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13. SEGMENT INFORMATION (Details) - USD ($)
$ in Thousands
Nov. 30, 2019
May 31, 2019
Property and equipment, net $ 860 $ 1,045 [1]
US    
Property and equipment, net 821 1,005
Asia    
Property and equipment, net 39 40
Europe    
Property and equipment, net $ 0 $ 0
[1] The condensed consolidated balance sheet at May 31, 2019 has been derived from the audited consolidated financial statements at that date.