Major Customer and Geographic Information (Schedule of Revenue by Geographic Region) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 312,500	$ 754,800	$ 1,437,800	$ 1,902,400
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	204,200	155,700	515,100	446,100
South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		700	4,100	2,100
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	77,500	583,400	853,100	1,424,000
AUSTRALIA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 30,800	$ 15,000	$ 65,500	$ 30,200