Earnings per Share - Reconciliation of Components Used to Compute Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Numerator:
Net income	$ 9,014	$ 7,105
Denominator:
Basic weighted average common shares outstanding (in shares)	9,845,021	10,331,902
Dilutive restricted stock grants (in shares)	78,089	102,535
Diluted weighted average common shares outstanding (in shares)	9,923,110	10,434,437
Basic earnings (in dollars per share)	$ 0.92	$ 0.69
Diluted earnings (in dollars per share)	$ 0.91	$ 0.68