Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net trading	$ 7,491	$ 7,966	$ 23,117	$ 30,365
Principal transactions and other income (loss)	595	(1,192)	10,440	(26,157)
Total revenues	17,121	23,465	48,517	31,937
Operating expenses
Compensation	15,219	15,227	35,757	41,320
Business development, occupancy, equipment	1,268	1,234	3,887	3,777
Subscriptions, clearing, and execution	2,409	2,112	6,877	6,025
Professional fee and other operating	2,189	1,905	6,151	5,593
Depreciation and amortization	140	139	433	414
Total operating expenses	21,225	20,617	53,105	57,129
Operating income (loss)	(4,104)	2,848	(4,588)	(25,192)
Non-operating income (expense)
Interest expense, net	(1,685)	(1,346)	(4,907)	(3,803)
Income (loss) from equity method affiliates	(702)	618	(1,608)	(14,530)
Income (loss) before income tax expense (benefit)	(6,491)	2,120	(11,103)	(43,525)
Income tax expense (benefit)	(755)	1,761	5,379	3,534
Net income (loss)	(5,736)	359	(16,482)	(47,059)
Net income (loss)	(5,736)	359	(16,482)	(47,059)
Net income / (loss) attributable to Cohen & Company Inc.	$ (423)	$ (919)	$ (9,661)	$ (10,388)
Basic (loss) per common share (in dollars per share)	$ (0.28)	$ (0.64)	$ (6.4)	$ (7.33)
Weighted average shares outstanding-basic (in shares)	1,521,856	1,428,883	1,510,498	1,417,358
Diluted (loss) per common share (in dollars per share)	$ (0.28)	$ (0.64)	$ (6.4)	$ (7.33)
Weighted average shares outstanding-diluted (in shares)	5,536,106	1,428,883	1,510,498	1,417,358
Comprehensive income (loss)
Net income (loss)	$ (5,736)	$ 359	$ (16,482)	$ (47,059)
Other comprehensive (loss) item:
Foreign currency translation adjustments, net of tax of $0	(77)	(127)	(22)	(392)
Other comprehensive (loss), net of tax of $0	(77)	(127)	(22)	(392)
Comprehensive income (loss)	(5,813)	232	(16,504)	(47,451)
Less: comprehensive income (loss) attributable to the non-controlling interest	(5,369)	1,184	(6,835)	(36,958)
Comprehensive (loss) attributable to Cohen & Company Inc.	(444)	(952)	(9,669)	(10,493)
Non-controlling Interest of Operating LLC [Member]
Non-operating income (expense)
Less: Net income (loss) attributable to the non-convertible non-controlling interest of the Operating LLC	1,936	(109)	8,536	(18,980)
Cohen Co Including Noncontrolling Interest [Member]
Non-operating income (expense)
Net income (loss)	(7,672)	468	(25,018)	(28,079)
Less: Net income (loss) attributable to the non-convertible non-controlling interest of the Operating LLC	(7,249)	1,387	(15,357)	(17,691)
Net income (loss)	(7,672)	468	(25,018)	(28,079)
Comprehensive income (loss)
Net income (loss)	(7,672)	468	(25,018)	(28,079)
Asset Management [Member]
Revenues, total	1,788	3,456	5,418	7,243
New Issue and Advisory [Member]
Revenues, total	$ 7,247	$ 13,235	$ 9,542	$ 20,486