Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

v3.19.1
Inventories (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Inventories      
Finished goods $ 10,001   $ 9,194
Work in process 387   454
Raw materials 2,732   2,334
Inventories 13,120   $ 11,982
Inventory write-downs $ 444 $ 354