Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Securities - Securities with Gross Unrealized Losses Not Recognized in Income (Details)

v3.22.1
Note 4 - Securities - Securities with Gross Unrealized Losses Not Recognized in Income (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Estimated fair value, less than 12 months $ 332,214 $ 205,351
Unrealized losses, less than 12 months (35,046) (3,916)
Estimated fair value, 12 months or longer 72,560 9,101
Unrealized losses, 12 months or longer (9,092) (1,545)
Estimated fair value, total 404,774 214,452
Unrealized losses, total $ (44,138) $ (5,461)
percentage 87.20% 40.70%
Number of securities, unrealized losses, less than 12 months 384 133
Number of securities, unrealized losses, 12 months or longer 33 5
Number of securitiesunrealized losses, total 417 138
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 8,202 0
Unrealized losses, 12 months or longer (681) 0
Estimated fair value, total 8,202 8,669
Unrealized losses, total $ (681) $ (214)
percentage 100.00% 100.00%
Collateralized Mortgage Obligations and Residential Mortgage Backed Securities [Member]    
Estimated fair value, less than 12 months $ 99,994 $ 126,373
Unrealized losses, less than 12 months (7,368) (3,175)
Estimated fair value, 12 months or longer 60,792 8,109
Unrealized losses, 12 months or longer (6,985) (364)
Estimated fair value, total 160,786 134,482
Unrealized losses, total $ (14,353) $ (3,539)
percentage 98.00% 72.80%
US States and Political Subdivisions Debt Securities [Member]    
Estimated fair value, less than 12 months $ 232,220 $ 70,309
Unrealized losses, less than 12 months (27,678) (527)
Estimated fair value, 12 months or longer 2,594 0
Unrealized losses, 12 months or longer (225) 0
Estimated fair value, total 234,814 70,309
Unrealized losses, total $ (27,903) $ (527)
percentage 80.70% 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 972 992
Unrealized losses, 12 months or longer (1,201) (1,181)
Estimated fair value, total 972 992
Unrealized losses, total $ (1,201) $ (1,181)
percentage 100.00% 100.00%