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Note 15 - Shares Outstanding and Earnings Per Share: (Detail) - Schedule of Earnings Per Share (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Weighted average basic shares outstanding 10,960 10,935 10,956 10,935
Assumed exercise of stock options and issuance of stock awards 29 12 31 12
Weighted average diluted shares outstanding 10,989 10,947 10,987 10,947
Net income (in Dollars) $ 4,526 $ 7,946 $ 10,756 $ 18,269
Basic earnings per share (in Dollars per share) $ 0.41 $ 0.73 $ 0.98 $ 1.67
Diluted earnings per share (in Dollars per share) $ 0.41 $ 0.73 $ 0.98 $ 1.67
Anti-dilutive securities outstanding 178 118 178 118