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Note 12 - Segments - Capital Expenditures by Reportable Segment (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Capital expenditures and tenant improvements, office | $ 6,663,116 | $ 2,107,505
Acquisition of operating properties, model home | 21,909,963 | 15,673,575
Total real estate investments | 28,573,079 | 17,781,080
Operating Segments [Member] |  |
Capital expenditures and tenant improvements, office | 6,663,116 | 2,107,505
Office/Industrial Properties [Member] |  |
Capital expenditures and tenant improvements, office | 6,512,594 | 1,994,371
Acquisition of operating properties, model home | 21,909,963 | 15,673,575
Retail Properties [Member] |  |
Capital expenditures and tenant improvements, office | 150,522 | 113,134
Model Home [Member] |  |
Acquisition of operating properties, model home | $ 21,909,963 | $ 15,673,575

X
- Definition The amount of real estate acquisitions and improvements. + References No definition available. + Details
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Namespace Prefix: | sqft_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of cash outflow for the allowance granted to lessee and/or direct costs incurred by lessor used to prepare the leased premises for tenant's occupancy. + References No definition available. + Details
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X
- Definition The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 13 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-13 + Details
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- Details
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- Details
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- Details
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Period Type: |

X
- Details
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Period Type: |