Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Income Tax Disclosure [Abstract] | ||
| Loss for the year before income taxes | $ (19,920) | $ (33,229) |
| Expected recovery of income taxes | (6,773) | (11,298) |
| State income tax, net of federal benefit | (416) | (518) |
| Stock-based compensation | 99 | 239 |
| Warrants | (10) | (75) |
| Deferred state tax rate adjustment | (227) | |
| Adjustments to deferred assets | 91 | 552 |
| Non-deductible expenses and other | 53 | 118 |
| Change in valuation allowance | 6,956 | 11,209 |
| Total recovery of income taxes | ||