Bank Owned Life Insurance and Annuities (Summary of Changes in Cash Value of BOLI and Annuities) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Balance	$ 16,266	$ 15,938
Earnings	263	289
Premiums on existing policies	39	39
Balance	16,568	16,266
Life Insurance [Member]
Balance	15,741	15,445
Earnings	243	270
Premiums on existing policies	26	26
Balance	16,010	15,741
Deferred Annuities [Member]
Balance	525	493
Earnings	20	19
Premiums on existing policies	13	13
Balance	$ 558	$ 525

Amount of cash outflow for payment of premium on corporate-owned life insurance policy, classified as investing activities. Includes, but is not limited to, bank-owned life insurance policy.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 21C
-URI http://asc.fasb.org/extlink&oid=121586364&loc=SL94080552-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585

Name:	us-gaap_PaymentsToAcquireLifeInsurancePolicies
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration