Statements of Convertible Preferred Stock, Common Stock and Stockholders' Deficit - USD ($) $ in Thousands	Total	License Agreement [Member]	Legal Settlement [Member]	Convertible Preferred Stock [Member]	Common Class A [Member]	Common Stock [Member]	Common Stock [Member] License Agreement [Member]	Common Stock [Member] Legal Settlement [Member]	Common Stock [Member] Common Class A [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] License Agreement [Member]	Additional Paid-in Capital [Member] Legal Settlement [Member]	Additional Paid-in Capital [Member] Common Class A [Member]	Accumulated Deficit [Member]	IPO [Member]	IPO [Member] Convertible Preferred Stock [Member]	IPO [Member] Common Stock [Member]	IPO [Member] Additional Paid-in Capital [Member]
Temporary equity shares beginning at Dec. 31, 2019				2,713,980
Temporary equity amount beginning at Dec. 31, 2019				$ 8,896
Shares beginning at Dec. 31, 2019						3,235,671
Balance beginning at Dec. 31, 2019	$ (9,242)					$ 1				$ 238				$ (9,481)
Stock issued during period shares new issues, amount		$ 103	$ 248	$ 25,175	$ 499						$ 103	$ 248	$ 499
Stock issued during period shares new issues, shares				7,048,351			89,629	200,750	227,010
Exercise of common stock option					$ 13								$ 13
Exercise of common stock option, shares									11,428
Conversion of convertible preferred stock to common stock upon closing of IPO	0
Exercise of Warrants				$ 829
Exercise of Warrants, shares				231,396
Stock-based compensation expense	357									357
Net loss	(8,557)													(8,557)
Temporary equity shares ending at Dec. 31, 2020				9,993,727
Temporary equity amount ending at Dec. 31, 2020	34,900			$ 34,900
Shares ending at Dec. 31, 2020						3,764,488
Balance ending at Dec. 31, 2020	(16,579)					$ 1				1,458				(18,038)
Stock issued during period shares new issues, amount															$ 32,290			$ 32,290
Stock issued during period shares new issues, shares																	4,000,000
Exercise of common stock option	$ 30									30
Exercise of common stock option, shares	26,689					26,689
Temporary equity conversion of convertible preferred stock to common stock, shares																(9,993,727)
Temporary equity conversion of convertible preferred stock to common stock																$ (34,900)
Conversion of convertible preferred stock to common stock upon closing of IPO																	10,990,065
Conversion of convertible preferred stock to common stock upon closing of IPO	$ 34,900														$ 34,900		$ 1	$ 34,899
Stock-based compensation expense	2,195									2,195
Net loss	(14,653)													(14,653)
Temporary equity amount ending at Dec. 31, 2021	0
Shares ending at Dec. 31, 2021						18,781,242
Balance ending at Dec. 31, 2021	$ 38,183					$ 2				$ 70,872				$ (32,691)