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Net Loss Per Share | 12 Months Ended
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Dec. 31, 2016
Earnings Per Share [Abstract] |
Net Loss Per Share | 8. Net Loss Per Share The following table sets for the computations of loss per share (in thousands, except share and per share amounts):
| December 31,
| 2016 |  | 2015 |  | 2014
Numerators: |  |  |  |  |
Loss from continuing operations attributable to common stockholders | $ | (13,513 | ) |  | $ | (13,664 | ) |  | $ | (20,117 | )
Preferred stock dividends and accretion | — |  |  | — |  |  | (1,524 | )
Net loss attributable to common stockholders | $ | (13,513 | ) |  | $ | (13,664 | ) |  | $ | (21,641 | )
Denominator: |  |  |  |  |
Weighted–average common shares outstanding, basic and diluted | 16,472,799 |  |  | 14,939,601 |  |  | 4,889,901 |
Loss from continuing operations per share, basic and diluted | $ | (0.82 | ) |  | $ | (0.91 | ) |  | $ | (4.43 | )
Loss from discontinued operations per share, basic and diluted | — |  |  | — |  |  | — |
Net loss per common share, basic and diluted | $ | (0.82 | ) |  | $ | (0.91 | ) |  | $ | (4.43 | )
Due to the net losses for the years ended December 31, 2016, 2015, and 2014, basic and diluted loss per share were the same, as the effect of all potentially dilutive securities would have been anti-dilutive. The following table sets forth the anti-dilutive common share equivalents:
| December 31,
| 2016 |  | 2015 |  | 2014
Stock options | 759,719 |  |  | 778,385 |  |  | 665,216 |
Restricted stock | 839,477 |  |  | 513,943 |  |  | 438,939 |
Total anti–dilutive common share equivalents | 1,599,196 |  |  | 1,292,328 |  |  | 1,104,155 |

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