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Intangible Assets (Tables) | 3 Months Ended
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Mar. 31, 2014
Intangible Assets [Abstract] |
Schedule of Other Intangible Assets | Intangible assets are comprised of the following:
|  |  |  | March 31, 2014 |  |  | December 31, 2013 |
|  | Useful Life |  | Gross Carrying Amount |  |  | Accumulated Amortizaton |  |  | Net Carrying Amount |  |  | Gross Carrying Amount |  |  | Accumulated Amortizaton |  |  | Net Carrying Amount |
Acquired intangibles- customer lists and non-compete agreements |  | 5 -10 years |  | $ | 1,997,300 |  |  | $ | 1,390,895 |  |  | $ | 606,405 |  |  | $ | 1,997,300 |  |  | $ | 1,343,819 |  |  | $ | 653,481 |
Acquired intangibles-patents and patent rights |  | Varied (1) |  |  | 30,356,567 |  |  |  | 3,122,461 |  |  |  | 27,234,106 |  |  |  | 30,356,164 |  |  |  | 2,042,083 |  |  |  | 28,314,081 |
Patent application costs |  | Varied (2) |  |  | 1,004,246 |  |  |  | 355,124 |  |  |  | 649,122 |  |  |  | 965,523 |  |  |  | 330,494 |  |  |  | 635,029 |
|  |  |  | $ | 33,358,113 |  |  | $ | 4,868,480 |  |  | $ | 28,489,633 |  |  | $ | 33,318,987 |  |  | $ | 3,716,396 |  |  | $ | 29,602,591 |
(1) acquired patents and patent rights are amortized over their expected useful life which is generally the remaining legal life of the patent. As of March 31, 2014, the weighted average remaining useful life of these assets in service was approximately 6.5 years. (2) patent application costs are amortized over their expected useful life which is generally the remaining legal life of the patent. As of March 31, 2014, the weighted average remaining useful life of these assets in service was approximately 8.9 years.
Schedule of Estimated Future Amortization of Intangible Assets | Approximate expected intangible asset amortization for each of the five succeeding fiscal years is as follows:
2015 |  | $ | 4,499,000 |
2016 |  | $ | 4,347,000 |
2017 |  | $ | 4,278,000 |
2018 |  | $ | 4,236,000 |
2019 |  | $ | 3,870,000 |

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- Definition Schedule Of Other Intangible Assets By Major Class [Table Text Block] + References No definition available. + Details
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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived 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 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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