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INCOME TAXES (Details) - Income Tax Rate Reconciliation - USD ($)	12 Months Ended
	May. 31, 2015	May. 31, 2014
Income Tax Rate Reconciliation [Abstract]
Computed "expected" tax benefit	$ (226,024)	$ (148,760)
Increase (reduction) in income taxes resulting from:
Change in valuation allowance
State income taxes, net of federal benefit	$ (27,000)	$ (47,000)
Research and development tax credits	(63,000)	(26,000)
Permanent tax differences and other	1,000	11,000
Income tax benefit	$ (315,024)	$ (210,760)

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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