Consolidated Balance Sheets - Unaudited (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Nov. 30, 2012	Aug. 31, 2012
Accounts receivable, reserves (in Dollars)	$ 1,705	$ 1,830
Preferred stock par value (in Dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in Dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	150,000,000	150,000,000
Common stock, shares issued	45,963,473	45,599,754
Common stock, shares outstanding	44,342,402	44,279,214
Treasury stock shares	1,621,071	1,320,540