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Fair value measurements (Tables) | 12 Months Ended
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Dec. 31, 2014
Fair Value Disclosures [Abstract] |
Schedule of Financial Instruments Measured at Fair Value | The following table sets forth the financial instruments, measured at fair value, by level within the fair value hierarchy as of December 31, 2013 and 2014.
|  | Fair value measurements as at December 31, 2013 |
(In thousands) |  | Total |  |  | Quoted prices in active market for indentifical assets (Level 1) |  |  | Significant other observable inputs (Level 2) |  |  | Significant observable inputs (Level 3) |
Cash equivalent: time deposits with original maturities less than three months |  |  | 30,892 |  |  |  | — |  |  |  | 30,892 |  |  |  | — |
Short term investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Time deposits |  |  | 9,695 |  |  |  | — |  |  |  | 9,695 |  |  |  | — |
Investments in financial instruments |  |  | 31,298 |  |  |  | — |  |  |  | 31,298 |  |  |  | — |
Warrant liabilities |  |  | (2,186 | ) |  |  | — |  |  |  | (2,186 | ) |  |  | — |
|  |  | 69,699 |  |  |  | — |  |  |  | 69,699 |  |  |  | — |
|  | Fair value measurements as at December 31, 2014 |
(In thousands) |  | Total |  |  | Quoted prices in active market for indentifical assets (Level 1) |  |  | Significant other observable inputs (Level 2) |  |  | Significant observable inputs (Level 3) |
Cash equivalent: time deposits with original maturities less than three months |  |  | 31,117 |  |  |  | — |  |  |  | 31,117 |  |  |  | — |
Short term investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in financial instruments |  |  | 29,426 |  |  |  | — |  |  |  | 29,426 |  |  |  | — |
|  |  | 60,543 |  |  |  | — |  |  |  | 60,543 |  |  |  | — |

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring 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=36462937&loc=d3e19190-110258 + Details
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