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Note 14 - Segment Information (Detail) - Total assets by geographic area (USD $) In Thousands, unless otherwise specified	Sep. 29, 2012	Dec. 31, 2011	Oct. 01, 2011
Total assets	$ 88,742	$ 86,178	$ 93,930
US [Member]
Total assets	74,629		78,038
Canada [Member]
Total assets	12,770		15,013
Puerto Rico [Member]
Total assets	1,343		621
Ireland [Member]
Total assets			$ 258

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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