Long-term Debt (Long-term Debt Outstanding by Maturity Date) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Long-term debt outstanding	$ 12,352	$ 13,581
Maturing in 2017 [Member]
Debt Instrument [Line Items]
Long-term debt outstanding		$ 1,016
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	3.03%	3.03%
Maturing In 2019 [Member]
Debt Instrument [Line Items]
Long-term debt outstanding	$ 10,000	$ 10,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.87%	1.87%
Maturing in 2026 [Member]
Debt Instrument [Line Items]
Long-term debt outstanding	$ 2,295	$ 2,504
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	4.80%	4.80%
Maturing in 2027 [Member]
Debt Instrument [Line Items]
Long-term debt outstanding	$ 57	$ 61
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	6.71%	6.71%