v3.3.1.900
Income Taxes - Provision for Income Tax Recovery/Expense (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Effective Income Tax Rate Reconciliation, Amount [Abstract]      
Earnings (loss) before income taxes $ (18,790) $ (22,311) $ (4,837)
Expected income tax expense (recovery) at Canadian statutory income tax rate of 26.51% (2014-26.51%) (4,980) (5,915) (1,282)
Permanent differences 1,333 1,203 435
Share issuance costs (3,734) 0 0
Effect of change in tax rates 0 0 (163)
Utilization of tax credits 0 0 (93)
Other (8) (43) 0
Foreign rate differential (44) (3) (2)
Increase (decrease) in valuation allowance 7,433 4,758 1,105
Provision for income tax (recovery) expense 0 0 0
Foreign income (loss) $ 234 $ 14 $ (14)
Canada Revenue Agency      
Operating Loss Carryforwards [Line Items]      
Canadian statutory income tax rate 26.51% 26.51%