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SCHEDULE IV MORTGAGE LOANS ON REAL ESTATE - Number of commercial loan investments (Details) - USD ($) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Current Face Amount | $ 32,073 | $ 38,099 |  |
Commercial Loans and Investments | $ 31,908 | $ 39,095 | $ 38,320 | $ 34,625
Mortgage Note - 4311 Maple Avenue, Dallas, TX |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Coupon Rate | 7.50% |  |  |
Current Face Amount | $ 400 |  |  |
Commercial Loans and Investments | $ 395 |  |  |
Construction Loan - The Exchange At Gwinnett - Buford, GA |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Coupon Rate | 7.25% |  |  |
Current Face Amount | $ 220 |  |  |
Commercial Loans and Investments | $ 173 |  |  |
Preferred Investment - Watters Creek &ndash; Allen, TX [Member] |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Coupon Rate | 8.50% |  |  |
Current Face Amount | $ 30,000 |  |  |
Commercial Loans and Investments | $ 29,887 |  |  |
Improvement Loan - Ashford Lane &ndash; Atlanta, GA [Member] |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Coupon Rate | 12.00% |  |  |
Current Face Amount | $ 1,453 |  |  |
Commercial Loans and Investments | $ 1,453 |  |  |

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- Definition Amount of contractual principal due at origination of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Paragraph Column F -Subsection 29 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column F)) -URI https://asc.fasb.org/extlink&oid=120402547&loc=d3e617274-123014 + Details
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- Definition Interest rate of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Paragraph Column B -Subsection 29 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column B)) -URI https://asc.fasb.org/extlink&oid=120402547&loc=d3e617274-123014 + Details
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- Definition Amount of investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column G)) -URI https://asc.fasb.org/extlink&oid=120402547&loc=d3e617274-123014 + Details
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