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v3.23.2

Derivatives and Hedging Activities - Additional Information (Detail) |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Jan. 17, 2023 USD ($) | Jun. 30, 2023 USD ($) Derivative | Jun. 30, 2022 USD ($) | Jun. 30, 2023 USD ($) Derivative | Jun. 30, 2022 USD ($) | Dec. 31, 2022 USD ($)
Derivatives Fair Value [Line Items] |  |  |  |  |  |
Interest rate swaps |  |  |  | $ (961,000) | $ 544,000 |
Cash collateral from counterparties |  | $ 0 |  | 0 |  | $ 535,000
Cash in collateral returned |  | 6,643,000 |  | 6,643,000 |  | 8,250,000
Cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged assets/(liabilities) |  | (278,000) |  | (278,000) |  |
Derivatives liability |  | 0 |  | 0 |  | 0
Interest Rate Swap 2021 [Member] |  |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |  |
Gain on derivative | $ 849,000 |  |  |  |  |
Cash in collateral returned | $ 536,000 |  |  |  |  |
Balance Sheet Hedges on 90-day Advances from FHLB [Member] |  |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |  |
Liabilities |  | 10,000,000 |  | 10,000,000 |  |
Interest Rate Swap Contracts and Customer Loan Swaps [Member] |  |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |  |
Cash collateral from counterparties |  | 778,000 |  | 778,000 |  | 535,000
Designated as Hedging Instrument [Member] |  |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |  |
Designated hedged items |  | 25,000,000 |  | 25,000,000 |  |
Derivative assets, notional amount |  | 25,000,000 |  | 25,000,000 |  |
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |  |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |  |
Notional amount |  |  |  |  |  | 10,000,000
Interest rate swaps |  | $ 0 | $ 108,000 | $ (112,000) | $ 545,000 |
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Other Assets [Member] |  |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |  |
Interest rate swap derivative asset |  |  |  |  |  | 961,000
Designated as Hedging Instrument [Member] | Interest Rate Swap 2021 [Member] |  |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |  |
Notional amount |  |  |  |  |  | 5,000,000
Cash Flow Hedges on 90-day Advances from FHLB [Member] |  |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |  |
Liabilities |  |  |  |  |  | 10,000,000
Cash Flow Hedges on 90-day Advances from FHLB [Member] | Interest Rate Swap [Member] |  |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |  |
Number of notional interest rate swaps | Derivative |  | 2 |  | 2 |  |
Cash Flow Hedges on 90-day Advances from FHLB [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap 2021 [Member] |  |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |  |
Notional amount |  | $ 5,000,000 |  | $ 5,000,000 |  |
Fair Value Hedging [Member] |  |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |  |
Fair Value Hedges |  |  |  |  |  | $ 0
Remaining maturity |  | 2 years 11 months 1 day |  | 2 years 11 months 1 day |  |
Average fixed interest rate |  | 3.99% |  | 3.99% |  |
Fixed annual rate |  | 5.06% |  | 5.06% |  |
Fair Value Hedging [Member] | Fixed Rate Assets [Member] |  |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |  |
Amortized cost basis of the closed portfolios used in hedging relationships |  | $ 63,700,000 |  | $ 63,700,000 |  |
Cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged assets/(liabilities) |  | $ (278,000) |  | $ (278,000) |  |

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