Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Shareholders' Equity and Comprehensive Income (Loss) (Parenthetical)

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Consolidated Statements of Shareholders' Equity and Comprehensive Income (Loss) (Parenthetical) (USD $)
12 Months Ended
Aug. 31, 2011
Statement of Stockholders' Equity [Abstract]  
Issuance fees and expenses $ 142,500