Additional federal home loan bank advances to be borrow under collateral pledge.

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Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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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 the collateral pledged in support of federal home loan bank advances outstanding.

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States the interest rate applicable to Federal Home Loan Bank advances outstanding as of the Balance Sheet date.

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Amount of repayments and penalties incurred in the satisfaction or roll-over of Federal Home Loan Bank (FHLB) advance.

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

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Period between issuance and maturity of long-term debt, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of income earned, after hedging basis adjustments, from fees charged for prepayment of certain Federal Home Loan Bank (FHLBank) advances before original maturity.

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The cash inflow from a borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in liquidation of the entity's assets or underlying collateral.

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Date the payments are due on subordinated debt, in YYYY-MM-DD format.

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Stated interest rate of the subordinated debt.

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Long-Term Borrowings (Details Textual) - USD ($)				1 Months Ended	12 Months Ended
Long-Term Borrowings (Details Textual) - USD ($)	Nov. 01, 2021	Jan. 07, 2020	Dec. 31, 2015	Nov. 30, 2021	Dec. 31, 2021	Dec. 31, 2022
Debt Instrument [Line Items]
Long-rem advances from FHLB					$ 0	$ 0
Residential mortgage, commercial real estate, and multi-family loans					$ 1,200,000,000	1,200,000,000
Additional borrowing limit						$ 623,900,000
Cortland Bank
Debt Instrument [Line Items]
Business acquisition, date of merger agreement	Nov. 01, 2021
Acquisition-date fair value	$ 4,262,000
Subordinated Notes
Debt Instrument [Line Items]
Aggregate principal amount				$ 75,000,000.0
Maturity date				Dec. 15, 2031
Fixed rate				3.125%
Notes maturity term				5 years
Basis spread on variable rate				220.00%
Net proceeds from sale				$ 73,800,000
Junior Subordinated Debt Securities \| Cortland Bank
Debt Instrument [Line Items]
Maturity date	Sep. 15, 2037
Business acquisition, date of merger agreement	Nov. 01, 2021
Acquisition-date fair value	$ 4,300,000
Interest rate, effective percentage					1.65%	6.22%
Junior Subordinated Debt Securities \| Maple Leaf
Debt Instrument [Line Items]
Maturity date		Dec. 15, 2036
Business acquisition, date of merger agreement		Jan. 07, 2020
Interest rate, effective percentage					1.90%	6.57%
Junior Subordinated Debt Securities \| National Bancshares Corporation
Debt Instrument [Line Items]
Maturity date			Jun. 15, 2035
Interest rate, effective percentage					2.00%	6.47%
Junior Subordinated Debt Securities \| 3-month LIBOR Rate \| Cortland Bank
Debt Instrument [Line Items]
Basis spread on variable rate	1.45%
Junior Subordinated Debt Securities \| 3-month LIBOR Rate \| Maple Leaf
Debt Instrument [Line Items]
Basis spread on variable rate		1.70%
Junior Subordinated Debt Securities \| 3-month LIBOR Rate \| National Bancshares Corporation
Debt Instrument [Line Items]
Basis spread on variable rate			1.80%
Putable Fixed-Rate Advance
Debt Instrument [Line Items]
Prepayment of FHLB advances					$ 65,000,000.0
Weighted Average Interest Rate					1.38%
Prepayment penalties					$ 2,100,000