Note 15 - Earnings Per Common Share (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

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

	Year Ended December 31,
	2021				2020					2019
			Per Share				Per Share					Per Share
	Shares		Amount		Shares		Amount			Shares		Amount
Basic earnings per share		10,873,817	$	4.00		10,981,623	$	2.74			10,531,572	$	1.99
Effect of dilutive securities - stock options		3,414		—		4,167		(0.01	)		9,765		(0.01	)
Diluted earnings per share		10,877,231	$	4.00		10,985,790	$	2.73			10,541,337	$	1.98