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Other Intangible Assets | 3 Months Ended
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Mar. 31, 2014
Other Intangible Assets |
Other Intangible Assets | (9) Other Intangible Assets The carrying values of the company’s definite lived intangible assets as of March 31, 2014 and December 31, 2013, are as follows (in thousands):
|  | Patents |  | Non- Compete |  | Customer List |  | Total |
Estimated useful life |  | 14 years |  | 5 years |  | 5 years |  |  |
Gross amount at March 31, 2014 |  | $ | 429 |  | $ | 512 |  | $ | 2,046 |  | $ | 2,987 |
Accumulated amortization at March 31, 2014 |  | (429 | ) | (272 | ) | (1,059 | ) | (1,760 | )
Net balance at March 31, 2014 |  | $ | — |  | $ | 240 |  | $ | 987 |  | $ | 1,227 |
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 |
Amortization expense related to intangible assets was approximately $119,000 and $134,000 for the three-month periods ended March 31, 2014, and 2013, respectively. Future amortization as of March 31, 2014 will be approximately as follows (in thousands):
Remainder of: |  |  |
2014 |  | $ | 273 |
2015 |  | 318 |
2016 |  | 318 |
2017 |  | 318 |
Total |  | $ | 1,227 |

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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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