Notes Receivable (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 123,678	$ 128,229
Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	123,678	128,229
ABC Land and Development, Inc. | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 4,408	4,408
Interest Rate	9.50%
ABC Paradise, LLC | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 1,210	1,210
Interest Rate	9.50%
Autumn Breeze | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 1,043	1,451
Interest Rate	5.00%
Ownership interest if note converted	100.00%
Bellwether Ridge | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 3,798	3,798
Interest Rate	5.00%
Ownership interest if note converted	100.00%
Dominion at Mercer Crossing | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 6,167	6,167
Interest Rate	8.25%
Interest rate	1.00%
Forest Pines | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 6,472	6,472
Interest Rate	5.00%
Ownership interest if note converted	100.00%
Inwood on the Park | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 19,985	20,208
Interest Rate	4.45%
Kensington Park | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 5,196	6,994
Interest Rate	4.45%
Lake Shore Villas | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 4,852	5,855
Interest Rate	4.45%
Prospectus Endeavors | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 496	496
Interest Rate	6.00%
McKinney Ranch | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 3,926	3,926
Interest Rate	6.00%
Ocean Estates II | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 3,591	3,615
Interest Rate	4.45%
One Realco Land Holding, Inc. | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 1,728	1,728
Interest Rate	9.50%
Parc at Ingleside | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 3,759	3,759
Interest Rate	5.00%
Ownership interest if note converted	100.00%
Parc at Opelika Phase II | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 3,190	3,190
Interest Rate	10.00%
Ownership interest if note converted	100.00%
Parc at Windmill Farms | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 7,886	7,886
Interest Rate	5.00%
Ownership interest if note converted	100.00%
Phillips Foundation For Better Living Inc. | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 0	107
Plaza at Chase Oaks | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 11,303	11,772
Interest Rate	4.45%
Plum Tree | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 1,240	1,478
Interest Rate	5.00%
Ownership interest if note converted	100.00%
Polk County Land | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 3,000	3,000
Interest Rate	9.50%
Riverview on the Park Land, LLC | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 1,045	1,045
Interest Rate	9.50%
Spartan Land | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 5,907	5,907
Interest Rate	6.00%
Spyglass of Ennis | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 4,705	4,705
Interest Rate	5.00%
Ownership interest if note converted	100.00%
Steeple Crest | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 6,230	6,358
Interest Rate	5.00%
Ownership interest if note converted	100.00%
Timbers at The Park | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 11,072	11,146
Interest Rate	4.45%
Tuscany Villas | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Carrying value	$ 1,469	$ 1,548
Interest Rate	4.45%