XML 64 R44.htm IDEA: XBRL DOCUMENT
v3.20.2

SERIES B MANDATORILY REDEEMABLE PREFERRED STOCK (Detail) |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Aug. 01, 2019 USD ($) | Mar. 31, 2020 USD ($) shares | Mar. 31, 2019 USD ($) | Dec. 31, 2019 USD ($) shares | Dec. 31, 2018 USD ($) shares | Aug. 01, 2017 Property | Dec. 31, 2015 shares
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items] |  |  |  |  |  |  |
Interest expense |  | $ 2,553,846 | $ 2,545,203 | $ 10,649,646 | $ 13,041,016 |  |
Extension options | Property |  |  |  |  |  | 2 |
Term of extension options | 1 year |  |  |  |  |  |
Preferred stock redemption extension fee paid | $ 307,000 |  |  |  |  |  |
Total unamortized deferred stock costs |  |  |  | $ 1,066,000 | $ 1,427,000 |  |
Redeemable Convertible Preferred Stock Series B |  |  |  |  |  |  |
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items] |  |  |  |  |  |  |
Number of shares redeemed (in shares) | shares |  |  |  | 16,900 | 13,800 |  |
Number of shares redeemed, value |  |  |  | $ 16,900,000 | $ 13,800,000 |  |
Preferred stock shares outstanding (in shares) | shares |  | 0 |  | 0 | 16,900 |  |
Interest expense |  |  | $ 61,000 | $ 122,000 | $ 147,000 |  |
Total unamortized deferred costs |  | $ 0 |  | $ 0 |  |  |
Preferred stock shares issued (in shares) | shares |  |  |  | 0 | 16,900 |  | 35,000
Deferred financing costs |  |  |  | $ 3,100,000 |  |  |
Total unamortized deferred stock costs |  |  |  | 0 | $ 122,000 |  |
Redeemable preferred stock |  |  |  | $ 0 |  |  |

X
- Definition Debt Instrument, Number of Extension Options + References No definition available. + Details
Name: | sqft_DebtInstrumentNumberOfExtensionOptions
Namespace Prefix: | sqft_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Debt Instrument Term Of Extension Options + References No definition available. + Details
Name: | sqft_DebtInstrumentTermOfExtensionOptions
Namespace Prefix: | sqft_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Preferred stock redemption extension fee. + References No definition available. + Details
Name: | sqft_PreferredStockRedemptionExtensionFee
Namespace Prefix: | sqft_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Unamortized Deferred Costs + References No definition available. + Details
Name: | sqft_UnamortizedDeferredCosts
Namespace Prefix: | sqft_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Unamortized deferred stock costs. + References No definition available. + Details
Name: | sqft_UnamortizedDeferredStockCosts
Namespace Prefix: | sqft_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + 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=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399 + Details
Name: | us-gaap_DeferredFinanceCostsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of the cost of borrowed funds accounted for as interest expense. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (210.5-03(11)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 + Details
Name: | us-gaap_InterestExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The redemption (or callable) amount of currently redeemable preferred stock. Includes amounts representing dividends not currently declared or paid but which will be payable under the redemption features or for which ultimate payment is solely within the control of the issuer. + 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 210.5-02.27(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21564-112644 + Details
Name: | us-gaap_PreferredStockRedemptionAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. + 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(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_PreferredStockSharesIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. + 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(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_PreferredStockSharesOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SharesSubjectToMandatoryRedemptionBySettlementTermsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of stock bought back by the entity at the exercise price or redemption price. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 + Details
Name: | us-gaap_StockRedeemedOrCalledDuringPeriodShares
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity impact of the value of stock bought back by the entity at the exercise price or redemption price. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 + Details
Name: | us-gaap_StockRedeemedOrCalledDuringPeriodValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=sqft_RedeemableConvertiblePreferredStockSeriesBMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |