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Segment Information (Details Narrative)
$ in Thousands
12 Months Ended
Dec. 31, 2016
USD ($)
ReportableSegment
Dec. 31, 2015
USD ($)
Dec. 31, 2014
Number of reportable segments | ReportableSegment 3    
Total assets | $ $ 632,956 $ 600,173  
Customers In Canada [Member]      
Percentage of concentration risk 6.00%    
Customers Outside Of The Continental U.S. [Member] | Maximum [Member]      
Percentage of concentration risk   1.00% 1.00%
Billed Sales Gross [Member] | No Single Customer [Member] | Maximum [Member]      
Percentage of concentration risk 10.00% 10.00% 10.00%