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Loss Per Share (Tables)
12 Months Ended
Dec. 31, 2017
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
    Year ended     Three months ended     Year ended  
    September 30, 2016     December 31, 2016     December 31, 2017  
Net loss $ (12,652,194 ) $ (2,194,397 ) $ (21,467,341 )
                   
Weighted average shares used in basic and
   diluted computation (note)
  17,786,374     19,745,873     23,237,205  
                   
Loss per share – basic and diluted $ (0.71 ) $ (0.11 ) $ (0.92 )