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Financial Instruments (Tables) | 3 Months Ended
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Mar. 31, 2014
Fair Value Disclosures [Abstract] |
Presentation of fair value of financial assets using the inputs | The fair value of these financial assets was determined using the following inputs at March 31, 2014 and December 31, 2013 (in thousands):
| Fair Value Measurements at Reporting Date Using
|  |  | Quoted Prices in Active Markets for Identical Assets |  | Significant Other Observable Inputs |  | Significant Unobservable Inputs
| Total |  | (Level 1) |  | (Level 2) |  | (Level 3)
Balance at March 31, 2014 |  |  |  |  |  |  |
Money market funds | $ | 223 |  |  | $ | 223 |  |  | $ | — |  |  | $ | — |
Total | $ | 223 |  |  | $ | 223 |  |  | $ | — |  |  | $ | — |
Balance at December 31, 2013 |  |  |  |  |  |  |
Money market funds | $ | 733 |  |  | $ | 733 |  |  | $ | — |  |  | $ | — |
Total | $ | 733 |  |  | $ | 733 |  |  | $ | — |  |  | $ | — |

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring and/or nonrecurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19190-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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