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4. SECURITIES AVAILABLE-FOR-SALE (Tables)
6 Months Ended
Dec. 31, 2017
Securities Available-for-sale  
Securities available-for-sale
    December 31, 2017
    Amortized cost     Gross unrealized gains     Gross unrealized losses     Gross realized gains     Gross realized losses     Fair value
                                   
Equity securities   123,600     $ -     $ (64,800)     $ -     $ -     $ 58,800
                                               

 

    June 30, 2017
    Amortized cost     Gross unrealized gains     Gross unrealized losses     Gross realized gains     Gross realized losses     Fair value
                                   
Equity securities   63,600     $ 60,000     $ -     $ -     $ -     $ 123,600