XML 54 R43.htm IDEA: XBRL DOCUMENT
v3.19.2

Segments (Capital Expenditures) (Details) - USD ($) | 6 Months Ended
--- | ---
Jun. 30, 2019 | Jun. 30, 2018
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract] |  |
Capital expenditures and tenant improvements | $ 4,660,917 | $ 1,808,140
Acquisition of operating properties | 6,116,035 | 10,196,098
Total real estate investments | 10,776,952 | 12,004,238
Office/Industrial Properties [Member] |  |
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract] |  |
Capital expenditures and tenant improvements | 4,645,667 | 1,788,880
Model Home Properties [Member] |  |
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract] |  |
Acquisition of operating properties | 6,116,035 | 10,196,098
Retail/Mixed Use Properties [Member] |  |
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract] |  |
Capital expenditures and tenant improvements | $ 15,250 | $ 19,260

X
- Definition The total of additions to real estate and lease intangibles + References No definition available. + Details
Name: | sqft_RealEstateAcquisitions
Namespace Prefix: | sqft_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Reconciliation of other significant reconciling items from segments to consolidated. + References No definition available. + Details
Name: | sqft_ReconciliationOfOtherSignificantReconcilingItemsFromSegmentsToConsolidatedAbstract
Namespace Prefix: | sqft_
Data Type: | xbrli:stringItemType
Balance Type: | na
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
Name: | us-gaap_PaymentsForTenantImprovements
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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 -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=sqft_IndustrialOfficePropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=srt_RetailSiteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |