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SEGMENT AND CONCENTRATION INFORMATION (Details) - USD ($) $ in Thousands | Feb. 28, 2023 | May 31, 2022
--- | --- | ---
Property and equipment, net | $ 1,281 | $ 1,203
Asia |  |
Property and equipment, net | 50 | 47
United States |  |
Property and equipment, net | 1,229 | 1,156
Europe |  |
Property and equipment, net | $ 2 | $ 0

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