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Investments in Available-for-Sale Securities
12 Months Ended
Dec. 31, 2017
Available-For-Sale Securities [Abstract]  
Available For Sale Securities Disclosure [Text Block]
6.  Investments in Available-for-Sale Securities
 
The Company maintained an investment portfolio consisting of available-for-sale-securities during the period ended December 31, 2016, which it had acquired through the Recapitalization. All available-for-sale-securities either matured or were liquidated prior to December 31, 2016.