Consolidated Statements of Income and Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Consolidated Statements of Comprehensive Income [Abstract]
SALES	$ 392,666	$ 421,389
COST OF SALES	271,506	292,090
GROSS PROFIT	121,160	129,299
OPERATING EXPENSES
Selling expenses	77,398	76,537
General and administrative expenses	34,042	35,956
Total operating expenses	111,440	112,493
INCOME FROM OPERATIONS	9,720	16,806
OTHER INCOME (EXPENSE)
Interest income	1,059	1,001
Interest expense	(1,997)	(2,689)
Other income	1,479	3,241
Total other income	541	1,553
INCOME BEFORE INCOME TAX EXPENSE	10,261	18,359
INCOME TAX EXPENSE	(4,077)	(5,054)
NET INCOME	6,184	13,305
Net loss attributable to the non-controlling interest	580	264
NET INCOME ATTRIBUTABLE TO THE COMPANY	6,764	13,569
NET INCOME	6,184	13,305
Foreign currency translation loss	(6,546)	(5,029)
COMPREHENSIVE (LOSS) INCOME	(362)	8,276
Comprehensive loss attributable to the noncontrolling interest	612	265
COMPREHENSIVE INCOME ATTRIBUTABLE TO THE COMPANY	$ 250	$ 8,541
EARNINGS PER SHARE ATTRIBUTABLE TO THE COMPANY'S STOCKHOLDERS:
Basic and diluted	$ 0.46	$ 0.92
Weighted average number of shares outstanding Basic and diluted	14,787,270	14,784,847