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Note 15 - Industry Segments (Detail) - Industry Segments - Asset Information (USD $)	Dec. 31, 2012	Dec. 31, 2011
Assets	$ 9,936,000	$ 10,105,000
Operating Segments [Member]
Assets	7,962,000	8,445,000
Corporate [Member]
Assets	$ 1,974,000	$ 1,660,000

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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