Other Current Assets (Details) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2012		Oct. 31, 2011
Other Current Assets [Abstract]
Advance payments to vendors	$ 2,261	[1]	$ 4,378	[1]
Interest Receivable	0	[2]	48	[2]
Notes Receivable	475	[3]	804	[3]
Prepaid Expenses and Other	1,991	[4]	2,236	[4]
Other Assets, Current	$ 4,727		$ 7,466

[1] Advance payments to vendors relate to inventory purchases.

[2] Interest receivable relates to amounts due on investments in U.S. Treasury securities.

[3] Current portion of long-term notes receivable.

[4] Primarily relates to other accounts receivable related to POSCO royalties and other prepaid vendor expenses including insurance, rent and lease payments.