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Inventory (Tables)
6 Months Ended
Dec. 31, 2018
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
Inventory consisted of the following (in thousands):
 
 
 
December 31,

2018
 
 
June 30,

2018
 
Raw materials
 
$
198
 
 
$
 
Work in process
 
 
41
 
 
 
 
Finished goods
 
 
40
 
 
 
 
Total inventory
 
$
279
 
 
$