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Note 2 - Earnings Per Common Share (Details) - Basic and Diluted Earnings Per Common Share (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 9 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Dec. 31, 2013
Numerator:      
Net income (in Dollars) $ 5,287 $ 7,202 $ 22,945
Denominator:      
Basic earnings per common share - weighted-average shares 33,340 33,182  
Effect of dilutive stock options 291 140  
Diluted earnings per common share - weighted-average shares and assumed conversions 33,631 33,322  
Basic earnings per common share (in Dollars per share) $ 0.16 $ 0.22  
Diluted earnings per common share (in Dollars per share) $ 0.16 $ 0.22