Stock Based Compensation (Tables)

9 Months Ended

Sep. 30, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

Non-cash employee compensation expense recognized in general and administrative expense in the statements of operations with respect to our non-cash employee compensation plans are as follows:

	For the three months ended September 30,				For the nine months ended September 30,
	2012		2011		2012		2011
Total stock compensation expense	$	1,033	$	564	$	4,737	$	2,784

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

Fair values of options granted in the first nine months of 2012 and 2011 were based on the assumptions noted in the following table:

	For the nine months ended September 30,
	2012	2011
Expected volatility	57.11 to 87.50%	66.33 to 69.79%
Risk-free interest rate	0.36 to 1.91%	1.58 to 2.26%
Expected lives	2.77 to 8.06	5.63 to 8.47
Dividend yield	0%	0%

Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding [Table Text Block]

A summary of option activity under the Plan during the nine months ended September 30, 2012:

	Options (‘000)		Weighted– Average Exercise price (Cdn$)	Weighted– Average Remaining Contractual Term (Years)	Aggregate intrinsic  value Cdn($000)
Outstanding as of December 31, 2011	8,539		3.18	7.0	95
Granted	5,054		1.97	5.9	—
Exercised	(138	)	1.36	2.6	101
Forfeited, canceled and expired	(963	)	2.89	6.6	—
Outstanding as of September 30, 2012	12,492		2.73	6.4	767
Exercisable as of September 30, 2012	8,057		3.00	5.9	527