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Note B - Securities - Securities by Contractual Maturity (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Due in one year or less, available for sale, amortized cost | $ 3,399 |
Due in one year or less, available for sale, fair value | 3,413 |
Due in one year or less, held to maturity, amortized cost | 641 |
Due in one year or less, held to maturity, fair value | 644 |
Due in over one to five years, available for sale, amortized cost | 13,180 |
Due in over one to five years, available for sale, fair value | 13,323 |
Due in over one to five years, held to maturity, amortized cost | 6,652 |
Due in over one to five years, held to maturity, fair value | 6,813 |
Due in over five to ten years, available for sale, amortized cost |  |
Due in over five to ten years, available for sale, fair value |  |
Due in over five to ten years, held to maturity, amortized cost | 4,738 |
Due in over five to ten years, held to maturity, fair value | 4,945 |
Due after ten years, available for sale, amortized cost |  |
Due after ten years, available for sale, fair value |  |
Due after ten years, held to maturity, amortized cost |  |
Due after ten years, held to maturity, fair value |  |
Agency mortgage-backed securities, residential, available for sale, amortized cost | 88,071 |
Agency mortgage-backed securities, residential, available for sale, fair value | 88,582 |
Agency mortgage-backed securities, residential, held to maturity, amortized cost | 2 |
Agency mortgage-backed securities, residential, held to maturity, fair value | 2 |
Total debt securities, available for sale, amortized cost | 104,650 | $ 104,867
Total debt securities, available for sale, fair value | 105,318 | 102,164
Total debt securities, held to maturity, amortized cost | 12,033 | 15,816
Total debt securities, held to maturity, fair value | $ 12,404 | $ 16,234

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