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Note 6 - Income Taxes (Details Textual) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended			12 Months Ended
	Feb. 03, 2018	Jan. 28, 2017	May 05, 2018	Dec. 30, 2017	Apr. 29, 2017	Feb. 02, 2019	Dec. 30, 2017
Effective Income Tax Rate Reconciliation, Percent, Total	17.80%	35.80%	45.20%		40.60%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent							34.00%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Amount			$ 100				$ 200
Income Tax Expense (Benefit), Total	$ (183)	$ (424)	$ 292		$ 1,795
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount				$ 1,400
Scenario, Forecast [Member]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent						21.00%

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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