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Loans (Details Textual) |  | 12 Months Ended
--- | --- | ---
Nov. 01, 2021 USD ($) | Dec. 31, 2021 USD ($) Customer | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Financing Receivable Modifications [Line Items] |  |  |  |
Total troubled debt restructurings |  | $ 3,900,000 | $ 4,100,000 |
Commitments to lend additional amounts to borrowers classified as troubled debt restructurings |  | 0 | 0 |
Allowance adjustment charge offs |  | 127,000 | 65,000 | $ 126,000
Increase in the allowance for loan losses as a result of the allowance |  | 129,000 | 65,000 | $ 126,000
Maximum commercial loan and commercial real estate relationships |  | 1,000,000 |  |
Unfunded commitments |  | 607,000 |  |
Anticipated credit losses |  | 533,000 |  |
Payments to Acquire Loans Receivable |  | 478,164,000 |  |
Loans held for sale |  | 4,000,000.0 |  |
Purchase credit impairment of loans |  |  | 917,000 |
PCD Loans |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Business combination acquired loans with fair value | $ 34,300,000 |  |  |
Credit discount | 1,300,000 |  |  |
Noncredit discount | $ 1,100,000 |  |  |
Small Business Administration (SBA), CARES Act, Paycheck Protection Program |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Total troubled debt restructurings |  | $ 256,400,000 |  |
Number of business customers facilitated assistance | Customer |  | 2,134 |  |
Payments received from forgiveness of loans |  | $ 107,900,000 |  |
Small Business Administration (SBA), CARES Act, Paycheck Protection Program | PPP Loan Originated In 2020 |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Payments received from forgiveness of loans |  | $ 254,000,000 |  |
Percentage of payments received from forgiveness of loans |  | 99.10% |  |
Small Business Administration (SBA), CARES Act, Paycheck Protection Program | PPP Loan Originated In 2021 |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Payments received from forgiveness of loans |  | $ 72,300,000 |  |
Percentage of payments received from forgiveness of loans |  | 67.10% |  |
Payment Deferral |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Number of months offered, deferrals |  | 3 months |  |
Minimum | Payment Deferral |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Number of months offered, deferrals |  | 3 months |  |
Maximum [Member] | Payment Deferral |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Number of months offered, deferrals |  | 12 months |  |
Troubled debt restructurings |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Specific reserves to customers |  | $ 109,000 | $ 81,000 |
Contractual Interest Rate Reduction | Minimum |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Reduction of the notes stated interest rate |  | 0.24% |  |
Contractual Interest Rate Reduction | Maximum [Member] |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Reduction of the notes stated interest rate |  | 4.075% |  |
Extended Maturity | Minimum |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Maturity period loans |  | 22 days |  |
Extended Maturity | Maximum [Member] |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |
Maturity period loans |  | 361 months |  |

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