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Due from / Due to Related Parties - Schedule of Due from / Due to Related Parties (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Due From Due To Related Parties [Line Items]
Due from Related Parties	$ 452	$ 679
Deep Value GP [Member]
Due From Due To Related Parties [Line Items]
Due from Related Parties		29
Deep Value GP II [Member]
Due From Due To Related Parties [Line Items]
Due from Related Parties		61
Star Asia Manager [Member]
Due From Due To Related Parties [Line Items]
Due from Related Parties	98	50
Cohen Brothers Financial, LLC [Member]
Due From Due To Related Parties [Line Items]
Due from Related Parties	90	306
Employees and Other [Member]
Due From Due To Related Parties [Line Items]
Due from Related Parties	$ 264	$ 233

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- Definition

For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

+ References

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

-Publisher FASB

-Name FASB Interpretation (FIN)

-Number 46R

-Paragraph 16, 17

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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-Publisher FASB

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph k

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

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Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 57

-Paragraph 2

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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