Condensed Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Cumulative Effect Period Of Adoption Adjustment	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Accumulated Deficit	Accumulated Deficit Cumulative Effect Period Of Adoption Adjustment
Balance at Dec. 31, 2021	$ 44,104		$ 1	$ 293,648	$ 11	$ (249,556)
Balance, shares at Dec. 31, 2021			1,441,145
Issuance of common stock upon exercise of stock options	3			3
Issuance of common stock upon exercise of stock options, shares			258
Vesting of early exercised stock options	39			39
Stock-based compensation expense	1,523			1,523
Net loss	(10,925)					(10,925)
Balance at Mar. 31, 2022	34,744		$ 1	295,213	11	(260,481)
Balance, shares at Mar. 31, 2022			1,441,403
Balance at Dec. 31, 2021	44,104		$ 1	293,648	11	(249,556)
Balance, shares at Dec. 31, 2021			1,441,145
Net loss	(27,867)
Balance at Sep. 30, 2022	21,538		$ 1	298,949	11	(277,423)
Balance, shares at Sep. 30, 2022			1,448,422
Balance at Mar. 31, 2022	34,744		$ 1	295,213	11	(260,481)
Balance, shares at Mar. 31, 2022			1,441,403
Issuance of common stock upon exercise of stock options	18			18
Issuance of common stock upon exercise of stock options, shares			1,435
Vesting of early exercised stock options	25			25
Stock-based compensation expense	1,676			1,676
Net loss	(5,613)					(5,613)
Balance at Jun. 30, 2022	30,850		$ 1	296,932	11	(266,094)
Balance, shares at Jun. 30, 2022			1,442,838
Issuance of common stock upon release of RSUs, shares			4,438
Issuance of common stock upon exercise of stock options	13			13
Issuance of common stock upon exercise of stock options, shares			1,146
Vesting of early exercised stock options	27			27
Stock-based compensation expense	1,977			1,977
Net loss	(11,329)					(11,329)
Balance at Sep. 30, 2022	21,538		$ 1	298,949	11	(277,423)
Balance, shares at Sep. 30, 2022			1,448,422
Balance at Dec. 31, 2022	17,181	$ 155	$ 1	300,837	11	(283,668)	$ 155
Balance, shares at Dec. 31, 2022			1,490,761
Accounting Standards Update [Extensible List]		ASU 2016 -13					ASU 2016 -13
Proceeds from issuance of common stock, Share Purchase Agreement, net	26,774		$ 7	26,767
Proceeds from issuance of common stock, Share Purchase Agreement, net, shares			7,331,377
Issuance of common stock upon release of RSUs, shares			17,821
Vesting of early exercised stock options	30			30
Stock-based compensation expense	1,274			1,274
Net loss	(11,343)					(11,343)
Balance at Mar. 31, 2023	34,071		$ 8	328,908	11	(294,856)
Balance, shares at Mar. 31, 2023			8,839,959
Balance at Dec. 31, 2022	$ 17,181	$ 155	$ 1	300,837	11	(283,668)	$ 155
Balance, shares at Dec. 31, 2022			1,490,761
Issuance of common stock upon exercise of stock options, shares	1,591
Net loss	$ (27,205)
Balance at Sep. 30, 2023	20,255		$ 9	330,953	11	(310,718)
Balance, shares at Sep. 30, 2023			8,878,582
Balance at Mar. 31, 2023	34,071		$ 8	328,908	11	(294,856)
Balance, shares at Mar. 31, 2023			8,839,959
Issuance of common stock upon release of RSUs, shares			13,029
Issuance of common stock upon exercise of stock options, shares			984
ESPP purchase	79		$ 1	78
ESPP purchase, shares			23,641
Vesting of early exercised stock options	20			20
Stock-based compensation expense	1,098			1,098
Net loss	(8,681)					(8,681)
Balance at Jun. 30, 2023	26,587		$ 9	330,104	11	(303,537)
Balance, shares at Jun. 30, 2023			8,877,613
Issuance of common stock upon release of RSUs, shares			362
Issuance of common stock upon exercise of stock options, shares			607
Vesting of early exercised stock options	16			16
Stock-based compensation expense	833			833
Net loss	(7,181)					(7,181)
Balance at Sep. 30, 2023	$ 20,255		$ 9	$ 330,953	$ 11	$ (310,718)
Balance, shares at Sep. 30, 2023			8,878,582