Statement of Computation of Ratio of Earnings to Fixed Charges and Ratio of Combined Fixed Charges and Preferred Stock Dividends
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| Year ended December 31, |
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| 2013 |
| 2014 |
| 2015 |
| 2016 |
| 2017 |
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(in thousands) |
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Fixed charges: |
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Interest expense |
| $ | 1,213 |
| $ | 9 |
| $ | 13 |
| $ | 21 |
| $ | 13 |
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Estimated interest within rental expense |
| 164 |
| 179 |
| 167 |
| 191 |
| 498 |
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Total fixed charges |
| $ | 1,378 |
| $ | 188 |
| $ | 180 |
| $ | 212 |
| $ | 511 |
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Earnings available for fixed charges: |
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Pre-tax income (loss) |
| $ | (60,259) |
| $ | (16,422) |
| $ | (17,592) |
| $ | 24,616 |
| $ | (49,388) |
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Add fixed charges |
| 1,378 |
| 188 |
| 180 |
| 212 |
| $ | 511 |
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Total earnings available for fixed charges |
| $ | (58,881) |
| $ | (16,234) |
| $ | (17,412) |
| $ | 24,828 |
| $ | (48,877) |
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Ratio of earnings to fixed charges |
| N/A | (1) | N/A | (1) | N/A | (1) | 117.16 |
| N/A | (1) | |||||
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Fixed charges: |
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Interest expense |
| $ | 1,213 |
| $ | 9 |
| $ | 13 |
| $ | 21 |
| $ | 13 |
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Estimated interest within rental expense |
| 164 |
| 179 |
| 167 |
| 191 |
| 498 |
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Total fixed charges |
| 1,378 |
| 188 |
| 180 |
| 212 |
| 511 |
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Preferred stock dividends pre-tax income requirements |
| - |
| - |
| - |
| - |
| - |
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Total Combined fixed charges and preferred stock dividends |
| $ | 1,378 |
| $ | 188 |
| $ | 180 |
| $ | 212 |
| $ | 511 |
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Earnings available for fixed charges: |
|
|
|
|
|
|
|
|
|
|
| |||||
Pre-tax income (loss) |
| $ | (60,259) |
| $ | (16,422) |
| $ | (17,592) |
| $ | 24,616 |
| $ | (49,388) |
|
Add fixed charges |
| 1,378 |
| 188 |
| 180 |
| 212 |
| $ | 511 |
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Total earnings available for fixed charges |
| $ | (58,881) |
| $ | (16,234) |
| $ | (17,412) |
| $ | 24,828 |
| $ | (48,877) |
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Ratio of earnings to fixed charges and preferred stock dividends |
| N/A | (1) | N/A | (1) | N/A | (1) | 117.16 |
| N/A | (1) |
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(1) We did not record earnings for the periods indicated in the table above. Accordingly, our earnings were insufficent to cover fixed charges for such periods and we are unable to disclose a ratio of earnings to fixed charges or a ratio of earnings to combined fixed charges for such periods.