Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity and Capital Stock (Details Textual)

v2.4.0.8
Shareholders' Equity and Capital Stock (Details Textual)
9 Months Ended 9 Months Ended 9 Months Ended
Sep. 30, 2014
USD ($)
Sep. 30, 2013
USD ($)
Sep. 30, 2014
CAD
Dec. 31, 2013
Dec. 31, 2013
Capital Stock
Sep. 30, 2014
In Money Stock Option [Member]
USD ($)
Sep. 30, 2014
Restricted Stock Units (Rsus) [Member]
USD ($)
Sep. 30, 2013
Restricted Stock Units (Rsus) [Member]
Sep. 30, 2014
Restricted Stock Units (Rsus) [Member]
Capital Stock
Sep. 30, 2014
Grant Date [Member]
Employee Stock Option [Member]
Sep. 30, 2014
Four and One Half Months After Grant [Member]
Employee Stock Option [Member]
Sep. 30, 2014
Nine Months After Grant [Member]
Employee Stock Option [Member]
Sep. 30, 2014
Thirteen and One Half Months After Grant [Member]
Employee Stock Option [Member]
Sep. 30, 2014
Eighteen Months After Date Of Grant [Member]
Employee Stock Option [Member]
Sep. 30, 2014
First Anniversary [Member]
Restricted Stock Units (Rsus) [Member]
Sep. 30, 2014
Second Anniversary [Member]
Restricted Stock Units (Rsus) [Member]
Stockholder's Equity Note [Line Items]                                
Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Percentage                   10.00% 22.00% 22.00% 22.00% 24.00% 50.00% 50.00%
Share Price     1.13                          
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Number     7,554,788 9,273,659   3,404,519                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number     6,869,738     3,259,146                    
Stock based compensation $ 720,000 $ 914,000                            
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Stock Options           300,000                    
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options             200,000                  
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition           8 months 12 days 1 year 1 month 6 days                  
Proceeds from Stock Options Exercised 1,298,000 83,000                            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value $ 0                              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value $ 600,000                              
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period             0 0                
Number of securities called by each unit         1       1