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Securities Owned and Securities Sold, But Not Yet Purchased, at Fair Value (Detail) (USD $)
In Thousands, unless otherwise specified |
Sep. 30, 2012
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Dec. 31, 2011
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| Security Owned and Sold, Not yet Purchased, at Fair Value [Line Items] | ||
| Securities owned | $ 1,132 | $ 2,014 |
| Securities sold, but not yet purchased | 87 | 78 |
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Common stock and warrants
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| Security Owned and Sold, Not yet Purchased, at Fair Value [Line Items] | ||
| Securities owned | 177 | 191 |
| Securities sold, but not yet purchased | 87 | 78 |
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Restricted common stock and warrants
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| Security Owned and Sold, Not yet Purchased, at Fair Value [Line Items] | ||
| Securities owned | $ 955 | $ 1,823 |
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- Details
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- Definition
Fair value of financial instruments held by a broker-dealer for their own account (proprietary securities) for trading or investment purposes determined by management based upon quoted prices of a financial instrument with similar characteristics or on a valuation technique or model. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Fair value of financial instruments sold short by a broker-dealer for their own account (proprietary securities) for trading or investment purposes determined by management based upon quoted prices of a financial instrument with similar characteristics or on a valuation technique or model. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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