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Note 4 - Real Estate Assets - Summary of Properties Owned (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
Real estate assets owned |  | $ 138,064,936 |  | $ 166,253,967
Garden Gateway Plaza [Member] |  |  |  |
Geographic location | [1] | Colorado Springs, CO |  |
Real estate assets owned | [1] | $ 0 |  | 11,464,531
World Plaza [Member] |  |  |  |
Geographic location | [2] | San Bernardino, CA |  |
Real estate assets owned | [2] | $ 9,272,213 |  | 9,272,213
Executive Office Park [Member] |  |  |  |
Geographic location | [1] | Colorado Springs, CO |  |
Real estate assets owned | [1] | $ 0 |  | 5,105,831
Waterman Plaza [Member] |  |  |  |
Geographic location | [1] | San Bernardino, CA |  |
Real estate assets owned | [1] | $ 0 |  | 3,500,002
Genesis Plaza [Member] |  |  |  |
Geographic location | [3] | San Diego, CA |  |
Real estate assets owned | [3] | $ 8,310,803 |  | 8,651,177
Dakota Center [Member] |  |  |  |
Geographic location |  | Fargo, ND |  |
Real estate assets owned |  | $ 8,607,360 |  | 8,597,493
Grand Pacific Center [Member] |  |  |  |
Geographic location | [4] | Bismarck, ND |  |
Real estate assets owned |  | $ 5,457,447 | [4] | 5,683,823
Arapahoe Center [Member] |  |  |  |
Geographic location |  | Centennial, CO |  |
Real estate assets owned |  | $ 8,821,278 |  | 9,233,078
Union Town Center [Member] |  |  |  |
Geographic location |  | Colorado Springs, CO |  |
Real estate assets owned |  | $ 9,169,387 |  | 9,344,563
West Fargo Industrial [Member] |  |  |  |
Geographic location |  | Fargo, ND |  |
Real estate assets owned |  | $ 7,025,325 |  | 7,061,122
The 300 N.P [Member] |  |  |  |
Geographic location |  | Fargo, ND |  |
Real estate assets owned |  | $ 2,929,563 |  | 3,279,522
Research Parkway [Member] |  |  |  |
Geographic location |  | Colorado Springs, CO |  |
Real estate assets owned |  | $ 2,375,943 |  | 2,438,594
One Park Centre [Member] |  |  |  |
Geographic location |  | Westminster, CO |  |
Real estate assets owned |  | $ 7,992,420 |  | 8,586,309
Highland Court [Member] |  |  |  |
Geographic location | [1],[5] | Centennial, CO |  |
Real estate assets owned | [1],[5] | $ 0 |  | 10,500,001
Shea Center II [Member] |  |  |  |
Geographic location |  | Highlands Ranch, CO |  |
Real estate assets owned |  | $ 20,246,645 |  | 21,026,112
Mandolin [Member] |  |  |  |
Geographic location | [5] | Houston, TX |  |
Real estate assets owned | [5] | $ 4,875,696 |  | 0
Baltimore [Member] |  |  |  |
Geographic location |  | Baltimore, MD |  |
Real estate assets owned |  | $ 8,891,810 |  | 0
Presidio Property Trust, Inc. Properties [Member] |  |  |  |
Real estate assets owned |  | $ 103,975,890 |  | 123,744,371
Model Home Properties [Member] |  |  |  |
Geographic location | [6] | AZ, FL, IL, PA, TX, WI |  |
Real estate assets owned | [6] | $ 34,089,046 |  | $ 42,509,596
[1] | This property was sold during the year ended December 31, 2021.
[2] | This property is held for sale as of December 31, 2021.
[3] | Genesis Plaza is owned by two tenants-in-common, each of which own 57% and 43%, respectively, and we beneficially own an aggregate of 76.4%, based on our ownership percentages of each tenant-in-common.
[4] | Property was listed as held for sale in February 2022.
[5] | A portion of the proceeds from the sale of Highland Court were used in like-kind exchange transactions pursued under Section 1031 of the Code for the acquisition of our Mandolin property. Mandolin is owned by NetREIT Palm Self-Storage LP, through its wholly owned subsidiary NetREIT Highland LLC, and the Company is the sole general partner and owns 61.3% of NetREIT Palm Self-Storage LP.
[6] | Includes five Model Homes listed as held for sale as of December 31, 2021.

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