Quarterly report pursuant to Section 13 or 15(d)

Foreign Currency Translation (Details)

v3.19.1
Foreign Currency Translation (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Revenue from external customers    
Net sales $ 44,858 $ 40,552
Foreign operations    
Revenue from external customers    
Net sales $ 5,200 $ 5,400