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Short-term Borrowings (Tables) | 12 Months Ended
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Dec. 31, 2020
Summary of Long-term Advances from the Federal Home Loan Bank | At year end, long-term advances from the FHLB were as follows:
|  | 2020 |  |  | 2019 |
|  |  |  |  |  | Weighted |  |  |  |  |  |  | Weighted |
|  |  |  |  |  | Average |  |  |  |  |  |  | Average |
|  | Amount |  |  | Rate |  |  | Amount |  |  | Rate |
Fixed-rate constant payment advance |  | $ | 1,980 |  |  |  | 1.70 | % |  | $ | 2,841 |  |  |  | 1.70 | %
Convertible and putable fixed-rate advance |  |  | 65,000 |  |  |  | 1.38 | % |  |  | 40,000 |  |  |  | 1.79 | %
Total advances |  | $ | 66,980 |  |  |  | 1.39 | % |  | $ | 42,841 |  |  |  | 1.78 | %
Summary of Securities Sold under Agreements to Repurchase | The securities are held in segregated safekeeping accounts at the Federal Reserve Bank, Farmers Trust and the FHLB. Information concerning securities sold under agreements to repurchase is summarized as follows
|  | 2020 |  |  | 2019 |  |  | 2018 |
Average balance during the year |  | $ | 3,425 |  |  | $ | 3,343 |  |  | $ | 51,694 |
Average interest rate during the year |  |  | 0.66 | % |  |  | 1.36 | % |  |  | 0.67 | %
Maximum month-end balance during the year |  | $ | 5,150 |  |  | $ | 5,505 |  |  | $ | 87,163 |
Weighted average year-end interest rate |  |  | 0.66 | % |  |  | 1.36 | % |  |  | 0.67 | %
Balance at year-end |  | $ | 2,171 |  |  | $ | 1,700 |  |  | $ | 4,409 |
Schedule Disaggregation of the Obligation by the Class of Collateral Pledged for Short-Term Financing Obtained Through the Sales of Repurchase Agreements | The following table provides a disaggregation of the obligation by class of collateral pledged for short-term financing obtained through the sales of repurchase agreements:
|  | 2020 |  |  | 2019 |
Overnight and continuous repurchase agreements |  |  |  |  |  |  |  |
U.S. Treasury and U.S. government sponsored entities |  | $ | 42 |  |  | $ | 55 |
State and political subdivisions |  |  | 1,407 |  |  |  | 627 |
Mortgage-backed securities - residential |  |  | 568 |  |  |  | 948 |
Collateralized mortgage obligations |  |  | 154 |  |  |  | 70 |
Total borrowings |  | $ | 2,171 |  |  | $ | 1,700 |
Pledged |
Summary of Long-term Advances from the Federal Home Loan Bank | FHLB advances were secured by pledgings described in the following Long-Term Borrowings footnote. Balances at year end 2019 were as follows:
|  |  | 2019 |
|  |  |  |  |  |  | Weighted |
|  |  |  |  |  |  | Average |
|  |  | Amount |  |  | Rate |
Repurchase advance |  |  | $ | 50,000 |  |  |  | 1.63 | %
Fixed rate advances |  |  |  | 25,000 |  |  |  | 0.72 | %
Total advances |  |  | $ | 75,000 |  |  |  | 1.33 | %

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- Definition The entire disclosure for repurchase agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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