Mortgages and Other Notes Payable - Schedule of Debt (Details) - USD ($) $ in Thousands	Jul. 10, 2024	Jun. 30, 2024	Feb. 08, 2024	Dec. 31, 2023
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 180,958		$ 182,683
Mortgages and Other Notes Payable | Subsequent Event
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	1.85%
Loan on property	$ 6,558
Mortgages and Other Notes Payable | 770 South Post Oak
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 11,064		11,187
Interest Rate		4.40%
Mortgages and Other Notes Payable | Blue Lake Villas
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 9,415		9,503
Interest Rate		3.15%
Mortgages and Other Notes Payable | Blue Lake Villas Phase II
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 3,310		3,349
Interest Rate		2.85%
Mortgages and Other Notes Payable | Chelsea
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 7,973		8,064
Interest Rate		3.40%
Mortgages and Other Notes Payable | EQK Portage
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 3,350		3,350
Interest Rate		10.00%
Mortgages and Other Notes Payable | Forest Grove
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 6,890		6,988
Interest Rate		3.75%
Mortgages and Other Notes Payable | Landing on Bayou Cane
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 14,303		14,442
Interest Rate		3.50%
Mortgages and Other Notes Payable | Legacy at Pleasant Grove
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 12,550		12,716
Interest Rate		3.60%
Mortgages and Other Notes Payable | New Concept Energy
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 3,542		3,542
Interest Rate		5.34%
Mortgages and Other Notes Payable | Northside on Travis
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 11,260		11,394
Interest Rate		2.50%
Mortgages and Other Notes Payable | Parc at Denham Springs
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 16,225		16,399
Interest Rate		3.75%
Mortgages and Other Notes Payable | Parc at Denham Springs Phase II
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 15,515		15,608
Interest Rate		4.05%
Mortgages and Other Notes Payable | RCM HC Enterprises
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 5,086		5,086
Interest Rate		5.00%
Mortgages and Other Notes Payable | Residences at Holland Lake
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 10,322		10,424
Interest Rate		3.60%
Mortgages and Other Notes Payable | Villas at Bon Secour
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 19,003		19,205
Interest Rate		3.08%
Mortgages and Other Notes Payable | Villas of Park West I
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 9,083		9,181
Interest Rate		3.04%
Mortgages and Other Notes Payable | Villas of Park West II
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 8,246		8,334
Interest Rate		3.18%
Mortgages and Other Notes Payable | Vista Ridge
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 9,428		9,512
Interest Rate		4.00%
Mortgages and Other Notes Payable | Windmill Farms
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying Value		$ 4,393		$ 4,399
Interest Rate		7.50%	7.50%