| 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 | ||||||||
37,142 | 39,165 | 95,088 | 41,259 | 51,206 | 58,539 | 64,297 | 10,209 | 21,834 |
Marketable securities | ||||||||
39,487 | 46,208 | - | - | - | - | - | - | - |
Prepaid expenses and other current assets | ||||||||
1,488 | 623 | 1,283 | 1,187 | 698 | 2,990 | 2,025 | 2,027 | 594 |
Total assets | ||||||||
78,117 | 85,996 | 96,371 | 42,446 | 51,904 | 61,529 | 66,322 | 12,236 | 22,428 |
LIABILITIES AND STOCKHOLDERS' EQUITY | ||||||||
Current liabilities: | ||||||||
Accounts payable | ||||||||
3,536 | 1,775 | 2,265 | 3,801 | 779 | 568 | 524 | 887 | 459 |
Accrued expenses | ||||||||
3,367 | 2,065 | 2,695 | 1,237 | 2,195 | 1,303 | 710 | 806 | 819 |
Total current liabilities | ||||||||
6,903 | 3,840 | 4,960 | 5,038 | 2,974 | 1,871 | 1,234 | 1,693 | 1,278 |
Warrant liability | ||||||||
- | - | - | - | - | - | 0 | 1,301 | 998 |
Total liabilities | ||||||||
- | - | - | - | - | - | 1,234 | 2,994 | 2,276 |
Commitments and Contingencies (Note 6) | ||||||||
- | - | - | - | - | - | 0 | 0 | - |
Series A Convertible Redeemable Preferred Stock, $0.0001 Par Value: Series A Convertible Redeemable Preferred Stock, no shares authorized, issued or outstanding at December 31, 2018; 13,000,000 shares authorized, 11,381,999 shares issued and outstanding at December 31, 2017; Liquidation preference of $28,455 at December 31, 2017 | ||||||||
- | - | - | - | - | - | 0 | 26,436 | 26,185 |
Stockholders' equity: | ||||||||
Preferred stock, $0.0001 par value; 25,000,000 shares authorized; no shares issued or outstanding at March 31, 2020 and December 31, 2019 | ||||||||
- | - | - | - | - | - | 0 | - | - |
Common stock, $0.0001 par value; 100,000,000 shares authorized; 47,712,636 issued and outstanding at March 31, 2020; 47,658,361 share issued and oustanding at December 31, 2019 | ||||||||
5 | 5 | 5 | 4 | 4 | 4 | 4 | 1 | 1 |
Additional paid-in capital | ||||||||
162,642 | 161,212 | 159,927 | 96,156 | 95,674 | 95,430 | 95,176 | 7,505 | 3,264 |
Accumulated other comprehensive income | ||||||||
210 | - | - | - | - | - | - | - | - |
Accumulated deficit | ||||||||
-91,643 | -79,061 | -68,521 | -58,752 | -46,748 | -35,776 | -30,092 | -24,700 | -9,298 |
Total stockholders' equity | ||||||||
71,214 | 82,156 | 91,411 | 37,408 | 48,930 | 59,658 | 65,088 | -17,194 | -6,033 |
Total liabilities, preferred stock and stockholders' equity | ||||||||
78,117 | 85,996 | 96,371 | 42,446 | 51,904 | 61,529 | 66,322 | 12,236 | 22,428 |