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Note 12 - Commitments, Contingencies and Concentrations of Credit Risk - Summary of Off-balance Sheet Risk (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Off-balance sheet risk | $ 1,171,526 | $ 1,241,868
Commitments to Extend Credit [Member] |  |
Off-balance sheet risk | 662,515 | 647,971
Home Equity Line of Credit [Member] |  |
Off-balance sheet risk | 54,302 | 53,180
Outstanding Commercial Mortgage Loan Commitments [Member] |  |
Off-balance sheet risk | 433,034 | 514,473
Standby Letters of Credit [Member] |  |
Off-balance sheet risk | 20,770 | 25,271
Overdraft Protection Lines [Member] |  |
Off-balance sheet risk | $ 905 | $ 973

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- Definition The fair value of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 + Details
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