|
Shareholders' Equity and Capital Stock (Tables)
|
12 Months Ended |
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Dec. 31, 2014
|
| Stockholders' Equity Note [Abstract] |
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| Schedule of Share-based Compensation, Stock Options, Activity |
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Weighted-
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Options
|
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average
|
|
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#
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|
exercise price
|
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$
|
|
|
|
|
|
|
|
|
Outstanding, December 31, 2011
|
|
|
6,413,902
|
|
1.75
|
|
Granted
|
|
|
3,114,207
|
|
0.87
|
|
Exercised
|
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(88,473)
|
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0.85
|
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Forfeited
|
|
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(145,414)
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1.99
|
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Expired
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(782,500)
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3.25
|
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Outstanding, December 31, 2012
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|
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8,511,722
|
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1.32
|
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Granted
|
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1,876,670
|
|
1.07
|
|
Exercised
|
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(377,927)
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0.79
|
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Forfeited
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(31,806)
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0.78
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Expired
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(705,000)
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1.69
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Outstanding, December 31, 2013
|
|
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9,273,659
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1.19
|
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Granted
|
|
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1,136,776
|
|
0.93
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Exercised
|
|
|
(1,623,139)
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|
0.83
|
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Forfeited
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|
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(303,612)
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1.45
|
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Expired
|
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(15,070)
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|
0.82
|
|
|
|
|
|
|
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Outstanding, December 31, 2014
|
|
|
8,468,614
|
|
1.21
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|
| Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range |
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Options outstanding
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Options exercisable
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Weighted-
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Weighted-
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average
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Aggregate
|
|
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|
average
|
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Aggregate
|
|
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Exercise
|
|
|
|
remaining
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Intrinsic
|
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|
remaining
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Intrinsic
|
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|
price
|
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Number
|
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contractual
|
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Value
|
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Number
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|
contractual
|
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Value
|
|
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$
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|
of options
|
|
life (years)
|
|
$
|
|
of options
|
|
life (years)
|
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$
|
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Expiry
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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0.70
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455,595
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0.2
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59
|
|
455,595
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|
0.2
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|
59
|
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March 5, 2015
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|
2.47
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1,227,034
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|
1.1
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|
-
|
|
1,227,034
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1.1
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|
-
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January 28, 2016
|
|
1.35
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|
545,000
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|
1.5
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|
-
|
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545,000
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|
1.5
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|
-
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July 7, 2016
|
|
1.01
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|
657,782
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1.7
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|
-
|
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657,782
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1.7
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|
-
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September 9, 2016
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1.00
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200,000
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1.8
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|
-
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200,000
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1.8
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|
-
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October 24, 2016
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|
0.78
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|
956,382
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2.0
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|
58
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956,382
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|
2.0
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|
58
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January 12, 2017
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1.20
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200,000
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2.1
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|
-
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200,000
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2.1
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|
-
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February 1, 2017
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1.01
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100,000
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2.2
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|
-
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100,000
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2.2
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-
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March 1, 2017
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0.65
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1,330,542
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2.9
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|
229
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1,330,542
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|
2.9
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|
229
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December 7, 2017
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0.66
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594,152
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3.3
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|
97
|
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594,152
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3.3
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|
97
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April 25, 2018
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1.07
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100,000
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3.6
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|
-
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76,000
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3.6
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|
-
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August 1, 2018
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1.03
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965,351
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4.0
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|
-
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522,857
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4.0
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|
-
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December 27, 2018
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|
1.44
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|
100,000
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|
4.2
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|
-
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54,000
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4.2
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|
-
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March 31, 2019
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|
0.88
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|
1,036,776
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|
4.9
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|
-
|
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103,678
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4.9
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|
-
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December 12, 2019
|
|
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1.21
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8,468,614
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|
2.6
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|
443
|
|
7,023,022
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|
2.2
|
|
443
|
|
|
|
| Schedule of Share-based Compensation, Restricted Stock Units Award Activity |
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Number
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Weighted
|
|
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of
|
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average grant
|
|
|
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RSUs
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|
date fair value
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$
|
|
Unvested, December 31, 2011
|
|
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276,365
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|
2.90
|
|
Granted
|
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703,572
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|
0.92
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Vested
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(136,789)
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2.90
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Forfeited
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(16,723)
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1.68
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Unvested, December 31, 2012
|
|
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826,425
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1.15
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Granted
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273,834
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|
1.23
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Vested
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(402,581)
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|
1.89
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Forfeited
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|
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(6,068)
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|
0.78
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|
|
|
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|
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Unvested, December 31, 2013
|
|
|
691,610
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|
0.90
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Granted
|
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|
259,192
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|
1.20
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Vested
|
|
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(527,407)
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|
0.74
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Forfeited
|
|
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(43,960)
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|
0.92
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|
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Unvested, December 31, 2014
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|
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379,435
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0.89
|
|
| Schedule Of Share-Based Compensation, Shares Authorized Under Restricted Stock Units, By Grant Date |
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|
|
|
|
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|
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Aggregate
|
|
|
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Number of
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Remaining
|
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Intrinsic
|
|
|
|
unvested
|
|
life
|
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Value
|
|
Grant date
|
|
options
|
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(years)
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|
$
|
|
December 27, 2013
|
|
120,243
|
|
0.98
|
|
102
|
|
December 12, 2014
|
|
259,192
|
|
1.94
|
|
220
|
|
|
|
|
|
|
|
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379,435
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1.48
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|
322
|
|
| Schedule Of Share-Based Compensation, Warrants, Activity |
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|
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|
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Number
|
|
Weighted-
|
|
|
|
|
of
|
|
average
|
|
|
|
|
Warrants
|
|
exercise price
|
|
|
|
|
|
|
$
|
|
Outstanding, December 31, 2011
|
|
|
100,000
|
|
1.12
|
|
|
|
|
|
|
|
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Granted
|
|
|
50,000
|
|
0.93
|
|
|
|
|
|
|
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Outstanding, December 31, 2012
|
|
|
150,000
|
|
1.06
|
|
|
|
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|
|
|
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Granted
|
|
|
9,774,512
|
|
1.19
|
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Cancelled
|
|
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(1,550,400)
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|
1.17
|
|
|
|
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|
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Outstanding, December 31, 2013
|
|
|
8,374,112
|
|
1.19
|
|
|
|
|
|
|
|
|
Outstanding, December 31, 2014
|
|
|
8,374,112
|
|
1.19
|
|
| Schedule Of Share-based Compensation Shares Authorized Under Warrants Plans by exercise price range |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Aggregate
|
|
|
|
Exercise
|
|
|
|
Remaining
|
|
Intrinsic
|
|
|
|
price
|
|
Number
|
|
contractual
|
|
Value
|
|
|
|
$
|
|
of warrants
|
|
life (years)
|
|
$
|
|
Expiry
|
|
|
|
|
|
|
|
|
|
|
|
0.92
|
|
50,000
|
|
0.7
|
|
-
|
|
September 4, 2015
|
|
1.12
|
|
100,000
|
|
0.8
|
|
-
|
|
November 1, 2015
|
|
0.93
|
|
25,000
|
|
1.2
|
|
-
|
|
March 5, 2016
|
|
1.35
|
|
2,354,545
|
|
2.0
|
|
-
|
|
December 19, 2016
|
|
1.12
|
|
4,294,167
|
|
3.5
|
|
-
|
|
June 24, 2018
|
|
1.17
|
|
1,550,400
|
|
3.6
|
|
-
|
|
August 27, 2018
|
|
|
|
|
|
|
|
|
|
|
|
|
|
8,374,112
|
|
3.0
|
|
-
|
|
|
|
| Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions |
|
|
|
|
|
|
|
2014
|
2013
|
2012
|
|
|
|
|
|
|
Expected warrant life (years)
|
-
|
1.5 - 3
|
1.5
|
|
Expected option life (years)
|
3.49-3.56
|
3.41-3.51
|
3.29 - 3.37
|
|
Expected volatility
|
61-66%
|
61-66%
|
63-78%
|
|
Risk-free interest rate
|
1.1-1.4%
|
0.9-1.4%
|
1.0-1.3%
|
|
Forfeiture rate (warrants)
|
0.0%
|
0.0%
|
0.0%
|
|
Forfeiture rate (options)
|
4.5-4.7%
|
4.2-4.4%
|
4.6-4.8%
|
|
Forfeiture rate (RSUs)
|
8.1%
|
7.7%
|
12.5-22.3%
|
|
Expected dividend rate
|
0%
|
0%
|
0%
|
|