Subsequent events

12 Months Ended

Dec. 31, 2017

Subsequent Events [Abstract]

Subsequent Events [Text Block]

26. Subsequent events 

The Company evaluated subsequent events through the time of the filing of its Annual Report on Form 10-K. Other than as disclosed in these consolidated financial statements, the Company is not aware of any significant events that occurred subsequent to the balance sheet date but prior to the filing of this report that would have a material impact on its consolidated financial statements.