Goodwill And Other Intangible Assets Schedule of Amortization Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of Amortization of Intangibles [Line Items]
Amortization of Intangible Assets	$ 1,410	$ 247	$ 200
Core Deposits
Schedule of Amortization of Intangibles [Line Items]
Amortization of Intangible Assets	1,210	47	0
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	1,471
Finite-Lived Intangible Assets, Amortization Expense, Year Two	1,368
Finite-Lived Intangible Assets, Amortization Expense, Year Three	1,265
Finite-Lived Intangible Assets, Amortization Expense, Year Four	1,162
Finite-Lived Intangible Assets, Amortization Expense, Year Five	1,060
Customer-Related Intangible Assets [Member]
Schedule of Amortization of Intangibles [Line Items]
Amortization of Intangible Assets	200	$ 200	$ 200
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	200
Finite-Lived Intangible Assets, Amortization Expense, Year Two	200
Finite-Lived Intangible Assets, Amortization Expense, Year Three	200
Finite-Lived Intangible Assets, Amortization Expense, Year Four	200
Finite-Lived Intangible Assets, Amortization Expense, Year Five	$ 100