XML 50 R39.htm IDEA: XBRL DOCUMENT v3.8.0.1

Stockholders' Equity (Dividends) (Details) - USD ($)		3 Months Ended
	Jan. 23, 2012	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Cash Dividends [Abstract]
Payments of dividends		$ 0	$ 0
Cash dividends paid, net of reinvested stock dividends				$ 1,172,000
Annualized dividend rate (in dollars per share)				$ 0.10
Dividend Reinvestment Plan [Abstract]
Registered shares of common stock pursuant to dividend reinvestment plan (in shares)	3,000,000
Percentage of purchase price per share (in hundredths)	95.00%
Former sales price per share (in dollars per share)	$ 9.50
Payment of sales commission or dealer manager fee	$ 0
Notice period for amendments to Dividend Reinvestment Plan		30 days
Common stock issued under dividend reinvestment plan		$ 17,400,000
Common stock issued under dividend reinvestment plan (in shares)		1,834,147
Stock issued during period, shares dividend reinvestment plan		0

X

- Definition

Amount of cash outflow in the form of dividends, net of reinvested stock dividends.

+ References

No definition available.

+ Details

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

X

- Definition

Dividend Reinvestment Plan [Abstract]

+ References

No definition available.

+ Details

Name:	sqft_DividendReinvestmentPlanAbstract
Namespace Prefix:	sqft_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The period of notice for an amendment, suspension or termination to the Dividend Reinvestment Plan prior to a designated dividend record date.

+ References

No definition available.

+ Details

Name:	sqft_NoticePeriodForAmendmentsToDividendReinvestmentPlan
Namespace Prefix:	sqft_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Payment of sales commission or dealer manager fee.

+ References

No definition available.

+ Details

Name:	sqft_PaymentOfSalesCommissionOrDealerManagerFee
Namespace Prefix:	sqft_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The percentage of the purchase price per share of the entity.

+ References

No definition available.

+ Details

Name:	sqft_PercentageOfPurchasePricePerShare
Namespace Prefix:	sqft_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of registered shares of common stock pursuant to the dividend reinvestment plan.

+ References

No definition available.

+ Details

Name:	sqft_RegisteredSharesOfCommonStockPursuantToDividendReinvestmentPlan
Namespace Prefix:	sqft_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Per share amount for each share of common stock formerly sold.

+ References

No definition available.

+ Details

Name:	sqft_SalesPricePerShareOfStock
Namespace Prefix:	sqft_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Shares issued under dividend reinvestment.

+ References

No definition available.

+ Details

Name:	sqft_SharesIssuedUnderDividendReinvestmentPlan
Namespace Prefix:	sqft_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

+ Details

Name:	us-gaap_CommonStockDividendsPerShareCashPaid
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_DividendsCashAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585

+ Details

Name:	us-gaap_PaymentsOfDividends
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Number of shares issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the shareholders to reinvest dividends paid to them by the entity on new issues of stock by the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21463-112644

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Value of stock issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the holder of the stock to reinvest dividends paid to them by the entity on new issues of stock by the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21463-112644

+ Details

Name:	us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration