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Note 6 - Deposits - Certificates of Deposit with Balances of $100,000 or More (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Up to three months | $ 167,535 | $ 40,538
Three months to six months | 127,344 | 25,141
Six months to twelve months | 210,915 | 54,394
Over twelve months | 115,953 | 141,536
Total certificates of deposit | $ 621,747 | $ 261,609

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- Definition Amount of time deposit liabilities, including certificates of deposit, in denominations of $100,000 or more, maturing after twelve months from the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Industry Guide -Number 3 -Section V -Paragraph D-E -Publisher SEC + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of time deposit liabilities, including certificates of deposit, in denominations of $100,000 or more, maturing within six to twelve months after the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Industry Guide -Number 3 -Section V -Paragraph D-E -Publisher SEC + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of time deposit liabilities, including certificates of deposit, in denominations of $100,000 or more, maturing within three months or fewer from the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Industry Guide -Number 3 -Section V -Paragraph D-E -Publisher SEC + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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X
- Definition Amount of time deposit liabilities, including certificates of deposit, in denominations of $100,000 or more, maturing within three to six months after the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Industry Guide -Number 3 -Section V -Paragraph D-E -Publisher SEC + Details
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Data Type: | xbrli:monetaryItemType
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X
- Definition Amount of time deposit liabilities, including certificates of deposit, in denominations of $100,000 or more. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Industry Guide -Number 3 -Section V -Paragraph D-E -Publisher SEC + Details
Name: | us-gaap_TimeDeposits100000OrMore
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant