Condensed Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Operating expenses
Research and development	$ 1,743	$ 2,273	$ 5,430	$ 4,568
General and administrative	3,245	1,400	6,528	2,923
Total operating expenses	4,988	3,673	11,958	7,491
Other income
Interest income	32	1	35	2
Derivative gain	2,886	116	4,217	267
Total other income	2,918	117	4,252	269
Net loss	$ (2,070)	$ (3,556)	$ (7,706)	$ (7,222)
Net loss per common share: Basic	$ (0.01)	$ (0.02)	$ (0.03)	$ (0.04)
Net loss per common share: Diluted	$ (0.02)	$ (0.02)	$ (0.05)	$ (0.04)
Weighted average number of common shares outstanding: Basic	226,085,867	196,179,371	226,084,605	195,785,398
Weighted average number of common shares outstanding: Diluted	226,085,867	201,448,038	226,084,605	200,985,349