Income Taxes - Additional disclosures (Details) - USD ($)	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024
Income taxes
Net change in valuation allowance	$ 8,600,000	$ 7,100,000
Accrued interest or penalties	0
Recognized income tax interest and penalties	0
U.S.
Income taxes
Net operating loss carryforwards	72,400,000
U.S. \| Research and development tax credit carryforwards
Income taxes
Tax credit carryforward	6,800,000
State
Income taxes
Net operating loss carryforwards	$ 74,900,000

The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-15

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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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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-3

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

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