Note 12 - Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

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

	2016		2015		2014
Numerator-
Numerator for basic and diluted earnings per share -
Net income available to common shareholders	$	40,582	$	66,053	$	79,957
Denominator-
Denominator for basic earnings per share – weighted average shares		39,938		40,271		39,783
Effect of dilutive securities-
Employee and director stock options and restricted share awards		665		822		1,111
Denominator for diluted earnings per share - adjusted weighted average shares and assumed conversions		40,603		41,093		40,894
Basic earnings per common share	$	1.02	$	1.64	$	2.01
Diluted earnings per common share and common share equivalents	$	1.00	$	1.61	$	1.96

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

	2016		2015		2014
Anti-dilutive options – weighted average		2,043		1,186		482