Note 2 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

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

	2016			2015			2014
	(In thousands, except per share data)
Net income, as reported	$	64,916		$	46,209		$	44,239
Divided by:
Weighted average common shares outstanding		28,957			29,106			29,788
Weighted average common stock equivalents		13			20			29
Total weighted average common shares outstanding and common stock equivalents		28,970			29,126			29,817
Basic earnings per common share	$	2.24		$	1.59		$	1.49
Diluted earnings per common share	$	2.24		$	1.59		$	1.48
Dividend Payout ratio		30.4	%		40.3	%		40.3	%