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Selected Consolidated Financial Statement Information - Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Jun. 30, 2019
Inventories    
Raw materials $ 7,713 $ 5,547
Work in process 2,039 1,415
Finished goods 11,720 11,096
Inventories $ 21,472 $ 18,058