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Selected Consolidated Financial Statement Information - Inventories (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Jun. 30, 2019
Inventories    
Raw materials $ 6,938 $ 5,547
Work in process 2,228 1,415
Finished goods 10,323 11,096
Inventories $ 19,489 $ 18,058