6. Income Taxes (Details - Deferred Income Taxes) - USD ($)	Jun. 30, 2021	Jun. 30, 2020
Deferred tax asset:
Net operating losses	$ 170,649	$ 507,402
State tax	0	520
Lease accounting	7,035	10,078
Intangibles	84,831	38,154
Tax credits	133,451	346,091
Inventory reserve	30,591	103,450
Other, net	12,693	38,085
Total deferred tax assets	439,250	1,043,780
Deferred tax liabilities:
Deferred state taxes	(29,056)	(61,692)
State tax	(110)	0
Fixed asset	(22,536)	(43,900)
Total deferred tax liabilities	(51,702)	(105,592)
Less valuation allowance	0	0
Net deferred tax asset	$ 387,548	$ 938,188