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Summary of Significant Accounting Policies - Stock-Based Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Stock-Based Compensation
Stock-based compensation expense	$ 3,362	$ 1,390
Tax benefits recognized from stock-based compensation expense	0	0
Research and development
Stock-Based Compensation
Stock-based compensation expense	1,132	599
General and administrative
Stock-Based Compensation
Stock-based compensation expense	$ 2,230	$ 791

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
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