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Share-Based Compensation Plans (Tables) | 9 Months Ended
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Jul. 31, 2012
Note 9. Share-Based Compensation Plans [Abstract] |
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] | Share-based compensation reflected in the consolidated statements of operations were as follows:
| Three Months Ended July 31, |  | Nine Months Ended July 31,
| 2012 |  | 2011 |  | 2012 |  | 2011
Cost of product sales and revenues | $ | 153 |  |  | $ | 201 |  |  | $ | 369 |  |  | $ | 604 |
Cost of research and development contracts | 29 |  |  | 34 |  |  | 66 |  |  | 105 |
General and administrative expense | 416 |  |  | 98 |  |  | 873 |  |  | 989 |
Research and development expense | 76 |  |  | 108 |  |  | 208 |  |  | 349 |
Total share-based compensation | $ | 674 |  |  | $ | 441 |  |  | $ | 1,516 |  |  | $ | 2,047 |
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] | The following table summarizes stock option activity for the nine months ended July 31, 2012:
| Number of options |  | Weighted average option price ($)
Outstanding at October 31, 2011 | 3,320,558 |  |  | 8.25 |
Granted | 342,293 |  |  | 1.28 |
Cancelled | (506,045 | ) |  | 11.42 |
Outstanding at July 31, 2012 | 3,156,806 |  |  | 7.05 |

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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