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Note 9 - Pledged Collateral Related to Securities Sold Under Repurchase Agreements | 12 Months Ended
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Dec. 31, 2021
Notes to Financial Statements |
Secured Borrowings [Text Block] | Note 9. Pledged Collateral Related to Securities Sold Under Repurchase Agreements The repurchase agreements mature daily and the following sets forth the pledged collateral at estimated fair value related to securities sold under repurchase agreements (repurchase agreements) as of December 31, 2021 and 2020 (in thousands):
|  | 2021 |  |  | 2020 |
Securities sold under agreements to repurchase: |  |  |  |  |  |  |  |
U.S. government treasuries |  | $ | 4,971 |  |  | $ | 2,069 |
U.S. government agencies |  |  | 38,045 |  |  |  | 39,362 |
U.S. government mortgage-backed securities |  |  | 11,127 |  |  |  | 14,320 |
Total pledged collateral |  | $ | 54,143 |  |  | $ | 55,751 |
The following table summarizes the outstanding amount of, and the average rate on, repurchase agreements as of December 31, 2021 and 2020 (dollars in thousands).
|  | 2021 |  |  | 2020 |
|  |  |  |  |  | Average |  |  |  |  |  |  | Average |
|  | Balance |  |  | Rate |  |  | Balance |  |  | Rate |
Repurchase agreements |  | $ | 39,851 |  |  |  | 0.25 | % |  | $ | 37,293 |  |  |  | 0.30 | %

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