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Net Income (Loss) per Share (Tables) | 3 Months Ended
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Mar. 31, 2018
Earnings Per Share [Abstract] |
Schedule of Basic and Diluted Net Income (Loss) per Share | The following table sets forth the calculation of basic and diluted net income (loss) per share attributable to common stockholders during the periods presented:
| Three Months Ended March 31,
(in thousands, except per share data) | 2018 |  | 2017
Numerator: |  |  |
Net income (loss) | $ | 2,916 |  |  | $ | (1,213 | )
Participating securities: |  |  |
Income allocated to participating securities | (2,916 | ) |  | — |
Net income (loss) attributable to common stockholders | — |  |  | (1,213 | )
Denominator: |  |  |
Weighted-average common shares outstanding, basic and diluted | 3,031 |  |  | 2,600 |
Net income (loss) per share: |  |  |
Net income (loss) per share attributable to common stockholders, basic and diluted | $ | 0.00 |  |  | $ | (0.47 | )
Schedule of Potentially Dilutive Shares Not Included in Calculation of Diluted Shares | The following potentially dilutive shares of convertible preferred stock, preferred stock warrants, and stock options were not included in the calculation of diluted shares above as the effect would have been anti‑dilutive:
| Three Months Ended March 31,
(in thousands) | 2018 |  | 2017
Convertible preferred stock | 24,642 |  |  | 19,837 |
Preferred stock warrants | 214 |  |  | 214 |
Stock options to purchase common stock | 5,630 |  |  | 4,382 |
Total | 30,486 |  |  | 24,433 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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