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Other Intangible Assets | 12 Months Ended
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Dec. 31, 2013
Other Intangible Assets |
Other Intangible Assets | (5) Other Intangible Assets The carrying values of the Company’s definite-lived intangible assets as of December 31, 2013 and 2012, are as follows (in thousands):
|  | Patents |  | Non- Compete |  | Customer List |  | Total |
Estimated useful life |  | 14 years |  | 5 years |  | 5 years |  |  |
Gross amount at December 31, 2013 |  | $ | 429 |  | $ | 512 |  | $ | 2,046 |  | $ | 2,987 |
Accumulated amortization at December 31, 2013 |  | (429 | ) | (249 | ) | (963 | ) | (1,641 | )
Net balance at December 31, 2013 |  | $ | — |  | $ | 263 |  | $ | 1,083 |  | $ | 1,346 |
Gross amount at December 31, 2012 |  | $ | 429 |  | $ | 512 |  | $ | 2,306 |  | $ | 3,247 |
Accumulated amortization at December 31, 2012 |  | (429 | ) | (156 | ) | (578 | ) | (1,163 | )
Net balance at December 31, 2012 |  | $ | — |  | $ | 356 |  | $ | 1,728 |  | $ | 2,084 |
Amortization expense related to intangible assets was approximately $478,000, $164,000 and $195,000 for the years ended December 31, 2013, 2012 and 2011, respectively. Future amortization for the years ending December 31 will be approximately (in thousands):
2014 |  | 393 |
2015 |  | 318 |
2016 |  | 318 |
2017 |  | 317 |
Total: |  | $ | 1,346 |

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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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