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 June 30,				Six Months Ended June 30,
	2016		2015		2016		2015
Numerator:
Numerator for basic and diluted earnings per share – Net income available to common shareholders	$	10,817	$	19,576	$	13,212	$	36,357
Denominator:
Denominator for basic earnings per share – weighted average shares outstanding		40,250		40,275		40,402		40,171
Effect of dilutive securities–
Employee and director stock options and restricted share awards		528		797		512		858
Denominator for diluted earnings per share – adjusted weighted average shares outstanding and assumed conversions		40,778		41,072		40,914		41,029
Basic earnings per common share	$	.27	$	.49	$	.33	$	.91
Diluted earnings per common share and common share equivalents	$	.27	$	.48	$	.32	$	.89

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Three Months Ended June 30,				Six Months Ended June 30,
	2016		2015		2016		2015
Options		2,525		1,234		2,522		1,045