SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) loan	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Cumulative adjustment	$ 57,005	$ 62,547	$ 73,543
SBA 7(a) Loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	169
Cumulative adjustment	$ 57,005
Principal amount of loans subject to delinquent principal or "interest"	198
Loans not secured by real estate	724
Federal income tax cost basis of mortgage loans (unaudited)	54,500
SBA 7(a) Loans | General Reserves
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Current expected credit losses	(1,680)
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Government guaranteed portions
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Cumulative adjustment	74
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | SBA 7(a) loans receivable, subject to secured borrowings
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Cumulative adjustment	3,007
Principal amount of loans subject to delinquent principal or "interest"	$ 0
SBA 7(a) Loans | Ohio
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	16
Cumulative adjustment	$ 7,876
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Ohio | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 100
Interest Rate	9.75%
SBA 7(a) Loans | Ohio | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 800
Interest Rate	11.25%
SBA 7(a) Loans | Texas
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	19
Cumulative adjustment	$ 7,140
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Texas | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 20
Interest Rate	9.50%
SBA 7(a) Loans | Texas | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 850
Interest Rate	11.25%
SBA 7(a) Loans | Michigan
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	14
Cumulative adjustment	$ 4,044
Principal amount of loans subject to delinquent principal or "interest"	198
SBA 7(a) Loans | Michigan | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 20
Interest Rate	9.00%
SBA 7(a) Loans | Michigan | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 940
Interest Rate	11.25%
SBA 7(a) Loans | Florida
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	11
Cumulative adjustment	$ 3,957
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Florida | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 30
Interest Rate	10.50%
SBA 7(a) Loans | Florida | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 1,030
Interest Rate	11.25%
SBA 7(a) Loans | Indiana
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	7
Cumulative adjustment	$ 2,770
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Indiana | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 80
Interest Rate	10.00%
SBA 7(a) Loans | Indiana | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 930
Interest Rate	11.25%
SBA 7(a) Loans | Louisiana
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	6
Cumulative adjustment	$ 2,408
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Louisiana | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 60
Interest Rate	9.50%
SBA 7(a) Loans | Louisiana | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 960
Interest Rate	11.25%
SBA 7(a) Loans | West Virginia
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	7
Cumulative adjustment	$ 2,400
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | West Virginia | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 50
Interest Rate	10.00%
SBA 7(a) Loans | West Virginia | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 850
Interest Rate	11.25%
SBA 7(a) Loans | Kentucky
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	7
Cumulative adjustment	$ 1,893
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Kentucky | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 60
Interest Rate	10.25%
SBA 7(a) Loans | Kentucky | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 430
Interest Rate	11.25%
SBA 7(a) Loans | Pennsylvania
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	4
Cumulative adjustment	$ 1,810
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Pennsylvania | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 290
Interest Rate	10.25%
SBA 7(a) Loans | Pennsylvania | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 660
Interest Rate	11.25%
SBA 7(a) Loans | Pennsylvania | Mortgage Loans - $284,000
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 172
Interest Rate	9.00%
SBA 7(a) Loans | North Carolina
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	7
Cumulative adjustment	$ 1,771
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | North Carolina | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 50
Interest Rate	10.25%
SBA 7(a) Loans | North Carolina | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 760
Interest Rate	11.25%
SBA 7(a) Loans | Illinois
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	9
Cumulative adjustment	$ 1,564
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Illinois | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 50
Interest Rate	10.25%
SBA 7(a) Loans | Illinois | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 280
Interest Rate	11.25%
SBA 7(a) Loans | New York
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	4
Cumulative adjustment	$ 1,472
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | New York | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 190
Interest Rate	10.50%
SBA 7(a) Loans | New York | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 700
Interest Rate	11.25%
SBA 7(a) Loans | Washington
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	2
Cumulative adjustment	$ 1,435
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Washington | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 300
Interest Rate	10.00%
SBA 7(a) Loans | Washington | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 1,140
Interest Rate	10.75%
SBA 7(a) Loans | Colorado
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	4
Cumulative adjustment	$ 1,406
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Colorado | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 260
Interest Rate	10.00%
SBA 7(a) Loans | Colorado | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 500
Interest Rate	10.75%
SBA 7(a) Loans | Montana
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	4
Cumulative adjustment	$ 1,365
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Montana | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 150
Interest Rate	9.50%
SBA 7(a) Loans | Montana | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 470
Interest Rate	11.00%
SBA 7(a) Loans | New Mexico
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	4
Cumulative adjustment	$ 1,329
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | New Mexico | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 90
Interest Rate	9.50%
SBA 7(a) Loans | New Mexico | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 750
Interest Rate	11.25%
SBA 7(a) Loans | Georgia
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	5
Cumulative adjustment	$ 1,133
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Georgia | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 100
Interest Rate	10.50%
SBA 7(a) Loans | Georgia | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 320
Interest Rate	11.25%
SBA 7(a) Loans | Other
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	39
Cumulative adjustment	$ 9,831
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Other | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 20
Interest Rate	9.50%
SBA 7(a) Loans | Other | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 850
Interest Rate	11.25%