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Note 15 - Shares Outstanding and Earnings Per Share: (Detail) - Earnings Per Share (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Weighted average basic shares outstanding 10,961 10,937 10,958 10,936
Assumed exercise of stock options and issuance of stock awards 6 14 9 13
Weighted average diluted shares outstanding 10,967 10,951 10,967 10,949
Net income (in Dollars) $ 1,639 $ 6,136 $ 12,395 $ 24,405
Basic earnings per share (in Dollars per share) $ 0.15 $ 0.56 $ 1.13 $ 2.23
Diluted earnings per share (in Dollars per share) $ 0.15 $ 0.56 $ 1.13 $ 2.23
Anti-dilutive securities outstanding 190 118 189 118