Maximum percentage of common shares exchanged for company shares under merger agreement.

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Number of operating branches.

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Percentage of common shares exchanged for company cash under merger agreement.

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Date when the business acquisition agreement was executed, in YYYY-MM-DD format.

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Number of shares of equity interests issued or issuable to acquire entity.

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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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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The amount of cash paid during the reporting period for charges associated with the mergers.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Business Combinations (Details Textual) $ / shares in Units, $ in Thousands				3 Months Ended	12 Months Ended
	Mar. 23, 2022 Branch	Nov. 01, 2021 USD ($) $ / shares shares	Oct. 31, 2021 USD ($) $ / shares shares	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Business Acquisition [Line Items]
Total assets				$ 4,205,855	$ 4,142,749
Deposits				3,693,811	3,547,235
Equity				393,886	472,432	$ 347,355	$ 350,097
Goodwill				94,240	94,240
Common Stock
Business Acquisition [Line Items]
Equity				304,670	306,123	$ 208,199	$ 208,763
Emclaire Financial
Business Acquisition [Line Items]
Business acquisition, date of merger agreement	Mar. 23, 2022
Number of operating branches \| Branch	19
Total assets				1,100,000
Gross loans				794,900
Deposits				936,000
Equity				86,700
Cortland Bank
Business Acquisition [Line Items]
Business acquisition, date of merger agreement		Nov. 01, 2021
Cash consideration per share \| $ / shares \| $ / shares			$ 17.82
Maximum percentage of common shares exchanged for company's shares under merger agreement		75.00%
Percentage of common shares exchanged for company's cash under merger agreement		25.00%
Value of stock issued for acquisition		$ 29,618
Fair value of total consideration transferred		128,539	$ 128,500
Merger related costs				$ 1,900	$ 7,100
Goodwill		$ 48,465
Cortland Bank \| Common Stock
Business Acquisition [Line Items]
Cash consideration per share \| $ / shares \| $ / shares		$ 28.00
Shares of stock issued for acquisition \| shares		1.75	5,600,000
Value of stock issued for acquisition			$ 29,600