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Net Loss Per Share | 6 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Net Loss Per Share | Net Loss Per Share Basic net loss per share is computed by dividing net loss attributable to common stockholders by the weighted-average number of shares of common stock outstanding during the period. The weighted-average number of shares of common stock outstanding does no t include any potentially dilutive securities or unvested restricted stock. Unvested restricted stock, although classified as issued and outstanding at June 30, 2018 and 2017, is considered contingently returnable until the restrictions lapse and will not be included in the basic net loss per share calculation until the shares are vested. Unvested restricted stock does not contain non-forfeitable rights to dividends and dividend equivalents. Unvested RSUs are not included in calculations of basic net loss per share, as they are not considered issued and outstanding at time of grant. Diluted net loss per share is computed by giving effect to all potential shares of common stock, including stock options, preferred stock, RSUs, and unvested restricted stock, to the extent they are dilutive. For the three and six months ended June 30, 2018 and 2017, all such common stock equivalents have been excluded from diluted net loss per share as the effect to net loss per share would be anti-dilutive (decrease our net loss per share). The following table sets forth the computation of the Company’s basic and diluted net loss per share (in thousands, except per share data):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
Numerator: |  |  |  |  |  |  |
Net loss | $ | (1,689 | ) |  | $ | (590 | ) |  | $ | (2,974 | ) |  | $ | (1,258 | )
Less: preferred stock dividends | 3 |  |  | 3 |  |  | 6 |  |  | 6 |
Net loss attributable to common stockholders | $ | (1,692 | ) |  | $ | (593 | ) |  | $ | (2,980 | ) |  | $ | (1,264 | )
Denominator: |  |  |  |  |  |  |
Weighted-average number of shares of common stock for basic and diluted net loss per share | 47,359 |  |  | 37,168 |  |  | 46,802 |  |  | 37,168 |
Basic and diluted net loss per share | $ | (0.04 | ) |  | $ | (0.02 | ) |  | $ | (0.06 | ) |  | $ | (0.03 | )
The weighted-average number of shares includes 988,000 shares of vested RSUs, respectively, as discussed in Note 8. The following table represents the potential shares that were excluded from the computation of weighted-average number of shares of common stock in computing the diluted net loss per share for the periods presented because including them would have had an anti-dilutive effect (in thousands):
| Six Months Ended June 30,
| 2018 |  | 2017
Unvested restricted stock units | 2,393 |  |  | 2,387 |
Unvested restricted stock awards | 113 |  |  | 354 |
Outstanding stock options | 1,189 |  |  | 1,208 |
Shares of common stock issuable upon conversion of Series A-2 Preferred | 79 |  |  | 79 |
Shares of common stock issuable upon conversion of Series B Preferred | 1,339 |  |  | — |
Shares of common stock issuable upon conversion of Series C Preferred | 4,250 |  |  | — |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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