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Note C - Securities - Securities by Contractual Maturity (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Due in one year or less, available for sale, amortized cost | $ 4,601 |
Due in one year or less, available for sale, fair value | 4,593 |
Due in one year or less, held to maturity, amortized cost | 809 |
Due in one year or less, held to maturity, fair value | 819 |
Due in one to five years, available for sale, amortized cost | 9,021 |
Due in one to five years, available for sale, fair value | 8,880 |
Due in one to five years, held to maturity, amortized cost | 7,356 |
Due in one to five years, held to maturity, fair value | 7,559 |
Due in five to ten years, available for sale, amortized cost |  |
Due in five to ten years, available for sale, fair value |  |
Due in five to ten years, held to maturity, amortized cost | 9,204 |
Due in five to ten years, held to maturity, fair value | 9,497 |
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 | 208 |
Due after ten years, held to maturity, fair value | 200 |
Agency mortgage-backed securities, residential, available for sale, amortized cost | 88,833 |
Agency mortgage-backed securities, residential, available for sale, fair value | 87,652 |
Agency mortgage-backed securities, residential, held to maturity, amortized cost | 4 |
Agency mortgage-backed securities, residential, held to maturity, fair value | 4 |
Total debt securities, available for sale, amortized cost | 102,455 |
Total debt securities, available for sale, fair value | 101,125 |
Total debt securities, held to maturity, amortized cost | 17,581 | $ 18,665
Total debt securities, held to maturity, fair value | $ 18,079 | $ 19,171

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- Definition Amount after adjustments of available-for-sale debt securities at cost, maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27198-111563 + Details
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- Definition Carrying amount of debt securities accounted for as held-to-maturity, net of adjustments including, but not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized, and fair value hedge accounting adjustments, over several maturity groupings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (d),(f) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 + Details
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- Definition Fair value of investments in debt securities classified as held-to-maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 + Details
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