Note 8 - Net Income Per Common Share (Tables)

9 Months Ended

Sep. 30, 2015

Earnings Per Share [Abstract]

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

	Three Months Ended September 30,				Nine Months Ended September 30,
(dollars and shares in thousands, except per share data)	2015		2014		2015		2014
Basic:
Net income available to common shareholders	$	21,283	$	13,937	$	61,280	$	39,097
Average common shares outstanding		33,401		26,024		32,625		25,978
Basic net income per common share	$	0.64	$	0.54	$	1.88	$	1.50
Diluted:
Net income available to common shareholders	$	21,283	$	13,937	$	61,280	$	39,097
Average common shares outstanding		33,401		26,024		32,625		25,978
Adjustment for common share equivalents		625		630		653		640
Average common shares outstanding-diluted		34,026		26,654		33,278		26,618
Diluted net income per common share	$	0.63	$	0.52	$	1.84	$	1.47
Anti-dilutive shares		-		21		11		21