XML 46 R20.htm IDEA: XBRL DOCUMENT v2.4.0.6
Note 4 - Earnings Per Share (Detail) - Basic and Diluted Earnings per Share (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Numerator:        
Numerator for basic and diluted earnings per share – Net income available to common shareholders (in Dollars) $ 17,422,000 $ 12,518,000 $ 33,328,000 $ 19,785,000
Denominator–        
Denominator for basic earnings per share – weighted average shares outstanding 38,675,464 37,831,211 38,531,254 37,726,829
Effect of dilutive securities–        
Employee and director stock options and restricted share awards 868,722 1,183,785 1,074,120 1,202,492
Denominator for diluted earnings per share – adjusted weighted average shares outstanding and assumed conversions 39,544,186 39,014,996 39,605,374 38,929,321
Basic earnings per common share (in Dollars per share) $ 0.45 $ 0.33 $ 0.86 $ 0.52
Diluted earnings per common share and common share equivalents (in Dollars per share) $ 0.44 $ 0.32 $ 0.84 $ 0.51