Unaudited Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2017	Jul. 03, 2016	Jul. 02, 2017	Jul. 03, 2016
Income Statement [Abstract]
Net sales	$ 243,671	$ 241,409	$ 496,275	$ 475,937
Cost of sales	164,363	165,152	333,345	328,715
Gross profit	79,308	76,257	162,930	147,222
Selling and administrative expense	74,188	72,259	148,832	143,478
Operating income	5,120	3,998	14,098	3,744
Interest expense	380	429	648	881
Income before income taxes	4,740	3,569	13,450	2,863
Income taxes	1,962	1,445	5,346	1,858
Net income	$ 2,778	$ 2,124	$ 8,104	$ 1,005
Earnings per share:
Basic	$ 0.13	$ 0.10	$ 0.37	$ 0.05
Diluted	0.13	0.10	0.37	0.05
Dividends per share	$ 0.15	$ 0.125	$ 0.30	$ 0.25
Weighted-average shares of common stock outstanding:
Basic	21,746	21,646	21,715	21,614
Diluted	21,871	21,740	21,923	21,784