Quarterly report [Sections 13 or 15(d)]

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

v3.26.1
Note 4 - Securities - Investment Securities Continuous Unrealized Loss Position (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Debt securities available for sale, less than twelve months, gross unrealized losses $ 2,255 $ 984
Debt securities available for sale, less than twelve months, fair value 236,484 77,583
Debt Securities Available for Sale, Twelve Months or More, Gross Unrealized Losses 7,026 9,632
Debt Securities, Available for Sale, Twelve Months or More, Fair Value 153,433 187,749
Debt Securities, Available for Sale, Gross Unrealized Losses 9,281 10,616
Debt Securities, Available for Sale, Fair Value 389,917 265,332
Debt securities held to maturity, less than twelve months, gross unrealized losses 6 34
Debt securities held to maturity, less than twelve months, fair value 2,360 2,954
Debt securities held to maturity, more than twelve months, gross unrealized losses 45,639 44,250
Debt securities held to maturity, more than twelve months, fair value 548,161 569,943
Debt securities held to maturity, gross unrealized losses 45,645 44,284
Debt securities held to maturity, fair value 550,521 572,897
Total (45,645) (44,284)
Collateralized Mortgage-Backed Securities [Member]    
Debt securities available for sale, less than twelve months, gross unrealized losses 764 (0)
Debt securities available for sale, less than twelve months, fair value 118,999 0
Debt Securities Available for Sale, Twelve Months or More, Gross Unrealized Losses 825 852
Debt Securities, Available for Sale, Twelve Months or More, Fair Value 17,451 22,662
Debt Securities, Available for Sale, Gross Unrealized Losses 1,589 852
Debt Securities, Available for Sale, Fair Value 136,450 22,662
Debt securities held to maturity, less than twelve months, gross unrealized losses 6 (0)
Debt securities held to maturity, less than twelve months, fair value 2,360 0
Debt securities held to maturity, more than twelve months, gross unrealized losses 36,327 34,395
Debt securities held to maturity, more than twelve months, fair value 300,229 325,307
Debt securities held to maturity, gross unrealized losses 36,333 34,395
Debt securities held to maturity, fair value 302,589 325,307
Total (36,333) (34,395)
US States and Political Subdivisions Debt Securities [Member]    
Debt securities available for sale, less than twelve months, gross unrealized losses (0) (0)
Debt securities available for sale, less than twelve months, fair value 0 0
Debt Securities Available for Sale, Twelve Months or More, Gross Unrealized Losses 541 554
Debt Securities, Available for Sale, Twelve Months or More, Fair Value 9,372 9,363
Debt Securities, Available for Sale, Gross Unrealized Losses 541 554
Debt Securities, Available for Sale, Fair Value 9,372 9,363
Debt securities held to maturity, less than twelve months, gross unrealized losses (0) 34
Debt securities held to maturity, less than twelve months, fair value 0 2,954
Debt securities held to maturity, more than twelve months, gross unrealized losses 292 266
Debt securities held to maturity, more than twelve months, fair value 7,222 4,604
Debt securities held to maturity, gross unrealized losses 292 300
Debt securities held to maturity, fair value 7,222 7,558
Total (292) (300)
Corporate Debt Securities [Member]    
Debt securities available for sale, less than twelve months, gross unrealized losses 1,491 984
Debt securities available for sale, less than twelve months, fair value 117,485 77,583
Debt Securities Available for Sale, Twelve Months or More, Gross Unrealized Losses 5,660 8,226
Debt Securities, Available for Sale, Twelve Months or More, Fair Value 126,610 155,724
Debt Securities, Available for Sale, Gross Unrealized Losses 7,151 9,210
Debt Securities, Available for Sale, Fair Value 244,095 233,307
US Treasury Securities [Member]    
Debt securities held to maturity, less than twelve months, gross unrealized losses (0) (0)
Debt securities held to maturity, less than twelve months, fair value 0 0
Debt securities held to maturity, more than twelve months, gross unrealized losses 9,020 9,589
Debt securities held to maturity, more than twelve months, fair value 240,710 240,032
Debt securities held to maturity, gross unrealized losses 9,020 9,589
Debt securities held to maturity, fair value 240,710 240,032
Total $ (9,020) $ (9,589)