Quarterly report pursuant to Section 13 or 15(d)

Long-Term Investments (Details)

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Long-Term Investments (Details)
3 Months Ended 6 Months Ended
Dec. 31, 2017
USD ($)
investment
Dec. 31, 2016
USD ($)
Dec. 31, 2017
USD ($)
investment
Dec. 31, 2016
USD ($)
Jun. 30, 2017
USD ($)
Equity Method Investments and Cost Method Investments [Abstract]          
Number of investments | investment 2   2    
Equity method investment $ 7,646,000   $ 7,646,000   $ 7,467,000
Cost method investment 500,000   500,000   500,000
Equity and cost method investment $ 8,146,000   $ 8,146,000   $ 7,967,000
Ownership percentage, 2nd investment 20.60%   20.60%    
Income (loss) from equity method investment $ 122,000 $ 93,000 $ 179,000 $ 79,000  
Ownership percentage, 1st investment 2.50%   2.50%