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Business Segments (Details Textual)	3 Months Ended		6 Months Ended
	Jun. 30, 2012 Customer country	Jul. 02, 2011 Customer	Jun. 30, 2012	Jul. 02, 2011
Business segments (Additional Textual) [Abstract]
Company's sales accounted			52.00%	55.00%
Number of customers accounted for more than ten percent of revenue	0	0
Individual country accounted	0
Customer [Member]
Business Segments (Textual) [Abstract]
Customer accounted, total revenue	10.00%	10.00%	10.00%	10.00%

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- Definition

Individual country accounted.

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Number of customers accounted for more than ten percent of revenue.

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Share as a percentage to total sales.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 18

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

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-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

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-Section 50

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-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592



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-Name Accounting Standards Codification

-Topic 825

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-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13531-108611

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