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Commitments and Contingencies - Additional Information (Details) - USD ($) | Jun. 30, 2025 | Dec. 31, 2024
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Commitments and Contingencies Disclosure [Abstract] |  |
Loss or material costs related to indemnification obligation | $ 0 |
Claims outstanding | 0 |
Liabilities related to obligation | $ 0 | $ 0

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- Definition Claims outstanding. + References No definition available. + Details
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Namespace Prefix: | guts_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Loss or material costs related to indemnification obligation. + References No definition available. + Details
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Namespace Prefix: | guts_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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- Definition Amount of contractual obligation, including, but not limited to, long-term debt, lease obligation, purchase obligation, and other commitments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-3 + Details
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