| 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 | ||||||||
74,933 | 65,071 | 85,507 | 33,111 | 31,241 | 58,345 | 159,674 | 173,429 | 51,402 |
Marketable securities | ||||||||
55,473 | 80,658 | 75,063 | 139,162 | 96,066 | 84,225 | - | - | - |
Restricted cash | ||||||||
- | - | - | - | - | - | 165 | 165 | 165 |
Prepaid expenses and other current assets | ||||||||
2,726 | 4,114 | 4,660 | 10,740 | 7,770 | 2,751 | 3,025 | 2,332 | 936 |
Total current assets | ||||||||
133,132 | 149,843 | 165,230 | 183,013 | 135,077 | 145,321 | 162,864 | 175,926 | 52,503 |
Restricted cash | ||||||||
1,780 | 1,780 | 1,780 | 1,780 | 1,780 | 1,780 | 1,780 | 1,780 | - |
Property and equipment, net | ||||||||
9,529 | 9,891 | 10,223 | 10,648 | 10,640 | 10,212 | 8,149 | 2,912 | 1,956 |
Deferred offering costs | ||||||||
- | - | - | - | 195 | - | - | - | - |
Other assets | ||||||||
- | - | - | - | - | - | - | - | 4 |
Total assets | ||||||||
144,441 | 161,514 | 177,233 | 195,441 | 147,692 | 157,313 | 172,793 | 180,618 | 54,463 |
Liabilities and Stockholders' Equity | ||||||||
Current liabilities: | ||||||||
Accounts payable | ||||||||
3,947 | 2,812 | 2,038 | 2,349 | 3,010 | 3,492 | 4,897 | 1,497 | 167 |
Accrued expenses and other current liabilities | ||||||||
8,756 | 11,303 | 7,591 | 7,591 | 4,910 | 6,927 | 7,032 | 6,108 | 3,975 |
Total current liabilities | ||||||||
12,703 | 14,115 | 9,629 | 9,940 | 7,920 | 10,419 | 11,929 | 7,605 | 4,142 |
Deferred rent | ||||||||
6,337 | 6,206 | 6,075 | 5,945 | 5,769 | 1,246 | - | - | - |
Long-term liabilities | ||||||||
- | - | - | - | - | - | 1,080 | 796 | - |
Total liabilities | ||||||||
19,040 | 20,321 | 15,704 | 15,885 | 13,689 | 11,665 | 13,009 | 8,401 | 4,142 |
Commitments and contingencies (Note 6) | ||||||||
- | - | - | - | - | - | 0 | 0 | - |
Redeemable convertible preferred stock (Series A and B), $0.001 par value; no shares and 49,178,527 shares authorized, issued and outstanding as of December 31, 2018 and 2017, respectively | ||||||||
- | - | - | - | - | - | - | - | 92,439 |
Stockholders' Equity: | ||||||||
Preferred stock, $0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding | ||||||||
- | - | - | - | - | - | 0 | 0 | - |
Common stock, $0.001 par value; 150,000,000 shares authorized; 39,588,739 shares and 39,466,254 shares issued and 39,454,635 shares and 39,260,532 shares outstanding as of March 31, 2020 and December 31, 2019, respectively | ||||||||
39 | 39 | 39 | 39 | 34 | 33 | 33 | 33 | 2 |
Additional paid-in capital | ||||||||
324,505 | 320,641 | 317,665 | 314,646 | 251,488 | 248,349 | 245,798 | 242,216 | 3,091 |
Accumulated other comprehensive income | ||||||||
363 | 8 | 83 | 139 | 41 | -8 | - | - | - |
Accumulated deficit | ||||||||
-199,506 | -179,495 | -156,258 | -135,268 | -117,560 | -102,726 | -86,047 | -70,032 | -45,211 |
Total stockholders' equity | ||||||||
125,401 | 141,193 | 161,529 | 179,556 | 134,003 | 145,648 | 159,784 | 172,217 | -42,118 |
Total liabilities and stockholders' equity | ||||||||
144,441 | 161,514 | 177,233 | 195,441 | 147,692 | 157,313 | 172,793 | 180,618 | 54,463 |