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Employee Benefit Plans (Details Textual)
 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 28, 2012
USD ($)
Dec. 30, 2011
USD ($)
Dec. 31, 2010
USD ($)
Sep. 30, 2009
USD ($)
Sep. 30, 2009
JPY (¥)
Dec. 28, 2012
Fifty Years Old [Member]
USD ($)
Dec. 28, 2012
Swiss Plan [Member]
USD ($)
Dec. 30, 2011
Swiss Plan [Member]
USD ($)
Dec. 31, 2010
Swiss Plan [Member]
USD ($)
Dec. 28, 2012
Japan Plan [Member]
USD ($)
Dec. 30, 2011
Japan Plan [Member]
USD ($)
Dec. 31, 2010
Japan Plan [Member]
USD ($)
Dec. 28, 2012
Pension Cost [Member]
Swiss Plan [Member]
USD ($)
Dec. 28, 2012
Pension Cost [Member]
Japan Plan [Member]
USD ($)
Dec. 28, 2012
Switzerland [Member]
Bond [Member]
Fair Value, Inputs, Level 1 [Member]
Dec. 30, 2011
Switzerland [Member]
Bond [Member]
Fair Value, Inputs, Level 1 [Member]
Dec. 28, 2012
Switzerland [Member]
Equity Securities [Member]
Fair Value, Inputs, Level 1 [Member]
Dec. 30, 2011
Switzerland [Member]
Equity Securities [Member]
Fair Value, Inputs, Level 1 [Member]
Dec. 28, 2012
Switzerland [Member]
Cash and Cash Equivalents [Member]
Fair Value, Inputs, Level 1 [Member]
Dec. 30, 2011
Switzerland [Member]
Cash and Cash Equivalents [Member]
Fair Value, Inputs, Level 1 [Member]
Dec. 28, 2012
Switzerland [Member]
Collateralized Mortgage Backed Securities [Member]
Fair Value, Inputs, Level 2 [Member]
Dec. 30, 2011
Switzerland [Member]
Collateralized Mortgage Backed Securities [Member]
Fair Value, Inputs, Level 2 [Member]
Dec. 28, 2012
Switzerland [Member]
Real Estate [Member]
Fair Value, Inputs, Level 2 [Member]
Dec. 30, 2011
Switzerland [Member]
Real Estate [Member]
Fair Value, Inputs, Level 2 [Member]
Dec. 28, 2012
Switzerland [Member]
Debt Securities [Member]
Fair Value, Inputs, Level 2 [Member]
Dec. 30, 2011
Switzerland [Member]
Debt Securities [Member]
Fair Value, Inputs, Level 2 [Member]
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax                         $ 55,000 $ 26,000                        
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate             2.00% 2.50%   0.80% 0.70%                              
Assumed Pension Benefit Maturity Period             10 to 15 years     10 to 20 years                                
Debt Instrument Maturity Period             8 years                                      
Debt, Weighted Average Interest Rate             2.00% 2.50%                                    
Percentage Of Salary Increment             2.00%     3.00%                                
Defined Benefit Plan, Actual Plan Asset Allocations                             67.00% 65.00% 3.00% 2.00% 1.00% 1.00% 12.00% 14.00% 10.00% 11.00% 7.00% 7.00%
Description Related To The Benefit Based Under The Point System Each point earned is worth a fixed monetary value, 1,000 Yen per point, regardless of the level, grade or zone of the employee. Gross benefits are calculated based on the cumulative number of points earned over the service period multiplied by 1,000 Yen. The mandatory retirement age limit is 60 years old.                                                  
Plan assets at fair value, beginning of period       643,000 58,000,000   3,053,000 3,058,000 3,074,000 0 0 0                            
Defined Benefit Plan Net Periodic Benefit On Partial Settlement 25,000                                                  
Defined Contribution Plan Employees Eligible Payroll 17,000         5,500                                        
Defined Contribution Plan Description The Company makes a contribution of 50% of the employee's contribution up to the first 6% of the employee's compensation.                                                  
Employer contributions 284,000 150,000 123,000       234,000 275,000   0 0                              
Future Estimated Cash Contribution To Swiz Plan 244,000                                                  
Other long term liabilities             $ (1,800,000) $ (1,652,000)   $ (1,188,000) $ (1,108,000)