Loans Loans (Schedule of Acquired Loans) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Total Outstanding Balance	$ 174,503	$ 142,442
Acquired Loans Carrying Value	171,328	140,198
Commercial Portfolio Segment [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Carrying Value	4,474	3,934
Owner Occupied [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Carrying Value	20,346	16,133
Non-Owner Occupied [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Carrying Value	26,239	24,593
Land and Land Improvements [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Carrying Value	4,865	5,161
Construction Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Carrying Value	0	0
Non-Jumbo [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Carrying Value	101,195	79,268
Jumbo [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Carrying Value	4,151	3,552
Home Equity [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Carrying Value	2,497	2,805
Consumer Portfolio Segment [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Carrying Value	7,445	4,630
Other Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Carrying Value	116	122
Purchased Impaired Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	4,240	4,275
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	3,468	3,511
Purchased Impaired Loans [Member] | Commercial Portfolio Segment [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	0	0
Purchased Impaired Loans [Member] | Owner Occupied [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	0	0
Purchased Impaired Loans [Member] | Non-Owner Occupied [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	1,186	1,162
Purchased Impaired Loans [Member] | Land and Land Improvements [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	0	0
Purchased Impaired Loans [Member] | Construction Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	0	0
Purchased Impaired Loans [Member] | Non-Jumbo [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	1,319	1,374
Purchased Impaired Loans [Member] | Jumbo [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	963	975
Purchased Impaired Loans [Member] | Home Equity [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	0	0
Purchased Impaired Loans [Member] | Consumer Portfolio Segment [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	0	0
Purchased Impaired Loans [Member] | Other Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	0	0
Purchase Nonimpaired Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Purchase Performing Outstanding Balance	170,263	138,167
Acquired Loans Purchased Performing Carrying Value	167,860	136,687
Purchase Nonimpaired Loans [Member] | Commercial Portfolio Segment [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Purchased Performing Carrying Value	4,474	3,934
Purchase Nonimpaired Loans [Member] | Owner Occupied [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Purchased Performing Carrying Value	20,346	16,133
Purchase Nonimpaired Loans [Member] | Non-Owner Occupied [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Purchased Performing Carrying Value	25,053	23,431
Purchase Nonimpaired Loans [Member] | Land and Land Improvements [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Purchased Performing Carrying Value	4,865	5,161
Purchase Nonimpaired Loans [Member] | Construction Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Purchased Performing Carrying Value	0	0
Purchase Nonimpaired Loans [Member] | Non-Jumbo [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Purchased Performing Carrying Value	99,876	77,894
Purchase Nonimpaired Loans [Member] | Jumbo [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Purchased Performing Carrying Value	3,188	2,577
Purchase Nonimpaired Loans [Member] | Home Equity [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Purchased Performing Carrying Value	2,497	2,805
Purchase Nonimpaired Loans [Member] | Consumer Portfolio Segment [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Purchased Performing Carrying Value	7,445	4,630
Purchase Nonimpaired Loans [Member] | Other Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Acquired Loans Purchased Performing Carrying Value	$ 116	$ 122