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v3.20.4

Borrowed Funds and Mandatorily Redeemable Securities (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($) note | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Borrowed funds and mandatorily redeemable securities |  |  |
Total long-term debt and mandatorily redeemable securities | $ 81,864 | $ 71,639 |
Annual maturities of long-term debt |  |  |
2021 | 3,168 |  |
2022 | 4,830 |  |
2023 | 2,049 |  |
2024 | 11,187 |  |
2025 | 145 |  |
Thereafter | 60,485 |  |
Mandatorily redeemable securities |  |  |
Interest expense | 2,140 | 2,220 | $ 1,610
Securities subject to mandatory redemption |  |  |
Borrowed funds and mandatorily redeemable securities |  |  |
Mandatorily redeemable securities | 20,358 | 17,972 |
Federal Home Loan Bank borrowings |  |  |
Borrowed funds and mandatorily redeemable securities |  |  |
Long-term debt | $ 55,183 | 45,819 |
Annual maturities of long-term debt |  |  |
Number of Federal Home Loan Bank borrowings, fixed rate notes | note | 18 |  |
Collateral security | $ 68,950 |  |
Other long-term debt |  |  |
Borrowed funds and mandatorily redeemable securities |  |  |
Long-term debt | $ 6,323 | $ 7,848 |
Minimum | Federal Home Loan Bank borrowings |  |  |
Borrowed funds and mandatorily redeemable securities |  |  |
Interest rate on Federal Home Loan Bank borrowings (as a percent) | 0.54% |  |
Maximum | Federal Home Loan Bank borrowings |  |  |
Borrowed funds and mandatorily redeemable securities |  |  |
Interest rate on Federal Home Loan Bank borrowings (as a percent) | 5.04% |  |

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