Note 16 - Equity - Rollforward of Shares Outstanding (Details) - Cohen & Company [Member] - Common Stock [Member]	6 Months Ended
Jun. 30, 2026 shares
Shares, outstanding (in shares)	1,750,055
Issuance of shares (in shares)	188,023
Vesting of shares (in shares)	135,896
Redemption of convertible non-controlling interest units (in shares)	600,000
Shares withheld for employee taxes and retired (in shares)	(34,141)
Shares, outstanding (in shares)	2,639,833

Number of new stock issued during the period.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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+ Details