Annual report pursuant to Section 13 and 15(d)

Reconciliation of Federal Statutory Income Tax Rate of 34 Percent to Effective Income Tax Rate (Detail)

v3.2.0.727
Reconciliation of Federal Statutory Income Tax Rate of 34 Percent to Effective Income Tax Rate (Detail)
12 Months Ended
May. 31, 2015
May. 31, 2014
Schedule Of Income Taxes [Line Items]    
Income tax provision at statutory rate 34.00% 34.00%
State income taxes, net 0.00% 0.40%
Rate change (0.60%) (9.60%)
Derivative gain/loss (1.20%)  
Valuation allowance (32.20%) (24.80%)
Total 0.00% 0.00%