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Significant Accounting Policies - Summary of Investments Values Based Upon Level 1and Level 2 (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Level 1 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Value of Investment	$ 39,848,176	$ 16,922,720
Level 2 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Value of Investment	$ 4,239,545	$ 3,650,561

X

- Definition

Value of investment.

+ References

No definition available.

+ Details

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Period Type:	instant

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- Details

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