Outstanding Shares and Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Jan. 23, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Basic earnings per share [Abstract]
Net income		$ 14,721	$ 12,551	$ 8,748
Weighted average common shares outstanding (in shares)		12,772,528	12,732,726	12,698,948
Basic earnings per share (in dollars per share)		$ 1.15	$ 0.99	$ 0.69
Diluted earnings per share [Abstract]
Net income		$ 14,721	$ 12,551	$ 8,748
Weighted average common shares outstanding (in shares)		12,772,528	12,732,726	12,698,948
Effect of dilutive shares (in shares)		157,122	176,289	161,211
Adjusted weighted average common shares outstanding (in shares)		12,929,650	12,909,015	12,860,159
Diluted earnings per share (in dollars per share)		$ 1.14	$ 0.97	$ 0.68
Subsequent Event [Member]
Dividends [Abstract]
Stock dividend percentage	5.00%
Dividends date declared	Jan. 23, 2020
Dividend date to be paid	Mar. 25, 2020
Dividends payable, date of record	Feb. 28, 2020
Subsequent Event [Member] | Dividend Declared in 2020 Annual [Member]
Dividends [Abstract]
Stock dividend percentage	5.00%
Dividends date declared	Jan. 23, 2020
Dividend date to be paid	Mar. 25, 2020
Dividends payable, date of record	Feb. 28, 2020
Stock Options [Member]
Antidilutive Securities [Abstract]
Antidilutive securities excluded from EPS computation (in shares)		226,186	90,580	73,893