The components of our cash equivalents and short-term investments, including unrealized gains and losses associated with each are as follows (in thousands): | | | | | | | | | | | | | | | | | | December 31, 2016 | | Amortized cost | | Gross unrealized gains | | Gross unrealized losses | | Fair Value | Cash equivalents: | | | | | | | | Money market funds | $ | 11,126 |
| | $ | — |
| | $ | — |
| | $ | 11,126 |
| Total cash equivalents | $ | 11,126 |
| | $ | — |
| | $ | — |
| | $ | 11,126 |
| Short term investments: | | | | | | | | Certificates of deposit, 90 days or greater | 23,808 |
| | — |
| | — |
| | 23,808 |
| Total cash equivalents and short term investments | $ | 34,934 |
| | $ | — |
| | $ | — |
| | $ | 34,934 |
|
| | | | | | | | | | | | | | | | | | December 31, 2015 | | Amortized cost | | Gross unrealized gains | | Gross unrealized losses | | Fair Value | Cash equivalents: | | | | | | | | Money market funds | $ | 24,116 |
| | $ | — |
| | $ | — |
| | $ | 24,116 |
| Total cash equivalents | $ | 24,116 |
| | $ | — |
| | $ | — |
| | $ | 24,116 |
| Short term investments: | | | | | | | | Certificates of deposit, 90 days or greater | 17,610 |
| | — |
| | — |
| | 17,610 |
| Total cash equivalents and short term investments | $ | 41,726 |
| | $ | — |
| | $ | — |
| | $ | 41,726 |
|
|