Income Taxes (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Operating Loss Carryforwards [Line Items]
Income tax expense	$ 0	$ 0	$ 0	$ 87,000
Accrued interest or penalties related to uncertain tax positions	0		0
Valuation allowance					75,600,000
U.S. tax [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards					160,800,000
Canadian Tax [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards					$ 21,800,000
Expiration dates of operating loss carryforwards			Dec. 31, 2033