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Business Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011
Revenue information shown by geographic region
Total revenues	$ 7,881	$ 8,258	$ 24,631	$ 24,539
United States [Member]
Revenue information shown by geographic region
Total revenues	4,516	4,403	13,180	13,368
Europe [Member]
Revenue information shown by geographic region
Total revenues	1,686	1,721	5,463	5,204
Rest of Americas [Member]
Revenue information shown by geographic region
Total revenues	394	738	1,722	1,801
Asia/Pacific Rim [Member]
Revenue information shown by geographic region
Total revenues	$ 1,285	$ 1,396	$ 4,266	$ 4,166

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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

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