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Note 6 - Investment Securities Available For Sale (Tables) | 9 Months Ended
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Sep. 30, 2013
Investments, Debt and Equity Securities [Abstract] |
Schedule of Available-for-sale Securities Reconciliation [Table Text Block] |
|  | September 30, 2013 |
(Dollar amounts in thousands) |  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
U.S. government agency securities |  | $ | 27,550 |  |  | $ | 161 |  |  | $ | (1,368 | ) |  | $ | 26,343 |
Obligations of states and political subdivisions: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Taxable |  |  | 5,364 |  |  |  | 215 |  |  |  | (21 | ) |  |  | 5,558 |
Tax-exempt |  |  | 90,441 |  |  |  | 1,885 |  |  |  | (3,263 | ) |  |  | 89,063 |
Mortgage-backed securities in government-sponsored entities |  |  | 55,633 |  |  |  | 696 |  |  |  | (1,246 | ) |  |  | 55,083 |
Private-label mortgage-backed securities |  |  | 3,597 |  |  |  | 377 |  |  |  | - |  |  |  | 3,974 |
Total debt securities |  |  | 182,585 |  |  |  | 3,334 |  |  |  | (5,898 | ) |  |  | 180,021 |
Equity securities in financial institutions |  |  | 750 |  |  |  | - |  |  |  | - |  |  |  | 750 |
Total |  | $ | 183,335 |  |  | $ | 3,334 |  |  | $ | (5,898 | ) |  | $ | 180,771 |
|  | December 31, 2012 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
U.S. government agency securities |  | $ | 24,485 |  |  | $ | 566 |  |  | $ | (91 | ) |  | $ | 24,960 |
Obligations of states and political subdivisions: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Taxable |  |  | 6,888 |  |  |  | 738 |  |  |  | - |  |  |  | 7,626 |
Tax-exempt |  |  | 80,391 |  |  |  | 4,684 |  |  |  | (104 | ) |  |  | 84,971 |
Mortgage-backed securities in government-sponsored entities |  |  | 69,238 |  |  |  | 1,929 |  |  |  | (65 | ) |  |  | 71,102 |
Private-label mortgage-backed securities |  |  | 4,553 |  |  |  | 511 |  |  |  | - |  |  |  | 5,064 |
Total debt securities |  |  | 185,555 |  |  |  | 8,427 |  |  |  | (260 | ) |  |  | 193,723 |
Equity securities in financial institutions |  |  | 750 |  |  |  | - |  |  |  | - |  |  |  | 750 |
Total |  | $ | 186,305 |  |  | $ | 8,427 |  |  | $ | (260 | ) |  | $ | 194,473 |
Investments Classified by Contractual Maturity Date [Table Text Block] |
(Dollar amounts in thousands) |  | Amortized Cost |  |  | Fair Value |
Due in one year or less |  | $ | 2,736 |  |  | $ | 2,768 |
Due after one year through five years |  |  | 4,071 |  |  |  | 4,261 |
Due after five years through ten years |  |  | 21,891 |  |  |  | 21,963 |
Due after ten years |  |  | 153,887 |  |  |  | 151,029 |
Total |  | $ | 182,585 |  |  | $ | 180,021 |
Realized Gain (Loss) on Investments [Table Text Block] |
|  | For the Three Months Ended September 30, |  |  | For the Nine Months Ended September 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Proceeds from sales |  | $ | - |  |  | $ | 5,622 |  |  | $ | 8,136 |  |  | $ | 27,426 |
Gross realized gains |  |  | - |  |  |  | 154 |  |  |  | 204 |  |  |  | 462 |
Gross realized losses |  |  | - |  |  |  | (2 | ) |  |  | (29 | ) |  |  | (14 | )
Schedule of Unrealized Loss on Investments [Table Text Block] |
|  | September 30, 2013 |
|  | Less than Twelve Months |  |  | Twelve Months or Greater |  |  | Total |
(Dollar amounts in thousands) |  | Fair Value |  |  | Gross Unrealized Losses |  |  | Fair Value |  |  | Gross Unrealized Losses |  |  | Fair Value |  |  | Gross Unrealized Losses |
U.S. government agency securities |  | $ | 17,408 |  |  | $ | (1,368 | ) |  | $ | - |  |  | $ | - |  |  | $ | 17,408 |  |  | $ | (1,368 | )
Obligations of states and political subdivisions |  |  | 30,690 |  |  |  | (3,244 | ) |  |  | 448 |  |  |  | (40 | ) |  |  | 31,138 |  |  |  | (3,284 | )
Mortgage-backed securities in government-sponsored entities |  |  | 30,295 |  |  |  | (1,061 | ) |  |  | 5,719 |  |  |  | (185 | ) |  |  | 36,014 |  |  |  | (1,246 | )
Total |  | $ | 78,393 |  |  | $ | (5,673 | ) |  | $ | 6,167 |  |  | $ | (225 | ) |  | $ | 84,560 |  |  | $ | (5,898 | )
|  | December 31, 2012 |
|  | Less than Twelve Months |  |  | Twelve Months or Greater |  |  | Total |
|  | Fair Value |  |  | Gross Unrealized Losses |  |  | Fair Value |  |  | Gross Unrealized Losses |  |  | Fair Value |  |  | Gross Unrealized Losses |
U.S. government agency securities |  | $ | 9,938 |  |  | $ | (91 | ) |  | $ | - |  |  | $ | - |  |  | $ | 9,938 |  |  | $ | (91 | )
Obligations of states and political subdivisions |  |  | 9,240 |  |  |  | (104 | ) |  |  | - |  |  |  | - |  |  |  | 9,240 |  |  |  | (104 | )
Mortgage-backed securities in government-sponsored entities |  |  | 12,353 |  |  |  | (65 | ) |  |  | - |  |  |  | - |  |  |  | 12,353 |  |  |  | (65 | )
Total |  | $ | 31,531 |  |  | $ | (260 | ) |  | $ | - |  |  | $ | - |  |  | $ | 31,531 |  |  | $ | (260 | )

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