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Note 8 - Intangible Assets (Detail) - Components of intangible assets (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 29, 2012
Balance as of December 31, 2011	$ 210
Intangible assets acquired during the thirty-nine week period ended September 29, 2012	250
Amortization of intangibles during the thirty-nine week period ended September 29, 2012	(90)
Balance as of September 29, 2012	370
Information Technology [Member]
Balance as of December 31, 2011	210
Amortization of intangibles during the thirty-nine week period ended September 29, 2012	(78)
Balance as of September 29, 2012	132
Engineering [Member]
Intangible assets acquired during the thirty-nine week period ended September 29, 2012	250
Amortization of intangibles during the thirty-nine week period ended September 29, 2012	(12)
Balance as of September 29, 2012	$ 238

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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