Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Basic and Diluted Earnings Per Share [Abstract]
Net earnings	$ 2,264	$ 1,995	$ 4,459	$ 3,885
Basic and diluted weighted average shares outstanding	3,643,731	3,643,593	3,643,707	3,643,567
Basic and diluted earnings per share	$ 0.62	$ 0.55	$ 1.22	$ 1.07