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Goodwill and Intangible Assets Disclosure [Text Block] (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Details      
Goodwill $ 50,697   $ 50,697
Intangible Assets, Net (Excluding Goodwill) 14,308   $ 14,669
Amortization of Intangible Assets $ 361 $ 154