Annual report pursuant to Section 13 and 15(d)

Income Taxes (Narrative) (Details)

v3.6.0.2
Income Taxes (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Jan. 02, 2016
Jan. 03, 2015
Tax Credit Carryforward [Line Items]      
Federal statutory rate 35.00% 35.00% 35.00%
Accumulated undistributed earnings of subsidiaries $ 19,597    
Deferred tax liability not recognized from undistributed earnings 3,083    
Significant unrecognized tax benefits $ 0 $ 0  
Research Tax Credit Carryforward [Member]      
Tax Credit Carryforward [Line Items]      
Period of tax credit carryforwards 20 years    
Expiration year for tax credit carryforwards 2036    
Research credit carryforwards $ 339    
Foreign Tax Authority [Member]      
Tax Credit Carryforward [Line Items]      
Foreign operating loss carryforward 1,444    
Operating loss carryforward valuation allowance 424    
Foreign tax credit carryforwards $ 3,351    
Period of tax credit carryforwards 10 years    
Expiration year for tax credit carryforwards 2026