Earnings per Common Share (Calculation of Earnings per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Earnings Per Share [Abstract]
Net income	$ 10,981	$ 11,161	$ 32,732	$ 35,229
Less dividends and undistributed earnings allocated to participating securities	(8)	(21)	0	(69)
Net income available to common shareholders	$ 10,973	$ 11,140	$ 32,732	$ 35,160
Weighted average common shares outstanding for basic EPS	17,058,000	17,019,000	17,048,000	17,034,000
Dilutive effect of common stock equivalents	82,000	22,000	67,000	29,000
Weighted average common shares outstanding for diluted EPS	17,140,000	17,041,000	17,115,000	17,063,000
Basic EPS	$ 0.64	$ 0.65	$ 1.92	$ 2.06
Diluted EPS	$ 0.64	$ 0.65	$ 1.91	$ 2.06
Antidilutive common stock equivalents	403,995	468,524	450,943	452,472