Preferred Stock |
12 Months Ended |
|---|---|
Dec. 31, 2017 | |
| Class of Stock Disclosures [Abstract] | |
| Preferred Stock | 8. Preferred Stock
The Company is authorized to issue 1,000,000 shares of preferred stock with such designations, voting and other rights and preferences as may be determined from time to time by the Board of Directors with no outstanding preferred stock at December 31, 2017 and 2016. |