Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	May 31, 2014	Aug. 31, 2013
Receivables reserves (in Dollars)	$ 8,469	$ 4,894	[1]
Preferred stock par value (in Dollars per share)	$ 1.00	$ 1.00	[1]
Preferred stock, shares authorized	2,000,000	2,000,000	[1]
Preferred Stock, shares issued	0	0	[1]
Preferred Stock, shares outstanding	0	0	[1]
Common Class A [Member]
Common stock par value (in Dollars per share)	$ 0.10	$ 0.10	[1]
Common stock, shares authorized	30,000,000	30,000,000	[1]
Common stock, shares issued	15,180,960	15,129,524	[1]
Common stock, shares outstanding	15,180,960	15,129,524	[1]
Common Class B [Member]
Common stock par value (in Dollars per share)	$ 0.10	$ 0.10	[1]
Common stock, shares authorized	20,000,000	20,000,000	[1]
Common stock, shares issued	4,860,519	4,873,277	[1]
Common stock, shares outstanding	4,860,519	4,873,277	[1]

[1] Derived from audited financial statements