Borrowings - Schedule of Available Unused Lines of Credit (Details) - Unused lines of Credit [Member] - USD ($)	9 Months Ended
Sep. 30, 2021	Dec. 31, 2020
Correspondent Banks [Member]
Short Term Debt [Line Items]
Collateral Requirements	None
Available lines of credit	$ 44,800	$ 44,800
Federal Reserve (Discount Window) [Member]
Short Term Debt [Line Items]
Collateral Requirements	Subject to collateral
Available lines of credit	$ 1,100	1,600
FHLB Advances [Member]
Short Term Debt [Line Items]
Collateral Requirements	Subject to collateral
Available lines of credit	$ 234,000.0	$ 225,800

Amount of advances or credit lines available from the Federal Home Loan Bank (FHLB).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22 (b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13(3)(a))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822

Name:	us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresAmountOfAvailableUnusedFunds
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant