Annual report pursuant to Section 13 and 15(d)

Note 3 - Securities - Securities with Gross Unrealized Losses Not Recognized in Income (Details)

v3.23.1
Note 3 - Securities - Securities with Gross Unrealized Losses Not Recognized in Income (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Estimated fair value, less than 12 months $ 204,281 $ 205,351
Unrealized losses, less than 12 months (40,890) (3,916)
Estimated fair value, 12 months or longer 163,050 9,101
Unrealized losses, 12 months or longer (43,698) (1,545)
Estimated fair value, total 367,331 214,452
Unrealized losses, total $ (84,588) $ (5,461)
percentage 99.00% 40.70%
Number of securities, unrealized losses, less than 12 months 311 133
Number of securities, unrealized losses, 12 months or longer 135 5
Number of securitiesunrealized losses, total 446 138
US Government-sponsored Enterprises Debt Securities [Member]    
Estimated fair value, less than 12 months $ 0 $ 8,669
Unrealized losses, less than 12 months 0 (214)
Estimated fair value, 12 months or longer 7,625 0
Unrealized losses, 12 months or longer (1,258) 0
Estimated fair value, total 7,625 8,669
Unrealized losses, total $ (1,258) $ (214)
percentage 100.00% 100.00%
Collateralized Mortgage Obligations and Residential Mortgage Backed Securities [Member]    
Estimated fair value, less than 12 months $ 32,700 $ 126,373
Unrealized losses, less than 12 months (4,955) (3,175)
Estimated fair value, 12 months or longer 101,416 8,109
Unrealized losses, 12 months or longer (23,929) (364)
Estimated fair value, total 134,116 134,482
Unrealized losses, total $ (28,884) $ (3,539)
percentage 100.00% 72.80%
US States and Political Subdivisions Debt Securities [Member]    
Estimated fair value, less than 12 months $ 171,581 $ 70,309
Unrealized losses, less than 12 months (35,935) (527)
Estimated fair value, 12 months or longer 52,961 0
Unrealized losses, 12 months or longer (17,386) 0
Estimated fair value, total 224,542 70,309
Unrealized losses, total $ (53,321) $ (527)
percentage 98.60% 21.20%
Collateralized Debt Obligations [Member]    
Estimated fair value, less than 12 months $ 0 $ 0
Unrealized losses, less than 12 months 0 0
Estimated fair value, 12 months or longer 1,048 992
Unrealized losses, 12 months or longer (1,125) (1,181)
Estimated fair value, total 1,048 992
Unrealized losses, total $ (1,125) $ (1,181)
percentage 100.00% 100.00%