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SCHEDULE IV - MORTGAGE LOANS - Schedule of Mortgage Loans (Details) - USD ($) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Prior Liens | $ 301,975 |  |  |
Face Amount | 136,607 |  |  |
Carrying Value | 136,607 | $ 130,626 | $ 143,087 | $ 114,893
Convertible loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Prior Liens | 205,046 |  |  |
Face Amount | 40,114 |  |  |
Carrying Value | $ 40,114 |  |  |
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 | $ 24,756 |  |  |
Face Amount | 2,486 |  |  |
Carrying Value | $ 2,486 |  |  |
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 | $ 18,070 |  |  |
Face Amount | 3,967 |  |  |
Carrying Value | $ 3,967 |  |  |
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 | $ 26,407 |  |  |
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 | $ 25,201 |  |  |
Face Amount | 3,700 |  |  |
Carrying Value | $ 3,700 |  |  |
Convertible loans | Parc at Opelika |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 10.00% |  |  |
Prior Liens | $ 23,661 |  |  |
Face Amount | 2,305 |  |  |
Carrying Value | $ 2,305 |  |  |
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 | $ 35,524 |  |  |
Face Amount | 7,830 |  |  |
Carrying Value | $ 7,830 |  |  |
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 | $ 17,105 |  |  |
Face Amount | 1,537 |  |  |
Carrying Value | $ 1,537 |  |  |
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 | $ 22,793 |  |  |
Face Amount | 5,319 |  |  |
Carrying Value | $ 5,319 |  |  |
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 | $ 11,529 |  |  |
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 | 22,348 |  |  |
Carrying Value | $ 22,348 |  |  |
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 | 4,554 |  |  |
Carrying Value | $ 4,554 |  |  |
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 | 96,929 |  |  |
Face Amount | 74,145 |  |  |
Carrying Value | $ 74,145 |  |  |
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 | 813 |  |  |
Carrying Value | $ 813 |  |  |
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 | $ 96,929 |  |  |
Face Amount | 24,053 |  |  |
Carrying Value | $ 24,053 |  |  |
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 | 183 |  |  |
Carrying Value | $ 183 |  |  |

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