Loans (Schedule of the Activity Regarding TDRs by Loan Type) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)
Troubled Debt Restructurings [Roll Forward]
Troubled debt restructurings, beginning balance	$ 30,525
Additions	698
Charge-offs	(181)
Net (paydowns) advances	(2,412)
Transfer into OREO	0
Refinance out of TDR status	0
Troubled debt restructurings, ending balance	28,630
Allowance related to troubled debt restructurings	1,349
Land And Land Improvements [Member]
Troubled Debt Restructurings [Roll Forward]
Troubled debt restructurings, beginning balance	4,189
Additions	0
Charge-offs	0
Net (paydowns) advances	(323)
Transfer into OREO	0
Refinance out of TDR status	0
Troubled debt restructurings, ending balance	3,866
Allowance related to troubled debt restructurings	530
Construction [Member]
Troubled Debt Restructurings [Roll Forward]
Troubled debt restructurings, beginning balance	0
Additions	0
Charge-offs	0
Net (paydowns) advances	0
Transfer into OREO	0
Refinance out of TDR status	0
Troubled debt restructurings, ending balance	0
Allowance related to troubled debt restructurings	0
Commercial Loan [Member]
Troubled Debt Restructurings [Roll Forward]
Troubled debt restructurings, beginning balance	242
Additions	0
Charge-offs	0
Net (paydowns) advances	(59)
Transfer into OREO	0
Refinance out of TDR status	0
Troubled debt restructurings, ending balance	183
Allowance related to troubled debt restructurings	0
Owner Occupied [Member]
Troubled Debt Restructurings [Roll Forward]
Troubled debt restructurings, beginning balance	9,314
Additions	0
Charge-offs	(129)
Net (paydowns) advances	(491)
Transfer into OREO	0
Refinance out of TDR status	0
Troubled debt restructurings, ending balance	8,694
Allowance related to troubled debt restructurings	544
Non Owner Occupied [Member]
Troubled Debt Restructurings [Roll Forward]
Troubled debt restructurings, beginning balance	6,059
Additions	0
Charge-offs	0
Net (paydowns) advances	(656)
Transfer into OREO	0
Refinance out of TDR status	0
Troubled debt restructurings, ending balance	5,403
Allowance related to troubled debt restructurings	0
Non Jumbo [Member]
Troubled Debt Restructurings [Roll Forward]
Troubled debt restructurings, beginning balance	5,496
Additions	696
Charge-offs	(52)
Net (paydowns) advances	(717)
Transfer into OREO	0
Refinance out of TDR status	0
Troubled debt restructurings, ending balance	5,423
Allowance related to troubled debt restructurings	251
Jumbo [Member]
Troubled Debt Restructurings [Roll Forward]
Troubled debt restructurings, beginning balance	4,635
Additions	0
Charge-offs	0
Net (paydowns) advances	(141)
Transfer into OREO	0
Refinance out of TDR status	0
Troubled debt restructurings, ending balance	4,494
Allowance related to troubled debt restructurings	24
Home Equity Line of Credit [Member]
Troubled Debt Restructurings [Roll Forward]
Troubled debt restructurings, beginning balance	523
Additions	0
Charge-offs	0
Net (paydowns) advances	0
Transfer into OREO	0
Refinance out of TDR status	0
Troubled debt restructurings, ending balance	523
Allowance related to troubled debt restructurings	0
Mortgage Warehouse Lines [Member]
Troubled Debt Restructurings [Roll Forward]
Troubled debt restructurings, beginning balance	0
Additions	0
Charge-offs	0
Net (paydowns) advances	0
Transfer into OREO	0
Refinance out of TDR status	0
Troubled debt restructurings, ending balance	0
Allowance related to troubled debt restructurings	0
Consumer Portfolio Segment [Member]
Troubled Debt Restructurings [Roll Forward]
Troubled debt restructurings, beginning balance	67
Additions	2
Charge-offs	0
Net (paydowns) advances	(25)
Transfer into OREO	0
Refinance out of TDR status	0
Troubled debt restructurings, ending balance	44
Allowance related to troubled debt restructurings	0
Other Loans [Member]
Troubled Debt Restructurings [Roll Forward]
Troubled debt restructurings, beginning balance	0
Additions	0
Charge-offs	0
Net (paydowns) advances	0
Transfer into OREO	0
Refinance out of TDR status	0
Troubled debt restructurings, ending balance	0
Allowance related to troubled debt restructurings	$ 0