XML 41 R31.htm IDEA: XBRL DOCUMENT
v3.21.1

Note 4 - Real Estate Assets - Summary of Properties Owned (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020
Real estate assets owned |  | $ 145,348 |  |
World Plaza [Member] |  |  |  |
Geographic location | [1] | San Bernardino, California |  |
Real estate assets owned | [1] | $ 9,272 |  |
Executive Office Park [Member] |  |  |  |
Geographic location | [1] | Colorado Springs, Colorado |  |
Real estate assets owned | [1] | $ 5,116 |  |
Genesis Plaza [Member] |  |  |  |
Geographic location |  | San Diego, California |  |
Real estate assets owned |  | $ 8,472 |  |
Dakota Center [Member] |  |  |  |
Geographic location |  | Fargo, North Dakota |  |
Real estate assets owned |  | $ 8,540 |  |
Grand Pacific Center [Member] |  |  |  |
Geographic location |  | Bismarck, North Dakota |  |
Real estate assets owned |  | $ 5,615 |  |
Arapahoe Center [Member] |  |  |  |
Geographic location |  | Centennial, Colorado |  |
Real estate assets owned |  | $ 9,077 |  |
Union Town Center [Member] |  |  |  |
Geographic location |  | Colorado Springs, Colorado |  |
Real estate assets owned |  | $ 9,276 |  |
West Fargo Industrial [Member] |  |  |  |
Geographic location |  | Fargo, North Dakota |  |
Real estate assets owned |  | $ 7,013 |  |
The 300 N.P [Member] |  |  |  |
Geographic location |  | Fargo, North Dakota |  |
Real estate assets owned |  | $ 3,278 |  |
Research Parkway [Member] |  |  |  |
Geographic location |  | Colorado Springs, Colorado |  |
Real estate assets owned |  | $ 2,423 |  |
One Park Centre [Member] |  |  |  |
Geographic location |  | Westminster, Colorado |  |
Real estate assets owned |  | $ 8,444 |  |
Highland Court [Member] |  |  |  |
Geographic location | [1] | Centennial, Colorado |  |
Real estate assets owned |  | $ 10,218 | [1] | $ 10,500
Shea Center II [Member] |  |  |  |
Geographic location |  | Highlands Ranch, Colorado |  |
Real estate assets owned |  | $ 20,715 |  |
Presidio Property Trust, Inc. Properties [Member] |  |  |  |
Real estate assets owned |  | 107,459 |  |
Model Home Properties [Member] |  |  |  |
Real estate assets owned | [2] | $ 37,889 |  |
[1] | This property is held for sale as of March 31, 2021.
[2] | Includes 16 Model Home listed as held for sale as of March 31, 2021.

X
- Definition Represents the location of real estate investment. + References No definition available. + Details
Name: | sqft_GeographicLocationOfProperty
Namespace Prefix: | sqft_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of real estate investment property and lease intangibles net. + References No definition available. + Details
Name: | sqft_RealEstateInvestmentPropertyAndLeaseIntangiblesNet
Namespace Prefix: | sqft_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_WorldPlazaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_ExecutiveOfficeParkMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_GenesisPlazaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_DakotaCenterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_GrandPacificCenterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_ArapahoeCenterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_UnionTownCenterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_WestFargoIndustrialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_The300NpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_ResearchParkwayMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_OneParkCentreMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_HighlandCourtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_SheaCenterIIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_PresidioPropertyTrustIncPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_ModelHomePropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |