Premises and Equipment (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Premises and Equipment [Abstract]
Depreciation Expense	$ 1,898	$ 1,693
Operating Leases, Future Minimum Payments Due, Next Twelve Months	3,400
Operating Leases, Future Minimum Payments, Due in Two Years	3,100
Operating Leases, Future Minimum Payments, Due in Three Years	3,100
Operating Leases, Future Minimum Payments, Due in Four Years	3,000
Operating Leases, Future Minimum Payments, Due in Five Years	3,000
Operating Leases, Future Minimum Payments, Due Thereafter	6,000
Operating Leases, Rent Expense, Net	$ 500	$ 500