Subsequent Events - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended	9 Months Ended
	Oct. 06, 2020	Oct. 01, 2020	Sep. 30, 2020	Sep. 30, 2020	Oct. 07, 2020	Jun. 30, 2020	Dec. 31, 2019
Subsequent Event [Line Items]
Outstanding shares of preferred stock automatically converted			30,355,379	30,355,379			13,416,155
Expenses				$ 4,473
Common stock, shares authorized			370,000,000	370,000,000			180,000,000
Common stock, par value per share			$ 0.0001	$ 0.0001			$ 0.0001
2020 Stock Option and Incentive Plan | Stock Options
Subsequent Event [Line Items]
Stock-based compensation, options vesting description				These options vest quarterly over four years subject to cliff vesting after six months. Mr. Cohen’s award is subject to full acceleration upon a sale of the Company and Mr. Hirsch’s award is subject to full acceleration upon a sale of the Company and the termination of his employment thereafter pursuant to the terms of his employment agreement, subject to Mr. Hirsch’s execution of an effective release of claims in favor of the Company.
2020 Stock Option and Incentive Plan | Stock Options | Co-founder, Executive Chairman and Interim Chief Executive Officer
Subsequent Event [Line Items]
Percentage of fully-diluted shares for issuance of stock option			1.50%
2020 Stock Option and Incentive Plan | Stock Options | President, Director and Chief Executive Officer-elect
Subsequent Event [Line Items]
Percentage of fully-diluted shares for issuance of stock option			3.50%
2020 Stock Option and Incentive Plan | Stock Options | Directors And Certain Employees
Subsequent Event [Line Items]
Stock-based compensation, options vesting description				These shares will vest over one- to four-year periods, subject to the recipient maintaining a business relationship with the Company through the applicable vesting date.
Number of additional shares approved for grant			192,681
Series B Preferred Stock
Subsequent Event [Line Items]
Warrant issued to purchase shares						2,857,142
Subsequent Event | 2020 Stock Option and Incentive Plan | Stock Options
Subsequent Event [Line Items]
Stock option, exercise price		$ 19.00
Stock-based compensation, options vesting period		4 years
Subsequent Event | 2020 Stock Option and Incentive Plan | Stock Options | Directors And Certain Employees
Subsequent Event [Line Items]
Number of shares awarded		192,681
Stock option, exercise price		$ 19.00
Subsequent Event | 2020 Stock Option and Incentive Plan | Stock Options | Directors And Certain Employees | Minimum
Subsequent Event [Line Items]
Stock-based compensation, options vesting period		1 year
Subsequent Event | 2020 Stock Option and Incentive Plan | Stock Options | Directors And Certain Employees | Maximum
Subsequent Event [Line Items]
Stock-based compensation, options vesting period		4 years
Subsequent Event | IPO
Subsequent Event [Line Items]
Preferred stock, outstanding	0				0
Common stock, shares authorized	150,000,000
Preferred stock, shares authorized	10,000,000
Common stock, par value per share	$ 0.0001
Preferred stock, par value	$ 0.0001
Number of preferred stock converted in to one common stock	8.4335
Subsequent Event | IPO | 2020 Stock Option and Incentive Plan | Stock Options | Co-founder, Executive Chairman and Interim Chief Executive Officer
Subsequent Event [Line Items]
Number of shares awarded	725,002
Subsequent Event | IPO | 2020 Stock Option and Incentive Plan | Stock Options | President, Director and Chief Executive Officer-elect
Subsequent Event [Line Items]
Number of shares awarded	1,691,672
Subsequent Event | Common Stock | IPO
Subsequent Event [Line Items]
Initial public offering closing date	Oct. 06, 2020
Issued shares of common stock	11,040,000
Shares issued price per share	$ 19.00
Outstanding shares of preferred stock automatically converted	30,355,379
Net proceeds including exercise in full of underwriters option to purchase additional shares	$ 191,100
Underwriting discounts and commissions	14,700
Expenses	$ 4,000
Subsequent Event | Common Stock | IPO | Warrant Exercisable
Subsequent Event [Line Items]
Number of warrants converted into shares	338,784
Subsequent Event | Underwriters for IPO Exercised in full Overallotment Option | Common Stock | IPO
Subsequent Event [Line Items]
Issued shares of common stock	1,440,000