Quarterly report pursuant to Section 13 or 15(d)

Assets and Liabilities, at Fair Value (Narrative) (Details)

v3.3.1.900
Assets and Liabilities, at Fair Value (Narrative) (Details) - USD ($)
3 Months Ended 6 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Jun. 30, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]          
Commemorative coins, held at lower of cost or market $ 76,000   $ 76,000   $ 1,518,000
Realized gains on cost method investment 0 $ 0 0 $ 0  
Fair Value, Measurements, Nonrecurring | Carrying Amount          
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]          
Cost method investment $ 4,800,000   $ 4,800,000