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Held to Maturity Debt Securities (Tables)
 12 Months Ended
Dec. 31, 2024
Investments, Debt and Equity Securities [Abstract]  
Schedule of Investment Securities Held to Maturity
The following tables present the amortized cost, gross unrealized gains, gross unrealized losses and the estimated fair value for held to maturity debt securities, excluding allowances for credit losses of $14,000 and $31,000, as of December 31, 2024 and 2023 (in thousands):
 2024
 
Amortized
cost
Gross
unrealized
gains
Gross
unrealized
losses
Fair
value
Government-agency obligations$9,999 — (292)9,707 
State and municipal obligations311,118 689 (14,133)297,674 
Corporate obligations6,520 — (168)6,352 
$327,637 689 (14,593)313,733 
 2023
 
Amortized
cost
Gross
unrealized
gains
Gross
unrealized
losses
Fair
value
Treasury obligations$5,146 1 — 5,147 
Government-agency obligations11,058 — (652)10,406 
State and municipal obligations339,816 244 (9,700)330,360 
Corporate obligations7,091 — (403)6,688 
$363,111 245 (10,755)352,601 
Schedule of Investments Classified by Contractual Maturity Date
The amortized cost and fair value of held to maturity debt securities as of December 31, 2024 by contractual maturity, excluding allowances for credit losses of $14,000, as of December 31, 2024 are shown below (in thousands). Expected maturities may differ from contractual maturities due to prepayment or early call privileges of the issuer.
 2024
 
Amortized
cost
Fair
value
Due in one year or less$44,861 44,506 
Due after one year through five years168,560 165,304 
Due after five years through ten years96,148 89,996 
Due after ten years18,068 13,927 
$327,637 313,733 
The amortized cost and fair value of available for sale debt securities as of December 31, 2024, by contractual maturity, are shown below (in thousands). Expected maturities may differ from contractual maturities due to prepayment or early call privileges of the issuer.
 2024
 
Amortized
cost
Fair
value
Due in one year or less$141,817 141,426 
Due after one year through five years308,423 290,212 
Due after five years through ten years116,395 114,993 
Due after ten years71,796 65,051 
$638,431 611,682 
Schedule of Amortized Cost of held to Maturity Debt Securities by Credit Rating The following table provides the amortized cost of held to maturity debt securities by credit rating as of December 31, 2024 (in thousands):
December 31, 2024
Total PortfolioAAAAAABBBNot RatedTotal
Government-agency obligations$9,999 — — — — 9,999 
State and municipal obligations44,821 234,212 28,735 — 3,350 311,118 
Corporate obligations501 2,013 3,981 — 25 6,520 
$55,321 236,225 32,716 — 3,375 327,637 
December 31, 2023
Total PortfolioAAAAAABBBNot RatedTotal
Treasury obligations$5,146 — — — — 5,146 
Government-agency obligations11,058 — — — — 11,058 
State and municipal obligations43,749 156,438 137,231 — 2,398 339,816 
Corporate obligations504 2,510 4,052 — 25 7,091 
$60,457 158,948 141,283 — 2,423 363,111