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NOTE 2 - INVESTMENT SECURITIES - Securities by Contractual Maturity (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Securities held to maturity: |  |
Securities held to maturity, due in one year or less, amortized cost | $ 2,060 |
Securities held to maturity, due in one year or less, fair value | 2,064 |
Securities held to maturity, due after one year through five years, amortized cost | 28,228 |
Securities held to maturity, due after one year through five years, fair value | 28,544 |
Securities held to maturity, due after five years, amortized cost | 365,014 |
Securities held to maturity, due after five years, fair value | 375,763 |
Securities held to maturity, amortized cost | 395,302 |
Securities held to maturity, fair value | 406,371 | $ 400,770
Securities available for sale: |  |
Securities available for sale, due in one year or less, amortized cost | 1,375 |
Securities available for sale, Due in one year or less, fair value | 1,387 |
Securities available for sale, due after one year through five years, amortized cost | 52,247 |
Securities available for sale, Due after one year through five years, fair value | 51,874 |
Securities available for sale, due after five years, amortized cost | 44,858 |
Securities available for sale, Due after five years, fair value | 45,494 |
Securities available for sale, single maturity, amortized cost | 98,480 |
Securities available for sale, single maturity, fair value | 98,755 |
Securities available for sale, amortized cost | 261,918 |
Securities available for sale, fair value | 260,447 |
Callable Securities [Member] |  |
Securities available for sale: |  |
Securities available for sale, callable, amortized cost | 59,313 |
Securities available for sale, callable, fair value | 59,654 |
US States and Political Subdivisions Debt Securities |  |
Securities held to maturity: |  |
Securities held to maturity, fair value | 405,322 | 399,721
US States and Political Subdivisions Debt Securities | Callable Securities [Member] |  |
Securities held to maturity: |  |
Securities held to maturity, callable, amortized cost | 205,929 |
Securities held to maturity, callable, fair value | 209,592 |
Securities available for sale: |  |
Securities available for sale, callable, amortized cost | 47,809 |
Securities available for sale, callable, fair value | 48,158 |
U.S. govt. sponsored agency securities | Callable Securities [Member] |  |
Securities available for sale: |  |
Securities available for sale, callable, amortized cost | 4,999 |
Securities available for sale, callable, fair value | 4,955 |
Residential Mortgage Backed Securities |  |
Securities available for sale: |  |
Securities available for sale, callable, amortized cost | 163,438 |
Securities available for sale, callable, fair value | 161,692 |
Other Securities |  |
Securities held to maturity: |  |
Securities held to maturity, fair value | 1,049 | $ 1,049
Other Securities | Callable Securities [Member] |  |
Securities available for sale: |  |
Securities available for sale, callable, amortized cost | 6,505 |
Securities available for sale, callable, fair value | $ 6,541 |

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