Major Customer and Geographic Information (Schedule of Revenue by Geographic Region) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 637,500	$ 561,400	$ 1,563,000	$ 2,860,500
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	190,600	208,400	633,000	2,067,700
South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues				1,500
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		100	100	200
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	418,300	352,900	901,300	791,100
Australia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 28,600		$ 28,600