Note 6 - Earnings per Common Share (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

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

(In thousands, except per share amounts)	2020		2019		2018
Numerator:
Net income	$	69,500	$	61,071	$	55,027
Denominator:
Basic earnings per common share - weighted-average shares		82,527		81,945		81,885
Effect of dilutive stock options		637		725		839
Diluted earnings per common share - weighted-average shares and assumed conversions		83,164		82,670		82,724
Basic earnings per common share	$	0.84	$	0.75	$	0.67
Diluted earnings per common share	$	0.84	$	0.74	$	0.67