Note 13 - Supplemental Disclosure to Earnings (Loss) Per Common Share (Detail) - Weighted Average Shares Outstanding (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Nov. 30, 2011
Nov. 30, 2010
Basic 71,341 84,898
Diluted:    
Diluted 72,485 84,898
Stock Options [Member]
   
Diluted:    
Dilutive Securities (in Dollars) 456 0
Restricted Stock Units (RSUs) [Member]
   
Diluted:    
Dilutive Securities (in Dollars) 688 0