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7. Segment Information (Tables)
 6 Months Ended
Jun. 30, 2017
Segment Information Tables  
Schedule of segment information
    For the three months ended June 30,     For the six months ended June 30,      
    2017     2016     2017     2016  
Revenues                        
North America   $ 35,465     $ 32,038     $ 65,418     $ 60,090  
India     5,299       1,021       6,920       6,295  
    Total revenues   $ 40,764     $ 33,059     $ 72,338     $ 66,385  
                                 
Cost of goods sold                                
North America   $ 34,359     $ 29,624     $ 65,008     $ 55,783  
India     4,700       1,491       6,212       6,572  
    Total cost of goods sold   $ 39,059     $ 31,115     $ 71,220     $ 62,355  
                                 
Gross profit (loss)                                
North America   $ 1,106     $ 2,414     $ 410     $ 4,307  
India     599       (470 )     708       (277 )
Total gross profit   $ 1,705     $ 1,944     $ 1,118     $ 4,030  
Schedule of segment assets
    As of      
    June 30,     December 31,  
    2017     2016  
             
North America   $ 65,615     $ 67,279  
India     13,803       10,531  
    Total Assets   $ 79,418     $ 77,810