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Accounts Receivable (Tables) | 9 Months Ended
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Jul. 31, 2012
Accounts Receivable [Abstract] |
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] | Accounts receivable at July 31, 2012 and October 31, 2011 consisted of the following:
| July 31, 2012 |  | October 31, 2011
U.S. Government: |  |  |
Amount billed | $ | 371 |  |  | $ | 52 |
Unbilled recoverable costs | 1,142 |  |  | 1,012 |
| 1,513 |  |  | 1,064 |
Commercial Customers: |  |  |
Amount billed | 13,381 |  |  | 10,330 |
Unbilled recoverable costs | 5,346 |  |  | 10,556 |
| 18,727 |  |  | 20,886 |
| $ | 20,240 |  |  | $ | 21,950 |

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3, 4 -Article 5 + Details
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