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Note 4 - Inventories - Inventories (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Jun. 30, 2016
Inventories:    
Raw materials $ 32,421 $ 28,979
Work-in-process 3,527 4,418
Finished goods 14,060 10,744
Total Inventories $ 50,008 $ 44,141