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Securities
 3 Months Ended
Mar. 31, 2024
Investments, Debt and Equity Securities [Abstract]  
Securities Securities –
The amortized cost and fair values of securities available for sale as of March 31, 2024, and December 31, 2023 are summarized as follows:
 March 31, 2024
 (Dollars in thousands)
 Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Fair
Value
U.S. Treasury Securities$17,676 $- $1,460 $16,216 
U.S. Government Agencies10,235 - 858 9,377 
Corporate Securities49,453 12 5,292 44,173 
Mortgage-Backed Securities563,406 446 52,235 511,617 
Municipal Securities322,956 62 31,498 291,520 
Total Securities Available for Sale$963,726 $520 $91,343 $872,903 
 December 31, 2023
 (Dollars in thousands)
 Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Fair
Value
U.S. Treasury Securities$17,690 $- $1,451 $16,239 
U.S. Government Agencies10,258 - 848 9,410 
Corporate Securities49,609 - 5,770 43,839 
Mortgage-Backed Securities555,148 976 49,814 506,310 
Municipal Securities331,273 298 27,798 303,773 
Total Securities Available for Sale$963,978 $1,274 $85,681 $879,571 
The following tables present a summary of securities with gross unrealized losses and fair values at March 31, 2024 and December 31, 2023, aggregated by investment category and length of time in a continued unrealized loss position. Due to the nature of these investments and current prevailing market prices, these unrealized losses are considered non-credit related.
 March 31, 2024
 Less Than 12 Months12 Months or GreaterTotal
 (Dollars in thousands)
 Fair
Value		Gross
Unrealized
Losses		Fair
Value		Gross
Unrealized
Losses		Fair
Value		Gross
Unrealized
Losses
U.S. Treasury Securities$- $- $16,216 $1,460 $16,216 $1,460 
U.S. Government Agencies- - 9,377 858 9,377 858 
Corporate Securities7,675 218 35,458 5,074 43,133 5,292 
Mortgage-Backed Securities112,492 1,025 375,877 51,210 488,369 52,235 
Municipal Securities19,761 193 261,986 31,305 281,747 31,498 
Total Securities Available for Sale$139,928 $1,436 $698,914 $89,907 $838,842 $91,343 
 December 31, 2023
 Less Than 12 Months12 Months or GreaterTotal
 (Dollars in thousands)
Fair
Value		Gross
Unrealized
Losses		Fair
Value		Gross
Unrealized
Losses		Fair
Value		Gross
Unrealized
Losses
U.S. Treasury Securities$- $- $16,239 $1,451 $16,239 $1,451 
U.S. Government Agencies- - 9,410 848 9,410 848 
Corporate Securities7,529 362 36,106 5,408 43,635 5,770 
Mortgage-Backed Securities21,436 895 375,891 48,919 397,327 49,814 
Municipal Securities8,013 63 270,467 27,735 278,480 27,798 
Total Securities Available for Sale$36,978 $1,320 $708,113 $84,361 $745,091 $85,681 
As of March 31, 2024, and December 31, 2023, respectively, no allowance for credit losses was recognized on available for sale securities in an unrealized loss position as management does not believe any of the securities are impaired due to credit quality. This determination is based on the Company’s analysis of the underlying risk characteristics including credit ratings, historical loss experience, and other qualitative factors. Further, the securities continue to make principal and interest payments under their contractual terms and management does not have the intent to sell any of the securities and believes that it is more likely than not that the Company will not have to sell any such securities before a recovery of amortized cost basis. Therefore, the Company has determined the unrealized losses are due to changes in market interest rates compared to rates when the securities were acquired.
The amortized cost and fair values of securities available for sale as of March 31, 2024, by contractual maturity are shown below. Actual maturities may differ from contractual maturities in mortgage-backed securities because the mortgages underlying the securities may be called or repaid without any penalties.
 Amortized
Cost		Fair
Value
 (Dollars in thousands)
Less Than One Year$24,719 $24,324 
One to Five Years181,104 168,917 
Over Five to Ten Years377,532 341,398 
Over Ten Years380,371 338,264 
Total Securities Available for Sale$963,726 $872,903 
Securities available for sale with a fair value of $612.2 million and $629.7 million, were pledged as collateral on public deposits and for other purposes as required or permitted by law as of March 31, 2024, and December 31, 2023, respectively.
At March 31, 2024 and December 31, 2023, accrued interest receivable on securities was $3.7 million and $4.7 million, respectively, and included within accrued interest receivable on the consolidated balance sheets.