7. INCOME TAXES (Details) - USD ($) $ in Thousands	12 Months Ended
May 31, 2018	May 31, 2017	May 31, 2016
Income Tax Disclosure [Abstract]
Domestic	$ 433	$ (5,663)	$ (6,794)
Foreign	22	35	19
Income (loss) before income tax benefit (expense)	$ 455	$ (5,628)	$ (6,775)

The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.

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