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Note 3 - Investment Securities (Tables) | 9 Months Ended
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Sep. 30, 2015
Disclosure Text Block Supplement [Abstract] |
Marketable Securities [Table Text Block] |
(In thousands) |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
September 30, 2015 |  |  |  |  |  |  |  |
Securities available for sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency mortgage-backed securities |  | $ | 34,495 |  |  | $ | 281 |  |  | $ | 48 |  |  | $ | 34,728 |
Agency CMO |  |  | 10,341 |  |  |  | 61 |  |  |  | 57 |  |  |  | 10,345 |
Other debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency notes and bonds |  |  | 16,751 |  |  |  | 43 |  |  |  | 2 |  |  |  | 16,792 |
Municipal obligations |  |  | 31,825 |  |  |  | 994 |  |  |  | 79 |  |  |  | 32,740 |
Subtotal - debt securities |  |  | 93,412 |  |  |  | 1,379 |  |  |  | 186 |  |  |  | 94,605 |
Mutual Funds |  |  | 605 |  |  |  | 0 |  |  |  | - |  |  |  | 605 |
Total Securities available for sale |  | $ | 94,017 |  |  | $ | 1,379 |  |  | $ | 186 |  |  | $ | 95,210 |
Securities held to maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency mortgage-backed securities |  | $ | 5 |  |  | $ | 0 |  |  | $ | 0 |  |  | $ | 5 |
Total securities held to maturity |  | $ | 5 |  |  | $ | 0 |  |  | $ | 0 |  |  | $ | 5 |
December 31, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Securities available for sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency mortgage-backed securities |  | $ | 32,135 |  |  | $ | 240 |  |  | $ | 79 |  |  | $ | 32,296 |
Agency CMO |  |  | 14,461 |  |  |  | 74 |  |  |  | 150 |  |  |  | 14,385 |
Other debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency notes and bonds |  |  | 18,136 |  |  |  | 32 |  |  |  | 48 |  |  |  | 18,120 |
Municipal obligations |  |  | 32,178 |  |  |  | 1,242 |  |  |  | 78 |  |  |  | 33,342 |
Subtotal - debt securities |  |  | 96,910 |  |  |  | 1,588 |  |  |  | 355 |  |  |  | 98,143 |
Mutual Funds |  |  | 2,083 |  |  |  | 0 |  |  |  | 0 |  |  |  | 2,083 |
Total Securities available for sale |  | $ | 98,993 |  |  | $ | 1,588 |  |  | $ | 355 |  |  | $ | 100,226 |
Securities held to maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency mortgage-backed securities |  | $ | 6 |  |  | $ | 0 |  |  | $ | 0 |  |  | $ | 6 |
Total securities held to maturity |  | $ | 6 |  |  | $ | 0 |  |  | $ | 0 |  |  | $ | 6 |
Investments Classified by Contractual Maturity Date [Table Text Block] |
|  | Securities Available for Sale |  | Securities Held to Maturity
|  | Amortized Cost |  | Fair Value |  | Amortized Cost |  | Fair Value
(In thousands) |  |  |  |  |  |  |  |
Due in one year or less |  | $ | 1,513 |  |  | $ | 1,516 |  |  | $ | 0 |  |  | $ | 0 |
Due after one year through five years |  |  | 18,298 |  |  |  | 18,434 |  |  |  | 0 |  |  |  | 0 |
Due after five years through ten years |  |  | 15,809 |  |  |  | 16,195 |  |  |  |  |  |  |  |  |
Due after ten years |  |  | 12,956 |  |  |  | 13,387 |  |  |  | 0 |  |  |  | 0 |
|  |  | 48,576 |  |  |  | 49,532 |  |  |  | 0 |  |  |  | 0 |
Mortgage-backed securities and CMO |  |  | 44,836 |  |  |  | 45,073 |  |  |  | 5 |  |  |  | 5 |
|  | $ | 93,412 |  |  | $ | 94,605 |  |  | $ | 5 |  |  | $ | 5 |
Schedule of Unrealized Loss on Investments [Table Text Block] |
|  | Number of Investment Positions |  | Fair Value |  | Gross Unrealized Losses
(Dollars in thousands) |  |  |  |  |  |
Continuous loss position less than twelve months: |  |  |  |  |  |  |  |  |  |  |  |
Agency notes and bonds |  |  | 2 |  |  | $ | 1,398 |  |  | $ | 2 |
Agency mortgage-backed securities |  |  | 10 |  |  |  | 7,284 |  |  |  | 22 |
Municipal obligations |  |  | 8 |  |  |  | 3,021 |  |  |  | 31 |
Total less than twelve months |  |  | 20 |  |  |  | 11,703 |  |  |  | 55 |
Continuous loss position more than twelve months: |  |  |  |  |  |  |  |  |  |  |  |
Agency CMO |  |  | 9 |  |  |  | 6,249 |  |  |  | 57 |
Agency mortgage-backed securities |  |  | 4 |  |  |  | 4,294 |  |  |  | 26 |
Municipal obligations |  |  | 5 |  |  |  | 2,336 |  |  |  | 48 |
Total more than twelve months |  |  | 18 |  |  |  | 12,879 |  |  |  | 131 |
Total securities available for sale |  |  | 38 |  |  | $ | 24,582 |  |  | $ | 186 |

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