CONSOLIDATED BALANCE SHEETS [Parenthetical]	Nov. 30, 2011	May 31, 2011
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	14,095,620	14,095,620
Common stock, shares outstanding	12,930,620	12,930,620