Net Loss Per Share Net Loss Per Share of Common Stock (Tables)
|3 Months Ended|
Mar. 31, 2019
|Earnings Per Share [Abstract]|
|Schedule of Net Loss Per Share Basic and Diluted||
Net loss per share for the three-month periods ended March 31, 2018 and 2019 are as follows:
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.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef