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Fair Value Measurements | 12 Months Ended
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Dec. 31, 2013
Fair Value Disclosures [Abstract] |
Fair Value Measurements | Fair Value Measurements The company follows ASC 820, “Fair Value Measurements and Disclosures,” (“ASC 820”) for the company’s financial assets and liabilities that are re-measured and reported at fair value at each reporting period, and are re-measured and reported at fair value at least annually using a fair value hierarchy that is broken down into three levels. Level inputs are as defined as follows: Level 1 — quoted prices in active markets for identical assets or liabilities. Level 2 — other significant observable inputs for the assets or liabilities through corroboration with market data at the measurement date. Level 3 — significant unobservable inputs that reflect management’s best estimate of what market participants would use to price the assets or liabilities at the measurement date. The company categorized its cash equivalents and marketable securities as Level 1 inputs. The valuations for Level 1 were determined based on a “market approach” using quoted prices in active markets for identical assets. Valuation of these assets does not require a significant degree of judgment. The company categorized its warrants potentially settleable in cash as Level 2 inputs. The warrants are measured at market value on a recurring basis and are being marked to market each quarter-end until they are completely settled. The warrants are valued using an appropriate pricing model, using assumptions consistent with our application of ASC 718. The contingent purchase price consideration is categorized as Level 3 inputs and is measured at its estimated fair value on a recurring basis and is adjusted at each quarter-end until it is completely settled. The contingent price consideration is valued based on the expected timing of milestones, the expected probability of success for each milestone and discount rates based on a corporate debt interest rate index publicly issued. The following tables present information about our assets and liabilities measured at fair value on a recurring basis in the condensed consolidated balance sheets (in thousands):
Description | December 31, 2013 |  | Quoted Prices In Active Markets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Unobservable Inputs (Level 3)
Assets: |  |  |  |  |  |  |
Cash equivalents | $ | 42,349 |  |  | $ | 42,349 |  |  | $ | — |  |  | $ | — |
Marketable securities | — |  |  | — |  |  | — |  |  | — |
Total assets measured and recorded at fair value | $ | 42,349 |  |  | $ | 42,349 |  |  | $ | — |  |  | $ | — |
Liabilities: |  |  |  |  |  |  |
Warrants potentially settleable in cash | $ | 48,965 |  |  | $ | — |  |  | $ | 48,965 |  |  | $ | — |
Contingent purchase price consideration | 6,821 |  |  | — |  |  | — |  |  | 6,821 |
Total liabilities measured and recorded at fair value | $ | 55,786 |  |  | $ | — |  |  | $ | 48,965 |  |  | $ | 6,821 |
Description | December 31, 2012 |  | Quoted Prices In Active Markets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Unobservable Inputs (Level 3)
Assets: |  |  |  |  |  |  |
Cash equivalents | $ | 32,431 |  |  | $ | 32,431 |  |  | $ | — |  |  | $ | — |
Marketable securities | 2,678 |  |  | 2,678 |  |  | — |  |  | — |
Total assets measured and recorded at fair value | $ | 35,109 |  |  | $ | 35,109 |  |  | $ | — |  |  | $ | — |
Liabilities: |  |  |  |  |  |  |
Warrants potentially settleable in cash | $ | 10,964 |  |  | $ | — |  |  | $ | 10,964 |  |  | $ | — |
Contingent purchase price consideration | 7,142 |  |  | — |  |  | — |  |  | 7,142 |
Total liabilities measured and recorded at fair value | $ | 18,106 |  |  | $ | — |  |  | $ | 10,964 |  |  | $ | 7,142 |
The company has not transferred any financial instruments into or out of Level 3 classification during the years ended December 31, 2013 or 2012. A reconciliation of the beginning and ending Level 3 liabilities for the years ended December 31, 2013 and 2012 is as follows (in thousands):
| Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
Balance, January 1, 2012 | $ | 6,351 |
Milestone payment | (1,579 | )
Change in the estimated fair value of the contingent purchase price consideration | 2,370 |
Balance, December 31, 2012 | 7,142 |
Milestone payment | (1,247 | )
Change in the estimated fair value of the contingent purchase price consideration | 926 |
Balance at December 31, 2013 | $ | 6,821 |
The fair value of the contingent purchase price consideration is measured at the end of each reporting period using Level 3 inputs in a probability-weighted, discounted cash-outflow model. The significant unobservable assumptions include the probability of achieving each milestone, the date we expect to reach the milestone, and a determination of present value factors used to discount future expected cash outflows.

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- Definition The entire disclosure for financial instruments. This disclosure includes, but is not limited to, fair value measurements of short and long term marketable securities, international currencies forward contracts, and auction rate securities. Financial instruments may include hedging and non-hedging currency exchange instruments, derivatives, securitizations and securities available for sale at fair value. Also included are investment results, realized and unrealized gains and losses as well as impairments and risk management disclosures. + References No definition available. + Details
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