Note 4 - Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2016

Notes Tables

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

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2016			2015			2016			2015
	(Dollars in thousands, except per share amounts)
Numerator
Net income	$	26,913		$	19,998		$	36,476		$	28,418
Less: distributed earnings allocated to participating securities		(39	)		(23	)		(79	)		(48	)
Less: undistributed earnings allocated to participating securities		(47	)		(15	)		(36	)		(9	)
Net income attributable to common stockholders (numerator for basic earnings per share)		26,827			19,960			36,361			28,361
Add back: undistributed earnings allocated to participating securities		47			15			36			9
Less: undistributed earnings reallocated to participating securities		(47	)		(15	)		(36	)		(9	)
Numerator for diluted earnings per share under two class method	$	26,827		$	19,960		$	36,361		$	28,361
Denominator
Weighted-average common shares outstanding		48,851,350			48,768,021			48,839,660			48,741,476
Add: dilutive effect of stock options		10,392			237,016			9,254			212,583
Denominator for diluted earnings per share under two class method		48,861,742			49,005,037			48,848,914			48,954,059
Basic Earnings Per Common Share	$	0.55		$	0.41		$	0.74		$	0.58
Diluted Earnings Per Common Share	$	0.55		$	0.41		$	0.74		$	0.58