| Schedule of Real Estate Properties [Table Text Block] |
| | | Date | | | | Real estate assets and lease intangibles, net | |
| Property Name | | Acquired | | Location | | June 30, 2026 | | | December 31, 2025 | |
| Genesis Plaza (1) | | August 2010 | | San Diego, CA | | $ | 7,040,879 | | | $ | 7,274,600 | |
| Dakota Center (2) | | May 2011 | | Fargo, ND | | | — | | | | 4,861,267 | |
| Grand Pacific Center | | March 2014 | | Bismarck, ND | | | 7,862,567 | | | | 8,082,202 | |
| Arapahoe Center | | December 2014 | | Centennial, CO | | | 8,654,592 | | | | 8,874,198 | |
| West Fargo Industrial | | August 2015 | | Fargo, ND | | | 6,322,610 | | | | 6,404,774 | |
| 300 N.P. | | August 2015 | | Fargo, ND | | | 1,892,226 | | | | 1,949,040 | |
| One Park Center | | August 2015 | | Westminster, CO | | | 5,541,909 | | | | 5,740,065 | |
| Shea Center II (3) | | December 2015 | | Highlands Ranch, CO | | | 13,154,014 | | | | 16,249,498 | |
| Mandolin (4) | | August 2021 | | Houston, TX | | | 4,462,995 | | | | 4,508,851 | |
| Baltimore | | December 2021 | | Baltimore, MD | | | 7,904,393 | | | | 8,016,747 | |
| Commercial properties | | | | | | | | 62,836,185 | | | | 71,961,242 | |
| Model Home properties (5) | | 2019 - 2025 | | AZ, TN, TX, AL | | | 32,176,114 | | | | 36,688,462 | |
| Total real estate assets and lease intangibles, net | | | | | | | $ | 95,012,299 | | | $ | 108,649,704 | |
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