Purchase of noncontrolling interest net of capital contributions made during the period.

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Amount of increase (decrease) in noncontrolling interest from a business combination (deconsolidation).

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Amount of increase in noncontrolling interest from equity-based compensation.

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Amount of decrease to equity for grantee's tax withholding obligation for award under share-based payment arrangement, attributable to noncontrolling interest.

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Amount of equity (deficit) attributable to noncontrolling interest. Excludes temporary equity.

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Note 16 - Equity - Rollforward of Non-controlling Interests (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2025
Balance		$ 48,555			$ 48,555
Non-controlling interest share of income (loss)					3,829
Other comprehensive (loss)					250
Acquisition / (surrender) of additional units of consolidated subsidiary					(499)
Equity-based compensation					1,552
Shares withheld for employee taxes					(241)
Distributions to convertible non-controlling interest of Cohen & Company Inc.					(3,136)
Redemption of convertible non-controlling interest units		(954)		$ (659)	(954)
Minority Interest, Increase (Decrease) Related to Units of Consolidated Subsidiary	$ 10	(10)
Non-convertible non-controlling interest investment	2,669				2,669
Non-convertible non-controlling interest distributions		(1,236)	$ (3,567)		(1,236)
Balance	49,098				49,098
Sale of Equity Interest in Vellar GP [Member]
Minority Interest, Increase (Decrease) Related to Units of Consolidated Subsidiary		(1,691)			(1,691)
Operating LLC [Member]
Balance		37,093			37,093
Non-controlling interest share of income (loss)					4,143
Other comprehensive (loss)					250
Acquisition / (surrender) of additional units of consolidated subsidiary					(499)
Equity-based compensation					1,552
Shares withheld for employee taxes					(241)
Distributions to convertible non-controlling interest of Cohen & Company Inc.					(3,136)
Redemption of convertible non-controlling interest units					(954)
Non-convertible non-controlling interest investment
Non-convertible non-controlling interest distributions					0
Balance	38,208				38,208
Operating LLC [Member] \| Sale of Equity Interest in Vellar GP [Member]
Minority Interest, Increase (Decrease) Related to Units of Consolidated Subsidiary					0
Other Consolidated Subsidiaries [Member]
Balance		$ 11,462			11,462
Non-controlling interest share of income (loss)					(314)
Other comprehensive (loss)					0
Acquisition / (surrender) of additional units of consolidated subsidiary					0
Equity-based compensation					0
Shares withheld for employee taxes					0
Distributions to convertible non-controlling interest of Cohen & Company Inc.					0
Redemption of convertible non-controlling interest units					0
Non-convertible non-controlling interest investment					2,669
Non-convertible non-controlling interest distributions					(1,236)
Balance	$ 10,890				10,890
Other Consolidated Subsidiaries [Member] \| Sale of Equity Interest in Vellar GP [Member]
Minority Interest, Increase (Decrease) Related to Units of Consolidated Subsidiary					$ (1,691)