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Acquired Intangible Assets | 12 Months Ended
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Oct. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract] |
Acquired Intangible Assets | Acquired Intangible Assets Following is a summary of acquired intangible assets as of October 31, 2013 and 2012, which were acquired in connection with the acquisitions of SMP Data Communications and AOS, excluding assets written-off as impaired:
| October 31, 2013
| Gross carrying amount |  | Weighted- average amortization period in years |  | Accumulated amortization
Amortizing intangible assets: |  |  |  |  |
Developed technology | $ | 2,373,447 |  |  | 1.0 |  | $ | (2,358,318 | )
Customer list | 96,355 |  |  | 1.0 |  | (77,084 | )
Total | $ | 2,469,802 |  |  |  |  | $ | (2,435,402 | )
| October 31, 2012
| Gross carrying amount |  | Weighted- average amortization period in years |  | Accumulated amortization
Amortizing intangible assets: |  |  |  |  |
Developed technology | $ | 2,373,447 |  |  | 1.3 |  | $ | (2,310,155 | )
Customer list | 96,355 |  |  | 2.0 |  | (57,813 | )
Total | $ | 2,469,802 |  |  |  |  | $ | (2,367,968 | )
Aggregate amortization expense for amortizing intangible assets was $69,733, $134,201 and $430,807 for the years ended October 31, 2013, 2012 and 2011, respectively. Estimated amortization expense for the next year (the acquired intangible assets will be fully amortized in fiscal year 2014) is $34,400. Amortization of intangible assets is calculated using an accelerated method or a straight-line method over the estimated useful lives of the intangible assets.

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
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