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SECURITIES (Tables)
 9 Months Ended
Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]  
Schedule of Amortized Cost and Estimated Fair Value of Securities Available for Sale
Amortized cost and estimated fair value of securities available for sale are as follows (in thousands):
 September 30, 2023
 Amortized CostUnrealized GainsUnrealized LossesAllowance for Credit LossesEstimated Fair Value
U.S. Treasury notes and bonds$61,033 $— $6,033 $— $55,000 
Mortgage-backed securities, residential486,189 — 97,158 — 389,031 
Obligations of states and political subdivisions39,535 — 3,382 — 36,153 
Corporate bonds and notes25,750 — 5,405 — 20,345 
SBA loan pools71,330 96 2,951 — 68,475 
Total$683,837 $96 $114,929 $— $569,004 

 December 31, 2022
 Amortized CostUnrealized GainsUnrealized LossesEstimated Fair Value
U.S. Treasury notes and bonds$61,800 $— $6,225 $55,574 
Mortgage-backed securities, residential518,838 — 83,707 435,131 
Obligations of states and political subdivisions39,828 2 938 38,892 
Corporate bonds and notes25,750 — 3,780 21,970 
SBA loan pools82,982 155 2,116 81,022 
Total$729,198 $157 $96,766 $632,589 
Schedule of Amortized Cost and Estimated Fair Value of Securities Held to Maturity
Amortized cost and estimated fair value of securities held to maturity are as follows (in thousands):
 September 30, 2023
 Amortized CostUnrecognized GainsUnrecognized LossesAllowance for Credit LossesEstimated Fair Value
Obligations of states and political subdivisions$824 $— $— $— $824 
Time deposits with other financial institutions980 — 25 — 955 
Total$1,804 $— $25 $— $1,779 

 December 31, 2022
 Amortized CostUnrecognized GainsUnrecognized LossesEstimated Fair Value
Obligations of states and political subdivisions$952 $— $— $952 
Time deposits with other financial institutions1,472 — 22 1,450 
Total$2,424 $— $22 $2,402 
Schedule of Amortized Cost and Estimated Fair Value of Debt Securities by Contractual Maturity Securities not due at a single maturity date are shown separately (in thousands):
September 30, 2023
Available for SaleHeld to Maturity
Amortized
Cost		Fair
Value		Amortized
Cost		Fair
Value
Within one year$5,480 $5,243 $529 $523 
After one, but within five years101,840 91,028 635 616 
After five, but within ten years18,528 14,821 640 640 
After ten years470 406 — — 
126,318 111,498 1,804 1,779 
Mortgage-backed securities, residential486,189 389,031 — — 
SBA loan pools71,330 68,475 — — 
Total$683,837 $569,004 $1,804 $1,779 
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value
The following tables summarize the investment securities available for sale with unrealized losses at September 30, 2023 and December 31, 2022 by aggregated major security type and length of time in a continuous unrealized loss position (in thousands):
 Less than 12 months12 months or longerTotal
September 30, 2023Fair ValueUnrealized LossesFair ValueUnrealized LossesFair ValueUnrealized Losses
U.S. Treasury notes and bonds$981 $14 $54,019 $6,019 $55,000 $6,033 
Mortgage-backed securities, residential— — 389,031 97,158 389,031 97,158 
Obligations of states and political subdivisions16,794 1,460 19,359 1,922 36,153 3,382 
Corporate bonds and notes7,269 2,732 13,076 2,673 20,345 5,405 
SBA loan pools6,474 15 54,094 2,936 60,568 2,951 
Total temporarily impaired securities$31,518 $4,221 $529,579 $110,708 $561,097 $114,929 

 Less than 12 months12 months or longerTotal
December 31, 2022Fair ValueUnrealized LossesFair ValueUnrealized LossesFair ValueUnrealized Losses
U.S. Treasury notes and bonds$1,011 $30 $54,563 $6,195 $55,574 $6,225 
Mortgage-backed securities, residential79,891 7,621 355,240 76,086 435,131 83,707 
Obligations of states and political subdivisions37,847 938 — — 37,847 938 
Corporate bonds and notes4,515 485 7,455 3,295 11,970 3,780 
SBA loan pools14,333 925 51,123 1,191 65,456 2,116 
Total temporarily impaired securities$137,597 $9,999 $468,381 $86,767 $605,978 $96,766