Other Borrowings (Short Term Borrowings) (Details) - FHLB Open Repo [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Ending balance		$ 24,270
Range of interest rates paid at year end		0.74%
Maximum month-end balance during the year	$ 13,000	$ 24,270
Average balance during the year	$ 1,894	$ 5,258
Weighted average interest rate during the year	0.83%	0.63%
Weighted Average [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Range of interest rates paid at year end		0.74%