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Note 11 - Reclassifications from Accumulated Other Comprehensive Income (Tables) | 3 Months Ended
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Mar. 31, 2014
Disclosure Text Block [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
Changes in Accumulated Other Comprehensive Income Unrealized Gains and Losses on Available-for-Sale Securities For the Three Months Ended March 31, 2014 (net of tax) |
Balance at December 31, 2013 |  | $ | 7,436 |
Other comprehensive loss before reclassifications |  |  | (753 | )
Amounts reclassified from accumulated other comprehensive loss |  |  | (11 | )
Net current-period other comprehensive loss |  |  | (764 | )
Balance at March 31, 2014 |  | $ | 6,672 |
Changes in Accumulated Other Comprehensive Income Unrealized Gains and Losses on Available-for-Sale Securities For the Three Months Ended March 31, 2013 (net of tax) |
Balance at December 31, 2012 |  | $ | 2,597 |
Other comprehensive gain before reclassifications |  |  | 5,435 |
Amounts reclassified from accumulated other comprehensive loss |  |  | (56 | )
Net current-period other comprehensive gain |  |  | 5,379 |
Balance at March 31, 2013 |  | $ | 7,976 |
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] |
Reclassifications from Accumulated Other Comprehensive Income For the Three Months Ended March 31, 2014
|  | Amount Reclassified |  | Affected Line Item in Statement of Operations
Unrealized losses on available-for-sale securities |  | $ | (18 | ) | Loss on marketable securities
Total before tax |  |  | (18 | ) |
Tax benefit |  |  | 7 |  |
Total reclassifications |  | $ | (11 | ) |
Reclassifications from Accumulated Other Comprehensive Income For the Three Months Ended March 31, 2013
|  | Amount Reclassified |  | Affected Line Item in Statement of Operations
Unrealized losses on available-for-sale securities |  | $ | (92 | ) | Loss on marketable securities
Total before tax |  |  | (92 | ) |
Tax benefit |  |  | 36 |  |
Total reclassifications |  | $ | (56 | ) |

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- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + References No definition available. + Details
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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=28358780&loc=SL7669686-108580 + Details
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