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Note 10 - Fair Value Measurements (Details) - Assets Measured at Fair Value Based on Significant Unobservable Inputs (USD $) In Thousands, unless otherwise specified | 12 Months Ended |
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Dec. 31, 2013 | Jun. 30, 2014
Assets Measured at Fair Value Based on Significant Unobservable Inputs [Abstract] |  |
Balance, beginning of period | $ 230 | $ 219
Balance, end of period | 219 | 219
Principal redemption | $ (11) |

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- Definition Amount of settlement of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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