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Note 16 - Accumulated Other Comprehensive Income (Details Textual) - USD ($) $ in Thousands | Jan. 01, 2018 | Dec. 31, 2017
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Retained Earnings [Member] | Accounting Standards Update 2016-01 [Member] |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption | $ (1,100) | $ (1,136) | [1]
[1] | Represents the impact of change in accounting policies for its respective Accounting Standard Updates ("ASU"). See Footnote 2 of the Notes to Condensed Consolidated Financial Statements for additional disclosure.

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- Definition Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption. + References No definition available. + Details
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- Details
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