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Description of Business and Basis of Financial Statements (Details) $ in Thousands	110 Months Ended
	Jun. 30, 2023 USD ($) employee lease	Dec. 31, 2022 USD ($)
Accounting Policies [Abstract]
Number of employees | employee	75
Number of development programs | lease	3
Accumulated deficit	$ (366,551)	$ (317,280)
Proceeds from issuance of private placement	355,600
Cash and cash equivalents	$ 77,294	$ 106,745

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.

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Amount of accumulated undistributed earnings (deficit).

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