Major Customer and Geographic Information (Revenue by Geographic Region) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 2,658,700	$ 2,537,400
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	701,600	856,300
South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	2,200
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		600
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	1,845,500	1,630,500
Australia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 109,400	$ 50,000