Minimum fixed charge coverage ratio under the covenant of the debt instrument.

No definition available.

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Balance Type:	na
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- Definition

Represents number of properties classified as held for sale.

+ References

No definition available.

+ Details

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Namespace Prefix:	sqft_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The purchase offer price for real estate.

+ References

No definition available.

+ Details

Name:	sqft_RealEstatePurchaseOfferPrice
Namespace Prefix:	sqft_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

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+ Details

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

- Definition

The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

+ References

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- Definition

The charge against earnings in the period to reduce the carrying amount of real property to fair value.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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- Details

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Note 7 - Mortgage Notes Payable (Details Textual)		1 Months Ended	3 Months Ended	12 Months Ended
Note 7 - Mortgage Notes Payable (Details Textual)	Feb. 13, 2026 USD ($)	Jul. 31, 2025 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)	Mar. 31, 2026 USD ($)
Dakota Center [Member]
Real Estate, Purchase Offer Price		$ 5,125,000
Impairment of Real Estate				$ 3,500,000
Shea Center II [Member]
Gain (Loss) on Sale of Properties	$ (2,400,000)
Shea Center II [Member] \| Mortgage Notes [Member]
Debt Instrument, Face Amount					$ 16,353,296
Model Home [Member]
Impairment of Real Estate			$ 26,943
Number of Properties Classified as Held for Sale					4
Model Home [Member] \| Mortgage Notes [Member]
Debt Instrument, Covenant, Minimum Fixed Charge Coverage Ratio					1.1
Model Home [Member] \| Mortgage Notes [Member] \| Minimum [Member]
Debt Instrument, Interest Rate, Stated Percentage					5.76%
Model Home [Member] \| Mortgage Notes [Member] \| Maximum [Member]
Debt Instrument, Interest Rate, Stated Percentage					8.00%