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Note 13 - Subsequent Events (Details Textual) |  |  |  |  |  |  |  | 1 Months Ended | 2 Months Ended | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 11, 2022 USD ($) | Mar. 01, 2022 $ / shares | Jan. 08, 2022 USD ($) | Jan. 07, 2022 USD ($) $ / shares shares | Jan. 02, 2022 $ / shares shares | Jun. 24, 2021 $ / shares | Jun. 15, 2021 | Jan. 31, 2022 $ / shares | Feb. 28, 2022 USD ($) $ / shares | Mar. 31, 2022 $ / shares | Dec. 31, 2021 USD ($) $ / shares | Dec. 31, 2020 $ / shares | Jan. 21, 2027 shares | Jan. 21, 2022 $ / shares shares | Jan. 14, 2022
Restricted Cash, Total |  |  |  |  |  |  |  |  |  |  | $ 4,700,000 |  |  |  |
Series D Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividend Rate, Percentage |  |  |  |  |  |  | 9.375% |  |  |  | 9.375% |  |  |  |
Preferred Stock, Dividends Per Share, Declared (in dollars per share) | $ / shares |  |  |  |  |  | $ 0.10417 |  |  |  |  | $ 1.27603 | $ 0 |  |  |
Common Class A [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  | 0.01 | 0.01 |  |  |
Common Stock, Dividends, Per Share, Declared (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  | $ 0.410 | $ 0.100 |  |  |
Series A Warrants [Member] | Forecast [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  | 0.10 |  |
Cash [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and Cash Equivalents, at Carrying Value, Ending Balance |  |  |  |  |  |  |  |  |  |  | $ 10,000,000 |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Target Period (Year) |  |  | 1 year |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Grand Pacific Center [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property Held For Sale, Sale Price |  |  |  |  |  |  |  |  | $ 7,500,000 |  |  |  |  |  |
Assets Held-for-sale, Not Part of Disposal Group, Total |  |  |  |  |  |  |  |  | $ 5,500,000 |  |  |  |  |  |
Subsequent Event [Member] | World Plaza [Member] | CALIFORNIA |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Sale of Real Estate, Total | $ 10,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Series D Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Dividend Rate, Percentage |  |  |  |  |  |  |  |  |  | 9.375% |  |  |  |  |
Preferred Stock, Dividends Per Share, Declared (in dollars per share) | $ / shares |  |  |  |  |  |  |  | $ 0.19531 | $ 0.19531 | $ 0.19531 |  |  |  |  |
Subsequent Event [Member] | Common Class A [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Dividends, Per Share, Declared (in dollars per share) | $ / shares |  | $ 0.105 |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Series A Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7.00 |
Warrants and Rights Outstanding, Term (Year) |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 years | 5 years
Subsequent Event [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Potential Candidates Value |  |  | $ 300,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Potential Candidates Value |  |  | 1,200,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Murphy Canyon Acquisition Sponsor, LLC [Member] | Subsequent Event [Member] | Restricted Cash Held in Trust [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted Cash, Total |  |  | $ 134,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Murphy Canyon Acquisition Sponsor, LLC [Member] | SPAC, Murphy Canyon Acquisition Corp. [Member] | Subsequent Event [Member] | Cash [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SPAC, Purchase Units, Payments for the Purchase of Equity |  |  |  | $ 7,540,000 |  |  |  |  |  |  |  |  |  |  |
SPAC, Initial Public Offering [Member] | Murphy Canyon Acquisition Sponsor, LLC [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SPAC Units, Composition, Number of Redeemable Warrants (in shares) | shares |  |  |  | 0.75 |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance or Sale of Equity, Total |  |  |  | $ 132,250,000 |  |  |  |  |  |  |  |  |  |  |
SPAC, Placement Units, Number of Units Purchased (in shares) | shares |  |  |  | 828,750 |  |  |  |  |  |  |  |  |  |  |
SPAC, Placement Units, Price Per Share (in dollars per share) | $ / shares |  |  |  | $ 10.00 |  |  |  |  |  |  |  |  |  |  |
SPAC, Purchase Units, Payments for the Purchase of Equity |  |  |  | $ 8,287,500 |  |  |  |  |  |  |  |  |  |  |
SPAC, Initial Public Offering [Member] | Murphy Canyon Acquisition Sponsor, LLC [Member] | Subsequent Event [Member] | Director [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SPAC Placement Units, Number of Units to be Transferred, Total (in shares) | shares |  |  |  | 45,000 |  |  |  |  |  |  |  |  |  |  |
SPAC Placement Units, Number of Units to be Transferred |  |  |  | 15,000 |  |  |  |  |  |  |  |  |  |  |
SPAC, Initial Public Offering [Member] | Murphy Canyon Acquisition Sponsor, LLC [Member] | SPAC, Murphy Canyon Acquisition Corp. [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SPAC Units, Composition, Number of Common Stocks (in shares) | shares |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  |  |  |  | $ 0.0001 |  |  |  |  |  |  |  |  |  |
SPAC Units, Composition, Number of Redeemable Warrants (in shares) | shares |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | shares |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |  |  |  |  | $ 11.50 |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance or Sale of Equity, Total |  |  |  | $ 132,250,000 |  |  |  |  |  |  |  |  |  |  |
SPAC, Placement Units, Number of Units Purchased (in shares) | shares |  |  |  | 754,000 |  |  |  |  |  |  |  |  |  |  |
SPAC, Placement Units, Price Per Share (in dollars per share) | $ / shares |  |  |  | $ 10.00 |  |  |  |  |  |  |  |  |  |  |
SPAC, Purchase Units, Payments for the Purchase of Equity |  |  |  | $ 7,540,000 |  |  |  |  |  |  |  |  |  |  |
SPAC, Initial Public Offering [Member] | Murphy Canyon Acquisition Sponsor, LLC [Member] | SPAC, Murphy Canyon Acquisition Corp. [Member] | Subsequent Event [Member] | Director [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SPAC Placement Units, Number of Units to be Transferred, Total (in shares) | shares |  |  |  | 45,000 |  |  |  |  |  |  |  |  |  |  |
SPAC Placement Units, Number of Units to be Transferred |  |  |  | 15,000 |  |  |  |  |  |  |  |  |  |  |

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