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Common Shares (Summary Of the Fair Value Of All Awards issued Under Stock Compensation Plans) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Percentage of issued and outstanding Common Shares     10.00%  
Stock-based expense $ 168 $ 220 $ 476 $ 687
Employee, Directors and Consultants Stock Options [Member]        
Stock-based expense 7 2 12 6
Restricted Stock Units (RSUs) [Member]        
Stock-based expense $ 161 $ 218 $ 464 $ 681