Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Net sales	$ 142,303	$ 144,117	$ 284,006	$ 295,322
Cost of sales	103,020	99,581	202,720	202,615
Gross profit	39,283	44,536	81,286	92,707
Selling, general and administrative expenses	33,159	32,041	67,804	70,538
Impairment charges	544	1,329	544	9,874
Operating income	5,580	11,166	12,938	12,295
Interest expense, net	1,785	2,053	3,760	4,072
Income from continuing operations before income taxes	3,795	9,113	9,178	8,223
Income tax expense	1,783	3,429	4,038	5,875
Income from continuing operations	2,012	5,684	5,140	2,348
Income (loss) from discontinued operations, net of income tax	(19)	(190)	(33)	(247)
Net income	$ 1,993	$ 5,494	$ 5,107	$ 2,101
Income per common share from continuing operations:
Basic	$ 0.07	$ 0.19	$ 0.17	$ 0.08
Diluted	0.07	0.19	0.17	0.08
Income (loss) per common share from discontinued operations:
Basic	0.00	(0.01)	0.00	(0.01)
Diluted	0.00	(0.01)	0.00	(0.01)
Net income per share:
Basic	0.07	0.18	0.17	0.07
Diluted	0.07	0.18	0.17	0.07
Dividends declared per share	$ 0.14	$ 0.14	$ 0.27	$ 0.27