Interest-Bearing Deposits (Schedule of Maturities of Time Deposits) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Due within:
One year	$ 48,370	$ 48,740
Two years	281	4,752
Three years	2,383	155
Four years	25	2,072
Five years	1,439	65
Total	$ 52,498	$ 55,784
Percent of Total One year	92.10%	87.40%
Percent of Total Two years	0.50%	8.50%
Percent of Total Three years	4.50%	0.30%
Percent of Total Four years	0.10%	3.70%
Percent of Total Five years	2.80%	0.10%
Total	100.00%	100.00%