Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Securities - Amortized Cost and Fair Value of Contractual Securities (Details)

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Note 4 - Securities - Amortized Cost and Fair Value of Contractual Securities (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Due within one year, amortized cost $ 430,857 $ 350,400
Due within one year, fair value 430,760 350,396
Due from one to five years, amortized cost 132,967 70,016
Due from one to five years, fair value 129,779 67,334
Due from five to ten years, amortized cost 291,157 304,216
Due from five to ten years, fair value 256,407 264,893
Due after ten years, amortized cost 3,000 3,000
Due after ten years, fair value 2,068 2,076
Mortgage-backed securities, amortized cost 281,343 241,458
Mortgage-backed securities, fair value 254,915 215,485
Available for sale, amortized cost 1,139,325 969,090
Available for sale, fair value 1,073,929 900,183 [1]
Held to maturity debt securities, Due within one year 144,940 260,047
Held to maturity debt securities, Due within one year, fair value 144,283 257,835
Held to maturity debt securities, Due from one to five years 253,772 203,481
Held to maturity debt securities, Due from one to five years, fair value 229,043 185,741
Held to maturity debt securities, Due from five to ten years 3,289 53,521
Held to maturity debt securities, Due from five to ten years, fair value 2,878 48,022
Mortgage-backed securities, amortized cost 465,695 465,615
Mortgage-backed securities, fair value 409,066 415,593
Held to maturity, amortized cost 867,696 982,664 [1]
Held to maturity debt securities, fair value $ 785,270 $ 907,191
[1] derived from audited financial statements.