Fair Value (Details 2) - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Impaired Loans
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Fair Value	$ 140	$ 3,882
Unobservable Inputs	Discount rate for age of appraisal and market conditions	Discount rate for age of appraisal and market conditions
Other Real Estate
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Fair Value	$ 520	$ 1,880
Unobservable Inputs	Discount rate for age of appraisal and market conditions	Discount rate for age of appraisal and market conditions
State and Municipal Obligations
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Fair Value	$ 3,135	$ 3,680
Unobservable Inputs	Discount rate Probability of default	Discount rate Probability of default