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Number of Residential Transition Loans (RTLs).

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Contractual interest rate for funds borrowed, under the debt agreement.

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This item represents the aggregate value of each identified investment accounted for under the equity method of accounting based on the quoted market price for those investments in common stock for which a quoted market price is available.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Value of the other investment not readily marketable determined by management based upon fair value methods, including pricing of similar securities and valuation techniques, that was used to record the investment for financial reporting purposes.

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Other Recent Business Transactions Or Events (Narrative) (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) item $ / shares	Apr. 30, 2020 USD ($)	Jan. 31, 2020 USD ($)	Dec. 31, 2019 USD ($) $ / shares	Jan. 19, 2017 $ / shares
Schedule of Equity Method Investments [Line Items]
Impairment of goodwill	$ 7,883
Common Stock, par value \| $ / shares	$ 0.01			$ 0.01
Repayments of debt	$ 9,163
CK Capital Partners B.V. [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Quoted Market Value				$ 18
CK Capital Partners B.V. [Member] \| Daniel G. Cohen [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Quoted Market Value				17
AOI [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Quoted Market Value				1
LegacyTexas Bank [Member]
Schedule of Equity Method Investments [Line Items]
Number of Residential Transition Loans (RTLs) \| item	4
Par value of RTLs	$ 3,034
Fair value of RTLs	$ 2,956
IMXI [Member]
Schedule of Equity Method Investments [Line Items]
Share Price \| $ / shares	$ 17.00				$ 15.00
Series F Preferred Stock [Member] \| COHN, LLC [Member] \| Daniel G. Cohen [Member]
Schedule of Equity Method Investments [Line Items]
Common Stock, par value \| $ / shares	$ 0.00001
2020 Senior Notes [Member] \| JKD Investor And RN Capital Solutions LLC [Member]
Schedule of Equity Method Investments [Line Items]
Principal amount of debt outstanding			$ 4,500
Stated interest rate	12.00%
Edward E. Cohen IRA [Member]
Schedule of Equity Method Investments [Line Items]
Repayments of debt	$ 4,386
12.00% Non-convertible Senior Notes (2019 Senior Notes) [Member]
Schedule of Equity Method Investments [Line Items]
Principal amount of debt outstanding				$ 2,400
Subsequent Event [Member]
Schedule of Equity Method Investments [Line Items]
Loan under paycheck protection program		$ 2,200