Assets and Liabilities, at Fair Value (Narrative) (Details) - USD ($)	12 Months Ended		24 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Commemorative coins, held at lower of cost or market	$ 1,518,000	$ 2,564,000	$ 1,518,000
Payments to acquire other investments	2,000,000	500,000	$ 2,500,000
Realized gains on cost method investment	$ 0	$ 0