Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity and Capital Stock (Details 1)

v2.4.0.8
Shareholders' Equity and Capital Stock (Details 1) (USD $)
In Thousands, except Share data, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Exercise price $ 1.23 $ 1.19
Number of options, Outstanding 8,153,094 9,273,659
Weighted- average remaining contractual life (years), Outstanding 2 years 7 months 6 days  
Aggregate Intrinsic Value, Outstanding $ 1,372  
Number of options, Exercisable 7,187,700  
Weighted- average remaining contractual life (years), Exercisable 2 years 4 months 24 days  
Aggregate Intrinsic Value, Exercisable 1,308  
Stock Option Exercise Price Range One [Member]
   
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Exercise price $ 0.84  
Number of options, Outstanding 508,376  
Weighted- average remaining contractual life (years), Outstanding 2 months 12 days  
Aggregate Intrinsic Value, Outstanding 138  
Number of options, Exercisable 508,376  
Weighted- average remaining contractual life (years), Exercisable 2 months 12 days  
Aggregate Intrinsic Value, Exercisable 138  
Expiry Sep. 02, 2014  
Stock Option Exercise Price Range Two [Member]
   
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Exercise price $ 0.76  
Number of options, Outstanding 462,064  
Weighted- average remaining contractual life (years), Outstanding 8 months 12 days  
Aggregate Intrinsic Value, Outstanding 160  
Number of options, Exercisable 462,064  
Weighted- average remaining contractual life (years), Exercisable 8 months 12 days  
Aggregate Intrinsic Value, Exercisable 160  
Expiry Mar. 05, 2015  
Stock Option Exercise Price Range Three [Member]
   
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Exercise price $ 2.69  
Number of options, Outstanding 1,277,741  
Weighted- average remaining contractual life (years), Outstanding 1 year 7 months 6 days  
Aggregate Intrinsic Value, Outstanding 0  
Number of options, Exercisable 1,277,741  
Weighted- average remaining contractual life (years), Exercisable 1 year 7 months 6 days  
Aggregate Intrinsic Value, Exercisable 0  
Expiry Jan. 28, 2016  
Stock Option Exercise Price Range Four [Member]
   
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Exercise price $ 1.47  
Number of options, Outstanding 545,000  
Weighted- average remaining contractual life (years), Outstanding 2 years  
Aggregate Intrinsic Value, Outstanding 0  
Number of options, Exercisable 545,000  
Weighted- average remaining contractual life (years), Exercisable 2 years  
Aggregate Intrinsic Value, Exercisable 0  
Expiry Jul. 07, 2016  
Stock Option Exercise Price Range Five [Member]
   
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Exercise price $ 1.10  
Number of options, Outstanding 677,223  
Weighted- average remaining contractual life (years), Outstanding 2 years 2 months 12 days  
Aggregate Intrinsic Value, Outstanding 19  
Number of options, Exercisable 677,223  
Weighted- average remaining contractual life (years), Exercisable 2 years 2 months 12 days  
Aggregate Intrinsic Value, Exercisable 19  
Expiry Sep. 09, 2016  
Stock Option Exercise Price Range Six [Member]
   
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Exercise price $ 1.09  
Number of options, Outstanding 200,000  
Weighted- average remaining contractual life (years), Outstanding 2 years 3 months 18 days  
Aggregate Intrinsic Value, Outstanding 7  
Number of options, Exercisable 200,000  
Weighted- average remaining contractual life (years), Exercisable 2 years 3 months 18 days  
Aggregate Intrinsic Value, Exercisable 7  
Expiry Oct. 24, 2016  
Stock Option Exercise Price Range Seven [Member]
   
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Exercise price $ 0.85  
Number of options, Outstanding 983,167  
Weighted- average remaining contractual life (years), Outstanding 2 years 6 months  
Aggregate Intrinsic Value, Outstanding 258  
Number of options, Exercisable 983,167  
Weighted- average remaining contractual life (years), Exercisable 2 years 6 months  
Aggregate Intrinsic Value, Exercisable 258  
Expiry Jan. 12, 2017  
Stock Option Exercise Price Range Eight [Member]
   
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Exercise price $ 1.30  
Number of options, Outstanding 200,000  
Weighted- average remaining contractual life (years), Outstanding 2 years 7 months 6 days  
Aggregate Intrinsic Value, Outstanding 0  
Number of options, Exercisable 200,000  
Weighted- average remaining contractual life (years), Exercisable 2 years 7 months 6 days  
Aggregate Intrinsic Value, Exercisable 0  
Expiry Feb. 01, 2017  
Stock Option Exercise Price Range Nine [Member]
   
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Exercise price $ 1.11  
Number of options, Outstanding 100,000  
Weighted- average remaining contractual life (years), Outstanding 2 years 8 months 12 days  
Aggregate Intrinsic Value, Outstanding 2  
Number of options, Exercisable 100,000  
Weighted- average remaining contractual life (years), Exercisable 2 years 8 months 12 days  
Aggregate Intrinsic Value, Exercisable 2  
Expiry Mar. 01, 2017  
Stock Option Exercise Price Range Ten [Member]
   
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Exercise price $ 0.71  
Number of options, Outstanding 1,371,994  
Weighted- average remaining contractual life (years), Outstanding 3 years 4 months 24 days  
Aggregate Intrinsic Value, Outstanding 540  
Number of options, Exercisable 1,371,994  
Weighted- average remaining contractual life (years), Exercisable 3 years 4 months 24 days  
Aggregate Intrinsic Value, Exercisable 540  
Expiry Dec. 07, 2017  
Stock Option Exercise Price Range Eleven [Member]
   
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Exercise price $ 0.72  
Number of options, Outstanding 620,971  
Weighted- average remaining contractual life (years), Outstanding 3 years 9 months 18 days  
Aggregate Intrinsic Value, Outstanding 239  
Number of options, Exercisable 471,527  
Weighted- average remaining contractual life (years), Exercisable 3 years 9 months 18 days  
Aggregate Intrinsic Value, Exercisable 181  
Expiry Apr. 25, 2018  
Stock Option Exercise Price Range Twelve [Member]
   
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Exercise price $ 1.16  
Number of options, Outstanding 100,000  
Weighted- average remaining contractual life (years), Outstanding 4 years 1 month 6 days  
Aggregate Intrinsic Value, Outstanding 0  
Number of options, Exercisable 54,000  
Weighted- average remaining contractual life (years), Exercisable 4 years 1 month 6 days  
Aggregate Intrinsic Value, Exercisable 0  
Expiry Aug. 01, 2018  
Stock Option Exercise Price Range Thirteen [Member]
   
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Exercise price $ 1.12  
Number of options, Outstanding 1,006,558  
Weighted- average remaining contractual life (years), Outstanding 4 years 6 months  
Aggregate Intrinsic Value, Outstanding 9  
Number of options, Exercisable 326,608  
Weighted- average remaining contractual life (years), Exercisable 4 years 6 months  
Aggregate Intrinsic Value, Exercisable 3  
Expiry Dec. 27, 2018  
Stock Option Exercise Price Range Fourteen Member [Member]
   
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]    
Exercise price $ 1.57  
Number of options, Outstanding 100,000  
Weighted- average remaining contractual life (years), Outstanding 4 years 9 months 18 days  
Aggregate Intrinsic Value, Outstanding 0  
Number of options, Exercisable 10,000  
Weighted- average remaining contractual life (years), Exercisable 4 years 9 months 18 days  
Aggregate Intrinsic Value, Exercisable $ 0  
Expiry Mar. 31, 2019