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v3.22.1

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 |  |  |  |

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