Major Customer and Geographic Information (Schedule of Revenue by Geographic Region) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 754,800	$ 637,500	$ 1,902,400	$ 1,563,000
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	155,700	190,600	446,100	633,000
South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	700		2,100
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues				100
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	583,400	418,300	1,424,000	901,300
Australia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 15,000	$ 28,600	$ 30,200	$ 28,600