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6. Income Taxes (Details - Reconciliation of Tax Rate) - USD ($)
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation    
Federal tax provision, at statutory rate of 34% $ 389,495 $ 751,773
State tax, net of federal tax benefit (50,107) (142,139)
Nondeductible expenses 5,762 (16,619)
R&D Credits (39,394) (43,664)
Foreign rate difference 17,063 (33,828)
Other 1,133 (72,803)
Change in valuation allowance 50,635 (407,787)
Provision for income taxes $ 374,587 $ 34,933