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Employee Benefit Plans (Details 2) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 01, 2016
Jan. 02, 2015
Jan. 03, 2014
Swiss Plan [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Current year actuarial gain (loss) on plan assets, net of tax $ (61) $ (375) $ 37
Current year actuarial gain (loss) on benefit obligation, net of tax (635) (846) 135
Actuarial gain recorded in current year, net of tax 57 28 46
Prior service cost 0 0 0
Effect of curtailments 0 782 0
Change in other comprehensive income (loss) (517) (411) 218
Japan Plan [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Amortization of net transition obligation 7 12 12
Amortization of actuarial loss (21) (9) (47)
Actuarial gain recorded in current year, net of tax (10) 13 (153)
Prior service cost 0 (2) (1)
Change in other comprehensive income (loss) $ (24) $ 14 $ (189)