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Note 8 - Commitments and Off-balance Sheet Risk - Exposure to Credit Losses (Details) - USD ($) | Mar. 31, 2022 | Dec. 31, 2021
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Contractual amounts of financial instruments with off-balance sheet risk | $ 1,540,413,000 | $ 1,565,871,000
Standby Letters of Credit [Member] |  |
Contractual amounts of financial instruments with off-balance sheet risk | 32,954,000 | 33,109,000
Unused lines of Credit [Member] | Commercial Portfolio Segment [Member] |  |
Contractual amounts of financial instruments with off-balance sheet risk | 1,115,888,000 | 1,098,951,000
Unused lines of Credit [Member] | One to Four Family Mortgages [Member] |  |
Contractual amounts of financial instruments with off-balance sheet risk | 65,112,000 | 64,313,000
Unused lines of Credit [Member] | Consumer Credit Card [Member] |  |
Contractual amounts of financial instruments with off-balance sheet risk | 95,813,000 | 92,146,000
Unused lines of Credit [Member] | Consumer Other Financing Receivable 1 [Member] |  |
Contractual amounts of financial instruments with off-balance sheet risk | 72,544,000 | 64,876,000
Loan Origination Commitments [Member] |  |
Contractual amounts of financial instruments with off-balance sheet risk | $ 158,102,000 | $ 212,476,000

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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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