INVESTMENTS - Additional Information (Detail) (USD $)	Dec. 31, 2014		Jun. 30, 2014		Dec. 31, 2013
Schedule of Trading Securities and Other Trading Assets [Line Items]
Carrying value of investments held	$ 21,562,000
Cost basis of investments held	22,700,000
Other investments	2,413,000		1,413,000
Carrying value of investments to Company's total assets	69.50%
Trading securities, at fair value	17,015,000	[1]	17,817,000	[1]
Government Fund | Mutual funds
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading securities, at fair value					$ 14,100,000

[1] Unrealized and realized gains and losses on trading securities are included in earnings in the statement of operations.