Note 4 - Real Estate Assets - Summary of Properties Owned (Details) - USD ($) |
6 Months Ended | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
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| Real estate assets owned | $ 95,012,299 | $ 108,649,704 | ||||||||||||
| Genesis Plaza [Member] | ||||||||||||||
| Geographic location | [1] | San Diego, CA | ||||||||||||
| Real estate assets owned | [1] | $ 7,040,879 | 7,274,600 | |||||||||||
| Dakota Center [Member] | ||||||||||||||
| Geographic location | [2] | Fargo, ND | ||||||||||||
| Real estate assets owned | [2],[3] | $ 0 | 4,861,267 | |||||||||||
| Grand Pacific Center [Member] | ||||||||||||||
| Geographic location | [4] | Bismarck, ND | ||||||||||||
| Real estate assets owned | $ 7,862,567 | 8,082,202 | ||||||||||||
| Arapahoe Center [Member] | ||||||||||||||
| Geographic location | Centennial, CO | |||||||||||||
| Real estate assets owned | $ 8,654,592 | 8,874,198 | ||||||||||||
| West Fargo Industrial [Member] | ||||||||||||||
| Geographic location | Fargo, ND | |||||||||||||
| Real estate assets owned | $ 6,322,610 | 6,404,774 | ||||||||||||
| The 300 N.P [Member] | ||||||||||||||
| Geographic location | Fargo, ND | |||||||||||||
| Real estate assets owned | $ 1,892,226 | 1,949,040 | ||||||||||||
| One Park Centre [Member] | ||||||||||||||
| Geographic location | Westminster, CO | |||||||||||||
| Real estate assets owned | $ 5,541,909 | 5,740,065 | ||||||||||||
| Shea Center II [Member] | ||||||||||||||
| Geographic location | [4] | Highlands Ranch, CO | ||||||||||||
| Real estate assets owned | [4] | $ 13,154,014 | 16,249,498 | |||||||||||
| Mandolin [Member] | ||||||||||||||
| Geographic location | [5] | Houston, TX | ||||||||||||
| Real estate assets owned | [5] | $ 4,462,995 | 4,508,851 | |||||||||||
| Baltimore [Member] | ||||||||||||||
| Geographic location | Baltimore, MD | |||||||||||||
| Real estate assets owned | $ 7,904,393 | 8,016,747 | ||||||||||||
| Presidio Property Trust, Inc. Properties [Member] | ||||||||||||||
| Real estate assets owned | $ 62,836,185 | 71,961,242 | ||||||||||||
| Model Home Properties [Member] | ||||||||||||||
| Geographic location | [6] | AZ, TN, TX, AL | ||||||||||||
| Real estate assets owned | [6] | $ 32,176,114 | $ 36,688,462 | |||||||||||
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