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Investment Securities (Tables)
 12 Months Ended
Dec. 31, 2024
Investments, Debt and Equity Securities [Abstract]  
Schedule of Debt Securities, Available-for-Sale, Investments Reconciliation The amortized cost and fair values of debt securities at the dates specified are summarized as follows:
 2024
(Dollars in thousands)Amortized
Cost		Unrealized
Gains		Unrealized
Losses		Fair Value
Federal agency obligations$— $— $— $— 
U.S. Treasury securities6,998 — 766 6,232 
Federal agency CMO347,500 — 63,313 284,187 
Federal agency MBS20,199 — 3,007 17,192 
Taxable municipal securities261,137 10 32,926 228,221 
Tax-exempt municipal securities36,459 3 483 35,979 
Corporate bonds 3,473 — 54 3,419 
Subordinated corporate bonds10,000 — 1,300 8,700 
Total debt securities, at fair value$685,766 $13 $101,849 $583,930 
 2023
(Dollars in thousands)Amortized
Cost		Unrealized
Gains		Unrealized
Losses		Fair Value
Federal agency obligations
$5,006 $— $28 $4,978 
U.S. Treasury securities16,993 — 1,068 15,925 
Federal agency CMO396,665 33 61,947 334,751 
Federal agency MBS21,586 31 2,805 18,812 
Taxable municipal securities262,168 34 35,225 226,977 
Tax-exempt municipal securities45,548 156 285 45,419 
Corporate bonds4,058 — 92 3,966 
Subordinated corporate bonds11,957 — 1,672 10,285 
Total debt securities, at fair value$763,981 $254 $103,122 $661,113 
Schedule of Unrealized Loss on Debt Securities, Available-for-Sale Investments
The following tables summarize the duration of unrealized losses for debt securities at December 31, 2024 and 2023: 
 2024
 Less than 12 months12 months or longerTotal
(Dollars in thousands)Fair
Value		Unrealized
Losses		Fair
Value		Unrealized
Losses		Fair
Value		Unrealized
Losses		# of Holdings
Federal agency obligations$— $— $— $— $— $— — 
U.S. Treasury securities— — 6,232 766 6,232 766 1 
Federal agency CMO19,341 548 264,846 62,765 284,187 63,313 85 
Federal agency MBS1,623 22 15,569 2,985 17,192 3,007 11 
Taxable municipal securities1,881 124 224,469 32,802 226,350 32,926 248 
Tax-exempt municipal securities16,212 92 16,465 391 32,677 483 64 
Corporate bonds338 4 3,081 50 3,419 54 15 
Subordinated corporate bonds— — 8,700 1,300 8,700 1,300 5 
Total temporarily impaired debt securities$39,395 $790 $539,362 $101,059 $578,757 $101,849 429 
 2023
 Less than 12 months12 months or longerTotal
(Dollars in thousands)Fair
Value		Unrealized
Losses		Fair
Value		Unrealized
Losses		Fair
Value		Unrealized
Losses		# of Holdings
Federal agency obligations$4,978 $28 $— $— $4,978 $28 1 
U.S. Treasury securities— — 15,925 1,068 15,925 1,068 4 
Federal agency CMO8,810 18 311,221 61,929 320,031 61,947 86 
Federal agency MBS— — 17,114 2,805 17,114 2,805 10 
Taxable municipal securities1,993 316 223,949 34,909 225,942 35,225 251 
Tax-exempt municipal securities11,890 55 10,519 230 22,409 285 53 
Corporate bonds — — 3,966 92 3,966 92 18 
Subordinated corporate bonds
— — 10,285 1,672 10,285 1,672 6 
Total temporarily impaired debt securities$27,671 $417 $592,979 $102,705 $620,650 $103,122 429 
Schedule of Debt Securities, Available-for-Sale Investments Classified by Contractual Maturity Date
The contractual maturity distribution at December 31, 2024 of debt securities was as follows:
(Dollars in thousands)Amortized CostFair Value
Due in one year or less$13,786 $13,684 
Due after one, but within five years104,315 98,143 
Due after five, but within ten years216,263 186,185 
Due after ten years351,402 285,918 
Total debt securities$685,766 $583,930 
Schedule of Realized Gain (Loss) on Sales of Debt Securities, Available-for-Sale Investments
Sales of debt securities, for the years ended December 31, 2024, 2023 and 2022 are summarized as follows: 
(Dollars in thousands)202420232022
Amortized cost of debt securities sold(1)
$214 $87,198 $71,593 
Gross realized gains on sales— — 1,061 
Gross realized losses on sales(2)(2,419)(3,034)
Total proceeds from sales of debt securities$212 $84,779 $69,620 
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(1)     Amortized cost of investments sold is determined on a specific identification basis and includes pending trades based on trade date, if applicable.
Schedule of Gain (Loss) on Equity Securities
Gains and losses on equity securities for the years ended December 31, 2024 and 2023 are summarized as follows:
(Dollars in thousands)202420232022
Net gains (losses) recognized during the period on equity securities
$1,140 $666 $(514)
Less: Net gains (losses) realized on equity securities sold during the period
77 (5)(17)
Unrealized gains (losses) recognized during the reporting period on equity securities still held at the end of the period
$1,063 $671 $(497)