CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT) (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Balance at Dec. 31, 2020	$ 158,103	$ 2	$ 249,175	$ 2	$ (91,076)
Balance, shares at Dec. 31, 2020		23,384,969
Stock-based compensation	1,577		1,577
Exercise of stock options	249		249
Exercise of stock options, shares		88,734
Comprehensive loss:
Unrealized loss on investments	10			10
Net loss	(11,050)				(11,050)
Balance at Mar. 31, 2021	148,889	$ 2	251,001	12	(102,126)
Balance, shares at Mar. 31, 2021		23,473,703
Balance at Dec. 31, 2020	158,103	$ 2	249,175	2	(91,076)
Balance, shares at Dec. 31, 2020		23,384,969
Comprehensive loss:
Net loss	(23,590)
Balance at Jun. 30, 2021	138,274	$ 2	252,920	18	(114,666)
Balance, shares at Jun. 30, 2021		23,570,593
Balance at Dec. 31, 2020	158,103	$ 2	249,175	2	(91,076)
Balance, shares at Dec. 31, 2020		23,384,969
Comprehensive loss:
Net loss	(56,600)
Balance at Dec. 31, 2021	109,268	$ 2	256,948	18	(147,700)
Balance, shares at Dec. 31, 2021		23,668,747
Balance at Mar. 31, 2021	148,889	$ 2	251,001	12	(102,126)
Balance, shares at Mar. 31, 2021		23,473,703
Stock-based compensation	1,813		1,813
Exercise of stock options	106		106
Exercise of stock options, shares		96,890
Comprehensive loss:
Unrealized loss on investments	6			6
Net loss	(12,540)				(12,540)
Balance at Jun. 30, 2021	138,274	$ 2	252,920	18	(114,666)
Balance, shares at Jun. 30, 2021		23,570,593
Balance at Dec. 31, 2021	109,268	$ 2	256,948	18	(147,700)
Balance, shares at Dec. 31, 2021		23,668,747
Stock-based compensation	1,752		1,752
Exercise of stock options	240		240
Exercise of stock options, shares		149,664
Comprehensive loss:
Unrealized loss on investments	(132)			(132)
Foreign currency translation adjustment	(15)			(15)
Net loss	(16,884)				(16,884)
Balance at Mar. 31, 2022	94,229	$ 2	258,940	(129)	(164,584)
Balance, shares at Mar. 31, 2022		23,818,411
Balance at Dec. 31, 2021	$ 109,268	$ 2	256,948	18	(147,700)
Balance, shares at Dec. 31, 2021		23,668,747
Exercise of stock options, shares	151,342
Comprehensive loss:
Net loss	$ (32,145)
Balance at Jun. 30, 2022	149,176	$ 4	329,414	(397)	(179,845)
Balance, shares at Jun. 30, 2022		40,097,076
Balance at Mar. 31, 2022	94,229	$ 2	258,940	(129)	(164,584)
Balance, shares at Mar. 31, 2022		23,818,411
Stock-based compensation	2,185		2,185
Issuance of common stock, net of issuance costs	56,137	$ 2	56,135
Issuance of common stock, net of issuance costs, shares		16,276,987
Issuance of pre-funded warrants, net of issuance costs	12,150		12,150
Exercise of stock options	4		4
Exercise of stock options, shares		1,678
Comprehensive loss:
Unrealized loss on investments	(225)			(225)
Foreign currency translation adjustment	(43)			(43)
Net loss	(15,261)				(15,261)
Balance at Jun. 30, 2022	$ 149,176	$ 4	$ 329,414	$ (397)	$ (179,845)
Balance, shares at Jun. 30, 2022		40,097,076