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5. WARRANTS (Details - Warrant activity) - USD ($)
9 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Jun. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]      
Warrants outstanding 0   666,667
Warrants exercised 666,667    
Proceeds from warrant exercises $ 6,667 $ 0