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3. Property, Plant and Equipment (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Disclosure 3.Property Plant And Equipment Details Narrative Abstract        
Depreciation expense $ 1,200 $ 1,200 $ 3,471 $ 3,523