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Summary of Significant Accounting Policies - Schedule of Gross Carrying Amount of Capitalized Internally Developed Software Costs (Details) - USD ($)	Mar. 31, 2025	Dec. 31, 2024
Schedule of Capitalized Software Development Costs [Abstract]
Capitalized software not placed into service	$ 555,534	$ 348,058

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- Definition

Capitalized software not placed into service.

+ References

No definition available.

+ Details

Name:	fldd_CapitalizedSoftwareNotPlacedIntoService
Namespace Prefix:	fldd_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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- References

No definition available.

+ Details

Name:	us-gaap_CapitalizedComputerSoftwareNetAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration