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MORTGAGE SERVICING RIGHTS - Additional Information (Details)	3 Months Ended
	Mar. 31, 2026 USD ($) sub-servicer	Mar. 31, 2025 USD ($)
Mortgage Servicing Rights MSR [Line Items]
Number of sub-servicers | sub-servicer	2
Mortgage servicing rights
Mortgage Servicing Rights MSR [Line Items]
Loans associated with MSRs | $	$ 52,755,018	$ 60,896,737

X

- Definition

It represents the mortgage loans associated.

+ References

No definition available.

+ Details

Name:	oaks_MortgageLoansAssociated
Namespace Prefix:	oaks_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Mortgage Servicing Rights MSR

+ References

No definition available.

+ Details

Name:	oaks_MortgageServicingRightsMSRLineItems
Namespace Prefix:	oaks_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of Sub-Servers

+ References

No definition available.

+ Details

Name:	oaks_NumberOfSubServers
Namespace Prefix:	oaks_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=oaks_MortgageServicingRightsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: