Loss Per Share	6 Months Ended
Jun. 30, 2018
Loss Per Share [Abstract]
Loss Per Share	5. LOSS PER SHARE The Company calculates basic loss per share using the weighted average number of shares of Vermillion common stock outstanding during the period. Because the Company is in a net loss position, diluted loss per share is calculated using the weighted average number of shares of Vermillion common stock outstanding and excludes the effects of 7,572,134 and 11,662,820 potential shares of Vermillion common stock as of June 30, 2018 and 2017, respectively, that are anti-dilutive. Potential shares of Vermillion common stock include incremental shares of Vermillion common stock issuable upon the exercise of outstanding warrants, stock options and unvested restricted stock units.

Loss Per Share

6 Months Ended

Jun. 30, 2018

5. LOSS PER SHARE

The Company calculates basic loss per share using the weighted average number of shares of Vermillion common stock outstanding during the period. Because the Company is in a net loss position, diluted loss per share is calculated using the weighted average number of shares of Vermillion common stock outstanding and excludes the effects of 7,572,134 and 11,662,820 potential shares of Vermillion common stock as of June 30, 2018 and 2017, respectively, that are anti-dilutive. Potential shares of Vermillion common stock include incremental shares of Vermillion common stock issuable upon the exercise of outstanding warrants, stock options and unvested restricted stock units.