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Employee Benefit Plans (Tables)
 12 Months Ended
Dec. 28, 2012
Swiss Plan [Member]
  
Schedule of Defined Benefit Plans Disclosures [Table Text Block]

The funded status of the Swiss benefit plan at December 28, 2012 and December 30, 2011 is as follows:

  

    2012     2011  
Change in Projected Benefit Obligation:                
Projected benefit obligation, beginning of period   $ 4,710     $ 4,868  
Service cost     301       414  
Interest cost     116       127  
Participant contributions     234       275  
Benefits paid     (639 )     (641 )
Actuarial (gain) loss on obligation     131       (333 )
    Projected benefit obligation, end of period   $ 4,853     $ 4,710  
Changes in Plan Assets:                
Plan assets at fair value, beginning of period   $ 3,058     $ 3,074  
Actual return on plan assets (including foreign currency impact)     166       75  
Employer contributions     234       275  
Participant contributions     234       275  
Benefits paid     (639 )     (641 )
  Plan assets at fair value, end of period   $ 3,053     $ 3,058  
Net Amount Recognized in Consolidated Balance Sheets:                
Underfunded, end of year   $ (1,800 )   $ (1,652 )
Other long term liabilities   $ (1,800 )   $ (1,652 )
Amount  Recognized in Accumulated Other Comprehensive Loss, Net of Tax:                
 Actuarial loss on plan assets   $ (558 )   $ (610 )
 Actuarial loss on benefit obligation     (466 )     (364 )
 Actuarial gain recognized in current year     205       163  
  Accumulated other comprehensive loss   $ (819 )   $ (811 )
    Accumulated benefit obligation at end of year   $ (4,410 )   $ (4,087 )
Schedule of Net Benefit Costs [Table Text Block]

Net periodic pension cost associated with the Swiss Plan in the years ended December 28, 2012, December 30, 2011, and December 31, 2010, include the following components (in thousands):

 

    2012     2011     2010  
Service Cost   $ 301     $ 414     $ 328  
Interest Cost     116       127       120  
Expected return on plan assets     (100 )     (101 )     (91 )
Actuarial loss recognized in current year     54       97       55  
Net periodic pension cost   $ 371     $ 537     $ 412
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]

Changes in other comprehensive loss (net of tax) associated with the Swiss Plan in the year ended December 28, 2012 and December 30, 2011 include the following components (in thousands):

 

    2012     2011  
Actuarial gain (loss) of current year   $ (51 )   $ 238  
Actuarial (loss) income recorded in current year     42       75  
Change in other comprehensive loss   $ (9 )   $ 313
Schedule of Assumptions Used [Table Text Block]

Net periodic pension cost and projected and accumulated pension obligation for the Company’s Swiss Plan were calculated on December 28, 2012 and December 30, 2011 using the following assumptions:

 

    2012     2011  
Discount rate     2.00 %     2.50 %
Salary increases     2.00 %     3.00 %
Expected return on plan assets     3.00 %     3.35 %
Expected average remaining working lives in years     10.30       10.60
Schedule of Expected Benefit Payments [Table Text Block]

Plan assets categories in the Swiss Plan are comprised of the following (in thousands):

 

    2012     2011  
Bonds and loans   $ 2,259     $ 2,186  
Real estate (including real estate funds)     684       765  
Equity securities     76       73  
Liquid assets     34       34  
    $ 3,053     $ 3,058
Schedule of Allocation of Plan Assets [Table Text Block]

The estimated future benefit payments for the Swiss Plan are as follows (in thousands):

 

Fiscal Year      
2013   $ 51  
2014     50  
2015     52  
2016     55  
2017     58  
2018 – 2022     336  
Total   $ 602
Japan Plan [Member]
  
Schedule of Defined Benefit Plans Disclosures [Table Text Block]

The funded status of the benefit plan at December 28, 2012 and December 30, 2011 is as follows: 

 

    2012     2011  
Change in Projected Benefit Obligation:                
Projected benefit obligation, beginning of period   $ 1,108     $ 782  
Service cost     185       174  
Interest cost     13       6  
Actuarial loss     63       137  
Benefits paid     (65 )     (38 )
Foreign exchange adjustment     (116 )     47  
    Projected benefit obligation, end of period   $ 1,188     $ 1,108  
Changes in Plan Assets:                
Plan assets at fair value, beginning of period   $ —     $ —  
Actual return on plan assets     —       —  
Employer contributions     —       —  
Benefits paid     —       —  
Distribution of plan assets     —       —  
Foreign exchange adjustment     —       —  
  Plan assets at fair value, end of period   $ —     $ —  
Net Amount Recognized in Consolidated Balance Sheets:                
Underfunded, end of period   $ (1,188 )   $ (1,108 )
Other long term liabilities   $ (1,188 )   $ (1,108 )
Amount  Recognized in Accumulated Other Comprehensive Income:                
Transition obligation   $ 117     $ 101  
Actuarial gain     99       207  
Prior service cost     28       29  
  Accumulated  other comprehensive income   $ 244     $ 337  
    Accumulated benefit obligation at end of year   $ (972 )   $ (912 )
Schedule of Net Benefit Costs [Table Text Block]

Net periodic pension cost associated with the Japan Plan for the years ended December 28, 2012, December 30, 2011 and December 31, 2010 include the following components (in thousands):

 

    2012     2011     2010  
Service cost   $ 185     $ 174     $ 234  
Interest cost     13       6       13  
Net amortization of transition obligation     16       16       15  
Actuarial Loss     (58 )     (117 )     (24 )
Prior Service Cost     (1 )     (1 )     (1 )
Net periodic pension cost   $ 155     $ 78     $ 237
Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]

Changes in other comprehensive income (loss) associated with the Japan Plan for the years ended December 30, 2011 and December 31, 2010 include the following components (in thousands):

 

    2012     2011  
Amortization of  transitional obligation   $ 16     $ (16 )
Net actuarial (loss) gain of current year     (62 )     137  
Actuarial loss recorded in current year     (47 )     117  
Prior Service Cost     (1 )     1  
Change in other comprehensive income (loss)   $ (94 )   $ 239
Schedule of Assumptions Used [Table Text Block]

Net periodic pension cost and projected and accumulated pension obligation for the Company’s Japan Plan were calculated on December 28, 2012 and December 30, 2011using the following assumptions:

 

    2012     2011  
Discount rate     .80 %     .70 %
Salary increases     3.00 %     2.00 %
Expected return on plan assets     N/A       N/A  
Expected average remaining working lives in years     8.88       8.61
Schedule of Allocation of Plan Assets [Table Text Block]

The estimated future benefit payments for the Japan Plan are as follows (in thousands):

 

Fiscal Year      
2013   $ 59  
2014     60  
2015     72  
2016     90  
2017     236  
2018 – 2023     388  
Total   $ 905