6. Income Taxes (Details - Reconciliation of Tax Rate) - USD ($)	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation
Federal income tax (benefit), at statutory rate of 21% applied to earnings before income taxes and extraordinary items	$ 1,533,352	$ (438,706)
State tax, net of federal tax benefit	128,406	(50,881)
Nondeductible expenses	(45,345)	4,129
R&D Credits	(36,841)	(36,127)
Global intangible low-taxed income	31,060	0
Foreign rate difference	74,256	40,660
Other	53,943	666
Rate reduction	0	51,514
Change in valuation allowance	(358,530)	0
Provision (benefit) for income taxes	$ 1,380,301	$ (428,745)