Quarterly report pursuant to Section 13 or 15(d)

Note 2 - Securities - Schedule of Securities with Unrealized Losses (Details)

v3.23.2
Note 2 - Securities - Schedule of Securities with Unrealized Losses (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Available-for-sale, fair value, less than 12 months $ 171,358 $ 322,393
Available-for-sale, accumulated loss, less than 12 months (3,866) (15,211)
Available-for-sale, fair value, more than 12 months 333,226 142,056
Available-for-sale, accumulated loss, more than 12 months (35,192) (24,932)
Available-for-sale, fair value 504,584 464,449
Available-for-sale, accumulated loss (39,058) (40,143)
Held-to-maturity, fair value, less than 12 months 39,545 295,301
Held-to-maturity, accumulated loss, less than 12 months (654) (15,991)
Held-to-maturity, fair value, more than 12 months 256,565 21,721
Held-to-maturity, accumulated loss, more than 12 months (14,591) (539)
Held-for-maturity, fair value 296,110 317,022
Held-for-sale, accumulated loss (15,245) (16,530)
US Treasury and Government [Member]    
Available-for-sale, fair value, less than 12 months 53,921 144,796
Available-for-sale, accumulated loss, less than 12 months (1,053) (6,230)
Available-for-sale, fair value, more than 12 months 182,058 66,008
Available-for-sale, accumulated loss, more than 12 months (14,313) (10,080)
Available-for-sale, fair value 235,979 210,804
Available-for-sale, accumulated loss (15,366) (16,310)
US Government Agencies Debt Securities [Member]    
Available-for-sale, fair value, less than 12 months 50,238 64,427
Available-for-sale, accumulated loss, less than 12 months (1,450) (4,789)
Available-for-sale, fair value, more than 12 months 65,911 41,340
Available-for-sale, accumulated loss, more than 12 months (13,378) (9,558)
Available-for-sale, fair value 116,149 105,767
Available-for-sale, accumulated loss (14,828) (14,347)
Nontaxable Municipal Bonds [Member]    
Available-for-sale, fair value, less than 12 months 30,453 31,337
Available-for-sale, accumulated loss, less than 12 months (369) (498)
Available-for-sale, fair value, more than 12 months 5,451 0
Available-for-sale, accumulated loss, more than 12 months (243) 0
Available-for-sale, fair value 35,904 31,337
Available-for-sale, accumulated loss (612) (498)
Held-to-maturity, fair value, less than 12 months 10,527 57,671
Held-to-maturity, accumulated loss, less than 12 months (88) (2,314)
Held-to-maturity, fair value, more than 12 months 47,479 21,721
Held-to-maturity, accumulated loss, more than 12 months (1,995) (539)
Held-for-maturity, fair value 58,006 79,392
Held-for-sale, accumulated loss (2,083) (2,853)
Taxable Municipal Bonds [Member]    
Available-for-sale, fair value, less than 12 months 31,301 71,165
Available-for-sale, accumulated loss, less than 12 months (833) (3,337)
Available-for-sale, fair value, more than 12 months 73,536 33,452
Available-for-sale, accumulated loss, more than 12 months (6,998) (5,188)
Available-for-sale, fair value 104,837 104,617
Available-for-sale, accumulated loss (7,831) (8,525)
Corporate Bonds And Other Debt Securities [Member]    
Available-for-sale, fair value, less than 12 months 5,445 10,668
Available-for-sale, accumulated loss, less than 12 months (161) (357)
Available-for-sale, fair value, more than 12 months 6,270 1,256
Available-for-sale, accumulated loss, more than 12 months (260) (106)
Available-for-sale, fair value 11,715 11,924
Available-for-sale, accumulated loss (421) (463)
US Treasury Securities [Member]    
Held-to-maturity, fair value, less than 12 months 29,018 237,630
Held-to-maturity, accumulated loss, less than 12 months (566) (13,677)
Held-to-maturity, fair value, more than 12 months 209,086 0
Held-to-maturity, accumulated loss, more than 12 months (12,596) 0
Held-for-maturity, fair value 238,104 237,630
Held-for-sale, accumulated loss $ (13,162) $ (13,677)