Aggregate Offering Price Of Common Stock, Preferred Stock, Debt Securities And Warrants

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Working capital.

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The cash inflow from the capital received in cash from a partner in a partnership during the period.

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Receivables to be collected from (obligations owed to) related parties, net as of the balance sheet date where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Organization and Description of Business - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Jan. 31, 2020	Dec. 31, 2018
Related Party Transaction [Line Items]
Accumulated deficit	$ 162,158,000		$ 122,911,000
Cash and cash equivalents	74,025,000		$ 61,031,000
Working capital	70,300,000
Aggregate offering price	200,000,000
SFJ Pharmaceuticals X, Ltd.
Related Party Transaction [Line Items]
Proceeds from partnership contribution	80,000,000
Equity Distribution Agreement with Citigroup Global Markets Inc. and William Blair & Company, L.L.C.
Related Party Transaction [Line Items]
Aggregate offering price	$ 60,000,000
Subsequent Event \| SFJ Pharmaceuticals
Related Party Transaction [Line Items]
Payments in co-development agreement		$ 120,000,000.0
Subsequent Event \| Initial Payment \| SFJ Pharmaceuticals
Related Party Transaction [Line Items]
Payments in co-development agreement		$ 10,000,000