SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) loan	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying amount of mortgages	$ 62,547	$ 73,543	$ 83,135
Loans receivable	62,360	73,260
SBA 7(a) loans receivable, Paycheck Protection Program
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Loans receivable	0	$ 5,050
Total reserves
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total reserves	(1,021)
Reserves	$ 1,021
SBA 7(a) Loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	193
Carrying amount of mortgages	$ 62,547
Principal amount of loans subject to delinquent principal or "interest"	104
Loans not secured by real estate	551
Federal income tax cost basis of mortgage loans (unaudited)	56,200
SBA 7(a) Loans | Government guaranteed portions
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying amount of mortgages	117
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]
Carrying amount of mortgages	5,979
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Total reserves
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total reserves	(1,106)
Principal amount of loans subject to delinquent principal or "interest"	0
Reserves	$ 1,106
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	21
Carrying amount of mortgages	$ 8,208
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	$ 60
Interest Rate	7.75%
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	$ 880
Interest Rate	9.00%
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	20
Carrying amount of mortgages	$ 6,553
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	$ 5
Interest Rate	7.75%
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	$ 860
Interest Rate	9.00%
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	12
Carrying amount of mortgages	$ 4,617
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	$ 90
Interest Rate	7.75%
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	$ 950
Interest Rate	9.00%
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
Carrying amount of mortgages	$ 4,075
Principal amount of loans subject to delinquent principal or "interest"	0
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	$ 80
Interest Rate	7.75%
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	$ 950
Interest Rate	9.00%
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
Carrying amount of mortgages	$ 3,942
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	$ 20
Interest Rate	8.00%
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	$ 1,040
Interest Rate	9.00%
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
Carrying amount of mortgages	$ 2,421
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	7.75%
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	$ 860
Interest Rate	9.00%
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	7
Carrying amount of mortgages	$ 2,158
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	8.00%
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	$ 580
Interest Rate	9.00%
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
Carrying amount of mortgages	$ 2,016
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	$ 300
Interest Rate	8.00%
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	$ 670
Interest Rate	9.00%
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	$ 85
Interest Rate	6.00%
Total reserves	$ (85)
Reserves	$ 85
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	9
Carrying amount of mortgages	$ 1,963
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	$ 5
Interest Rate	8.00%
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	$ 440
Interest Rate	9.00%
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	11
Carrying amount of mortgages	$ 1,876
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	8.00%
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	$ 290
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
Carrying amount of mortgages	$ 1,793
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	$ 60
Interest Rate	8.00%
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	$ 770
Interest Rate	9.00%
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	5
Carrying amount of mortgages	$ 1,689
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	7.75%
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	$ 760
Interest Rate	9.00%
SBA 7(a) Loans | Virginia
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	5
Carrying amount of mortgages	$ 1,497
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Virginia | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 110
Interest Rate	8.00%
SBA 7(a) Loans | Virginia | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 640
Interest Rate	8.75%
SBA 7(a) Loans | Alabama
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	7
Carrying amount of mortgages	$ 1,427
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Alabama | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 20
Interest Rate	8.00%
SBA 7(a) Loans | Alabama | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 470
Interest Rate	8.75%
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	6
Carrying amount of mortgages	$ 1,347
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	$ 110
Interest Rate	8.25%
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	9.00%
SBA 7(a) Loans | South Carolina
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	4
Carrying amount of mortgages	$ 1,284
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | South Carolina | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 270
Interest Rate	8.00%
SBA 7(a) Loans | South Carolina | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 380
Interest Rate	9.00%
SBA 7(a) Loans | Tennessee
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	4
Carrying amount of mortgages	$ 1,226
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Tennessee | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 140
Interest Rate	8.50%
SBA 7(a) Loans | Tennessee | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 440
Interest Rate	8.75%
SBA 7(a) Loans | Wisconsin
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans | loan	5
Carrying amount of mortgages	$ 1,167
Principal amount of loans subject to delinquent principal or "interest"	0
SBA 7(a) Loans | Wisconsin | Minimum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 100
Interest Rate	8.00%
SBA 7(a) Loans | Wisconsin | Maximum
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 500
Interest Rate	9.00%
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	3
Carrying amount of mortgages	$ 1,154
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	$ 310
Interest Rate	7.75%
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	$ 510
Interest Rate	8.50%
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	31
Carrying amount of mortgages	$ 7,144
Principal amount of loans subject to delinquent principal or "interest"	104
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	$ 30
Interest Rate	6.00%
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	$ 520
Interest Rate	9.00%