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Note 6 - Securities Sold Under Agreements to Repurchase (Tables) | 6 Months Ended
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Jun. 30, 2021
Notes Tables |
Schedule of Repurchase Agreements [Table Text Block] |
|  | Six Months Ended June 30, 2021 |  |  | Twelve Months Ended December 31, 2020 |
Outstanding balance at end of period |  | $ | 169,737,000 |  |  | $ | 118,365,000 |
Average interest rate at end of period |  |  | 0.11 | % |  |  | 0.12 | %
Average daily balance during the period |  | $ | 141,861,000 |  |  | $ | 132,880,000 |
Average interest rate during the period |  |  | 0.11 | % |  |  | 0.12 | %
Maximum daily balance during the period |  | $ | 180,719,000 |  |  | $ | 173,186,000 |

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- Definition The entire disclosure for repurchase agreements. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration