Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Statement [Abstract]
Net sales	$ 70,243	$ 74,128	$ 210,873	$ 215,412
Cost of goods sold	26,901	29,595	80,840	85,798
Gross profit	43,342	44,533	130,033	129,614
Operating expenses:
Selling expenses	22,240	23,577	68,590	67,807
General and administrative expenses	18,292	20,278	56,337	61,555
Total SG&A	40,532	43,855	124,927	129,362
Impairment loss	0	0	0	3,046
Operating expenses	40,532	43,855	124,927	132,408
Operating income (loss)	2,810	678	5,106	(2,794)
Interest expense	(131)	(182)	(409)	(637)
Other income (expenses), net	(1)	138	(210)	71
Income (loss) from continuing operations before income taxes	2,678	634	4,487	(3,360)
Income tax expense (benefit)	248	174	502	(296)
Income (loss) from continuing operations	2,430	460	3,985	(3,064)
Income and gain from discontinued operations, net of income taxes	0	0	0	1,367
Net income (loss)	$ 2,430	$ 460	$ 3,985	$ (1,697)
Basic income (loss) per share of common stock:
Continuing operations	$ 0.28	$ 0.05	$ 0.46	$ (0.35)
Discontinued operations	0.00	0.00	0.00	0.15
Net income (loss) per share	0.28	0.05	0.46	(0.20)
Diluted income (loss) per share of common stock:
Continuing operations	0.27	0.05	0.45	(0.35)
Discontinued operations	0.00	0.00	0.00	0.15
Net income (loss) per share	$ 0.27	$ 0.05	$ 0.45	$ (0.20)
Comprehensive income (loss)
Adjustment for foreign currency translation	$ (740)	$ (492)	$ (1,162)	$ (416)
Net comprehensive income (loss)	$ 1,690	$ (32)	$ 2,823	$ (2,113)