Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020	Sep. 25, 2020
Earnings Per Share [Abstract]
Stock dividend, percent				3.00%
Net Income		$ 13,280	$ 8,127
Weighted Average Shares - Basic (in shares)	[1]	15,528	15,446
Earnings Per Share - Basic (in dollars per share)		$ 0.86	$ 0.53
Dilutive Average Shares Attributable to Stock Options (in shares)		35	30
Weighted Average Shares - Diluted (in shares)	[1]	15,563	15,476
Earnings Per Share - Diluted (in dollars per share)		$ 0.85	$ 0.53

[1] 2020 Share and Per Share Amounts have been restated for the September 25, 2020 3% stock dividend.