Quarterly report pursuant to Section 13 or 15(d)

Other long-term assets (Schedule of Other Long-Term Assets) (Details)

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Other long-term assets (Schedule of Other Long-Term Assets) (Details) - USD ($)
Sep. 30, 2018
Dec. 31, 2017
Goodwill:    
Goodwill $ 1,186,496 $ 1,186,496
Convertible Note Investment:    
Convertible note investment 200,000 200,000
Total other long-term assets gross 2,479,177 2,446,328
Other long-term assets, net 1,885,166 1,896,145
Patents [Member]    
Patents:    
Cost 1,092,681 1,059,832
Accumulated amortization $ (594,011) $ (550,183)