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Stockholders' Equity | 3 Months Ended
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Mar. 31, 2019
Equity [Abstract] |
Stockholders' Equity | 9. Stockholders’ Equity Common stock The Company’s amended and restated certificate of incorporation dated October 25, 2016, authorizes the Company to issue 100,000,000 shares of common stock with a par value of $0.001 per share and 5,000,000 shares of preferred stock with a par value of $0.001 per share. The holders of common stock are entitled to receive dividends whenever funds and assets are legally available and when declared by the board of directors, subject to the prior rights of holders of all series of convertible preferred stock outstanding. No dividends were declared through March 31, 2019. The Company had reserved shares of common stock for issuance as follows:
|  | March 31, |  |  | December 31, |
|  | 2019 |  |  | 2018 |
Options issued and outstanding |  |  | 1,885,914 |  |  |  | 2,094,137 |
Unvested restricted stock units |  |  | 896,759 |  |  |  | 547,891 |
Common stock warrants issued and outstanding |  |  | 4,857 |  |  |  | 4,857 |
Shares available for grant under future stock plans |  |  | 6,789,722 |  |  |  | 5,607,014 |
Total |  |  | 9,577,252 |  |  |  | 8,253,899 |

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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