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Mortgages and Other Notes Payable - Schedule of Debt (Details) - USD ($) $ in Thousands | Feb. 08, 2024 | Dec. 31, 2023 | Feb. 28, 2023 | Dec. 31, 2022
--- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 182,683 |  | $ 188,004
770 South Post Oak |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 11,187 |  | 11,406
Interest Rate |  | 4.40% |  |
Athens |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 0 |  | 1,155
Interest Rate |  | 4.00% |  |
Blue Lake Villas |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 9,503 |  | 9,673
Interest Rate |  | 3.15% |  |
Blue Lake Villas Phase II |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 3,349 |  | 3,424
Interest Rate |  | 2.85% |  |
Chelsea |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 8,064 |  | 7,875
Interest Rate |  | 3.40% |  |
EQK Portage |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 3,350 |  | 3,350
Interest Rate |  | 10.00% |  |
Forest Grove |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 6,988 |  | 7,128
Interest Rate |  | 3.75% |  |
Landing on Bayou Cane |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 14,442 |  | 14,161
Interest Rate |  | 3.50% |  |
Legacy at Pleasant Grove |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 12,716 |  | 13,039
Interest Rate |  | 3.60% |  |
New Concept Energy |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 3,542 |  | 3,542
Interest Rate |  | 6.00% |  |
Northside on Travis |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 11,394 |  | 11,656
Interest Rate |  | 2.50% |  |
Parc at Denham Springs |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 16,399 |  | 16,737
Interest Rate |  | 3.75% |  |
Parc at Denham Springs Phase II |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 15,608 |  | 15,789
Interest Rate |  | 4.05% |  |
RCM HC Enterprises |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 5,086 |  | 5,086
Interest Rate |  | 5.00% |  |
Residences at Holland Lake |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 10,424 |  | 10,622
Interest Rate |  | 3.60% |  |
Villas at Bon Secour |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 19,205 |  | 19,410
Interest Rate |  | 3.08% |  |
Villas of Park West I |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 9,181 |  | 9,373
Interest Rate |  | 3.04% |  |
Villas of Park West II |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 8,334 |  | 8,504
Interest Rate |  | 3.18% |  |
Vista Ridge |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 9,512 |  | 9,674
Interest Rate |  | 4.00% |  |
Windmill Farms |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgages and other notes payable |  | $ 4,399 |  | $ 6,400
Interest Rate |  | 7.75% |  |
Windmill Farms | Mortgages |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Interest Rate |  |  | 7.75% |
Windmill Farms | Mortgages | Subsequent Event |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Interest Rate | 7.50% |  |  |

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