This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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+ Details

Business Segments and Geographic Information (DetailsTextual) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended	1 Months Ended	3 Months Ended	9 Months Ended
	Oct. 02, 2011	Oct. 03, 2010	Oct. 02, 2011	Oct. 03, 2010	Oct. 02, 2011 GEO Amey [Member]	Oct. 02, 2011 GEO Amey [Member]	Feb. 28, 2011 Geo UK [Member] GEO Amey [Member]	Oct. 02, 2011 SACS [Member]	Oct. 02, 2011 SACS [Member]	Jan. 02, 2011 SACS [Member]
Business Segment and Geographical Information (Textual) [Abstract]
Ownership percentage in Entity					50.00%			50.00%	50.00%
Earnings for GEO Amey's operations	$ 272,000	$ 1,149,000	$ 2,352,000	$ 2,868,000	$ 1,100,000	$ 1,100,000
Percentage of joint venture in services							50.00%
Investment in Joint Ventures					1,100,000	1,100,000		9,400,000	9,400,000	13,800,000
Percentage of services provided by Company in contract					80.00%
Business Segment and Geographical Information (Additional Textual) [Abstract]
Dividend received by South African Subsidiary from SAC			$ 5,402,000	$ 3,909,000