Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions - Fair Value of Derivatives (Details)
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1 Months Ended |
12 Months Ended |
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Dec. 31, 2019
USD ($)
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Dec. 31, 2021
USD ($)
item
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Dec. 31, 2020
USD ($)
item
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| Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions |
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| Loan pool hedge |
$ 50,000,000
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| Term of interest rate risk cash flow hedge |
5 years
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| Amount of ineffectiveness, included in net income |
|
$ 0
|
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| Interest Rate Swap [Member] |
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| Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions |
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| Notional Amount |
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25,800,000
|
$ 25,800,000
|
| Designated as Hedging Instrument [Member] |
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| Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions |
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| Derivative assets designated as hedging instruments, fair value |
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808,000
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2,697,000
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| Derivative liabilities designated as hedging instruments, fair value |
|
$ 4,102,000
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$ 6,380,000
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| Designated as Hedging Instrument [Member] | Interest Rate Products | OSBC Affiliates |
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| Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions |
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| Derivative, number of transactions | item |
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2
|
2
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| Notional Amount |
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$ 75,774,000
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$ 75,774,000
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| Derivative assets designated as hedging instruments, fair value |
|
808,000
|
2,697,000
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| Derivative liabilities designated as hedging instruments, fair value |
|
4,102,000
|
6,380,000
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| Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |
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| Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions |
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| Cash collateral pledged with financial institutions, dollars |
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17,200,000
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| Not Designated as Hedging Instrument [Member] |
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| Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions |
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|
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| Derivative assets designated as hedging instruments, fair value |
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3,194,000
|
7,531,000
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| Derivative liabilities designated as hedging instruments, fair value |
|
$ 2,707,000
|
$ 6,779,000
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| Not Designated as Hedging Instrument [Member] | Interest Rate Products | Commercial Loan Customers |
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| Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions |
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| Derivative, number of transactions | item |
|
26
|
28
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| Notional Amount |
|
$ 165,005,000
|
$ 189,126,000
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| Derivative assets designated as hedging instruments, fair value |
|
2,686,000
|
6,691,000
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| Derivative liabilities designated as hedging instruments, fair value |
|
$ 2,686,000
|
$ 6,691,000
|
| Weighted average maturity |
|
3 years 10 months 24 days
|
4 years 8 months 12 days
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| Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |
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| Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions |
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| Notional Amount |
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$ 189,100,000
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| Cash collateral pledged with financial institutions, dollars |
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$ 17,200,000
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| Investment securities pledged with financial institutions, dollars |
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$ 0
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$ 0
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| Number of correspondent financial institutions where investment securities are pledged |
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1
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1
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| Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Cash Flow Hedging |
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| Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions |
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| Cash collateral pledged with financial institutions, dollars |
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$ 180,000
|
$ 1,400,000
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| Not Designated as Hedging Instrument [Member] | Interest Rate Lock Commitments and Forward Contracts. |
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| Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions |
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| Derivative, number of transactions | item |
|
87
|
205
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| Notional Amount |
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$ 34,414,000
|
$ 84,472,000
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| Derivative assets designated as hedging instruments, fair value |
|
$ 508,000
|
$ 840,000
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| Not Designated as Hedging Instrument [Member] | Other Contracts |
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| Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions |
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| Derivative, number of transactions | item |
|
3
|
4
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| Notional Amount |
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$ 17,173,000
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$ 26,523,000
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| Derivative liabilities designated as hedging instruments, fair value |
|
21,000
|
88,000
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| Not Designated as Hedging Instrument [Member] | Forward Contracts [Member] |
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| Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions |
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| Notional Amount |
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20,000,000
|
46,500,000
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| Interest Income [Member] |
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| Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions |
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| Amount to be reclassified as a reduction to interest expense during the next twelve months |
|
190,000
|
$ 190,000
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| Interest Expense [Member] |
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| Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions |
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| Amount to be reclassified as a reduction to interest expense during the next twelve months |
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$ 174,000
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