Condensed Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Total	Series A Convertible Preferred Stock	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Gain (Loss)	Accumulated Deficit
Balance at Dec. 31, 2020	$ 5,169		$ 1	$ 13,343		$ (8,175)
Balance (in shares) at Dec. 31, 2020		7,064,925
Balance at Dec. 31, 2020		$ 55,738
Balance (in shares) at Dec. 31, 2020			11,953,107
Series A financing costs		$ (3)
Issuance of restricted stock (in shares)			51,526
Stock-based compensation expense	919			919
Unrealized loss on investments	(15)				$ (15)
Net loss	(5,852)					(5,852)
Balance at Mar. 31, 2021	221		$ 1	14,262	(15)	(14,027)
Balance (in shares) at Mar. 31, 2021		7,064,925
Balance at Mar. 31, 2021		$ 55,735
Balance (in shares) at Mar. 31, 2021			12,004,633
Balance at Dec. 31, 2021	178,783		$ 3	228,532	(10)	(49,742)
Balance (in shares) at Dec. 31, 2021			29,115,421
Exercise of stock options	$ 31			31
Exercise of stock options, (in shares)	6,044		6,044
Issuance of restricted stock (in shares)			47,216
Stock-based compensation expense	$ 2,330			2,330
Unrealized loss on investments	(13)				(13)
Net loss	(16,366)					(16,366)
Balance at Mar. 31, 2022	$ 164,765		$ 3	$ 230,893	$ (23)	$ (66,108)
Balance (in shares) at Mar. 31, 2022			29,168,681