Employee Benefit Plans (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jan. 02, 2015	Jan. 03, 2014	Dec. 28, 2012
Change in Plan Assets:
Plan assets at fair value, beginning of period	$ 3,517	$ 3,053
Actual return on plan assets (including foreign currency impact)	230	(144)
Employer contributions	518	270	284
Plan assets at fair value, end of period	2,705	3,517	3,053
Swiss Plan [Member]
Change in Projected Benefit Obligation:
Projected benefit obligation, beginning of period	5,183	4,853
Service cost	297	320
Interest cost	114	101
Participant contributions	241	239
Benefits paid	(116)	(157)
Actuarial (gain) loss on obligation	737	(173)
Curtailments	(1,629)	0
Projected benefit obligation, end of period	4,827	5,183
Change in Plan Assets:
Plan assets at fair value, beginning of period	3,517	3,053
Actual return on plan assets (including foreign currency impact)	(230)	144
Employer contributions	241	239
Participant contributions	241	239
Benefits paid	(116)	(158)
Curtailment distributions	(948)	0
Plan assets at fair value, end of period	2,705	3,517
Funded status (pension liability), end of year	(2,122)	(1,666)
Amount Recognized in Accumulated Other Comprehensive Loss, net of tax:
Actuarial loss on plan assets	(773)	(521)
Actuarial loss on benefit obligation	(902)	(331)
Actuarial gain recognized in current year	266	247
Effect of curtailments	528	0
Accumulated other comprehensive loss	(881)	(605)
Accumulated benefit obligation at end of year	(4,488)	(4,824)
Japan Plan [Member]
Change in Projected Benefit Obligation:
Projected benefit obligation, beginning of period	1,049	1,188
Service cost	157	158
Interest cost	9	8
Benefits paid	(66)	(123)
Actuarial (gain) loss on obligation	(55)	47
Foreign exchange adjustment	(137)	(229)
Projected benefit obligation, end of period	957	1,049
Change in Plan Assets:
Plan assets at fair value, beginning of period	0	0
Actual return on plan assets (including foreign currency impact)	0	0
Employer contributions	0	0
Benefits paid	0	0
Distribution of plan assets	0	0
Foreign exchange adjustment	0	0
Plan assets at fair value, end of period	0	0
Funded status (pension liability), end of year	(957)	(1,049)
Amount Recognized in Accumulated Other Comprehensive Loss, net of tax:
Transition obligation	(26)	81
Actuarial gain recognized in current year	146	191
Prior service cost	9	17
Net loss	(8)	(184)
Accumulated other comprehensive loss	121	105
Accumulated benefit obligation at end of year	$ 828	$ (857)

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The amount of curtailment distributions made during the period resulting in a decrease in plan assets.

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Amount of gain (loss) from a decision to temporarily deviate from the substantive plan, or from a change in benefit obligation from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover or salary scale.

+ References

No definition available.

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Amount of gain (loss) from a decision to temporarily deviate from the substantive plan, or from a change plan asset value from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover or salary scale.

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Defined Benefit Plan Before Adoption Of Recognition.

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The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents decrease to plan assets.

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This is represent about the foreign exchange adjustment change in plan of assets during the period.

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No definition available.

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The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

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For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same.

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After tax net amount of gain (loss) that are not yet recognized as a component of net periodic benefit cost, and that are recognized as increases (decreases) in other comprehensive income as they arise.

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No definition available.

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The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable.

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Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan.

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The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation.

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The amount of the transition obligation or asset recognized in net periodic benefit cost.

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1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

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The increase in the fair value of plan assets from contributions made by the employer.

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The amount of contributions made by plan participants. This item represents a periodic increase to the plan obligation and an increase to plan assets.

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The amount of decrease that is related to an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services.

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The amount of decrease in the plan assets attributed to the sale, liquidation, spin-off or other divestiture of a corporate division or subsidiary.

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For pension plans, the amount of Increase or Decrease in the accumulated benefit obligation related to the effects of a settlement or curtailment.

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Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

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The amount of increase or decrease in plan assets attributed to foreign currency changes. The effects of foreign currency exchange rate changes that are to be disclosed are those applicable to plans of a foreign operation whose functional currency is not the reporting currency.

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The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total.

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The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

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