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INVENTORIES (Tables)
9 Months Ended
Feb. 28, 2022
INVENTORIES  
Schedule of inventories

Inventories are comprised of the following (in thousands):

 

 

 

February 28,

 

 

 May 31,

 

 

 

2022

 

 

2021

 

Raw materials and sub-assemblies

 

$9,286

 

 

$5,859

 

Work in process

 

 

4,866

 

 

 

2,988

 

Finished goods

 

 

-

 

 

 

2

 

 

 

$14,152

 

 

$8,849