Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Share-Based Payment (Narrative) (Details)

v3.19.1
Share-Based Payment (Narrative) (Details)
1 Months Ended 12 Months Ended
Aug. 31, 2000
shares
Dec. 31, 1998
shares
Dec. 31, 2018
USD ($)
shares
yr
Dec. 31, 2017
USD ($)
shares
yr
Dec. 31, 2016
USD ($)
shares
yr
Dec. 31, 2015
USD ($)
shares
Disclosure of terms and conditions of share-based payment arrangement [line items]            
Stock option reserve for grant     3,000 3,000 3,000  
Options outstanding     27,169 25,502 22,502 19,502
Exericse prices for share options outstanding | $     $ 7.82 $ 7.54 $ 7.34 $ 7.19
Bottom of range [Member]            
Disclosure of terms and conditions of share-based payment arrangement [line items]            
Weighted average remaining contractual life outstanding | yr         0.41  
Exericse prices for share options outstanding | $     $ 4.7 $ 4.7 $ 4.7  
Top of range [member]            
Disclosure of terms and conditions of share-based payment arrangement [line items]            
Weighted average remaining contractual life outstanding | yr     5.51 5.72 0.81  
Exericse prices for share options outstanding | $     $ 9.37 $ 9.37 $ 9.37  
1998 Plan [Member]            
Disclosure of terms and conditions of share-based payment arrangement [line items]            
Stock option expiration term   10 Years        
Stock option reserve for grant   75,000        
Stock option expiration date   December 8, 2008        
Stock option extended expiration date   December 8, 2028        
Options outstanding     27,169      
Ordinary shares available for future grants     30,416      
1998 Plan [Member] | Director [Member]            
Disclosure of terms and conditions of share-based payment arrangement [line items]            
Stock option reserve for grant     3,000 3,000 3,000  
2000 Plan [Member]            
Disclosure of terms and conditions of share-based payment arrangement [line items]            
Stock option expiration term 10 years          
Stock option reserve for grant 200,000          
Stock option expiration date August 31, 2028          
Stock option vesting term over a three year period          
Percentage of exercise price 80.00%          
Ordinary shares available for future grants     595,009