Earnings per Common Share (Calculation of Earnings per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Net income	$ 10,936	$ 12,812
Less dividends and undistributed earnings allocated to participating securities	(12)	(29)
Net income available to common shareholders	$ 10,924	$ 12,783
Weighted average common shares outstanding for basic EPS	17,033,000	17,074,000
Dilutive effect of common stock equivalents	41,000	96,000
Weighted average common shares outstanding for diluted EPS	17,074,000	17,170,000
Basic EPS	$ 0.64	$ 0.75
Diluted EPS	$ 0.64	$ 0.74
Antidilutive common stock equivalents	464,011	303,982