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
|
|