CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK, COMMON STOCK AND STOCKHOLDERS' EQUITY (DEFICIT) (Unaudited) - USD ($) $ in Thousands	Total	Convertible Preferred Stock Series AA	Convertible Preferred Stock Series BB	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2020	$ (56,443)				$ 55,969	$ (112,412)
Temporary equity, Beginning balance, shares at Dec. 31, 2020		747,683,172	52,680,306
Temporary equity, Beginning balance at Dec. 31, 2020		$ 61,411	$ 10,925
Beginning balance, shares at Dec. 31, 2020				1,875,422
Stock-based compensation expense	1,349				1,349
Issuance of preferred stock			$ 23,491
Issuance of preferred stock, shares			113,275,902
Temporary equity, Conversion of preferred stock to common stock upon closing of the initial public offering		$ (61,411)	$ (34,416)
Temporary equity, Conversion of preferred stock to common stock upon closing of the initial public offering, shares		(747,683,172)	(165,956,208)
Issuance of common stock upon closing of the initial public offering, net of issuance costs	138,489			$ 1	138,488
Issuance of common stock upon closing of the initial public offering, net of issuance costs, shares				8,030,295
Exercise of common stock warrants	1				1
Exercise of common stock warrants, shares				1,648,709
Conversion of preferred stock to common stock upon closing of the initial public offering	95,828			$ 2	95,826
Conversion of preferred stock to common stock upon closing of the initial public offering, shares				19,034,069
Net loss	(7,972)					(7,972)
Ending balance at Mar. 31, 2021	171,252			$ 3	291,633	(120,384)
Ending balance, shares at Mar. 31, 2021				30,588,495
Beginning balance at Dec. 31, 2020	(56,443)				55,969	(112,412)
Temporary equity, Beginning balance, shares at Dec. 31, 2020		747,683,172	52,680,306
Temporary equity, Beginning balance at Dec. 31, 2020		$ 61,411	$ 10,925
Beginning balance, shares at Dec. 31, 2020				1,875,422
Unrealized gains (loss) on marketable securities	(101)
Net loss	(17,743)
Ending balance at Jun. 30, 2021	163,125			$ 3	293,378	(130,155)	$ (101)
Ending balance, shares at Jun. 30, 2021				30,588,495
Beginning balance at Mar. 31, 2021	171,252			$ 3	291,633	(120,384)
Beginning balance, shares at Mar. 31, 2021				30,588,495
Stock-based compensation expense	1,745				1,745
Unrealized gains (loss) on marketable securities	(101)						(101)
Net loss	(9,771)					(9,771)
Ending balance at Jun. 30, 2021	163,125			$ 3	293,378	(130,155)	(101)
Ending balance, shares at Jun. 30, 2021				30,588,495
Beginning balance at Dec. 31, 2021	146,513			$ 3	296,049	(149,206)	(333)
Beginning balance, shares at Dec. 31, 2021				30,609,029
Stock-based compensation expense	1,515				1,515
Exercise of options into common stock	237				237
Exercise of options into common stock, shares				73,784
Employee stock purchase plan expense	14				14
Unrealized gains (loss) on marketable securities	(566)						(566)
Net loss	(12,405)					(12,405)
Ending balance at Mar. 31, 2022	135,308			$ 3	297,815	(161,611)	(899)
Ending balance, shares at Mar. 31, 2022				30,682,813
Beginning balance at Dec. 31, 2021	$ 146,513			$ 3	296,049	(149,206)	(333)
Beginning balance, shares at Dec. 31, 2021				30,609,029
Exercise of options into common stock, shares	73,784
Unrealized gains (loss) on marketable securities	$ (879)
Net loss	(22,940)
Ending balance at Jun. 30, 2022	125,916			$ 3	299,271	(172,146)	(1,212)
Ending balance, shares at Jun. 30, 2022				30,720,291
Beginning balance at Mar. 31, 2022	135,308			$ 3	297,815	(161,611)	(899)
Beginning balance, shares at Mar. 31, 2022				30,682,813
Stock-based compensation expense	1,396				1,396
Employee stock purchase plan expense	60				60
Employee stock purchase plan expense, Shares				37,478
Unrealized gains (loss) on marketable securities	(313)						(313)
Net loss	(10,535)					(10,535)
Ending balance at Jun. 30, 2022	$ 125,916			$ 3	$ 299,271	$ (172,146)	$ (1,212)
Ending balance, shares at Jun. 30, 2022				30,720,291