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Note 13 - Segments - Assets by Reportable Segment (Details) - USD ($) | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Land, buildings and improvements, net |  | $ 127,596,500 | $ 144,155,784
Total assets |  | 142,569,650 | 175,962,638
Cash, cash equivalents and restricted cash |  | 8,036,496 | 6,510,428
Other assets, net |  | 14,973,150 | 31,806,854
Operating Segments [Member] |  |  |
Total assets |  | 131,133,231 | 146,136,063
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member] |  |  |
Cash, cash equivalents and restricted cash |  | 564,922 | 277,143
Other assets, net |  | 10,871,497 | 29,549,432
Office/Industrial Properties [Member] | Operating Segments [Member] |  |  |
Land, buildings and improvements, net | [1] | 74,425,180 | 77,472,724
Total assets | [2] | 76,292,662 | 78,140,372
Model Home Properties [Member] | Operating Segments [Member] |  |  |
Land, buildings and improvements, net | [1] | 37,416,000 | 50,790,147
Total assets | [2] | 38,166,964 | 51,456,292
Retail Properties [Member] | Operating Segments [Member] |  |  |
Land, buildings and improvements, net | [1] | 15,743,789 | 15,877,190
Total assets | [2] | $ 16,673,605 | $ 16,539,399
[1] | Includes lease intangibles and the land purchase option related to property acquisitions.
[2] | Includes land, buildings and improvements, cash, cash equivalents, and restricted cash, current receivables, deferred rent receivables and deferred leasing costs and other related intangible assets, all shown on a net basis.

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