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Note 6 - Income Taxes (Detail) - The income tax expense in the accompanying condensed consolidated financial statements consists of the following: (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Current tax expense (benefit) $ 1,169 $ 748 $ 144 $ (354)
Deferred tax expense (benefit) (185) 397 (3,136) 1,665
Total tax expense (benefit) $ 984 $ 1,145 $ (2,992) $ 1,311