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Organization and Description of Business and Accounting Policies (Details 1) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Jan. 03, 2014
Dec. 28, 2012
Dec. 30, 2011
Organization And Description Of Business And Accounting Policies [Line Items]      
Balance, at Begining $ 1,580 $ 2,405 $ 2,100
Other comprehensive income (loss) (707) (827) 395
Tax effect (591) 2 (90)
Balance, at Ending 282 1,580 2,405
Accumulated Translation Adjustment [Member]
      
Organization And Description Of Business And Accounting Policies [Line Items]      
Balance, at Begining 2,106 2,795 2,584
Other comprehensive income (loss) (861) (689) 211
Tax effect (466) 0 0
Balance, at Ending 779 2,106 2,795
Accumulated Defined Benefit Plans Adjustment [Member] | Japan [Member]
      
Organization And Description Of Business And Accounting Policies [Line Items]      
Balance, at Begining 296 423 642
Other comprehensive income (loss) (126) (127) (219)
Tax effect (63) 0 0
Balance, at Ending 107 296 423
Accumulated Defined Benefit Plans Adjustment [Member] | SWITZERLAND
      
Organization And Description Of Business And Accounting Policies [Line Items]      
Balance, at Begining (822) (813) (1,126)
Other comprehensive income (loss) 280 (11) 403
Tax effect (62) 2 (90)
Balance, at Ending $ (604) $ (822) $ (813)