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

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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