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Goodwill and Intangible Assets (Narrative) (Details) (USD $) | 9 Months Ended
--- | ---
Sep. 30, 2013 | Sep. 30, 2012
Goodwill [Line Items] |  |
Patent application costs | $ 72,000 | $ 103,000
Patent and patent acquisition costs | 2,500,000 | 0
Acquired patents and patent rights | 27,852,000 |
Goodwill | 12,221 |
Estimate income tax benefit | 9,200,000 |
Write-off of goodwill amount | 239,000 |
Customer list [Member] |  |
Goodwill [Line Items] |  |
Write-off amount, gross | 258,000 |
Write-off amount | 198,000 |
Non-compete agreement [Member] |  |
Goodwill [Line Items] |  |
Write-off amount, gross | 150,000 |
Write-off amount | $ 80,000 |
Minimum [Member] | Patents and Patent Rights [Member] |  |
Goodwill [Line Items] |  |
Useful Life | 2 years 6 months |
Maximum [Member] | Patents and Patent Rights [Member] |  |
Goodwill [Line Items] |  |
Useful Life | 7 years 6 months |

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- Definition Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Goodwill + References No definition available. + Details
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- Definition Indefinite Lived Intangible Assets Written Off Related To Sale Of Business Unit, Gross + References No definition available. + Details
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- Definition Patent and patent acquisition costs. + References No definition available. + Details
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- Definition Patent application costs. + References No definition available. + Details
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- Definition Amount of other assets expected to be realized or consumed before one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Details
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- Definition Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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- Definition Amount of write-off of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit associated with the sale of all or a portion of a reporting unit. + References No definition available. + Details
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- Definition Amount of other current and other deferred income tax expense (benefit) attributable to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32672-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a)-(b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
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