Note 26 - Earnings (Loss) Per Common Share - Earnings (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands |
12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Net income/(loss) | $ 14,431 | $ (129) | $ (5,113) | ||||||
| Add/ (deduct): Income / (loss) attributable to non-controlling interest attributable to Operating LLC membership (1) | [1] | 27,616 | (357) | 0 | |||||
| Add / (deduct): Adjustment (2) | [2] | (16,022) | 33 | 0 | |||||
| Net income / (loss) on a fully converted basis | $ 26,025 | $ (453) | $ (5,113) | ||||||
| Weighted average common shares outstanding - Basic (in shares) | 1,731,957 | 1,614,897 | 1,513,469 | ||||||
| Unrestricted Operating LLC units of membership interests exchangeable into Cohen & Company Inc. shares (1) (in shares) | [1] | 4,122,929 | 4,060,719 | 0 | |||||
| Restricted units or shares (in shares) | 129,064 | 0 | 0 | ||||||
| Weighted average common shares outstanding - Diluted (in shares) | 5,983,950 | 5,675,616 | 1,513,469 | ||||||
| Basic income (loss) per common share (in dollars per share) | $ 8.33 | $ (0.08) | $ (3.38) | ||||||
| Diluted income (loss) per common share (in dollars per share) | [3] | $ 4.35 | $ (0.08) | $ (3.38) | |||||
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| X | ||||||||||
- Definition Represents the income tax impact if the Operating LLC membership units had been converted at the beginning of the period, and the adjustment for the non-controlling interest amount to be consistent with the weighted average share calculation. No definition available.
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| X | ||||||||||
- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of restricted units or shares. No definition available.
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| X | ||||||||||
- Definition Represents unrestricted units exchangeable into shares. No definition available.
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| X | ||||||||||
- Definition Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise of dilutive convertible securities excluding adjustments related to ESOP convertible preferred stock, stock options, and restrictive stock units. No definition available.
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| X | ||||||||||
- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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