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Note 10 - Industry Segments (Detail) - Industry Segments - Asset Information (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Identifiable assets	$ 9,895	$ 10,105
Information Technology [Member]
Identifiable assets	1,725	1,791
Industrial Products [Member]
Identifiable assets	6,235	6,654
Operating Segments [Member]
Identifiable assets	7,960	8,445
Corporate [Member]
Identifiable assets	$ 1,935	$ 1,660

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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