Condensed Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	ATM Common stock.	ATM Additional paid-in capital	ATM	Common stock.	Additional paid-in capital	Accumulated deficit	Total
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					1,310		1,310
Exercise of stock options					32		32
Exercise of stock options (shares)				17,012
Net loss						(11,653)	(11,653)
Balance at Mar. 31, 2022				$ 1	128,631	(90,758)	37,874
Balance (shares) at Mar. 31, 2022				12,127,385
Balance at Dec. 31, 2022				$ 1	132,653	(116,001)	16,653
Balance (shares) at Dec. 31, 2022				12,128,843
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense					1,200		1,200
Issuance of common stock		$ 34	$ 34		221		221
Issuance of common stock (shares)	5,925		5,925	55,250
Vesting of restricted stock awards					24		24
Vesting of restricted stock awards (shares)				4,166
Net loss						(4,270)	(4,270)
Balance at Mar. 31, 2023				$ 1	$ 134,132	$ (120,271)	$ 13,862
Balance (shares) at Mar. 31, 2023				12,194,184