Investments - Additional Information (Detail) (USD $)	Dec. 31, 2013	Jun. 30, 2013
Fair Value Disclosures [Abstract]
Fair value of investments held	$ 25,984,437	$ 13,811,331
Cost basis of investments held	25,547,806	13,522,891
Market value of investments to Company's total assets	69.70%
Government Fund | Mutual funds
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amount as of conversion date held in trading mutual fund	$ 14,118,943