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Note 6 - Goodwill and Intangible Assets (Detail) - Estimated future amortization expense related to definite-lived intangible assets (USD $)
Dec. 31, 2012
Dec. 31, 2011
2013 $ 22,000  
2014 19,000  
2015 19,000  
2016 19,000  
2017 11,000  
Thereafter 23,000  
$ 113,000 $ 135,000