Note 3 - Inventories - Summary of Inventories (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Mar. 31, 2016
Raw materials $ 10,815 $ 9,433
Work-in-process 342 337
Finished goods 3,604 4,941
Less reserve (888) (694)
Total $ 13,873 $ 14,017