Commitments and Contingencies (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) branches	Dec. 31, 2018 USD ($) branches
Commitments and Contingencies Disclosure [Abstract]
Standby letters of credit, required to perform on financial guarantees	$ 0	$ 0
Standby letters of credit that expire within one year	94,200
Standby letters of credit that expire thereafter	12,100
Standby letters of credit fees	1,500	$ 787
Residential mortgage loan repurchase reserve liability	$ 1,600
Days past due of GNMA loans available for repurchase	90 days
Number Of Stores Consolidated | branches	23	31
Number of Stores Sold | branches	4
GNMA | Mortgage, net | Financing Receivables, Equal to Greater than 90 Days Past Due | Residential
Financing Receivable, Past Due [Line Items]
GNMA Loans past due by 90 days, but not yet repurchased	$ 4,300	$ 8,900
Real Estate Loans as Part of Loan portfolio [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	76.00%	75.00%