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Common Shares (Narrative) (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2016
USD ($)
Employee, Directors and Consultants Stock Options [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized compensation expense related to stock options $ 21
Weighted average compensation recognition period 2 years 9 months
Restricted Stock Units (RSUs) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized compensation expense related to unvested awards $ 438
Weighted average compensation recognition period 11 months 23 days