TAXES ON INCOME (Narrative) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 04, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Tax Disclosure [Line Items]        
Income tax rates   26.50% 26.50% 25.00%
Change in amount for which valuation allowance provided   $ 1,931 $ 2,258
Deferred tax benefit (expense)   (49) (230) $ 345
Unrecognized tax benefits   418 0  
Accrued interest related to uncertain tax positions   30 $ 0  
European Subsidiaries [Member]        
Income Tax Disclosure [Line Items]        
Net operating loss carry forwards   2,195    
Domestic Tax Authority [Member]        
Income Tax Disclosure [Line Items]        
Net operating loss carry forwards   $ 46,620    
Foreign Tax Authority [Member]        
Income Tax Disclosure [Line Items]        
Net operating loss carry forwards      
Amended Rate Year One [Member]        
Income Tax Disclosure [Line Items]        
Income tax rates   16.00%    
Minimum [Member]        
Income Tax Disclosure [Line Items]        
Income tax rates   10.00%    
Minimum [Member] | Subsequent Event [Member]        
Income Tax Disclosure [Line Items]        
Income tax rates 25.00%      
Maximum [Member]        
Income Tax Disclosure [Line Items]        
Income tax rates   25.00%    
Maximum [Member] | Subsequent Event [Member]        
Income Tax Disclosure [Line Items]        
Income tax rates 26.50%