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Investment Securities (Tables)
12 Months Ended
Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]  
Available-for-sale securities reconciliation he following tables summarize the amortized cost and fair value of securities available-for-sale and securities held-for-maturity at December 31, 2022 and 2021 and the corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive (loss) income and gross unrecognized gains and losses:
 December 31, 2022
 Amortized
Cost
Gross Unrealized
Gains
Gross Unrealized
Losses
Estimated
Fair Value
Available-for-Sale Securities    
Debt Securities:    
U.S. Treasury securities$9,990 $— $(1,283)$8,707 
U.S. Government agencies107 — (9)98 
Obligations of states and political subdivisions201,638 — (26,653)174,985 
U.S. Government sponsored entities and agencies collateralized by residential mortgage obligations
117,292 (7,803)109,493 
Private label mortgage and asset backed securities411,441 14 (55,913)355,542 
 $740,468 $18 $(91,661)$648,825 

 December 31, 2022
 Amortized
Cost
Gross Unrealized
Gains
Gross Unrealized
Losses
Estimated
Fair Value
Held to Maturity    
Debt Securities:    
Obligations of states and political subdivisions$192,004 $67 $(23,166)$168,905 
U.S. Government sponsored entities and agencies collateralized by residential mortgage obligations
10,430 — (1,762)8,668 
Private label mortgage and asset backed securities56,691 — (5,931)50,760 
Corporate debt securities45,982 — (3,066)42,916 
 $305,107 $67 $(33,925)$271,249 

 December 31, 2021
 Amortized
Cost
Gross Unrealized
 Gains
Gross Unrealized
Losses
Estimated
 Fair Value
Available-for-Sale Securities    
Debt Securities:    
U.S. Treasury securities$9,988 $— $(63)$9,925 
U.S. Government agencies373 — 379 
Obligations of states and political subdivisions512,952 16,703 (3,188)526,467 
U.S. Government sponsored entities and agencies collateralized by residential mortgage obligations
213,471 2,245 (1,277)214,439 
Private label mortgage and asset backed securities317,089 824 (4,693)313,220 
Corporate debt securities44,500 595 (317)44,778 
`$1,098,373 $20,373 $(9,538)$1,109,208 
Realized gains and losses Proceeds and gross realized (losses)/gains on investment securities for the years ended December 31, 2022, 2021, and 2020 are shown below (in thousands):
 Years Ended December 31,
202220212020
Available-for-Sale Securities   
Proceeds from sales or calls$252,331 $26,222 $283,956 
Gross realized gains from sales or calls$5,235 $580 $7,123 
Gross realized losses from sales or calls$(6,965)$(79)$(2,871)
Investments by contractual maturity The amortized cost and estimated fair value of available-for-sale and held-to-maturity investment securities at December 31, 2022 and 2021 by contractual maturity are shown in the two tables below (in thousands).  Expected maturities will differ from contractual maturities because the issuers of the securities may have the right to call or prepay obligations with or without call or prepayment penalties.
December 31, 2022December 31, 2021
Available-for-Sale SecuritiesAmortized 
Cost
Estimated 
Fair Value
Amortized 
Cost
Estimated 
Fair Value
Within one year$— $— $— $— 
After one year through five years— — 3,690 4,038 
After five years through ten years45,918 38,383 99,615 101,498 
After ten years165,710 145,309 419,635 430,856 
 211,628 183,692 522,940 536,392 
Investment securities not due at a single maturity date:  
U.S. Government agencies107 98 373 379 
U.S. Government sponsored entities and agencies collateralized by residential mortgage obligations
117,292 109,493 213,471 214,439 
Private label mortgage and asset backed securities
411,441 355,542 317,089 313,220 
Corporate debt securities
— — 44,500 44,778 
 $740,468 $648,825 $1,098,373 $1,109,208 
December 31, 2022December 31, 2021
Held-to-Maturity SecuritiesAmortized 
Cost
Estimated 
Fair Value
Amortized 
Cost
Estimated 
Fair Value
Within one year$— $— $— $— 
After one year through five years132 129 — — 
After five years through ten years51,424 46,143 — — 
After ten years140,448 122,633 — — 
192,004 168,905 — — 
Investment securities not due at a single maturity date:
U.S. Government sponsored entities and agencies collateralized by residential mortgage obligations
10,430 8,668 — — 
Private label mortgage and asset backed securities
56,691 50,760 — — 
Corporate debt securities
45,982 42,916 — — 
$305,107 $271,249  $—  $— 
Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value
Investment securities with unrealized losses at December 31, 2022 and 2021 are summarized and classified according to the duration of the loss period as follows (in thousands):
 December 31, 2022
 Less than 12 Months12 Months or MoreTotal
 Fair
Value
Unrealized
Losses
Fair
Value
Unrealized
Losses
Fair
Value
Unrealized
Losses
Available-for-Sale Securities      
Debt Securities:      
U.S. Treasury securities$— $— $8,707 $(1,283)$8,707 $(1,283)
U.S. Government agencies— — 98 (9)98 (9)
Obligations of states and political subdivisions90,808 (12,208)84,177 (14,445)174,985 (26,653)
U.S. Government sponsored entities and agencies collateralized by residential mortgage obligations
20,825 (1,058)88,520 (6,745)109,345 (7,803)
Private label residential mortgage and asset backed securities
126,284 (14,529)229,152 (41,384)355,436 (55,913)
 $237,917 $(27,795)$410,654 $(63,866)$648,571 $(91,661)
 December 31, 2022
 Less than 12 Months12 Months or MoreTotal
 Fair
Value
Unrealized
Losses
Fair
Value
Unrealized
Losses
Fair
Value
Unrealized
Losses
Held-to-Maturity Securities      
Debt Securities:      
Obligations of states and political subdivisions$48,311 $(5,505)$118,026 $(17,661)$166,337 $(23,166)
U.S. Government sponsored entities and agencies collateralized by residential mortgage obligations
— — 8,668 (1,762)8,668 (1,762)
Private label residential mortgage and asset backed securities
19,393 (1,916)31,367 (4,015)50,760 (5,931)
Corporate debt securities23,997 (1,561)18,919 (1,505)42,916 (3,066)
 $91,701 $(8,982)$176,980 $(24,943)$268,681 $(33,925)
 


 December 31, 2021
 Less than 12 Months12 Months or MoreTotal
 Fair
Value
Unrealized
Losses
Fair
Value
Unrealized
Losses
Fair
Value
Unrealized
Losses
Available-for-Sale Securities      
Debt Securities:      
U.S. Treasury securities$9,925 $(63)$— $— $9,925 $(63)
Obligations of states and political subdivisions143,336 (2,896)6,336 (292)149,672 (3,188)
U.S. Government sponsored entities and agencies collateralized by residential mortgage obligations
91,385 (905)40,365 (372)131,750 (1,277)
Private label residential mortgage backed securities
230,987 (3,661)28,908 (1,032)259,895 (4,693)
Corporate debt securities21,183 (317)— — 21,183 (317)
 $496,816 $(7,842)$75,609 $(1,696)$572,425 $(9,538)