Securities (Amortized Cost and Fair Value of Debt Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule Of Available For Sale Securities [Line Items]
Due in one year or less, Amortized Cost	$ 3,023	$ 2,518
Due from one to five years, Amortized Cost	10,491	11,003
Available-for-sale Securities Total, Amortized Cost	14,006	14,055
Due in one year or less, Fair Value	3,020	2,518
Due from one to five years, Fair Value	10,478	10,987
Available-for-sale Securities Total, Fair Value	14,007	14,058
Mortgage-Backed Securities - Residential [Member]
Schedule Of Available For Sale Securities [Line Items]
No single maturity, Amortized Cost	326	345
No single maturity, Fair Value	337	357
Available-for-sale Securities Total, Fair Value	337	357
Collateralized Mortgage Obligations [Member]
Schedule Of Available For Sale Securities [Line Items]
No single maturity, Amortized Cost	166	189
No single maturity, Fair Value	172	196
Available-for-sale Securities Total, Fair Value	$ 172	$ 196