Condensed Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Operating expenses:
Research and development, net of grant reimbursement	$ 399	$ (52)	$ 1,534	$ 830
General and administrative	1,038	831	2,634	2,553
Gain on sale of property and equipment			(346)
Total operating expenses	1,437	779	3,822	3,383
Operating loss	(1,437)	(779)	(3,822)	(3,383)
Interest income	7	82	106	268
Net loss	$ (1,430)	$ (697)	$ (3,716)	$ (3,115)
Net loss per share, basic and diluted	$ (0.06)	$ (0.04)	$ (0.15)	$ (0.18)
Shares used in computing net loss per share, basic and diluted	24,972	17,162	24,745	17,162