Condensed Balance Sheets (Unaudited) - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 64,246,000	$ 51,214,000
Short term investments	73,548,000	48,650,000
Prepaid expenses and other current assets	5,180,000	6,192,000
Total current assets	142,974,000	106,056,000
Property and equipment, net	500,000	709,000
Operating lease right-of-use assets, net	848,000	625,000
Long term investments	60,133,000	16,763,000
Other assets	209,000	217,000
Total assets	204,664,000	124,370,000
Current liabilities:
Accounts payable	4,309,000	3,075,000
Accrued expenses and other current liabilities	12,100,000	5,817,000
Total current liabilities	16,409,000	8,892,000
Long-term operating lease liability	244,000
Total liabilities	16,653,000	8,892,000
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.001 par value, 10,000,000 authorized, no shares issued and outstanding as of September 30, 2020 and December 31, 2019
Common stock, $0.001 par value, 100,000,000 shares authorized, 29,494,249 and 26,869,413 issued and outstanding as of September 30, 2020 and December 31, 2019, respectively	29,000	27,000
Additional paid in capital	313,568,000	185,196,000
Accumulated other comprehensive income	513,000	60,000
Accumulated deficit	(126,099,000)	(69,805,000)
Total stockholders’ equity	188,011,000	115,478,000
Total liabilities and stockholders’ equity	$ 204,664,000	$ 124,370,000