Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Securities - Investment Securities Continuous Unrealized Loss Position (Details)

v3.22.1
Note 4 - Securities - Investment Securities Continuous Unrealized Loss Position (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Debt securities available for sale, less than twelve months, gross unrealized losses $ (19,655) $ (3,393)
Debt securities available for sale, less than twelve months, fair value 479,129 370,172
Debt Securities Available for Sale, Twelve Months or More, Gross Unrealized Losses (3,297) (9)
Debt Securities, Available for Sale, Twelve Months or More, Fair Value 46,186 228
Debt Securities, Available for Sale, Gross Unrealized Losses (22,953) (3,402)
Debt Securities, Available for Sale, Fair Value 525,315 370,400
Debt Securities held to maturity less than twelve months, gross unrealized losses (32,910) (1,949)
Debt securities, held to maturity, Less Than Twelve Months, Fair Value 699,541 258,372
Debt Securities Held To Maturity, Twelve Months or More, Gross Unrealized Losses (1,446) 0
U.S. Treasury Securities 14,767 0
Debt Securities, Held To Maturity , Gross Unrealized Losses (34,356) (1,949)
Debt Securities,Held To Maturity, Fair Value 714,308 258,372
US Treasury Securities [Member]    
Debt securities available for sale, less than twelve months, gross unrealized losses (9)  
Debt securities available for sale, less than twelve months, fair value 2,997  
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 (9)  
Debt Securities, Available for Sale, Fair Value 2,997  
Debt Securities held to maturity less than twelve months, gross unrealized losses (14,370) (668)
Debt securities, held to maturity, Less Than Twelve Months, Fair Value 284,429 123,698
Debt Securities Held To Maturity, Twelve Months or More, Gross Unrealized Losses 0 0
U.S. Treasury Securities 0 0
Debt Securities, Held To Maturity , Gross Unrealized Losses (14,370) (668)
Debt Securities,Held To Maturity, Fair Value 284,429 123,698
Collateralized Mortgage-Backed Securities [Member]    
Debt securities available for sale, less than twelve months, gross unrealized losses (13,930) (2,685)
Debt securities available for sale, less than twelve months, fair value 273,725 303,297
Debt Securities Available for Sale, Twelve Months or More, Gross Unrealized Losses (3,254) 0
Debt Securities, Available for Sale, Twelve Months or More, Fair Value 45,759 0
Debt Securities, Available for Sale, Gross Unrealized Losses (17,185) (2,685)
Debt Securities, Available for Sale, Fair Value 319,485 303,297
Debt Securities held to maturity less than twelve months, gross unrealized losses (18,096) (1,271)
Debt securities, held to maturity, Less Than Twelve Months, Fair Value 407,781 134,192
Debt Securities Held To Maturity, Twelve Months or More, Gross Unrealized Losses (1,446) 0
U.S. Treasury Securities 14,767 0
Debt Securities, Held To Maturity , Gross Unrealized Losses (19,542) (1,271)
Debt Securities,Held To Maturity, Fair Value 422,549 134,192
US States and Political Subdivisions Debt Securities [Member]    
Debt securities available for sale, less than twelve months, gross unrealized losses (664) (61)
Debt securities available for sale, less than twelve months, fair value 11,203 5,198
Debt Securities Available for Sale, Twelve Months or More, Gross Unrealized Losses (43) (9)
Debt Securities, Available for Sale, Twelve Months or More, Fair Value 427 228
Debt Securities, Available for Sale, Gross Unrealized Losses (707) (70)
Debt Securities, Available for Sale, Fair Value 11,630 5,426
Debt Securities held to maturity less than twelve months, gross unrealized losses (444) (10)
Debt securities, held to maturity, Less Than Twelve Months, Fair Value 7,331 482
Debt Securities Held To Maturity, Twelve Months or More, Gross Unrealized Losses 0 0
U.S. Treasury Securities 0 0
Debt Securities, Held To Maturity , Gross Unrealized Losses (444) (10)
Debt Securities,Held To Maturity, Fair Value 7,331 482
Corporate Debt Securities [Member]    
Debt securities available for sale, less than twelve months, gross unrealized losses (5,052) (647)
Debt securities available for sale, less than twelve months, fair value 191,204 61,677
Debt Securities Available for Sale, Twelve Months or More, Gross Unrealized Losses 0 0
Debt Securities, Available for Sale, Twelve Months or More, Fair Value 0 0
Debt Securities, Available for Sale, Gross Unrealized Losses (5,052) (647)
Debt Securities, Available for Sale, Fair Value $ 191,204 $ 61,677