Quarterly report pursuant to sections 13 or 15(d)

Condensed Consolidated Balance Sheet (Parenthetical)

v2.4.0.6
Condensed Consolidated Balance Sheet (Parenthetical) (USD $)
Feb. 29, 2012
May 31, 2011
Condensed Consolidated Balance Sheet [Abstract]    
Series B Convertible preferred stock, par value      
Series B Convertible preferred stock, shares authorized 400,000 400,000
Series B Convertible preferred stock, shares issued 144,800 311,800
Series B Convertible preferred stock, shares outstanding 144,800 311,800
Common stock, par value      
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares outstanding 28,107,956 22,290,982
Common stock, shares issued 28,307,956 22,490,982
Treasury stock, shares 200,000 200,000