Condensed Statements of Convertible Preferred Stock, Common Stock and Stockholders' Deficit (Unaudited) - USD ($) $ in Thousands	Total	Convertible Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]
Temporary equity shares beginning at Dec. 31, 2020		9,993,727
Temporary equity amount beginning at Dec. 31, 2020		$ 34,900
Shares beginning at Dec. 31, 2020			3,764,488
Balance beginning at Dec. 31, 2020	$ (16,579)		$ 1	$ 1,458	$ (18,038)
Stock-based compensation expense	361			361
Net loss	(2,363)				(2,363)
Temporary equity shares ending at Mar. 31, 2021		9,993,727
Temporary equity amount ending at Mar. 31, 2021		$ 34,900
Shares ending at Mar. 31, 2021			3,764,488
Balance ending at Mar. 31, 2021	(18,581)		$ 1	1,819	(20,401)
Shares beginning at Dec. 31, 2021			18,781,242
Balance beginning at Dec. 31, 2021	38,183		$ 2	70,872	(32,691)
Conversion of convertible preferred stock to common stock, shares			31,025
Conversion of convertible preferred stock to common stock	33			33
Stock-based compensation expense	764			764
Net loss	(6,145)				(6,145)
Shares ending at Mar. 31, 2022			18,812,267
Balance ending at Mar. 31, 2022	$ 32,835		$ 2	$ 71,669	$ (38,836)