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Note 5 - Goodwill and Intangible Assets (Detail) - Estimated Amortization Expense for Future Years (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
2013 April through December $ 190  
2014 105  
2015 50  
2016 50  
2017 50  
2018 and thereafter 100  
Total amortization expense $ 545 $ 608