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Note 23 - Related Party Transactions (Details Textual) - USD ($) $ in Thousands				2 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Jan. 31, 2022	Mar. 15, 2021	Jan. 31, 2020	Feb. 28, 2025	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024	Feb. 25, 2025	Feb. 24, 2025	Oct. 01, 2024	Sep. 01, 2024	Dec. 31, 2023	Dec. 31, 2019
Equity Method Investments					$ 24,681		$ 24,681		$ 23,430					$ 14,241
Income (Loss) from Equity Method Investments					(1,437)	$ (5,996)	$ 981	$ 23,049	21,704
Saving Plan 401K [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match							50.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay							3.00%
Defined Contribution Plan, Employer Discretionary Contribution Amount					135	104	$ 275	245
Corporate Aircraft [Member]
Contractual Obligation												$ 1,208
Amortization					$ 82	0	$ 286	0
CK Capital Partners B.V. [Member]
Equity Method Investment, Ownership Percentage															45.00%
Equity Method Investment, Quoted Market Value															$ 18
AOI [Member]
Equity Method Investment, Ownership Percentage															10.00%
Equity Method Investment, Quoted Market Value															$ 1
U.S. Insurance JV [Member]
Equity Method Investment, Ownership Percentage					1.83%		1.83%
CREO JV [Member]
Equity Method Investment, Ownership Percentage					7.50%		7.50%
Columbus Circle Capital Corp I [Member]
Equity Method Investment, Ownership Percentage					73.80%		73.80%
Financing Receivable, before Allowance for Credit Loss					$ 350		$ 350
Notes Receivable, Maximum Additional Amount					1,500		1,500
Equity Method Investments					2,160		2,160		0					0
Income (Loss) from Equity Method Investments							(1,307)		$ 0
Vellar Opportunities GP, LLC [Member]
Equity Method Investment, Ownership Percentage										33.40%	33.40%
Equity Method Investments										$ 10
Income (Loss) from Equity Method Investments					$ (0)		$ (381)
Contractual Obligation										1,084	$ 2,121
Vellar Opportunities GP, LLC [Member] \| Operating LLC [Member] \| Maximum [Member]
Contractual Obligation										$ 4,234
FTAC Emerald Sponsor [Member]
Equity Method Investments		$ 40
Equity Method Investment, Shares Received from Services Provided (in shares)		35,000		19,775					35,000
Other SPAC Sponsor Entities [Member]
Equity Method Investment, Ownership Percentage					0.78%		0.78%
Equity Method Investments					$ 16,567		$ 16,567		$ 18,325					$ 8,377
Income (Loss) from Equity Method Investments							1,439		$ 22,463
JKD Capital Partners I, LTD [Member]
Related Party Transaction, Amounts of Transaction	$ 4,500		$ 2,250
Daniel G. Cohen [Member] \| CK Capital Partners B.V. [Member]
Equity Method Investment, Quoted Market Value															$ 17
Grand Cru Farm [Member]
Related Party Transaction, Purchases from Related Party					4	$ 0	15	$ 0
The 2024 Note [Member]
Debt Instrument, Face Amount													$ 5,146
Repayments of Debt					$ 2,573		$ 2,573
2022 Note Purchase Agreement [Member] \| JKD Capital Partners I, LTD [Member]
Related Party Transaction, Amounts of Transaction	$ 2,250