XML 48 R38.htm IDEA: XBRL DOCUMENT v3.21.2

Note 7 - Mortgage Notes Payable - Mortgage Notes Payable (Details) - USD ($)

9 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Mortgage Notes Payable, net

$ 86,255,680

$ 120,029,696

Mortgage Notes [Member]

Mortgage Notes Payable

86,929,031

120,788,005

Unamortized loan costs

(673,351)

(758,309)

Mortgage Notes [Member] | Waterman Plaza [Member]

Mortgage Notes Payable

^[1]

$ 0

3,207,952

Interest rate, variable

^[1],[2]

0.00%

Mortgage Notes [Member] | World Plaza [Member]

Mortgage Notes Payable

^[3],[4]

$ 0

5,802,568

Interest rate, variable

^[2],[3],[4]

2.91%

Maturity date

^[3],[4]

Jul. 05, 2021

Mortgage Notes [Member] | Garden Gateway Plaza [Member]

Mortgage Notes Payable

^[1]

$ 0

5,861,523

Maturity date

^[1]

Aug. 05, 2021

Interest rate

^[1],[2]

5.00%

Mortgage Notes [Member] | The 300 N.P [Member]

Mortgage Notes Payable

$ 2,243,328

2,273,478

Maturity date

Jun. 11, 2022

Interest rate

^[2]

4.95%

Mortgage Notes [Member] | Highland Court [Member]

Mortgage Notes Payable

^[1]

$ 0

6,274,815

Maturity date

^[1]

Sep. 01, 2022

Interest rate

^[1],[2]

3.82%

Mortgage Notes [Member] | Dakota Center [Member]

Mortgage Notes Payable

$ 9,734,220

9,900,279

Maturity date

Jul. 06, 2024

Interest rate

^[2]

4.74%

Mortgage Notes [Member] | Research Parkway [Member]

Mortgage Notes Payable

$ 1,719,390

1,760,432

Maturity date

Jan. 05, 2025

Interest rate

^[2]

3.94%

Mortgage Notes [Member] | Arapahoe Center [Member]

Mortgage Notes Payable

$ 7,812,125

7,932,255

Maturity date

Jan. 05, 2025

Interest rate

^[2]

4.34%

Mortgage Notes [Member] | Union Town Center [Member]

Mortgage Notes Payable

$ 8,197,495

8,315,550

Maturity date

Jan. 05, 2025

Interest rate

^[2]

4.28%

Mortgage Notes [Member] | One Park Centre [Member]

Mortgage Notes Payable

$ 6,304,625

6,385,166

Maturity date

Sep. 05, 2025

Interest rate

^[2]

4.77%

Mortgage Notes [Member] | Genesis Plaza [Member]

Mortgage Notes Payable

$ 6,196,202

6,276,273

Maturity date

Sep. 06, 2025

Interest rate

^[2]

4.71%

Mortgage Notes [Member] | Shea Center II [Member]

Mortgage Notes Payable

$ 17,559,316

17,727,500

Maturity date

Jan. 05, 2026

Interest rate

^[2]

4.92%

Mortgage Notes [Member] | Executive Office Park [Member]

Mortgage Notes Payable

^[1]

$ 0

2,985,998

Maturity date

^[1]

Jun. 01, 2027

Interest rate

^[1],[2]

4.83%

Mortgage Notes [Member] | West Fargo Industrial [Member]

Mortgage Notes Payable

$ 4,177,334

4,262,718

Maturity date

Aug. 05, 2029

Interest rate

^[2]

3.27%

Mortgage Notes [Member] | Grand Pacific Center [Member]

Mortgage Notes Payable

^[5]

$ 3,649,729

3,738,142

Maturity date

^[5]

Aug. 01, 2037

Interest rate

^[2],[5]

4.02%

Mortgage Notes [Member] | Subtotal, Presidio Property Trust, Inc. Properties [Member]

Mortgage Notes Payable

$ 67,593,764

92,704,649

Mortgage Notes [Member] | Model Home [Member]

Mortgage Notes Payable

^[4]

$ 19,335,267

$ 28,083,356

Mortgage Notes [Member] | Model Home [Member] | Minimum [Member]

Maturity date

^[4],[6]

Dec. 31, 2021

Interest rate

2.50%

Mortgage Notes [Member] | Model Home [Member] | Maximum [Member]

Maturity date

^[4],[6]

Dec. 31, 2024

Interest rate

5.63%

[1]	Waterman Plaza and Garden Gateway Plaza were sold during the first quarter of 2021, while Highland Court and Executive Office Park were sold in the second quarter of 2021.
[2]	Interest rates as of September 30, 2021.
[3]	During June 2021, this loan was paid in full with cash from the sale of other properties and excess cash on hand.
[4]	Property held for sale as of September 30, 2021. There were three model homes included as real estate assets held for sale.
[5]	Interest rate is subject to reset on September 1, 2023.
[6]	Our model homes have stand-alone mortgage note at interest rates ranging from 2.50% to 5.63% per annum as of September 30, 2021.

X

- Definition

The variable percentage of interest rate on debt instrument.

+ References

No definition available.

+ Details

Name:	sqft_DebtInstrumentInterestRateVariablePercentage
Namespace Prefix:	sqft_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of net mortgage notes payable.

+ References

No definition available.

+ Details

Name:	sqft_MortgageNotesPayableNet
Namespace Prefix:	sqft_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount of notes payable including unamortized cost.

+ References

No definition available.

+ Details

Name:	sqft_NotesPayableIncludingUnamortizedCost
Namespace Prefix:	sqft_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

+ Details

Name:	us-gaap_DebtInstrumentMaturityDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_UnamortizedDebtIssuanceExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=sqft_MortgageNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_WatermanPlazaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_WorldPlazaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_GardenGatewayPlazaMember
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_HighlandCourtMember
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_ResearchParkwayMember
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_OneParkCentreMember
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_SheaCenterIIMember
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_WestFargoIndustrialMember
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_SubtotalPresidioPropertyTrustIncPropertiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=sqft_ModelHomeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: