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Goodwill and Other Intangible Assets (Tables) (Patents [Member]) | 12 Months Ended
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Dec. 31, 2013
Patents [Member] |
Schedule of Patent Cost and Other Asset | Patent costs, which are included in other assets in the accompanying balance sheets, as of December 31 were as follows (in thousands):
|  | 2013 |  |  | 2012 |
Patent costs |  | $ | 3,170 |  |  | $ | 3,316 |
Accumulated amortization |  |  | (2,007 | ) |  |  | (1,984 | )
|  | $ | 1,163 |  |  | $ | 1,332 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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