These tables present the carrying value and fair value, by fair value hierarchy, of our financial instruments, excluding cash and cash equivalents, accounts receivable and accounts payable at December 31, 2012 and 2013, respectively (in thousands). | | | | | | | | | | | | | | | | | | | | | | | | Fair Value Measurements Using | | | Description | December 31, 2012 | | Quoted Prices for Active Markets for Identical Assets (Level 1) | | Significant Other Observable Inputs (Level 2) | | Significant Unobservable Inputs (Level 3) | | Total (Losses) | Credit facility borrowings | $ | 2,800 |
| | $ | — |
| | $ | 2,800 |
| | $ | — |
| | $ | — |
|
| | | | | | | | | | | | | | | | | | | | | | | | Fair Value Measurements Using | | | Description | December 31, 2013 | | Quoted Prices for Active Markets for Identical Assets (Level 1) | | Significant Other Observable Inputs (Level 2) | | Significant Unobservable Inputs (Level 3) | | Total (Losses) | Credit facility borrowings | $ | 2,000 |
| | $ | — |
| | $ | 2,000 |
| | $ | — |
| | $ | — |
|
Assets Measured at Fair Value on a Recurring Basis | | | | | | | | | | | | | | | | | | | | | | | | Fair Value Measurements Using | | | Description | December 31,
2012 | | Quoted Prices for Active Markets for Identical Assets (Level 1) | | Significant Other Observable Inputs (Level 2) | | Significant Unobservable Inputs (Level 3) | | Total (Losses) | | (in thousands) | Cash and cash equivalents | $ | 40,315 |
| | $ | 40,315 |
| | $ | — |
| | $ | — |
| | $ | — |
|
| | | | | | | | | | | | | | | | | | | | | | | | Fair Value Measurements Using | | | Description | December 31,
2013 | | Quoted Prices for Active Markets for Identical Assets (Level 1) | | Significant Other Observable Inputs (Level 2) | | Significant Unobservable Inputs (Level 3) | | Total (Losses) | | (in thousands) | Cash and cash equivalents | $ | 40,406 |
| | $ | 40,406 |
| | $ | — |
| | $ | — |
| | $ | — |
|
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