v3.26.1
Loans - Matured Loans, Principal by LTV and Lien Position (Details) - Matured Loans [Member]
$ in Thousands
Jun. 30, 2026
USD ($)
 [1]
Financing Receivable, Credit Quality Indicator [Line Items]  
Principal $ 17,633
Percent 33.00% [2]
First Trust Deeds [Member]  
Financing Receivable, Credit Quality Indicator [Line Items]  
Principal $ 15,783
Percent 29.60% [2]
Second Trust Deeds [Member]  
Financing Receivable, Credit Quality Indicator [Line Items]  
Principal $ 1,850
Percent 3.40% [2]
60-69% [Member]  
Financing Receivable, Credit Quality Indicator [Line Items]  
Principal $ 15,410
Percent 28.90% [2]
60-69% [Member] | First Trust Deeds [Member]  
Financing Receivable, Credit Quality Indicator [Line Items]  
Principal $ 14,160
Percent 26.60% [2]
60-69% [Member] | Second Trust Deeds [Member]  
Financing Receivable, Credit Quality Indicator [Line Items]  
Principal $ 1,250
Percent 2.30% [2]
70-79% [Member]  
Financing Receivable, Credit Quality Indicator [Line Items]  
Principal $ 2,223
Percent 4.10% [2]
70-79% [Member] | First Trust Deeds [Member]  
Financing Receivable, Credit Quality Indicator [Line Items]  
Principal $ 1,623
Percent 3.00% [2]
70-79% [Member] | Second Trust Deeds [Member]  
Financing Receivable, Credit Quality Indicator [Line Items]  
Principal $ 600
Percent 1.10% [2]
Subtotal less than 80% [Member]  
Financing Receivable, Credit Quality Indicator [Line Items]  
Principal $ 17,633
Percent 33.00% [2]
Subtotal less than 80% [Member] | First Trust Deeds [Member]  
Financing Receivable, Credit Quality Indicator [Line Items]  
Principal $ 15,783
Percent 29.60% [2]
Subtotal less than 80% [Member] | Second Trust Deeds [Member]  
Financing Receivable, Credit Quality Indicator [Line Items]  
Principal $ 1,850
Percent 3.40% [2]
More than or equal to 80% [Member]  
Financing Receivable, Credit Quality Indicator [Line Items]  
Percent 0.00% [2]
More than or equal to 80% [Member] | First Trust Deeds [Member]  
Financing Receivable, Credit Quality Indicator [Line Items]  
Percent 0.00% [2]
More than or equal to 80% [Member] | Second Trust Deeds [Member]  
Financing Receivable, Credit Quality Indicator [Line Items]  
Percent 0.00% [2]
[1] LTV classifications in the table above are based on principal, advances and interest unpaid at June 30, 2026.
[2] Percent of total principal of secured loans (totaling $53.3 million) at June 30, 2026.