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Revenue (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Disaggregation of Revenue [Line Items]    
Total product sales $ 10,986,297 $ 10,431,091
United States [Member]    
Disaggregation of Revenue [Line Items]    
Total product sales 9,559,142 8,626,517
Other [Member]    
Disaggregation of Revenue [Line Items]    
Total product sales $ 1,427,155 $ 1,804,574