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Note 4 - Other Recent Business Transactions or Events (Details Textual) - USD ($) $ in Thousands		2 Months Ended	3 Months Ended
	Sep. 01, 2024	Mar. 12, 2025	Mar. 31, 2025	Mar. 31, 2024	Aug. 31, 2026	Aug. 31, 2025	Mar. 13, 2025	Feb. 25, 2025	Feb. 24, 2025	Dec. 31, 2024	Dec. 31, 2023
Equity Method Investments			$ 24,427	$ 43,281						$ 23,430	$ 14,241
Equity Method Investment, Realized Gain (Loss) on Disposal			(836)	(0)
Asset Management [Member]
Revenue from Contract with Customer, Excluding Assessed Tax			2,020	$ 2,717
The 2024 Note [Member]
Debt Instrument, Face Amount	$ 5,146
Debt Instrument, Interest Rate, Stated Percentage	12.00%
The 2024 Note [Member] \| Forecast [Member]
Debt Instrument, Amount Due and Payable					$ 2,573	$ 2,573
Master Transaction Agreement [Member]
Assigned Assets, Purchase Price							$ 3,500
Master Transaction Agreement [Member] \| Asset Management [Member]
Revenue from Contract with Customer, Excluding Assessed Tax			$ 352
JKD Capital Partners I, LTD [Member] \| Investment Agreement [Member]
Redeemable Financial Instruments	$ 7,719
Payments for Redeemable Financial Instruments	$ 2,573
Vellar Opportunities GP, LLC [Member] \| Operating LLC [Member] \| Maximum [Member]
Contractual Obligation								$ 4,234
Vellar Opportunities GP, LLC [Member]
Equity Method Investment, Ownership Percentage								33.40%	33.40%
Equity Method Investments								$ 10
Equity Method Investment, Realized Gain (Loss) on Disposal		$ (836)
Contractual Obligation								1,084	$ 2,121
Vellar Opportunities GP, LLC [Member] \| Operating LLC [Member] \| Maximum [Member]
Contractual Obligation								$ 4,234