Major Customer and Geographic Information (Details - Revenue by Geographic Region) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 575,100	$ 685,900	$ 1,766,400	$ 1,539,600
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	140,700	184,200	414,300	469,000
South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	600	0	600	1,600
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	200	0	200
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	409,900	229,300	1,286,600	757,200
AUSTRALIA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 23,900	$ 272,200	$ 64,900	$ 311,600