Commitments and Contingent Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Commitments to Extend Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commercial real estate	$ 102,015	$ 73,268
Commercial operating	298,657	223,960
Home equity	43,026	38,318
Other	110,226	69,333
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Asset	$ 553,924	404,879
Number of expected days to fund commitments	ninety days
Financial Standby Letter of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Asset	$ 10,183	$ 10,626
Period when letters of credit expire	one year or less