This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

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The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Other Assets (Narrative) (Details) (Giantec Semiconductor, Inc, USD $)	1 Months Ended		3 Months Ended
	Aug. 31, 2011	Jan. 31, 2010	Dec. 31, 2010	Dec. 30, 2010
Giantec Semiconductor, Inc
Entity Information [Line Items]
Investment received from outside investors		$ 3,800,000	$ 4,000,000
Equity method investment in Giantec ownership percentage				44.00%
Loss in equity method investment, Giantec			30,000
Ownership percentage sold in Giantec	37.00%
Proceeds from sale of equity method investments	$ 2,200,000
Sale of Giantec, percentage of ownership after transaction	19.85%