XML 71 R61.htm IDEA: XBRL DOCUMENT v3.19.1
Shareholders' Equity (Intrinsic Value of Restricted Share Units) (Narrative) (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Restricted Share Units [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Aggregate intrinsic value of RSUs outstanding $ 2,725 $ 5,469