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SCHEDULE IV - MORTGAGE LOANS - Schedule of Mortgage Loans (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] |  |  |  |
Prior Liens | $ 254,579 |  |  |
Face Amount | 139,609 |  |  |
Carrying Value | 139,609 | $ 136,607 | $ 130,626 | $ 143,087
Convertible loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Prior Liens | 201,540 |  |  |
Face Amount | 40,954 |  |  |
Carrying Value | $ 40,954 |  |  |
Convertible loans | Autumn Breeze |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.00% |  |  |
Prior Liens | $ 24,474 |  |  |
Face Amount | 2,326 |  |  |
Carrying Value | $ 2,326 |  |  |
Convertible loans | Bellwether Ridge |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.00% |  |  |
Prior Liens | $ 17,843 |  |  |
Face Amount | 3,798 |  |  |
Carrying Value | $ 3,798 |  |  |
Convertible loans | Forest Pines |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.00% |  |  |
Prior Liens | $ 26,060 |  |  |
Face Amount | 6,472 |  |  |
Carrying Value | $ 6,472 |  |  |
Convertible loans | Parc at Ingleside |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.00% |  |  |
Prior Liens | $ 24,815 |  |  |
Face Amount | 3,759 |  |  |
Carrying Value | $ 3,759 |  |  |
Convertible loans | Parc at Opelika Phase II |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 10.00% |  |  |
Prior Liens | $ 21,904 |  |  |
Face Amount | 3,190 |  |  |
Carrying Value | $ 3,190 |  |  |
Convertible loans | Parc at Windmill Farms |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.00% |  |  |
Prior Liens | $ 35,112 |  |  |
Face Amount | 7,886 |  |  |
Carrying Value | $ 7,886 |  |  |
Convertible loans | Plum Tree |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.00% |  |  |
Prior Liens | $ 17,525 |  |  |
Face Amount | 1,767 |  |  |
Carrying Value | $ 1,767 |  |  |
Convertible loans | Spyglass of Ennis |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.00% |  |  |
Prior Liens | $ 22,509 |  |  |
Face Amount | 5,258 |  |  |
Carrying Value | $ 5,258 |  |  |
Convertible loans | Steeple Crest |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.00% |  |  |
Prior Liens | $ 11,298 |  |  |
Face Amount | 6,498 |  |  |
Carrying Value | 6,498 |  |  |
Land loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Prior Liens | 0 |  |  |
Face Amount | 21,720 |  |  |
Carrying Value | $ 21,720 |  |  |
Land loans | ABC Land and Development, Inc. |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 9.50% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 4,408 |  |  |
Carrying Value | $ 4,408 |  |  |
Land loans | ABC Paradise, LLC |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 9.50% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 1,210 |  |  |
Carrying Value | $ 1,210 |  |  |
Land loans | Lake Wales |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 9.50% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 3,000 |  |  |
Carrying Value | $ 3,000 |  |  |
Land loans | Legacy Pleasant Grove |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 12.00% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 496 |  |  |
Carrying Value | $ 496 |  |  |
Land loans | McKinney Ranch |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 6.00% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 3,926 |  |  |
Carrying Value | $ 3,926 |  |  |
Land loans | One Realco Land Holding, Inc. |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 9.50% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 1,728 |  |  |
Carrying Value | $ 1,728 |  |  |
Land loans | Riverview on the Park Land, LLC |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 9.50% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 1,045 |  |  |
Carrying Value | $ 1,045 |  |  |
Land loans | Spartan Land |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 12.00% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 5,907 |  |  |
Carrying Value | 5,907 |  |  |
Subsidized housing |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Prior Liens | 53,039 |  |  |
Face Amount | 76,935 |  |  |
Carrying Value | $ 76,935 |  |  |
Subsidized housing | Phillips Foundation for Better Living, Inc. |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 12.00% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 182 |  |  |
Carrying Value | $ 182 |  |  |
Subsidized housing | Unified Housing Foundation., Maturing July 31, 2021 |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 12.00% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 2,881 |  |  |
Carrying Value | $ 2,881 |  |  |
Subsidized housing | Unified Housing Foundation., Maturing August 30, 2021 |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 12.00% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 212 |  |  |
Carrying Value | $ 212 |  |  |
Subsidized housing | Unified Housing Foundation., Maturing October 31, 2021 |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 12.00% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 6,831 |  |  |
Carrying Value | $ 6,831 |  |  |
Subsidized housing | Unified Housing Foundation.., Maturing December 31, 2021 |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 12.00% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 10,401 |  |  |
Carrying Value | $ 10,401 |  |  |
Subsidized housing | Unified Housing Foundation., Maturing March 31, 2022 |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 12.00% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 10,096 |  |  |
Carrying Value | $ 10,096 |  |  |
Subsidized housing | Unified Housing Foundation., Maturing March 31, 2023 |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 12.00% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 6,990 |  |  |
Carrying Value | $ 6,990 |  |  |
Subsidized housing | Unified Housing Foundation., Maturing May 31, 2023 |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 12.00% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 3,615 |  |  |
Carrying Value | $ 3,615 |  |  |
Subsidized housing | Unified Housing Foundation., Maturing December 31, 2032 |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 12.00% |  |  |
Prior Liens | $ 53,039 |  |  |
Face Amount | 27,477 |  |  |
Carrying Value | $ 27,477 |  |  |
Subsidized housing | Unified Housing Foundation., Maturing March 31, 2024 |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 12.00% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 6,521 |  |  |
Carrying Value | $ 6,521 |  |  |
Subsidized housing | Unified Housing Foundation., Maturing April 30, 2024 |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 12.00% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 1,549 |  |  |
Carrying Value | $ 1,549 |  |  |
Subsidized housing | Unified Housing Foundation., Maturing June 30, 2024 |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 12.00% |  |  |
Prior Liens | $ 0 |  |  |
Face Amount | 180 |  |  |
Carrying Value | $ 180 |  |  |

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