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Income Taxes - Narrative (Details)	12 Months Ended
	Dec. 31, 2023 USD ($)
Operating loss carryforwards (NOLs)
Interest and/or penalties incurred	$ 0
Federal
Operating loss carryforwards (NOLs)
NOLs, subject to expiration	5,100,000
NOLs, not subject to expiration	99,200,000
California Franchise Tax Board
Operating loss carryforwards (NOLs)
NOLs	22,200,000
R&D credits | Federal
Operating loss carryforwards (NOLs)
Tax credits	1,600,000
R&D credits | California Franchise Tax Board
Operating loss carryforwards (NOLs)
Tax credits	$ 2,600,000

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The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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