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Segment Information - Summary of Operations Within Geographic Areas (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues $ 43,488 $ 589,462
Europe [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 41,488 504,190
Asia and Pacific [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues $ 2,000 $ 85,272