Acquisitions (Details) (USD $)	12 Months Ended	3 Months Ended
	Oct. 31, 2013	Oct. 31, 2012 Versa [Member]	Dec. 20, 2012 Versa [Member]		Dec. 20, 2012 Versa [Member] Selling and Administrative Expenses [Member]
Business Acquisition [Line Items]
Ownership percentage prior to step acquisition			39.00%
Business acquisition, percentage of voting interests acquired			61.00%
Stock Issued During Period, Shares, Acquisitions	3,526,764
Business combination, step acquisition, equity interest in acquiree, remeasurement loss		$ 3,600,000
Cash and cash equivalents			357,000
Accounts receivable			1,133,000
Other current assets			23,000
Property, plant and equipment			480,000
Goodwill			4,075,000
In-process research and development			9,592,000
Other assets			101,000
Accounts payable			302,000
Other current liabilities			1,492,000
Deferred tax liabilities (1)			3,377,000	[1]
Other long-term liabilities			155,000
Total identifiable net assets			10,435,000
Business Acquisition, Transaction Costs					$ 100,000

[1] Classified in Long-term debt and other liabilities on the consolidated balance sheets.