Summary of Significant Accounting Policies (Details 4) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Sep. 29, 2012	Dec. 31, 2011
Schedule of Intangible assets
Gross Carrying Amount	$ 960	$ 960
Accumulated Amortization	358	215
Net Carrying Amount	602	745
Patents [Member]
Schedule of Intangible assets
Gross Carrying Amount	720	720
Accumulated Amortization	318	187
Net Carrying Amount	402	533
Customer Relations [Member]
Schedule of Intangible assets
Gross Carrying Amount	240	240
Accumulated Amortization	40	28
Net Carrying Amount	$ 200	$ 212
Amortization Life	13 years 4 months 24 days

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph a(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Name:	us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant