XML 54 R44.htm IDEA: XBRL DOCUMENT v3.20.4
7. INVENTORIES (Details) - USD ($)
$ in Thousands
Nov. 30, 2020
May 31, 2020
Inventory, Net [Abstract]    
Raw materials and sub-assemblies $ 6,170 $ 5,055
Work in process 2,884 2,917
Finished goods 3 17
Inventories $ 9,057 $ 7,989 [1]
[1] The condensed consolidated balance sheet at May 31, 2020 has been derived from the audited consolidated financial statements at that date.