Note 2 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

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

	2013		2012		2011
	(In thousands, except per share data)
Net income, as reported	$	37,752	$	34,331	$	35,348
Divided by:
Weighted average common shares outstanding		30,047		30,402		30,623
Weighted average common stock equivalents		26		31		31
Total weighted average common shares outstanding and common stock equivalents		30,073		30,433		30,654
Basic earnings per common share	$	1.26	$	1.13	$	1.15
Diluted earnings per common share	$	1.26	$	1.13	$	1.15