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Description of Business and Financial Condition (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accumulated deficit	$ (221,219)	$ (210,654)
Fair Value	$ 99,705	$ 104,033

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Cash And Cash Equivalents, Debt Securities Available-For-Sale, Fair Value

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Amount of accumulated undistributed earnings (deficit).

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