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Segment and Geographic Information (Revenue By Geographic Area) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Revenues	$ 57,517	$ 95,240	$ 100,331
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Revenues	44,043	78,597	90,475
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Revenues	11,178	16,643	9,856
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Revenues	2,296
Institutional Financial Markets, Inc. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Revenues	$ (11,502)	$ 2,666	$ (5,480)

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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