Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Statement [Abstract]
Net sales	$ 69,711	$ 69,904
Cost of goods sold	27,252	27,021
Gross profit	42,459	42,883
Operating expenses:
Selling expenses	22,753	24,401
General and administrative expenses	18,537	19,429
Operating expenses	41,290	43,830
Operating income (loss)	1,169	(947)
Interest expense	(166)	(136)
Other income (expenses), net	123	(233)
Income (loss) before income taxes	1,126	(1,316)
Income tax expense	$ 109	$ 55
Earnings Per Share, Basic	$ 0.12	$ (0.16)
Earnings Per Share, Diluted	$ 0.11	$ (0.16)
Diluted income (loss) per share of common stock:
Weighted Average Number of Shares Outstanding, Basic	8,771	8,706
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	131	0
Weighted Average Number of Shares Outstanding, Diluted	8,902	8,706
Comprehensive income (loss)
Net Income (Loss) Attributable to Parent	$ 1,017	$ (1,371)
Adjustment for foreign currency translation	957	(519)
Net comprehensive income (loss)	$ 1,974	$ (1,890)