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Derivative Instruments (Tables)
 9 Months Ended
Sep. 30, 2017
Derivative Instruments [Abstract]  
Unrealized Gain on Derivatives
 
 
Three Months Ended
 
Nine Months Ended
 
 
 
September 30,
 
September 30,
 
Gain/(Loss) on Derivative Instruments
 
2017
 
2016
 
2017
 
2016
 
Derivatives expired March 29, 2016
 
$
-
 
$
-
 
$
-
 
$
41
 
Options to contractors
 
 
(183)
 
 
19
 
 
(340)
 
 
4
 
Gain/(loss) on Derivative Instruments
 
$
(183)
 
$
19
 
$
(340)
 
$
45
 
Schedule of Other Share-based Compensation, Activity
The table below summarizes Canadian dollar denominated contractor option activity, during the interim period:
 
Contractor Options in $CAD
 
Three Month Period
 
 
Nine Month Period
 
 
Weighted-Average
 
Options in Thousands
 
Ending September 30, 2017
 
 
Exercise Price
 
Opening balance
 
 
39
 
 
 
40
 
 
$
1.81
 
Exercised
 
 
-
 
 
 
(1)
 
 
 
2.05
 
Forfeited
 
 
-
 
 
 
-
 
 
 
-
 
Expired
 
 
-
 
 
 
-
 
 
 
-
 
Ending balance
 
 
39
 
 
 
39
 
 
$
1.80