Note 4 - Earnings Per Common Share - Basic and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net Income	$ 54,255	$ 52,136	$ 29,994
Preferred Stock Dividends	1,350	0	0
Net Income Available to Common Shareholders	$ 52,905	$ 52,136	$ 29,994
Weighted Average Common Shares Outstanding (in shares)	22,633,478	20,502,249	18,169,599
Dilutive Effect of Stock Options and Restricted Stock Awards (in shares)	184,015	132,032	73,846
Weighted Average Dilutive Common Shares (in shares)	22,817,493	20,634,281	18,243,445
Basic Earnings Per Common Share From Net Income Available to Common Shares (in dollars per share)	$ 2.34	$ 2.54	$ 1.65
Diluted Earnings Per Common Share From Net Income Available to Common Shares (in dollars per share)	$ 2.32	$ 2.53	$ 1.64