Employee Benefit Plans (Details 4) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jan. 02, 2015	Jan. 03, 2014
Plan assets at fair value, beginning of period	$ 3,517	$ 3,053
Actual return on plan assets	(230)	144
Purchases, sales and settlement	(582)	320
Plan assets at fair value, end of period	2,705	3,517
Swiss Plan [Member]
Plan assets at fair value, beginning of period	3,517	3,053
Actual return on plan assets	230	(144)
Plan assets at fair value, end of period	2,705	3,517
Swiss Plan [Member] \| Fair Value, Inputs, Level 3 [Member] \| Real Estate Funds [Member]
Plan assets at fair value, beginning of period	363	322
Actual return on plan assets	(29)	13
Purchases, sales and settlement	(73)	28
Plan assets at fair value, end of period	261	363
Swiss Plan [Member] \| Liquid Asset Fund [Member] \| Fair Value, Inputs, Level 3 [Member]
Plan assets at fair value, beginning of period	22	35
Actual return on plan assets	1	(4)
Purchases, sales and settlement	2	(9)
Plan assets at fair value, end of period	25	22
Swiss Plan [Member] \| Bond Fund [Member] \| Fair Value, Inputs, Level 3 [Member]
Plan assets at fair value, beginning of period	3,017	2,623
Actual return on plan assets	(200)	122
Purchases, sales and settlement	(505)	272
Plan assets at fair value, end of period	2,312	3,017
Swiss Plan [Member] \| Equity Funds [Member] \| Fair Value, Inputs, Level 3 [Member]
Plan assets at fair value, beginning of period	115	73
Actual return on plan assets	(2)	13
Purchases, sales and settlement	(6)	29
Plan assets at fair value, end of period	$ 107	$ 115

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Actual Return on Plan Assets (Component of Net Periodic Postretirement Benefit Cost)

-URI http://asc.fasb.org/extlink&oid=6504192

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)(1)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Actual Return on Plan Assets (Component of Net Periodic Pension Cost)

-URI http://asc.fasb.org/extlink&oid=6504226

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Section 35

-Paragraph 50

-URI http://asc.fasb.org/extlink&oid=29635418&loc=d3e12355-114930

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- Definition

Amount of increase (decrease) in plan assets from purchases, sales and settlement of plan obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (d)(iv)(02)(B)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)(iv)(02)(B)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2446-114920

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