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Significant Accounting Policies (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012 Segment	Dec. 31, 2011
Significant Accounting Policies (Textual) [Abstract]
Allowance for doubtful accounts	$ 0	$ 0
Number of business segment	1
Number of dilutive securities outstanding	0
Advance Commissions Amortization Period	12 months
Money Market Funds [Member] | Mutual Funds [Member] | Level 1 Inputs [Member]
Significant Accounting Policies (Additional Textual) [Abstract]
Cash equivalent fair value	$ 4,100,000	$ 9,200,000

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Advance commissions amortization period.

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- Definition

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5074-111524



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-Name Regulation S-X (SX)

-Number 210

-Section 02

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-Article 5



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-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.10)

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (a)

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-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 07-4

-Paragraph 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

-Name Statement of Financial Accounting Standard (FAS)

-Number 128

-Paragraph 40

-Subparagraph a

-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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