Allowance for loan losses period increase decrease.

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Anticipated credit losses.

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Business combination acquired loans with fair value.

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Business combination credit discount.

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Business combination noncredit discount.

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Commercial loan and commercial real estate risk maximum.

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Debt instrument interest rate reduction percentage.

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Debt instrument maturity date length of extension period.

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Number of business customers.

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Number of months offered for deferral payments.

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Payments received from forgiveness of loans.

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Pending approval of forgiveness of loans.

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Percentage of payments received from forgiveness of loans.

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Unfunded commitments.

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The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of financing receivable modified as troubled debt restructuring.

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Reflects the amount of the write-down related to a troubled debt restructuring.

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Amount of unfunded portion of contractual agreement to lend funds to borrower for financing receivable modified as troubled debt restructuring.

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Amount, before valuation allowance, of financing receivable classified as held-for-sale.

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Amortized cost, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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The cash outflow for the purchase of loan receivable arising from the financing of goods and services.

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Loans (Details Textual)		12 Months Ended
Loans (Details Textual)	Nov. 01, 2021 USD ($)	Dec. 31, 2022 USD ($) Customer	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Financing Receivable Modifications [Line Items]
Total troubled debt restructurings		$ 5,600,000	$ 3,900,000
Commitments to lend additional amounts to borrowers classified as troubled debt restructurings		0	0
Allowance adjustment charge offs		66,000	129,000	$ 65,000
Increase in the allowance for loan losses as a result of the allowance		64,000	127,000	65,000
Loans originated		1,568,399,000	1,555,497,000
Maximum commercial loan and commercial real estate relationships		1,000,000
Unfunded commitments		603,000,000
Anticipated credit losses		1,400,000
Payments to Acquire Loans Receivable		478,200,000
Loans held for sale		4,000,000.0
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		$ 256,400,000
Amortizated over remaining life of loan				$ 11,000
Percentage of payments received from forgiveness of loans		99.90%
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		$ 107,700,000
Pending approval of forgiveness of loans			42,000
Amortizated over remaining life of loan			188,000
Loans originated			230,000
Percentage of payments received from forgiveness of loans		99.80%
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		$ 110,000	$ 109,000
Contractual Interest Rate Reduction \| Minimum
Financing Receivable Modifications [Line Items]
Reduction of the notes stated interest rate		0.25%
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