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Note 5 - Inventories - Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Jun. 30, 2017
Inventories:    
Raw materials $ 31,156 $ 32,421
Work-in-process 2,772 3,527
Finished goods 14,734 14,060
Total Inventories $ 48,662 $ 50,008