6. Income Taxes (Details - Reconciliation of Tax Rate) - USD ($)	12 Months Ended
Jun. 30, 2018	Jun. 30, 2017
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation
Federal tax provision (benefit), at statutory rate of 34%	$ (799,696)	$ 389,495
State tax, net of federal tax benefit	(54,642)	(50,107)
Nondeductible expenses	6,753	5,762
R&D Credits	(36,733)	(39,394)
Foreign rate difference	(54,332)	17,063
Other	34,878	1,133
Rate reduction	661,629	0
Change in valuation allowance	55,170	50,635
Provision (benefit) for income taxes	$ (186,973)	$ 374,587

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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