Annual report pursuant to section 13 and 15(d)

Stockholders' Equity - Additional Information (Detail)

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Stockholders' Equity - Additional Information (Detail) (USD $)
1 Months Ended
May 31, 2009
Nov. 30, 2006
Class of Stock [Line Items]    
Stock issued during period, shares, restricted stock award, gross   3,198,105
Stock issued during period, additional shares issued 1,468,221  
Stock issued during period, shares, issued for services 226,290  
Stock issued during period, shares, other 56,596  
Equity method investment, ownership percentage 4.00%  
Common shares attributable to conversion of debt $ 4,000,000