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SHORT-TERM BORROWINGS | 12 Months Ended
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Dec. 31, 2021
SHORT-TERM BORROWINGS |
SHORT-TERM BORROWINGS | 12. SHORT-TERM BORROWINGS Short-term borrowings, which consist of federal funds purchased and other short-term borrowings are summarized as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | AT DECEMBER 31, 2021 |
​ |  | FEDERAL |  | ​ | ​ |
​ | ​ | FUNDS | ​ | SHORT-TERM |
​ |  | PURCHASED |  | BORROWINGS |
​ | ​ | (IN THOUSANDS, EXCEPT RATES) |
Balance | ​ | $ | — | ​ | $ | — | ​
Maximum balance at any month end | ​ |  | — | ​ |  | 4,077 | ​
Average balance during year | ​ |  | — | ​ |  | 389 | ​
Average rate paid for the year | ​ |  | — | % |  | 0.37 | %
Interest rate on year-end balance | ​ |  | — | ​ |  | 0.28 | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | AT DECEMBER 31, 2020 |
​ |  | FEDERAL |  | ​ | ​ |
​ | ​ | FUNDS | ​ | SHORT-TERM |
​ |  | PURCHASED |  | BORROWINGS |
​ | ​ | (IN THOUSANDS, EXCEPT RATES) |
Balance | ​ | $ | — | ​ | $ | 24,702 | ​
Maximum balance at any month end | ​ |  | 2,000 | ​ |  | 41,632 | ​
Average balance during year | ​ |  | 18 | ​ |  | 4,929 | ​
Average rate paid for the year | ​ |  | 0.87 | % |  | 0.58 | %
Interest rate on year-end balance | ​ |  | — | ​ |  | 0.41 | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | AT DECEMBER 31, 2019 |
​ |  | FEDERAL |  | ​ |
​ | ​ | FUNDS | ​ | SHORT-TERM |
​ |  | PURCHASED |  | BORROWINGS |
​ | ​ | (IN THOUSANDS, EXCEPT RATES) |
Balance | ​ | $ | — | ​ | $ | 22,412 | ​
Maximum balance at any month end | ​ |  | — | ​ |  | 49,615 | ​
Average balance during year | ​ |  | 58 | ​ |  | 11,030 | ​
Average rate paid for the year | ​ |  | 3.04 | % |  | 2.59 | %
Interest rate on year-end balance | ​ |  | — | ​ |  | 1.81 | ​
​ Average amounts outstanding during the year represent daily averages. Average interest rates represent interest expense divided by the related average balances. These borrowing transactions have an average maturity of overnight.

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- Definition The entire disclosure for short-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
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