Major Customer and Geographic Information (Schedule of Revenue by Geographic Region) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 627,300	$ 516,100	$ 1,147,600	$ 925,500
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	107,000	225,800	290,400	442,400
South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues			1,400
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		100		100
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	505,100	290,200	840,600	483,000
Australia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 15,200		$ 15,200