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Intangible Assets | 3 Months Ended
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Mar. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets | Intangible Assets The details of intangible assets consist of the following (in thousands):
| March 31, 2014 |  | December 31, 2013
Internet domain names and technology | $ | 2,819 |  |  | $ | 2,813 |
Accumulated amortization | (2,470 | ) |  | (2,409 | )
Total | $ | 349 |  |  | $ | 404 |
Intangible assets have a useful life of 3 to 5 years. For the three months ended March 31, 2014 and 2013, amortization expense was $61,000 and $157,000, respectively. Future expected amortization expense related to intangible assets at March 31, 2014 is as follows (in thousands):
Remainder of 2014 | $ | 178 |
2015 | 171 |
Total | $ | 349 |
The expected amortization expense is an estimate. Actual amounts of amortization expense may differ from estimated amounts due to additional intangible asset acquisitions, impairment of intangible assets, accelerated amortization of intangible assets and other events.

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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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