Income Taxes - Earnings, Income taxes and rate reconciliation (Details) - USD ($) $ in Thousands			12 Months Ended
	Jan. 01, 2018	Dec. 31, 2017	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Earnings from continuing operations before income taxes:
Domestic			$ 86,528	$ 85,050	$ 78,707
Foreign			5,902	3,259	4,184
Earnings before income taxes			92,430	88,309	82,891
Current:
Federal			18,565	12,543	11,710
State			5,459	4,474	3,775
Foreign			1,650	1,979	707
Total current			25,674	18,996	16,192
Deferred-Domestic			(1,870)	3,141	1,690
Deferred-Foreign			133	(119)	308
Income taxes			$ 23,937	$ 22,018	$ 18,190
Reconciliations of the United States federal statutory income tax rates and effective tax rates
Statutory rate (as a percent)	21.00%	35.00%	21.00%	21.00%	33.70%
State income taxes-net of federal income tax benefit (as a percent)			4.40%	4.60%	3.60%
Impact of foreign operations (as a percent)			0.20%	0.70%	(0.60%)
Valuation allowance against foreign losses and other carryforwards (as a percent)			0.10%	(0.10%)	1.10%
Impact of U.S. Tax Reform on deferred tax amounts (as a percent)					(0.144)
Other, net (as a percent)			0.20%	(1.30%)	(1.50%)
Effective rate for continuing operations (as a percent)			25.90%	24.90%	21.90%
Impact of U.S. Tax Reform on deferred tax					$ 12,000