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INVENTORIES (Tables)
3 Months Ended
Oct. 31, 2020
Inventory Disclosure [Abstract]  
Schedule of inventories, net Inventories, net:
October 31,
2020
July 31,
2020
(In thousands)
Raw materials$13,554 $14,216 
Work-in-process337 253 
Finished goods938 885 
$14,829 $15,354