Form 8-K

8-K — Presidio Property Trust, Inc.

Accession: 0001493152-26-041173

Filed: 2026-09-02

Period: 2026-09-02

CIK: 0001080657

SIC: 6798 (REAL ESTATE INVESTMENT TRUSTS)

Item: Regulation FD Disclosure

Item: Other Events

Item: Financial Statements and Exhibits

Documents

8-K — form8-k.htm (Primary)

EX-99.1 (ex99-1.htm)

GRAPHIC (ex99-1_001.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: form8-k.htm · Sequence: 1

false

0001080657

2026-09-02

0001080657

SQFT:SeriesCommonStock0.01ParValuePerShareMember

2026-09-02

0001080657

SQFT:Sec9.375SeriesDCumulativeRedeemablePerpetualPreferredStock0.01ParValuePerShareMember

2026-09-02

0001080657

SQFT:SeriesCommonStockPurchaseWarrantsToPurchaseSharesOfCommonStockMember

2026-09-02

iso4217:USD

xbrli:shares

iso4217:USD

xbrli:shares

UNITED

STATES

SECURITIES

AND EXCHANGE COMMISSION

Washington,

D.C. 20549

FORM

8-K

CURRENT

REPORT

PURSUANT

TO SECTION 13 OR 15(d) OF THE

SECURITIES

EXCHANGE ACT OF 1934

Date

of Report (Date of earliest event reported): September 2, 2026

Presidio

Property Trust, Inc.

(Exact

name of registrant as specified in its charter)

Maryland

001-34049

33-0841255

(State

or other jurisdiction

incorporation)

(Commission

File

Number)

(IRS

Employer

Identification

No.)

4995

Murphy Canyon Road, Suite 300

San

Diego, California 92123

(Address

of principal executive offices, including zip code)

Registrant’s

telephone number, including area code: (760) 471-8536

Not

Applicable

(Former

name or former address, if changed since last report)

Check

the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under

any of the following provisions:

☒

Written communications

pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐

Soliciting material pursuant

to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐

Pre-commencement communications

pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐

Pre-commencement communications

pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities

registered pursuant to Section 12(b) of the Act:

Title

of each class

Trading

Symbol(s)

Name

of each exchange on which registered

Series A Common Stock, $0.01 par value per share

SQFT

The Nasdaq Stock Market

LLC

9.375% Series D Cumulative Redeemable Perpetual Preferred

Stock, $0.01 par value per share

SQFTP

The Nasdaq Stock Market

LLC

Series A Common Stock Purchase Warrants to Purchase

Shares of Common Stock

SQFTW

The Nasdaq Stock Market

LLC

Indicate

by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405

of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging

growth company ☐

an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying

with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item

7.01 Regulation FD Disclosure.

September 2, 2026, Presidio Property Trust, Inc. (the “Company”) issued a press release announcing the commencement by the

Company of the Exchange Offer (as defined herein), a copy of which is furnished as Exhibit 99.1 to this Current Report on Form 8-K and

incorporated herein by reference.

The

information provided pursuant to Item 7.01 of this Current Report on Form 8-K, including Exhibit 99.1, is “furnished” and

shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange

Act”), or otherwise subject to the liabilities of such section, and shall not be incorporated by reference in any filing made

by the Company under the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), except to

the extent expressly set forth by specific reference in any such filings.

Item

8.01 Other Events.

September 2, 2026, the Company commenced an offer to exchange (the “Exchange Offer”) any and all outstanding

shares of its 9.375% Series D Cumulative Redeemable Perpetual Preferred Stock (the “Series D Preferred Stock”) for newly

issued shares of its Series A Common Stock (the “Common Stock”).

exchange for each share of Series D Preferred Stock validly tendered, not validly withdrawn and validly accepted prior to 11:59 p.m.,

New York City time, on October 2, 2026 (such time and date, as the same may be extended, the “Expiration Date”), participating

holders of Series D Preferred Stock will receive 5.5 shares of Common Stock.

The

Exchange Offer will expire on the Expiration Date, unless extended or earlier terminated by the Company.

Cautionary

Note Regarding Forward-Looking Statements

This

Current Report on Form 8-K includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended

(the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”).

Words such as “expects,” “intends,” “believes,” “anticipates,” “plans,” “likely,”

“will,” “may,” “could,” “seeks,” “estimates” and variations of such words

and similar expressions are intended to identify such forward-looking statements, although not all forward-looking statements contain

such identifying words. Statements in this Form 8-K regarding the terms, timing and completion of the Exchange Offer are forward-looking

statements. These forward-looking statements are based on the Company’s present expectations, but actual outcomes or results may

differ materially from those expressed or implied by such statements. Except as required by law, the Company disclaims any obligation

to publicly update or revise any forward-looking statement to reflect changes in underlying assumptions or factors, new information,

data or methods, future events or other changes. Investors should not place undue reliance on forward-looking statements. For a further

discussion of the factors that could affect actual results, please refer to the risk factors included in the Company’s filings

with the SEC, including the final Prospectus filed on September 2, 2026, copies of which are available on the SEC’s website at

www.sec.gov.

Offer or Solicitation

This

Current Report on Form 8-K does not constitute an offer to sell, or a solicitation of an offer to buy, any securities, or a solicitation

of any vote or approval, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would

be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offering of securities shall

be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act.

Additional

Information about the Exchange Offer and Where to Find It

connection with the Exchange Offer, the Company filed a registration statement on Form S-4 with the SEC on August 7, 2026 (as amended

on August 21, 2026) that includes the Prospectus. The registration statement was declared effective by the SEC on September 2, 2026,

at 9:00 a.m. Eastern Time. The Company has filed the final Prospectus in connection with the Exchange Offer with the SEC on September

2, 2026. The Company also filed with the SEC a tender offer statement on Schedule TO (as supplemented or amended from time to time, the

“Schedule TO”) in connection with the Exchange Offer. The Company may file other relevant documents with the SEC regarding

the Exchange Offer. This Current Report on Form 8-K is not a substitute for the Prospectus, the registration statement, the Schedule

TO or any other document that the Company may file with the SEC. INVESTORS AND SECURITY HOLDERS ARE URGED TO READ THE REGISTRATION STATEMENT,

THE SCHEDULE TO, THE FINAL PROSPECTUS AND ANY OTHER RELEVANT DOCUMENTS THAT MAY BE FILED WITH THE SEC, AS WELL AS ANY AMENDMENTS OR SUPPLEMENTS

TO THOSE DOCUMENTS, CAREFULLY AND IN THEIR ENTIRETY BECAUSE THEY CONTAIN OR WILL CONTAIN IMPORTANT INFORMATION ABOUT THE COMPANY AND

THE EXCHANGE OFFER. Investors and security holders may obtain free copies of the registration statement, the Schedule TO, the final Prospectus

and all other documents containing important information about the Company and the Exchange Offer, as and when such documents are filed

with the SEC, through the website maintained by the SEC at www.sec.gov, or by contacting the information agent for the

Exchange Offer, Broadridge Corporate Issuer Solutions, LLC, at shareholder@broadridge.com or 888-789-8409.

Item

9.01 Financial Statements and Exhibits.

(d)

Exhibits

The

following exhibit is being filed herewith:

Exhibit

No.

Description

99.1

Press Release, dated September 2, 2026.

104

Cover Page Interactive

Data File (embedded within the Inline XBRL document)

SIGNATURE

Pursuant

to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by

the undersigned hereunto duly authorized.

PRESIDIO PROPERTY TRUST, INC.

By:

/s/

Ed Bentzen

Name:

Ed Bentzen

Title:

Chief Financial Officer

Dated: September 2, 2026

EX-99.1

Filename: ex99-1.htm · Sequence: 2

Exhibit 99.1

Presidio

Property Trust Announces Commencement of Exchange Offer for All Outstanding Shares of its Series D Preferred Stock

San

Diego, CA – September 2, 2026 – (NASDAQ: SQFT; SQFTP; SQFTW) Presidio Property Trust, Inc. (“Presidio” or

the “Company”), an internally managed, diversified real estate investment trust, announced today that it has commenced an

exchange offer (the “Exchange Offer”) to exchange any and all outstanding shares of its 9.375% Series D Cumulative Redeemable

Perpetual Preferred Stock (the “Series D Preferred Stock”) for newly issued shares of its Series A Common Stock (the “Common

Stock”).

exchange for each share of Series D Preferred Stock validly tendered, not validly withdrawn and validly accepted prior to 11:59

p.m., New York City time, on October 2, 2026 (such time and date, as the same may be extended, the “Expiration Date”), participating

holders of Series D Preferred Stock will receive 5.5 shares of Common Stock. The Exchange Offer will expire on the Expiration Date, unless

extended or earlier terminated by the Company.

The

Company will not issue fractional shares of Common Stock in the Exchange Offer. If any fractional share of Common Stock would otherwise

be issuable to a participating holder upon the exchange of its shares of Series D Preferred Stock, the number of shares of Common Stock

to be issued to that participating holder will be rounded up to the nearest whole number. The Company does not intend to round up fractional

shares at the beneficial level and will instead round up any such fractional shares at the participant level.

Series

D Preferred holders should be aware that their broker, dealer, commercial bank, trust company or other nominee or custodian may establish

earlier deadlines for participation in or withdrawal from the Exchange Offer. Accordingly, each Series D Preferred holder wishing to

participate in the Exchange Offer should promptly contact the applicable broker, dealer, commercial bank, trust company or other nominee

or custodian as soon as possible to determine the deadline by which it must take action to participate in the Exchange Offer.

Broadridge

Corporate Issuer Solutions, LLC is acting as the information agent and the exchange agent in connection with the Exchange Offer.

The

complete terms and conditions of the Exchange Offer are set forth in the Prospectus (as it may be supplemented or amended from time to

time, the “Prospectus”) that has been filed with the U.S. Securities and Exchange Commission (the “SEC”). The

Company has also filed with the SEC a Schedule TO (as it may be supplemented or amended from time to time, the “Schedule TO”)

containing additional information about the Company and the Exchange Offer. You may obtain free copies of the Prospectus, the Schedule

TO, the registration statement and all other documents containing important information about Presidio and the Exchange Offer through

the SEC’s website at www.sec.gov or by contacting the information agent, Broadridge Corporate Issuer Solutions,

LLC, at shareholder@broadridge.com or 888-789-8409. You will not be charged for any of these documents that you request.

The

Exchange Offer will not be contingent upon any minimum number of shares of Series D Preferred Stock being tendered or any financing conditions.

The Exchange Offer will, however, be subject to other conditions. Certain of the Company’s directors and executive officers have

indicated to the Company that they intend to tender their shares of Series D Preferred Stock in the Exchange Offer. These individuals

will receive shares of Common Stock on the same terms (including the exchange ratio) as other tendering holders of Series D Preferred

Stock. Their participation should not be viewed as a recommendation that any holder participate in the Exchange Offer.

The

Company’s Board of Directors has authorized and approved the Exchange Offer. However, neither the Board of Directors nor any of

the Company’s officers or employees, the exchange agent or the information agent is making a recommendation to holders of Series

D Preferred Stock as to whether they should participate in the Exchange Offer. Each holder of Series D Preferred Stock must make its

own investment decision regarding the Exchange Offer based on its own assessment of the market value of the Series D Preferred Stock

it holds compared with the market value of the Common Stock it would receive in the Exchange Offer, its liquidity needs, its investment

objectives and any other factors it deems relevant.

The

Company’s Series D Preferred Stock and the Common Stock are listed on the Nasdaq Capital Market under the symbols “SQFTP”

and “SQFT,” respectively. As of September 2, 2026, a total of 973,736 shares of Series D Preferred Stock were outstanding.

About

Presidio Property Trust

Presidio

is an internally managed, diversified REIT with holdings in model home properties which are triple-net leased to homebuilders, office,

industrial, and retail properties. Presidio’s model homes are leased to homebuilders located primarily in the Sun Belt states.

Presidio’s office, industrial, and retail properties

are located primarily in Colorado, with properties also located in Maryland, North Dakota, Texas, and Southern California. For more information

on Presidio, please visit Presidio’s website at https://www.PresidioPT.com.

Cautionary

Note Regarding Forward-Looking Statements

This

press release includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities

Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Words such as “expects,”

“intends,” “believes,” “anticipates,” “plans,” “likely,” “will,”

“may,” “could,” “seeks,” “estimates” and variations of such words and similar expressions

are intended to identify such forward-looking statements, although not all forward-looking statements contain such identifying words.

Statements in this press release regarding the terms, timing and completion of the Exchange Offer are forward-looking statements.

These

forward-looking statements are based on the Company’s present expectations, but actual outcomes or results may differ materially

from those expressed or implied by such statements. Except as required by law, the Company disclaims any obligation to publicly update

or revise any forward-looking statement to reflect changes in underlying assumptions or factors, new information, data or methods, future

events or other changes. Investors should not place undue reliance on forward-looking statements. For a further discussion of the factors

that could affect actual results, please refer to the risk factors included in the Company’s filings with the SEC, including the

final Prospectus filed on September 2, 2026, copies of which are available on the SEC’s website at www.sec.gov.

Offer or Solicitation

This

communication does not constitute an offer to sell, or a solicitation of an offer to buy, any securities, or a solicitation of any vote

or approval, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful

prior to registration or qualification under the securities laws of any such jurisdiction. No offering of securities shall be made except

by means of a prospectus meeting the requirements of Section 10 of the Securities Act.

Additional

Information about the Exchange Offer and Where to Find It

connection with the Exchange Offer, the Company filed a registration statement on Form S-4 with the SEC on August 7, 2026 (as amended

on August 21, 2026) that includes the Prospectus. The registration statement was declared effective by the SEC on September 2, 2026,

at 9:00 a.m. Eastern Time. The Company has filed the final Prospectus in connection with the Exchange Offer with the SEC on September

2, 2026. The Company also filed with the SEC a tender offer statement on Schedule TO (as supplemented or amended from time to time, the

“Schedule TO”) in connection with the Exchange Offer. The Company may file other relevant documents with the SEC regarding

the Exchange Offer. This press release is not a substitute for the Prospectus, the registration statement, the Schedule TO or any other

document that the Company may file with the SEC. INVESTORS AND SECURITY HOLDERS ARE URGED TO READ THE REGISTRATION STATEMENT, THE SCHEDULE

TO, THE FINAL PROSPECTUS AND ANY OTHER RELEVANT DOCUMENTS THAT MAY BE FILED WITH THE SEC, AS WELL AS ANY AMENDMENTS OR SUPPLEMENTS TO

THOSE DOCUMENTS, CAREFULLY AND IN THEIR ENTIRETY BECAUSE THEY CONTAIN OR WILL CONTAIN IMPORTANT INFORMATION ABOUT THE COMPANY AND THE

EXCHANGE OFFER. Investors and security holders may obtain free copies of the registration statement, the Schedule TO, the final Prospectus

and all other documents containing important information about the Company and the Exchange Offer, as and when such documents are filed

with the SEC, through the website maintained by the SEC at www.sec.gov.

Investor

Relations Contact:

Presidio

Property Trust, Inc.

Lowell

Hartkorn, Investor Relations

LHartkorn@presidiopt.com

Telephone:

(760) 471-8536 x1244

GRAPHIC

Filename: ex99-1_001.jpg · Sequence: 3

Binary file (5743 bytes)

Download ex99-1_001.jpg

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 9

v3.26.1

Cover

Sep. 02, 2026

Document Type

8-K

Amendment Flag

false

Document Period End Date

Sep. 02, 2026

Entity File Number

001-34049

Entity Registrant Name

Presidio

Property Trust, Inc.

Entity Central Index Key

0001080657

Entity Tax Identification Number

33-0841255

Entity Incorporation, State or Country Code

Entity Address, Address Line One

4995

Murphy Canyon Road

Entity Address, Address Line Two

Suite 300

Entity Address, City or Town

San

Diego

Entity Address, State or Province

Entity Address, Postal Zip Code

92123

City Area Code

(760)

Local Phone Number

471-8536

Written Communications

true

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Entity Emerging Growth Company

false

Series A Common Stock, $0.01 par value per share

Title of 12(b) Security

Series A Common Stock, $0.01 par value per share

Trading Symbol

SQFT

Security Exchange Name

NASDAQ

9.375% Series D Cumulative Redeemable Perpetual Preferred Stock, $0.01 par value per share

Title of 12(b) Security

9.375% Series D Cumulative Redeemable Perpetual Preferred

Stock, $0.01 par value per share

Trading Symbol

SQFTP

Security Exchange Name

NASDAQ

Series A Common Stock Purchase Warrants to Purchase Shares of Common Stock

Title of 12(b) Security

Series A Common Stock Purchase Warrants to Purchase

Shares of Common Stock

Trading Symbol

SQFTW

Security Exchange Name

NASDAQ

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

Period Type:

duration

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

Period Type:

duration

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Address Line 2 such as Street or Suite number

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine2

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

Period Type:

duration

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

Period Type:

duration

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

Period Type:

duration

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

Period Type:

duration

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

Period Type:

duration

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

Period Type:

duration

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Details

Name:

us-gaap_StatementClassOfStockAxis=SQFT_SeriesCommonStock0.01ParValuePerShareMember

Namespace Prefix:

Data Type:

Balance Type:

Period Type:

- Details

Name:

us-gaap_StatementClassOfStockAxis=SQFT_Sec9.375SeriesDCumulativeRedeemablePerpetualPreferredStock0.01ParValuePerShareMember

Namespace Prefix:

Data Type:

Balance Type:

Period Type:

- Details

Name:

us-gaap_StatementClassOfStockAxis=SQFT_SeriesCommonStockPurchaseWarrantsToPurchaseSharesOfCommonStockMember

Namespace Prefix:

Data Type:

Balance Type:

Period Type: