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Organization and Description of Business and Accounting Policies (Details 1) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 01, 2016
Jan. 02, 2015
Jan. 03, 2014
Organization And Description Of Business And Accounting Policies [Line Items]      
Balance $ (1,070) $ 282 $ 1,580
Other comprehensive income (loss) (562) (1,863) (707)
Tax effect 52 511 (591)
Balance (1,580) (1,070) 282
Accumulated Translation Adjustment [Member]      
Organization And Description Of Business And Accounting Policies [Line Items]      
Balance (176) 779 2,106
Other comprehensive income (loss) 52 (1,527) (861)
Tax effect (21) 572 (466)
Balance (145) (176) 779
Accumulated Defined Benefit Plans Adjustment [Member] | JAPAN      
Organization And Description Of Business And Accounting Policies [Line Items]      
Balance 121 107 296
Other comprehensive income (loss) (38) 23 (126)
Tax effect 12 (9) (63)
Balance 95 121 107
Accumulated Defined Benefit Plans Adjustment [Member] | SWITZERLAND      
Organization And Description Of Business And Accounting Policies [Line Items]      
Balance (1,015) (604) (822)
Other comprehensive income (loss) (576) (359) 280
Tax effect 61 (52) (62)
Balance $ (1,530) $ (1,015) $ (604)