Cohen & Company (COHN) 10-Q 6 May 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	Apr. 30, 2019
Document and Entity Information [Abstract]
Entity Registrant Name	Cohen & Co Inc.
Entity Central Index Key	0001270436
Document Type	10-Q
Document Period End Date	Mar. 31, 2019
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Trading Symbol	cohn
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		1,217,624

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018
Assets
Cash and cash equivalents		$ 9,283	$ 14,106
Receivables from brokers, dealers, and clearing agencies		104,444	129,812
Due from related parties		625	793
Other receivables		8,196	12,072
Investments-trading		285,473	301,235
Other investments, at fair value		9,440	13,768
Receivables under resale agreements		4,510,389	5,171,053
Investment in equity method affiliates		3,767
Goodwill	[1]	7,992	7,992
Right-of-use asset - operating leases		8,081
Other assets		3,637	3,621
Total assets		4,951,327	5,654,452
Liabilities
Payables to brokers, dealers, and clearing agencies		162,951	201,598
Accounts payable and other liabilities		11,840	11,452
Accrued compensation		1,944	5,254
Trading securities sold, not yet purchased		98,245	120,122
Securities sold under agreements to repurchase		4,560,713	5,210,587
Deferred income taxes		1,903	2,017
Lease liability - operating leases		8,658
Redeemable financial instruments		18,679	17,448
Debt		43,658	43,536
Total liabilities		4,908,591	5,612,014
Commitments and contingencies (See note 20)
Stockholders' Equity:
Voting Non-Convertible Preferred Stock, $0.001 par value per share, 4,983,557 shares authorized, 4,983,557 shares issued and outstanding (see note 17)		5	5
Common Stock, $0.01 par value per share, 100,000,000 shares authorized, 1,217,624 and 1,204,196 shares issued and outstanding, respectively, including 73,715 and 93,479 unvested or restricted share awards, respectively		12	12
Additional paid-in capital		68,689	68,591
Accumulated other comprehensive loss		(916)	(908)
Accumulated deficit		(33,438)	(31,926)
Total stockholders' equity		34,352	35,774
Non-controlling interest		8,384	6,664
Total equity		42,736	42,438
Total liabilities and equity		$ 4,951,327	$ 5,654,452
[1]	Goodwill and intangible assets are allocated to the Capital Markets and Asset Management business segments as indicated in the table above.

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2019	Dec. 31, 2018
Common Stock, par value	$ 0.01	$ 0.01
Common Stock, shares authorized	100,000,000	100,000,000
Common Stock, shares issued	1,217,624	1,204,196
Common Stock, shares outstanding	1,217,624	1,204,196
Common Stock, unvested or restricted share awards	73,715	93,479
Series E Preferred Stock [Member]
Preferred Stock, par value	$ 0.001	$ 0.001
Preferred Stock, shares authorized	4,983,557	4,983,557
Preferred Stock, shares issued	4,983,557	4,983,557
Preferred Stock, shares outstanding	4,983,557	4,983,557

Consolidated Statements Of Oper

Consolidated Statements Of Operations And Comprehensive Income (Loss) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Revenues
Principal transactions and other income		$ 414	$ 647
Total revenues		11,145	9,338
Operating expenses
Compensation and benefits		6,364	5,194
Business development, occupancy, equipment		811	867
Subscriptions, clearing, and execution		2,273	1,834
Professional fee and other operating		1,679	1,742
Depreciation and amortization		81	61
Total operating expenses		11,208	9,698
Operating income (loss)		(63)	(360)
Non-operating income (expense)
Interest income (expense)		(1,859)	(1,819)
Income (loss) from equity method affiliates		(8)
Income (loss) before income tax expense (benefit)		(1,930)	(2,179)
Income tax expense (benefit)		(106)	(28)
Net income (loss)		(1,824)	(2,151)
Less: Net income (loss) attributable to the non-controlling interest		(622)	(677)
Net income (loss) attributable to Cohen & Company Inc.		$ (1,202)	$ (1,474)
Income (loss) per common share-basic:
Basic income (loss) per common share		$ (1.06)	$ (1.26)
Weighted average shares outstanding-basic		1,133,166	1,172,476
Income (loss) per common share-diluted:
Diluted income (loss) per common share		$ (1.06)	$ (1.26)
Weighted average shares outstanding-diluted	[1]	1,665,575	1,704,885
Dividends declared per common share		$ 0.20	$ 0.20
Comprehensive income (loss)
Net income (loss)		$ (1,824)	$ (2,151)
Other comprehensive income (loss) item:
Foreign currency translation adjustments, net of tax of $0		9	107
Other comprehensive income (loss), net of tax of $0		9	107
Comprehensive income (loss)		(1,815)	(2,044)
Less: comprehensive income (loss) attributable to the non-controlling interest		(619)	(644)
Comprehensive income (loss) attributable to Cohen & Company Inc.		(1,196)	(1,400)
Net Trading [Member]
Revenues
Total revenue		8,729	6,191
Asset Management [Member]
Revenues
Total revenue		$ 2,002	1,804
New Issue And Advisory [Member]
Revenues
Total revenue			$ 696
[1]	For the three months ended March 31, 2019, weighted average common shares outstanding excludes (i) 59,182 shares representing restricted Common Stock and restricted Operating LLC membership units, which when vested can be converted into Common Stock, (ii) 565,469 shares from the assumed conversion of the 2013 Convertible Notes, and (iii) 1,034,483 shares from the assumed conversion of the 2017 Convertible Note because the inclusion of such shares would be anti-dilutive. For the three months ended March 31, 2018, weighted average common shares outstanding excludes (i) 26,691 shares representing restricted Common Stock, (ii) 274,917 shares from the assumed conversion of the 2013 Convertible Notes, and (iii) 1,034,483 shares from the assumed conversion of the 2017 Convertible Note because the inclusion of such shares would be anti-dilutive.

Consolidated Statements Of Op_2

Consolidated Statements Of Operations And Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Consolidated Statements of Operations And Comprehensive Income/(Loss) [Abstract]
Foreign currency translation adjustments, tax	$ 0	$ 0
Other comprehensive income (loss), tax	$ 0	$ 0

Consolidated Statement Of Chang

Consolidated Statement Of Changes In Equity - 3 months ended Mar. 31, 2019 - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional paid-in capital [Member]	Retained Earnings/ (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total Stockholders' Equity [Member]	Non-controlling Interest [Member]	Total
Balance at Dec. 31, 2018	$ 5	$ 12	$ 68,591	$ (31,926)	$ (908)	$ 35,774	$ 6,664	$ 42,438
Net income (loss)				(1,202)		(1,202)	(622)	(1,824)
Other comprehensive income (loss)					6	6	3	9
Acquisition / (surrender) of additional units of consolidated subsidiary, net			133		(14)	119	(119)
Equity-based compensation and vesting of shares			117			117	55	172
Shares withheld for employee taxes			(87)			(87)	(41)	(128)
Purchase and retirement of common stock			(65)			(65)		(65)
Investment in non-controlling interest							2,550	2,550
Dividends/Distributions				(290)		(290)	(106)	(396)
Balance at Mar. 31, 2019	$ 5	$ 12	$ 68,689	(33,438)	$ (916)	34,352	$ 8,384	42,736
Cumulative effect adjustment- adoption of ASU 2016-02				$ (20)		$ (20)		$ (20)

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating activities
Net income (loss)	$ (1,824)	$ (2,151)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Equity-based compensation	172	125
Accretion of income on other investments, at fair value	(106)	(343)
Realized loss (gain) on other investments, at fair value	(419)	206
(Income) / loss from equity method affiliates	8
Change in unrealized (gain) loss on other investments, at fair value	171	(357)
Depreciation and amortization	81	61
Amortization of discount on debt	122	226
Deferred tax provision (benefit)	(114)	(15)
Change in operating assets and liabilities, net:
(Increase) decrease in other receivables	3,894	554
(Increase) decrease in investments-trading	15,762	30,641
(Increase) decrease in other assets	258	(403)
(Increase) decrease in receivables under resale agreement	660,664	(385,159)
Change in receivables from / payables to related parties, net	168	57
Increase (decrease) in accrued compensation	(3,310)	(3,264)
Increase (decrease) in accounts payable and other liabilities	233	982
Increase (decrease) in trading securities sold, not yet purchased	(21,877)	2,968
Change in receivables from/ payables to brokers, dealers, and clearing agencies	(13,279)	(60,841)
Increase (decrease) in securities sold under agreements to repurchase	(649,874)	421,368
Net cash provided by (used in) operating activities	(9,270)	4,655
Investing activities
Purchase of investments-other investments, at fair value	(408)	(16,765)
Sales and returns of principal-other investments, at fair value	5,091	1,081
Investment in equity method affiliates	(3,775)
Purchase of furniture, equipment, and leasehold improvements	(20)	(39)
Net cash provided by (used in) investing activities	888	(15,723)
Financing activities
Proceeds from redeemable financial instrument	1,268
Cash used to net share settle equity awards	(128)	(75)
Purchase and retirement of Common Stock	(65)	(71)
Proceeds from non-controlling interest investment	2,550
Cohen & Company Inc. dividends	(61)	(40)
Net cash provided by (used in) financing activities	3,564	(186)
Effect of exchange rate on cash	(5)	77
Net increase (decrease) in cash and cash equivalents	(4,823)	(11,177)
Cash and cash equivalents, beginning of period	14,106	22,933
Cash and cash equivalents, end of period	$ 9,283	$ 11,756

Organization And Nature Of Oper

Organization And Nature Of Operations	3 Months Ended
	Mar. 31, 2019
Organization And Nature Of Operations [Abstract]
Organization And Nature Of Operations	1. ORGANIZATION AND NATURE OF OPERATIONS Organizational History Cohen Brothers, LLC (“Cohen Brothers”) was formed on October 7, 2004 by Cohen Bros. Financial, LLC (“CBF”). Cohen Brothers was established to acquire the net assets of CBF’s subsidiaries (the “Formation Transaction”): Cohen Bros. & Company, Inc.; Cohen Frères SAS; Dekania Investors, LLC; Emporia Capital Management, LLC; and the majority interest in Cohen Bros. & Toroian Investment Management, Inc. The Formation Transaction was accomplished through a series of transactions occurring between March 4, 2005 and May 31, 2005. From its formation until December 16, 2009, Cohen Brothers operated as a privately-owned limited liability company. On December 16, 2009, Cohen Brothers completed its merger (the “Merger”) with a subsidiary of Alesco Financial Inc. (“AFN”), a publicly traded real estate investment trust. As a result of the Merger, AFN contributed substantially all of its assets into Cohen Brothers in exchange for newly issued membership units directly from Cohen Brothers. In addition, AFN received additional Cohen Brothers membership interests directly from its members in exchange for AFN common stock. In accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”), the Merger was accounted for as a reverse acquisition, and Cohen Brothers was deemed to be the accounting acquirer. As a result, all of AFN’s assets and liabilities were required to be revalued at fair value as of the acquisition date. The remaining membership interests of Cohen Brothers that were not held by AFN were included as a component of non-controlling interest in the consolidated balance sheets. Subsequent to the Merger, AFN was renamed Cohen & Company Inc. In January 2011, it was renamed again as Institutional Financial Markets, Inc. (“IFMI”) and on September 1, 2017, it was renamed again as Cohen & Company Inc. Effective January 1, 2010, the Company ceased to qualify as a REIT. The Company The Company is a financial services company specializing in fixed income markets. As of March 31, 2019 , the Company had $2.78 billion in assets under management (“AUM”) of which 83.1% , or $2.31 billion, was in collateralized debt obligations (“CDOs”). The remaining portion of AUM is from a diversified mix of Investment Vehicles. In these financial statements, the “Company” refers to Cohen & Company Inc. and its subsidiaries on a consolidated basis. Cohen & Company, LLC or the “Operating LLC” refers to the main operating subsidiary of the Company. “Cohen Brothers” refers to the pre-Merger Cohen Brothers, LLC and its subsidiaries. “AFN” refers to the pre-merger Alesco Financial Inc. and its subsidiaries. When the term “Cohen & Company Inc.” is used, it is referring to the parent company itself. “JVB Holdings” refers to J.V.B. Financial Holdings, LLC; “JVB” refers to J.V.B. Financial Group LLC, a broker dealer subsidiary; “CCFL” refers to Cohen & Company Financial Limited (formerly known as EuroDekania Management LTD), a subsidiary regulated by the Financial Conduct Authority (formerly known as Financial Services Authority) in the United Kingdom; and “EuroDekania” refers to EuroDekania (Cayman) Ltd., a Cayman Islands exempted company that is externally managed by CCFL. The Company’s business is organized into the following three business segments. Capital Markets : The Company’s Capital Markets business segment consists primarily of fixed income sales, trading, matched book repurchase agreement (“repo”) financing, new issue placements in corporate and securitized products, and advisory services. The Company’s fixed income sales and trading group provides trade execution to corporate investors, institutional investors, mortgage originators, and other smaller broker-dealers. The Company specializes in a variety of products, including but not limited to: corporate bonds, asset backed securities (“ABS”), mortgage backed securities (“MBS”), residential mortgage backed securities (“RMBS”), CDOs, collateralized loan obligations (“CLOs”), collateralized bond obligations (“CBOs”), collateralized mortgage obligations (“CMOs”), municipal securities, to-be-announced securities (“TBAs”) and other forward agency MBS contracts, Small Business Administration (“SBA”) loans, U.S. government bonds, U.S. government agency securities, brokered deposits and certificates of deposit (“CDs”) for small banks, and hybrid capital of financial institutions including trust preferred securities (“TruPS”), whole loans, and other structured financial instruments. The Company also offers execution and brokerage services for equity products. The Company carries out its capital markets activities primarily through its subsidiaries: JVB in the United States and CCFL in Europe. Asset Management : The Company’s Asset Management business segment manages assets within CDOs, managed accounts, joint ventures, and investment funds (collectively referred to as “Investment Vehicles”). A CDO is a form of secured borrowing. The borrowing is secured by different types of fixed income assets such as corporate or mortgage loans or bonds. The borrowing is in the form of a securitization, which means that the lenders are actually investing in notes backed by the assets. In the event of default, the lenders will have recourse only to the assets securing the loan. The Company’s Asset Management business segment includes its fee-based asset management operations, which include ongoing base and incentive management fees. Principal Investing : The Company’s Principal Investing business segment is comprised of investments that the Company has made for the purpose of earning an investment return rather than investments made to support the Company’s trading, matched book repo, or other Capital Markets business segment activities. These investments are a component of the Company’s other investments, at fair value and investment in equity method affiliates in our consolidated balance sheets. The Company generates its revenue by business segment primarily through the following activities. Capital Markets · Trading activities of the Company, which include execution and brokerage services, riskless trading activities as well as gains and losses (unrealized and realized) and income and expense earned on securities and derivatives classified as trading; · Net interest income on the Company’s matched book repo financing activities; and · New issue and advisory revenue comprised primarily of (i) new issue revenue associated with originating, arranging, or placing newly created financial instruments and (ii) revenue from advisory services. Asset Management · Asset management fees for the Company’s on-going asset management services provided to certain Investment Vehicles, which may include fees both senior and subordinate to the securities in the Investment Vehicle, and incentive management fees earned based on the performance of the various Investment Vehicles. Principal Investing · Gains and losses (unrealized and realized) and income and expense earned on securities classified as other investments, at fair value.

Basis Of Presentation

Basis Of Presentation	3 Months Ended
	Mar. 31, 2019
Organization And Nature Of Operations [Abstract]
Basis Of Presentation	2. BASIS OF PRESENTATION The financial statements of the Company included herein were prepared in conformity with U.S. GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. The information furnished includes all adjustments and accruals of a normal recurring nature, which, in the opinion of management, are necessary for a fair presentation of results for the interim month periods. All intercompany accounts and transactions have been eliminated in consolidation. The results for the three months ended March 31, 2019 and 2018 are not necessarily indicative of the results for the entire year or any subsequent interim period. These financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 201 8 . Capitalized terms used herein without definition have the meanings ascribed to them in the Annual Report on Form 10-K for the year ended December 31, 201 8 . 

Summary Of Significant Accounti

Summary Of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2019
Summary Of Significant Accounting Policies [Abstract]
Summary Of Significant Accounting Policies	3. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES A. Adoption of New Accounting Standards  In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers ( Topic 606 ). Subsequent to that date, the FASB has issued additional ASUs clarifying certain aspects of ASU 2014-09 but they did not change the core principal of ASU 2014-09. The new guidance requires entities to recognize revenue in a way that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The Company adopted the new guidance on January 1, 2018 using the retrospective transition method. This ASU excludes from its scope revenue recognition related to items the Company records as a component of net trading and principal transactions within its consolidated statements of operations and , therefore , this ASU had no impact on these items. In terms of asset management and other revenue, the main impact of Topic 606 related to the timing of the recognition of incentive management fees in certain cases. Prior to the adoption of Topic 606, the Company would recognize incentive fees when they were fixed and determinable. Under Topic 606, the Company is required to recognize incentive fees when they are probable and there is not a significant chance of reversal in the future. For the asset management contracts in place at the time of adoption, this change in policy did not result in any actual change in revenue that had already been recognized and , therefore , there was no transition adjustment necessary.  In February 2016, the FASB issued ASU 2016-01, Financial Instruments-Overall (Subtopic 825-10) . The amendments in ASU 2016-01, among other things, require equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income; require public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; require separate presentation of financial assets and liabilities by measurement category and form of financial asset; and eliminate the requirement for public business entities to disclose the methods and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost. The Company’s adoption of the provisions of ASU 2016-01 effective January 1, 2018 did not have a n effect on the Company’s consolidated financial statements  In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). Under the new guidance (subsequently updated with ASU 2018-01, ASU 2018-10, ASU 2018-11, ASU 2018-20 and ASU 2019-01), lessees will be required to recognize the following for all leases with the exception of short-term leases: (i) a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis , and (ii) a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Lessor accounting is largely unchanged . The Company adopted the provisions of the new guidance effective January 1, 2019. The Company recorded the following: (a) a right of use asset of $8,416 , (b) a lease commitment liability of $8,860 , (c) a reduction in retained earnings from cumulative effect of adoption of $20 , (d) an increase in other receivables of $18 , and (e) a reduction in other liabilities of $406 . See note 12. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. The amendments in this ASU provide cash flow statement classification guidance on eight specific cash flow presentation issues with the objective of reducing existing diversity in practice. The Company’s adoption of the provisions of ASU 2016-15 effective January 1, 2018 did not have a n effect on the Company’s consolidated financial statements In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other than Inventory . The amendments in this ASU require an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. The amendments eliminate the exception of an intra-entity transfer of an asset other than inventory. The Company’s adoption of the provisions of ASU 2016-16 effective January 1, 2018 did not have a n effect on the Company’s consolidated financial statements In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business . The amendments in this ASU clarify the definition of a business and affect all companies and other reporting organizations that must determine whether they have acquired or sold a business. The Company’s adoption of the provisions of ASU 2017-01 effective January 1, 2018 did not have a n effect on the Company’s consolidated financial statements  In February 2017, the FASB issued ASU 2017-05 , Other Income – Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20): Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets . The amendments in this ASU clarify that a financial asset within the scope of this topic may include nonfinancial assets transferred within a legal entity to counterparty. The amendments clarify that an entity should identify each distinct nonfinancial asset or in substance nonfinancial asset promised to counterparty and derecognize each asset when counterparty obtains control of it. The Company’s adoption of the provisions of ASU 2017-05 effective January 1, 2018 did not have an effect on the Company’s consolidated financial statements.  In June 2018, the FASB issued ASU 2018-07, Compensation – Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting . The amendments in this ASU expand the scope of Topic 718, which previously only include d share-based payments to employees, to include share-based payments issued to nonemployees for goods or services. Consequently, the accounting for share-based payments to nonemployees and employees will be substantially aligned. The Company’s adoption of the provisions of ASU 2018-07 effective January 1, 2019 did not have an effect on the Company’s consolidated financial statements.  In March 2017, the FASB issued ASU 2017-08, Receivables – Nonrefundable Fees and Other Costs, Premium Amortization on Purchased Callable Debt Securitie s ( Sub-Topic 310-20 ). The amendments in this ASU shorten the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. The Company’s adoption of the provisions of ASU 2017-08 effective January 1, 2019 did not have an effect on the Company’s consolidated financial statements.  In May 2017, the FASB issued ASU 2017-09 , Compensation - Stock Compensation (Topic 718): Scope of Modification Accounting. The amendments in this ASU provide guidance on determining those changes to the terms and conditions of share-based payment awards that require an entity to apply modification accounting. The Company’s adoption of the provisions of ASU 2017-09 effective January 1, 2018 did not have an effect on the Company’s consolidated financial statements.  In August 2017, the FASB issued ASU 2017-12, Derivative and Hedging – Targeted Improvements to Accounting for Hedging Activities (Topic 815) . The amendments in this ASU refine and expand hedge accounting for both financial and commodity risks and contain provisions to create more transparency and clarify how economic results are presented. The Company’s adoption of the provisions of ASU 2017-12 effective January 1, 2019 did not have an effect on the Company’s consolidated financial statements.  In February 2018, the FASB issued ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220) : Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The amendments in this ASU provide the option to reclassify stranded tax effects within accumulated other comprehensive income (“AOCI”) to retained earnings in each period in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Act (or portion thereof) is recorded. The Company’s adoption of the provisions of ASU 2018-02 effective January 1, 2019 did not have an effect on the Company’s consolidated financial statements. B. Recent Accounting Developments  In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . The amendments in this ASU require the measurement of all expected credit losses for financial assets held at the reporting date to be based on historical experience, current conditions, and reasonable and supportable forecasts. Financial institutions and other organizations will now use forward-looking information to better inform their credit loss estimates. Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. In addition, the ASU amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. The amendments in this ASU are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted beginning after December 15, 2018, including interim periods within those fiscal years. The Company is currently evaluating the new guidance to determine the impact it may have on its consolidated financial statements.  In January 2017, the FASB issued ASU 2017-04, Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment . The amendments in this ASU eliminate Step 2 from the goodwill impairment test. The annual or interim goodwill impairment test is performed by comparing the fair value of a reporting unit with its carrying amount. An impairment charge should be recognized for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. This ASU is effective for fiscal years beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017 and should be applied on a prospective basis. The Company is currently evaluating the new guidance to determine the impact it may have on its consolidated financial statements.  In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework –Changes to the Disclosure Requirements for Fair Value Measurement. The ASU modifies the disclosure requirements in Topic 820, by removing certain disclosure requirements related to the fair value hierarchy, modifying existing disclosure requirements related to measurement uncertainty , and adding new disclosure requirements such as disclosing the changes in unrealized gains and losses for the period included in other comprehensive income for recurring level 3 fair value measurements held at the end of the reporting period and disclosing the range and weighted average of significant unobservable inputs used to develop level 3 fair value measurements. This ASU is effective for public companies for annual reporting periods and interim periods within those annual periods beginning after December 15, 2019. Early adoption is permitted. The Company is currently evaluating the new guidance to determine the impact it may have on its consolidated financial statements.  In November 2018, the FASB issued ASU 2018-18, Collaborative Arrangements (Topic 808): Clarifying the Interaction Between Topic 808 and Topic 606 . The ASU also provides more comparability in the presentation of revenue for certain transactions between collaborative arrangement participants. It accomplishes this by allowing organizations to only present units of account in collaborative arrangements that are within the scope of the revenue recognition standard together with revenue accounted for under the revenue recognition standard. The parts of the collaborative arrangement that are not in the scope of the revenue recognition standard should be presented separately from revenue accounted for under the revenue recognition. This ASU is effective for public companies for annual reporting periods and interim periods within those annual periods beginning after December 15, 2019. The Company is currently evaluating the new guidance to determine the impact it may have on its consolidated financial statements . C. Fair Value of Financial Instruments The following methods and assumptions were used by the Company in estimating the fair value of its financial instruments. These determinations were based on available market information and appropriate valuation methodologies. Considerable judgment is required to interpret market data to develop the estimates and, therefore, these estimates may not necessarily be indicative of the amount the Company could realize in a current market exchange. The use of different market assumptions and/or estimation methodologies may have a material effect on the estimated fair value amounts. Refer to note 8 for a discussion of the valuation hierarchy with respect to investments-trading; other investments, at fair value; and derivatives held by the Company.  Cash equivalents : Cash equivalents are carried at historical cost, which is assumed to approximate fair value. The estimated fair value measurement of cash equivalents is classified within level 1 of the valuation hierarchy . Investments-trading : These amounts are carried at fair value. The fair value is based on either quoted market prices of an active exchange, independent broker market quotations, market price quotations from third party pricing services, or valuation models when quotations are not available. Other investments, at fair value : These amounts are carried at fair value. The fair value is based on quoted market prices of an active exchange, independent broker market quotations, or valuation models when quotations are not available. In the case of investments in alternative investment funds, fair value is generally based on the reported net asset value of the underlying fund. Receivables under resale agreements : Receivables under resale agreements are carried at their contracted resale price, have short-term maturities, and are repriced frequently or bear market interest rates and, accordingly, these contracts are at amounts that approximate fair value. The estimated fair value measurements of receivables under resale agreements are based on observations of actual market activity and are generally classified within level 2 of the valuation hierarchy . Trading securities sold, not yet purchased : These amounts are carried at fair value. The fair value is based on quoted market prices of an active exchange, independent market quotations, market price quotations from third party pricing services, or valuation models when quotations are not available. Securities sold under agreements to repurchase : The liabilities for securities sold under agreements to repurchase are carried at their contracted repurchase price, have short-term maturities, and are repriced frequently with amounts normally due in one month or less and, accordingly, these contracts are carried at amounts that approximate fair value. The estimated fair value measurements of securities sold under agreements to repurchase are based on observations of actual market activity and are generally classified within level 2 of the valuation hierarchy . Redeemable financial instruments : The liabilities for redeemable financial instruments are carried at their redemption value, which approximates fair value. The estimated fair value measurement of the redeemable financial instruments is classified within level 3 of the valuation hierarchy . Debt : These amounts are carried at outstanding principal less unamortized discount and deferred financing costs. However, a substantial portion of the debt was assumed in the Merger and recorded at fair value as of that da te. As of March 31, 2019, and December 31, 2018 , the fair value of the Company’s debt was estimated to be $51,181 and $50,159 , respectively. The estimated fair value measurements of the debt are generally based on discounted cash flow models prepared by the Company’s management primarily using discount rates for similar instruments issued to companies with similar credit risks to the Company and are generally classified within level 3 of the value hierarchy. Derivatives : These amounts are carried at fair value. Derivatives may be included as a component of investments-trading; trading securities sold, not yet purchased; and other investments, at fair value. See notes 8 and 9 . The fair value is generally based on quoted market prices on an exchange that is deemed to be active for derivative instruments such as foreign currency forward contracts and Eurodollar futures. For derivative instruments, such as TBAs and other extended settlement trades, the fair value is generally based on market price quotations from third party pricing services.  

New Business

New Business	3 Months Ended
	Mar. 31, 2019
New Business [Abstract]
New Business	4. NEW BUSINESS  U.S. Insurance JV  On May 16, 2018, the Compan y committed to invest up to $3,000 in a newly formed joint venture (the “ U.S. Insurance JV ”) with an outside investor who committed to invest approximately $63,000 of equity in the U.S. Insurance JV . The U.S. Insurance JV was formed for the purposes of investing in debt issued by small and medium sized U.S. and Bermuda insurance and reinsurance companies and is managed by the Company. The Company is required to invest 4.5% of the total equity of the U.S. Insurance JV with an absolute limit of $3,000 . The U.S. Insurance JV may use leverage to grow its assets. The insurance company debt that will be funded by the U.S. Insurance JV may be originated by the Company and there may be origination fees earned in connection with such transactions. The Company will also earn management fees as manager of the U.S. Insurance JV . The Company is entitled to a quarterly base management fee, an annual incentive fee (if certain return hurdles are met), and an additional incentive fee upon the liquidation of the portfolio (if certain return hurdles are met) . The Company has elected the fair value option in accordance with the provisions of FASB ASC 820, Fair Value Measurements (“FASB ASC 820”) to account for its investment in the U.S. Insurance JV. The investment is included in other investments, at fair value, on the consolidated balance sheets, and gains and losses (both realized and unrealized) are recognized in the consolidated statement of operations as a component of principal transactions and other income. Because the U.S. Insurance JV has the attributes of investment companies as described in FASB ASC 946-15-2, the Company will estimate the fair value of its investment using the net asset value (“NAV”) per share (or its equivalent) as of the reporting date in accordance with the “practical expedient” provisions related to investments in certain entities that calculate net asset value per share (or its equivalent) included in FASB ASC 820 for all entities. See note 7. SPAC Fund  On August 6, 2018, the Company invested in and became the general partner of a newly formed partnership (the “ SPAC Fund”) for the purposes of investing in the equity interests of special purpose acquisition companies (“SPACs”). T he Company is the manager of the SPAC Fund. The Company has invested $600 in the SPAC Fund . The Company is entitled to a quarterly base management fee based on a percentage of the NAV of the SPAC Fund and an annual incentive allocation based on the actual returns earned by the SPAC Fund . The Company has elected the fair value option in accordance with the provisions of FASB ASC 820 to account for its investment in the SPAC Fund. The investment is included in other investments, at fair value on the consolidated balance sheets, and gains and losses (both realized and unrealized) are recognized in the statement of operations as a component of principal transactions and other revenue. Because the SPAC Fund has the attributes of investment companies as described in FASB ASC 946-15-2, the Company will estimate the fair value of its investment using the NAV per share (or its equivalent) as of the reporting date in accordance with the “practical expedient” provisions related to investments in certain entities that calculate net asset value per share (or its equivalent) included in FASB ASC 820 for all entities. See note 7. ViaNova Capital Group LLC In 2018, the Company formed a wholly - owned subsidiary, ViaNova Capital Group LLC (“ViaNova”) , for the purpose of building a residential transition loan (“ RTL ”) business. RTLs are small balance commercial loans that are secured by first lien mortgages used by professional investors and real estate developers to finance the purchase and rehabilitation of residential properties. The business of ViaNova includes buying, aggregating, and distributing these loans to produce superior risk-adjusted returns through the pursuit of opportunities overlooked by commercial banks. The Company consolidates ViaNova. On November 20, 2018, ViaNova entered into a Warehousing Credit and Security Agreement with LegacyTexas Bank (the “LegacyTexas Credit Facility” with an effective date of November 16, 2018. The LegacyTexas Credit Facility supports the buying, aggregating and distributing of residential loans performed by the business of ViaNova. As of March 31, 2019 , ViaNova has not yet acquired any assets or drawn down under t he LegacyTexas Credit Facility. See Note 16. Insurance Acquisition Corporation (the “Insurance SPAC”)  The Company is the sponsor of the Insurance SPAC, a blank check company that will seek to effect a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses (each a “Business Combination”).  On March 22, 2019, the Insurance SPAC completed the sale of 15,065,000 units (the “SPAC Units”) in its initial public offering (the “IPO”). Each Unit consists of one share of the SPAC’s Class A common stock, par value $0.0001 per share (“SPAC Common Stock”), and one-half of one warrant (each, a “SPAC Warrant”), where each whole SPAC Warrant entitles the holder to purchase one share of Common Stock for $11.50 per share. The SPAC Units were sold in the IPO at an offering price of $10.00 per SPAC Unit, for gross proceeds of $150,650 (before underwriting discounts and commissions and offering expenses). Pursuant to the underwriting agreement in the IPO, the Insurance SPAC granted the underwriters in the IPO (the “Underwriters”) a 45 -day option to purchase up to 1,965,000 additional SPAC Units solely to cover over-allotments, if any (the “Over-Allotment Option”); and on March 21, 2019, the Underwriters exercised the Over-Allotment Option in full. Immediately following the completion of the IPO, there were an aggregate of 20,653,333 shares of SPAC Common Stock issued and outstanding. If the Insurance SPAC fails to consummate a Business Combination within the first 18 months following the IPO, its corporate existence will cease except for the purposes of winding up its affairs and liquidating its assets. The Operating LLC is the manager and a member of each of two entities: Insurance Acquisition Sponsor, LLC and Dioptra Advisors, LLC (together, the “Sponsor Entities”). The Sponsor Entities purchased 375,000 of the Insurance SPAC’s placement units in a private placement that occurred simultaneously with the IPO for an aggregate purchase price of $3,750 , or $10.00 per placement unit. Each placement unit consists of one share of SPAC Common Stock and one-half of one warrant (the “Placement Warrant”). The placement units are identical to the SPAC Units sold in the IPO except (i) the shares of SPAC Common Stock issued as part of the placement units and the Placement Warrants will not be redeemable by the Insurance SPAC, (ii) the Placement Warrants may be exercised by the holders on a cashless basis, (iii) the shares of SPAC Common Stock issued as part of the placement units, together with the Placement Warrants, are entitled to certain registration rights, and (iv) for so long as they are held by the IPO underwriter, the placement units will not be exercisable more than five years following the effective date of the registration statement filed by the Insurance SPAC in connection with the IPO. Subject to certain limited exceptions, the placement units (including the underlying Placement Warrants and SPAC Common Stock and the shares of SPAC Common Stock issuable upon exercise of the Placement Warrants) will not be transferable, assignable, or salable until 30 days after the completion of our Business Combination.  The Sponsor Entities raised $2,550 from third party investors and the remaining investment in the private placement was made by the Company. The Company consolidates the Sponsor Entities and treats its investment in the Insurance SPAC as an equity method investment. The $2,550 raised from third party investors is treated as non-controlling interest. See notes 11 and 17. The proceeds from the placement units were added to the net proceeds from the IPO to be held in a trust account. If the Insurance SPAC does not complete a Business Combination within the first 18 months following the IPO, the proceeds from the sale of the Placement Units will be used to fund the redemption of the SPAC Common Stock sold as part of the Units in the IPO (subject to the requirements of applicable law) and the Placement Warrants will expire worthless. The Sponsor Entities collectively hold 5,103,333 founder shares of the Insurance SPAC. Subject to certain limited exceptions, placement units held by the Sponsor Entities will not be transferable or salable until 30 days following a Business Combination, and founder shares held by the Sponsor Entities will not be transferable or salable except (a) with respect to 20% of such shares, until consummation of a Business Combination, and (b) with respect to additional 20% tranches of such shares, when the closing price of the Common Stock exceeds $12.00 , $13.50 , $15.00 and $17.00 , respectively, for 20 out of any 30 consecutive trading days following the consummation of a Business Combination, in each case subject to certain limited exceptions. 

Net Trading

Net Trading	3 Months Ended
	Mar. 31, 2019
Net Trading [Abstract]
Net Trading	5. NET TRADING  Net trading consisted of the following in the periods presented.     NET TRADING  (Dollars in Thousands)   Three Months Ended  March 31, 2019 March 31, 2018  Net realized gains (losses) - trading inventory $ 6,310 $ 4,224  Net unrealized gains (losses) - trading inventory 559 13  Net gains and losses 6,869 4,237   Interest income-trading inventory 1,615 1,356  Interest income-receivables under resale agreements 32,232 9,072  Interest income 33,847 10,428   Interest expense-securities sold under agreements to repurchase (31,130) (8,027)  Interest expense-margin payable (857) (447)  Interest expense (31,987) (8,474)   Net trading $ 8,729 $ 6,191  Trading inventory includes investments classified as investments-trading as well as trading securities sold, not yet purchased. See note 7. See note 10 for discussion of receivables under resale agreements and securities sold under agreements to repurchase. See note 6 for discussion of margin payable.

Receivables From And Payables T

Receivables From And Payables To Brokers, Dealers, And Clearing Agencies	3 Months Ended
	Mar. 31, 2019
Receivables From And Payables To Brokers, Dealers, And Clearing Agencies [Abstract]
Receivables From And Payables To Brokers, Dealers, And Clearing Agencies	6. RECEIVABLES FROM AND PAYABLES TO BROKERS, DEALERS, AND CLEARING AGENCIES Amounts receivable from brokers, dealers, and clearing agencies consisted of the following.     RECEIVABLES FROM BROKERS, DEALERS, AND CLEARING AGENCIES  (Dollars in Thousands)   March 31, 2019 December 31, 2018  Deposits with clearing agencies $ 250 $ 250  Unsettled regular way trades, net 5,816 -  Receivables from clearing agencies 98,378 129,562  Receivables from brokers, dealers, and clearing agencies $ 104,444 $ 129,812  Amounts payable to brokers, dealers, and clearing agencies consisted of the following.      PAYABLES TO BROKERS, DEALERS, AND CLEARING AGENCIES  (Dollars in Thousands)   March 31, 2019 December 31, 2018  Unsettled regular way trades, net $ - $ 5,822  Margin payable 162,951 195,776  Payables to brokers, dealers, and clearing agencies $ 162,951 $ 201,598  Deposits with clearing agencies represent contractual amounts the Company is required to deposit with its clearing agents.  Securities transactions that settle in the regular way are recorded on the trade date, as if they had settled. The related amounts receivable and payable for unsettled securities transactions are recorded net in receivables from or payables to brokers, dealers, and clearing agencies on the Company’s consolidated balance sheets.  Receivables from clearing agencies are primarily comprised of (i) cash received by the Company upon execution of short trades that is restricted from withdrawal by the clearing agent and (ii) cash deposited with the FICC to support the Company’s General Collateral Funding (“GCF”) matched book repo business.  Margin payable represents amounts borrowed from Pershing, LLC to finance the Company’s trading portfolio. Effectively, all of the Company’s investments-trading and deposits with clearing agencies serve as collateral for the margin payable. See note 5 for interest expense incurred on margin payable.

Financial Instruments

Financial Instruments	3 Months Ended
	Mar. 31, 2019
Financial Instruments [Abstract]
Financial Instruments	7. FINANCIAL INSTRUMENTS Investments—Trading Investments-trading consisted of the following.      INVESTMENTS - TRADING  (Dollars in Thousands)   March 31, 2019 December 31, 2018  U.S. government agency MBS and CMOs $ 185,905 $ 149,651  U.S. government agency debt securities 17,027 14,915  RMBS 29 21  U.S. Treasury securities 11,439 4,099  ABS 100 100  SBA loans 11,196 31,496  Corporate bonds and redeemable preferred stock 29,156 44,507  Foreign government bonds 875 117  Municipal bonds 17,281 47,433  Certificates of deposit 1,850 302  Derivatives 10,207 8,212  Equity securities 408 382  Investments-trading $ 285,473 $ 301,235  Trading Securities Sold, Not Yet Purchased Trading securities sold, not yet purchased consisted of the following.     TRADING SECURITIES SOLD, NOT YET PURCHASED  (Dollars in Thousands)   March 31, 2019 December 31, 2018  U.S. government agency MBS and CMOs $ - $ 16  U.S. Treasury securities 42,043 70,010  Corporate bonds and redeemable preferred stock 46,530 43,957  Municipal bonds 20 20  Derivatives 9,652 6,119  Trading securities sold, not yet purchased $ 98,245 $ 120,122  The Company seeks to manage its exposure to changes in interest rates for the interest rate sensitive securities it holds by entering into offsetting short positions for similar fixed rate securities. See note 5 for realized and unrealized gains recognized on investments-trading.  Other Investments, at fair value Other investments, at fair value consisted of the following.     OTHER INVESTMENTS, AT FAIR VALUE  (Dollars in Thousands)   March 31, 2019  Amortized Cost Carrying Value Unrealized Gain / (Loss)  Equity securities $ 780 $ 1,896 $ 1,116  CLOs 3,155 2,753 (402)  CDOs 189 26 (163)  EuroDekania 4,489 1,823 (2,666)  U.S. Insurance JV 1,900 1,964 64  SPAC Fund 630 646 16  Residential loans 30 316 286  Foreign currency forward contracts - 16 16  Other investments, at fair value $ 11,173 $ 9,440 $ (1,733)     December 31, 2018  Amortized Cost Carrying Value Unrealized Gain / (Loss)  Equity securities $ 5,016 $ 6,650 $ 1,634  CLOs 3,099 2,730 (369)  CDOs 189 26 (163)  EuroDekania 4,489 1,533 (2,956)  U.S. Insurance JV 1,900 1,925 25  SPAC Fund 600 592 (8)  Residential loans 39 325 286  Foreign currency forward contracts - (13) (13)  Other investments, at fair value $ 15,332 $ 13,768 $ (1,564)

Fair Value Disclosures

Fair Value Disclosures	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Disclosures	8. FAIR VALUE DISCLOSURES Fair Value Option The Company has elected to account for certain of its other financial assets at fair value under the fair value option provisions of FASB ASC 825. The primary reason for electing the fair value option was to reduce the burden of monitoring the differences between the cost and the fair value of the Company’s investments, previously classified as available for sale securities, including the assessment as to whether the declines are temporary in nature and to further remove an element of management judgment. Such financial assets accounted for at fair value include: · securities that would otherwise qualify for available for sale treatment; · investments in equity method affiliates where the affiliate has all of the attributes set forth in FASB ASC 946-10-15-2 (commonly referred to as investment companies); and · investments in residential loans. The changes in fair value (realized and unrealized gains and losses) of these instruments for which the Company has elected the fair value option are recorded in principal transactions and other income in the consolidated statements of operations. All of the investments for which the Company has elected the fair value option are included as a component of other investments, at fair value in the consolidated balance sheets. The Company recognized net gains (losses) related to changes in fair value of investme nts of $249 and $151 during the three months ended March 31, 2019 and 2018, respectively. Fair Value Measurements In accordance with FASB ASC 820, the Company has categorized its financial instruments, based on the priority of the inputs to the valuation technique, into a three level fair value hierarchy. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (level 1 measurement) and the lowest priority to unobservable inputs (level 3 measurement). The three levels of the hierarchy under FASB ASC 820 are described below. Level 1 Financial assets and liabilities that have values based on unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. Level 2 Financial assets and liabilities that have values based on one or more of the following: 1. Quoted prices for similar assets or liabilities in active markets; 2. Quoted prices for identical or similar assets or liabilities in non-active markets; 3. Pricing models whose inputs, other than quoted prices, are observable for substantially the full term of the asset or liability; or 4. Pricing models that have inputs derived principally from or corroborated by observable market data through correlation or other means for substantially the full term of the asset or liability. Level 3 Financial assets and liabilities that have values based on prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable. These inputs reflect management’s own assumptions about the assumptions a market participant would use in pricing the asset or liability. In certain cases, the inputs used to measure fair value may fall into different levels of the valuation hierarchy. In such cases, the level in the fair value hierarchy within which the fair value measurement in its entirety falls has been determined based on the lowest level input that is significant to the fair value measurement in its entirety. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability. Both observable and unobservable inputs may be used to determine the fair value of positions that the Company has classified within the level 3 of the valuation hierarchy. As a result, the unrealized gains and losses for assets and liabilities within the level 3 of the valuation hierarchy presented in the tables below may include changes in fair value that were attributable to both observable (e.g., changes in market interest rates) and unobservable (e.g., changes in unobservable long-dated volatilities) inputs. A review of the valuation hierarchy classifications is conducted on a quarterly basis. Changes in the type of inputs may result in a reclassification for certain financial assets or liabilities . There were no transfers between level 1 and level 2 of the valuation hierarchy during the three months ended March 31, 2019 and 2018 . Reclassifications between levels of the valuation hierarchy are reported as transfers in or transfers out as of the beginning of the quarter in which reclassifications occur.  The following tables present information about the Company’s assets and liabilities measured at fair value on a recurring basis as of March 31, 2019 and December 31, 2018 , and indicate the fair value hierarchy of the valuation techniques utilized by the Company to determine such fair value.     FAIR VALUE MEASUREMENTS ON A RECURRING BASIS  March 31, 2019  (Dollars in Thousands)  Significant Significant  Quoted Prices in Other Observable Unobservable  Active Markets Inputs Inputs  Assets Fair Value (Level 1) (Level 2) (Level 3)  Investments-trading:  U.S. government agency MBS and CMOs $ 185,905 $ - $ 185,905 $ -  U.S. government agency debt securities 17,027 - 17,027 -  RMBS 29 - 29 -  U.S. Treasury securities 11,439 11,439 - -  ABS 100 - 100 -  SBA loans 11,196 - 11,196 -  Corporate bonds and redeemable preferred stock 29,156 - 29,156 -  Foreign government bonds 875 - 875 -  Municipal bonds 17,281 - 17,281 -  Certificates of deposit 1,850 - 1,850 -  Derivatives 10,207 - 10,207 -  Equity securities 408 - 408 -  Total investments - trading $ 285,473 $ 11,439 $ 274,034 $ -   Other investments, at fair value:  Equity securities $ 1,896 $ 1,043 $ 853 $ -  CLOs 2,753 - - 2,753  CDOs 26 - - 26  Residential loans 316 - 316 -  Foreign currency forward contracts 16 16 - -  5,007 $ 1,059 $ 1,169 $ 2,779  Investments measured at NAV (1) 4,433  Total other investments, at fair value $ 9,440   Liabilities  Trading securities sold, not yet purchased:  U.S. Treasury securities $ 42,043 $ 42,043 $ - $ -  Corporate bonds and redeemable preferred stock 46,530 - 46,530 -  Municipal bonds 20 - 20 -  Derivatives 9,652 - 9,652 -  Total trading securities sold, not yet purchased $ 98,245 $ 42,043 $ 56,202 $ -  (1) As a practical expedient, the Company uses NAV or its equivalent to measure the fair value of its investments in EuroDekania, the U.S. Insurance JV , and the SPAC Fund. EuroDekania invests in hybrid capital securities of European companies. The U.S. Insurance JV invests in debt issued by small and medium sized U.S. and Bermuda insurance and reinsurance companies. The SPAC Fund invests in equity securities of SPACs. According to ASC 820, these investments are not categorized within the fair value hierarchy.     FAIR VALUE MEASUREMENTS ON A RECURRING BASIS  December 31, 2018  (Dollars in Thousands)  Significant Significant  Quoted Prices in Other Observable Unobservable  Active Markets Inputs Inputs  Assets Fair Value (Level 1) (Level 2) (Level 3)  Investments-trading:  U.S. government agency MBS and CMOs $ 149,651 $ - $ 149,651 $ -  U.S. government agency debt securities 14,915 - 14,915 -  RMBS 21 - 21 -  U.S. Treasury securities 4,099 4,099 - -  ABS 100 - 100 -  SBA loans 31,496 - 31,496 -  Corporate bonds and redeemable preferred stock 44,507 - 44,507 -  Foreign government bonds 117 - 117 -  Municipal bonds 47,433 - 47,433 -  Certificates of deposit 302 - 302 -  Derivatives 8,212 - 8,212 -  Equity securities 382 - 382 -  Total investments - trading $ 301,235 $ 4,099 $ 297,136 $ -   Other investments, at fair value:  Equity Securities $ 6,650 $ 5,775 $ 875 $ -  CLOs 2,730 - - 2,730  CDOs 26 - - 26  Residential loans 325 - 325 -  Foreign currency forward contracts (13) (13) - -  9,718 $ 5,762 $ 1,200 $ 2,756  Investments measured at NAV (1) 4,050  Total other investments, at fair value $ 13,768  Liabilities  Trading securities sold, not yet purchased:  U.S. government agency MBS $ 16 $ - $ 16 $ -  U.S. Treasury securities 70,010 70,010 - -  Corporate bonds and redeemable preferred stock 43,957 - 43,957 -  Municipal bonds 20 - 20 -  Derivatives 6,119 - 6,119 -  Total trading securities sold, not yet purchased $ 120,122 $ 70,010 $ 50,112 $ -  (1) As a practical expedient, the Company uses NAV or its equivalent to measure the fair value of its investments in EuroDekania, the U.S. Insurance JV, and the SPAC Fund. EuroDekania invests in hybrid capital securities of European companies. The U.S. Insurance JV invests in debt issued by small and medium sized U.S. and Bermuda insurance and reinsurance companies. The SPAC Fund invests in equity securities of SPACs. According to ASC 820, these investments are not categorized within the fair value hierarch y. The following provides a brief description of the types of financial instruments the Company holds, the methodology for estimating fair value, and the level within the hierarchy of the estimate. The discussion that follows applies regardless of whether the instrument is included in investments-trading; other investments, at fair value; or trading securities sold, not yet purchased. U.S. Government Agency MBS and CMOs : These are securities that are generally traded over-the-counter. The Company generally values these securities using third party quotations such as unadjusted broker-dealer quoted prices or market price quotations from third party pricing services. These valuations are based on a market approach. The Company classifies the fair value of these securities within level 2 of the valuation hierarchy. U.S. Government Agency Debt Securities : Callable and non-callable U.S. government agency debt securities are measured primarily based on quoted market prices obtained from third party pricing services. Non-callable U.S. government agency debt securities are generally classified within level 1 and callable U.S. government agency debt securities are classified within level 2 of the valuation hierarchy. RMBS : The Company generally values these securities using third party quotations such as unadjusted broker-dealer quoted prices or market price quotations from third party pricing services. These valuations are based on a market approach. The Company generally classifies the fair value of these securities based on third party quotations within level 2 of the valuation hierarchy. U.S. Treasury Securities : U.S. Treasury securities include U.S. Treasury bonds and notes and the fair values of the U.S. Treasury securities are based on quoted prices or market activity in active markets. Valuation adjustments are not applied. The Company classifies the fair value of these securities within level 1 of the valuation hierarchy. CLOs, CDOs, and ABS : CLOs, CDOs, and ABS are interests in securitizations. ABS may include, but are not limited to, securities backed by auto loans, credit card receivables, or student loans. When the Company is able to obtain independent market quotations from at least two broker-dealers and when a price within the range of at least two broker-dealers is used or market price quotations from third party pricing services is used, these interests in securitizations will generally be classified within level 2 of the valuation hierarchy. These valuations are based on a market approach. The independent market quotations from broker-dealers are generally nonbinding. The Company seeks quotations from broker-dealers that historically have actively traded, monitored, issued, and been knowledgeable about the interests in securitizations. The Company generally believes to the extent that it (i) receives two quotations in a similar range from broker-dealers knowledgeable about these interests in securitizations and (ii) considers the broker-dealers gather and utilize observable market information such as new issue activity in the primary market, trading activity in the secondary market, credit spreads versus historical levels, bid-ask spreads, and price consensus among market participants and sources, then classification within level 2 of the valuation hierarchy is appropriate. In the absence of two broker-dealer market quotations, a single broker-dealer market quotation may be used without corroboration of the quote in which case the Company generally classifies the fair value within level 3 of the valuation hierarchy. If quotations are unavailable, prices observed by the Company for recently executed market transactions or valuation models prepared by the Company’s management may be used, which are based on an income approach. These models prepared by the Company’s management include estimates, and the valuations derived from them could differ materially from amounts realizable in an open market exchange. Each CLO and CDO position is evaluated independently taking into consideration available comparable market levels, underlying collateral performance and pricing, deal structures, and liquidity. Fair values based on internal valuation models prepared by the Company’s management are generally classified within level 3 of the valuation hierarchy. Establishing fair value is inherently subjective (given the volatile and sometimes illiquid markets for certain interests in securitizations) and requires management to make a number of assumptions, including assumptions about the future of interest rates, discount rates, and the timing of cash flows. The assumptions the Company applies are specific to each security. Although the Company may rely on internal calculations to compute the fair value of certain interest in securitizations, the Company requests and considers indications of fair value from third party pricing services to assist in the valuation process. SBA Loans : SBA loans include loans and SBA interest only strips. In the case of loans, the Company generally values these securities using third party quotations such as unadjusted broker-dealer quoted prices, internal valuation models using observable inputs, or market price quotations from third party pricing services. The Company generally classifies these investments within level 2 of the valuation hierarchy. These valuations are based on a market approach. SBA interest only strips do not trade in an active market with readily available prices. Accordingly, the Company generally uses valuation models to determine fair value and classifies the fair value of the SBA interest only strips within level 2 or level 3 of the valuation hierarchy depending on whether the model inputs are observable or not. Corporate Bonds and Redeemable Preferred Stock : The Company uses recently executed transactions or third party quotations from independent pricing services to arrive at the fair value of its investments in corporate bonds and redeemable preferred stock. These valuations are based on a market approach. The Company generally classifies the fair value of these bonds within level 2 of the valuation hierarchy. In instances where the fair values of securities are based on quoted prices in active markets (for example with redeemable preferred stock), the Company classifies the fair value of these securities within level 1 of the valuation hierarchy. Foreign Government Bonds : The fair value of foreign government bonds is estimated using valuations provided by third party pricing services and are valued within level 2 of the valuation hierarchy. Municipal Bonds : Municipal bonds, which include obligations of U.S. states, municipalities, and political subdivisions, primarily include bonds or notes issued by U.S. municipalities. The Company generally values these securities using third party quotations such as market price quotations from third party pricing services. The Company generally classifies the fair value of these bonds within level 2 of the valuation hierarchy. The valuations are based on a market approach. In instances where the Company is unable to obtain reliable market price quotations from third party pricing services, the Company will use its own internal valuation models. In these cases, the Company will classify such securities within level 3 of the valuation hierarchy until it is able to obtain third party pricing. Certificates of Deposit : The fair value of certificates of deposit is estimated using valuations provided by third party pricing services. Certificates of deposit are categorized in level 2 of the valuation hierarchy. Residential Loans : Management utilizes home price indices or market indications to value the residential loans. These are considered level 2 in the valuation hierarchy. Equity Securities : The fair value of equity securities that represent unrestricted investments in publicly traded companies (common or preferred shares, options, warrants, and other equity investments) are determined using the closing price of the security as of the reporting date. These are securities that are traded on a recognized liquid exchange and classified within level 1 of the valuation hierarchy. The Company may own an option or warrant where the underlying security is publicly traded but the option or warrant is not. In those cases, the Company may determine fair value using a Black-S c holes model and will generally classify this to be l evel 2 within the valuation hierarchy. The Company may own an equity investment in a publicly traded company that is restricted as to resale. In those cases, the Company may determine fair value by preparing a model. The valuation will be classified within l evel 2 if the inputs to the model are observable. Otherwise, it will be considered a l evel 3 valuation. The Company may own an equity interest in a private company. In those cases, the Company may determine fair value by preparing a model. The model may be either a market based or income - based model , whichever is considered the most appropriate in each case. The valuation will be classified within l evel 2 if the inputs to the model are observable. Otherwise, it will be considered a l evel 3 valuation . Derivatives Foreign Currency Forward Contracts Foreign currency forward contracts are exchange-traded derivatives, which transact on an exchange that is deemed to be active. The fair value of the foreign currency forward contracts is based on current quoted market prices. Valuation adjustments are not applied. These are considered level 1 in the valuation hierarchy. See note 9. TBAs and Other Forward Agency MBS Contracts The Company generally values these securities using third party quotations such as unadjusted broker-dealer quoted prices or market price quotations from third party pricing services. TBAs and other forward agency MBS contracts are generally classified within level 2 of the valuation hierarchy. If there is limited transaction activity or less transparency to observe market based inputs to valuation models, TBAs and other forward agency MBS contracts are classified in level 3 of the valuation hierarchy. U.S. government agency MBS and CMOs include TBAs and other forward agency MBS contracts. Unrealized gains on TBAs and other forward agency MBS contracts are included in investments-trading on the Company’s consolidated balance sheets and unrealized losses on TBAs and other forward agency MBS contracts are included in trading securities sold, not yet purchased on the Company’s consolidated balance sheets. See note 9. Other Extended Settlement Trades When the Company buys or sells a financial instrument that will not settle in the regular time frame, the Company will account for that purchase or sale on the settlement date rather than the trade date. In those cases, the Company accounts for the transaction between trade date and settlement date as a derivative (as either a purchase commitment or sale commitment). The Company will record an unrealized gain or unrealized loss on the derivative for the difference between the fair value of the underlying financial instrument as of the reporting date and the agreed upon transaction price. The Company will determine the fair value of the financial instrument using the methodologies described above. Level 3 Financial Assets and Liabilities Financial Instruments Measured at Fair Value on a Recurring Basis The following table presents additional information about assets measured at fair value on a recurring basis and for which the Company has utilized level 3 inputs to determine fair value.     LEVEL 3 ROLLFORWARD   Three Months Ended March 31,  2019 2018  Beginning of period $ 2,756 $ 4,511  Gains & losses (1) (33) (9)  Accretion of income (1) 106 343  Purchases - 9,600  Sales and returns of capital (50) (169)  End of period $ 2,779 $ 14,276   Change in unrealized gains / (losses) (2) $ (33) $ 147   (1) Gains and losses on and accretion of income on other investments , at fair value are recorded as a component of principal transactions and other income in the consolidated statements of operations. (2) Represents the change in unrealized gains and losses for the period included in earnings for assets held at the end of the reporting period.    The circumstances that would result in transferring certain financial instruments from level 2 to level 3 of the valuation hierarchy would typically include what the Company believes to be a decrease in the availability, utility, and reliability of observable market information such as new issue activity in the primary market, trading activity in the secondary market, credit spreads versus historical levels, bid-ask spreads, and price consensus among market participants and sources. There were no transfers between level 2 and 3 during the periods presented.  The following tables provide the quantitative information about level 3 fair value measurements as of March 31, 2019 and December 31, 2018 .        QUANTITATIVE INFORMATION ABOUT LEVEL 3 FAIR VALUE MEASUREMENTS  (Dollars in Thousands)    Significant Range of  Fair Value Valuation Unobservable Weighted Significant  March 31, 2019 Technique Inputs Average Inputs  Assets  Other investments, at fair value  CLOs $ 2,753 Discounted Cash Flow Model Yield 17.6% 15.6% - 19.3%  Duration-years 6.6 6.1 - 7.3  Default rate 2.0% 2% - 2%        QUANTITATIVE INFORMATION ABOUT LEVEL 3 FAIR VALUE MEASUREMENTS  (Dollars in Thousands)    Significant Range of  Fair Value Valuation Unobservable Weighted Significant  December 31, 2018 Technique Inputs Average Inputs  Assets  Other investments, at fair value  CLOs $ 2,730 Discounted Cash Flow Model Yield 20.0% 18.1 - 21.6%  Duration-years 6.9 6.3 - 7.5  Default rate 2.0% 2.0%   Sensitivity of Fair Value to Changes in Significant Unobservable Inputs For recurring fair value measurements categorized within level 3 of the valuation hierarchy, the sensitivity of the fair value measurement to changes in significant unobservable inputs and interrelationships between those unobservable inputs (if any) are described below. · CLOs: The Company uses a discounted cash flow model to determine the fair value of its investments in CLOs. Changes in the yield, duration, and default rate assumptions would impact the fair value determined. The longer the duration, the lower the fair value of the investment. The higher the yield, the lower the fair value of the investment. The higher the default rate, the lower the fair value of the investment. Investments in Certain Entities that Calculate NAV Per Share (or its Equivalent) The following table presents additional information about investments in certain entities that calculate NAV per share (regardless of whether the “practical expedient” provisions of FASB ASC 820 have been applied), which are measured at fair value on a recurring basis at March 31, 2019 and December 31, 2018 .       FAIR VALUE MEASUREMENTS OF INVESTMENTS IN CERTAIN ENTITIES  THAT CALCULATE NET ASSET VALUE PER SHARE (OR ITS EQUIVALENT)  (Dollars in Thousands)    Fair Value March 31, 2019 Unfunded Commitments Redemption Frequency Redemption Notice Period  Other investments, at fair value  EuroDekania (a) $ 1,823 N/A N/A N/A  U.S. Insurance JV (b) 1,964 $ 1,100 N/A N/A  SPAC Fund (c) 646 N/A Quarterly after 1 year lock up 90 days  $ 4,433    Fair Value December 31, 2018 Unfunded Commitments Redemption Frequency Redemption Notice Period  Other investments, at fair value  EuroDekania (a) $ 1,533 N/A N/A N/A  U.S. Insurance JV (b) 1,925 $ 1,100 N/A N/A  SPAC Fund (c) 592 N/A Quarterly after 1 year lock up 90 days  $ 4,050   N/A Not applicable.  (a) EuroDekania owns investments in hybrid capital securities that have attributes of debt and equity, primarily in the form of subordinated debt issued by insurance companies, banks, and bank holding companies based primarily in Western Europe; widely syndicated leveraged loans issued by European corporations; commercial mortgage backed securities (“CMBS”), including subordinated interests in first mortgage real estate loans; and RMBS and ABS backed by consumer and commercial receivables. The majority of the assets are denominated in Euros and U.K. Pounds Sterling. (b) The U.S. Insurance JV invests in debt issued by small and medium sized U.S. and Bermuda insurance and reinsurance companies. (c) The SPAC Fund invests in equity interests of SPACs.

Derivative Financial Instrument

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2019
Derivative Financial Instruments [Abstract]
Derivative Financial Instruments	9. DERIVATIVE FINANCIAL INSTRUMENTS FASB ASC 815, Derivatives and Hedging (“FASB ASC 815”) , provides for optional hedge accounting. When a derivative is deemed to be a hedge and certain documentation and effectiveness testing requirements are met, reporting entities are permitted to record all or a portion of the change in the fair value of a designated hedge as an adjustment to AOCI rather than as a gain or loss in the statements of operations. To date, the Company has not designated any derivatives as hedges under the provisions included in FASB ASC 815. All of the derivatives that the Company enters into contain master netting arrangements. If certain requirements are met, the offsetting provisions included in FASB ASC 210, Balance Sheet (“FASB ASC 210”), allow (but do not require) the reporting entity to net the asset and liability on the consolidated balance sheets. It is the Company’s policy to present the assets and liabilities on a net basis if the conditions of FASB ASC 210 are met. However, in general the Company does not enter into offsetting derivatives with the same counterparties. Therefore, in all of the periods presented, no derivatives are presented on a net basis. Derivative financial instruments are recorded at fair value. If the derivative was entered into as part of the Company’s broker-dealer operations, it will be included as a component of investments-trading or trading securities sold, not yet purchased. If it is entered into to hedge another financial instrument included in other investments, at fair value then the derivative will be included as a component of other investments, at fair value. The Company may, from time to time, enter into derivatives to manage its risk exposures arising from (i) fluctuations in foreign currency rates with respect to the Company’s investments in foreign currency denominated investments; (ii) the Company’s investments in interest sensitive investments; and (iii) the Company’s facilitation of mortgage-backed securities trading. Derivatives entered into by the Company, from time to time, may include (i) foreign currency forward contracts; (ii) purchase and sale agreements of TBAs and other forward agency MBS contracts; and (iii) other extended settlement trades. TBAs are forward contracts to purchase or sell MBS whose collateral remain “to be announced” until just prior to the trade settlement date. In addition to TBAs, the Company sometimes enters into forward purchases or sales of agency MBS where the underlying collateral has been identified. These transactions are referred to as other forward agency MBS contracts. TBAs and other forward agency MBS contracts are accounted for as derivatives by the Company under FASB ASC 815. The settlement of these transactions is not expected to have a material effect on the Company’s consolidated financial statements. In addition to TBAs and other forward agency MBS contracts as part of the Company’s broker-dealer operations, the Company may from time to time enter into other securities or loan trades that do not settle within the normal securities settlement period. In those cases, the purchase or sale of the security or loan is not recorded until the settlement date. However, from the trade date until the settlement date, the Company’s interest in the security is accounted for as a derivative as either a forward purchase commitment or forward sale commitment. Derivatives involve varying degrees of off-balance sheet risk, whereby changes in the level or volatility of interest rates or market values of the underlying financial instruments may result in changes in the value of a particular financial instrument in excess of its carrying amount. Depending on the Company’s investment strategy, realized and unrealized gains and losses are recognized in principal transactions and other income or in net trading in the Company’s consolidated statements of operations on a trade date basis. The Company may, from time to time, enter into the following derivative instruments. Foreign Currency Forward Contracts The Company invests in foreign currency denominated investments that expose it to fluctuations in foreign currency rates, and, therefore, the Company may, from time to time, hedge such exposure by using foreign currency forward contracts. The Company carries foreign currency forward contracts at fair value and includes them as a component of other investments, at fair value in the Company’s consolidated balance sheets . As of March 31, 2019 and December 31, 2018 , the Company had outstanding foreign currency forward contracts with a notional amount of 1.250 million Euros and 1.250 million Euros, respectively. EuroDollar Futures The Company invests in floating rate investments that expose it to fluctuations in interest rates and, therefore, the Company may, from time to time, hedge such exposure using EuroDollar futures. The Company carries such EuroDollar future contracts at fair value and includes them as a component of investments-trading or trading securities sold, not yet purchased in the Company’s consolidated balance sheets. A s of March 31, 2019 a nd December 31, 2018 , the Company had no outstanding EuroDollar future contracts. TBAs and Other Forward Agency MBS Contracts The Company enters into TBAs and other forward agency MBS transactions for three main reasons. (i) The Company trades U.S. government agency obligations. In connection with these activities, the Company may be required to maintain inventory in order to facilitate customer transactions. In order to mitigate exposure to market risk, the Company may enter into the purchase and sale of TBAs and other forward agency MBS contracts. (ii) The Company also enters into TBAs and other forward agency MBS contracts in order to assist clients (generally small to mid-size mortgage loan originators) in hedging the interest rate risk associated with the mortgages owned by these clients. (iii) Finally, the Company may enter into TBAs and other forward agency MBS contracts on a speculative basis. The Company carries the TBAs and other forward agency MBS contracts at fair value and includes them as a component of investments-trading or trading securities sold, not yet purchased in the Company’s consolidated balance sheets. At March 31, 2019 , the Company had open TBA and other forward MBS purchase agreements in the notional amount of $ 1,642,700 and open TBA and other forward MBS sale agreements in the notional amount of $ 1,693,890 . At December 31, 2018 , the Company had open TBA and other forward agency MBS purchase agreements in the notional amount of $1,025,850 and open TBA and other forward agency MBS sale agreements in the notional amount of $1,069,688 . Other Extended Settlement Trades When the Company buys or sells a financial instrument that will not settle in the regular time frame, the Company will account for that purchase and sale on the settlement date rather than the trade date. In those cases, the Company accounts for the transaction between trade date and settlement date as either a forward purchase commitment or a forward sale commitment, both considered derivatives. The Company will record an unrealized gain or unrealized loss on the derivative for the difference between the fair value of the underlying financial instrument as of the reporting date and the agreed upon transaction price. At March 31, 2019 and December 31, 2018 , the Company had open forward purchase commitments in the notional amount of $13,707 and $15,295 , respectively.  The following table presents the Company’s derivative financial instruments and the amount and location of the fair value (unrealized gain / (loss)) recognized in the consolidated balance sheets as of March 31, 2019 and December 31, 2018 .     DERIVATIVE FINANCIAL INSTRUMENTS-BALANCE SHEET INFORMATION  (Dollars in Thousands)   Derivative Financial Instruments Not Designated as Hedging Instruments Under FASB ASC 815 Balance Sheet Classification March 31, 2019 December 31, 2018  TBAs and other forward agency MBS Investments-trading $ 10,161 $ 8,142  Other extended settlement trades Investments-trading 46 70  Foreign currency forward contracts Other investments, at fair value 16 (13)  TBAs and other forward agency MBS Trading securities sold, not yet purchased (9,652) (6,116)  Other extended settlement trades Trading securities sold, not yet purchased - (3)  $ 571 $ 2,080  The following table presents the Company’s derivative financial instruments and the amount and location of the net gain / (loss) recognized in the consolidated statements of operations.        DERIVATIVE FINANCIAL INSTRUMENTS-STATEMENT OF OPERATIONS INFORMATION  (Dollars in Thousands)   Derivative Financial Instruments Not Designated as Hedging Instruments Under FASB ASC 815 Income Statement Classification Three Months Ended March 31, 2019 Three Months Ended March 31, 2018  Foreign currency forward contracts Revenue-principal transactions and other income $ 40 $ (19)  Other extended settlement trades Revenue-net trading (24) (10)  TBAs and other forward agency MBS Revenue-net trading 761 1,959  $ 777 $ 1,930   

Collateralized Securities Trans

Collateralized Securities Transactions	3 Months Ended
	Mar. 31, 2019
Collateralized Securities Transactions [Abstract]
Collateralized Securities Transactions	10. COLLATERALIZED SECURITIES TRANSACTIONS Matched Book Repo Business The Company enters into repurchase and reverse repurchase agreements as part of its matched book repo business. In general, the Company will lend money to a counterparty after obtaining collateral securities from that counterparty pursuant to a reverse repurchase agreement. The Company will borrow money from another counterparty using those same collateral securities pursuant to a repurchase agreement. The Company seeks to earn net interest income on these transactions. Currently, the Company categorizes its matched book repo business into two major groups: gestational repo and GCF repo. Gestational Repo For several years, the Company has operated a matched book gestational repo program. Gestational repo involves entering into repurchase and reverse repurchase agreements where the underlying collateral security represents a pool of newly issued mortgage loans. The borrowers (the reverse repurchase agreement counterparties) are generally mortgage originators. The lenders (the repurchase agreement counterparties) are a diverse group of the counterparties comprised of banks, insurance companies, and other financial institutions. The Company’s gestational repo transactions were cleared through Industrial and Commercial Bank of China (“ICBC”) through April 1, 2018. Subsequent to that date, the Company has self-cleared its gestational repo transactions. GCF Repo On October 18, 2017, the Company was notified that it had been approved as a full netting member of the FICC’s Government Securities Division. As a member of the FICC, the Company has access to the FICC’s GCF repo service that provides netting and settlement services for repurchase transactions where the underlying security is general collateral (primarily U.S. Treasuries and U.S. Agency securities). The Company began entering into matched book GCF repo transactions in November 2017. The borrowers (the reverse repurchase agreement counterparties) are a diverse group of financial institutions including hedge funds, registered investment funds, REITs, and other similar counterparties. The lender (the repurchase agreement counterparty) is primarily the FICC itself. The Company uses Bank of New York (“BONY”) as its settlement agent for its GCF repo matched book transactions. The Company is considered self-clearing for this business. In connection with the Company’s full netting membership of the FICC, the Company agreed to establish and maintain a committed line of credit in a minimum amount of $25,000 on or prior to April 30, 2018. The Company entered into the $25,000 MB LOC on April 25, 2018. The line of credit arrangement was subsequently amended. See note 16. Other Repo Transactions In addition to the Company’s matched book repo business, the Company may also enter into reverse repurchase agreements to acquire securities to cover short positions or as an investment. Additionally, the Company may enter into repurchase agreements to finance the Company’s securities positions held in inventory. These repurchase and reverse repurchase agreements are generally cleared on a bilateral or triparty basis; no clearing broker is involved. These transactions are not matched. Repo Information At March 31, 2019 and December 31, 2018 , the Company held reverse repurchase agreements of $ 4,510,389 and $ 5,171,053 , respectively, and the fair value of collateral received under reverse repurchase agreements was $4,744,785 , and $5,444,823 , respectively. As of March 31, 2019 , the reverse repurchase agreement balance was comprised of receivables collateralized by securities with 35 counterparties. As of December 31, 2018 , the reverse repurchase agreements balance was comprised of receivables collateralized by securities with 36 counterparties. At March 31, 2019 and December 31, 2018 , the Company held repurchase agreements of $ 4,560,713 and $ 5,210,587 , respectively, and the fair value of securities and cash pledged as collateral under repurchase agreements was $ 4,610,690 and $ 5,233,017 , respectively. These amounts include collateral for reverse repurchase agreements that were re-pledged as collateral for repurchase agreements. Intraday Lending Facility In conjunction with the Company’s GCF repo business, on October 19, 2018, the Company and BONY renewed an intraday lending facility. This lending facility allows for BONY to advance funds to JVB in order to facilitate the settlement of GCF repo transactions. The total committed amount at March 31, 2019 was $100,000 . Effective April 11, 2019, this commitment amount was be reduced to $75,000 . The reduction was initiated by the Company as a cost savings measure and because an intraday line of $100,000 was not deemed necessary. The termination date of the intraday lending facility is October 19, 2019. It is expected that this facility will be renewed for successive 364 -day periods provided that the Company continues its GCF repo business.  The BONY lending facility is structured so that advances are generally repaid before the end of each business day. However, if an advance is not repaid by the end of any business day, the advance is converted to an overnight loan. Intraday loans accrue interest at an annual rate of 0.12% . Interest is charged based on the number of minutes in a day the advance is outstanding. Overnight loans are charged interest at the base rate plus 3% on a daily basis. The base rate is the higher of the federal funds rate plus 0.50% or the prime rate in effect at that time. For the three months ended March 31, 2019 and 2018 , the Company received no advances under the intraday lending facility.  Concentration  In the matched book repo business, the demand for borrowed funds is generated by the reverse repurchase agreement counterparty and the supply of funds is provided by the repurchase agreement counterparty.  On the demand side, the Company does not consider its GCF repo business to be concentrated. The Company’s reverse repo counterparties are a diverse group of financial institutions. On the supply side, the Company obtains nearly all of its funds from the FICC. If the FICC were to reduce its repo lending activities or make significant adverse changes to the cost of such lending, the Company may not be able to replace the FICC funding, or if the Company does so, it may be at a higher cost of funding. Therefore, the Company considers its GCF repo business to be concentrated from the funding side of the business.  The gestational repo business has been and continues to be concentrated as to reverse repurchase counterparties. The Company conducts this business with a limited number of reverse repo counterparties. As of March 31, 2019 and December 31, 2018, the Company’s gestational reverse repurchase agreements shown in the tables below represented balances from six counterparties. The Company also has a limited number of repurchase agreement counterparties in the gestational repo business, however, it is primarily a function of the limited number of reverse repurchase agreement counterparties with whom the Company conducts this business rather than a reflection of a limited supply of funds. Therefore, the Company considers the gestational repo business to be concentrated on the demand side.  The total net revenue earned by the Company on its matched book repo business (both gestational repo and GCF repo) was $ 1,294 and $1,110 for the three months ended March 31, 2019 and 2 018, respectively.  The following tables summarize the remaining contractual maturity of the gross obligations under repurchase agreements accounted for as secured borrowings segregated by the underlying collateral pledged as of each date shown. The table reconciles the gross amounts to the net amounts presented in the statement of financial condition. All gross amounts as well as counterparty cash collateral (see note 13) are subject to master netting arrangements; however, there is no offsetting other than the balances with the FICC, as shown below.     SECURED BORROWINGS  (Dollars in Thousands)  March 31, 2019   Repurchase Agreements  Remaining Contractual Maturity of the Agreements  Collateral Type: Overnight and Continuous Up to 30 days 30 - 90 days Greater than 90 days Total  U.S. government agency MBS (GCF repo) $ 2,486,338 $ 1,726,351 $ 250,579 $ 550,866 $ 5,014,134  MBS (gestational repo) - 436,626 - - 436,626  SBA loans 11,095 - - - 11,095  $ 2,497,433 $ 2,162,977 $ 250,579 $ 550,866 $ 5,461,855   Reverse repurchase agreements with FICC netted with repurchase agreements with FICC $ (901,142)   Securities sold under agreements to repurchase $ 4,560,713   Reverse Repurchase Agreements  Remaining Contractual Maturity of the Agreements  Collateral Type: Overnight and Continuous Up to 30 days 30 - 90 days Greater than 90 days Total  U.S. government agency MBS (GCF repo) $ 450,360 $ 1,404,899 $ 2,668,661 $ 449,602 $ 4,973,522  MBS (gestational repo) - 438,009 - - 438,009  SBA loans - - - - -  $ 450,360 $ 1,842,908 $ 2,668,661 $ 449,602 $ 5,411,531   Reverse repurchase agreements with FICC netted with repurchase agreements with FICC $ (901,142)   Receivables under resale agreements $ 4,510,389        SECURED BORROWINGS  (Dollars in Thousands)  December 31, 2018   Repurchase Agreements  Remaining Contractual Maturity of the Agreements  Collateral Type: Overnight and Continuous Up to 30 days 30 - 90 days Greater than 90 days Total  U.S. government agency MBS (GCF repo) $ 7,014,758 $ 250,537 $ - $ - $ 7,265,295  MBS (gestational repo) - 287,400 100,918 - 388,318  SBA loans 18,151 - - - 18,151  $ 7,032,909 $ 537,937 $ 100,918 $ - $ 7,671,764   Reverse repurchase agreements with FICC netted with repurchase agreements with FICC $ (2,461,177)   Securities sold under agreements to repurchase $ 5,210,587   Reverse Repurchase Agreements  Remaining Contractual Maturity of the Agreements  Collateral Type: Overnight and Continuous Up to 30 days 30 - 90 days Greater than 90 days Total  U.S. government agency MBS (GCF repo) $ 10,864 $ 5,477,247 $ 598,635 $ 1,157,349 $ 7,244,095  MBS (gestational repo) - 287,209 100,926 - 388,135  SBA loans - - - - -  $ 10,864 $ 5,764,456 $ 699,561 $ 1,157,349 $ 7,632,230   Reverse repurchase agreements with FICC netted with repurchase agreements with FICC $ (2,461,177)   Receivables under resale agreements $ 5,171,053 

Investment In Equity Method Aff

Investment In Equity Method Affiliate	3 Months Ended
	Mar. 31, 2019
Investment in Equity Method Affiliate [Abstract]
Investment In Equity Method Affiliate	11. INVESTMENT IN EQUITY METHOD AFFILIATE  Equity method accounting requires that the Company record its investment in equity method affiliates on the consolidated balance sheets and recognize its share of the equity method affiliates’ net income as earnings each reporting period.  The Company has certain equity method affiliates for which it has elected the fair value option. Those investees are excluded from the table below. Those investees are included as a component of other investments, at fair value in the consolidated balance sheets. All asset management fees and gains and losses (unrealized and realized) from securities classified as other investments, at fair value in the consolidated balance sheets are recorded as a component of asset management and principal transactions and other income in the consolidated statement of operations. See note 23.  The following table summarizes the activity and earnings in the Company’s investment that is accounted for under the equity method. See note 4.      INVESTMENTS IN EQUITY METHOD AFFILIATES  (Dollars in Thousands)   Insurance  SPAC  January 1, 2019 $ -  Investments / advances 3,775  Distributions / repayments -  Earnings / (loss) realized (8)  March 31, 2019 $ 3,767 

Leases

Leases	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Leases	12. LEASES  The Company leases office space and certain computer and related equipment under noncancelable operating leases. The company determines if an arrangement is a lease at the inception date of the contract. The Company measures operating lease liabilities using an estimated incremental borrowing rate as there is no rate implicit in the Company’s operating lease arrangements. An incremental borrowing rate was calculated for each operating lease based on the term of the lease, the U.S. Treasury term interest rate, and an estimated spread to borrow on a secured basis.  The Company adopted the provisions of ASC 842 effective January 1, 2019. At adoption, the Company elected to not restate prior periods and rather re cord a cumulative effect of accounting change effective January 1, 2019. The Company recorded the following: (a) a right of use asset of $8,416 , (b) a lease commitment liability of $8,860 , (c) a reduction in retained earnings from cumulative effect of adoption of $20 , (d) an increase in other receivables of $18 , and (e) a reduction in other liabilities of $406 .  Rent expense is recognized on a straight-line basis over the lease term and is in included business development, occupancy, and equipment expense.  As of March 31, 2019, all of the leases to which the Company was a party were operating leases. The weighted average remaining term of the leases was 8.65 years. The weighted average discount rate for the leases was 5.27% . Summarized information regarding these leases is shown in the following table.     FUTURE MATURITY OF LEASE LIABILITIES  (Dollars in Thousands)   As of March 31, 2019  Lease Payments  2019 - remaining $ 1,290  2020 1,564  2021 1,108  2022 933  2023 950  Thereafter 5,077  Total 10,922  Less imputed interest (2,264)  Lease obligation $ 8,658  During the three months ended March 31, 2019, total cash payments of $286 were recorded as a reduction in the operating lease obligation. No cash payments were made to acquire right of use assets. Rent expense, net of sublease income of $65 , was $390 for the three months ended March 31, 2019.

Other Receivables, Other Assets

Other Receivables, Other Assets And Accounts Payable And Other Liabilities	3 Months Ended
	Mar. 31, 2019
Other Receivables, Other Assets And Accounts Payable And Other Liabilities [Abstract]
Other Receivables, Other Assets And Accounts Payable And Other Liabilities	13. OTHER RECEIVABLES, OTHER ASSETS, ACCOUNTS PAYABLE AND OTHER LIABILITIES  Other receivables consisted of the following at the periods presented .      OTHER RECEIVABLES  (Dollars in Thousands)   March 31, 2019 December 31, 2018  Cash collateral due from counterparties $ 5,508 $ 6,216  Asset management fees receivable 954 947  New issue and advisory fees receivable - 2,100  Accrued interest receivable and dividend receivable 1,254 2,359  Revenue share receivable 96 140  Other receivables 384 310  Other receivables $ 8,196 $ 12,072   When the Company enter s into a reverse repo, it obtain s collateral in excess of the principal amount of the reverse repo. C ollateral can be in the form of liquid securities or cash. To the extent the Company receive s cash collateral, it is included as a component of other liabilities (counterparty cash collateral in the table below) . If the value of the securities receive d as collateral increases, the Company’s reverse repo counterparties may request a return of a portion of their collateral. At times, the Company will return cash instead of securities. In those cases, the cash collateral is included as a component of other receivables.  Asset management and new issue and advisory receivables are of a routine and short-term nature. These amounts are generally accrued monthly and paid on a monthly or quarterly basis .  Accrued interest and dividends receivable represent interest and dividends accrued on the Company’s investment securities included as a component of investments-trading or other investments, at fair value. Interest payable on securities sold , not yet purchased is included as a component of accounts payable and other liabilities in the table entitled Accounts Payable and Other Liabilities below.  Revenue share receivable represents the amount due to the Company for the Company’s share of revenue generated from various entities in which the Company receives a share of the entity’s revenue. Other receivables represent other miscellaneous receivables that are of a short-term nature.  Other assets consisted of the following in the periods presented.     OTHER ASSETS  (Dollars in Thousands)   March 31, 2019 December 31, 2018  Deferred costs $ 648 $ 571  Prepaid expenses 1,037 1,009  Prepaid income taxes - 40  Deposits 681 669  Miscellaneous other assets 33 33  Furniture, equipment, and leasehold improvements, net 1,072 1,133  Intangible assets 166 166  Other assets $ 3,637 $ 3,621  Accounts payable and other liabilities consisted of the following at the periods presented.    ACCOUNTS PAYABLE AND OTHER LIABILITIES  (Dollars in Thousands)   March 31, 2019 December 31, 2018  Accounts payable $ 285 $ 359  Redeemable financial instruments accrued interest 352 714  Straight line rent payable - 405  Accrued interest payable 670 674  Accrued interest on securities sold, not yet purchased 992 1,184  Payroll taxes payable 394 721  Counterparty cash collateral 6,437 4,227  Accrued expense and other liabilities 2,710 3,168  Accounts payable and other liabilities $ 11,840 $ 11,452 Aa  The redeemable financial instruments accrued interest represents accrued interest the Company’s redeemable financial instruments. See note 1 5 . Subsequent to the adoption of ASC 842, effective January 1, 2019, the Company will no longer have straight line rent payable. See note 12.  Counterparty cash collateral represents cash collateral received from our reverse rep o counterparties . This cash is owed to the counterparty. See note 1 0 .

Variable Interest Entities

Variable Interest Entities	3 Months Ended
	Mar. 31, 2019
Variable Interest Entities [Abstract]
Variable Interest Entities	14. VARIABLE INTEREST ENTITIES  As a general matter, a reporting entity must consolidate a variable interest entity (“VIE”) when it is deemed to be the primary beneficiary. The primary beneficiary is the entity that has both (a) the power to direct the matters that most significantly impact the VIE’s financial performance and (b) a significant variable interest in the VIE.  The Company’s Principal Investing Portfolio  Included in other investments, at fair value in the consolidated balance sheets are investments in several VIEs. In each case, the Company determined it was not the primary beneficiary. The maximum potential financial statement loss the Company would incur if the VIEs were to default on all their obligations would be the loss of the carrying value of these investments as well as any future investments the Company were to make. As of March 31, 2019 , there were $1,100 of unfunded commitments to VIEs that the Company is invested in. Other than its investment in these entities, the Company did not provide financial support to these VIEs during the three months ended March 31, 2019 and 2018 and had no liabilities, contingent liabilities, or guarantees (implicit or explicit) related to these VIEs at M arch 31, 2019 and December 31, 2018 . See table below.  For each investment management contract entered into by the Company, the Company assesses whether the entity being managed is a VIE and if the Company is the primary beneficiary. Certain of the Investment Vehicles managed by the Company are VIEs. Under the current guidance of ASU 2015-12, the Company has concluded that its asset management contracts are not variable interests. Currently, the Company has no other interests in entities it manages that are considered variable interests and are considered significant. Therefore, the Company is not the primary beneficiary of any VIEs that it manages.  The Company’s Trading Portfolio  From time to time, the Company may acquire an interest in a VIE through the investments it makes as part of its trading operations, which are included as investments-trading or securities sold, not yet purchased in the consolidated balance sheets. Because of the high volume of trading activity in which the Company engages in, the Company does not perform a formal assessment of each individual investment within its trading portfolio to determine if the investee is a VIE and if the Company is a primary beneficiary. Even if the Company were to obtain a variable interest in a VIE through its trading portfolio, the Company would not be deemed to be the primary beneficiary for two main reasons: (a) the Company does not usually obtain the power to direct activities that most significantly impact any investee’s financial performance and (b) a scope exception exists within the consolidation guidance for cases where the reporting entity is a broker-dealer and any control (either as the primary beneficiary of a VIE or through a controlling interest in a voting interest entity) was deemed to be temporary. In the unlikely case that the Company obtained the power to direct activities and obtained a significant variable interest in an investee in its trading portfolio that was a VIE, any such control would be deemed to be temporary due to the rapid turnover within the Company’s trading portfolio.  The following table presents the carrying amounts of the assets in the Company’s consolidated balance sheets that relate to the Company’s variable interests in identified VIEs with the exception of (i) the two trust VIEs that hold the Company’s junior subordinated notes (see note 16) and (ii) any security that represents an interest in a VIE that is included in investments-trading or securities sold, not yet purchased in the Company’s consolidated balance sheets. The table below shows the Company’s maximum exposure to loss associated with these identified nonconsolidated VIEs in which it holds variable interests at March 31, 2019 and December 31, 2018 .    CARRYING VALUE OF VARIABLE INTERESTS IN NON-CONSOLIDATED VARIABLE INTEREST ENTITIES  (Dollars in Thousands)   As of March 31, 2019 As of December 31, 2018  Other Investments, at fair value $ 5,389 $ 5,273  Maximum e xposure $ 5,389 $ 5,273       

Redeemable Financial Instrument

Redeemable Financial Instruments	3 Months Ended
	Mar. 31, 2019
Redeemable Financial Instruments [Abstract]
Redeemable Financial Instruments	15. REDEEMABLE FINANCIAL INSTRUMENTS  Redeemable financial instruments consisted of the following in the periods presented.       REDEEMABLE FINANCIAL INSTRUMENTS  As of March 31, 2019  (Dollars in Thousands)   Outstanding Balance Accrued Interest  JKD Capital Partners I LTD $ 8,000 $ 278  DGC Family Fintech Trust / CBF 10,000 74  ViaNova Capital Group, LLC 679 -  $ 18,679 $ 352      REDEEMABLE FINANCIAL INSTRUMENTS  As of December 31, 2018  (Dollars in Thousands)   Outstanding Balance Accrued Interest  JKD Capital Partners I LTD $ 6,732 $ 676  DGC Family Fintech Trust / CBF 10,000 38  ViaNova Capital Group, LLC 716 -  $ 17,448 $ 714   Redeemable Financial Instrument – JKD Capital Partners I LTD Amendment  On October 3, 2016, the Operating LLC entered into an investment agreement (the “JKD Investment Agreement”), by and between Operating LLC and JKD Capital Partners I LTD (the “JKD Investor”), pursuant to which the JKD Investor agreed to invest up to $12,000 in the Operating LLC (the “JKD Investment”), $6,000 of which was invested upon the execution of the JKD Investment Agreement, an additional $1,000 was invested in January 2017 and an additional $1,268 was invested on January 9, 2019. The JKD Investor is owned by Jack DiMaio, the vice chairman of the Company’s board of directors and the vice chairman of the Operating LLC’s board of managers and his spouse. In exchange for the JKD Investment, the Operating LLC agreed to pay to JKD Investor during the term of the JKD Investment Agreement an amount (“JKD Investment Return”) equal to 50% of the difference between (i) the revenues generated during a quarter by the activities of the Institutional Corporate Trading Business of JVB and (ii) certain expenses incurred by such Institutional Corporate Trading Business (the “Institutional Corporate Trading Business Net Revenue”). This JKD Investment Return is recorded monthly as interest expense or (interest income) with the related accrued interest recorded in accounts payable and other accrued liabilities. If the return is negative on an individual quarter, it will reduce the balance of the JKD Investment. Payments of the JKD Investment Return are made on a quarterly basis. The term of the JKD Investment Agreement commenced on October 3, 2016 and will continue until a redemption (as described below) occurs, unless the JKD Investment Agreement is earlier terminated.  On March 6, 2019, the JKD Investor and the Operating LLC entered into an amendment to the JKD Investment Agreement (the “JKD Investment Agreement Amendment”), pursuant to which the term “JKD Investment Return” under the JKD Investment Agreement was amended as follows:  (a) during the fourth quarter of 2018, an amount equal to 42% of the difference between (i) the revenues generated during a quarter by the activities of the Institutional Corporate Trading Business of JVB and (ii) certain expenses incurred by such Institutional Corporate Trading Business (the “Institutional Corporate Trading Business Net Revenue”), and (b) commencing on January 1, 2019 and for each quarter during the remainder of the term of the JKD Investment Agreement, an amount equal to a percentage of the Institutional Corporate Trading Business Net Revenue, which percentage is based on the JKD Investor’s investment under the JKD Investment Agreement as a percentage of the total capital allocated to Institutional Corporate Trading Business of JVB .  The JKD Investor may terminate the JKD Investment Agreement (i) upon 90 days’ prior written notice to the Operating LLC if the Operating LLC or its affiliates modify any of their policies or procedures governing the operation of their businesses or change the way they operate their business and such modification has a material adverse effect on the amounts payable to the JKD Investor pursuant to the JKD Investment Agreement or (ii) upon 60 days’ prior written notice to the Operating LLC if the employment of Lester Brafman, the Company’s chief executive officer, is terminated. The Operating LLC may terminate the JKD Investment Agreement, as amended, upon 60 days’ prior written notice to the JKD Investor if Mr. DiMaio ceases to control the day-to-day operations of the JKD Investor. Upon a termination of the JKD Investment Agreement, as amended, the Operating LLC will pay to the JKD Investor an amount equal to the “Investment Balance” (as such term is defined in the JKD Investment Agreement, as amended) as of the day prior to such termination. At any time following October 3, 2019, the JKD Investor or the Operating LLC may, upon two months’ notice to the other party, cause the Operating LLC to pay a redemption to the JKD Investor in an amount equal to the Investment Balance (as such term is defined in the JKD Investment Agreement, as amended) as of the day prior to such redemption.  If the Operating LLC or JVB sells JVB’s Institutional Corporate Trading Business to any unaffiliated third party, and such sale is not part of a larger sale of all or substantially all of the assets or equity securities of the Operating LLC or JVB, the Operating LLC will pay to the JKD Investor an amount equal to 25% of the net consideration paid to the Operating LLC in connection with such sale, after deducting certain amounts and certain expenses incurred by the Operating LLC or JVB in connection with such sale.  ViaNova Capital Group LLC  On November 16, 2018, and effective as of November 19, 2018, the Operating LLC entered into an investment agreement (the “ViaNova Investment Agreement”) by and among Hancock Funding, LLC (“Hancock”), New Avenue Investments LLC (“New Avenue”), JVB, ViaNova, and the Operating LLC. Pursuant to the ViaNova Investment Agreement, Hancock, New Avenue, the Operating LLC, and JVB agreed to invest $500 , $250 , $500 and $2,750 , respectively, into ViaNova (collectively, the “ViaNova Investment”). Pursuant to the ViaNova Investment Agreement, Hancock, the Operating LLC and JVB invested their respective portions of the ViaNova Investment into ViaNova prior to the effective date of the ViaNova Investment Agreement. In February 2019, New Avenue invested $200 of its portion of the ViaNova Investment (i.e., $250), the remaining $50 is included in due from related parties on the consolidated balance sheets.  Pursuant to the ViaNova Investment Agreement, in consideration of the ViaNova Investment, once the Operating LLC is repaid $693 of funded operating costs from net revenue (as defined in the ViaNova Investment Agreement) generated directly by the activities of ViaNova’s RTL business, each party to the ViaNova Investment Agreement is entitled to receive a quarterly payment equal to the net revenue (to the extent positive) generated directly by the activities of ViaNova’s RTL business during such quarter, multiplied by a fraction, the numerator of which is equal to such party’s portion of the ViaNova Investment, the denominator is equal to the entire Via Nova Investment. 

Debt

Debt	3 Months Ended
	Mar. 31, 2019
Debt [Abstract]
Debt	16. DEBT The Company had the following debt outstanding.     DETAIL OF DEBT  (Dollars in Thousands)   Description As of March 31, 2019 As of December 31, 2018 Interest Rate Terms Interest (4) Maturity  Contingent convertible debt:  8.00% convertible senior note (the "2017 Convertible Note") $ 15,000 $ 15,000 Fixed 8.00 % March 2022 (1)  8.00% convertible senior notes (the "2013 Convertible Notes") 6,786 6,786 Fixed 8.00 % September 2019 (2)  Less unamortized debt issuance costs (910) (974)  20,876 20,812  Junior subordinated notes (3):  Alesco Capital Trust I 28,125 28,125 Variable 6.75 % July 2037  Sunset Financial Statutory Trust I 20,000 20,000 Variable 6.95 % March 2035  Less unamortized discount (25,343) (25,401)  22,782 22,724  MB Financial Bank, N.A. Credit Facility - - Variable N/A April 2021   LegacyTexas Credit Facility - - Variable N/A November 2019  Total $ 43,658 $ 43,536   (1) The holder of the 2017 Convertible Note may convert all or any part of the outstanding principal amount at any time prior to maturity into units of the Operating LLC at a conversion price of $1.45 per unit, subject to customary anti-dilution adjustments. Units of the Operating LLC not held by Cohen & Company Inc. may, with certain restrictions, be redeemed and exchanged into shares of the Common Stock on a ten -for-one basis. Therefore, the 2017 Convertible Note can be converted into Operating LLC units and then redeemed and exchanged into Common Stock at an effective conversion price of $14.50 . See note 1 8 to our Annual Report on Form 10-K for the year ended December 31, 201 8 . (2) The holders of the 2013 Convertible Notes may convert all or any part of the outstanding principal amount at any time prior to maturity into shares of the Company’s Common Stock, at a conversion price of $12.00 per share, subject to certain anti-dilution adjustments . (3) The junior subordinated notes listed represent debt the Company owes to the two trusts noted above. The total par amount owed by the Company to the trusts is $49,614 . However, the Company owns the common stock of the trusts in a total par amount of $1,489 . The Company pays interest (and at maturity, principal) to the trusts on the entire $49,614 junior notes outstanding. However, the Company receives back from the trusts the pro rata share of interest and principal on the common stock held by the Company. These trusts are VIEs and the Company does not consolidate them even though the Company holds the common stock. The Company carries the common stock on its balance sheet at a value of $0 . The junior subordinated notes are recorded at a discount to par. When factoring in the discount, the yield to maturity of the junior subordinated notes as of March 31, 2019 on a combined basis is 16.75% assuming the variable rate in effect on the last day of the reporting period remains in effect until maturity. (4) Represents the interest rate in effect as of the last day of the reporting period.  The 2013 Convertible Note s Amendment The original maturity date of the 2013 Convertible Notes was September 25, 2018. Immediately prior to maturity, the 2013 Convertible Notes were held by three holders. On September 25, 2018, the Company fully paid off one holder in the amount of $1,461 . The Company entered into amendments with the remaining two holders: the Edward Cohen IRA and the EBC 2013 Family Trust. Edward E. Cohen is the benefactor of the Edward E. Cohen IRA and is the father of Daniel G. Cohen, the p resident and c hief e xecutive of the Company’s European operations and c hairman of the Company’s board of directors. Daniel G. Cohen is a trustee of the EBC 2013 Family Trust . See note 23. Pursuant to the a mendments, (i) the maturity date of each of the outstanding 2013 Convertible Notes was extended from September 25, 2018 to September 25, 2019 and (ii) the conversion price under each of the outstanding 2013 Convertible Notes was reduced from $30.00 per share of Common Stock to $12.00 per share of Common Stock. The a mendments to the 2013 Convertible Notes each provide that, until the Company’s stockholders approve the issuance of the shares of Common Stock issuable upon conversion of the 2013 Convertible Notes for purposes of Section 713 of the NYSE American’s Company Guide, the 2013 Convertible Notes may not be converted if such conversion would result in the Company issuing a number of shares of Common Stock that, when aggregated with any shares of Common Stock previously issued in connection with any conversion under the 2013 Convertible Notes, equals or exceeds, in the aggregate, 19.99% of the outstanding Common Stock as of September 25, 2018. In addition, the a mendments to the 2013 Convertible Notes provide that (i) the Company is required to cause its stockholders to vote on a proposal (the “Stockholder Proposal”) regarding the issuance of the shares of Common Stock issuable upon conversion of the 2013 Convertible Notes for purposes of Section 713 of the NYSE American’s Company Guide at the 2019 annual meeting of the Company’s s tockholders, (ii) the Company is required to use its reasonable best efforts to solicit proxies for such stockholder approval, and (iii) the Company’s b oard of d irectors is required to recommend to the Company’s stockholders that such stockholders approve the Stockholder Proposal. MB Financial Bank, N.A. Effective on April 25, 2018, the Company, the Operating LLC, and JVB Holdings, as guarantors, and JVB, as borrower, entered into a loan agreement (the “2018 MB LOC”) with MB Financial Bank, N.A. (“MB Financial”) as lender. Pursuant to the terms of the 2018 MB LOC, MB Financial agreed to make loans (each a “Loan” and collectively, the “Loans”) at JVB’s request from time to time in the aggregate amount of up to $25,000 . The Loans (both principal and interest) are scheduled to mature and become immediately due and payable in full on April 10, 2020 . In accordance with the terms of the 2018 MB LOC, JVB paid to MB Financial a commitment fee in the amount of $250 . Loans under the 2018 MB LOC bear interest at a per annum rate equal to LIBOR plus 6.0% . As of March 31, 2019 , JVB had not made any draws against the 2018 MB LOC. The Operating LLC is required to pay an undrawn commitment fee at a per annum rate equal to 0.50% of the undrawn portion of the MB Financial’s $25,000 commitment under the 2018 MB LOC. Pursuant to the 2018 MB LOC, all Loans must be used by JVB for working capital purposes and general liquidity of JVB. Further, under the 2018 MB LOC, JVB may request a reduction of the $25,000 commitment amount in a minimum amount of $1,000 and multiples of $500 thereafter, upon not less than five days prior notice to MB Financial. On January 29, 2019, the 2018 MB LOC was restructured. The total commitment of the 2018 MB LOC was reduced from $25,000 to $7,500 and the maturity date was extended from April 10, 2020 to April 10, 2021 . The other material terms and conditions remained substantially identical. As part of the restructuring, the Company entered into a new subordinated revolving note agreement (the “2019 MB Revolver”). Under the 2019 MB Revolver, the Company can borrow up to $17,500 on a revolving basis. Borrowings under the 2019 MB Revolver must be in minimum amounts of $1,000 or any higher multiple of $500 . The 2019 MB Revolver bears interest at a per annum rate equal to LIBOR plus 6% and the Company is required to pay an undrawn commitment fee at a per annum rate equal to 0.50% per annum on any undrawn amounts. In addition, the Company will pay a commitment fee equal to 0.75% (or $131 ) on April 10, 2020. The 2019 MB Revolver matures on April 10, 2021. On January 30, 2019, JVB received approval from FINRA to treat draws under the 2019 MB Revolver as qualified subordinated debt. As such, draws are treated as an increase in net capital for purposes of FINRA Rule 15(c) 3-1. As of March 31 2019, the Company has not borrowed under the 2018 MB LOC or the 2019 MB Revolver.  LegacyTexas Bank  On November 20, 2018, ViaNova, as borrower, entered into a Warehousing Credit and Security Agreement (the “LegacyTexas Credit Facility”) with LegacyTexas Bank, as the lender, with an effective date of November 16, 2018. The LegacyTexas Credit Facility supports the buying, aggregating, and distributing of residential transition loans by ViaNova.  Pursuant to the terms of the LegacyTexas Credit Facility, LegacyTexas Bank agreed to make loans at ViaNova’s request from time to time in the aggregate amount of up to $12,500 . The loans (both principal and interest) are scheduled to mature and become immediately due and payable in full on November 15, 2019. Loans under the LegacyTexas Credit Facility will bear interest at a per annum rate equal to LIBOR (with a floor of 1.50%) plus 4.0% (for residential transition loans) or 5.0% (for aged residential transition loans). Commencing February 14, 2019, ViaNova became required to pay an undrawn commitment fee at a per annum rate equal to 0.25% of the undrawn portion of the $12,500 commitment under the LegacyTexas Credit Facility; provided, however, that such fee shall be waived for any calendar month (i) in which the used portion for such month is equal to or greater than fifty percent ( 50% ) of the $12,500 commitment amount, or (ii) the aggregate advances funded by LegacyTexas Bank for such calendar month are equal to or greater than the $12,500 commitment amount, as may be in effect from time to time. Loans under the LegacyTexas Credit Facility must be used by ViaNova to provide funding for short-term mortgages to developers for the purchase and renovation of residential 1-4 family properties or to purchase such short-term mortgages from correspondents that originate such short-term mortgages. The obligations of ViaNova under the LegacyTexas Credit Facility are secured by a lien on the mortgages financed by the LegacyTexas Credit Facility. Further, pursuant to the terms of the LegacyTexas Credit Facility, ViaNova deposited cash in an amount equal to 2% of the $12,500 commitment amount in a non-interest-bearing account with LegacyTexas Bank as additional collateral. See note 13.  See note 18 to the Company’s consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 for a discussion of the Company’s other debt.  Interest Expense, net     INTEREST EXPENSE  (Dollars in Thousands)   Three Months Ended March 31,  2019 2018  Junior subordinated notes $ 880 $ 821  2013 Convertible Notes 134 203  2017 Convertible Note 360 354  2018 MB LOC/2019 MB Revolver 92 -  LegacyTexas Credit Facility 4 -  Redeemable Financial Instrument - DGC Family Fintech Trust / CBF 148 110  Redeemable Financial Instrument - JKD Capital Partners I LTD 278 331  Redeemable Financial Instrument - ViaNova Capital Group, LLC (37) -  $ 1,859 $ 1,819   nter In

Equity

Equity	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Equity	17. EQUITY Stockholders’ Equity Common Equity : The following table reflects the activity for the three months ended March 31, 2019 related to the number of shares of unrestricted Common Stock that the Company had issued.    Common Stock  Shares  December 31, 2018 1,110,717  Vesting of shares 56,639  Shares withheld and retired for employee taxes (15,557)  Repurchase and retirement of Common Stock (7,890)  March 31, 2019 1,143,909 Series E Voting Non-Convertible Preferred Stock : Each share of the Company’s Series E Voting Non-Convertible Preferred Stock (the “Series E Preferred Stock”) has no economic rights but entitles the holders to vote the Series E Preferred Stock on all matters presented to the Company’s stockholders. For every 10 shares of Series E Preferred Stock, the holders are entitled to one vote on any such matter. Daniel G. Cohen, the Company’s chairman, is the sole holder of all 4,983,557 shares of Series E Preferred Stock outstanding as of March 31, 2019 . The Series E Preferred Stock held by Mr. Cohen gives him the same voting rights he would have if all of the Operating LLC membership units held by him were exchanged for Common Stock on a ten for one basis and effectively gives Mr. Cohen voting rights at the Company in the same proportion as his economic interest (as his membership units of the Operating LLC do not carry voting rights at the Company level). For a more detailed description of these shares see note 19 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 . Acquisition and Surrender of Additional Units of the Operating LLC, net : Effective January 1, 2011, Cohen & Company Inc. and the Operating LLC entered into a Unit Issuance and Surrender Agreement (the “UIS Agreement”) that was approved by the board of directors of Cohen & Company Inc. and the board of managers of the Operating LLC. In an effort to maintain a 1 :10 ratio of Common Stock to the number of membership units Cohen & Company Inc. holds in the Operating LLC, the UIS Agreement calls for the issuance of additional membership units of the Operating LLC to Cohen & Company Inc. when Cohen & Company Inc. issues its Common Stock to employees under existing equity compensation plans. In certain cases, the UIS Agreement calls for Cohen & Company Inc. to surrender units to the Operating LLC when certain restricted shares are forfeited by the employee or repurchased by the Company. During the three months ended March 31, 2019 , Cohen & Company Inc. received and surrendered units of the Operating LLC. The following table displays the amount of units surrendered (net of receipts) by Cohen & Company Inc.    Operating LLC  Membership Units  Units related to UIS Agreement 410,820  Units surrendered from retirement of Common Stock (78,900)  Total 331,920 The Company recognized a net increase in additional paid in capital of $133 and a net decrease in AOCI of $14 with an offsetting decrease in non-controlling interest of $119 in connection with the acquisition and surrender of additional units of the Operating LLC. The following schedule presents the effects of changes in Cohen & Company Inc.’s ownership interest in the Operating LLC on the equity attributable to Cohen & Company Inc. for the three months ended March 31, 2019 and 2018 .     Three Months Ended Three Months Ended  March 31, 2019 March 31, 2018  Net income / (loss) attributable to Cohen & Company Inc. $ (1,202) $ (1,474)  Transfers (to) from the non-controlling interest:  Increase / (decrease) in Cohen & Company Inc. paid in capital  for the acquisition / (surrender) of additional units in  consolidated subsidiary, net 133 84  Changes from net income / (loss) attributable to Cohen & Company Inc. and transfers (to) from the non-controlling interest $ (1,069) $ (1,390)  Repurchases of Shares and Retirement of Treasury Stock  On March 19, 2018 and March 17, 2017, the Company entered into letter agreements (the “2018 Letter Agreement” and the “2017 Letter Agreement,” respectively, and together, the “10b5-1 Plan”) with Sandler O’Neill & Partners, L.P. (the “Agent”). The 2017 Letter Agreement was in effect from March 17, 2017 until March 17, 2018. The 2018 Letter Agreement was in effect from March 19, 2018 until March 19, 2019, and was not renewed. Both agreements authorized the Agent to use its commercially reasonable efforts to purchase, on the Company’s behalf, up to an aggregate maximum of $2,000 of Common Stock on any day that the NYSE American Stock Exchange was open for business. Pursuant to the 10b5-1 Plan, purchases of Common Stock could be made in public and private transactions and had to comply with Rule 10b-18 under the Exchange Act. The 10b5-1 Plan was designed to comply with Rule 10b5-1 under the Exchange Act. Pursuant to the 10b5-1 Plans, the Company repurchased 7,890 shares in the open market for a total purchase price of $65 during the three months ended March 31, 2019 and 7,270 shares for a total purchase price of $71 for the three months ended March 31, 2018. The Company currently has no 10b5-1 plan in place.

Net Capital Requirements

Net Capital Requirements	3 Months Ended
	Mar. 31, 2019
Net Capital Requirements [Abstract]
Net Capital Requirements	18 . NET CAPITAL REQUIREMENTS JVB is subject to the net capital provision of Rule 15c3-1 under the Exchange Act, which requires the maintenance of minimum net capital, as defined therein. As of March 31, 2019 , JVB’s adjusted net capital was $ 51,111 , which exceeded the minimum requirements by $50,782 . CCFL, a subsidiary of the Company regulated by the FCA, is subject to the net liquid capital provision of the Financial Services and Markets Act 2000, GENPRU 2.140R to 2.1.57R, relating to financial prudence with regards to the European Investment Services Directive and the European Capital Adequacy Directive, which requires the maintenance of minimum liquid capital, as defined therein. As of March 31, 2019 , the total minimum required net liquid capital was $ 869 , and net liquid capital in CCFL was $919 , which exceeded the minimum requirements by $ 50 and was in compliance with the net liquid capital provisions. 

Earnings _ (Loss) Per Common Sh

Earnings / (Loss) Per Common Share	3 Months Ended
	Mar. 31, 2019
Earnings / (Loss) Per Common Share [Abstract]
Earnings / (Loss) Per Common Share	1 9 . EAR NINGS / (Loss) PER COMMON SHARE The following table presents a reconciliation of basic and diluted earnings / (loss) per common share for the periods indicated.       EARNINGS / (LOSS) PER COMMON SHARE  (Dollars in Thousands, except share or per share information)   Three Months Ended March 31,  2019 2018  Net income / (loss) attributable to Cohen & Company Inc. $ (1,202) $ (1,474)  Add/ (deduct): Income / (loss) attributable to non-controlling interest attributable to Operating LLC membership (1) (622) (677)  Add / (deduct): Adjustment (2) 53 7  Net income / (loss) on a fully converted basis $ (1,771) $ (2,144)   Weighted average common shares outstanding - Basic 1,133,166 1,172,476  Unrestricted Operating LLC membership units exchangeable into Cohen & Company shares (1) 532,409 532,409  Restricted units or shares - -  Weighted average common shares outstanding - Diluted (3) 1,665,575 1,704,885   Net income / (loss) per common share - Basic $ (1.06) $ (1.26)   Net income / (loss) per common share - Diluted $ (1.06) $ (1.26)  (1) The Operating LLC membership units not held by Cohen & Company Inc. (that is, those held by the non-controlling interest for the three months ended March 31, 2019 and 2018 ) may be redeemed and exchanged into shares of the Company on a ten -for-one basis. The Operating LLC membership units not held by Cohen & Company Inc. are redeemable, at the member’s option at any time, for (i) cash in an amount equal to the average of the per share closing prices of the Common Stock for the ten consecutive trading days immediately preceding the date the Company receives the member’s redemption notice, or (ii) at the Company’s option, one tenth of a share of the Common Stock, subject, in each case, to appropriate adjustment upon the occurrence of an issuance of additional shares of the Common Stock as a dividend or other distribution on the Company’s outstanding Common Stock, or a further subdivision or combination of the outstanding shares of the Common Stock. These units are not included in the computation of basic earnings per share. These units enter into the computation of diluted net income (loss) per common share when the effect is not anti-dilutive using the if-converted method. (2) An adjustment is included because the Company would have incurred a higher income tax expense or realized a higher income tax benefit, as applicable , if the Operating LLC membership units had been converted at the beginning of the period,. (3) For the three months ended March 31, 2019 , weighted average common shares outstanding excludes (i) 59,182 shares representing restricted Common Stock and restricted Operating LLC membership units, which when vested can be converted into Common Stock, (ii) 565,469 shares from the assumed conversion of the 2013 Convertible Notes, and (iii) 1,034,483 shares from the assumed conversion of the 2017 Convertible Note because the inclusion of such shares would be anti-dilutive. For the three months ended March 31, 2018 , weighted average common shares outstanding excludes (i) 26,691 shares representing restricted Common Stock , (ii) 274,917 shares from the assumed conversion of the 2013 Convertible Notes, and (iii) 1,034,483 shares from the assumed conversion of the 2017 Convertible Note because the inclusion of such shares would be anti-dilutive.

Commitments And Contingencies

Commitments And Contingencies	3 Months Ended
	Mar. 31, 2019
Commitments And Contingencies [Abstract]
Commitments And Contingencies	20. COMMITMENTS AND CONTINGENCIES Legal and Regulatory Proceedings The Company is a party to various routine legal proceedings, claims, and regulatory inquiries arising out of the ordinary course of the Company’s business. Management believes that the results of these routine legal proceedings, claims, and regulatory matters will not have a material adverse effect on the Company’s financial condition, or on the Company’s operations and cash flows. However, the Company cannot estimate the legal fees and expenses to be incurred in connection with these routine matters and, therefore, is unable to determine whether these future legal fees and expenses will have a material impact on the Company’s operations and cash flows. It is the Company’s policy to expense legal and other fees as incurred.

Segment And Geographic Informat

Segment And Geographic Information	3 Months Ended
	Mar. 31, 2019
Segment And Geographic Information [Abstract]
Segment And Geographic Information	2 1 . SEGMENT AND GEOGRAPHIC INFORMATION Segment Information The Company operates within three business segments: Capital Markets, Asset Management, and Principal Investing. See note 1. The Company’s business segment information was prepared using the following methodologies and generally represents the information that is relied upon by management in its decision making processes: (a) Revenues and expenses directly associated with each business segment are included in determining net income (loss) by segment, and (b) Indirect expenses (such as general and administrative expenses including executive and indirect overhead costs) not directly associated with specific business segments are not allocated to the business segments’ statements of operations. Accordingly, the Company presents segment information consistent with internal management reporting. See note (1) in the table below for more detail on unallocated items. The following tables present the financial information for the Company’s segments for the periods indicated.            SEGMENT INFORMATION  Statement of Operations Information  Three Months Ended March 31, 2019   Capital Asset Principal Segment Unallocated  Markets Management Investing Total (1) Total  Net trading $ 8,729 $ - $ - $ 8,729 $ - $ 8,729  Asset management - 2,002 - 2,002 - 2,002  New issue and advisory - - - - - -  Principal transactions and other income 1 97 316 414 - 414  Total revenues 8,730 2,099 316 11,145 - 11,145  Total operating expenses 7,458 1,815 100 9,373 1,835 11,208  Operating income (loss) 1,272 284 216 1,772 (1,835) (63)  Interest income (expense) 76 (63) - 13 (1,872) (1,859)  Income (loss) from equity method affiliates - - (8) (8) - (8)  Income (loss) before income taxes 1,348 221 208 1,777 (3,707) (1,930)  Income tax expense (benefit) - - - - (106) (106)  Net income (loss) 1,348 221 208 1,777 (3,601) (1,824)   Less: Net income (loss) attributable to the non-controlling interest - - - - (622) (622)  Net income (loss) attributable to Cohen & Company Inc. $ 1,348 $ 221 $ 208 $ 1,777 $ (2,979) $ (1,202)   Other statement of operations data  Depreciation and amortization (included in total operating expense) $ 5 $ 1 $ - $ 6 $ 75 $ 81            SEGMENT INFORMATION  Statement of Operations Information  Three Months Ended March 31, 2018   Capital Asset Principal Segment Unallocated  Markets Management Investing Total (1) Total  Net trading $ 6,191 $ - $ - $ 6,191 $ - $ 6,191  Asset management - 1,804 - 1,804 - 1,804  New issue and advisory 696 - - 696 - 696  Principal transactions and other income - 204 443 647 - 647  Total revenues 6,887 2,008 443 9,338 - 9,338  Total operating expenses 6,651 1,393 96 8,140 1,558 9,698  Operating income (loss) 236 615 347 1,198 (1,558) (360)  Interest expense - - - - (1,819) (1,819)  Income / (loss) from equity method affiliates - - - - - -  Income (loss) before income taxes 236 615 347 1,198 (3,377) (2,179)  Income tax expense (benefit) - - - - (28) (28)  Net income (loss) 236 615 347 1,198 (3,349) (2,151)   Less: Net income (loss) attributable to the non-controlling interest - - - - (677) (677)  Net income (loss) attributable to Cohen & Company Inc. $ 236 $ 615 $ 347 $ 1,198 $ (2,672) $ (1,474)   Other statement of operations data  Depreciation and amortization (included in total operating expense) $ 16 $ 1 $ - $ 17 $ 44 $ 61   (1) Unallocated includes certain expenses incurred by indirect overhead and support departments (such as the executive, finance, legal, information technology, human resources, risk, compliance, and other similar overhead and support departments). Some of the items not allocated include: (1) operating expenses (such as cash compensation and benefits, equity-based compensation expense, professional fees, travel and entertainment, consulting fees, and rent) related to support departments excluding certain departments that directly support the Capital Markets business segment; (2) interest expense on debt; and (3) income taxes. Management does not consider these items necessary for an understanding of the operating results of these business segments and such amounts are excluded in business segment reporting to the chief operating decision maker.      BALANCE SHEET DATA  As of March 31, 2019  (Dollars in Thousands)   Capital Asset Principal Segment Unallocated  Markets Management Investing Total (1) Total  Total Assets $ 4,922,973 $ 2,106 $ 13,233 $ 4,938,312 $ 13,015 $ 4,951,327   Included within total assets:  Goodwill (2) $ 7,937 $ 55 $ - $ 7,992 $ - $ 7,992  Intangible assets (2) $ 166 $ - $ - $ 166 $ - $ 166       BALANCE SHEET DATA  December 31, 2018  (Dollars in Thousands)   Capital Asset Principal Segment Unallocated  Markets Management Investing Total (1) Total  Total Assets $ 5,633,806 $ 2,309 $ 13,768 $ 5,649,883 $ 4,569 $ 5,654,452   Included within total assets:  Goodwill (2) $ 7,937 $ 55 $ - $ 7,992 $ - $ 7,992  Intangible assets (2) $ 166 $ - $ - $ 166 $ - $ 166  (1) Unallocated assets primarily include: (1) amounts due from related parties; (2) furniture and equipment, net; and (3) other assets that are not considered necessary for an understanding of business segment assets and such amounts are excluded in business segment reporting to the chief operating decision maker. (2) Goodwill and intangible assets are allocated to the Capital Markets and Asset Management business segments as indicated in the table above.   Geographic Information The Company conducts its business activities through offices in the following locations: (1) United States and (2) United Kingdom and Other. Total revenues by geographic area are summarized as follows.     GEOGRAPHIC DATA  (Dollars in Thousands)   Three Months Ended March 31,  2019 2018  Total Revenues:  United States $ 10,087 $ 7,902  United Kingdom & Other 1,058 1,436  Total $ 11,145 $ 9,338  Long-lived assets attributable to an individual country, other than the United States, are not material.

Supplemental Cash Flow Disclosu

Supplemental Cash Flow Disclosure	3 Months Ended
	Mar. 31, 2019
Supplemental Cash Flow Disclosure [Abstract]
Supplemental Cash Flow Disclosure	22 . SUPPLEMENTAL CASH FLOW DISCLOSURE Interest paid by the Company on its debt and redeemable financial instruments was $ 2,070 and $ 1,635 for the three months ended March 31, 2019 and 2018 , respectively. The Company paid income taxes of $ 4 and $ 0 for the three months ended March 31, 2019 and 2018 , respectively. The Company received income tax refunds of $48 and $0 for the three months ended March 31, 2019 and 2018 , respectively. For the three months ended March 31, 2019 , the Company had the following significant non-cash transactions that are not reflected on the statement of cash flows: · The Company net surrendered units of the Operating LLC . The Company recognized a net increase in additional paid-in capital of $ 133 , a net decrease of $ 14 in AOCI, and an decrease of $ 119 in non-controlling interest. See note 17. · The Company recognized an accrual of $335 in accounts payable and other accrued liabilities for dividends and distributions declared on March 6, 2019, which were paid after March 31, 2019. · On January 1, 2019, the Company recorded a right of use asset of $8,416 and a right of use liability of $8,860 , a reduction in retained earnings from cumulative effect of adoption of $20 , an increase in other receivables of $18, and a reduction in other liabilities of $406 , resulting from the adoption of ASU 2016-02. See note 3.  F or the three months ended March 31, 2018 , the Company had the following significant non-cash transactions that are not reflected on the statement of cash flows:  · The Company surrendered units of the Operating LLC pursuant to the UIS Agreement and in connection with the redemption of vested Operating LLC units by Cohen & Company Inc. The Company recognized a net increase in additional paid-in capital of $84 , a net decrease of $7 in AOCI, and a decrease of $77 in non-controlling interest. See note 17.  · The Company recognized an accrual of $342 in accounts payable and other accrued liabilities for dividends and distributions declared on March 6, 2018, which were paid after March 31, 2018.

Related Party Transactions

Related Party Transactions	3 Months Ended
	Mar. 31, 2019
Related Party Transactions [Abstract]
Related Party Transactions	23 . RELATED PARTY TRANSACTIONS The Company has identified the following related party transactions for the three months ended March 31, 2019 and 2018 . The transactions are listed by related party and, unless otherwise noted in the text of the description, the amounts are disclosed in the tables at the end of this section. A. The Bancorp, Inc. (“TBBK”) TBBK is identified as a related party because Daniel G. Cohen is chairman of TBBK. As part of the Company’s broker-dealer operations, the Company from time to time purchases securities from third parties and sells those securities to TBBK. The Company may purchase securities from TBBK and ultimately sell those securities to third parties. In either of the cases listed above, the Company includes the trading revenue earned (i.e. the gain or loss realized, or commission earned) by the Company for the entire transaction in the amounts disclosed as part of net trading in the table at the end of this section. From time to time, the Company will enter into repurchase agreements with TBBK as its counterparty. As of March 31, 2019 and December 31, 2018 , the Company had no repurchase agreements with TBBK as the counterparty . The Company incu rred interest expense related to repurchase agreements with TBBK as its counterparty in the amounts of $0 and $414 for the three months ended March 31, 2019 and 2018, respectively, which were included as a component of net trading revenue in the Company’s consolidated statements of operations. These amounts are not disclosed in the tables at the end this section. B. Cohen Bros. Financial, LLC (“CBF”) and EBC 2013 Family Trust (“EBC”) CBF has been identified as a related party because (i) CBF is a non-controlling interest holder of the Company and (ii) CBF is wholly owned by Daniel G. Cohen. EBC has been identified as a related party because Daniel G. Cohen is a trustee of EBC and has sole voting power with respect to all shares of the Company held by EBC. In September 2013, EBC, as an assignee of CBF, made a $4,000 investment in the Company. The Company issued $2,400 in principal amount of the 2013 Convertible Notes and $1,600 of Common Stock to EBC. See note 18 to the Company’s consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018. The Company incurred interest expense on this debt, which is disclosed as part of interest expense incurred in the table at the end of this section. Also, see note 16 for a description of amendments entered into related to the 2013 Convertible Notes on September 25, 2018. On September 29, 2017, CBF also invested $8,000 of the $10,000 total investment in the Company’s Redeemable Financial Instrument – DGC Family Fintech Trust / CBF. See note 15. The Company incurred interest expense on this instrument, which is disclosed as part of interest expense incurred in the table at the end of this section. See notes 15 and 16.  C. The Edward E. Cohen IRA On August 28, 2015, $4,386 in principal amount of the 2013 Convertible Notes originally issued to Mead Park Capital in September 2013 was purchased by the Edward E. Cohen IRA of which Edward E. Cohen is the benefactor. Edward E. Cohen is the father of Daniel G. Cohen. The Company incurred interest expense on this debt, which is disclosed as part of interest expense incurred in the tables at the end of this section. See note 18 to the Company’s consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018. Also, see note 16 for a description of amendments entered into related to the 2013 Convertible Notes on September 25, 2018.  D. JKD Investor The JKD Investor is an entity owned by Jack J. DiMaio, the vice chairman of the board of directors and vice chairman of the Operating LLC’s board of managers, and his spouse. On October 3, 2016, JKD Investor invested $6,000 in the Operating LLC. Additional investments were made in January 2017 and in January 2019 in the amounts of $1,000 and $1,268 , respectively. See note 15. The interest expense incurred on this investment is disclosed in the table at the end of this section.  E. DGC Family Fintech Trust  DGC Family Fintech Trust was established by Daniel G. Cohen, chairman of the Company’s board of directors and chairman of the Operating LLC board of managers. Daniel G. Cohen does not have any voting or dispositive control of securities held in the interest of the trust. The Company considers DGC Family Fintech Trust a related party because it was established by Daniel G. Cohen.  In March 2017, the 2017 Convertible Note was issued to the DGC Family Fintech Trust. The Company incurred interest expense on the 2017 Convertible Note, which is disclosed as part of interest expense incurred in the table at the end of this section.  On September 29, 2017, the DGC Family Fintech Trust also invested $2,000 of the $10,000 total investment in the Company’s Redeemable Financial Instrument – DGC Family Fintech Trust / CBF. See note 15. See note 17 to the Company’s consolidated financial statements included in the Company’s Annual Report on Form 10-K. Interest incurred on this instrument is disclosed in the tables at the end of this section.  F. Fin Tech Acquisition Corp. II I / Fin Tech Acquisition Corp. II In July 2017, the Operating LLC entered into an agreement with FinTech Acquisition Corp. II whereby the Company would provide certain accounting and administrative services. FinTech Acquisition Corp. II was considered a related party until July 2018 because Daniel G. Cohen was the chief executive and Betsy Cohen, Daniel G. Cohen’s mother, was the chairman of the board of dire c tors of FinTech Acquisition Corp. II during that time period. Income earned on this arrangement is disclosed in the tables below. The agreement terminated in July 2018. In December 2018, the Operating LLC entered into an agreement with Fin Tech Acquisition Corp. III whereby the Company will provide certain accounting and administrative services. Fin Tech Acquisition Corp. III is considered a related party because Daniel G. Cohen is the chief executive officer of FinTech Acquisition III and Betsy Cohen is the chairman of the board of directors of Fintech Acquisition Corp. III. Income earned on this arrangement is disclosed in the tables below.  G . FinTech Investor Holdings II, LLC  In July 2018, the Operating LLC acquired publicly traded shares of Fintech Acquisition Corp. II from an unrelated third party for a total purchase price of $2,513 . In connection with this purchase, the Operating LLC agreed with Fintech Investor Holdings II, LLC to not redeem these shares in advance of the merger between Fintech Acquisition Corp. II and Intermex Holdings II, LLC . FinTech Investor Holdings II, LLC is considered a related party because Daniel G. Cohen is the manager of the entity . In exchange for this agreement to not redeem these shares prior to the merger, as well as the outlay of capital to purchase the publicly traded shares of Fintech Acquisition Corp. II, the Operating LLC received unregistered, restricted shares of common stock of Fintech Acquisition Corp. II from Fintech Investor Holdings II, LLC . In connection with the merger, Fintech Acquisition Corp. II changed its name to International Money Express, Inc. The Company reco gnized net gains (losses) in principal transactions and other income of $(22) and $0 in connection with the receipt of these shares for the three months ended March 31, 2019 and 2018, respectively.  H. Duane Morris, LLP (“Duane Morris”)  Duane Morris is an international law firm and serves as legal counsel to the Company. Duane Morris is considered a related party because a partner at Duane Morris is a member of the same household as a director of the Company. Expense incurred by the Company for services provided by Duane Morris are included within professional fees and other operating expense in the consolidated income statement and are disclosed in the table below.  I. Investment Vehicle and Other  EuroDekania  EuroDekania is considered a related party because it is an equity method investment of the Company. The Company has an investment in and a management contract with EuroDekania. Income earned or loss incurred on the investment is included as part of principal transactions and other income in the tables below. Revenue earned on the management contract is included as part of asset management in the tables below. As of March 31, 2019, the Company owned 31% of the equity of EuroDekania.  SPAC Fund  The SPAC Fund is considered a related party because it is an equity method investment of the Company. The Company has an investment in and a management contract with the SPAC Fund. Income earned or loss incurred on the investment is included as part of principal transactions and other income in the tables below. Revenue earned on the management contract is included as part of asset management in the tables below. As of March 31, 2019, the Company owned 3.9% of the equity of the SPAC Fund.  U.S. Insurance JV  U.S. Insurance JV is considered a related party because it is an equity method investment of the Company. The Company has an investment in and a management contract with the U.S. Insurance JV. Income earned or loss incurred on the investment is included as part of principal transactions and other income in the tables below. Revenue earned on the management contract is included as part of asset management and are shown in the tables below. As of March 31, 2019, the Company owned 4.5% of the equity of the US Insurance JV. Insurance SPAC  The Insurance SPAC is a related party as it is an equity method investment of the Sponsor Entities, which are consolidated by the Company. As of March 31, 2019, the Sponsor Entities owned 26.8% of the equity in Insurance SPAC. Income earned, or loss incurred on equity method investments is included in the tables below. The Operating LLC and the Insurance SPAC entered into an administrative services agreement, dated March 19, 2019, pursuant to which the Operating LLC and the Insurance SPAC agreed that, commencing on the date that the Insurance SPAC’s securities were first listed on the Nasdaq Capital Market through the earlier of the Insurance SPAC’s consummation of a Business Combination and its liquidation, the Insurance SPAC will pay the Operating LLC $10 per month for certain office space, utilities, secretarial support, and administrative services. Revenue earned by the Company from the administrative services agreement is included as part of principal transactions and other income in the tables below. The Company agreed to lend the Insurance SPAC $750 for operating and acquisition related expenses. No amounts have been lent to date under this facility. See note 4. The following tables display the routine transactions recognized in the statements of operations from the identified related parties that are described above .     RELATED PARTY TRANSACTIONS  Three Months Ended March 31, 2019  (Dollars in Thousands)   Net trading Asset management Principal transactions and other income Income (loss) from equity method affiliates Professional fee and other operating Interest expense(income) incurred  CBF $ - $ - $ - $ - $ - $ 119  DGC Family Fintech Trust - - - - - 390  Duane Morris - - - - 101 -  EBC - - - - - 47  Edward E. Cohen IRA - - - - - 87  EuroDekania - 86 291 - - -  Fintech Acquisition Corp. III - - 3 - - -  Insurance SPAC - - 4 (8) - -  JKD Investor - - - - - 278  SPAC Fund - 31 24 - - -  TBBK 2 - - - - -  U.S. Insurance JV - 80 39 - - -  $ 2 $ 197 $ 361 $ (8) $ 101 $ 921      RELATED PARTY TRANSACTIONS  Three Months Ended March 31, 2018  (Dollars in Thousands)   Net trading Asset management Principal transactions and other income Income (loss) from equity method affiliates Professional fee and other operating Interest expense(income) incurred  CBF $ - $ - $ - $ - $ - $ 88  DGC Family Fintech Trust - - - - - 376  Duane Morris - - - - 208 -  EBC - - - - - 59  Edward E. Cohen IRA - - - - - 108  EuroDekania - 33 - - - -  Fintech Acquisition Corp. II - - 2 - - -  JKD Investor - - - - - 331  TBBK 11 - - - - -  $ 11 $ 33 $ 2 $ - $ 208 $ 962  The following related party transactions are non-routine and are not included in the tables above. J. Directors and Employees The Company has entered into employment agreements with Daniel G. Cohen and Joseph W. Pooler, Jr., its chief financial officer. The Company has entered into its standard indemnification agreement with each of its directors and executive officers. The Company maintains a 401(k) savings plan covering substantially all of its employees. The Company matches 50% of employee contributions for all participants not to exceed 3% of their salary. Contributions made on behalf of the Company were $91 and $61 for the three months ended March 31, 2019 and 2018 , respectively .  The Company has a sublease agreement for certain office space with Bezuco Capital, LLC. Bezuco Capital, LLC is a related party because Betsy Cohen, the mother of Daniel G. Cohen, is affiliated with Bezuco Capital, LLC. The Company received payments under this agreement. The payments are recorded as a reduction in rent expenses. This sublease agreement commenced on August 1, 2018. It has an annual term that auto-renews if not cancelled earlier. It can be cancelled by either party upon 90 days’ notice. The Company recorded a reduction in rent expense in the amount of $6 and $0 for the three months ending March 31, 2019 and 2018, respectively. The Company lease s office space from Zucker and Moore, LLC. Zucker and Moore, LLC is partially owned by Jack DiMaio , Jr., the vice chairman of the Company’s board of directors. The Company recorded $24 and $24 of rent expense for the three months ended March 31, 2019 and 2018, respectively.

Due From _ Due To Related Parti

Due From / Due To Related Parties	3 Months Ended
	Mar. 31, 2019
Due From / Due To Related Parties [Abstract]
Due From / Due To Related Parties	24 . DUE FROM / DUE TO RELATED PARTIES The following table summarizes the outstanding due from / to related parties as of each date shown. These amounts may result from normal operating advances, employee advances, or from timing differences between the transactions disclosed in note 23 and final settlement of those transactions in cash. All amounts are primarily non-interest bearing.     DUE FROM/DUE TO RELATED PARTIES  (Dollars in Thousands)   March 31, 2019 December 31, 2018  Employees & other $ 625 $ 793  Due from r elated p arties $ 625 $ 793  

Summary Of Significant Accoun_2

Summary Of Significant Accounting Policies (Policy)	3 Months Ended
	Mar. 31, 2019
Summary Of Significant Accounting Policies [Abstract]
Adoption Of New Accounting Standards	A. Adoption of New Accounting Standards  In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers ( Topic 606 ). Subsequent to that date, the FASB has issued additional ASUs clarifying certain aspects of ASU 2014-09 but they did not change the core principal of ASU 2014-09. The new guidance requires entities to recognize revenue in a way that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The Company adopted the new guidance on January 1, 2018 using the retrospective transition method. This ASU excludes from its scope revenue recognition related to items the Company records as a component of net trading and principal transactions within its consolidated statements of operations and , therefore , this ASU had no impact on these items. In terms of asset management and other revenue, the main impact of Topic 606 related to the timing of the recognition of incentive management fees in certain cases. Prior to the adoption of Topic 606, the Company would recognize incentive fees when they were fixed and determinable. Under Topic 606, the Company is required to recognize incentive fees when they are probable and there is not a significant chance of reversal in the future. For the asset management contracts in place at the time of adoption, this change in policy did not result in any actual change in revenue that had already been recognized and , therefore , there was no transition adjustment necessary.  In February 2016, the FASB issued ASU 2016-01, Financial Instruments-Overall (Subtopic 825-10) . The amendments in ASU 2016-01, among other things, require equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income; require public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; require separate presentation of financial assets and liabilities by measurement category and form of financial asset; and eliminate the requirement for public business entities to disclose the methods and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost. The Company’s adoption of the provisions of ASU 2016-01 effective January 1, 2018 did not have a n effect on the Company’s consolidated financial statements  In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). Under the new guidance (subsequently updated with ASU 2018-01, ASU 2018-10, ASU 2018-11, ASU 2018-20 and ASU 2019-01), lessees will be required to recognize the following for all leases with the exception of short-term leases: (i) a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis , and (ii) a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Lessor accounting is largely unchanged . The Company adopted the provisions of the new guidance effective January 1, 2019. The Company recorded the following: (a) a right of use asset of $8,416 , (b) a lease commitment liability of $8,860 , (c) a reduction in retained earnings from cumulative effect of adoption of $20 , (d) an increase in other receivables of $18 , and (e) a reduction in other liabilities of $406 . See note 12. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. The amendments in this ASU provide cash flow statement classification guidance on eight specific cash flow presentation issues with the objective of reducing existing diversity in practice. The Company’s adoption of the provisions of ASU 2016-15 effective January 1, 2018 did not have a n effect on the Company’s consolidated financial statements In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other than Inventory . The amendments in this ASU require an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. The amendments eliminate the exception of an intra-entity transfer of an asset other than inventory. The Company’s adoption of the provisions of ASU 2016-16 effective January 1, 2018 did not have a n effect on the Company’s consolidated financial statements In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business . The amendments in this ASU clarify the definition of a business and affect all companies and other reporting organizations that must determine whether they have acquired or sold a business. The Company’s adoption of the provisions of ASU 2017-01 effective January 1, 2018 did not have a n effect on the Company’s consolidated financial statements  In February 2017, the FASB issued ASU 2017-05 , Other Income – Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20): Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets . The amendments in this ASU clarify that a financial asset within the scope of this topic may include nonfinancial assets transferred within a legal entity to counterparty. The amendments clarify that an entity should identify each distinct nonfinancial asset or in substance nonfinancial asset promised to counterparty and derecognize each asset when counterparty obtains control of it. The Company’s adoption of the provisions of ASU 2017-05 effective January 1, 2018 did not have an effect on the Company’s consolidated financial statements.  In June 2018, the FASB issued ASU 2018-07, Compensation – Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting . The amendments in this ASU expand the scope of Topic 718, which previously only include d share-based payments to employees, to include share-based payments issued to nonemployees for goods or services. Consequently, the accounting for share-based payments to nonemployees and employees will be substantially aligned. The Company’s adoption of the provisions of ASU 2018-07 effective January 1, 2019 did not have an effect on the Company’s consolidated financial statements.  In March 2017, the FASB issued ASU 2017-08, Receivables – Nonrefundable Fees and Other Costs, Premium Amortization on Purchased Callable Debt Securitie s ( Sub-Topic 310-20 ). The amendments in this ASU shorten the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. The Company’s adoption of the provisions of ASU 2017-08 effective January 1, 2019 did not have an effect on the Company’s consolidated financial statements.  In May 2017, the FASB issued ASU 2017-09 , Compensation - Stock Compensation (Topic 718): Scope of Modification Accounting. The amendments in this ASU provide guidance on determining those changes to the terms and conditions of share-based payment awards that require an entity to apply modification accounting. The Company’s adoption of the provisions of ASU 2017-09 effective January 1, 2018 did not have an effect on the Company’s consolidated financial statements.  In August 2017, the FASB issued ASU 2017-12, Derivative and Hedging – Targeted Improvements to Accounting for Hedging Activities (Topic 815) . The amendments in this ASU refine and expand hedge accounting for both financial and commodity risks and contain provisions to create more transparency and clarify how economic results are presented. The Company’s adoption of the provisions of ASU 2017-12 effective January 1, 2019 did not have an effect on the Company’s consolidated financial statements.  In February 2018, the FASB issued ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220) : Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The amendments in this ASU provide the option to reclassify stranded tax effects within accumulated other comprehensive income (“AOCI”) to retained earnings in each period in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Act (or portion thereof) is recorded. The Company’s adoption of the provisions of ASU 2018-02 effective January 1, 2019 did not have an effect on the Company’s consolidated financial statements.
Recent Accounting Developments	B. Recent Accounting Developments  In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . The amendments in this ASU require the measurement of all expected credit losses for financial assets held at the reporting date to be based on historical experience, current conditions, and reasonable and supportable forecasts. Financial institutions and other organizations will now use forward-looking information to better inform their credit loss estimates. Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. In addition, the ASU amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. The amendments in this ASU are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted beginning after December 15, 2018, including interim periods within those fiscal years. The Company is currently evaluating the new guidance to determine the impact it may have on its consolidated financial statements.  In January 2017, the FASB issued ASU 2017-04, Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment . The amendments in this ASU eliminate Step 2 from the goodwill impairment test. The annual or interim goodwill impairment test is performed by comparing the fair value of a reporting unit with its carrying amount. An impairment charge should be recognized for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. This ASU is effective for fiscal years beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017 and should be applied on a prospective basis. The Company is currently evaluating the new guidance to determine the impact it may have on its consolidated financial statements.  In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework –Changes to the Disclosure Requirements for Fair Value Measurement. The ASU modifies the disclosure requirements in Topic 820, by removing certain disclosure requirements related to the fair value hierarchy, modifying existing disclosure requirements related to measurement uncertainty , and adding new disclosure requirements such as disclosing the changes in unrealized gains and losses for the period included in other comprehensive income for recurring level 3 fair value measurements held at the end of the reporting period and disclosing the range and weighted average of significant unobservable inputs used to develop level 3 fair value measurements. This ASU is effective for public companies for annual reporting periods and interim periods within those annual periods beginning after December 15, 2019. Early adoption is permitted. The Company is currently evaluating the new guidance to determine the impact it may have on its consolidated financial statements.  In November 2018, the FASB issued ASU 2018-18, Collaborative Arrangements (Topic 808): Clarifying the Interaction Between Topic 808 and Topic 606 . The ASU also provides more comparability in the presentation of revenue for certain transactions between collaborative arrangement participants. It accomplishes this by allowing organizations to only present units of account in collaborative arrangements that are within the scope of the revenue recognition standard together with revenue accounted for under the revenue recognition standard. The parts of the collaborative arrangement that are not in the scope of the revenue recognition standard should be presented separately from revenue accounted for under the revenue recognition. This ASU is effective for public companies for annual reporting periods and interim periods within those annual periods beginning after December 15, 2019. The Company is currently evaluating the new guidance to determine the impact it may have on its consolidated financial statements .
Fair Value Of Financial Instruments	C. Fair Value of Financial Instruments The following methods and assumptions were used by the Company in estimating the fair value of its financial instruments. These determinations were based on available market information and appropriate valuation methodologies. Considerable judgment is required to interpret market data to develop the estimates and, therefore, these estimates may not necessarily be indicative of the amount the Company could realize in a current market exchange. The use of different market assumptions and/or estimation methodologies may have a material effect on the estimated fair value amounts. Refer to note 8 for a discussion of the valuation hierarchy with respect to investments-trading; other investments, at fair value; and derivatives held by the Company.  Cash equivalents : Cash equivalents are carried at historical cost, which is assumed to approximate fair value. The estimated fair value measurement of cash equivalents is classified within level 1 of the valuation hierarchy . Investments-trading : These amounts are carried at fair value. The fair value is based on either quoted market prices of an active exchange, independent broker market quotations, market price quotations from third party pricing services, or valuation models when quotations are not available. Other investments, at fair value : These amounts are carried at fair value. The fair value is based on quoted market prices of an active exchange, independent broker market quotations, or valuation models when quotations are not available. In the case of investments in alternative investment funds, fair value is generally based on the reported net asset value of the underlying fund. Receivables under resale agreements : Receivables under resale agreements are carried at their contracted resale price, have short-term maturities, and are repriced frequently or bear market interest rates and, accordingly, these contracts are at amounts that approximate fair value. The estimated fair value measurements of receivables under resale agreements are based on observations of actual market activity and are generally classified within level 2 of the valuation hierarchy . Trading securities sold, not yet purchased : These amounts are carried at fair value. The fair value is based on quoted market prices of an active exchange, independent market quotations, market price quotations from third party pricing services, or valuation models when quotations are not available. Securities sold under agreements to repurchase : The liabilities for securities sold under agreements to repurchase are carried at their contracted repurchase price, have short-term maturities, and are repriced frequently with amounts normally due in one month or less and, accordingly, these contracts are carried at amounts that approximate fair value. The estimated fair value measurements of securities sold under agreements to repurchase are based on observations of actual market activity and are generally classified within level 2 of the valuation hierarchy . Redeemable financial instruments : The liabilities for redeemable financial instruments are carried at their redemption value, which approximates fair value. The estimated fair value measurement of the redeemable financial instruments is classified within level 3 of the valuation hierarchy . Debt : These amounts are carried at outstanding principal less unamortized discount and deferred financing costs. However, a substantial portion of the debt was assumed in the Merger and recorded at fair value as of that da te. As of March 31, 2019, and December 31, 2018 , the fair value of the Company’s debt was estimated to be $51,181 and $50,159 , respectively. The estimated fair value measurements of the debt are generally based on discounted cash flow models prepared by the Company’s management primarily using discount rates for similar instruments issued to companies with similar credit risks to the Company and are generally classified within level 3 of the value hierarchy. Derivatives : These amounts are carried at fair value. Derivatives may be included as a component of investments-trading; trading securities sold, not yet purchased; and other investments, at fair value. See notes 8 and 9 . The fair value is generally based on quoted market prices on an exchange that is deemed to be active for derivative instruments such as foreign currency forward contracts and Eurodollar futures. For derivative instruments, such as TBAs and other extended settlement trades, the fair value is generally based on market price quotations from third party pricing services. 

Net Trading (Tables)

Net Trading (Tables)	3 Months Ended
	Mar. 31, 2019
Net Trading [Abstract]
Schedule Of Net Trading	  NET TRADING  (Dollars in Thousands)   Three Months Ended  March 31, 2019 March 31, 2018  Net realized gains (losses) - trading inventory $ 6,310 $ 4,224  Net unrealized gains (losses) - trading inventory 559 13  Net gains and losses 6,869 4,237   Interest income-trading inventory 1,615 1,356  Interest income-receivables under resale agreements 32,232 9,072  Interest income 33,847 10,428   Interest expense-securities sold under agreements to repurchase (31,130) (8,027)  Interest expense-margin payable (857) (447)  Interest expense (31,987) (8,474)   Net trading $ 8,729 $ 6,191 

Receivables From And Payables_2

Receivables From And Payables To Brokers, Dealers, And Clearing Agencies (Tables)	3 Months Ended
	Mar. 31, 2019
Receivables From And Payables To Brokers, Dealers, And Clearing Agencies [Abstract]
Schedule Of Due To (From) Broker-Dealers And Clearing Organizations	Amounts receivable from brokers, dealers, and clearing agencies consisted of the following.     RECEIVABLES FROM BROKERS, DEALERS, AND CLEARING AGENCIES  (Dollars in Thousands)   March 31, 2019 December 31, 2018  Deposits with clearing agencies $ 250 $ 250  Unsettled regular way trades, net 5,816 -  Receivables from clearing agencies 98,378 129,562  Receivables from brokers, dealers, and clearing agencies $ 104,444 $ 129,812  Amounts payable to brokers, dealers, and clearing agencies consisted of the following.      PAYABLES TO BROKERS, DEALERS, AND CLEARING AGENCIES  (Dollars in Thousands)   March 31, 2019 December 31, 2018  Unsettled regular way trades, net $ - $ 5,822  Margin payable 162,951 195,776  Payables to brokers, dealers, and clearing agencies $ 162,951 $ 201,598 

Financial Instruments (Tables)

Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2019
Financial Instruments [Abstract]
Schedule Of Trading Securities	     INVESTMENTS - TRADING  (Dollars in Thousands)   March 31, 2019 December 31, 2018  U.S. government agency MBS and CMOs $ 185,905 $ 149,651  U.S. government agency debt securities 17,027 14,915  RMBS 29 21  U.S. Treasury securities 11,439 4,099  ABS 100 100  SBA loans 11,196 31,496  Corporate bonds and redeemable preferred stock 29,156 44,507  Foreign government bonds 875 117  Municipal bonds 17,281 47,433  Certificates of deposit 1,850 302  Derivatives 10,207 8,212  Equity securities 408 382  Investments-trading $ 285,473 $ 301,235 
Schedule Of Trading Securities Sold, Not Yet Purchased	   TRADING SECURITIES SOLD, NOT YET PURCHASED  (Dollars in Thousands)   March 31, 2019 December 31, 2018  U.S. government agency MBS and CMOs $ - $ 16  U.S. Treasury securities 42,043 70,010  Corporate bonds and redeemable preferred stock 46,530 43,957  Municipal bonds 20 20  Derivatives 9,652 6,119  Trading securities sold, not yet purchased $ 98,245 $ 120,122 
Schedule Of Other Investments	   OTHER INVESTMENTS, AT FAIR VALUE  (Dollars in Thousands)   March 31, 2019  Amortized Cost Carrying Value Unrealized Gain / (Loss)  Equity securities $ 780 $ 1,896 $ 1,116  CLOs 3,155 2,753 (402)  CDOs 189 26 (163)  EuroDekania 4,489 1,823 (2,666)  U.S. Insurance JV 1,900 1,964 64  SPAC Fund 630 646 16  Residential loans 30 316 286  Foreign currency forward contracts - 16 16  Other investments, at fair value $ 11,173 $ 9,440 $ (1,733)     December 31, 2018  Amortized Cost Carrying Value Unrealized Gain / (Loss)  Equity securities $ 5,016 $ 6,650 $ 1,634  CLOs 3,099 2,730 (369)  CDOs 189 26 (163)  EuroDekania 4,489 1,533 (2,956)  U.S. Insurance JV 1,900 1,925 25  SPAC Fund 600 592 (8)  Residential loans 39 325 286  Foreign currency forward contracts - (13) (13)  Other investments, at fair value $ 15,332 $ 13,768 $ (1,564) 

Fair Value Disclosures (Tables)

Fair Value Disclosures (Tables)	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis	     FAIR VALUE MEASUREMENTS ON A RECURRING BASIS  March 31, 2019  (Dollars in Thousands)  Significant Significant  Quoted Prices in Other Observable Unobservable  Active Markets Inputs Inputs  Assets Fair Value (Level 1) (Level 2) (Level 3)  Investments-trading:  U.S. government agency MBS and CMOs $ 185,905 $ - $ 185,905 $ -  U.S. government agency debt securities 17,027 - 17,027 -  RMBS 29 - 29 -  U.S. Treasury securities 11,439 11,439 - -  ABS 100 - 100 -  SBA loans 11,196 - 11,196 -  Corporate bonds and redeemable preferred stock 29,156 - 29,156 -  Foreign government bonds 875 - 875 -  Municipal bonds 17,281 - 17,281 -  Certificates of deposit 1,850 - 1,850 -  Derivatives 10,207 - 10,207 -  Equity securities 408 - 408 -  Total investments - trading $ 285,473 $ 11,439 $ 274,034 $ -   Other investments, at fair value:  Equity securities $ 1,896 $ 1,043 $ 853 $ -  CLOs 2,753 - - 2,753  CDOs 26 - - 26  Residential loans 316 - 316 -  Foreign currency forward contracts 16 16 - -  5,007 $ 1,059 $ 1,169 $ 2,779  Investments measured at NAV (1) 4,433  Total other investments, at fair value $ 9,440   Liabilities  Trading securities sold, not yet purchased:  U.S. Treasury securities $ 42,043 $ 42,043 $ - $ -  Corporate bonds and redeemable preferred stock 46,530 - 46,530 -  Municipal bonds 20 - 20 -  Derivatives 9,652 - 9,652 -  Total trading securities sold, not yet purchased $ 98,245 $ 42,043 $ 56,202 $ -  (1) As a practical expedient, the Company uses NAV or its equivalent to measure the fair value of its investments in EuroDekania, the U.S. Insurance JV , and the SPAC Fund. EuroDekania invests in hybrid capital securities of European companies. The U.S. Insurance JV invests in debt issued by small and medium sized U.S. and Bermuda insurance and reinsurance companies. The SPAC Fund invests in equity securities of SPACs. According to ASC 820, these investments are not categorized within the fair value hierarchy.     FAIR VALUE MEASUREMENTS ON A RECURRING BASIS  December 31, 2018  (Dollars in Thousands)  Significant Significant  Quoted Prices in Other Observable Unobservable  Active Markets Inputs Inputs  Assets Fair Value (Level 1) (Level 2) (Level 3)  Investments-trading:  U.S. government agency MBS and CMOs $ 149,651 $ - $ 149,651 $ -  U.S. government agency debt securities 14,915 - 14,915 -  RMBS 21 - 21 -  U.S. Treasury securities 4,099 4,099 - -  ABS 100 - 100 -  SBA loans 31,496 - 31,496 -  Corporate bonds and redeemable preferred stock 44,507 - 44,507 -  Foreign government bonds 117 - 117 -  Municipal bonds 47,433 - 47,433 -  Certificates of deposit 302 - 302 -  Derivatives 8,212 - 8,212 -  Equity securities 382 - 382 -  Total investments - trading $ 301,235 $ 4,099 $ 297,136 $ -   Other investments, at fair value:  Equity Securities $ 6,650 $ 5,775 $ 875 $ -  CLOs 2,730 - - 2,730  CDOs 26 - - 26  Residential loans 325 - 325 -  Foreign currency forward contracts (13) (13) - -  9,718 $ 5,762 $ 1,200 $ 2,756  Investments measured at NAV (1) 4,050  Total other investments, at fair value $ 13,768  Liabilities  Trading securities sold, not yet purchased:  U.S. government agency MBS $ 16 $ - $ 16 $ -  U.S. Treasury securities 70,010 70,010 - -  Corporate bonds and redeemable preferred stock 43,957 - 43,957 -  Municipal bonds 20 - 20 -  Derivatives 6,119 - 6,119 -  Total trading securities sold, not yet purchased $ 120,122 $ 70,010 $ 50,112 $ -  (1) As a practical expedient, the Company uses NAV or its equivalent to measure the fair value of its investments in EuroDekania, the U.S. Insurance JV, and the SPAC Fund. EuroDekania invests in hybrid capital securities of European companies. The U.S. Insurance JV invests in debt issued by small and medium sized U.S. and Bermuda insurance and reinsurance companies. The SPAC Fund invests in equity securities of SPACs. According to ASC 820, these investments are not categorized within the fair value hierarch y.
Schedule Of Assets And Liabilities Measured With Level 3 Inputs	   LEVEL 3 ROLLFORWARD   Three Months Ended March 31,  2019 2018  Beginning of period $ 2,756 $ 4,511  Gains & losses (1) (33) (9)  Accretion of income (1) 106 343  Purchases - 9,600  Sales and returns of capital (50) (169)  End of period $ 2,779 $ 14,276   Change in unrealized gains / (losses) (2) $ (33) $ 147   (1) Gains and losses on and accretion of income on other investments , at fair value are recorded as a component of principal transactions and other income in the consolidated statements of operations. (2) Represents the change in unrealized gains and losses for the period included in earnings for assets held at the end of the reporting period.   
Quantitative Information About Level 3 Fair Value Measurements	       QUANTITATIVE INFORMATION ABOUT LEVEL 3 FAIR VALUE MEASUREMENTS  (Dollars in Thousands)    Significant Range of  Fair Value Valuation Unobservable Weighted Significant  March 31, 2019 Technique Inputs Average Inputs  Assets  Other investments, at fair value  CLOs $ 2,753 Discounted Cash Flow Model Yield 17.6% 15.6% - 19.3%  Duration-years 6.6 6.1 - 7.3  Default rate 2.0% 2% - 2%        QUANTITATIVE INFORMATION ABOUT LEVEL 3 FAIR VALUE MEASUREMENTS  (Dollars in Thousands)    Significant Range of  Fair Value Valuation Unobservable Weighted Significant  December 31, 2018 Technique Inputs Average Inputs  Assets  Other investments, at fair value  CLOs $ 2,730 Discounted Cash Flow Model Yield 20.0% 18.1 - 21.6%  Duration-years 6.9 6.3 - 7.5  Default rate 2.0% 2.0%   
Fair Value, Investments, Entities That Calculate Net Asset Value Per Share	    FAIR VALUE MEASUREMENTS OF INVESTMENTS IN CERTAIN ENTITIES  THAT CALCULATE NET ASSET VALUE PER SHARE (OR ITS EQUIVALENT)  (Dollars in Thousands)    Fair Value March 31, 2019 Unfunded Commitments Redemption Frequency Redemption Notice Period  Other investments, at fair value  EuroDekania (a) $ 1,823 N/A N/A N/A  U.S. Insurance JV (b) 1,964 $ 1,100 N/A N/A  SPAC Fund (c) 646 N/A Quarterly after 1 year lock up 90 days  $ 4,433    Fair Value December 31, 2018 Unfunded Commitments Redemption Frequency Redemption Notice Period  Other investments, at fair value  EuroDekania (a) $ 1,533 N/A N/A N/A  U.S. Insurance JV (b) 1,925 $ 1,100 N/A N/A  SPAC Fund (c) 592 N/A Quarterly after 1 year lock up 90 days  $ 4,050   N/A Not applicable.  (a) EuroDekania owns investments in hybrid capital securities that have attributes of debt and equity, primarily in the form of subordinated debt issued by insurance companies, banks, and bank holding companies based primarily in Western Europe; widely syndicated leveraged loans issued by European corporations; commercial mortgage backed securities (“CMBS”), including subordinated interests in first mortgage real estate loans; and RMBS and ABS backed by consumer and commercial receivables. The majority of the assets are denominated in Euros and U.K. Pounds Sterling. (b) The U.S. Insurance JV invests in debt issued by small and medium sized U.S. and Bermuda insurance and reinsurance companies. (c) The SPAC Fund invests in equity interests of SPACs.

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2019
Derivative Financial Instruments [Abstract]
Balance Sheet Information	   DERIVATIVE FINANCIAL INSTRUMENTS-BALANCE SHEET INFORMATION  (Dollars in Thousands)   Derivative Financial Instruments Not Designated as Hedging Instruments Under FASB ASC 815 Balance Sheet Classification March 31, 2019 December 31, 2018  TBAs and other forward agency MBS Investments-trading $ 10,161 $ 8,142  Other extended settlement trades Investments-trading 46 70  Foreign currency forward contracts Other investments, at fair value 16 (13)  TBAs and other forward agency MBS Trading securities sold, not yet purchased (9,652) (6,116)  Other extended settlement trades Trading securities sold, not yet purchased - (3)  $ 571 $ 2,080  
Statement Of Operations Information	     DERIVATIVE FINANCIAL INSTRUMENTS-STATEMENT OF OPERATIONS INFORMATION  (Dollars in Thousands)   Derivative Financial Instruments Not Designated as Hedging Instruments Under FASB ASC 815 Income Statement Classification Three Months Ended March 31, 2019 Three Months Ended March 31, 2018  Foreign currency forward contracts Revenue-principal transactions and other income $ 40 $ (19)  Other extended settlement trades Revenue-net trading (24) (10)  TBAs and other forward agency MBS Revenue-net trading 761 1,959  $ 777 $ 1,930   

Collateralized Securities Tra_2

Collateralized Securities Transactions (Tables)	3 Months Ended
	Mar. 31, 2019
Collateralized Securities Transactions [Abstract]
Schedule Of Repurchase Agreements Accounted For As Secured Borrowings	     SECURED BORROWINGS  (Dollars in Thousands)  March 31, 2019   Repurchase Agreements  Remaining Contractual Maturity of the Agreements  Collateral Type: Overnight and Continuous Up to 30 days 30 - 90 days Greater than 90 days Total  U.S. government agency MBS (GCF repo) $ 2,486,338 $ 1,726,351 $ 250,579 $ 550,866 $ 5,014,134  MBS (gestational repo) - 436,626 - - 436,626  SBA loans 11,095 - - - 11,095  $ 2,497,433 $ 2,162,977 $ 250,579 $ 550,866 $ 5,461,855   Reverse repurchase agreements with FICC netted with repurchase agreements with FICC $ (901,142)   Securities sold under agreements to repurchase $ 4,560,713   Reverse Repurchase Agreements  Remaining Contractual Maturity of the Agreements  Collateral Type: Overnight and Continuous Up to 30 days 30 - 90 days Greater than 90 days Total  U.S. government agency MBS (GCF repo) $ 450,360 $ 1,404,899 $ 2,668,661 $ 449,602 $ 4,973,522  MBS (gestational repo) - 438,009 - - 438,009  SBA loans - - - - -  $ 450,360 $ 1,842,908 $ 2,668,661 $ 449,602 $ 5,411,531   Reverse repurchase agreements with FICC netted with repurchase agreements with FICC $ (901,142)   Receivables under resale agreements $ 4,510,389        SECURED BORROWINGS  (Dollars in Thousands)  December 31, 2018   Repurchase Agreements  Remaining Contractual Maturity of the Agreements  Collateral Type: Overnight and Continuous Up to 30 days 30 - 90 days Greater than 90 days Total  U.S. government agency MBS (GCF repo) $ 7,014,758 $ 250,537 $ - $ - $ 7,265,295  MBS (gestational repo) - 287,400 100,918 - 388,318  SBA loans 18,151 - - - 18,151  $ 7,032,909 $ 537,937 $ 100,918 $ - $ 7,671,764   Reverse repurchase agreements with FICC netted with repurchase agreements with FICC $ (2,461,177)   Securities sold under agreements to repurchase $ 5,210,587   Reverse Repurchase Agreements  Remaining Contractual Maturity of the Agreements  Collateral Type: Overnight and Continuous Up to 30 days 30 - 90 days Greater than 90 days Total  U.S. government agency MBS (GCF repo) $ 10,864 $ 5,477,247 $ 598,635 $ 1,157,349 $ 7,244,095  MBS (gestational repo) - 287,209 100,926 - 388,135  SBA loans - - - - -  $ 10,864 $ 5,764,456 $ 699,561 $ 1,157,349 $ 7,632,230   Reverse repurchase agreements with FICC netted with repurchase agreements with FICC $ (2,461,177)   Receivables under resale agreements $ 5,171,053 

Investment In Equity Method A_2

Investment In Equity Method Affiliate (Tables)	3 Months Ended
	Mar. 31, 2019
Investment in Equity Method Affiliate [Abstract]
Schedule Of Investments In Equity Method Affiliates	   INVESTMENTS IN EQUITY METHOD AFFILIATES  (Dollars in Thousands)   Insurance  SPAC  January 1, 2019 $ -  Investments / advances 3,775  Distributions / repayments -  Earnings / (loss) realized (8)  March 31, 2019 $ 3,767 

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Schedule Of Future Maturity Of Lease Liabilities	   FUTURE MATURITY OF LEASE LIABILITIES  (Dollars in Thousands)   As of March 31, 2019  Lease Payments  2019 - remaining $ 1,290  2020 1,564  2021 1,108  2022 933  2023 950  Thereafter 5,077  Total 10,922  Less imputed interest (2,264)  Lease obligation $ 8,658 

Other Assets And Accounts Payab

Other Assets And Accounts Payable And Other Liabilities (Tables)	3 Months Ended
	Mar. 31, 2019
Other Receivables, Other Assets And Accounts Payable And Other Liabilities [Abstract]
Schedule Of Other Assets	   OTHER ASSETS  (Dollars in Thousands)   March 31, 2019 December 31, 2018  Deferred costs $ 648 $ 571  Prepaid expenses 1,037 1,009  Prepaid income taxes - 40  Deposits 681 669  Miscellaneous other assets 33 33  Furniture, equipment, and leasehold improvements, net 1,072 1,133  Intangible assets 166 166  Other assets $ 3,637 $ 3,621 
Schedule Of Accounts Payable And Other Liabilities	   ACCOUNTS PAYABLE AND OTHER LIABILITIES  (Dollars in Thousands)   March 31, 2019 December 31, 2018  Accounts payable $ 285 $ 359  Redeemable financial instruments accrued interest 352 714  Straight line rent payable - 405  Accrued interest payable 670 674  Accrued interest on securities sold, not yet purchased 992 1,184  Payroll taxes payable 394 721  Counterparty cash collateral 6,437 4,227  Accrued expense and other liabilities 2,710 3,168  Accounts payable and other liabilities $ 11,840 $ 11,452 Aa  The redeemable financial instruments accrued interest represents accrued interest the Company’s redeemable financial instruments. See note 1 5 . Subsequent to the adoption of ASC 842, effective January 1, 2019, the Company will no longer have straight line rent payable. See note 12.  Counterparty cash collateral represents cash collateral received from our reverse rep o counterparties . This cash is owed to the counterparty. See note 1 0 .

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	3 Months Ended
	Mar. 31, 2019
Variable Interest Entities [Abstract]
Schedule Of Variable Interest Entities	   CARRYING VALUE OF VARIABLE INTERESTS IN NON-CONSOLIDATED VARIABLE INTEREST ENTITIES  (Dollars in Thousands)   As of March 31, 2019 As of December 31, 2018  Other Investments, at fair value $ 5,389 $ 5,273  Maximum e xposure $ 5,389 $ 5,273  

Redeemable Financial Instrume_2

Redeemable Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2019
Redeemable Financial Instruments [Abstract]
Schedule Of Redeemable Financial Instruments	    REDEEMABLE FINANCIAL INSTRUMENTS  As of March 31, 2019  (Dollars in Thousands)   Outstanding Balance Accrued Interest  JKD Capital Partners I LTD $ 8,000 $ 278  DGC Family Fintech Trust / CBF 10,000 74  ViaNova Capital Group, LLC 679 -  $ 18,679 $ 352      REDEEMABLE FINANCIAL INSTRUMENTS  As of December 31, 2018  (Dollars in Thousands)   Outstanding Balance Accrued Interest  JKD Capital Partners I LTD $ 6,732 $ 676  DGC Family Fintech Trust / CBF 10,000 38  ViaNova Capital Group, LLC 716 -  $ 17,448 $ 714  

Debt (Tables)

Debt (Tables)	3 Months Ended
	Mar. 31, 2019
Debt [Abstract]
Debt Outstanding	   DETAIL OF DEBT  (Dollars in Thousands)   Description As of March 31, 2019 As of December 31, 2018 Interest Rate Terms Interest (4) Maturity  Contingent convertible debt:  8.00% convertible senior note (the "2017 Convertible Note") $ 15,000 $ 15,000 Fixed 8.00 % March 2022 (1)  8.00% convertible senior notes (the "2013 Convertible Notes") 6,786 6,786 Fixed 8.00 % September 2019 (2)  Less unamortized debt issuance costs (910) (974)  20,876 20,812  Junior subordinated notes (3):  Alesco Capital Trust I 28,125 28,125 Variable 6.75 % July 2037  Sunset Financial Statutory Trust I 20,000 20,000 Variable 6.95 % March 2035  Less unamortized discount (25,343) (25,401)  22,782 22,724  MB Financial Bank, N.A. Credit Facility - - Variable N/A April 2021   LegacyTexas Credit Facility - - Variable N/A November 2019  Total $ 43,658 $ 43,536   (1) The holder of the 2017 Convertible Note may convert all or any part of the outstanding principal amount at any time prior to maturity into units of the Operating LLC at a conversion price of $1.45 per unit, subject to customary anti-dilution adjustments. Units of the Operating LLC not held by Cohen & Company Inc. may, with certain restrictions, be redeemed and exchanged into shares of the Common Stock on a ten -for-one basis. Therefore, the 2017 Convertible Note can be converted into Operating LLC units and then redeemed and exchanged into Common Stock at an effective conversion price of $14.50 . See note 1 8 to our Annual Report on Form 10-K for the year ended December 31, 201 8 . (2) The holders of the 2013 Convertible Notes may convert all or any part of the outstanding principal amount at any time prior to maturity into shares of the Company’s Common Stock, at a conversion price of $12.00 per share, subject to certain anti-dilution adjustments . (3) The junior subordinated notes listed represent debt the Company owes to the two trusts noted above. The total par amount owed by the Company to the trusts is $49,614 . However, the Company owns the common stock of the trusts in a total par amount of $1,489 . The Company pays interest (and at maturity, principal) to the trusts on the entire $49,614 junior notes outstanding. However, the Company receives back from the trusts the pro rata share of interest and principal on the common stock held by the Company. These trusts are VIEs and the Company does not consolidate them even though the Company holds the common stock. The Company carries the common stock on its balance sheet at a value of $0 . The junior subordinated notes are recorded at a discount to par. When factoring in the discount, the yield to maturity of the junior subordinated notes as of March 31, 2019 on a combined basis is 16.75% assuming the variable rate in effect on the last day of the reporting period remains in effect until maturity. (4) Represents the interest rate in effect as of the last day of the reporting period. 
Schedule Of Interest Expense By Debt Instrument	  INTEREST EXPENSE  (Dollars in Thousands)   Three Months Ended March 31,  2019 2018  Junior subordinated notes $ 880 $ 821  2013 Convertible Notes 134 203  2017 Convertible Note 360 354  2018 MB LOC/2019 MB Revolver 92 -  LegacyTexas Credit Facility 4 -  Redeemable Financial Instrument - DGC Family Fintech Trust / CBF 148 110  Redeemable Financial Instrument - JKD Capital Partners I LTD 278 331  Redeemable Financial Instrument - ViaNova Capital Group, LLC (37) -  $ 1,859 $ 1,819  

Equity (Tables)

Equity (Tables)	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Schedule Of Unrestricted Common Stock Activity	  Common Stock  Shares  December 31, 2018 1,110,717  Vesting of shares 56,639  Shares withheld and retired for employee taxes (15,557)  Repurchase and retirement of Common Stock (7,890)  March 31, 2019 1,143,909 
Operating LLC Membership Units	  Operating LLC  Membership Units  Units related to UIS Agreement 410,820  Units surrendered from retirement of Common Stock (78,900)  Total 331,920 
Schedule Of Effects Of Changes In Ownership Interest Subsidiary	   Three Months Ended Three Months Ended  March 31, 2019 March 31, 2018  Net income / (loss) attributable to Cohen & Company Inc. $ (1,202) $ (1,474)  Transfers (to) from the non-controlling interest:  Increase / (decrease) in Cohen & Company Inc. paid in capital  for the acquisition / (surrender) of additional units in  consolidated subsidiary, net 133 84  Changes from net income / (loss) attributable to Cohen & Company Inc. and transfers (to) from the non-controlling interest $ (1,069) $ (1,390) 

Earnings _ (Loss) Per Common _2

Earnings / (Loss) Per Common Share (Tables)	3 Months Ended
	Mar. 31, 2019
Earnings / (Loss) Per Common Share [Abstract]
Schedule Of Earnings / (Loss) Per Common Share	   EARNINGS / (LOSS) PER COMMON SHARE  (Dollars in Thousands, except share or per share information)   Three Months Ended March 31,  2019 2018  Net income / (loss) attributable to Cohen & Company Inc. $ (1,202) $ (1,474)  Add/ (deduct): Income / (loss) attributable to non-controlling interest attributable to Operating LLC membership (1) (622) (677)  Add / (deduct): Adjustment (2) 53 7  Net income / (loss) on a fully converted basis $ (1,771) $ (2,144)   Weighted average common shares outstanding - Basic 1,133,166 1,172,476  Unrestricted Operating LLC membership units exchangeable into Cohen & Company shares (1) 532,409 532,409  Restricted units or shares - -  Weighted average common shares outstanding - Diluted (3) 1,665,575 1,704,885   Net income / (loss) per common share - Basic $ (1.06) $ (1.26)   Net income / (loss) per common share - Diluted $ (1.06) $ (1.26)  (1) The Operating LLC membership units not held by Cohen & Company Inc. (that is, those held by the non-controlling interest for the three months ended March 31, 2019 and 2018 ) may be redeemed and exchanged into shares of the Company on a ten -for-one basis. The Operating LLC membership units not held by Cohen & Company Inc. are redeemable, at the member’s option at any time, for (i) cash in an amount equal to the average of the per share closing prices of the Common Stock for the ten consecutive trading days immediately preceding the date the Company receives the member’s redemption notice, or (ii) at the Company’s option, one tenth of a share of the Common Stock, subject, in each case, to appropriate adjustment upon the occurrence of an issuance of additional shares of the Common Stock as a dividend or other distribution on the Company’s outstanding Common Stock, or a further subdivision or combination of the outstanding shares of the Common Stock. These units are not included in the computation of basic earnings per share. These units enter into the computation of diluted net income (loss) per common share when the effect is not anti-dilutive using the if-converted method. (2) An adjustment is included because the Company would have incurred a higher income tax expense or realized a higher income tax benefit, as applicable , if the Operating LLC membership units had been converted at the beginning of the period,. (3) For the three months ended March 31, 2019 , weighted average common shares outstanding excludes (i) 59,182 shares representing restricted Common Stock and restricted Operating LLC membership units, which when vested can be converted into Common Stock, (ii) 565,469 shares from the assumed conversion of the 2013 Convertible Notes, and (iii) 1,034,483 shares from the assumed conversion of the 2017 Convertible Note because the inclusion of such shares would be anti-dilutive. For the three months ended March 31, 2018 , weighted average common shares outstanding excludes (i) 26,691 shares representing restricted Common Stock , (ii) 274,917 shares from the assumed conversion of the 2013 Convertible Notes, and (iii) 1,034,483 shares from the assumed conversion of the 2017 Convertible Note because the inclusion of such shares would be anti-dilutive.

Segment And Geographic Inform_2

Segment And Geographic Information (Tables)	3 Months Ended
	Mar. 31, 2019
Segment And Geographic Information [Abstract]
Schedule Of Segment Reporting Information	            SEGMENT INFORMATION  Statement of Operations Information  Three Months Ended March 31, 2019   Capital Asset Principal Segment Unallocated  Markets Management Investing Total (1) Total  Net trading $ 8,729 $ - $ - $ 8,729 $ - $ 8,729  Asset management - 2,002 - 2,002 - 2,002  New issue and advisory - - - - - -  Principal transactions and other income 1 97 316 414 - 414  Total revenues 8,730 2,099 316 11,145 - 11,145  Total operating expenses 7,458 1,815 100 9,373 1,835 11,208  Operating income (loss) 1,272 284 216 1,772 (1,835) (63)  Interest income (expense) 76 (63) - 13 (1,872) (1,859)  Income (loss) from equity method affiliates - - (8) (8) - (8)  Income (loss) before income taxes 1,348 221 208 1,777 (3,707) (1,930)  Income tax expense (benefit) - - - - (106) (106)  Net income (loss) 1,348 221 208 1,777 (3,601) (1,824)   Less: Net income (loss) attributable to the non-controlling interest - - - - (622) (622)  Net income (loss) attributable to Cohen & Company Inc. $ 1,348 $ 221 $ 208 $ 1,777 $ (2,979) $ (1,202)   Other statement of operations data  Depreciation and amortization (included in total operating expense) $ 5 $ 1 $ - $ 6 $ 75 $ 81            SEGMENT INFORMATION  Statement of Operations Information  Three Months Ended March 31, 2018   Capital Asset Principal Segment Unallocated  Markets Management Investing Total (1) Total  Net trading $ 6,191 $ - $ - $ 6,191 $ - $ 6,191  Asset management - 1,804 - 1,804 - 1,804  New issue and advisory 696 - - 696 - 696  Principal transactions and other income - 204 443 647 - 647  Total revenues 6,887 2,008 443 9,338 - 9,338  Total operating expenses 6,651 1,393 96 8,140 1,558 9,698  Operating income (loss) 236 615 347 1,198 (1,558) (360)  Interest expense - - - - (1,819) (1,819)  Income / (loss) from equity method affiliates - - - - - -  Income (loss) before income taxes 236 615 347 1,198 (3,377) (2,179)  Income tax expense (benefit) - - - - (28) (28)  Net income (loss) 236 615 347 1,198 (3,349) (2,151)   Less: Net income (loss) attributable to the non-controlling interest - - - - (677) (677)  Net income (loss) attributable to Cohen & Company Inc. $ 236 $ 615 $ 347 $ 1,198 $ (2,672) $ (1,474)   Other statement of operations data  Depreciation and amortization (included in total operating expense) $ 16 $ 1 $ - $ 17 $ 44 $ 61   (1) Unallocated includes certain expenses incurred by indirect overhead and support departments (such as the executive, finance, legal, information technology, human resources, risk, compliance, and other similar overhead and support departments). Some of the items not allocated include: (1) operating expenses (such as cash compensation and benefits, equity-based compensation expense, professional fees, travel and entertainment, consulting fees, and rent) related to support departments excluding certain departments that directly support the Capital Markets business segment; (2) interest expense on debt; and (3) income taxes. Management does not consider these items necessary for an understanding of the operating results of these business segments and such amounts are excluded in business segment reporting to the chief operating decision maker. 
Reconciliation Of Assets From Segment To Consolidated	    BALANCE SHEET DATA  As of March 31, 2019  (Dollars in Thousands)   Capital Asset Principal Segment Unallocated  Markets Management Investing Total (1) Total  Total Assets $ 4,922,973 $ 2,106 $ 13,233 $ 4,938,312 $ 13,015 $ 4,951,327   Included within total assets:  Goodwill (2) $ 7,937 $ 55 $ - $ 7,992 $ - $ 7,992  Intangible assets (2) $ 166 $ - $ - $ 166 $ - $ 166       BALANCE SHEET DATA  December 31, 2018  (Dollars in Thousands)   Capital Asset Principal Segment Unallocated  Markets Management Investing Total (1) Total  Total Assets $ 5,633,806 $ 2,309 $ 13,768 $ 5,649,883 $ 4,569 $ 5,654,452   Included within total assets:  Goodwill (2) $ 7,937 $ 55 $ - $ 7,992 $ - $ 7,992  Intangible assets (2) $ 166 $ - $ - $ 166 $ - $ 166  (1) Unallocated assets primarily include: (1) amounts due from related parties; (2) furniture and equipment, net; and (3) other assets that are not considered necessary for an understanding of business segment assets and such amounts are excluded in business segment reporting to the chief operating decision maker. (2) Goodwill and intangible assets are allocated to the Capital Markets and Asset Management business segments as indicated in the table above.
Revenue By Geographic Area	   GEOGRAPHIC DATA  (Dollars in Thousands)   Three Months Ended March 31,  2019 2018  Total Revenues:  United States $ 10,087 $ 7,902  United Kingdom & Other 1,058 1,436  Total $ 11,145 $ 9,338 

Related Party Transactions (Tab

Related Party Transactions (Tables)	3 Months Ended
	Mar. 31, 2019
Related Party Transactions [Abstract]
Schedule Of Related Party Transactions	.     RELATED PARTY TRANSACTIONS  Three Months Ended March 31, 2019  (Dollars in Thousands)   Net trading Asset management Principal transactions and other income Income (loss) from equity method affiliates Professional fee and other operating Interest expense(income) incurred  CBF $ - $ - $ - $ - $ - $ 119  DGC Family Fintech Trust - - - - - 390  Duane Morris - - - - 101 -  EBC - - - - - 47  Edward E. Cohen IRA - - - - - 87  EuroDekania - 86 291 - - -  Fintech Acquisition Corp. III - - 3 - - -  Insurance SPAC - - 4 (8) - -  JKD Investor - - - - - 278  SPAC Fund - 31 24 - - -  TBBK 2 - - - - -  U.S. Insurance JV - 80 39 - - -  $ 2 $ 197 $ 361 $ (8) $ 101 $ 921      RELATED PARTY TRANSACTIONS  Three Months Ended March 31, 2018  (Dollars in Thousands)   Net trading Asset management Principal transactions and other income Income (loss) from equity method affiliates Professional fee and other operating Interest expense(income) incurred  CBF $ - $ - $ - $ - $ - $ 88  DGC Family Fintech Trust - - - - - 376  Duane Morris - - - - 208 -  EBC - - - - - 59  Edward E. Cohen IRA - - - - - 108  EuroDekania - 33 - - - -  Fintech Acquisition Corp. II - - 2 - - -  JKD Investor - - - - - 331  TBBK 11 - - - - -  $ 11 $ 33 $ 2 $ - $ 208 $ 962 

Due From _ Due To Related Par_2

Due From / Due To Related Parties (Tables)	3 Months Ended
	Mar. 31, 2019
Due From / Due To Related Parties [Abstract]
Schedule Of Due From / Due To Related Parties	   DUE FROM/DUE TO RELATED PARTIES  (Dollars in Thousands)   March 31, 2019 December 31, 2018  Employees & other $ 625 $ 793  Due from r elated p arties $ 625 $ 793   

Organization And Nature Of Op_2

Organization And Nature Of Operations (Narrative) (Details) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)segment$ / shares	Dec. 31, 2018$ / shares
Securities [Line Items]
Common Stock, par value | $ / shares	$ 0.01	$ 0.01
Assets under management	$ 2,780
Number of Operating Segments | segment	3
CDOs [Member]
Securities [Line Items]
Assets under management	$ 2,310
Assets under management which are collateralized debt obligations percentage	83.10%

Summary Of Significant Accoun_3

Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Thousands	Jan. 01, 2019	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Summary Of Significant Accounting Policies [Line Items]
Other assets		$ 3,637		$ 3,621
Maximum normal term for resale agreements		1 month
Estimated debt in fair value		$ 51,181		$ 50,159
Right of use asset		8,081
Lease commitment liability		8,658
Increase in other receivables		$ (3,894)	$ (554)
Accounting Standards Update 2016-02 [Member]
Summary Of Significant Accounting Policies [Line Items]
Right of use asset	$ 8,416
Lease commitment liability	8,860
Reduction in retained earnings from cumulative effect of adoption	20
Increase in other receivables	18
Reduction in other liabilities	$ 406

New Business (Narrative) (Detai

New Business (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands		Mar. 22, 2019	May 16, 2018	Mar. 31, 2019		Dec. 31, 2018		Aug. 06, 2018
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Net asset value				$ 4,433		$ 4,050
Common Stock, par value				$ 0.01		$ 0.01
Common Stock, shares issued				1,217,624		1,204,196
Common Stock, shares outstanding				1,217,624		1,204,196
Investments Measured At NAV [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Net asset value	[1]			$ 4,433		$ 4,050
U.S. Insurance JV [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Required investment percentage of total equity			4.50%
Net asset value	[2]			1,964		1,925
U.S. Insurance JV [Member] | Maximum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Net asset value			$ 3,000
U.S. Insurance JV [Member] | Investor [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Net asset value			$ 63,000
SPAC Fund [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Net asset value				$ 646	[3]	$ 592	[3]	$ 600
Insurance SPAC [Member] | IPO [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Sale of Stock, Number of Shares Issued in Transaction		15,065,000
Common Stock, par value		$ 0.0001
Sale of Stock, Price Per Share		$ 10
Sale of Stock, Consideration Received on Transaction		$ 150,650
Option period		45 days
Sale of Stock, Number Of Shares For Additional Purchase		1,965,000
Common Stock, shares issued		20,653,333
Common Stock, shares outstanding		20,653,333
Insurance SPAC [Member] | IPO [Member] | SPAC Warrant [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 11.50
Sponsor Entities [Member] | Insurance SPAC [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Period Of Required Business Combination To Occur Following IPO For Proceeds To Not Expire				18 months
Investment Owned, Balance, Shares				5,103,333
Period Shares Held From Private Placement Will Not Be Transferable Or Salable				30 days
Exception Percentage Of Total Shares That Can Be Transferable Or Salable				20.00%
Period Out Of Consecutive 30 Trading Days For Transferable Or Salable Price Tranches To Hit				20 days
Sponsor Entities [Member] | Insurance SPAC [Member] | Closing Price Tranche 1 [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Sale of Stock, Price Per Share				$ 12
Sponsor Entities [Member] | Insurance SPAC [Member] | Closing Price Tranche 2 [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Sale of Stock, Price Per Share				13.50
Sponsor Entities [Member] | Insurance SPAC [Member] | Closing Price Tranche 3 [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Sale of Stock, Price Per Share				15
Sponsor Entities [Member] | Insurance SPAC [Member] | Closing Price Tranche 4 [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Sale of Stock, Price Per Share				$ 17
Sponsor Entities [Member] | Insurance SPAC [Member] | Private Placement [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Sale of Stock, Number of Shares Issued in Transaction				375,000
Sale of Stock, Price Per Share				$ 10
Sale of Stock, Consideration Received on Transaction				$ 3,750
Period Of Private Placement Shares Not To Be Transferable, Assignable, Or Salable				30 days
Sponsor Entities [Member] | Insurance SPAC [Member] | Investor [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Net asset value				$ 2,550
[1]	As a practical expedient, the Company uses NAV or its equivalent to measure the fair value of its investments in EuroDekania, the U.S. Insurance JV, and the SPAC Fund. EuroDekania invests in hybrid capital securities of European companies. The U.S. Insurance JV invests in debt issued by small and medium sized U.S. and Bermuda insurance and reinsurance companies. The SPAC Fund invests in equity securities of SPACs. According to ASC 820, these investments are not categorized within the fair value hierarchy.
[2]	The U.S. Insurance JV invests in debt issued by small and medium sized U.S. and Bermuda insurance and reinsurance companies.
[3]	The SPAC Fund invests in equity interests of SPACs.

Net Trading (Schedule Of Net Tr

Net Trading (Schedule Of Net Trading) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net Trading [Abstract]
Net realized gains (losses) - trading inventory	$ 6,310	$ 4,224
Net unrealized gains (losses) - trading inventory	559	13
Net gains and losses	6,869	4,237
Interest income-trading inventory	1,615	1,356
Interest income-receivables under resale agreements	32,232	9,072
Interest income	33,847	10,428
Interest expense-securities sold under agreements to repurchase	(31,130)	(8,027)
Interest expense-margin payable	(857)	(447)
Interest expense	(31,987)	(8,474)
Net Trading	$ 8,729	$ 6,191

Receivables From And Payables_3

Receivables From And Payables To Brokers, Dealers, And Clearing Agencies (Schedule Of Due To (From) Broker-Dealers And Clearing Organizations) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Receivables from Brokers-Dealers and Clearing Agencies [Abstract]
Deposits with clearing agencies	$ 250	$ 250
Unsettled regular way trades, net	5,816
Receivable from clearing agencies	98,378	129,562
Receivables from brokers, dealers, and clearing agencies	104,444	129,812
Payables to Broker-Dealers and Clearing Agencies [Abstract]
Unsettled regular way trades, net		5,822
Margin payable	162,951	195,776
Payables to brokers, dealers, and clearing agencies	$ 162,951	$ 201,598

Financial Instruments (Schedule

Financial Instruments (Schedule Of Trading Securities) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments-trading	$ 285,473	$ 301,235
U.S. government agency MBS and CMOs [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments-trading	185,905	149,651
U.S. government agency debt securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments-trading	17,027	14,915
RMBS [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments-trading	29	21
U.S. Treasury securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments-trading	11,439	4,099
ABS [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments-trading	100	100
SBA loans [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments-trading	11,196	31,496
Corporate bonds and redeemable preferred stock [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments-trading	29,156	44,507
Foreign government bonds [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments-trading	875	117
Municipal bonds [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments-trading	17,281	47,433
Certificates of deposit [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments-trading	1,850	302
Derivatives [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments-trading	10,207	8,212
Equity securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments-trading	$ 408	$ 382

Financial Instruments (Schedu_2

Financial Instruments (Schedule Of Trading Securities Sold, Not Yet Purchased) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Security Owned and Sold, Not yet Purchased, at Fair Value [Line Items]
Trading securities sold, not yet purchased	$ 98,245	$ 120,122
U.S. government agency MBS and CMOs [Member]
Security Owned and Sold, Not yet Purchased, at Fair Value [Line Items]
Trading securities sold, not yet purchased		16
U.S. Treasury securities [Member]
Security Owned and Sold, Not yet Purchased, at Fair Value [Line Items]
Trading securities sold, not yet purchased	42,043	70,010
Corporate bonds and redeemable preferred stock [Member]
Security Owned and Sold, Not yet Purchased, at Fair Value [Line Items]
Trading securities sold, not yet purchased	46,530	43,957
Municipal bonds [Member]
Security Owned and Sold, Not yet Purchased, at Fair Value [Line Items]
Trading securities sold, not yet purchased	20	20
Derivatives [Member]
Security Owned and Sold, Not yet Purchased, at Fair Value [Line Items]
Trading securities sold, not yet purchased	$ 9,652	$ 6,119

Financial Instruments (Schedu_3

Financial Instruments (Schedule Of Other Investments) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Schedule of Investments [Line Items]
Other investments, Amortized Cost	$ 11,173	$ 15,332
Other investments, Carry Value	9,440	13,768
Other investments, Unrealized Gain / (Loss)	(1,733)	(1,564)
EuroDekania [Member]
Schedule of Investments [Line Items]
Other investments, Amortized Cost	4,489	4,489
Other investments, Carry Value	1,823	1,533
Other investments, Unrealized Gain / (Loss)	(2,666)	(2,956)
U.S. Insurance JV [Member]
Schedule of Investments [Line Items]
Other investments, Amortized Cost	1,900	1,900
Other investments, Carry Value	1,964	1,925
Other investments, Unrealized Gain / (Loss)	64	25
SPAC Fund [Member]
Schedule of Investments [Line Items]
Other investments, Amortized Cost	630	600
Other investments, Carry Value	646	592
Other investments, Unrealized Gain / (Loss)	16	(8)
Equity securities [Member]
Schedule of Investments [Line Items]
Other investments, Amortized Cost	780	5,016
Other investments, Carry Value	1,896	6,650
Other investments, Unrealized Gain / (Loss)	1,116	1,634
CLOs [Member]
Schedule of Investments [Line Items]
Other investments, Amortized Cost	3,155	3,099
Other investments, Carry Value	2,753	2,730
Other investments, Unrealized Gain / (Loss)	(402)	(369)
CDOs [Member]
Schedule of Investments [Line Items]
Other investments, Amortized Cost	189	189
Other investments, Carry Value	26	26
Other investments, Unrealized Gain / (Loss)	(163)	(163)
Residential Loans [Member]
Schedule of Investments [Line Items]
Other investments, Amortized Cost	30	39
Other investments, Carry Value	316	325
Other investments, Unrealized Gain / (Loss)	286	286
Foreign currency forward contracts [Member]
Schedule of Investments [Line Items]
Other investments, Carry Value	16	(13)
Other investments, Unrealized Gain / (Loss)	$ 16	$ (13)

Fair Value Disclosures (Narrati

Fair Value Disclosures (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount	$ 0	$ 0
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount	0	0
Fair value, option, changes in fair value, gains (losses)	$ 249,000	$ 151,000

Fair Value Disclosures (Schedul

Fair Value Disclosures (Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		$ 285,473	$ 301,235
Other investments, measured using hierarchy		5,007	9,718
Other investments, at fair value		4,433	4,050
Other investments, Carrying Value		9,440	13,768
Trading securities sold, not yet purchased		98,245	120,122
Quoted Prices In Active Markets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		11,439	4,099
Other investments, measured using hierarchy		1,059	5,762
Trading securities sold, not yet purchased		42,043	70,010
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		274,034	297,136
Other investments, measured using hierarchy		1,169	1,200
Trading securities sold, not yet purchased		56,202	50,112
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments, measured using hierarchy		2,779	2,756
Investments Measured At NAV [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments, at fair value	[1]	4,433	4,050
U.S. government agency MBS and CMOs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		185,905	149,651
Trading securities sold, not yet purchased			16
U.S. government agency MBS and CMOs [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		185,905	149,651
U.S. government agency debt securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		17,027	14,915
U.S. government agency debt securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		17,027	14,915
U.S. government agency MBS [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities sold, not yet purchased			16
U.S. government agency MBS [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities sold, not yet purchased			16
RMBS [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		29	21
RMBS [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		29	21
U.S. Treasury securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		11,439	4,099
Trading securities sold, not yet purchased		42,043	70,010
U.S. Treasury securities [Member] | Quoted Prices In Active Markets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		11,439	4,099
Trading securities sold, not yet purchased		42,043	70,010
ABS [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		100	100
ABS [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		100	100
SBA loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		11,196	31,496
SBA loans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		11,196	31,496
Corporate bonds and redeemable preferred stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		29,156	44,507
Trading securities sold, not yet purchased		46,530	43,957
Corporate bonds and redeemable preferred stock [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		29,156	44,507
Trading securities sold, not yet purchased		46,530	43,957
Foreign government bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		875	117
Foreign government bonds [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		875	117
Municipal bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		17,281	47,433
Trading securities sold, not yet purchased		20	20
Municipal bonds [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		17,281	47,433
Trading securities sold, not yet purchased		20	20
Certificates of deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		1,850	302
Certificates of deposit [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		1,850	302
Derivatives [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		10,207	8,212
Trading securities sold, not yet purchased		9,652	6,119
Derivatives [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		10,207	8,212
Trading securities sold, not yet purchased		9,652	6,119
Equity securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		408	382
Other investments, measured using hierarchy		1,896	6,650
Other investments, Carrying Value		1,896	6,650
Equity securities [Member] | Quoted Prices In Active Markets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments, measured using hierarchy		1,043	5,775
Equity securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total investments-trading		408	382
Other investments, measured using hierarchy		853	875
CLOs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments, measured using hierarchy		2,753	2,730
CLOs [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments, measured using hierarchy		2,753	2,730
CDOs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments, measured using hierarchy		26	26
CDOs [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments, measured using hierarchy		26	26
Residential Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments, measured using hierarchy		316	325
Residential Loans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments, measured using hierarchy		316	325
Foreign currency forward contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments, measured using hierarchy		16	(13)
Foreign currency forward contracts [Member] | Quoted Prices In Active Markets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments, measured using hierarchy		16	(13)
EuroDekania [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments, at fair value	[2]	1,823	1,533
Other investments, Carrying Value		$ 1,823	$ 1,533
[1]	As a practical expedient, the Company uses NAV or its equivalent to measure the fair value of its investments in EuroDekania, the U.S. Insurance JV, and the SPAC Fund. EuroDekania invests in hybrid capital securities of European companies. The U.S. Insurance JV invests in debt issued by small and medium sized U.S. and Bermuda insurance and reinsurance companies. The SPAC Fund invests in equity securities of SPACs. According to ASC 820, these investments are not categorized within the fair value hierarchy.
[2]	EuroDekania owns investments in hybrid capital securities that have attributes of debt and equity, primarily in the form of subordinated debt issued by insurance companies, banks, and bank holding companies based primarily in Western Europe; widely syndicated leveraged loans issued by European corporations; commercial mortgage backed securities ("CMBS"), including subordinated interests in first mortgage real estate loans; and RMBS and ABS backed by consumer and commercial receivables. The majority of the assets are denominated in Euros and U.K. Pounds Sterling.

Fair Value Disclosures (Sched_2

Fair Value Disclosures (Schedule Of Assets And Liabilities Measured With Level 3 Inputs) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs
Level 3 inputs, Beginning balance		$ 2,756	$ 4,511
Accretion of income	[1]	106	343
Purchases			9,600
Sales and returns of capital		(50)	(169)
Level 3 inputs, Ending balance		2,779	14,276
Change in unrealized gains /(losses)	[2]	(33)	147
Gains and Losses [Member]
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs
Transactions included in income - Gains and Losses	[1]	$ (33)	$ (9)
[1]	Gains and losses on and accretion of income on other investments, at fair value are recorded as a component of principal transactions and other income in the consolidated statements of operations.
[2]	Represents the change in unrealized gains and losses for the period included in earnings for assets held at the end of the reporting period.

Fair Value Disclosures (Quantit

Fair Value Disclosures (Quantitative Information About Level 3 Fair Value Measurements) (Details) - Significant Unobservable Inputs (Level 3) [Member] - CLOs [Member] - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 2,753,000	$ 2,730,000
Measurement Input		2
Yield [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement Input	15.6	18.1
Yield [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement Input	19.3	21.6
Yield [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement Input	17.6	20
Duration [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement Term	6 years 1 month 6 days	6 years 3 months 18 days
Duration [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement Term	7 years 3 months 18 days	7 years 6 months
Duration [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement Term	6 years 7 months 6 days	6 years 10 months 24 days
Default Rate [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement Input	2
Default Rate [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement Input	2
Default Rate [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement Input	2	2

Fair Value Disclosures (Fair Va

Fair Value Disclosures (Fair Value, Investments, Entities That Calculate Net Asset Value Per Share) (Details) - USD ($) $ in Thousands		Mar. 31, 2019		Dec. 31, 2018		Aug. 06, 2018
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Other investments, at fair value		$ 4,433		$ 4,050
EuroDekania [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Other investments, at fair value	[1]	1,823		1,533
U.S. Insurance JV [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Other investments, at fair value	[2]	1,964		1,925
Unfunded commitments	[2]	1,100		1,100
SPAC Fund [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Other investments, at fair value		$ 646	[3]	$ 592	[3]	$ 600
[1]	EuroDekania owns investments in hybrid capital securities that have attributes of debt and equity, primarily in the form of subordinated debt issued by insurance companies, banks, and bank holding companies based primarily in Western Europe; widely syndicated leveraged loans issued by European corporations; commercial mortgage backed securities ("CMBS"), including subordinated interests in first mortgage real estate loans; and RMBS and ABS backed by consumer and commercial receivables. The majority of the assets are denominated in Euros and U.K. Pounds Sterling.
[2]	The U.S. Insurance JV invests in debt issued by small and medium sized U.S. and Bermuda insurance and reinsurance companies.
[3]	The SPAC Fund invests in equity interests of SPACs.

Derivative Financial Instrume_3

Derivative Financial Instruments (Narrative) (Details) € in Thousands	Mar. 31, 2019EUR (€)	Mar. 31, 2019USD ($)	Dec. 31, 2018EUR (€)	Dec. 31, 2018USD ($)
TBA And Other Forward Agency MBS [Member] | Short [Member]
Derivative [Line Items]
Derivative, Notional Amount		$ 1,693,890,000		$ 1,069,688,000
TBA And Other Forward Agency MBS [Member] | Long [Member]
Derivative [Line Items]
Derivative, Notional Amount		1,642,700,000		1,025,850,000
Foreign currency forward contracts [Member]
Derivative [Line Items]
Derivative, Notional Amount | €	€ 1,250		€ 1,250
EuroDollar futures contracts [Member]
Derivative [Line Items]
Derivative, Notional Amount		0		0
Other Extended Settlement Trades [Member]
Derivative [Line Items]
Forward purchase commitment		$ 13,707,000		$ 15,295,000

Derivative Financial Instrume_4

Derivative Financial Instruments (Balance Sheet Information) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Derivative fair value	$ 571	$ 2,080
Investments-trading [Member] | TBAs and Other Forward Agency MBS [Member]
Derivatives, Fair Value [Line Items]
Derivative fair value	10,161	8,142
Investments-trading [Member] | Other Extended Settlement Trades [Member]
Derivatives, Fair Value [Line Items]
Derivative fair value	46	70
Other Investment At Fair Value [Member] | Foreign currency forward contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative fair value	16	(13)
Trading securities sold, not yet purchased [Member] | TBAs and Other Forward Agency MBS [Member]
Derivatives, Fair Value [Line Items]
Derivative fair value	$ (9,652)	(6,116)
Trading securities sold, not yet purchased [Member] | Other Extended Settlement Trades [Member]
Derivatives, Fair Value [Line Items]
Derivative fair value		$ (3)

Derivative Financial Instrume_5

Derivative Financial Instruments (Statement Of Operations Information) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Derivative [Line Items]
Derivative financial instruments, net gain (loss) recognized	$ 777	$ 1,930
Principal Transactions And Other Income [Member] | Not Designated as Hedging Instruments [Member] | Foreign currency forward contracts [Member]
Derivative [Line Items]
Derivative financial instruments, net gain (loss) recognized	40	(19)
Revenues - net trading [Member] | Not Designated as Hedging Instruments [Member] | Other Extended Settlement Trades [Member]
Derivative [Line Items]
Derivative financial instruments, net gain (loss) recognized	(24)	(10)
Revenues - net trading [Member] | Not Designated as Hedging Instruments [Member] | TBAs and Other Forward Agency MBS [Member]
Derivative [Line Items]
Derivative financial instruments, net gain (loss) recognized	$ 761	$ 1,959

Collateralized Securities Tra_3

Collateralized Securities Transactions (Narrative) (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019USD ($)itementity	Mar. 31, 2018USD ($)	Dec. 31, 2018USD ($)entity	Apr. 11, 2019USD ($)	Apr. 25, 2018USD ($)
Concentration Risk [Line Items]
Securities reverse repurchase agreements	$ 4,510,389		$ 5,171,053
Fair value of securities received as collateral under reverse repurchase agreements	$ 4,744,785		$ 5,444,823
Number of counterparties related to reverse repurchase agreements | entity	35		36
Securities sold under agreements to repurchase	$ 4,560,713		$ 5,210,587
Fair value of securities pledged as collateral under repurchase agreements	4,610,690		$ 5,233,017
Intraday lending facility, commitment amount	$ 100,000			$ 75,000
Intraday lending facility, termination date	Oct. 19, 2019
Intraday lending facility, renewal period	364 days
Intraday lending facility, annual interest rate	0.12%
Revenues	$ 11,145	$ 9,338
Gestational Repo Business [Member]
Concentration Risk [Line Items]
Number of counterparties related to reverse repurchase agreements | item	6
Base Rate [Member]
Concentration Risk [Line Items]
Intraday lending facility, basis spread on variable rate	3.00%
Feds Fund Rate [Member]
Concentration Risk [Line Items]
Intraday lending facility, basis spread on variable rate	0.50%
FICC [Member] | Minimum [Member]
Concentration Risk [Line Items]
Line of credit, borrowing capacity					$ 25,000
Product Concentration Risk [Member]
Concentration Risk [Line Items]
Revenues	$ 1,294	$ 1,110

Collateralized Securities Tra_4

Collateralized Securities Transactions (Schedule Of Repurchase Agreements Accounted For As Secured Borrowings) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Assets Sold under Agreements to Repurchase [Line Items]
Securities sold under agreements to repurchase	$ 4,560,713	$ 5,210,587
Receivables under resale agreements	4,510,389	5,171,053
Repurchase Agreements [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized liabilities for repurchase agreements	5,461,855	7,671,764
Reverse repurchase agreements with FICC netted with repurchase agreements with FICC	(901,142)	(2,461,177)
Securities sold under agreements to repurchase	4,560,713	5,210,587
Repurchase Agreements [Member] | Overnight and Continuous [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized liabilities for repurchase agreements	2,497,433	7,032,909
Repurchase Agreements [Member] | Up to 30 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized liabilities for repurchase agreements	2,162,977	537,937
Repurchase Agreements [Member] | 30 to 90 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized liabilities for repurchase agreements	250,579	100,918
Repurchase Agreements [Member] | Greater than 90 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized liabilities for repurchase agreements	550,866
Repurchase Agreements [Member] | U.S. government agency MBS [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized liabilities for repurchase agreements	5,014,134	7,265,295
Repurchase Agreements [Member] | U.S. government agency MBS [Member] | Overnight and Continuous [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized liabilities for repurchase agreements	2,486,338	7,014,758
Repurchase Agreements [Member] | U.S. government agency MBS [Member] | Up to 30 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized liabilities for repurchase agreements	1,726,351	250,537
Repurchase Agreements [Member] | U.S. government agency MBS [Member] | 30 to 90 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized liabilities for repurchase agreements	250,579
Repurchase Agreements [Member] | U.S. government agency MBS [Member] | Greater than 90 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized liabilities for repurchase agreements	550,866
Repurchase Agreements [Member] | MBS (Gestational Repo) [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized liabilities for repurchase agreements	436,626	388,318
Repurchase Agreements [Member] | MBS (Gestational Repo) [Member] | Up to 30 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized liabilities for repurchase agreements	436,626	287,400
Repurchase Agreements [Member] | MBS (Gestational Repo) [Member] | 30 to 90 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized liabilities for repurchase agreements		100,918
Repurchase Agreements [Member] | SBA loans [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized liabilities for repurchase agreements	11,095	18,151
Repurchase Agreements [Member] | SBA loans [Member] | Overnight and Continuous [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized liabilities for repurchase agreements	11,095	18,151
Reverse Repurchase Agreements [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized assets for reverse repurchase agreements	5,411,531	7,632,230
Reverse repurchase agreements with FICC netted with repurchase agreements with FICC	(901,142)	(2,461,177)
Receivables under resale agreements	4,510,389	5,171,053
Reverse Repurchase Agreements [Member] | Overnight and Continuous [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized assets for reverse repurchase agreements	450,360	10,864
Reverse Repurchase Agreements [Member] | Up to 30 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized assets for reverse repurchase agreements	1,842,908	5,764,456
Reverse Repurchase Agreements [Member] | 30 to 90 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized assets for reverse repurchase agreements	2,668,661	699,561
Reverse Repurchase Agreements [Member] | Greater than 90 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized assets for reverse repurchase agreements	449,602	1,157,349
Reverse Repurchase Agreements [Member] | U.S. government agency MBS [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized assets for reverse repurchase agreements	4,973,522	7,244,095
Reverse Repurchase Agreements [Member] | U.S. government agency MBS [Member] | Overnight and Continuous [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized assets for reverse repurchase agreements	450,360	10,864
Reverse Repurchase Agreements [Member] | U.S. government agency MBS [Member] | Up to 30 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized assets for reverse repurchase agreements	1,404,899	5,477,247
Reverse Repurchase Agreements [Member] | U.S. government agency MBS [Member] | 30 to 90 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized assets for reverse repurchase agreements	2,668,661	598,635
Reverse Repurchase Agreements [Member] | U.S. government agency MBS [Member] | Greater than 90 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized assets for reverse repurchase agreements	449,602	1,157,349
Reverse Repurchase Agreements [Member] | MBS (Gestational Repo) [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized assets for reverse repurchase agreements	438,009	388,135
Reverse Repurchase Agreements [Member] | MBS (Gestational Repo) [Member] | Up to 30 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized assets for reverse repurchase agreements	$ 438,009	287,209
Reverse Repurchase Agreements [Member] | MBS (Gestational Repo) [Member] | 30 to 90 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Gross amount of recognized assets for reverse repurchase agreements		$ 100,926

Investment in Equity Method A_3

Investment in Equity Method Affiliate (Schedule Of Investments In Equity Method Affiliates) (Details) - Insurance SPAC [Member] $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Schedule of Equity Method Investments [Line Items]
Begining Balance
Investments / advances	3,775
Distributions/repayments
Earnings / (loss) realized	(8)
Ending Balance	$ 3,767

Leases (Narrative) (Details)

Leases (Narrative) (Details) - USD ($)	Jan. 01, 2019	Mar. 31, 2019	Mar. 31, 2018
Right of use asset		$ 8,081,000
Lease commitment liability		8,658,000
Increase in other receivables		$ (3,894,000)	$ (554,000)
Weighted average remaining term		8 years 7 months 24 days
Weighted average discount rate		5.27%
Operating lease cash payments		$ 286,000
Cash payments to acquire right of use assets		0
Sublease Income		65,000
Operating Leases, Rent Expense, Net		$ 390,000
Accounting Standards Update 2016-02 [Member]
Right of use asset	$ 8,416,000
Lease commitment liability	8,860,000
Reduction in retained earnings from cumulative effect of adoption	20,000
Increase in other receivables	18,000
Reduction in other liabilities	$ 406,000

Leases (Schedule Of Future Matu

Leases (Schedule Of Future Maturity Of Lease Liabilities) (Details) $ in Thousands	Mar. 31, 2019USD ($)
Leases [Abstract]
2019 - remaining	$ 1,290
2020	1,564
2021	1,108
2022	933
2023	950
Thereafter	5,077
Total	10,922
Less imputed interest	(2,264)
Lease obligation	$ 8,658

Other Receivables, Other Asse_2

Other Receivables, Other Assets And Accounts Payable And Other Liabilities (Schedule Of Other Receivables) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Other Receivables, Other Assets And Accounts Payable And Other Liabilities [Abstract]
Cash collateral due from counterparties	$ 5,508	$ 6,216
Asset management fees receivable	954	947
New issue and advisory fees receivable		2,100
Accrued interest and dividends receivable	1,254	2,359
Revenue share receivable	96	140
Other	384	310
Other receivables	$ 8,196	$ 12,072

Other Receivables, Other Asse_3

Other Receivables, Other Assets And Accounts Payable And Other Liabilities (Schedule Of Other Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Schedule of other assets
Deferred costs	$ 648	$ 571
Prepaid expenses	1,037	1,009
Prepaid income taxes		40
Deposits	681	669
Miscellaneous other assets	33	33
Furniture, equipment and leasehold improvements, net	1,072	1,133
Intangible assets	166	166
Other assets	$ 3,637	$ 3,621

Other Receivables, Other Asse_4

Other Receivables, Other Assets And Accounts Payable And Other Liabilities (Schedule Of Accounts Payable And Other Liabilities) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Schedule of accounts payable and other liabilities
Accounts payable	$ 285	$ 359
Redeemable financial instruments accrued interest	352	714
Rent payable		405
Accrued interest payable	670	674
Accrued interest on securities sold, not yet purchased	992	1,184
Payroll taxes payable	394	721
Counterparty cash collateral	6,437	4,227
Accrued expense and other liabilities	2,710	3,168
Accounts payable and other liabilities	$ 11,840	$ 11,452

Variable Interest Entities (Nar

Variable Interest Entities (Narrative) (Details) - USD ($)		Mar. 31, 2019	Dec. 31, 2018
Variable Interest Entity [Line Items]
VIE liabilities, contingent liabilities, and guarantees		$ 0	$ 0
Managed Variable Interest Entity [Member]
Variable Interest Entity [Line Items]
Unfunded commitments		1,100,000
U.S. Insurance JV [Member]
Variable Interest Entity [Line Items]
Unfunded commitments	[1]	$ 1,100,000	$ 1,100,000
[1]	The U.S. Insurance JV invests in debt issued by small and medium sized U.S. and Bermuda insurance and reinsurance companies.

Variable Interest Entities (Sch

Variable Interest Entities (Schedule Of Variable Interest Entities) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Other investments, fair value	$ 2,779	$ 2,756	$ 14,276	$ 4,511
Maximum Exposure	5,389	5,273
Alternative Investments [Member]
Variable Interest Entity [Line Items]
Other investments, fair value	$ 5,389	$ 5,273

Redeemable Financial Instrume_3

Redeemable Financial Instruments (Narrative) (Details) - USD ($) $ in Thousands	Nov. 16, 2018	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Feb. 28, 2019
Related Party Transaction [Line Items]
Redeemable financial instrument		$ 18,679	$ 17,448
Due from Related Parties		625	793
Net interest expense		$ (1,859)		$ (1,819)
Investment agreement, written notice period for termination		90 days
Investment agreement, alternative period of required prior written notice contingency		60 days
Proceeds from redeemable financial instrument		$ 1,268
DGC Family Fintech Trust/CBF [Member]
Related Party Transaction [Line Items]
Redeemable financial instrument		10,000	$ 10,000
JKD Capital Partners I, LTD [Member]
Related Party Transaction [Line Items]
Percentage of difference between revenues generated by activities of redeemable financial instrument			42.00%
Redeemable financial instrument		$ 8,000	$ 6,732
JVB's [Member]
Related Party Transaction [Line Items]
Redeemable financial instrument	$ 2,750
Potential percent of consideration owed to investor on qualified sale		25.00%
Hancock [Member]
Related Party Transaction [Line Items]
Redeemable financial instrument	500
New Avenue [Member]
Related Party Transaction [Line Items]
Redeemable financial instrument	250
COHN, LLC [Member]
Related Party Transaction [Line Items]
Redeemable financial instrument	500
ViaNova Investment [Member] | New Avenue [Member]
Related Party Transaction [Line Items]
Redeemable financial instrument					$ 200
ViaNova Investment [Member] | COHN, LLC [Member]
Related Party Transaction [Line Items]
Revenue threshold	693
Redeemable Financial Instrument Payment Due [Member] | New Avenue [Member]
Related Party Transaction [Line Items]
Due from Related Parties	$ 50

Redeemable Financial Instrume_4

Redeemable Financial Instruments (Schedule Of Redeemable Financial Instruments) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Related Party Transaction [Line Items]
Outstanding balance	$ 18,679	$ 17,448
Accrued Interest	352	714
JKD Capital Partners I, LTD [Member]
Related Party Transaction [Line Items]
Outstanding balance	8,000	6,732
Accrued Interest	278	676
DGC Family Fintech Trust/CBF [Member]
Related Party Transaction [Line Items]
Outstanding balance	10,000	10,000
Accrued Interest	74	38
Via Nova Capital Group, LLC [Member]
Related Party Transaction [Line Items]
Outstanding balance	$ 679	$ 716

Debt (Narrative) (Details)

Debt (Narrative) (Details) - USD ($)		Apr. 10, 2020	Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Principal amount of debt outstanding			$ 43,658,000	$ 43,536,000
Payment of convertible debt			$ 1,461,000
Alesco Capital Trust I [Member] | Junior subordinated debt [Member]
Debt Instrument [Line Items]
Stated interest rate	[1]		6.75%
Sunset Financial Statutory Trust I [Member] | Junior subordinated debt [Member]
Debt Instrument [Line Items]
Fair value of common securities			$ 0
Stated interest rate	[1]		6.95%
8.00% Contingent Convertible Senior Notes Due 2022 [Member] | Contingent Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Principal amount of debt outstanding			$ 15,000,000	15,000,000
Stated interest rate			8.00%
Maturity	[2]		Mar. 31, 2022
Conversion price per unit			$ 1.45
Debt Instrument, Convertible, Conversion Ratio			10
Debt instrument, noncontrolling interests, convertible price			$ 14.50
8.00% Contingent Convertible Senior Notes Due 2018 [Member]
Debt Instrument [Line Items]
Conversion price per unit			30
8.00% Contingent Convertible Senior Notes Due 2019 [Member]
Debt Instrument [Line Items]
Conversion price per unit			$ 12
Contingency shares outstanding threshold for conversion			19.99%
8.00% Contingent Convertible Senior Notes Due 2019 [Member] | Contingent Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Principal amount of debt outstanding			$ 6,786,000	6,786,000
Stated interest rate			8.00%
Maturity	[3]		Sep. 25, 2019
Conversion price per unit			$ 12
MB Financial Bank, N.A. (2018 MB LOC) [Member]
Debt Instrument [Line Items]
Principal amount of debt outstanding			$ 0
Maturity date			Apr. 10, 2021
Undrawn commitment fee percentage			0.50%
Line of Credit Facility, possible request of reduction in borrowing commitment			$ 1,000,000
Line of Credit Facility, possible request of reduction in borrowing commitment multiple after initial request			$ 500,000
Line of Credit Facility, request reduction notice period			5 days
MB Financial Bank, N.A. (2018 MB LOC) [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread			6.00%
MB Financial Bank, N.A. (2018 MB LOC) [Member] | Credit Facility [Member]
Debt Instrument [Line Items]
Aggregate borrowing capacity			$ 7,500,000	$ 25,000,000
Maturity date				Apr. 10, 2020
Commitment fee amount				$ 250,000
2019 MB Revolver [Member]
Debt Instrument [Line Items]
Basis spread			6.00%
Undrawn commitment fee percentage			0.50%
Line of Credit Facility, possible request of reduction in borrowing commitment			$ 1,000,000
Line of Credit Facility, possible request of reduction in borrowing commitment multiple after initial request			$ 500,000
2019 MB Revolver [Member] | Scenario, Forecast [Member]
Debt Instrument [Line Items]
Commitment fee amount		$ 131,000
Undrawn commitment fee percentage		0.75%
2019 MB Revolver [Member] | Credit Facility [Member]
Debt Instrument [Line Items]
Maturity			Apr. 10, 2021
Aggregate borrowing capacity			$ 17,500,000
Legacy Texas [Member] | Credit Facility [Member]
Debt Instrument [Line Items]
Maturity			Nov. 15, 2019
Aggregate borrowing capacity			$ 12,500,000
Undrawn commitment fee percentage			0.25%
Commitment fee threshold			50.00%
Legacy Texas [Member] | Credit Facility [Member] | Via Nova Capital Group, LLC [Member]
Debt Instrument [Line Items]
Percentage of commitment amount deposit			2.00%
Legacy Texas [Member] | Credit Facility [Member] | LIBOR (with a floor of 1.50%) [Member]
Debt Instrument [Line Items]
Basis spread			4.00%
Legacy Texas [Member] | Credit Facility [Member] | LIBOR (with a floor of 1.50%) [Member] | Maximum [Member]
Debt Instrument [Line Items]
Basis spread			5.00%
[1]	The junior subordinated notes listed represent debt the Company owes to the two trusts noted above. The total par amount owed by the Company to the trusts is $49,614. However, the Company owns the common stock of the trusts in a total par amount of $1,489. The Company pays interest (and at maturity, principal) to the trusts on the entire $49,614 junior notes outstanding. However, the Company receives back from the trusts the pro rata share of interest and principal on the common stock held by the Company. These trusts are VIEs and the Company does not consolidate them even though the Company holds the common stock. The Company carries the common stock on its balance sheet at a value of $0. The junior subordinated notes are recorded at a discount to par. When factoring in the discount, the yield to maturity of the junior subordinated notes as of March 31, 2019 on a combined basis is 16.75% assuming the variable rate in effect on the last day of the reporting period remains in effect until maturity.
[2]	The holder of the 2017 Convertible Note may convert all or any part of the outstanding principal amount at any time prior to maturity into units of the Operating LLC at a conversion price of $1.45 per unit, subject to customary anti-dilution adjustments. Units of the Operating LLC not held by Cohen & Company Inc. may, with certain restrictions, be redeemed and exchanged into shares of the Common Stock on a ten-for-one basis. Therefore, the 2017 Convertible Note can be converted into Operating LLC units and then redeemed and exchanged into Common Stock at an effective conversion price of $14.50. See note 18 to our Annual Report on Form 10-K for the year ended December 31, 2018.
[3]	The holders of the 2013 Convertible Notes may convert all or any part of the outstanding principal amount at any time prior to maturity into shares of the Company's Common Stock, at a conversion price of $12.00 per share, subject to certain anti-dilution adjustments.

Debt (Debt Outstanding) (Detail

Debt (Debt Outstanding) (Details) $ / shares in Units, $ in Thousands		3 Months Ended
		Mar. 31, 2019USD ($)item$ / shares	Mar. 31, 2018	Dec. 31, 2018USD ($)
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 43,658		$ 43,536
Less unamortized debt issuance costs		(910)		(974)
Less unamortized discount	[1]	(25,343)		(25,401)
Long term debt less debt discount		$ 43,658		43,536
Redeemable noncontrolling interest, membership units not held, share ratio		10	10
Number of trusts holding notes | item		2
Contingent Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Long term debt less debt discount		$ 20,876		20,812
Junior subordinated debt [Member]
Debt Instrument [Line Items]
Junior subordinated notes	[1]	22,782		22,724
Junior subordinated notes		49,614
Ownership value of common stock of trusts		$ 1,489
Yield to maturities		16.75%
8.00% Contingent Convertible Senior Notes Due 2022 [Member] | Contingent Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 15,000		15,000
Interest Rate		8.00%
Maturity	[2]	Mar. 31, 2022
Debt Instrument, Convertible, Conversion Price | $ / shares		$ 1.45
Debt instrument, noncontrolling interests, convertible price | $ / shares		$ 14.50
Debt Instrument, Convertible, Conversion Ratio		10
8.00% Contingent Convertible Senior Notes Due 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Convertible, Conversion Price | $ / shares		$ 12
8.00% Contingent Convertible Senior Notes Due 2019 [Member] | Contingent Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 6,786		6,786
Interest Rate		8.00%
Maturity	[3]	Sep. 25, 2019
Debt Instrument, Convertible, Conversion Price | $ / shares		$ 12
Alesco Capital Trust I [Member] | Junior subordinated debt [Member]
Debt Instrument [Line Items]
Junior subordinated notes	[1]	$ 28,125		28,125
Interest Rate	[1]	6.75%
Sunset Financial Statutory Trust I [Member] | Junior subordinated debt [Member]
Debt Instrument [Line Items]
Junior subordinated notes	[1]	$ 20,000		$ 20,000
Interest Rate	[1]	6.95%
Fair value of common securities		$ 0
2019 MB Revolver [Member] | Credit Facility [Member]
Debt Instrument [Line Items]
Maturity		Apr. 10, 2021
Legacy Texas [Member] | Credit Facility [Member]
Debt Instrument [Line Items]
Maturity		Nov. 15, 2019
[1]	The junior subordinated notes listed represent debt the Company owes to the two trusts noted above. The total par amount owed by the Company to the trusts is $49,614. However, the Company owns the common stock of the trusts in a total par amount of $1,489. The Company pays interest (and at maturity, principal) to the trusts on the entire $49,614 junior notes outstanding. However, the Company receives back from the trusts the pro rata share of interest and principal on the common stock held by the Company. These trusts are VIEs and the Company does not consolidate them even though the Company holds the common stock. The Company carries the common stock on its balance sheet at a value of $0. The junior subordinated notes are recorded at a discount to par. When factoring in the discount, the yield to maturity of the junior subordinated notes as of March 31, 2019 on a combined basis is 16.75% assuming the variable rate in effect on the last day of the reporting period remains in effect until maturity.
[2]	The holder of the 2017 Convertible Note may convert all or any part of the outstanding principal amount at any time prior to maturity into units of the Operating LLC at a conversion price of $1.45 per unit, subject to customary anti-dilution adjustments. Units of the Operating LLC not held by Cohen & Company Inc. may, with certain restrictions, be redeemed and exchanged into shares of the Common Stock on a ten-for-one basis. Therefore, the 2017 Convertible Note can be converted into Operating LLC units and then redeemed and exchanged into Common Stock at an effective conversion price of $14.50. See note 18 to our Annual Report on Form 10-K for the year ended December 31, 2018.
[3]	The holders of the 2013 Convertible Notes may convert all or any part of the outstanding principal amount at any time prior to maturity into shares of the Company's Common Stock, at a conversion price of $12.00 per share, subject to certain anti-dilution adjustments.

Debt (Schedule Of Interest Expe

Debt (Schedule Of Interest Expense By Debt Instrument) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Debt Instrument [Line Items]
Interest income (expense)	$ 1,859	$ 1,819
Junior subordinated notes [Member]
Debt Instrument [Line Items]
Interest income (expense)	880	821
2013 Convertibe Notes [Member]
Debt Instrument [Line Items]
Interest income (expense)	134	203
2017 Convertible Note [Member]
Debt Instrument [Line Items]
Interest income (expense)	360	354
2018 MB LOC/2019 MB Revolver [Member]
Debt Instrument [Line Items]
Interest income (expense)	92
Legacy Texas [Member]
Debt Instrument [Line Items]
Interest income (expense)	4
Redeemable Financial Instrument - DGC Family Fintech Trust / CBF [Member]
Debt Instrument [Line Items]
Interest income (expense)	148	110
Redeemable Financial Instrument - JKD Capital Partners I LTD [Member]
Debt Instrument [Line Items]
Interest income (expense)	278	$ 331
Redeemable Financial Instrument - ViaNova Capital Group, LLC [Member]
Debt Instrument [Line Items]
Interest income (expense)	$ (37)

Equity (Narrative) (Details)

Equity (Narrative) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)shares	Mar. 31, 2018USD ($)shares	Dec. 31, 2018shares
Permanent Equity [Line Items]
Ratio of Common Stock to membership units	0.1
Series E Preferred Stock [Member]
Permanent Equity [Line Items]
Ratio of shares to vote	10
Preferred Stock, shares outstanding | shares	4,983,557		4,983,557
10b5-1 Plan [Member]
Permanent Equity [Line Items]
Repurchase amount authorized	$ 2,000
Purchase of common stock, shares | shares	7,890	7,270
Treasury Stock, Value, Acquired, Par Value Method	$ 65	$ 71
Accumulated Other Comprehensive Income (Loss) [Member]
Permanent Equity [Line Items]
Redemption of non-controlling interest, net	14	7
Additional paid-in capital [Member]
Permanent Equity [Line Items]
Redemption of non-controlling interest, net	(133)	(84)
Non-controlling Interest [Member]
Permanent Equity [Line Items]
Redemption of non-controlling interest, net	$ 119	$ 77

Equity (Preferred Stock) (Detai

Equity (Preferred Stock) (Details) - Series E Preferred Stock [Member]	3 Months Ended
	Mar. 31, 2019shares	Dec. 31, 2018shares
Permanent Equity [Line Items]
Preferred Stock, Shares Outstanding	4,983,557	4,983,557
Ratio of shares to vote	10

Equity (Schedule Of Unrestricte

Equity (Schedule Of Unrestricted Common Stock Activity) (Details)	3 Months Ended
	Mar. 31, 2019shares
Equity [Abstract]
Shares, Beginning	1,110,717
Vesting of shares	56,639
Shares withheld and retired for employee taxes	(15,557)
Repurchase and retirement of common stock	(7,890)
Shares, Ending	1,143,909

Equity (Operating LLC Membershi

Equity (Operating LLC Membership Units) (Details)	3 Months Ended
	Mar. 31, 2019shares
Issuance of Units under UIS, net	331,920
Unit Issuance And Surrender Agreement [Member]
Issuance of Units under UIS, net	410,820
Retirement of Common Stock [Member]
Issuance of Units under UIS, net	(78,900)

Equity (Schedule Of Effects Of

Equity (Schedule Of Effects Of Changes In Ownership Interest Subsidiary) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Equity [Abstract]
Net income (loss) attributable to Cohen & Company Inc.	$ (1,202)	$ (1,474)
Increase / (decrease) in Cohen & Company Inc. paid in capital for the acquisition / (surrender) of additional units in consolidated subsidiary, net	133	84
Changes from net income / (loss) attributable to Cohen & Company Inc. and transfers (to) from non-controlling interest	$ (1,069)	$ (1,390)

Net Capital Requirements (Sched

Net Capital Requirements (Schedule Of Net Capital Requirements) (Details) $ in Thousands	Mar. 31, 2019USD ($)
JVB's [Member]
Net Capital Requirements [Line Items]
Actual Net Capital or Liquid Capital	$ 51,111
Excess	50,782
Cohen and Company Financial Limited [Member]
Net Capital Requirements [Line Items]
Actual Net Capital or Liquid Capital	919
Amount Required	869
Excess	$ 50

Earnings _ (Loss) Per Common _3

Earnings / (Loss) Per Common Share (Schedule of Earnings / (Loss) Per Common Share) (Details) $ / shares in Units, $ in Thousands		3 Months Ended
		Mar. 31, 2019USD ($)$ / sharesshares	Mar. 31, 2018USD ($)$ / sharesshares
Earnings Per Share [Line Items]
Net income / (loss) attributable to Cohen & Company | $		$ (1,202)	$ (1,474)
Add/ (deduct): Income / (loss) attributable to non-controlling interest attributable to Operating LLC membership | $	[1]	(622)	(677)
Add / (deduct): Adjustment | $	[2]	53	7
Net income / (loss) on a fully converted basis | $		$ (1,771)	$ (2,144)
Weighted average common shares outstanding - Basic		1,133,166	1,172,476
Unrestricted Operating LLC membership units exchangeable into Cohen & Company shares	[1]	532,409	532,409
Weighted average common shares outstanding - Diluted	[3]	1,665,575	1,704,885
Net income / (loss) per common share - Basic | $ / shares		$ (1.06)	$ (1.26)
Net income / (loss) per common share - Diluted | $ / shares		$ (1.06)	$ (1.26)
Redeemable noncontrolling interest, membership units not held, share ratio		10	10
Antidilutive securities excluded from computation of earnings per share		59,182	26,691
Convertible Debt Securities [Member] | 8.00% Contingent Convertible Senior Notes Due 2019 [Member]
Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share		565,469	274,917
Convertible Debt Securities [Member] | 8.00% Contingent Convertible Senior Notes Due 2022 [Member]
Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share		1,034,483	1,034,483
[1]	The Operating LLC membership units not held by Cohen & Company Inc. (that is, those held by the non-controlling interest for the three months ended March 31, 2019 and 2018) may be redeemed and exchanged into shares of the Company on a ten-for-one basis. The Operating LLC membership units not held by Cohen & Company Inc. are redeemable, at the member’s option at any time, for (i) cash in an amount equal to the average of the per share closing prices of the Common Stock for the ten consecutive trading days immediately preceding the date the Company receives the member’s redemption notice, or (ii) at the Company’s option, one tenth of a share of the Common Stock, subject, in each case, to appropriate adjustment upon the occurrence of an issuance of additional shares of the Common Stock as a dividend or other distribution on the Company’s outstanding Common Stock, or a further subdivision or combination of the outstanding shares of the Common Stock. These units are not included in the computation of basic earnings per share. These units enter into the computation of diluted net income (loss) per common share when the effect is not anti-dilutive using the if-converted method.
[2]	An adjustment is included because the Company would have incurred a higher income tax expense or realized a higher income tax benefit, as applicable, if the Operating LLC membership units had been converted at the beginning of the period,.
[3]	For the three months ended March 31, 2019, weighted average common shares outstanding excludes (i) 59,182 shares representing restricted Common Stock and restricted Operating LLC membership units, which when vested can be converted into Common Stock, (ii) 565,469 shares from the assumed conversion of the 2013 Convertible Notes, and (iii) 1,034,483 shares from the assumed conversion of the 2017 Convertible Note because the inclusion of such shares would be anti-dilutive. For the three months ended March 31, 2018, weighted average common shares outstanding excludes (i) 26,691 shares representing restricted Common Stock, (ii) 274,917 shares from the assumed conversion of the 2013 Convertible Notes, and (iii) 1,034,483 shares from the assumed conversion of the 2017 Convertible Note because the inclusion of such shares would be anti-dilutive.

Segment And Geographic Inform_3

Segment And Geographic Information (Narrative) (Details)	3 Months Ended
	Mar. 31, 2019segment
Segment And Geographic Information [Abstract]
Number of Operating Segments	3

Segment And Geographic Inform_4

Segment And Geographic Information (Schedule Of Segment Reporting Information) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting Information [Line Items]
Principal transactions and other income	$ 414	$ 647
Total revenues	11,145	9,338
Total operating expenses	11,208	9,698
Operating income (loss)	(63)	(360)
Interest income (expense)	(1,859)	(1,819)
Income (loss) from equity method affiliates	(8)
Income (loss) before income tax expense (benefit)	(1,930)	(2,179)
Income tax expense (benefit)	(106)	(28)
Net income (loss)	(1,824)	(2,151)
Less: Net income (loss) attributable to the non-controlling interest	(622)	(677)
Net income (loss) attributable to Cohen & Company Inc.	(1,202)	(1,474)
Depreciation and amortization (included in total operating expense)	81	61
Operating Segments [Member]
Segment Reporting Information [Line Items]
Principal transactions and other income	414	647
Total revenues	11,145	9,338
Total operating expenses	9,373	8,140
Operating income (loss)	1,772	1,198
Interest income (expense)	13
Income (loss) from equity method affiliates	(8)
Income (loss) before income tax expense (benefit)	1,777	1,198
Net income (loss)	1,777	1,198
Net income (loss) attributable to Cohen & Company Inc.	1,777	1,198
Depreciation and amortization (included in total operating expense)	6	17
Unallocated [Member]
Segment Reporting Information [Line Items]
Total operating expenses	1,835	1,558	[1]
Operating income (loss)	(1,835)	(1,558)	[1]
Interest income (expense)	(1,872)	(1,819)	[1]
Income (loss) before income tax expense (benefit)	(3,707)	(3,377)	[1]
Income tax expense (benefit)	(106)	(28)	[1]
Net income (loss)	(3,601)	(3,349)	[1]
Less: Net income (loss) attributable to the non-controlling interest	(622)	(677)	[1]
Net income (loss) attributable to Cohen & Company Inc.	(2,979)	(2,672)	[1]
Depreciation and amortization (included in total operating expense)	75	44	[1]
Capital Markets [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Principal transactions and other income	1
Total revenues	8,730	6,887
Total operating expenses	7,458	6,651
Operating income (loss)	1,272	236
Interest income (expense)	76
Income (loss) before income tax expense (benefit)	1,348	236
Net income (loss)	1,348	236
Net income (loss) attributable to Cohen & Company Inc.	1,348	236
Depreciation and amortization (included in total operating expense)	5	16
Asset Management [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Principal transactions and other income	97	204
Total revenues	2,099	2,008
Total operating expenses	1,815	1,393
Operating income (loss)	284	615
Interest income (expense)	(63)
Income (loss) before income tax expense (benefit)	221	615
Net income (loss)	221	615
Net income (loss) attributable to Cohen & Company Inc.	221	615
Depreciation and amortization (included in total operating expense)	1	1
Principal Investing [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Principal transactions and other income	316	443
Total revenues	316	443
Total operating expenses	100	96
Operating income (loss)	216	347
Income (loss) from equity method affiliates	(8)
Income (loss) before income tax expense (benefit)	208	347
Net income (loss)	208	347
Net income (loss) attributable to Cohen & Company Inc.	208	347
Net Trading [Member]
Segment Reporting Information [Line Items]
Total revenue	8,729	6,191
Net Trading [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	8,729	6,191
Net Trading [Member] | Capital Markets [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	8,729	6,191
Asset Management [Member]
Segment Reporting Information [Line Items]
Total revenue	2,002	1,804
Asset Management [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	2,002	1,804
Asset Management [Member] | Asset Management [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	$ 2,002	1,804
New Issue And Advisory [Member]
Segment Reporting Information [Line Items]
Total revenue		696
New Issue And Advisory [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue		696
New Issue And Advisory [Member] | Capital Markets [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue		$ 696
[1]	Unallocated includes certain expenses incurred by indirect overhead and support departments (such as the executive, finance, legal, information technology, human resources, risk, compliance, and other similar overhead and support departments). Some of the items not allocated include: (1) operating expenses (such as cash compensation and benefits, equity-based compensation expense, professional fees, travel and entertainment, consulting fees, and rent) related to support departments excluding certain departments that directly support the Capital Markets business segment; (2) interest expense on debt; and (3) income taxes. Management does not consider these items necessary for an understanding of the operating results of these business segments and such amounts are excluded in business segment reporting to the chief operating decision maker.

Segment And Geographic Inform_5

Segment And Geographic Information (Reconciliation Of Assets From Segment To Consolidated) (Details) - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018
Segment Reporting, Asset Reconciling Item [Line Items]
Total Assets		$ 4,951,327	$ 5,654,452
Goodwill	[1]	7,992	7,992
Intangible assets	[1]	166	166
Operating Segments [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total Assets		4,938,312	5,649,883
Goodwill	[1]	7,992	7,992
Intangible assets	[1]	166	166
Operating Segments [Member] | Capital Markets [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total Assets		4,922,973	5,633,806
Goodwill	[1]	7,937	7,937
Intangible assets	[1]	166	166
Operating Segments [Member] | Asset Management [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total Assets		2,106	2,309
Goodwill	[1]	55	55
Operating Segments [Member] | Principal Investing [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total Assets		13,233	13,768
Unallocated [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total Assets	[2]	$ 13,015	$ 4,569
[1]	Goodwill and intangible assets are allocated to the Capital Markets and Asset Management business segments as indicated in the table above.
[2]	Unallocated assets primarily include: (1) amounts due from related parties; (2) furniture and equipment, net; and (3) other assets that are not considered necessary for an understanding of business segment assets and such amounts are excluded in business segment reporting to the chief operating decision maker.

Segment And Geographic Inform_6

Segment And Geographic Information (Revenue By Geographic Area) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 11,145	$ 9,338
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	10,087	7,902
United Kingdom & Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 1,058	$ 1,436

Supplemental Cash Flow Disclo_2

Supplemental Cash Flow Disclosure (Narrative) (Details) - USD ($) $ in Thousands	Jan. 01, 2019	Mar. 31, 2019	Mar. 31, 2018
Debt Conversion [Line Items]
Interest paid		$ 2,070	$ 1,635
Income taxes paid		4	0
Income tax refunds		48	0
Proceeds from redeemable financial instrument		1,268
Accrual in accounts payable and other accrued liabilities for dividends and distributions declared		335	342
Right-of-use asset - operating leases		8,081
Lease liability - operating leases		8,658
Increase in other receivables		(3,894)	(554)
Accounting Standards Update 2016-02 [Member]
Debt Conversion [Line Items]
Right-of-use asset - operating leases	$ 8,416
Lease liability - operating leases	8,860
Reduction in retained earnings from cumulative effect of adoption	20
Increase in other receivables	18
Reduction in other liabilities	$ 406
Additional paid-in capital [Member]
Debt Conversion [Line Items]
Redemption of non-controlling interest, net		133	84
Accumulated Other Comprehensive Income (Loss) [Member]
Debt Conversion [Line Items]
Redemption of non-controlling interest, net		(14)	(7)
Non-controlling Interest [Member]
Debt Conversion [Line Items]
Redemption of non-controlling interest, net		$ (119)	$ (77)

Related Party Transactions (Nar

Related Party Transactions (Narrative) (Details) - USD ($) $ in Thousands	Sep. 29, 2017	Oct. 03, 2016	Jan. 31, 2019	Jul. 31, 2018	Jan. 31, 2017	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2015	Dec. 31, 2013
Related Party Transaction [Line Items]
Proceeds from redeemable financial instrument						$ 1,268
Company matching percent						50.00%
Percent of employees gross salary qualifying for matching contributions						3.00%
Company plan contributions						$ 91	$ 61
Insurance SPAC [Member]
Related Party Transaction [Line Items]
Investments / advances						3,775
Net gains (losses) in principal transactions and other income						$ (8)
EuroDekania [Member]
Related Party Transaction [Line Items]
Ownership percentage of equity method affiliate						31.00%
U.S. Insurance JV [Member]
Related Party Transaction [Line Items]
Ownership percentage of equity method affiliate						4.50%
SPAC Fund [Member]
Related Party Transaction [Line Items]
Ownership percentage of equity method affiliate						3.90%
EBC Family Trust [Member]
Related Party Transaction [Line Items]
Notes payable, related parties									$ 2,400
Value of shares issued									1,600
Related Party Transaction, Amounts of Transaction									$ 4,000
TBBK [Member]
Related Party Transaction [Line Items]
Interest Expense, Related Party						$ 0	414
JKD Capital Partners I, LTD [Member]
Related Party Transaction [Line Items]
Investments / advances		$ 6,000	$ 1,268		$ 1,000
CBF Cohen Bros. Financial [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction	$ 8,000
DGC Family Fintech Trust/CBF [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction	10,000
DGC Family Fintech Trust [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction	$ 2,000
Zucker and Moore, LLC [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party						24	24
Bezuco Capital, LLC [Member]
Related Party Transaction [Line Items]
Reduction in rent expenses						6	0
Insurance SPAC [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party						750
Related Party Transaction, Amounts of Transaction						10
COHN, LLC [Member] | Fin Tech Acquisition Corp II [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction				$ 2,513
Net gains (losses) in principal transactions and other income						$ (22)	$ 0
Sponsor Entities [Member] | Insurance SPAC [Member]
Related Party Transaction [Line Items]
Ownership percentage of equity method affiliate						26.80%
Contingent Convertible Senior Notes [Member] | Edward E. Cohen IRA [Member]
Related Party Transaction [Line Items]
Convertible notes purchased								$ 4,386

Related Party Transactions (Sch

Related Party Transactions (Schedule Of Related Party Transactions) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Related Party Transaction [Line Items]
Net trading	$ 8,729	$ 6,191
Principal transactions and other income	414	647
Income (loss) from equity method affiliates	(8)
CBF [Member]
Related Party Transaction [Line Items]
Interest expense (income) incurred	119	88
DGC Family Fintech Trust [Member]
Related Party Transaction [Line Items]
Interest expense (income) incurred	390	376
Duane Morris [Member]
Related Party Transaction [Line Items]
Professional fee and other operating	101	208
E.B.C. [Member]
Related Party Transaction [Line Items]
Interest expense (income) incurred	47	59
Edward E. Cohen IRA [Member]
Related Party Transaction [Line Items]
Interest expense (income) incurred	87	108
EuroDekania [Member]
Related Party Transaction [Line Items]
Asset management	86	33
Principal transactions and other income	291
Fin Tech Acquisition Corp II [Member]
Related Party Transaction [Line Items]
Principal transactions and other income		2
Fintech Acquisition Corp III [Member]
Related Party Transaction [Line Items]
Principal transactions and other income	3
Insurance SPAC [Member]
Related Party Transaction [Line Items]
Principal transactions and other income	4
Income (loss) from equity method affiliates	(8)
JKD Capital Partners I, LTD [Member]
Related Party Transaction [Line Items]
Interest expense (income) incurred	278	331
SPAC Fund [Member]
Related Party Transaction [Line Items]
Asset management	31
Principal transactions and other income	24
TBBK [Member]
Related Party Transaction [Line Items]
Net trading	2	11
U.S. Insurance JV [Member]
Related Party Transaction [Line Items]
Asset management	80
Principal transactions and other income	39
Affiliated Entity [Member]
Related Party Transaction [Line Items]
Net trading	2	11
Asset management	197	33
Principal transactions and other income	361	2
Income (loss) from equity method affiliates	(8)
Professional fee and other operating	101	208
Interest expense (income) incurred	$ 921	$ 962

Due From _ Due To Related Par_3

Due From / Due To Related Parties (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Related Party Transaction [Line Items]
Due from Related Parties	$ 625	$ 793
Employees & Other [Member]
Related Party Transaction [Line Items]
Due from Related Parties	$ 625	$ 793