,160 | 6,905 | 920 |
Commitments and contingencies (Note 7) | ||||||||
- | - | - | - | - | - | 0 | 0 | - |
Convertible preferred stock, $0.001 par; no shares authorized, issued and outstanding at December 31, 2018; 38,350,914 shares authorized, 28,763,179 shares issued and outstanding, liquidation preference of $30,000 at December 31, 2017 | ||||||||
- | - | - | - | - | - | - | 92,975 | 29,700 |
Stockholders’ equity: | ||||||||
Preferred stock, $0.001 par value; 10,000 shares authorized; no shares issued or outstanding at March 31, 2020 or at December 31, 2019 | ||||||||
- | - | - | - | - | - | 0 | - | - |
Common stock and paid-in capital, $0.001 par value; 200,000 shares authorized; 24,614 and 24,587 shares issued and outstanding at March 31, 2020; 24,296 and 24,263 shares issued and outstanding at December 31, 2019 | ||||||||
219,432 | 210,793 | 208,578 | 206,690 | 204,645 | 203,544 | - | - | - |
Common stock, $0.001 par; 200,000,000 shares authorized, 24,187,568 shares issued and 24,060,510 shares outstanding at December 31, 2018; 50,500,000 shares authorized, 2,076,171 shares issued and 1,549,575 shares outstanding at December 31, 2017 | ||||||||
- | - | - | - | - | - | 24 | 2 | 1 |
Additional paid-in capital | ||||||||
- | - | - | - | - | - | 202,384 | 2,118 | 1,242 |
Accumulated other comprehensive income | ||||||||
167 | 148 | 198 | 234 | 145 | 61 | - | - | - |
Accumulated deficit | ||||||||
-111,162 | -93,802 | -79,253 | -64,823 | -52,396 | -43,380 | -34,885 | -27,297 | -16,265 |
Total stockholders’ equity | ||||||||
108,437 | 117,139 | 129,523 | 142,101 | 152,394 | 160,225 | 167,523 | -25,177 | -15,022 |
Total liabilities and stockholders’ equity | ||||||||
123,884 | 130,377 | 142,509 | 155,149 | 166,763 | 171,415 | 176,683 | 74,703 | 15,598 |