Note 2 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

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

	2012		2011		2010
	(In thousands, except per share data)
Net income, as reported	$	34,331	$	35,348	$	38,835
Divided by:
Weighted average common shares outstanding		30,402		30,623		30,336
Weighted average common stock equivalents		31		31		31
Total weighted average common shares outstanding and common stock equivalents		30,433		30,654		30,367
Basic earnings per common share	$	1.13	$	1.15	$	1.28
Diluted earnings per common share	$	1.13	$	1.15	$	1.28