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Segment Reporting and Concentrations (Details 2) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long - lived assets $ 22,884 $ 15,138
United States [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long - lived assets 4,981 4,383
Canada [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long - lived assets 8,329 7,023
United Kingdom [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long - lived assets 2,071 2,045
Philippines [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long - lived assets 5,683 900
India [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long - lived assets 946 475
Sri Lanka [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long - lived assets 846 280
Israel [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long - lived assets 27 30
Germany [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long - lived assets 1 2
Foreign Countries [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long - lived assets $ 17,903 $ 10,755