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Note 6 - Investment Securities Available For Sale (Tables) | 3 Months Ended
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Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract] |
Schedule of Available-for-sale Securities Reconciliation [Table Text Block] |
|  | March 31, 2015 |
|  |  |  |  |  | Gross |  |  | Gross |  |  |  |  |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
(Dollar amounts in thousands) |  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
U.S. government agency securities |  | $ | 22,697 |  |  | $ | 383 |  |  | $ | (159 | ) |  | $ | 22,921 |
Obligations of states and political subdivisions: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Taxable |  |  | 2,952 |  |  |  | 305 |  |  |  | - |  |  |  | 3,257 |
Tax-exempt |  |  | 89,544 |  |  |  | 3,749 |  |  |  | (453 | ) |  |  | 92,840 |
Mortgage-backed securities in government-sponsored entities |  |  | 28,055 |  |  |  | 573 |  |  |  | (111 | ) |  |  | 28,517 |
Private-label mortgage-backed securities |  |  | 2,500 |  |  |  | 225 |  |  |  | - |  |  |  | 2,725 |
Total debt securities |  |  | 145,748 |  |  |  | 5,235 |  |  |  | (723 | ) |  |  | 150,260 |
Equity securities in financial institutions |  |  | 750 |  |  |  | 149 |  |  |  | - |  |  |  | 899 |
Total |  | $ | 146,498 |  |  | $ | 5,384 |  |  | $ | (723 | ) |  | $ | 151,159 |
|  | December 31, 2014 |
|  |  |  |  |  | Gross |  |  | Gross |  |  |  |  |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
|  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
U.S. government agency securities |  | $ | 23,035 |  |  | $ | 311 |  |  | $ | (450 | ) |  | $ | 22,896 |
Obligations of states and political subdivisions: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Taxable |  |  | 2,953 |  |  |  | 226 |  |  |  | - |  |  |  | 3,179 |
Tax-exempt |  |  | 91,916 |  |  |  | 3,803 |  |  |  | (553 | ) |  |  | 95,166 |
Mortgage-backed securities in government-sponsored entities |  |  | 29,150 |  |  |  | 475 |  |  |  | (234 | ) |  |  | 29,391 |
Private-label mortgage-backed securities |  |  | 2,672 |  |  |  | 247 |  |  |  | - |  |  |  | 2,919 |
Total debt securities |  |  | 149,726 |  |  |  | 5,062 |  |  |  | (1,237 | ) |  |  | 153,551 |
Equity securities in financial institutions |  |  | 750 |  |  |  | 33 |  |  |  | - |  |  |  | 783 |
Total |  | $ | 150,476 |  |  | $ | 5,095 |  |  | $ | (1,237 | ) |  | $ | 154,334 |
Investments Classified by Contractual Maturity Date [Table Text Block] |
|  | Amortized |  |  | Fair |
(Dollar amounts in thousands) |  | Cost |  |  | Value |
Due in one year or less |  | $ | 998 |  |  | $ | 1,014 |
Due after one year through five years |  |  | 12,447 |  |  |  | 12,820 |
Due after five years through ten years |  |  | 20,148 |  |  |  | 20,888 |
Due after ten years |  |  | 112,155 |  |  |  | 115,538 |
Total |  | $ | 145,748 |  |  | $ | 150,260 |
Realized Gain (Loss) on Investments [Table Text Block] |
(Dollar amounts in thousands) |  | For the Three Months Ended March 31, |
|  | 2015 |  |  | 2014 |
Proceeds from sales |  | $ | 1,590 |  |  | $ | 514 |
Gross realized gains |  |  | 48 |  |  |  | - |
Gross realized losses |  |  | (24 | ) |  |  | (6 | )
Schedule of Unrealized Loss on Investments [Table Text Block] |
|  | March 31, 2015 |
|  | Less than Twelve Months |  |  | Twelve Months or Greater |  |  | Total |
|  |  |  |  |  | Gross |  |  |  |  |  |  | Gross |  |  |  |  |  |  | Gross |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
(Dollar amounts in thousands) |  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
U.S. government agency securities |  | $ | 1,988 |  |  | $ | (12 | ) |  | $ | 13,101 |  |  | $ | (147 | ) |  | $ | 15,089 |  |  | $ | (159 | )
Obligations of states and political subdivisions |  |  | 4,682 |  |  |  | (34 | ) |  |  | 12,767 |  |  |  | (419 | ) |  |  | 17,449 |  |  |  | (453 | )
Mortgage-backed securities in government-sponsored entities |  |  | - |  |  |  | - |  |  |  | 7,815 |  |  |  | (111 | ) |  |  | 7,815 |  |  |  | (111 | )
Total |  | $ | 6,670 |  |  | $ | (46 | ) |  | $ | 33,683 |  |  | $ | (677 | ) |  | $ | 40,353 |  |  | $ | (723 | )
|  | December 31, 2014 |
|  | Less than Twelve Months |  |  | Twelve Months or Greater |  |  | Total |
|  |  |  |  |  | Gross |  |  |  |  |  |  | Gross |  |  |  |  |  |  | Gross |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
|  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
U.S. government agency securities |  | $ | - |  |  | $ | - |  |  | $ | 15,734 |  |  | $ | (450 | ) |  | $ | 15,734 |  |  | $ | (450 | )
Obligations of states and political subdivisions |  |  | 2,406 |  |  |  | (10 | ) |  |  | 18,232 |  |  |  | (543 | ) |  |  | 20,638 |  |  |  | (553 | )
Mortgage-backed securities in government-sponsored entities |  |  | - |  |  |  | - |  |  |  | 16,774 |  |  |  | (234 | ) |  |  | 16,774 |  |  |  | (234 | )
Total |  | $ | 2,406 |  |  | $ | (10 | ) |  | $ | 50,740 |  |  | $ | (1,227 | ) |  | $ | 53,146 |  |  | $ | (1,237 | )

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