7. INCOME TAXES (Details 1) - USD ($) $ in Thousands	12 Months Ended
May 31, 2020	May 31, 2019	May 31, 2018
Federal income taxes:
Current	$ 0	$ 0	$ 99
Deferred	0	0	0
State income taxes:
Current	(30)	(6)	(22)
Deferred	0	0	0
Foreign income taxes:
Current	(6)	(21)	(4)
Deferred	0	0	0
Income tax (expense) benefit	$ (36)	$ (27)	$ 73

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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