Annual increased percentage on outstanding common stock reserved.

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- Definition

Aggregate number of common shares reserved for future issuance.

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- Definition

Face amount or stated value per share of common stock.

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- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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- Definition

Number of shares issued for each share of convertible preferred stock that is converted.

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- Definition

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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- Definition

The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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- Definition

The cash inflow from the additional capital contribution to the entity.

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- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Number of shares issued which are neither cancelled nor held in the treasury.

+ References

No definition available.

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- Definition

Number of new stock issued during the period.

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- Definition

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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- Definition

Description of the reverse stock split arrangement. Also provide the retroactive effect given by the reverse split that occurs after the balance sheet date but before the release of financial statements.

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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No definition available.

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Subsequent Events - Additional Information (Details) $ / shares in Units, $ in Millions	Oct. 16, 2020 USD ($) $ / shares shares	Oct. 02, 2020	Oct. 12, 2020 shares	Sep. 30, 2020 $ / shares shares	Dec. 31, 2019 $ / shares shares
Subsequent Event [Line Items]
Conversion of redeemable convertible preferred stock into common stock				9,464,924	9,456,928
Common stock, shares authorized				150,000,000	120,000,000
Common stock, par value \| $ / shares				$ 0.0001	$ 0.0001
Shares of common stock reserved for future issuance				14,280,326	13,781,623
Redeemable Convertible Preferred Stock
Subsequent Event [Line Items]
Conversion of redeemable convertible preferred stock into common stock				0.1279
Subsequent Event
Subsequent Event [Line Items]
Stockholders' equity, reverse stock split		1-for-7.8170
Stock split, conversion ratio		0.127926
Subsequent Event \| 2020 Stock Option and Incentive Plan
Subsequent Event [Line Items]
Shares of common stock reserved for future issuance			1,043,402
Subsequent Event \| 2020 Stock Option and Incentive Plan \| Maximum
Subsequent Event [Line Items]
Annual increased percentage on outstanding common stock reserved			5.00%
Subsequent Event \| 2015 Stock Option and Incentive Plan
Subsequent Event [Line Items]
Shares of common stock reserved for future issuance			274,057
Subsequent Event \| 2020 Employee Stock Purchase Plan \| Maximum
Subsequent Event [Line Items]
Shares of common stock reserved for future issuance			834,720
Annual increased percentage on outstanding common stock reserved			0.50%
Number of shares available for future issuance			208,680
Subsequent Event \| IPO
Subsequent Event [Line Items]
Issuance of common stock in connection with license agreement, shares	5,500,000
Common stock, offering price \| $ / shares	$ 15.00
Net proceeds from issuance of common stock \| $	$ 74.4
Conversion of redeemable convertible preferred stock into common stock	10,065,629
Common stock, shares authorized	150,000,000
Common stock, par value \| $ / shares	$ 0.0001
Preferred stock, shares authorized	10,000,000
preferred stock, par value \| $ / shares	$ 0.0001
Subsequent Event \| IPO \| Redeemable Convertible Preferred Stock
Subsequent Event [Line Items]
Shares outstanding	73,987,407
Conversion of redeemable convertible preferred stock into common stock	10,065,629