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Business Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Revenue information shown by geographic region
Revenues	$ 8,445	$ 8,085	$ 16,750	$ 16,281
United States [Member]
Revenue information shown by geographic region
Revenues	4,442	4,376	8,664	8,965
Europe [Member]
Revenue information shown by geographic region
Revenues	1,932	1,787	3,777	3,483
Rest of Americas [Member]
Revenue information shown by geographic region
Revenues	626	615	1,328	1,063
Asia/Pacific Rim [Member]
Revenue information shown by geographic region
Revenues	$ 1,445	$ 1,307	$ 2,981	$ 2,770

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- Definition

Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

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