Note 6 - Earnings Per Common Share (Tables)

12 Months Ended

Dec. 31, 2012

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

(In thousands, except per share amounts)	2012		2011		2010
Numerator:
Net income	$	27,267	$	24,285	$	19,742
Denominator:
Basic earnings per common share - weighted-average shares		22,064		21,979		21,927
Effect of dilutive stock options		86		96		104
Diluted earnings per common share - weighted-average shares and assumed conversions		22,150		22,075		22,031
Basic earnings per common share	$	1.24	$	1.10	$	0.90
Diluted earnings per common share	$	1.23	$	1.10	$	0.90