Benefit Plans 1 (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Weighted Average Assumptions [Line Items]
Allocated Share-based Compensation Expense	$ 2,905	$ 2,217	$ 2,049
Common Stock, Capital Shares Reserved for Future Issuance	18,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	7,500,000
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	7 years 0 months	7 years 0 months	7 years 0 months
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	2.30%	1.20%	1.60%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate	81.10%	76.50%	75.50%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%	0.00%
Cost of Sales [Member]
Weighted Average Assumptions [Line Items]
Allocated Share-based Compensation Expense	751	584	587
Selling, General and Administrative Expenses [Member]
Weighted Average Assumptions [Line Items]
Allocated Share-based Compensation Expense	1,718	1,325	1,182
Research and Development Expense [Member]
Weighted Average Assumptions [Line Items]
Allocated Share-based Compensation Expense	$ 436	$ 308	$ 280

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Aggregate number of common shares reserved for future issuance.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Weighted average expected volatility rate of share-based compensation awards.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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