Note 13 - Segments - Capital Expenditures by Reportable Segment (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Capital expenditures and tenant improvements, office | $ 165,817 | $ 568,555 |
| Acquisition of operating properties, model home | (0) | 4,270,192 |
| Capital expenditures and tenant improvements | 66,807 | 360,708 |
| Total real estate investments | 66,807 | 4,630,900 |
| Office/Industrial Properties [Member] | Operating Segments [Member] | ||
| Capital expenditures and tenant improvements, office | 66,807 | 360,708 |
| Model Home Properties [Member] | Operating Segments [Member] | ||
| Acquisition of operating properties, model home | 0 | 4,270,192 |
| Retail Properties [Member] | Operating Segments [Member] | ||
| Capital expenditures and tenant improvements, office | 0 | 0 |
| Acquisition of operating properties, model home | $ 0 | $ 0 |