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

Share-Based Payment (Schedule of Number and Weighted Average Exercise Prices of Share Options) (Details)

v3.19.1
Share-Based Payment (Schedule of Number and Weighted Average Exercise Prices of Share Options) (Details)
12 Months Ended
Dec. 31, 2018
USD ($)
shares
Dec. 31, 2017
USD ($)
shares
Dec. 31, 2016
USD ($)
shares
Number of Options      
Outstanding at beginning of year | shares 25,502 22,502 19,502
Granted | shares 3,000 3,000 3,000
Exercised | shares
Expired | shares 1,333
Outstanding at end of year | shares 27,169 25,502 22,502
Exercisable at end of year | shares 24,169 22,502 18,502
Weighted Average Exercise Price      
Outstanding at beginning of year | $ $ 7.54 $ 7.34 $ 7.19
Granted | $ 8.95 9.02 8.3
Exercised | $
Expired | $ 5
Outstanding at end of year | $ 7.82 7.54 7.34
Exercisable at end of year | $ $ 7.68 $ 7.34 $ 7.19