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Income Taxes - Tax Credit Carryforwards (Details) - Research Tax Credit Carryforward - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
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UNITED STATES |  |
Tax Credit Carryforward [Line Items] |  |
Tax credit carryforward, amount | $ 7.2 | $ 4.5
MASSACHUSETTS |  |
Tax Credit Carryforward [Line Items] |  |
Tax credit carryforward, amount | $ 3.5 | $ 2.1

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + 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 + Details
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