Net Income Per Common Share (Schedule of Earnings Per Share, Basic and Diluted) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Net Income per Common Share [Abstract]
Basic earnings per share: Income available to common stockholders	$ 7,933	$ 9,676
Diluted earnings per share: Income available to common stockholders	$ 7,933	$ 9,676
Basic earnings per share: Income available to common stockholders, Shares	16,949	16,980
Effect of dilutive securities: Stock options: Shares	259	363
Diluted earnings per share: Income available to common stockholders, Shares	17,208	17,343
Basic earnings per share: Income available to common stockholders, Per share amount	$ 0.47	$ 0.57
Diluted earnings per share: Income available to common stockholders, Per share amount	$ 0.46	$ 0.56