Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Jul. 31, 2015	Oct. 31, 2014	[1]
Preferred stock, par value (in Dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	100,000	100,000
Preferred stock, shares issued	5,600	5,600
Preferred stock, liquidation preference (in Dollars)	$ 140,000	$ 140,000
Preferred stock, outstanding	5,600	5,600
Common Class A [Member]
Common stock, par value (in Dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	400,000,000	400,000,000
Common stock, shares issued	143,292,881	142,836,563
Common stock, shares held in Treasury	11,760,763	11,760,763
Common Class B [Member]
Common stock, par value (in Dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	60,000,000	60,000,000
Common stock, shares issued	15,676,847	15,497,543
Common stock, shares held in Treasury	691,748	691,748

[1] Derived from the audited balance sheet as of October 31, 2014.