Note 7 - Net Income per Common Share (Tables)

6 Months Ended

Jun. 30, 2014

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Six Months Ended				Three Months Ended
	June 30,				June 30,
(dollars and shares in thousands, except per share data)	2014		2013		2014		2013
Basic:
Net income available to common shareholders	$	25,160	$	22,964	$	12,802	$	11,533
Average common shares outstanding		25,955		25,641		25,982		25,742
Basic net income per common share	$	0.97	$	0.90	$	0.49	$	0.45
Diluted:
Net income available to common shareholders	$	25,160	$	22,964	$	12,802	$	11,533
Average common shares outstanding		25,955		25,641		25,982		25,742
Adjustment for common share equivalents		645		593		647		592
Average common shares outstanding-diluted		26,600		26,234		26,629		26,334
Diluted net income per common share	$	0.95	$	0.88	$	0.48	$	0.44
Anti-dilutive shares		21,000		101,466		21,000		95,966