Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues
Net trading		$ 16,599	$ 16,957	$ 54,181	$ 55,524
Principal transactions and other income		(20,709)	2,768	47,831	2,783
Total revenues		6,584	21,856	119,326	63,745
Operating expenses
Compensation and benefits		20,577	10,965	61,414	36,423
Business development, occupancy, equipment		869	641	2,375	2,037
Subscriptions, clearing, and execution		2,581	2,242	7,745	7,370
Professional fee and other operating		1,585	1,851	5,280	5,230
Depreciation and amortization		90	85	258	249
Impairment of goodwill		0	0	0	7,883
Total operating expenses		25,702	15,784	77,072	59,192
Operating income (loss)		(19,118)	6,072	42,254	4,553
Non-operating income (expense)
Interest expense, net		(1,731)	(1,952)	(5,527)	(7,638)
Income (loss) from equity method affiliates		2,857	(1,371)	7,512	(2,711)
Other non operating income		0	0	2,127	0
Income (loss) before income tax expense (benefit)		(17,992)	2,749	46,366	(5,796)
Income tax expense (benefit)		(248)	(594)	577	(623)
Net income (loss)		(17,744)	3,343	45,789	(5,173)
Less: Net income (loss) attributable to the non-controlling interest		(14,315)	1,688	38,138	(4,627)
Net income (loss) attributable to Cohen & Company Inc.		$ (3,429)	$ 1,655	$ 7,651	$ (546)
Income (loss) per common share-basic:
Basic income (loss) per common share (in dollars per share)		$ (2.61)	$ 1.44	$ 6.71	$ (0.47)
Weighted average shares outstanding-basic (in shares)		1,314,554	1,146,941	1,140,149	1,151,321
Income (loss) per common share-diluted:
Diluted income (loss) per common share (in dollars per share)		$ (3.46)	$ 1.19	$ 5.31	$ (0.48)
Weighted average shares outstanding-diluted (in shares)	[1]	4,170,321	5,115,583	5,212,247	3,951,163
Dividends declared per common share (in dollars per share)		$ 0.25	$ 0	$ 0.25	$ 0
Comprehensive income (loss)
Net income (loss)		$ (17,744)	$ 3,343	$ 45,789	$ (5,173)
Other comprehensive income (loss) item:
Foreign currency translation adjustments, net of tax of $0		(65)	98	(267)	35
Other comprehensive income (loss), net of tax of $0		(65)	98	(267)	35
Comprehensive income (loss)		(17,809)	3,441	45,522	(5,138)
Less: comprehensive income (loss) attributable to the non-controlling interest		(14,404)	1,761	37,910	(4,599)
Comprehensive income (loss) attributable to Cohen & Company Inc.		(3,405)	1,680	7,612	(539)
Asset Management [Member]
Revenues
Revenues, total		1,856	1,631	5,787	4,938
New Issue and Advisory [Member]
Revenues
Revenues, total		$ 8,838	$ 500	$ 11,527	$ 500

[1] Potentially diluted securities that were not included in the diluted per share calculations because they would be anti-dilutive were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 2017 Convertible Note 1,034,483 - - 1,034,483 Restricted Common Stock 102,038 - - 37,572 Restricted Operating LLC units 77,540 - - 29,144 1,214,061 - - 1,101,199