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Note 4 - Real Estate Assets (Details Textual) | 12 Months Ended
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Dec. 31, 2021 ft² | Dec. 31, 2016
Number of States Real Estate Property is Located | 4 |
Number of Limited Partnerships in which Company is Sole General Partner |  | 1
Number of Limited Liability Companies | 2 | 5
NetREIT Palm Self-Storage LP [Member] |  |
Noncontrolling Interest, Ownership Percentage by Parent | 61.30% |
Office/Industrial Properties [Member] |  |
Area of Real Estate Property (Square Foot) | 757,578 |
Genesis Plaza [Member] |  |
Real Estate Property, Number of Tenants-in-common Owning the Property | 2 |
Percentage Beneficial Ownership in Property | 76.40% |
Genesis Plaza [Member] | Tenant-in-common One [Member] |  |
Percentage Ownership in Property | 57.00% |
Genesis Plaza [Member] | Tenant-in-common Two [Member] |  |
Percentage Ownership in Property | 43.00% |
Office/Industrial Properties [Member] | Industrial Buildings [Member] |  |
Number of Real Estate Properties | 1 |
Office/Industrial Properties [Member] | Office Buildings [Member] |  |
Number of Real Estate Properties | 8 |
Retail Properties [Member] |  |
Number of Real Estate Properties | 4 |
Area of Real Estate Property (Square Foot) | 121,052 |
Model Home [Member] |  |
Number of Real Estate Properties | 92 |
Number of Limited Partnerships in which Company is Sole General Partner | 6 |
Number of Limited Liability Companies | 1 |
Lessor, Operating Lease, Term of Contract (Month) | 18 months |
Lessor, Operating Lease, Option to Extend, Incremental Terms (Month) | 6 months |
NORTH DAKOTA |  |
Number of Real Estate Properties | 4 |

X
- Definition Term of lessor's operating lease option to extend. + References No definition available. + Details
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X
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X
- Definition Represents the number of limited partnerships in which the Company is the sole general partner. + References No definition available. + Details
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X
- Definition The number of states in which real estate property is located. + References No definition available. + Details
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X
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X
- Definition Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=124258985&loc=SL77919359-209981 + Details
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X
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