SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - Options-pricing model assumptions	12 Months Ended
	May 31, 2014	May 31, 2013
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - Options-pricing model assumptions [Line Items]
Dividend yield	0.00%	0.00%
Expected life	3 years 6 months	3 years 6 months
Minimum [Member]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - Options-pricing model assumptions [Line Items]
Expected volatility	48.65%	70.59%
Risk free interest rate	0.84%	0.51%
Maximum [Member]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - Options-pricing model assumptions [Line Items]
Expected volatility	49.85%	70.70%
Risk free interest rate	1.155%	0.53%