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Note 3 - Available-for-sale Securities (Tables) | 12 Months Ended
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Dec. 31, 2016
Notes Tables |
Available-for-sale Securities [Table Text Block] |
(In thousands) |  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
December 31, 2016: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U. S. Government agency mortgage-backed securities |  | $ | 10,624 |  |  |  | 9 |  |  |  | 192 |  |  |  | 10,441 |
Corporate bonds |  |  | 9,000 |  |  |  | - |  |  |  | 39 |  |  |  | 8,961 |
Subordinated Notes |  |  | 5,000 |  |  |  | 26 |  |  |  | - |  |  |  | 5,026 |
|  | $ | 24,624 |  |  |  | 35 |  |  |  | 231 |  |  |  | 24,428 |
December 31, 2015: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U. S. Government agency mortgage-backed securities |  | $ | 13,625 |  |  |  | - |  |  |  | 212 |  |  |  | 13,413 |
Corporate bonds |  |  | 9,000 |  |  |  | 71 |  |  |  | 61 |  |  |  | 9,010 |
U. S. Government agency bonds |  |  | 5,000 |  |  |  | - |  |  |  | 46 |  |  |  | 4,954 |
Subordinated Notes |  |  | 2,000 |  |  |  | - |  |  |  | - |  |  |  | 2,000 |
|  | $ | 29,625 |  |  |  | 71 |  |  |  | 319 |  |  |  | 29,377 |
Schedule of Unrealized Loss on Investments [Table Text Block] |
(In thousands) |  | Less than 12 Months |  |  | 12 Months or More |  |  | Total |
December 31, 2016: |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |
U. S. Government agency mortgage-backed securities |  | $ | 5,969 |  |  |  | 144 |  |  |  | 3,356 |  |  |  | 48 |  |  |  | 9,325 |  |  |  | 192 |
Corporate bonds |  |  | - |  |  |  | - |  |  |  | 5,961 |  |  |  | 39 |  |  |  | 5,961 |  |  |  | 39 |
|  | $ | 5,969 |  |  |  | 144 |  |  |  | 9,317 |  |  |  | 87 |  |  |  | 15,286 |  |  |  | 231 |
December 31, 2015: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U. S. Government agency bonds |  | $ | 4,954 |  |  |  | 46 |  |  |  | - |  |  |  | - |  |  |  | 4,954 |  |  |  | 46 |
U. S. Government agency mortgage-backed securities |  |  | 2,863 |  |  |  | 42 |  |  |  | 10,550 |  |  |  | 170 |  |  |  | 13,413 |  |  |  | 212 |
Corporate bonds |  |  | - |  |  |  | - |  |  |  | 5,939 |  |  |  | 61 |  |  |  | 5,939 |  |  |  | 61 |
|  | $ | 7,817 |  |  |  | 88 |  |  |  | 16,489 |  |  |  | 231 |  |  |  | 24,306 |  |  |  | 319 |
Investments Classified by Contractual Maturity Date [Table Text Block] |
(In thousands) |  | Amortized Cost |  |  | Fair Value |
December 31, 2016: |  | Due Within 5 years |  |  | Due After 5 years through 10 years |  |  | Due After 10 years |  |  | Total |  |  | Due Within 5 years |  |  | Due After 5 years through 10 years |  |  | Due After 10 years |  |  | Total |
Corporate bonds |  | $ | 9,000 |  |  |  | - |  |  |  | - |  |  |  | 9,000 |  |  |  | 8,961 |  |  |  | - |  |  |  | - |  |  |  | 8,961 |
Subordinated Notes |  |  | 1,000 |  |  |  | 4,000 |  |  |  | - |  |  |  | 5,000 |  |  |  | 1,026 |  |  |  | 4,000 |  |  |  | - |  |  |  | 5,026 |
Available-for-sale securities with single maturity dates |  |  | 10,000 |  |  |  | 4,000 |  |  |  | - |  |  |  | 14,000 |  |  |  | 9,987 |  |  |  | 4,000 |  |  |  | - |  |  |  | 13,987 |
U. S. Government agency mortgage-backed securities |  |  | - |  |  |  | 2,132 |  |  |  | 8,492 |  |  |  | 10,624 |  |  |  | - |  |  |  | 2,106 |  |  |  | 8,335 |  |  |  | 10,441 |
|  | $ | 10,000 |  |  |  | 6,132 |  |  |  | 8,492 |  |  |  | 24,624 |  |  |  | 9,987 |  |  |  | 6,106 |  |  |  | 8,335 |  |  |  | 24,428 |
December 31, 2015: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds |  | $ | - |  |  |  | 9,000 |  |  |  | - |  |  |  | 9,000 |  |  |  | - |  |  |  | 9,010 |  |  |  | - |  |  |  | 9,010 |
U. S. Government agency bonds |  |  | - |  |  |  | 5,000 |  |  |  | - |  |  |  | 5,000 |  |  |  | - |  |  |  | 4,954 |  |  |  | - |  |  |  | 4,954 |
Subordinated Notes |  |  | - |  |  |  | 2,000 |  |  |  | - |  |  |  | 2,000 |  |  |  | - |  |  |  | 2,000 |  |  |  | - |  |  |  | 2,000 |
Available-for-sale securities with single maturity dates |  |  | - |  |  |  | 16,000 |  |  |  | - |  |  |  | 16,000 |  |  |  | - |  |  |  | 15,964 |  |  |  | - |  |  |  | 15,964 |
U. S. Government agency mortgage-backed securities |  |  | - |  |  |  | 2,905 |  |  |  | 10,720 |  |  |  | 13,625 |  |  |  | - |  |  |  | 2,863 |  |  |  | 10,550 |  |  |  | 13,413 |
|  | $ | - |  |  |  | 18,905 |  |  |  | 10,720 |  |  |  | 29,625 |  |  |  | - |  |  |  | 18,827 |  |  |  | 10,550 |  |  |  | 29,377 |

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- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27337-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27198-111563 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27161-111563 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27357-111563 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563 + Details
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- Definition For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563 + Details
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