Acquisitions (Narrative) (Details) - USD ($) $ in Thousands			9 Months Ended
	May 01, 2020	Apr. 30, 2020	Sep. 30, 2020
Business Acquisition [Line Items]
Paid in cash			$ 6,490
Buildings [Member]
Business Acquisition [Line Items]
Estimated useful life			39 years
Improvements And Equipment [Member]
Business Acquisition [Line Items]
Estimated useful life			10 years
Core Deposit Intangibles [Member]
Business Acquisition [Line Items]
Estimated useful life			10 years
FSB [Member]
Business Acquisition [Line Items]
Paid in cash	$ 17,100
Fair value of shares issued		$ 11,700
Goodwill, Acquisition			$ 1,768
Merger-related expenses			6,000
FSB [Member] | Core Deposit Intangibles [Member]
Business Acquisition [Line Items]
Intangible Assets, Acquisition			$ 166
FSB [Member] | Evans Common Stock [Member]
Business Acquisition [Line Items]
Shares issued of common stock	422,475
As Recorded By FSB [Member]
Business Acquisition [Line Items]
Total assets	$ 321,712
Net loans receivable	273,869
Securities	21,371
Total liabilities	293,059
Deposits	237,688
Borrowings	50,597
As Recorded By FSB [Member] | FSB [Member]
Business Acquisition [Line Items]
Total assets	321,700
Net loans receivable	272,100
Securities	21,400
Total liabilities	293,100
Deposits	237,700
Borrowings	50,600
As Recorded At Acquisition [Member]
Business Acquisition [Line Items]
Total assets	323,164
Net loans receivable	271,385
Securities	21,477
Total liabilities	296,076
Deposits	239,173
Borrowings	52,526
As Recorded At Acquisition [Member] | FSB [Member]
Business Acquisition [Line Items]
Goodwill, Acquisition	1,800
As Recorded At Acquisition [Member] | FSB [Member] | Core Deposit Intangibles [Member]
Business Acquisition [Line Items]
Intangible Assets, Acquisition	$ 200