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Note 3 - Debt Securities - Securities by Contractual Maturity (Details) $ in Thousands | Dec. 31, 2024 USD ($)
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Securities available for sale, due within one year, amortized cost | $ 63,595
Securities available for sale, due after one year but within five years, amortized cost | 34,712
Securities available for sale, due after five years but within ten years, amortized cost | 0
Securities available for sale, due after ten years, amortized cost | 0
Securities available for sale, single maturity date, amortized cost | 98,307
Securities available for sale, due within one year, fair value | 63,561
Securities available for sale, due after one year but within five years, fair value | 33,587
Securities available for sale, due after five years but within ten years, fair value | 0
Securities available for sale, due after ten years, fair value | 0
Securities available for sale, single maturity date, fair value | 97,148
US Treasury Securities [Member] |
Securities available for sale, due within one year, amortized cost | 55,760
Securities available for sale, due after one year but within five years, amortized cost | 0
Securities available for sale, due after five years but within ten years, amortized cost | 0
Securities available for sale, due after ten years, amortized cost | 0
Securities available for sale, single maturity date, amortized cost | 55,760
Securities available for sale, due within one year, fair value | 55,769
Securities available for sale, due after one year but within five years, fair value | 0
Securities available for sale, due after five years but within ten years, fair value | 0
Securities available for sale, due after ten years, fair value | 0
Securities available for sale, single maturity date, fair value | 55,769
US States and Political Subdivisions Debt Securities [Member] |
Securities available for sale, due within one year, amortized cost | 4,074
Securities available for sale, due after one year but within five years, amortized cost | 9,875
Securities available for sale, due after five years but within ten years, amortized cost | 0
Securities available for sale, due after ten years, amortized cost | 0
Securities available for sale, single maturity date, amortized cost | 13,949
Securities available for sale, due within one year, fair value | 4,073
Securities available for sale, due after one year but within five years, fair value | 9,764
Securities available for sale, due after five years but within ten years, fair value | 0
Securities available for sale, due after ten years, fair value | 0
Securities available for sale, single maturity date, fair value | 13,837
Corporate Debt Securities [Member] |
Securities available for sale, due within one year, amortized cost | 3,761
Securities available for sale, due after one year but within five years, amortized cost | 24,837
Securities available for sale, due after five years but within ten years, amortized cost | 0
Securities available for sale, due after ten years, amortized cost | 0
Securities available for sale, single maturity date, amortized cost | 28,598
Securities available for sale, due within one year, fair value | 3,719
Securities available for sale, due after one year but within five years, fair value | 23,823
Securities available for sale, due after five years but within ten years, fair value | 0
Securities available for sale, due after ten years, fair value | 0
Securities available for sale, single maturity date, fair value | $ 27,542

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