Quarterly report pursuant to Section 13 or 15(d)

Net Income (Loss) Per Share (Details Textuals)

v3.19.1
Net Income (Loss) Per Share (Details Textuals) - shares
shares in Millions
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Earnings Per Share [Abstract]    
Common stock equivalents excluded from the calculation of diluted net income (loss) (shares) 2.9 1.0