Earnings Per Share (Calculation of Basic and Diluted Earnings Per Share - Prior Period) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Basic:
Net Income attributable to common shareholders	$ 4,110	$ 3,467
Weighted average common shares outstanding (in shares)	7,637,000	7,751,750
Basic earnings per share (in dollars per share)	$ 0.53	$ 0.45
Diluted:
Net Income attributable to common shareholders	$ 4,110	$ 3,467
Weighted average common shares outstanding (in shares)	7,637,000	7,751,750
Add: Dilutive effects of assumed exercises of stock options (in shares)		117,431
Weighted average common shares outstanding—diluted (in shares)	7,738,000	7,869,181
Diluted earnings per common share (in dollars per share)	$ 0.53	$ 0.44