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Organization and Description of Business and Accounting Policies (Details 1) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 30, 2016
Jan. 01, 2016
Jan. 02, 2015
Organization And Description Of Business And Accounting Policies [Line Items]      
Balance $ (1,580) $ (1,070) $ 282
Other comprehensive income (loss) 641 (562) (1,863)
Tax effect (111) 52 511
Balance (1,050) (1,580) (1,070)
Accumulated Translation Adjustment [Member]      
Organization And Description Of Business And Accounting Policies [Line Items]      
Balance (145) (176) 779
Other comprehensive income (loss) 224 52 (1,527)
Tax effect (68) (21) 572
Balance 11 (145) (176)
Accumulated Defined Benefit Plans Adjustment [Member] | JAPAN      
Organization And Description Of Business And Accounting Policies [Line Items]      
Balance 95 121 107
Other comprehensive income (loss) (9) (38) 23
Tax effect 2 12 (9)
Balance 88 95 121
Accumulated Defined Benefit Plans Adjustment [Member] | SWITZERLAND      
Organization And Description Of Business And Accounting Policies [Line Items]      
Balance (1,530) (1,015) (604)
Other comprehensive income (loss) 428 (576) (359)
Tax effect (47) 61 (52)
Balance $ (1,149) $ (1,530) $ (1,015)