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Note 16 - Subsequent Events (Details Textual) - USD ($) $ / shares in Units, $ in Thousands							6 Months Ended
	Aug. 06, 2025	Jul. 14, 2025	Jul. 08, 2025	Jul. 12, 2021	Jun. 17, 2021	Jun. 15, 2021	Jun. 30, 2025	Jun. 30, 2024	Jul. 13, 2025
Pre-Funded Warrant Shares [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 0.0001
Common Stock Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)				200,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)				$ 55
Subsequent Event [Member] | Mortgage Loan on Genesis Plaza Property [Member]
Debt Instrument, Face Amount	$ 6,250
Debt Instrument, Term (Year)	4 years
Debt Instrument, Interest Rate, Stated Percentage	7.07%
Subsequent Event [Member] | Pre-Funded Warrant Shares [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)		30,830
Subsequent Event [Member] | Common Stock Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)		200,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 12							$ 55
Subsequent Event [Member] | Series A Common Stock and Accompanying Pre-funded Warrant Shares [Member]
Proceeds from Issuance or Sale of Equity, Gross		$ 2,050
Shares Issued, Price Per Share (in dollars per share)		$ 12
Proceeds from Issuance or Sale of Equity		$ 1,700
Series D Preferred Stock [Member]
Preferred Stock, Dividend Rate, Percentage							9.375%
Preferred Stock, Dividends Per Share, Declared (in dollars per share)							$ 1.17186	$ 1.17186
Stock Issued During Period, Shares, New Issues (in shares)					920,000	800,000
Shares Issued, Price Per Share (in dollars per share)						$ 25
Series D Preferred Stock [Member] | Subsequent Event [Member]
Preferred Stock, Dividend Rate, Percentage			9.375%
Series D Preferred Stock [Member] | Subsequent Event [Member] | O 2025 M8 Dividends [Member]
Preferred Stock, Dividends Per Share, Declared (in dollars per share)			$ 0.19531
Series D Preferred Stock [Member] | Subsequent Event [Member] | O 2025 M9 Dividends [Member]
Preferred Stock, Dividends Per Share, Declared (in dollars per share)			0.19531
Series D Preferred Stock [Member] | Subsequent Event [Member] | O 2025 M10 Dividends [Member]
Preferred Stock, Dividends Per Share, Declared (in dollars per share)			$ 0.19531
Common Class A [Member]
Stock Issued During Period, Shares, New Issues (in shares)				100,000
Common Class A [Member] | Subsequent Event [Member]
Stock Issued During Period, Shares, New Issues (in shares)		140,000

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