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Debt Securities Held-to-Maturity - Additional Information (Details)	12 Months Ended
	Dec. 31, 2021 USD ($) security	Dec. 31, 2020 USD ($) security	Dec. 31, 2019 USD ($)
Schedule of Investments [Abstract]
Held-to-maturity securities sold	$ 0	$ 0	$ 0
Held-to-maturity securities pledged to secure borrowings and deposits	$ 2,100,000	$ 5,900,000
Held-to-maturity securities unrealized loss position | security	0	0
Accrued interest receivable associated with held-to-maturity securities	$ 16,000

X

- Definition

Debt Securities, Held To Maturity, Unrealized Loss Position, Number of Positions

+ References

No definition available.

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X

- Definition

Held-to-maturity Securities Pledged as Collateral on Borrowings and Deposits

+ References

No definition available.

+ Details

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X

- Definition

Amount, after allowance for credit loss, of accrued interest on investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5C
-URI http://asc.fasb.org/extlink&oid=123581744&loc=SL121698325-111563

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=124255206&loc=SL120267845-210446

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 3A
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL120267960-210447

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- Definition

Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity), sold.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27405-111563

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