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Interest-Rate Swaps (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 | Dec. 31, 2019
Derivative [Line Items] |  |
Weighted average pay rate on interest-rate swaps | 4.63% | 4.60%
Weighted average receive rate on interest-rate swaps | 2.87% | 4.02%
Weighted average maturity (years) | 4 years 1 month 6 days | 4 years 4 months 24 days
Fair value of interest-rate swaps | $ (4,810) | $ (1,898)
Fair value of loan yield maintenance provisions | 4,810 | 1,898
Interest rate swaps |  |
Derivative [Line Items] |  |
Notional amounts | $ 43,310 | $ 42,178

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