Note 13 - Supplemental Disclosure to Earnings (Losses) Per Common Share (Detail) - Weighted-Average Shares Excluded From The Calculation Of Diluted Income
In Thousands, unless otherwise specified
3 Months Ended
Nov. 30, 2012
Nov. 30, 2011
Stock Options [Member]
   
Antidilutive Securities 406 2,371
Restricted Stock [Member]
   
Antidilutive Securities   643