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Securities - Maturities and Realized Gains and Losses (Details) | 12 Months Ended
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Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Amortized Cost |  |  |
Due in one year or less | $ 58,069,000 |  |
Due after one year through five years | 225,197,000 |  |
Due after five years through ten years | 79,762,000 |  |
Due after ten years | 9,492,000 |  |
Amortized Cost | 372,520,000 | $ 280,824,000 |
Fair Value |  |  |
Due in one year or less | 57,548,000 |  |
Due after one year through five years | 226,623,000 |  |
Due after five years through ten years | 79,691,000 |  |
Due after ten years | 9,211,000 |  |
Fair Value | 373,073,000 | 286,389,000 |
Realized Gains and Losses |  |  |
Number of securities sales |  |  | 0
Proceeds from sales of securities | 2,300,000 | 5,990,000 |
Gross realized gains | 42,000 | 38,000 | $ 10,000
Net realized gains | 42,000 | 38,000 | 10,000
Proceeds from sales, maturities, calls and paydowns of securities | $ 114,019,000 | $ 123,741,000 | $ 75,583,000

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