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Note 8 - Borrowings (Tables) | 12 Months Ended
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Dec. 31, 2014
Debt Disclosure [Abstract] |
Schedule of Maturities of Long-term Debt [Table Text Block] |
|  | Fixed |  |  | Floating |  |  |  |  |
(in thousands) |  | Rate |  |  | Rate |  |  | Total |
2015 |  | $ | 120,000 |  |  | $ | - |  |  | $ | 120,000 |
2033 |  |  | - |  |  |  | 8,248 |  |  |  | 8,248 |
Total borrowings |  | $ | 120,000 |  |  | $ | 8,248 |  |  | $ | 128,248 |

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- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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