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Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2014 | Dec. 31, 2013
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Presentation of fair value of financial assets using the inputs |  |
Total financial assets | $ 223 | $ 733
Money market funds |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 223 | 733
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 223 | 733
Quoted Prices in Active Markets for Identical Assets (Level 1) | Money market funds |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 223 | 733
Significant Other Observable Inputs (Level 2) |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets |  |
Significant Other Observable Inputs (Level 2) | Money market funds |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets |  |
Significant Unobservable Inputs (Level 3) |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets |  |
Significant Unobservable Inputs (Level 3) | Money market funds |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets |  |

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
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Period Type: | duration