Derivatives Financial Instruments (Details) $ in Thousands	Dec. 31, 2018 USD ($) position	Dec. 31, 2017 USD ($) position
Interest Rate Swap | Designated as Hedging Instrument
Derivatives and other information
Notional amount	$ 25,000	$ 25,000
Positions | position	3	3
Derivative Asset	$ 289	$ 166
Matched interest rate swaps with borrower | Not designated as hedges
Derivatives and other information
Notional amount	$ 45,961	$ 41,295
Positions | position	8	6
Derivative Asset	$ 216	$ 284
Derivative Liability	1,391	977
Matched interest rate swaps with counterparty | Not designated as hedges
Derivatives and other information
Notional amount	$ 45,961	$ 41,295
Positions | position	8	6
Derivative Asset	$ 1,391	$ 977
Derivative Liability	216	284
Interest rate lock commitments | Not designated as hedges
Derivatives and other information
Notional amount	$ 84,906	$ 99,140
Positions | position	357	440
Derivative Asset	$ 636	$ 528