Derivative Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Derivative Instruments
Collateral held by third parties	$ 900	$ 0
Not designated as hedging
Derivative Instruments
Fair Value, Derivative Assets	1,621	12
Fair Value, Derivative Liabilities	109	7
Notional Amount, Derivative Assets	58,499	33,858
Notional Amount, Derivative Liabilities	68,500	2,956
Not designated as hedging | Interest rate lock commitments | Other assets
Derivative Instruments
Fair Value, Derivative Assets	1,228	12
Notional Amount, Derivative Assets	45,715	33,858
Not designated as hedging | Forward loan sales commitments | Other assets
Derivative Instruments
Fair Value, Derivative Assets	393
Notional Amount, Derivative Assets	12,784
Not designated as hedging | Forward loan sales commitments | Accrued expenses and other liabilities
Derivative Instruments
Fair Value, Derivative Liabilities		7
Notional Amount, Derivative Liabilities		$ 2,956
Not designated as hedging | TBA mortgage backed securities | Accrued expenses and other liabilities
Derivative Instruments
Fair Value, Derivative Liabilities	109
Notional Amount, Derivative Liabilities	$ 68,500