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Income Taxes - Additional Information (Details)
 3 Months Ended
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