XML 65 R54.htm IDEA: XBRL DOCUMENT v3.19.1
Loss Per Share (Details Textual) - shares
shares in Millions
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Employee Stock Option [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive Securities Excluded From Computation Of Earnings Per Share, Amount 5.0 4.2