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Investment Securities (Tables)
 6 Months Ended
Jun. 30, 2025
Investments, Debt and Equity Securities [Abstract]  
Schedule of Amortized Cost and Fair Values of Investment Securities Available-for-sale
The following tables present amortized cost and fair values of investment securities available-for-sale as of the periods shown:
June 30, 2025
(Dollars in thousands)Amortized CostUnrealized GainUnrealized LossFair Value
United States government agency securities$43,874 $33 $(4,555)$39,352 
United States sponsored mortgage-backed securities188,342 366 (12,254)176,454 
United States treasury securities56,989 — (616)56,373 
Municipal securities111,933 20 (16,923)95,030 
Corporate debt securities21,884 50 (88)21,846 
Other debt securities7,500 — — 7,500 
Investment securities available-for-sale$430,522 $469 $(34,436)$396,555 
December 31, 2024
(Dollars in thousands)Amortized CostUnrealized GainUnrealized LossFair Value
United States government agency securities$45,449 $10 $(5,613)$39,846 
United States sponsored mortgage-backed securities161,032 130 (13,582)147,580 
United States treasury securities106,095 — (2,120)103,975 
Municipal securities114,845 28 (12,733)102,140 
Corporate debt securities9,943 67 (92)9,918 
Other debt securities7,500 — — 7,500 
Investment securities available-for-sale$444,864 $235 $(34,140)$410,959 

The following table presents amortized cost and fair values of available-for-sale debt securities by contractual maturity as of the period shown:
June 30, 2025
(Dollars in thousands)Amortized CostFair Value
Within one year$59,639 $59,023 
After one year, but within five years20,509 19,941 
After five years, but within ten years51,387 47,690 
After ten years298,987 269,901 
Total available-for-sale debt securities$430,522 $396,555 
Schedule of Investments in an Unrealized Loss Position
The following tables show available-for-sale debt securities in an unrealized loss position for which an ACL has not been recorded as of June 30, 2025 and December 31, 2024, aggregated by investment category and length of time that the individual securities have been in a continuous loss position:
June 30, 2025
(Dollars in thousands)Less than 12 months12 months or more
Description and number of positionsFair ValueUnrealized LossFair ValueUnrealized Loss
United States government agency securities (23)
$5,527 $(165)$30,413 $(4,390)
United States sponsored mortgage-backed securities (74)
88,488 (1,743)43,066 (10,511)
United States treasury securities (12)
— — 56,373 (616)
Municipal securities (196)
10,061 (498)84,083 (16,425)
Corporate debt securities (7)
11,515 (54)1,966 (34)
Total$115,591 $(2,460)$215,901 $(31,976)
December 31, 2024
(Dollars in thousands)Less than 12 months12 months or more
Description and number of positionsFair ValueUnrealized LossFair ValueUnrealized Loss
United States government agency securities (28)
$5,956 $(264)$32,854 $(5,349)
United States sponsored mortgage-backed securities (75)
92,929 (2,291)44,444 (11,291)
United States treasury securities (23)
— — 103,975 (2,120)
Municipal securities (201)
17,613 (1,425)83,592 (11,308)
Corporate debt securities (6)
990 (10)2,818 (82)
Total$117,488 $(3,990)$267,683 $(30,150)
Schedule of Realized Gain (Loss) on Investments
The following table summarizes investment sales, related gains and losses and unrealized holding losses for the periods shown:
Three Months Ended June 30,Six Months Ended June 30,
(Dollars in thousands)2025202420252024
Proceeds from sales of available-for-sale securities$28,965 $— $29,480 $24,327 
Gains, gross381 — 381 658 
Losses, gross291 — 333 — 
Proceeds from sales of equity securities$188 $39 $188 $39 
Gain, gross118 103 118 103 
Unrealized holding (losses) gains on equity securities$(374)$14 $(640)$(35)