Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) - USD ($)	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020
Statement Of Cash Flows [Abstract]
Loans transferred to held for sale	$ 0	$ 2,331,000
Non cash financing activity in early withdrawal penalties	$ 120,000	$ 168,000

Value of loans held-for-sale transferred to loans held in the entity's portfolio in noncash transactions.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4313-108586

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