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INTANGIBLE ASSETS - Identified Intangible Assets (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2012	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Intangibles, net	$ 313,000		$ 313,000		$ 500,000
Amortization expense	100,000	100,000	200,000	200,000
Developed technology
Finite-Lived Intangible Assets [Line Items]
Intangibles, gross	1,250,000		1,250,000		1,250,000
Accumulated amortization	(937,000)		(937,000)		(750,000)
Intangibles, net	$ 313,000		$ 313,000		$ 500,000

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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