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Significant Accounting Policies (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Cash equivalents
Estimated useful lives of patents 20 years  
Advertising costs $ 17,165 28,613
Engineering and development costs $ 7,097 $ 5,866
Options granted 5,000 10,980,000
FDIC insured limit $ 250,000  
Shares excluded from computation loss per share 11,502,500 12,518,336
Net 30 Day [Member]    
Percentage of Base Transaction Fee for Invoices 3.00%  
Net 60 Day [Member]    
Percentage of Surcharge for Invoices 0.25%  
Net 90 Day [Member]    
Percentage of Surcharge for Invoices 0.50%  
Net 120 Day [Member]    
Percentage of Surcharge for Invoices 0.70%  
Minimum [Member]    
Property and equipment, estimated useful life 3 years  
Maximum [Member]    
Property and equipment, estimated useful life 5 years