Offering discounts, commissions and offering costs, net.

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Organization and basis of presentation.

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Cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the customer may deposit additional funds at any time and effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid Investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Short-term investments, exclusive of cash equivalents, generally consist of marketable securities intended to be sold within one year (or the normal operating cycle if longer) and may include trading securities, available-for-sale securities, or held-to-maturity securities (if maturing within one year), as applicable.

+ References

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-Name Accounting Standards Codification
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- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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- Definition

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

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The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

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- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Organization and Basis of Presentation - Additional Information (Details) $ in Thousands				3 Months Ended	12 Months Ended
	Aug. 12, 2022 USD ($)	Apr. 18, 2022 USD ($)	Aug. 13, 2019 USD ($)	Mar. 31, 2020 USD ($) shares	Dec. 31, 2022 USD ($) Segment shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($)
Organization And Basis Of Presentation [Line Items]
Number of operating segments \| Segment					1
Unrestricted cash, cash equivalents and investments securities					$ 334,400
Common stock and paid-in capital, shares issued \| shares					53,877,000	47,598,000
Proceeds from issuance of common stock, net	$ 150,000		$ 75,000		$ 117,242	$ 249,542	$ 114,283
Accumulated deficit					$ 439,173	$ 275,255
ATM Offering
Organization And Basis Of Presentation [Line Items]
Common stock and paid-in capital, shares issued \| shares				275,764	275,764
Proceeds from issuance of common stock, net				$ 6,400	$ 6,400
Commissions					200
Common Stock
Organization And Basis Of Presentation [Line Items]
Proceeds from issuance of common stock, net		$ 117,200
Commissions		$ 7,800
Common Stock \| Maximum \| ATM Offering
Organization And Basis Of Presentation [Line Items]
Proceeds from sale of common stock					$ 150,000