| Mar'20 | Dec'19 | Sep'19 | Jun'19 | Mar'19 | Dec'18 | Sep'18 | Jun'18 | Mar'18 | Dec'17 |
|---|---|---|---|---|---|---|---|---|---|
Assets | |||||||||
Current assets: | |||||||||
Cash and cash equivalents | |||||||||
53,187 | 76,043 | 94,720 | 51,836 | 53,994 | 86,366 | 129,137 | 145,824 | 164,773 | 52,080 |
Available-for-sale-securities | |||||||||
400 | 7,481 | 10,943 | 15,550 | - | 36,098 | - | - | - | 17,014 |
Available-for-sale-securities | |||||||||
- | - | - | - | 40,750 | - | 16,232 | 16,935 | 17,609 | - |
Prepaid expenses and other current assets | |||||||||
4,316 | 2,778 | 7,829 | 10,935 | 7,043 | 6,175 | 3,062 | 1,714 | 1,931 | 1,499 |
Restricted cash | |||||||||
- | - | - | - | - | - | 0 | 0 | 65 | 65 |
Total current assets | |||||||||
57,903 | 86,302 | 113,492 | 78,321 | 101,787 | 128,639 | 148,431 | 164,473 | 184,378 | 70,658 |
Property and equipment, net | |||||||||
10,866 | 11,645 | 11,369 | 11,829 | 11,995 | 10,422 | 7,935 | 6,551 | 4,418 | 2,429 |
Operating lease, right-of-use assets | |||||||||
4,655 | 4,988 | 5,529 | 5,618 | 5,916 | - | - | - | - | - |
Other non-current assets | |||||||||
209 | 209 | 209 | 209 | 209 | 209 | 209 | 209 | 209 | - |
Restricted cash | |||||||||
327 | 327 | 327 | 327 | 327 | 327 | 237 | 237 | 237 | - |
Deferred offering costs | |||||||||
- | - | - | - | - | - | - | - | - | 3,106 |
Total assets | |||||||||
73,960 | 103,471 | 130,926 | 96,304 | 120,234 | 139,597 | 156,812 | 171,470 | 189,242 | 76,193 |
Liabilities and Stockholders’ Equity | |||||||||
Current liabilities: | |||||||||
Accounts payable | |||||||||
2,383 | 7,124 | 3,210 | 5,600 | 5,352 | 3,691 | 4,804 | 3,741 | 5,835 | 5,066 |
Accrued expenses | |||||||||
8,507 | 9,178 | 11,466 | 6,007 | 7,409 | 8,235 | 5,833 | 4,938 | 4,092 | 5,972 |
Operating lease liabilities | |||||||||
1,799 | 1,736 | 1,672 | 1,610 | 1,278 | - | - | - | - | - |
Finance lease liabilities | |||||||||
191 | 186 | 181 | 176 | 178 | 173 | - | - | - | - |
Other current liabilities | |||||||||
- | 52 | 221 | 278 | 355 | 382 | - | - | - | 233 |
Total current liabilities | |||||||||
12,880 | 18,276 | 16,750 | 13,671 | 14,572 | 12,481 | 10,637 | 8,679 | 9,927 | 11,271 |
Operating lease liabilities, excluding current portion | |||||||||
3,941 | 4,414 | 4,869 | 5,309 | 5,736 | - | - | - | - | - |
Finance lease liabilities, excluding current portion | |||||||||
683 | 733 | 782 | 829 | 813 | 859 | - | - | - | - |
Other non-current liabilities | |||||||||
- | - | - | - | - | 1,074 | 1,102 | 499 | 365 | - |
Total liabilities | |||||||||
17,504 | 23,423 | 22,401 | 19,809 | 21,121 | 14,414 | 11,739 | 9,178 | 10,292 | 11,271 |
Commitments and contingencies (Note 11) | |||||||||
- | - | - | - | - | - | 0 | 0 | 0 | - |
Preferred Units | |||||||||
- | - | - | - | - | - | - | - | - | 0 |
Stockholders’ Equity: | |||||||||
Series A, B, C and D Common Units, no units authorized at December 31, 2018 and 20,189,509 units authorized at December 31, 2017; no units issued and outstanding at December 31, 2018 and 19,438,552 units issued and outstanding at December 31, 2017 | |||||||||
- | - | - | - | - | - | - | - | - | 65,014 |
Preferred stock, $0.001 par value; 10,000,000 shares authorized at March 31, 2020 and December 31, 2019; no shares issued and outstanding at March 31, 2020 and December 31, 2019 | |||||||||
- | - | - | - | - | - | 0 | 0 | 0 | 0 |
Common stock, $0.001 par value; 300,000,000 shares authorized at March 31, 2020 and December 31, 2019; 46,070,724 shares issued and outstanding at March 31, 2020 and 45,987,571 shares issued and outstanding at December 31, 2019; 2,295,699 pre-funded warrants outstanding at March 31, 2020 and December 31, 2019 | |||||||||
48 | 48 | 48 | 35 | 35 | 35 | 35 | 35 | 35 | - |
Additional paid-in capital | |||||||||
399,382 | 396,278 | 392,897 | 331,620 | 327,709 | 324,209 | 322,179 | 320,382 | 319,073 | - |
Accumulated other comprehensive (loss) gain | |||||||||
-1 | 1 | -2 | 3 | 7 | -5 | -6 | -10 | -23 | -13 |
Accumulated deficit | |||||||||
-342,973 | -316,279 | -284,418 | -255,163 | -228,638 | -199,056 | -177,135 | -158,115 | -140,135 | -124,258 |
Total stockholders'/members’ equity/(deficit) | |||||||||
- | - | - | - | - | - | - | - | - | -59,257 |
Total stockholders’ equity | |||||||||
56,456 | 80,048 | 108,525 | 76,495 | 99,113 | 125,183 | 145,073 | 162,292 | 178,950 | - |
Total liabilities and stockholders’ equity | |||||||||
73,960 | 103,471 | 130,926 | 96,304 | 120,234 | 139,597 | 156,812 | 171,470 | 189,242 | 76,193 |
Series 2 Senior Preferred Units [Member] | |||||||||
Preferred Units | |||||||||
- | - | - | - | - | - | - | - | - | 55,002 |
Series 1 Senior Preferred Units [Member] | |||||||||
Preferred Units | |||||||||
- | - | - | - | - | - | - | - | - | 25,000 |
Junior Preferred Units [Member] | |||||||||
Preferred Units | |||||||||
- | - | - | - | - | - | - | - | - | 44,177 |