INCOME TAXES, VALUATION ALLOWANCE (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Valuation Allowance [Line Items]
Valuation allowance	$ 8,458	$ 9,028
Colombia
Valuation Allowance [Line Items]
Valuation allowance	300	0
Mexico
Valuation Allowance [Line Items]
Valuation allowance	2,400	2,500
Sweden
Valuation Allowance [Line Items]
Valuation allowance	100	100
Switzerland
Valuation Allowance [Line Items]
Valuation allowance	100	1,000
Taiwan
Valuation Allowance [Line Items]
Valuation allowance	1,300	1,200
Ukraine(3)
Valuation Allowance [Line Items]
Valuation allowance	100	100
United States
Valuation Allowance [Line Items]
Valuation allowance	4,100	4,000
Other Jurisdictions
Valuation Allowance [Line Items]
Valuation allowance	$ 100	$ 100