Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Oct. 31, 2011	Oct. 31, 2010
Consolidated Balance Sheets [Abstract]
Allowance on receivables	$ 555	$ 393
Preferred stock, liquidation preference value	$ 64,020	$ 64,020
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	225,000,000	225,000,000
Common stock, shares issued	138,400,497	112,965,725
Common stock, shares outstanding	138,400,497	112,965,725
Treasury stock, shares	5,679	5,679