Stockholders' equity - Additional Information (Details) - USD ($)		1 Months Ended			12 Months Ended
	Jan. 01, 2021	Nov. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Dec. 31, 2022	Dec. 31, 2021	Nov. 08, 2022	Dec. 31, 2020
Class Of Stock [Line Items]
Preferred Stock, Shares Issued					0	0
Common Stock, Shares, Issued					46,336,166	35,799,233
Preferred Stock, Shares Authorized					200,000,000	200,000,000
Preferred Stock, Par or Stated Value Per Share					$ 0.0001	$ 0.0001
Common Stock, Shares Authorized					350,000,000	350,000,000
Common Stock, Par or Stated Value Per Share					$ 0.0001	$ 0.0001
Conversion of stock, description					Holders of the Company’s common stock have no conversion rights, while holders of the Company’s Class B common stock shall have the right to convert each share of Class B common stock into one share of common stock at such holder’s election, provided that as a result of such conversion, such holder would not beneficially own in excess of 4.99% of any class of the Company’s securities registered under the Securities Exchange Act of 1934
Period related to changing of ownership limitation percentage designated by Class B common stock holder					61 days
Warrants Expired And Unexercised			151,088			566,586
Vesting period			450 days			365 days
Fair value of options, vested					$ 6,900	$ 1,900,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition					1 year 3 months 18 days
Total number of common shares reserved for issuance					7,329,913	6,247,701
Equity Option
Class Of Stock [Line Items]
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount					$ 14,900,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition					2 years 10 months 24 days
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value					$ 4.06	$ 24.61
Restricted Stock Units (RSUs)
Class Of Stock [Line Items]
Number of outstanding shares					510,039	975,046		1,920,037
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount					$ 9,200
Private Placement of Common Stock
Class Of Stock [Line Items]
Sale of stock price per share				$ 28.00
Common Stock, Shares, Issued				2,678,600
Proceeds from the Private Placement, net of underwriting discounts and commissions and other offering costs				$ 71,000.0
2020 Equity Incentive Plan
Class Of Stock [Line Items]
Common shares authorized for issuance					7,658,509	6,226,540
Shares available for awards, description	4
Vesting percentage					25.00%
Vesting period					36 months
Vesting terms, description					ten years
Employees Stock Purchase Plan Shares
Class Of Stock [Line Items]
Common Stock, Shares, Issued					147,564	11,182
Common Stock, Shares Authorized					1,229,148	833,993
Purchase common stock through payroll deductions of up to compensations, percent					15.00%
Share Based Compensation Arrangement By Share Based Payment Award Percentage Of Outstanding Stock Maximum					1.00%
Increase in issuance of common stock					929,658
Total number of common shares reserved for issuance					1,070,402
Stock-based compensation expense					$ 200,000	$ 100,000
November 2022 Underwritten Offering
Class Of Stock [Line Items]
Sale of stock price per share							$ 6.67
Common Stock, Shares, Issued							9,745,128
Proceeds from Underwritten Offering, net of underwriting discounts and commissions and other offering costs		$ 61,700
IPO
Class Of Stock [Line Items]
Vesting terms, description					The warrants became exercisable upon our IPO for a period of 365 and 450 days
Class B Common Stock
Class Of Stock [Line Items]
Common Stock, Shares, Issued					1,211,959	1,492,059
Common Stock, Shares Authorized					15,368,569	15,368,569
Common Stock, Par or Stated Value Per Share					$ 0.0001	$ 0.0001
Common Stock
Class Of Stock [Line Items]
Common stock, voting rights					one