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Note 13. Investments - Investments - Equity securities without readily determinable fair value Textuals (Details) - USD ($)
3 Months Ended 6 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss $ 0   $ 0  
Trading Securities, Realized Gain (Loss) 0 $ 0 0 $ 0
Investment Owned, at Cost 2,000,000   2,000,000  
Other Assets | Preferred Stock        
Equity securities without readily determinable fair value $ 500,000   $ 500,000