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Securities Owned and Securities Sold, but not yet Purchased (and Fair Value Measurement) (Tables)

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Schedule of Securities Owned/Sold But Not Yet Purchased

Securities Owned/Sold But Not Yet Purchased – These securities consist of securities classified as trading and AFS, as follows:

		March 31, 2018				December 31, 2017
Securities Owned
Trading securities		$	585			$	1,691
Available-for-sale debt securities			4,000				64,603
Total		$	4,585			$	66,294
Securities Sold, but not yet Purchased
Trading securities		$	—			$	950
Available-for-sale debt securities			—				—
Total		$	—			$	950

Schedule of Unrealized Gains, Losses and Fair Value of AFS Debt Securities

The following table summarizes unrealized gains, losses and fair value of the AFS debt securities:

		March 31, 2018				December 31, 2017
Cost		$	4,022			$	65,237
Gross unrealized gains in other comprehensive income			—				—
Gross unrealized losses in other comprehensive income			(22	)			(634	)
Fair value		$	4,000			$	64,603

X

- Definition

Tabular disclosure of fair value of investments in debt and equity securities in an unrealized loss position categorized neither as held-to-maturity nor trading securities.

+ References

No definition available.

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- Definition

Tabular disclosure of financial instruments held by a broker-dealer for its own account (proprietary securities) for trading or investment purposes that are carried at fair value including securities sold, not yet purchased.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 320
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=35711157&loc=d3e42546-110969

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611

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