Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Basic:
Net income	$ 7,026	$ 5,439	$ 14,097	$ 12,984
Weighted-average common shares outstanding	14,267,290	14,349,040	14,286,362	14,385,927
Basic earnings per share	$ 0.49	$ 0.38	$ 0.99	$ 0.90
Diluted:
Net Income	$ 7,026	$ 5,439	$ 14,097	$ 12,984
Weighted-average common shares outstanding	14,267,290	14,349,040	14,286,362	14,385,927
Effect of dilutive restricted stock and stock appreciation rights	243,192	196,159	239,906	201,930
Weighted-average common shares outstanding assuming dilution	14,510,482	14,545,199	14,526,268	14,587,857
Diluted earnings per share	$ 0.48	$ 0.37	$ 0.97	$ 0.89