Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2022		Dec. 31, 2021	Dec. 31, 2020	Sep. 23, 2022
Earnings Per Share [Abstract]
Stock dividend, percent		300.00%	[1]	300.00%	300.00%	300.00%
Net Income		$ 48,799		$ 49,857	$ 40,827
Weighted Average Shares - Basic (in shares)	[2]	16,513		16,499	16,406
Earnings Per Share - Basic (in dollars per share)	[2]	$ 2.95		$ 3.02	$ 2.49
Dilutive Average Shares Attributable to Stock Options (in shares)		49		56	16
Weighted Average Shares - Diluted (in shares)	[2]	16,562		16,555	16,422
Earnings Per Share - Diluted (in dollars per share)	[2]	$ 2.95		$ 3.01	$ 2.49

[1] Included in the shares issued for the 3% stock dividend in 2022 were treasury shares of 142,746

[2] Share and Per Share Amounts have been restated for the September 23, 2022 3% stock dividend.