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6. Income Taxes (Details - Unrecognized tax benefits) - USD ($)
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Reconciliation of unrecognized tax benefits    
Beginning Balance $ 168,523 $ 130,464
Gross increase or (decrease) 52,622 38,059
Ending Balance $ 221,145 $ 168,523