Loans and Allowance for Credit Losses on Loans - Troubled Debt Restructurings (Details) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Loans and Allowance for Credit Losses on Loans
Recorded investment of troubled debt restructurings	$ 177,000	$ 500,000
Troubled debt restructurings, nonaccrual loans		372,000
Troubled debt restructurings, accruing loans		128,000
Specific reserves	$ 0	$ 290,000

Amount of financing receivable modified as troubled debt restructuring.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554

Name:	us-gaap_FinancingReceivableModificationsRecordedInvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant