Summary of Significant Accounting Policies (Details)	12 Months Ended
Dec. 31, 2020 USD ($) loan	Dec. 31, 2019 USD ($)
Accounting Policies [Line Items]
Federal Reserve Bank, reserve requirement	$ 0	$ 49,200,000
Other real estate owned	4,619,000	1,757,000
Mortgage loans in process of foreclosure	26,000	215,000
Residential Real Estate [Member]
Accounting Policies [Line Items]
Other real estate owned	26,000	$ 215,000
Mortgage loans in process of foreclosure	$ 384,000
Mortgage loans in process of foreclosure number of loans	5	0
Minimum
Accounting Policies [Line Items]
Intangible asset, useful life	5 years
Maximum
Accounting Policies [Line Items]
Intangible asset, useful life	12 years

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Amount of cash or deposit reserve required to be maintained with federal reserve bank.

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Mortgage loans in process of foreclosure number of loans.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Carrying amount as of the balance sheet date of all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings or defeasance; includes real and personal property; equity interests in corporations, partnerships, and joint ventures; and beneficial interests in trusts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5162-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4437-111522

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Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL49126937-111524

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