Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Net sales	$ 70,726	$ 72,080	$ 140,630	$ 141,284
Cost of goods sold	26,918	28,277	53,939	56,203
Gross profit	43,808	43,803	86,691	85,081
Operating expenses:
Selling expenses	21,949	22,950	46,350	44,230
General and administrative expenses	18,616	19,480	38,045	41,277
Total SG&A	40,565	42,430	84,395	85,507
Impairment loss	0	132	0	3,046
Operating expenses	40,565	42,562	84,395	88,553
Operating income (loss)	3,243	1,241	2,296	(3,472)
Interest expense	(142)	(211)	(278)	(455)
Other income (expenses), net	24	81	(209)	(67)
Income (loss) from continuing operations before income taxes	3,125	1,111	1,809	(3,994)
Income tax expense (benefit)	199	313	254	(470)
Income (loss) from continuing operations	2,926	798	1,555	(3,524)
Income and gain from discontinued operations, net of income taxes	0	0	0	1,367
Net income (loss)	$ 2,926	$ 798	$ 1,555	$ (2,157)
Basic income (loss) per share of common stock:
Continuing operations	$ 0.34	$ 0.09	$ 0.18	$ (0.41)
Discontinued operations	0.00	0.00	0.00	0.16
Net income (loss) per share	0.34	0.09	0.18	(0.25)
Diluted income (loss) per share of common stock:
Continuing operations	0.33	0.09	0.17	(0.41)
Discontinued operations	0.00	0.00	0.00	0.16
Net income (loss) per share	$ 0.33	$ 0.09	$ 0.17	$ (0.25)
Comprehensive income (loss)
Adjustment for foreign currency translation	$ 97	$ 321	$ (422)	$ 76
Net comprehensive income (loss)	$ 3,023	$ 1,119	$ 1,133	$ (2,081)