Condensed Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Net loss	$ (4,595)	$ (5,039)	$ (13,778)	$ (15,210)
Unrealized gain (loss) on available-for-sale securities	9	(1)	2	(3)
Net loss	$ (4,586)	$ (5,040)	$ (13,776)	$ (15,213)