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Weighted average assumptions of Stock options (DETAILS) (USD $)
3 Months Ended
Aug. 31, 2012
Aug. 31, 2011
Expected life in years 5.77 5.77
Assumed annual dividend growth rate 0.00% 0.00%
Expected volatility 188.00% 188.00%
Risk free interest rate 1.86% 1.86%
Expense as stock-based compensation $ 2,000 $ 2,000
weighted-average fair value of each option granted $ 2.35 $ 2.35