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Note 5 - Accumulated Other Comprehensive Income (Tables) | 3 Months Ended
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Mar. 31, 2015
Disclosure Text Block [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  | Unrealized gains on |
|  | available-for-sale |
(Dollars in thousands) |  | securities (a) |
Balance as of December 31, 2014 |  | $ | 2,548 |
Other comprehensive income before reclassification |  |  | 562 |
Amount reclassified from accumulated other comprehensive income |  |  | (16 | )
Period change |  |  | 546 |
Balance at March 31, 2015 |  | $ | 3,094 |
|  | Unrealized gains on |
|  | available-for-sale |
(Dollars in thousands) |  | securities (a) |
Balance as of December 31, 2013 |  | $ | (2,237 | )
Other comprehensive income before reclassification |  |  | 1,847 |
Amount reclassified from accumulated other comprehensive income |  |  | 4 |
Period change |  |  | 1,851 |
Balance at March 31, 2014 |  | $ | (386 | )
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] |
|  |  |  | Amount Reclassified from Accumulated Other Comprehensive |  |
(Dollars in thousands) |  |  |  | Income (a) |  | Affected Line Item in the Statement Where
Details about other comprehensive income |  |  |  | March 31, 2015 |  | Net Income is Presented
Unrealized gains (losses) on available-for-sale securities |  |  | $ | 24 |  | Investment securities gains (losses), net
|  |  |  | (8 | ) | Income taxes
|  |  | $ | 16 |  | Net of tax
|  |  | Amount Reclassified from Accumulated Other Comprehensive |  |
(Dollars in thousands) |  |  | Income (a) |  | Affected Line Item in the Statement Where
Details about other comprehensive income |  |  | March 31, 2014 |  | Net Income is Presented
Unrealized gains (losses) on available-for-sale securities |  |  | $ | (6 | ) | Investment securities gains (losses), net
|  |  |  | 2 |  | Income taxes
|  |  | $ | (4 | ) | Net of tax

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580 + Details
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- Definition Tabular disclosure of the net gain (loss) and net prior service cost or credit recognized in other comprehensive income (loss) for the period for pension plans and/or other employee benefit plans, and reclassification adjustments of other comprehensive income (loss) for the period, as those amounts, including amortization of the net transition asset or obligation, are recognized as components of net periodic benefit cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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