Condensed Balance Sheets - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 24,074,000	$ 23,081,000
Other current assets	997,000	268,000
Total current assets	25,071,000	23,349,000
Operating lease right-of-use assets	316,000	90,000
Property and equipment, net	12,000	47,000
Total assets	25,399,000	23,486,000
Current liabilities:
Accounts payable	465,000	453,000
Accrued development expense	558,000	777,000
Accrued compensation and benefits	80,000	58,000
Operating lease liabilities, current	58,000	90,000
Other current liabilities	7,000	9,000
Total current liabilities	1,168,000	1,387,000
Operating lease liabilities, non-current	258,000
Total liabilities	1,426,000	1,387,000
Commitments and contingencies
Stockholders' equity:
Preferred stock, $.001 par value; 10,000,000 shares authorized, none issued and outstanding
Common stock, $.001 par value; 120,000,000 shares authorized; 25,578,673 and 21,841,810 shares issued and outstanding at September 30, 2020 and December 31, 2019, respectively	26,000	22,000
Additional paid-in capital	196,250,000	190,664,000
Accumulated deficit	(172,303,000)	(168,587,000)
Total stockholders' equity	23,973,000	22,099,000
Total liabilities and stockholders' equity	$ 25,399,000	$ 23,486,000