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Note 12 - Equity Plans: (Detail) - Stock Option Activity (USD $)
In Thousands, except Share data, unless otherwise specified
 9 Months Ended 12 Months Ended
Sep. 30, 2012
Dec. 31, 2011
Outstanding at 46,007  
Outstanding at (in Dollars per share) $ 20.90  
Outstanding at 3 years  
Exercisable at September 30, 2012 42,337  
Exercisable at September 30, 2012 (in Dollars per share) $ 21.34  
Exercisable at September 30, 2012 3 years  
Granted   0
Granted (in Dollars per share)   $ 0
Exercised (2,170) (2,170)
Exercised (in Dollars per share)   $ 4.18
Canceled   (1,500)
Canceled (in Dollars per share)   $ 32.63
Outstanding at 42,337 46,007
Outstanding at (in Dollars per share) $ 21.34 $ 20.90
Outstanding at 3 years  
Outstanding at (in Dollars) $ 152  
Exercisable at September 30, 2012 3 years  
Exercisable at September 30, 2012 (in Dollars) $ 152