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Net (Loss) Income Per Share (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Dec. 31, 2017
Dec. 31, 2016
Earnings Per Share [Abstract]            
Net loss - basic and diluted $ (1,865,015) $ (1,484,964) $ (2,673,670) $ (2,522,669) $ (5,894,253) $ (1,452,776)
Weighted average shares outstanding - basic and diluted 6,882,316 6,715,574 6,882,316 6,715,246 6,452,581 5,577,856
Per share data:            
Basic and diluted $ (0.27) $ (0.22) $ (0.39) $ (0.38) $ (0.91) $ (0.26)