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Note 3 - Securities - Securities With Unrealized Losses (Details) $ in Thousands | Mar. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
--- | --- | ---
Count, less than 12 months | 29 | 180
Collateralized mortgage obligations - residential, fair value | $ 46,579 | $ 148,388
Unrealized loss, less than 12 months | $ (396) | $ (4,581)
Count, 12 months or more | 186 | 54
Fair value, 12 months or more | $ 119,855 | $ 58,835
Unrealized loss, 12 months or more | $ (5,795) | $ (3,707)
Count, total | 215 | 234
Fair value, total | $ 166,434 | $ 207,223
Unrealized loss, total | $ (6,191) | $ (8,288)
US States and Political Subdivisions Debt Securities [Member] |  |
Count, less than 12 months | 0 | 1
Collateralized mortgage obligations - residential, fair value | $ 0 | $ 225
Unrealized loss, less than 12 months | $ 0 | $ (15)
Count, 12 months or more | 1 | 0
Fair value, 12 months or more | $ 227 | $ 0
Unrealized loss, 12 months or more | $ (13) | $ 0
Count, total | 1 | 1
Fair value, total | $ 227 | $ 225
Unrealized loss, total | $ (13) | $ (15)
US Treasury Securities [Member] |  |
Count, less than 12 months | 2 | 147
Collateralized mortgage obligations - residential, fair value | $ 4,170 | $ 104,439
Unrealized loss, less than 12 months | $ (53) | $ (4,104)
Count, 12 months or more | 179 | 53
Fair value, 12 months or more | $ 118,195 | $ 58,664
Unrealized loss, 12 months or more | $ (5,719) | $ (3,699)
Count, total | 181 | 200
Fair value, total | $ 122,365 | $ 163,103
Unrealized loss, total | $ (5,772) | $ (7,803)
US Government-sponsored Enterprises Debt Securities [Member] |  |
Count, less than 12 months | 9 | 9
Collateralized mortgage obligations - residential, fair value | $ 39,739 | $ 39,699
Unrealized loss, less than 12 months | $ (261) | $ (301)
Count, 12 months or more | 0 | 0
Fair value, 12 months or more | $ 0 | $ 0
Unrealized loss, 12 months or more | $ 0 | $ 0
Count, total | 9 | 9
Fair value, total | $ 39,739 | $ 39,699
Unrealized loss, total | $ (261) | $ (301)
Residential Mortgage-Backed Securities [Member] |  |
Count, less than 12 months | 14 | 18
Collateralized mortgage obligations - residential, fair value | $ 2,414 | $ 3,016
Unrealized loss, less than 12 months | $ (78) | $ (143)
Count, 12 months or more | 2 | 0
Fair value, 12 months or more | $ 539 | $ 0
Unrealized loss, 12 months or more | $ (46) | $ 0
Count, total | 16 | 18
Fair value, total | $ 2,953 | $ 3,016
Unrealized loss, total | $ (124) | $ (143)
Collateralized Mortgage-Backed Securities [Member] |  |
Count, less than 12 months | 4 | 5
Collateralized mortgage obligations - residential, fair value | $ 256 | $ 1,009
Unrealized loss, less than 12 months | $ (4) | $ (18)
Count, 12 months or more | 4 | 1
Fair value, 12 months or more | $ 894 | $ 171
Unrealized loss, 12 months or more | $ (17) | $ (8)
Count, total | 8 | 6
Fair value, total | $ 1,150 | $ 1,180
Unrealized loss, total | $ (21) | $ (26)

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