Income Taxes - Deferred Income Taxes - Narrative (Detail) - USD ($)	3 Months Ended
	May 03, 2020	Apr. 28, 2019
Income Taxes [Line Items]
foreign income tax credits - U.S.	$ 783,000	$ 1,252,000
U.S. foreign income tax credits, expiration period	10 years
U.S. Federal Tax Authorities [Member]
Income Taxes [Line Items]
Operating Loss Carryforwards	$ 4,400,000
Operating loss carryforwards, related future tax benefits	$ 925,000
U.S. Federal Tax Authorities [Member] | Earliest Tax Year [Member]
Income Taxes [Line Items]
Operating Loss Carry forwards Expiration Year	2027
U.S. Federal Tax Authorities [Member] | Latest Tax Year [Member]
Income Taxes [Line Items]
Operating Loss Carry forwards Expiration Year	2036
State and Local Jurisdiction [Member]
Income Taxes [Line Items]
Operating Loss Carryforwards	$ 51,900,000
Operating loss carryforwards, related future tax benefits	$ 931,000
State and Local Jurisdiction [Member] | Earliest Tax Year [Member]
Income Taxes [Line Items]
Operating Loss Carry forwards Expiration Year	2021
State and Local Jurisdiction [Member] | Latest Tax Year [Member]
Income Taxes [Line Items]
Operating Loss Carry forwards Expiration Year	2040