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Note 4 - Insurance SPAC Investments and Other Significant Events (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Income Statement Impact of Insurance [Table Text Block] |
|  | Year Ended December 31, 2020 |
|  | Insurance SPAC Sponsor Entities |  |  | INSU Pipe Sponsor, LLC |  |  | Operating LLC |  |  | Total |
Principal transactions and other income |  | $ | 41,035 |  |  | $ | (842 | ) |  | $ | 426 |  |  | $ | 40,619 |
Equity-based compensation |  |  | (11,700 | ) |  |  | - |  |  |  | - |  |  |  | (11,700 | )
Other operating |  |  | (2 | ) |  |  | - |  |  |  | - |  |  |  | (2 | )
Income / (loss) from equity method affiliates |  |  | (3,138 | ) |  |  | - |  |  |  | - |  |  |  | (3,138 | )
Net income / (loss) |  |  | 26,195 |  |  |  | (842 | ) |  |  | 426 |  |  |  | 25,779 |
Less: Net (loss) income attributable to the non-controlling interest - Operating LLC |  |  | (9,328 | ) |  |  | 410 |  |  |  | - |  |  |  | (8,918 | )
Net income / (loss) - Operating LLC |  |  | 16,867 |  |  |  | (432 | ) |  |  | 426 |  |  |  | 16,861 |
Less: Net income / (loss) attributable to the convertible non-controlling interest |  |  | 12,205 |  |  |  | (313 | ) |  |  | 308 |  |  |  | 12,200 |
Net income / (loss) attributable to Cohen & Company Inc. |  | $ | 4,662 |  |  | $ | (119 | ) |  | $ | 118 |  |  | $ | 4,661 |

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