CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' (DEFICIT) EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive (Loss) Income	Accumulated Deficit	Series A convertible preferred stock	Series B convertible preferred stock	Series C convertible preferred stock	Series D convertible preferred stock
Balance at Dec. 31, 2019	$ (121,796)		$ 1,546	$ 10	$ (123,352)
Balance, Shares at Dec. 31, 2019						57,758,734	12,500,000	27,528,581
Balance at Dec. 31, 2019						$ 57,682	$ 24,957	$ 55,005
Balance, Shares at Dec. 31, 2019		434,942
Issuance of convertible preferred stock								$ 4,446
Issuance of convertible preferred stock, Shares								10,000,000
Extinguishment of Series A, Series B and Series C convertible preferred stock						$ (41,506)	$ (19,257)	$ (42,692)
Extinguishment of Series A, Series B and Series C convertible preferred stock, value	103,455		103,455
Issuance of Series D convertible preferred stock, net of issuance costs of $345									$ 54,456
Issuance of Series D convertible preferred stock, net of issuance costs of $345, Shares									31,740,554
Issuance of common stock upon exercise of stock options	70		70
Issuance of common stock upon exercise of stock options, Shares		15,849
Vesting of restricted common stock	24	$ 1	23
Vesting of restricted common stock, Shares		70,261
Stock-based compensation expense	2,814		2,814
Unrealized loss on available-for-sale securities	(11)			(11)
Net loss	(39,337)				(39,337)
Balance at Dec. 31, 2020	$ (54,781)	$ 1	107,908	(1)	(162,689)
Balance, Shares at Dec. 31, 2020	139,527,869					57,758,734	12,500,000	37,528,581	31,740,554
Balance at Dec. 31, 2020	$ 93,091					$ 16,176	$ 5,700	$ 16,759	$ 54,456
Balance, Shares at Dec. 31, 2020		521,052
Issuance of convertible preferred stock									$ 27,400
Issuance of convertible preferred stock, Shares									15,870,209
Issuance of common stock upon exercise of stock options	319		319
Issuance of common stock upon exercise of stock options, Shares		72,161
Vesting of restricted common stock	18		18
Vesting of restricted common stock, Shares		34,759
Stock-based compensation expense	2,817		2,817
Conversion of convertible preferred stock into common stock upon completion of initial public offering	120,491	$ 17	120,474
Conversion of convertible preferred stock into common stock upon completion of initial public offering, Shares						(57,758,734)	(12,500,000)	(37,528,581)	(47,610,763)
Conversion of convertible preferred stock into common stock upon completion of initial public offering						$ (16,176)	$ (5,700)	$ (16,759)	$ (81,856)
Conversion of convertible preferred stock into common stock upon completion of initial public offering, Shares		16,662,011
Issuance of common stock upon completion of initial public offering, net of commissions, underwriting discounts and offering costs	124,779	$ 7	124,772
Issuance of common stock upon completion of initial public offering, net of commissions, underwriting discounts and offering costs, Shares		7,662,000
Unrealized loss on available-for-sale securities	(131)			(131)
Net loss	(51,823)				(51,823)
Balance at Dec. 31, 2021	$ 141,689	$ 25	$ 356,308	$ (132)	$ (214,512)
Balance, Shares at Dec. 31, 2021						0	0	0	0
Balance, Shares at Dec. 31, 2021		24,951,983