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Income Taxes - Additional Information (Details) | 3 Months Ended
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May 05, 2018 USD ($)
Income Taxes [Line Items] |
Deferred tax assets | $ 53,500,000
Deferred tax liabilities | 5,400,000
Deferred tax assets, valuation allowance | $ 48,100,000
Federal net operating loss carry forwards expiration period minimum | 2022
Federal net operating loss carry forwards expiration period maximum | 2036
Net operating loss carryforwards not subject to expiration | $ 19,400,000
U.S. federal corporate tax rate | 21.00%
Tax expenses of other comprehensive income | $ 26,000
Unrecognized tax benefit | 2,000,000
Federal |
Income Taxes [Line Items] |
Net operating loss carryforwards | 141,400,000
State and Local Jurisdiction |
Income Taxes [Line Items] |
Net operating loss carryforwards | 91,100,000
Canada |
Income Taxes [Line Items] |
Net operating loss carryforwards | $ 3,000,000

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