Annual report pursuant to Section 13 and 15(d)

Note 2 - Debt Securities - Investment Securities Continuous Unrealized Loss Position (Details)

v3.22.4
Note 2 - Debt Securities - Investment Securities Continuous Unrealized Loss Position (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Debt securities available for sale, less than twelve months, gross unrealized losses $ (22,258) $ (3,393)
Debt securities available for sale, less than twelve months, fair value 372,749 370,172
Debt Securities Available for Sale, Twelve Months or More, Gross Unrealized Losses (40,309) (9)
Debt Securities, Available for Sale, Twelve Months or More, Fair Value 260,400 228
Debt Securities, Available for Sale, Gross Unrealized Losses (62,567) (3,402)
Debt Securities, Available for Sale, Fair Value 633,150 370,400
Debt Securities held to maturity less than twelve months, gross unrealized losses (44,573) (1,949)
Debt securities, held to maturity, Less Than Twelve Months, Fair Value 578,572 258,372
Debt Securities Held To Maturity, Twelve Months or More, Gross Unrealized Losses (53,603) 0
U.S. Treasury Securities 352,742 0
Debt Securities, Held To Maturity , Gross Unrealized Losses (98,175) (1,949)
Debt Securities,Held To Maturity, Fair Value 931,314 258,372
US Treasury Securities [Member]    
Debt securities available for sale, less than twelve months, gross unrealized losses (33)  
Debt securities available for sale, less than twelve months, fair value 2,969  
Debt Securities Available for Sale, Twelve Months or More, Gross Unrealized Losses 0  
Debt Securities, Available for Sale, Twelve Months or More, Fair Value 0  
Debt Securities, Available for Sale, Gross Unrealized Losses (33)  
Debt Securities, Available for Sale, Fair Value 2,969  
Debt Securities held to maturity less than twelve months, gross unrealized losses (12,662) (668)
Debt securities, held to maturity, Less Than Twelve Months, Fair Value 295,383 123,698
Debt Securities Held To Maturity, Twelve Months or More, Gross Unrealized Losses (23,537) 0
U.S. Treasury Securities 175,570 0
Debt Securities, Held To Maturity , Gross Unrealized Losses (36,197) (668)
Debt Securities,Held To Maturity, Fair Value 470,953 123,698
US Government Agencies Debt Securities [Member]    
Debt securities available for sale, less than twelve months, gross unrealized losses 0  
Debt securities available for sale, less than twelve months, fair value 9  
Debt Securities Available for Sale, Twelve Months or More, Gross Unrealized Losses 0  
Debt Securities, Available for Sale, Twelve Months or More, Fair Value 0  
Debt Securities, Available for Sale, Gross Unrealized Losses 0  
Debt Securities, Available for Sale, Fair Value 9  
Collateralized Mortgage-Backed Securities [Member]    
Debt securities available for sale, less than twelve months, gross unrealized losses (3,473) (2,685)
Debt securities available for sale, less than twelve months, fair value 60,234 303,297
Debt Securities Available for Sale, Twelve Months or More, Gross Unrealized Losses (29,309) 0
Debt Securities, Available for Sale, Twelve Months or More, Fair Value 189,109 0
Debt Securities, Available for Sale, Gross Unrealized Losses (32,782) (2,685)
Debt Securities, Available for Sale, Fair Value 249,343 303,297
Debt Securities held to maturity less than twelve months, gross unrealized losses (31,367) (1,271)
Debt securities, held to maturity, Less Than Twelve Months, Fair Value 278,746 134,192
Debt Securities Held To Maturity, Twelve Months or More, Gross Unrealized Losses (29,592) 0
U.S. Treasury Securities 174,842 0
Debt Securities, Held To Maturity , Gross Unrealized Losses (60,960) (1,271)
Debt Securities,Held To Maturity, Fair Value 453,588 134,192
US States and Political Subdivisions Debt Securities [Member]    
Debt securities available for sale, less than twelve months, gross unrealized losses (186) (61)
Debt securities available for sale, less than twelve months, fair value 5,283 5,198
Debt Securities Available for Sale, Twelve Months or More, Gross Unrealized Losses (1,411) (9)
Debt Securities, Available for Sale, Twelve Months or More, Fair Value 7,880 228
Debt Securities, Available for Sale, Gross Unrealized Losses (1,597) (70)
Debt Securities, Available for Sale, Fair Value 13,163 5,426
Debt Securities held to maturity less than twelve months, gross unrealized losses (544) (10)
Debt securities, held to maturity, Less Than Twelve Months, Fair Value 4,443 482
Debt Securities Held To Maturity, Twelve Months or More, Gross Unrealized Losses (474) 0
U.S. Treasury Securities 2,330 0
Debt Securities, Held To Maturity , Gross Unrealized Losses (1,018) (10)
Debt Securities,Held To Maturity, Fair Value 6,773 482
Corporate Debt Securities [Member]    
Debt securities available for sale, less than twelve months, gross unrealized losses (18,566) (647)
Debt securities available for sale, less than twelve months, fair value 304,254 61,677
Debt Securities Available for Sale, Twelve Months or More, Gross Unrealized Losses (9,589) 0
Debt Securities, Available for Sale, Twelve Months or More, Fair Value 63,411 0
Debt Securities, Available for Sale, Gross Unrealized Losses (28,155) (647)
Debt Securities, Available for Sale, Fair Value $ 367,666 $ 61,677