Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	May 31, 2014	Aug. 31, 2013
Accounts receivable, reserves (in Dollars)	$ 1,669	$ 1,644
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	48,713,635	48,110,740
Common stock, shares outstanding	42,016,212	43,324,410
Treasury stock shares	6,697,423	4,786,330