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Summary of Significant Accounting Policies - Schedule of Basic Earnings Per Common Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Accounting Policies [Abstract]        
Numerator - net loss $ (2,514) $ (5,692) $ (3,505) $ (9,214)
Denominator - weighted average number of shares outstanding, basic 21,709,392 20,273,347 21,283,078 19,806,759
Net loss per share, basic and diluted $ (0.12) $ (0.28) $ (0.16) $ (0.47)