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Fair Value (Details Textual) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 29, 2012
Fair Value (Textual) [Abstract]
Nonrecurring fair value measurements of assets and liabilities subsequent to initial recognition	$ 0
Individual available for sale securities in a material unrealized loss position	0

Disclosure regarding factors used to determine that the impairment of securities not categorized as either held-to-maturity securities or trading securities (hence equal to available for sale securities) where cost exceeds fair value is not an other than temporary impairment (OTTI). This item contains disclosure of the number of investment positions in the available-for-sale investments determined to be temporarily impaired.

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