Borrowings - Schedule of Principal on FHLB Borrowings Maturities (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2024	Dec. 31, 2023
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]
Balance	$ 190,000	$ 210,000
Daily Rate Credit [Member]
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]
Balance		$ 60,000
Originated Date		May 08, 2023
Stated Interest Rate		5.57%
Maturity Date		May 08, 2024
Fixed Rate Credit One [Member]
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]
Balance	$ 40,000	$ 50,000
Originated Date	Jul. 29, 2024	Mar. 15, 2023
Stated Interest Rate		4.07%
Maturity Date		Mar. 15, 2027
Fixed Rate Credit One [Member] \| Maximum [Member]
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]
Stated Interest Rate	4.89%
Maturity Date	Jan. 18, 2025
Fixed Rate Credit One [Member] \| Minimum [Member]
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]
Stated Interest Rate	4.75%
Maturity Date	Jul. 29, 2025
Fixed Rate Credit Two [Member]
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]
Balance	$ 50,000	$ 50,000
Originated Date	Mar. 15, 2023	May 02, 2023
Stated Interest Rate	4.07%	3.87%
Maturity Date	Mar. 15, 2027	May 03, 2027
Fixed Rate Credit Three [Member]
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]
Balance	$ 50,000	$ 50,000
Originated Date	May 02, 2023	May 04, 2023
Stated Interest Rate	3.87%	3.52%
Maturity Date	May 03, 2027	May 04, 2028
Fixed Rate Credit Four [Member]
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]
Balance	$ 50,000
Originated Date	May 04, 2023
Stated Interest Rate	3.52%
Maturity Date	May 04, 2028

Federal home loan bank advances branch of fhlb bank maturity date.

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- Definition

Federal home loan bank advances branch of FHLB bank originated date.

+ References

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- Definition

Rate of interest applicable on advance from Federal Home Loan Bank (FHLBank).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 470
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478878/942-470-45-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477734/942-470-50-3

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+ References

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- Definition

Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 470
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478878/942-470-45-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477734/942-470-50-2

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