Derivative Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Interest Rate Lock Commitments [Member]
Derivative [Line Items]
Derivative Asset, Notional Amount	$ 10,540	$ 874
Derivative Asset, Fair Value, Gross Asset	84	10
Derivative Liability, Notional Amount	0	0
Derivative Liability, Fair Value, Gross Liability	0	0
Notional amount	10,500	874
Interest Rate Swap
Derivative [Line Items]
Cash held as collateral	8,900	8,900
Short [Member] | Forward Contracts [Member]
Derivative [Line Items]
Derivative Asset, Notional Amount	4,532	0
Derivative Asset, Fair Value, Gross Asset	11	0
Derivative Liability, Notional Amount	6,008	874
Derivative Liability, Fair Value, Gross Liability	(16)	3
Notional amount	10,500	874
Other assets | Interest Rate Swap | Not Designated as Hedging Instrument | Correspondent Banks
Derivative [Line Items]
Notional amount	$ 137,890	$ 237,916
Weighted average remaining term (years)	7 years 2 months 12 days	6 years 9 months 18 days
Fixed rate (weighted average)	3.62%	4.36%
Variable rate (weighted average)	3.83%	4.69%
Estimated fair value	$ 739	$ 6,191
Other assets | Interest Rate Swap | Not Designated as Hedging Instrument | Customers
Derivative [Line Items]
Notional amount	$ 282,326	$ 36,972
Weighted average remaining term (years)	6 years 10 months 24 days	6 years 4 months 24 days
Fixed rate (weighted average)	4.48%	5.12%
Variable rate (weighted average)	3.98%	4.56%
Estimated fair value	$ 9,614	$ 868
Other liabilities | Interest Rate Swap | Not Designated as Hedging Instrument | Correspondent Banks
Derivative [Line Items]
Notional amount	$ 282,326	$ 36,972
Weighted average remaining term (years)	6 years 10 months 24 days	6 years 4 months 24 days
Fixed rate (weighted average)	4.48%	5.12%
Variable rate (weighted average)	3.98%	4.56%
Estimated fair value	$ (9,614)	$ (868)
Other liabilities | Interest Rate Swap | Not Designated as Hedging Instrument | Customers
Derivative [Line Items]
Notional amount	$ 137,890	$ 237,916
Weighted average remaining term (years)	7 years 2 months 12 days	6 years 9 months 18 days
Fixed rate (weighted average)	3.62%	4.36%
Variable rate (weighted average)	3.83%	4.69%
Estimated fair value	$ (739)	$ (6,191)