INVENTORIES (Tables)
 12 Months Ended
Jun. 30, 2018
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
Components of inventories are as follows:
 
  
June 30,
 
  
2017
  
 
2018
 
       
Raw materials $15,781  $19,047 
Work in progress  19,525   26,425 
Finished goods  10,354   12,602 
         
  $45,660  $58,074