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v3.26.1

Subsequent Events (Details) - unit | Mar. 31, 2026 | Oct. 22, 2025
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Subsequent Events [Abstract] |  |
Number of pieces of equipment subject to lease | 7 | 7

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- Definition Operating Lease, Number Of Pieces Of Equipment Subject To Lease + References No definition available. + Details
Name: | frmi_OperatingLeaseNumberOfPiecesOfEquipmentSubjectToLease
Namespace Prefix: | frmi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_SubsequentEventsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration