XML 44 R34.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Loans Held for Investment - Schedule of Portfolio Information (Details) - USD ($) | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
Principal Balance | $ 45,902,453 | $ 87,436,546
Carrying value | $ 30,387,896 | $ 78,343,464
% of Total | 100.00% | 100.00%
California |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
Principal Balance | $ 18,567,296 | $ 21,567,296
Carrying value | $ 18,575,895 | $ 21,465,171
California | Geographic Location Concentration Risk | Investment Owned At Cost |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
% of Total | 61.10% | 27.40%
New York |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
Principal Balance | $ 27,335,157 | $ 27,119,250
Carrying value | $ 11,812,001 | $ 17,884,930
New York | Geographic Location Concentration Risk | Investment Owned At Cost |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
% of Total | 38.90% | 22.80%
Utah |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
Principal Balance | $ 0 | $ 21,250,000
Carrying value | $ 0 | $ 21,462,168
Utah | Geographic Location Concentration Risk | Investment Owned At Cost |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
% of Total | 0.00% | 27.40%
Georgia |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
Principal Balance | $ 0 | $ 17,500,000
Carrying value | $ 0 | $ 17,531,195
Georgia | Geographic Location Concentration Risk | Investment Owned At Cost |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
% of Total | 0.00% | 22.40%
Total | Geographic Location Concentration Risk | Investment Owned At Cost |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
% of Total | 100.00% | 100.00%
Mixed use |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
Principal Balance | $ 18,567,296 | $ 18,567,296
Carrying value | $ 18,575,895 | $ 18,557,439
Mixed use | Property Type Concentration Risk | Investment Owned At Cost |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
% of Total | 61.10% | 23.70%
Office |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
Principal Balance | $ 24,491,877 | $ 24,491,877
Carrying value | $ 9,238,721 | $ 15,257,557
Office | Property Type Concentration Risk | Investment Owned At Cost |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
% of Total | 30.40% | 19.50%
Multifamily |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
Principal Balance | $ 2,843,280 | $ 20,127,373
Carrying value | $ 2,573,280 | $ 20,158,568
Multifamily | Property Type Concentration Risk | Investment Owned At Cost |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
% of Total | 8.50% | 25.70%
Infrastructure |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
Principal Balance | $ 0 | $ 21,250,000
Carrying value | $ 0 | $ 21,462,168
Infrastructure | Property Type Concentration Risk | Investment Owned At Cost |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
% of Total | 0.00% | 27.40%
Student housing |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
Principal Balance | $ 0 | $ 3,000,000
Carrying value | $ 0 | $ 2,907,732
Student housing | Property Type Concentration Risk | Investment Owned At Cost |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
% of Total | 0.00% | 3.70%
Total | Property Type Concentration Risk | Investment Owned At Cost |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
% of Total | 100.00% | 100.00%
Preferred equity investments |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
Principal Balance | $ 45,902,453 | $ 63,186,546
Carrying value | $ 30,387,896 | $ 53,973,564
% of Total | 100.00% | 68.90%
First mortgages |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
Principal Balance | $ 0 | $ 21,250,000
Carrying value | $ 0 | $ 21,462,168
% of Total | 0.00% | 27.40%
Mezzanine loans |  |
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract] |  |
Principal Balance | $ 0 | $ 3,000,000
Carrying value | $ 0 | $ 2,907,732
% of Total | 0.00% | 3.70%

X
- Definition Percent Of Loan Portfolio Holdings + References No definition available. + Details
Name: | tfsa_PercentOfLoanPortfolioHoldings
Namespace Prefix: | tfsa_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Amortized cost excluding accrued interest, after allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This is the result of the principal amount outstanding of total loans managed or securitized less securitized loans and loans that are in the process of being securitized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Subparagraph (a) -Paragraph 4 -SubTopic 20 -Topic 860 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481326/860-20-50-4 + Details
Name: | us-gaap_PrincipalAmountOutstandingOfLoansHeldInPortfolio
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | tfsa_InvestmentGeographicStateAxis=stpr_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=tfsa_GeographicLocationConcentrationRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByTypeAxis=tfsa_InvestmentOwnedAtCostMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | tfsa_InvestmentGeographicStateAxis=stpr_NY
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | tfsa_InvestmentGeographicStateAxis=stpr_UT
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | tfsa_InvestmentGeographicStateAxis=stpr_GA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | tfsa_InvestmentGeographicStateAxis=tfsa_TotalGeographicLocationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=tfsa_MixedUseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=tfsa_PropertyTypeConcentrationRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=srt_OfficeBuildingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=srt_MultifamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=tfsa_InfrastructureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=tfsa_StudentHousingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=tfsa_TotalPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_EquitySecuritiesInvestmentSummaryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_FirstMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=tfsa_MezzanineLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |