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Note 4 - Investment Securities - Scheduled Maturities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Due in one year or less, amortized cost	$ 5,557
Due in one year or less, fair value	5,558
Due after one year through five years, amortized cost	26,255
Due after one year through five years, fair value	26,784
Due after five years through ten years, amortized cost	61,179
Due after five years through ten years, fair value	61,995
Due after ten years, amortized cost	543,873
Due after ten years, fair value	523,105
Total investment securities available-for-sale, amortized cost	1,316,828	$ 708,437
Total investment securities available-for-sale, fair value	1,252,202	612,847
Residential Mortgage-Backed Securities [Member]
Securities available-for-sale, without single maturity date, amortized cost	649,730
Securities available-for-sale, without single maturity date, fair value	607,899
Total investment securities available-for-sale, amortized cost	649,730	439,445
Total investment securities available-for-sale, fair value	607,899	378,838
Commercial Mortgage-Backed Securities [Member]
Securities available-for-sale, without single maturity date, amortized cost	30,180
Securities available-for-sale, without single maturity date, fair value	26,807
Total investment securities available-for-sale, amortized cost	30,180	24,989
Total investment securities available-for-sale, fair value	26,807	20,892
Other Debt Obligations [Member]
Securities available-for-sale, without single maturity date, amortized cost	54
Securities available-for-sale, without single maturity date, fair value	54
Total investment securities available-for-sale, amortized cost	54	171
Total investment securities available-for-sale, fair value	$ 54	$ 171

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+ References

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