Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 24, 2021
Earnings Per Share [Abstract]
Stock dividend, percent		300.00%	300.00%	300.00%	300.00%	3.00%
Net Income		$ 12,989	$ 11,046	$ 39,548	$ 28,332
Weighted Average Shares - Basic (in shares)	[1]	16,027	15,936	16,015	15,917
Earnings Per Share - Basic (in dollars per share)		$ 0.81	$ 0.69	$ 2.47	$ 1.78
Dilutive Average Shares Attributable to Stock Options (in shares)		58	10	57	14
Weighted Average Shares - Diluted (in shares)	[1]	16,085	15,946	16,072	15,931
Earnings Per Share - Diluted (in dollars per share)		$ 0.81	$ 0.69	$ 2.46	$ 1.78

[1] 2020 Share and Per Share Amounts have been restated for the September 24, 2021 3% stock dividend.