Consolidated Statements of Income and Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Consolidated Statements Of Comprehensive Income [Abstract]
SALES	$ 421,389	$ 460,141
COST OF SALES	292,090	337,893
GROSS PROFIT	129,299	122,248
OPERATING EXPENSES
Selling expenses	76,537	67,730
General and administrative expenses	35,956	32,704
Total operating expenses	112,493	100,434
INCOME FROM OPERATIONS	16,806	21,814
OTHER INCOME (EXPENSE)
Interest income	1,001	1,238
Interest expense	(2,689)	(3,269)
Other income	3,241	2,060
Total other income	1,553	29
INCOME BEFORE INCOME TAX EXPENSE	18,359	21,843
INCOME TAX EXPENSE	(5,054)	(5,477)
NET INCOME	13,305	$ 16,366
Net loss attributable to the non-controlling interest	264
NET INCOME ATTRIBUTABLE TO THE COMPANY	13,569	$ 16,366
NET INCOME	13,305	16,366
Foreign currency translation loss	(5,029)	(506)
COMPREHENSIVE INCOME	8,276	$ 15,860
Comprehensive loss attributable to the noncontrolling interest	265
COMPREHENSIVE INCOME ATTRIBUTABLE TO THE COMPANY	$ 8,541	$ 15,860
EARNINGS PER SHARE:
Basic and diluted	$ 0.92	$ 1.11
Weighted average number of shares outstanding Basic and diluted	14,784,847	14,782,320