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Common Shares (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Employee, Directors and Consultants Stock Options [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized compensation expense related to unvested options $ 23  
Weighted average compensation recognition period 3 years  
Restricted Stock [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized compensation expense related to unvested options   $ 440
Weighted average compensation recognition period 1 year 1 month 17 days