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4. SECURITIES AVAILABLE-FOR-SALE (Details) - USD ($)
9 Months Ended 12 Months Ended
Mar. 31, 2018
Jun. 30, 2017
Fair value $ 0  
Securities Available-for-sale    
Amortized cost 123,600 $ 63,600
Gross unrealized gains 0 60,000
Gross unrealized losses (93,600) 0
Gross realized gains 0 0
Gross realized losses (30,000) 0
Fair value $ 0 $ 123,600