Condensed Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common stock.	Additional paid-in capital	Accumulated deficit	Total
Balance at Dec. 31, 2020	$ 1	$ 95,738	$ (54,394)	$ 41,345
Balance (shares) at Dec. 31, 2020	10,634,245
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Sale of common stock and common stock warrants		26,666		26,666
Sale of common stock and common stock warrants, shares	1,014,115
Share-based compensation expense		3,448		3,448
Exercise of common stock warrants		1,338		1,338
Exercise of common stock warrants (shares)	200,979
Exercise of stock options and vesting of restricted stock		99		99
Exercise of stock options and vesting of restricted stock (shares)	261,034
Net loss			(24,711)	(24,711)
Balance at Dec. 31, 2021	$ 1	127,289	(79,105)	48,185
Balance (shares) at Dec. 31, 2021	12,110,373
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense		5,332		5,332
Exercise of stock options		32		$ 32
Exercise of stock options (shares)	18,470			18,470
Net loss			(36,896)	$ (36,896)
Balance at Dec. 31, 2022	$ 1	$ 132,653	$ (116,001)	$ 16,653
Balance (shares) at Dec. 31, 2022	12,128,843