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
3 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Exercise price $ 1.19 $ 1.15
Number of options, Outstanding 8,315,737 9,273,659
Weighted- average remaining contractual life (years), Outstanding 2 years 10 months 24 days  
Aggregate Intrinsic Value, Outstanding $ 4,395  
Number of options, Exercisable 6,548,801  
Weighted- average remaining contractual life (years), Exercisable 2 years 4 months 24 days  
Aggregate Intrinsic Value, Exercisable 3,349  
Stock Option Exercise Price Range One [Member]
   
Exercise price $ 0.81  
Number of options, Outstanding 512,662  
Weighted- average remaining contractual life (years), Outstanding 4 months 24 days  
Aggregate Intrinsic Value, Outstanding 379  
Number of options, Exercisable 512,662  
Weighted- average remaining contractual life (years), Exercisable 4 months 24 days  
Aggregate Intrinsic Value, Exercisable 379  
Expiry Sep. 02, 2014  
Stock Option Exercise Price Range Two [Member]
   
Exercise price $ 0.73  
Number of options, Outstanding 468,389  
Weighted- average remaining contractual life (years), Outstanding 10 months 24 days  
Aggregate Intrinsic Value, Outstanding 384  
Number of options, Exercisable 468,389  
Weighted- average remaining contractual life (years), Exercisable 10 months 24 days  
Aggregate Intrinsic Value, Exercisable 384  
Expiry Mar. 05, 2015  
Stock Option Exercise Price Range Three [Member]
   
Exercise price $ 2.59  
Number of options, Outstanding 1,318,293  
Weighted- average remaining contractual life (years), Outstanding 1 year 9 months 18 days  
Aggregate Intrinsic Value, Outstanding 0  
Number of options, Exercisable 1,318,293  
Weighted- average remaining contractual life (years), Exercisable 1 year 9 months 18 days  
Aggregate Intrinsic Value, Exercisable 0  
Expiry Jan. 28, 2016  
Stock Option Exercise Price Range Four [Member]
   
Exercise price $ 1.42  
Number of options, Outstanding 545,000  
Weighted- average remaining contractual life (years), Outstanding 2 years 3 months 18 days  
Aggregate Intrinsic Value, Outstanding 71  
Number of options, Exercisable 545,000  
Weighted- average remaining contractual life (years), Exercisable 2 years 3 months 18 days  
Aggregate Intrinsic Value, Exercisable 71  
Expiry Jul. 07, 2016  
Stock Option Exercise Price Range Five [Member]
   
Exercise price $ 1.06  
Number of options, Outstanding 677,223  
Weighted- average remaining contractual life (years), Outstanding 2 years 4 months 24 days  
Aggregate Intrinsic Value, Outstanding 332  
Number of options, Exercisable 677,223  
Weighted- average remaining contractual life (years), Exercisable 2 years 4 months 24 days  
Aggregate Intrinsic Value, Exercisable 332  
Expiry Sep. 09, 2016  
Stock Option Exercise Price Range Six [Member]
   
Exercise price $ 1.05  
Number of options, Outstanding 200,000  
Weighted- average remaining contractual life (years), Outstanding 2 years 7 months 6 days  
Aggregate Intrinsic Value, Outstanding 100  
Number of options, Exercisable 200,000  
Weighted- average remaining contractual life (years), Exercisable 2 years 7 months 6 days  
Aggregate Intrinsic Value, Exercisable 100  
Expiry Oct. 24, 2016  
Stock Option Exercise Price Range Seven [Member]
   
Exercise price $ 0.82  
Number of options, Outstanding 1,002,482  
Weighted- average remaining contractual life (years), Outstanding 2 years 9 months 18 days  
Aggregate Intrinsic Value, Outstanding 732  
Number of options, Exercisable 1,002,482  
Weighted- average remaining contractual life (years), Exercisable 2 years 9 months 18 days  
Aggregate Intrinsic Value, Exercisable 732  
Expiry Jan. 12, 2017  
Stock Option Exercise Price Range Eight [Member]
   
Exercise price $ 1.26  
Number of options, Outstanding 200,000  
Weighted- average remaining contractual life (years), Outstanding 2 years 9 months 18 days  
Aggregate Intrinsic Value, Outstanding 58  
Number of options, Exercisable 200,000  
Weighted- average remaining contractual life (years), Exercisable 2 years 9 months 18 days  
Aggregate Intrinsic Value, Exercisable 58  
Expiry Feb. 01, 2017  
Stock Option Exercise Price Range Nine [Member]
   
Exercise price $ 1.07  
Number of options, Outstanding 100,000  
Weighted- average remaining contractual life (years), Outstanding 2 years 10 months 24 days  
Aggregate Intrinsic Value, Outstanding 48  
Number of options, Exercisable 100,000  
Weighted- average remaining contractual life (years), Exercisable 2 years 10 months 24 days  
Aggregate Intrinsic Value, Exercisable 48  
Expiry Mar. 01, 2017  
Stock Option Exercise Price Range Ten [Member]
   
Exercise price $ 0.69  
Number of options, Outstanding 1,408,150  
Weighted- average remaining contractual life (years), Outstanding 3 years 8 months 12 days  
Aggregate Intrinsic Value, Outstanding 1,211  
Number of options, Exercisable 1,041,080  
Weighted- average remaining contractual life (years), Exercisable 3 years 8 months 12 days  
Aggregate Intrinsic Value, Exercisable 895  
Expiry Dec. 07, 2017  
Stock Option Exercise Price Range Eleven [Member]
   
Exercise price $ 0.70  
Number of options, Outstanding 637,382  
Weighted- average remaining contractual life (years), Outstanding 4 years 1 month 6 days  
Aggregate Intrinsic Value, Outstanding 542  
Number of options, Exercisable 338,866  
Weighted- average remaining contractual life (years), Exercisable 4 years 1 month 6 days  
Aggregate Intrinsic Value, Exercisable 288  
Expiry Apr. 25, 2018  
Stock Option Exercise Price Range Twelve [Member]
   
Exercise price $ 1.12  
Number of options, Outstanding 100,000  
Weighted- average remaining contractual life (years), Outstanding 4 years 3 months 18 days  
Aggregate Intrinsic Value, Outstanding 43  
Number of options, Exercisable 32,000  
Weighted- average remaining contractual life (years), Exercisable 4 years 3 months 18 days  
Aggregate Intrinsic Value, Exercisable 14  
Expiry Aug. 01, 2018  
Stock Option Exercise Price Range Thirteen [Member]
   
Exercise price $ 1.08  
Number of options, Outstanding 1,046,156  
Weighted- average remaining contractual life (years), Outstanding 4 years 8 months 12 days  
Aggregate Intrinsic Value, Outstanding 492  
Number of options, Exercisable 102,806  
Weighted- average remaining contractual life (years), Exercisable 4 years 8 months 12 days  
Aggregate Intrinsic Value, Exercisable 48  
Expiry Dec. 27, 2018  
Stock Option Exercise Price Range Fourteen Member [Member]
   
Exercise price $ 1.52  
Number of options, Outstanding 100,000  
Weighted- average remaining contractual life (years), Outstanding 5 years  
Aggregate Intrinsic Value, Outstanding 3  
Number of options, Exercisable 10,000  
Weighted- average remaining contractual life (years), Exercisable 5 years  
Aggregate Intrinsic Value, Exercisable $ 0  
Expiry Mar. 31, 2019