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Income Taxes - Additional Information (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Income Taxes [Line Items] |  |
Net operating loss, domestic | $ 59,600,000 |
Operating loss carry forwards expiration year | 2033 |
Corporate tax rate | 21.00% | 34.00%
Accrual relating to uncertain tax positions | $ 0 |
Maximum |  |
Income Taxes [Line Items] |  |
Corporate tax rate |  | 35.00%
Canada |  |
Income Taxes [Line Items] |  |
Accumulated non-capital losses in Canada | $ 1,500,000 |

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