XML 62 R51.htm IDEA: XBRL DOCUMENT v3.8.0.1
Segment Information and Foreign Operations - Product Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Revenue by product type        
Revenue $ 28,168 $ 21,872 $ 72,341 $ 61,080
Substrates        
Revenue by product type        
Revenue 22,377 17,050 58,095 49,629
Raw Materials And Others        
Revenue by product type        
Revenue $ 5,791 $ 4,822 $ 14,246 $ 11,451